Outdoor portable sound box with pull rod

Abstract

The invention discloses an outdoor portable sound box with a pull rod, and belongs to the technical field of sound box equipment.The outdoor portable sound box comprises a sound box body and a hollow limiting cavity, the rear surface of the sound box body is fixedly connected with a pull rod cavity, the upper surface of the pull rod cavity is provided with a sliding cavity, and the interior of the sliding cavity is slidably connected with an extension cavity; a vertical rod is rotatably connected to the lower surface of the interior of the hollow limiting cavity, a sliding plate is slidably connected to the interior of the extending cavity, and springs are symmetrically arranged on the outer side wall of the sliding plate. The length adjustment design of the pull rod of the sound box fully considers the requirements of the user in different use scenes, thereby greatly improving the convenience and flexibility of use. When a user pulls the handle upwards, the pull rod drives the extending block and the sliding plate to slide upwards in the extending cavity, and the pull rod is stably locked in an initial extending state. At the moment, a user can easily drag the sound box to move, so that the pull rod is prevented from loosening, slipping and the like in the use process, and stable and reliable support is provided for moving the sound box.

Description

Technical Field

[0001] The invention relates to speaker equipment technology, in particular to an outdoor portable speaker with a pull rod. Background Art

[0002] In today's fast-paced lives, people's pursuit of music is no longer limited to indoor spaces. The demand for music companionship is growing in outdoor leisure, travel, picnics, sports, and other scenarios. Outdoor portable speakers have emerged as a valuable companion for people to enjoy music and add fun to their lives. However, existing outdoor portable speakers still have some shortcomings in design and use, which urgently need improvement. On the one hand, the design of the pull rod and mobile wheels of traditional outdoor portable speakers is not perfect. The pull rods of some speakers are cumbersome to operate during the process of pulling out and storing, and users need to spend extra time and energy to adjust them. Moreover, the connection stability between the pull rod and the speaker body is not good, and it is easy to shake or even accidentally slip during the pulling process, which not only affects the user experience, but may also cause damage to the speaker. In terms of mobile wheels, the mobile wheels of many speakers are exposed when not in use, which is prone to collision and wear, shortening the service life. At the same time, it will also increase the overall size and weight of the speaker, which is not conducive to carrying; On the other hand, speakers also have problems with protection and storage. When the speaker is in motion, the internal electronic components are easily affected by vibration, resulting in reduced sound quality or even damage. In addition, when traditional speakers are stored, the various components are not well integrated together, taking up a large space and being inconvenient to store and carry. In complex outdoor environments, dust and debris can easily enter the interior of the speaker, corroding the electronic components and affecting the performance and life of the speaker. These problems seriously restrict the convenience and reliability of outdoor portable speakers in actual use, and cannot fully meet users' needs for high-quality, convenient music experience. Therefore, it is urgent to develop a more innovative and practical outdoor portable speaker. Summary of the Invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a portable pull rod telescopic function; another purpose of the present invention is to provide a reliable mobile wheel storage protection mechanism.

[0004] The technical solution is as follows: it comprises a speaker body, the rear surface of the speaker body is fixedly connected with a pull rod cavity, the upper surface of the pull rod cavity is provided with a sliding cavity, the interior of the sliding cavity is slidably connected with an extension cavity, the interior of the extension cavity is slidably connected with a slide plate, the upper surface of the slide plate is fixedly connected with an extension block, the top end of the extension block extends to the top end of the extension cavity, the interior of the slide plate is provided with a hollow limiting cavity, the inner lower surface of the hollow limiting cavity is rotatably connected with a vertical rod, the top end of the vertical rod passes through the top end of the extension block and is fixedly connected with a pull rod, the top end of the pull rod is fixedly connected with a handle, the outer side wall of the slide plate is symmetrically provided with elastic grooves, the interior of the elastic groove is slidably connected with a vertical plate, the opposite sides of the vertical plates are fixedly connected with double-sided wedges, and the vertical plates are connected to adjacent The inner wall of the elastic groove is fixedly connected with a spring 1, and a plurality of limit grooves are symmetrically provided inside the extension cavity. The inner part of the hollow limit cavity is symmetrically slidably connected with an arc plate, and the opposite sides of the two arc plates are fixedly connected with limit columns, and the opposite ends of the two limit columns extend to the interior of the adjacent elastic groove and contact the double-sided wedge block. The outer side wall of the vertical rod is located on the inner lower surface of the hollow limit cavity and is fixedly connected with a double-headed protrusion, and the double-headed protrusion is engaged with the inner part of the adjacent arc plate. An oblique groove is provided inside the double-headed protrusion, and a perforated card strip is slidably connected inside the oblique groove. A metal rolling ball is rolled inside the perforated card strip, and a long reset torsion spring is wound around the outer side wall of the vertical rod, and a card strip limit groove is provided on the rear surface of the extension cavity.

[0005] The top of the outer wall of the two rotating rings is fixedly connected to the extrusion plate, and the bottom end of the two rotating rings is fixedly connected to the upper surface of the vertical groove.

[0006] Furthermore, a sliding opening is provided on the inner lower surface of the rotating groove, and a wheel storage cavity is provided on the lower surface of the sliding opening. A sliding column is slidingly connected to the inner part of the sliding opening, and the upper surfaces of the two sliding columns are fixedly connected to the force-bearing plates. The bottom end of the sliding column is located in the inner part of the wheel storage cavity and is slidingly connected to the support plate. The lower surfaces of the two support plates are fixedly connected to the moving wheels. A reset spring ring is wrapped around the outer side wall of the sliding column, and the top end of the reset spring ring is fixedly connected to the inner upper surface of the wheel storage cavity, and the bottom end of the reset spring ring is fixedly connected to the upper surface of the support plate.

[0007] Furthermore, a wheel outlet is provided on the inner lower surface of the wheel storage cavity, and an air extrusion groove is provided on the opposite sides of the two wheel outlets. A baffle plate is slidably connected to the inside of the air extrusion groove. A card slot is provided inside the two wheel outlets, and the opposite ends of the two baffle plates are engaged with the adjacent card slots. The air extrusion groove is fixedly connected to the adjacent air extraction cavity through the air slot.

[0008] Furthermore, a locking groove is provided on the inner left side of the fixing groove, a transverse sliding groove is provided on the inner left side of the locking groove, a dislocation rod is slidably connected to the inner side of the transverse sliding groove, and an elastic airbag is fixedly connected to the inner left side of the transverse sliding groove.

[0009] Furthermore, a block groove is provided on the left side of the fixing rod, a locking plate is slidably connected to the inside of the block groove, a wedge block is fixedly connected to the left side of the locking plate, and a plurality of springs are fixedly connected to the inside of the block groove on the right side of the locking plate.

[0010] Furthermore, a torsion spring is wound around the outer wall of the rotating rod, the front end of the outer wall of the torsion spring is fixedly connected to the inner wall of the rotating circle, and the rear end of the torsion spring is fixedly connected to the outer wall of the rotating rod.

[0011] Furthermore, function buttons are symmetrically fixedly connected to the upper surface of the speaker body, a dust cover is fixedly connected to the front surface of the speaker body, and a power display screen is fixedly connected above the front surface of the speaker body.

[0012] Furthermore, the air extraction cavity includes a short plate. The lower surface of the short plate is fixedly connected to a vertical air extraction plate, the outer wall of the vertical air extraction plate is slidably connected to the cavity, the bottom end of the vertical air extraction plate is fixedly connected to a horizontal air extraction plate, the horizontal air extraction plate is slidably connected to the inner wall of the cavity, and the inner lower surface of the cavity is provided with an air outlet.

[0013] Beneficial effects: The pull rod length adjustment design of the speaker fully takes into account the needs of users in different usage scenarios, greatly improving the convenience and flexibility of use. When the user pulls the handle upward, the pull rod drives the extension block and the slide plate to slide upward in the extension cavity, and the pull rod is firmly locked in the initial extended state. At this time, the user can easily drag the speaker to move, ensuring that the pull rod will not loosen or slip during use, providing stable and reliable support for the mobile speaker. If the user needs to adjust the length of the pull rod, just turn the handle and apply a certain upward pull to the handle to overcome the elastic force of spring one, so that the double-sided wedge is withdrawn from the current limit slot, and then the pull rod is stretched or shortened to the appropriate length. Reset the handle, and the double-sided wedge will be driven by the elastic force of spring one to re-enter the corresponding limit slot, quickly completing the length fixation. This adjustment method is simple to operate and does not require any tools. Whether on a flat indoor floor or uneven outdoor road, users can freely adjust the pull rod length according to their height, force application habits, and actual terrain to find the most comfortable dragging posture, effectively reducing fatigue during movement, making speaker movement easier and more efficient, and perfectly adapting to various usage scenarios; The speaker has a reliable protection mechanism for storing the moving wheels. The design of the wheel storage cavity can effectively protect the moving wheels and prevent them from being hit or damaged when not in use. The wheel outlet on the lower surface of the wheel storage cavity has an air extrusion groove on the opposite side of its interior. The air extrusion groove is connected to a baffle plate that slides inside the baffle plate, and there is also a card slot inside the wheel outlet. When the pull rod is pulled upward, the air extraction cavity rises to extract the air in the air extrusion groove. The air pressure difference causes the baffle plate to overcome the locking force of the card slot and slide into the air extrusion groove, opening the wheel outlet and smoothly extending the moving wheels. When the pull rod is pushed downward, the air extraction cavity descends to fill the air extrusion groove. The increased air pressure pushes the baffle plate to slide toward the wheel outlet, and the baffle plate re-engages with the card slot to close the wheel outlet. This sliding of the baffle plate not only prevents the moving wheels from falling out due to vibration during transportation, but also ensures the sealing of the interior of the wheel storage cavity to prevent debris from entering. This ensures that the moving wheels can be firmly stored in the wheel storage cavity when not in use, extending the service life of the moving wheels. At the same time, it also ensures the stability of the overall structure of the speaker and provides users with a reliable usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional structural diagram of the pull rod cavity of the present invention; Figure 3 This invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 This is a schematic diagram of the overall cross-sectional structure of the pull rod of the present invention; Figure 5 The present invention Figure 4 A schematic diagram of the enlarged structure at point B; Figure 6 It is a schematic cross-sectional structural diagram of the rotary trough of the present invention; Figure 7 This invention Figure 6 Schematic diagram of the enlarged structure at C; Figure 8 This invention Figure 6 A schematic diagram of the enlarged structure at D; Figure 9 It is a schematic cross-sectional structural diagram of the air pumping cavity of the present invention; Figure 10 It is a rear view structural schematic diagram of the present invention; Figure 11 It is a schematic cross-sectional view of the double-headed bump of the present invention; Figure 12 This is a schematic diagram of the internal rotation of the pull rod cavity in the tilted state of the present invention; Figure 13 This is a schematic diagram of the internal cross-sectional structure of the pull rod cavity in the tilted state of the present invention; Figure 14 It is a schematic diagram of the state in which the present invention is tilted when encountering a roadblock.

[0015] In the figure: 1. speaker body; 2. pull rod cavity; 3. sliding cavity; 4. extension cavity; 5. slide plate; 6. extension block; 7. pull rod; 8. handle; 9. spring groove; 10. vertical plate; 11. double-sided wedge block; 12. spring 1; 13. limit groove; 14. fixed groove; 15. vertical groove; 16. fixed rod; 17. vertical block; 18. horizontal plate; 19. air pumping cavity; 20. rotating groove; 21. rotating rod; 22. rotating circle; 23. abutment plate; 24. extrusion plate; 25. wheel storage cavity; 26. sliding mouth; 27. sliding column; 28. force plate; 29. support plate; 30. moving wheel; 31. reset spring ring; 32. wheel outlet; 33. air extrusion groove; 34 , stop plate; 35, card slot; 36, locking slot; 37, horizontal sliding slot; 38, dislocating rod; 39, card block slot; 40, locking plate; 41, wedge block; 42, spring 2; 43, torsion spring; 44, function button; 45, dust cover; 46, power display screen; 47, elastic airbag; 48, hollow limit cavity; 49, vertical rod; 50, arc plate; 51, limit column; 52, double-headed protrusion; 53, inclined slot; 54, card strip with hole; 55, metal rolling ball; 56, reset long torsion spring; 57, card strip limit slot; 101, short plate; 102, vacuum vertical plate; 103, cavity; 104, vacuum horizontal plate; 105, air outlet. DETAILED DESCRIPTION

[0016] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example: Figures 1-10As shown, it includes a speaker body 1, which is characterized in that: the rear surface of the speaker body 1 is fixedly connected to a pull rod cavity 2, the upper surface of the pull rod cavity 2 is provided with a sliding cavity 3, the interior of the sliding cavity 3 is slidably connected to an extension cavity 4, the interior of the extension cavity 4 is slidably connected to a slide plate 5, the upper surface of the slide plate 5 is fixedly connected to an extension block 6, the top of the extension block 6 extends to the top of the extension cavity 4, a hollow limiting cavity 48 is provided inside the slide plate 5, the inner lower surface of the hollow limiting cavity 48 is rotatably connected to a vertical rod 49, the top of the vertical rod 49 passes through the top of the extension block 6 and is fixedly connected to a pull rod 7, the top of the pull rod 7 is fixedly connected to a handle 8, the outer side wall of the slide plate 5 is symmetrically provided with a spring groove 9, the inner side of the spring groove 9 is slidably connected to a vertical plate 10, the opposite sides of the vertical plate 10 are fixedly connected to double-sided wedge blocks 11, the vertical plate 10 and the inner side of the adjacent spring groove 9 The side wall is fixedly connected with a spring 12, and a plurality of limit grooves 13 are symmetrically provided inside the extension cavity 4. The interior of the hollow limit cavity 48 is symmetrically slidably connected with an arc plate 50, and the opposite sides of the two arc plates 50 are fixedly connected with limit columns 51. The opposite ends of the two limit columns 51 extend to the interior of the adjacent elastic groove 9 and contact the double-sided wedge block 11. The outer wall of the vertical rod 49 is located on the inner lower surface of the hollow limit cavity 48 and is fixedly connected with a double-headed protrusion 52. The double-headed protrusion 52 is engaged with the interior of the adjacent arc plate 50. An inclined groove 53 is provided inside the double-headed protrusion 52. A perforated card strip 54 is slidably connected inside the inclined groove 53. A metal rolling ball 55 is rolled inside the perforated card strip 54. A reset long torsion spring 56 is wound around the outer wall of the vertical rod 49, and a card strip limit groove 57 is provided on the rear surface of the extension cavity 4. When the pull rod needs to be used to move the speaker, the user needs to turn the handle and then pull the handle 8 upward, which drives the extension block 6 and the slide plate 5 to slide upward in the extension cavity 4 through the pull rod 7. During the sliding process of the slide plate 5, the double-sided wedge 11 in the spring groove 9 is automatically engaged with the limit groove 13 at the bottom of the extension cavity 4 by the elastic force of spring 12. At the same time, the limit column 51 tightly presses against the wedge surface of the double-sided wedge 11, limiting its lateral displacement through mechanical engagement, ensuring that the double-sided wedge 11 and the limit groove 13 form a rigid locking structure, firmly locking the pull rod in the initial extended state, and providing stable support for the user to drag the speaker. If the user needs to adjust the length of the pull rod, he only needs to rotate it half a circle clockwise or counterclockwise with the handle 8 as the fulcrum, driving the vertical rod 49 to rotate synchronously, so that the double-headed protrusion 52 on the outer wall of the vertical rod 49 disengages from the engagement with the curved plate 50, thereby releasing the radial constraint on the curved plate 50. Without the mechanical restraint of the double-headed protrusion 52, the double-sided wedge 11 is no longer subject to the tightening force transmitted by the curved plate 50 through the limiting column 51. The user can easily overcome the preload of spring 12 and pull the pull rod upward or press it downward to the desired length. After adjusting to the desired length, release the handle 8, and the elastic force of spring 12 pushes the double-sided wedge 11 back into the limiting groove 13 of the corresponding height. At the same time, the curved plate 50 re-engages the double-headed protrusion 52 under the action of the return inertia, and the limiting column 51 forms a secondary lock for the double-sided wedge 11, ensuring that the pull rod remains stable at any adjustment position, meeting the towing needs of users of different heights and complex terrain. like Figure 14As shown, when the pull rod is pulled out and in motion, such as when the speaker is tilted and pulled on an uneven surface such as a ramp or staircase, the pull rod 7 is subjected to a pulling force in the tilting direction. The vertical rod 49 then tends to deflect at a certain angle, but at this time, the long reset torsion spring 56 comes into play, attempting to maintain the initial state of the vertical rod 49 and limit its excessive rotation. At the same time, during the tilting and pulling, the metal ball 55 rolls in the perforated clamping bar 54 and slides along the inclined groove 53. The perforated clamping bar 54 will be engaged in the clamping bar limit groove 57, and its limited sliding makes it difficult for the double-headed protrusion 52 to rotate. Because the double-headed protrusion 52 is blocked from rotation and cannot be disengaged from the curved plate 50, the limit post 51 always remains extended, pressing against the double-sided wedge 11, so that the double-sided wedge 11 is firmly stuck in the limit groove 13. Even under the shaking caused by tilting and pulling, the slide plate 5 will not slide accidentally, achieving the effect of preventing accidental touch, ensuring that the speaker pull rod can be used stably under complex road conditions. After returning to the vertical state, the metal ball 55 will drive the perforated card strip 54 to roll to the inside of the inclined groove 53. At this time, the perforated card strip 54 will not be engaged with the limit groove 13, and the rotation and extension function can be realized. The above is combined with the scenario of uneven roads, and it is achieved that when used in a vertical state, the user can rotate and pull out the pull rod 7 to pull the speaker forward. Its core lies in the built-in gravity locking mechanism. When the device is upright or tilted, the pull rod 7 can be rotated to control the extension and retraction of the pull rod 7. However, when the device is tilted and moves, encountering steps or bumpy roads, causing the box to accidentally tilt, the gravity locking mechanism will actively lock the extension mechanism of the pull rod, effectively preventing it from being accidentally unlocked and extended due to external force impact or center of gravity shift, protecting the user and the speaker.

[0018] In this embodiment, a fixed groove 14 is provided on the lower surface of the sliding cavity 3, a vertical groove 15 is provided on the lower surface of the fixed groove 14, and a fixed rod 16 is fixedly connected to the lower surface of the extension cavity 4. The fixed rod 16 is slidably connected to the inner wall of the fixed groove 14, and the lower surface of the fixed rod 16 is fixedly connected to a vertical block 17. The lower surface of the vertical block 17 is fixedly connected to a horizontal plate 18. The outer side wall of the horizontal plate 18 is symmetrically fixedly connected to the air extraction cavity 19, and the inner side wall of the vertical groove 15 is symmetrically provided with a rotating groove 20. The rear surface of the rotating groove 20 is symmetrically fixedly connected to a rotating rod 21. The outer side wall of the rotating rod 21 is rotatably connected to a rotating circle 22. The opposite sides of the outer side wall of the rotating circle 22 are fixedly connected to a plate 23. The top of the outer side wall of the rotating circle 22 is fixedly connected to an extrusion plate 24. The bottom end of the air extraction cavity 19 is fixed to the upper surface of the vertical groove 15 The lower surface of the inner part of the rotating groove 20 is provided with a wheel storage cavity 25, and the upper surface of the inner part of the wheel storage cavity 25 is provided with a sliding port 26. The inner part of the sliding port 26 is slidably connected to a sliding column 27. The upper surface of the sliding column 27 is fixedly connected to a force-bearing plate 28. The bottom end of the sliding column 27 is located in the inner part of the wheel storage cavity 25 and is slidably connected to a support plate 29. The lower surface of the support plate 29 is fixedly connected to a moving wheel 30. A reset spring ring 31 is wound around the outer wall of the sliding column 27. The top end of the reset spring ring 31 is fixedly connected to the inner upper surface of the wheel storage cavity 25, and the bottom end of the reset spring ring 31 is fixedly connected to the upper surface of the support plate 29. A torsion spring 43 is wound around the outer wall of the rotating rod 21. The front end of the outer wall of the torsion spring 43 is fixedly connected to the inner wall of the rotating circle 22, and the rear end of the torsion spring 43 is fixedly connected to the outer wall of the rotating rod 21. When the pull rod 7 is pulled upward, the extension chamber 4 moves upward within the sliding chamber 3, and the fixed rod 16 moves synchronously with the extension chamber 4, driving the vertical block 17, the horizontal plate 18, and the air extraction chamber 19 upward. As the air extraction chamber 19 rises, its outer wall compresses the extrusion plate 24 on the rotating ring 22, causing the rotating ring 22 to rotate around the rotating rod 21, and the abutment plate 23 rotates accordingly. At this time, the extrusion plate 24 compresses the force-bearing plate 28, and the slide post 27 drives the support plate 29 and the moving wheel 30 downward, extending from the wheel storage chamber 25 and facilitating the movement of the speaker. To retract the moving wheel, the pull rod 7 is pushed downward, causing the extension chamber 4 to descend, and the air extraction chamber 19 to descend with it, no longer compressing the extrusion plate 24. The rotating ring 22 rotates in the opposite direction under the action of the torsion spring 43. The abutment plate 23 no longer compresses the force-bearing plate 28, and the elastic force of the reset spring 31 causes the slide post 27 to move upward, forcing the moving wheel 30 back into the wheel storage chamber 25, completing the retraction of the moving wheel.

[0019] In this embodiment, a wheel outlet 32 is formed on the lower surface of the wheel storage cavity 25. Air extrusion grooves 33 are formed on opposite sides of the wheel outlet 32. Baffle plates 34 are slidably connected to the interior of the air extrusion grooves 33. A clamping groove 35 is formed inside the wheel outlet 32. The opposite ends of the baffle plates 34 are clamped and connected to the adjacent clamping grooves 35. The air extrusion grooves 33 are fixedly connected to the adjacent air extraction cavity 19 through the air grooves. When the pull rod is pulled upward, the extension chamber 4 drives the air extraction chamber 19 upward, and the air extraction chamber 19 extracts air from the extrusion groove 33 through the air groove. The air pressure in the extrusion groove 33 decreases, causing the baffle plate 34 to overcome the locking force of the retaining groove 35 under the action of the air pressure difference and slide into the extrusion groove 33, opening the wheel exit 32. At this time, the moving wheel 30 is smoothly extended from the wheel exit 32 under the action of the return spring 31. When the pull rod is pushed downward, the moving wheel 30 is first retracted. At the same time, as the extension chamber 4 drives the air extraction chamber 19 downward, the air extraction chamber 19 fills the extrusion groove 33 with air. The air pressure in the air extrusion groove 33 increases, pushing the baffle plate 34 to slide toward the wheel exit 32. The baffle plate 34 re-engages with the card slot 35 to close the wheel exit 32. The sliding of the baffle plate 34 not only prevents the moving wheel 30 from falling out due to vibration during transportation, but also ensures the sealing of the interior of the wheel storage cavity 25, preventing debris from entering, and ensuring that the moving wheel 30 can be firmly stored in the wheel storage cavity 25 when not in use.

[0020] In this embodiment, a locking groove 36 is formed on the left side of the interior of the fixing groove 14, a transverse sliding groove 37 is formed on the left side of the interior of the locking groove 36, a dislocation rod 38 is slidably connected to the interior of the transverse sliding groove 37, an elastic airbag 47 is fixedly connected to the left side of the interior of the transverse sliding groove 37, a block groove 39 is formed on the left side of the fixing rod 16, a locking plate 40 is slidably connected to the interior of the block groove 39, a wedge block 41 is fixedly connected to the left side of the locking plate 40, and a plurality of springs 42 are fixedly connected to the right side of the locking plate 40 and the interior of the block groove 39; When the pull rod is pulled upward, causing the fixed rod 16 to move upward within the fixed slot 14, the locking plate 40 extends leftward under the elastic force of the second spring 42 until the wedge 41 engages the locking slot 36, locking the fixed rod 16 with the fixed slot 14 and preventing the pull rod from sliding down accidentally. To release the lock, the elastic airbag 47 is pushed. The elastic airbag 47 is compressed and deformed, and the gas in the elastic airbag 47 squeezes the dislocation rod 38, causing it to slide rightward within the horizontal sliding slot 37. Simultaneously, the dislocation rod 38 pushes the wedge 41 rightward, compressing the second spring 42 and dislodging the locking plate 40 from the locking slot 36, releasing the lock on the fixed rod 16. At this point, the pull rod can be pushed downward, allowing the fixed rod 16 to slide down within the fixed slot 14. When the fixed rod 16 has slid into place, the dislocation rod 38 is released, and the elastic airbag 47 returns to its original position, pushing the dislocation rod 38 back into its original position. Simultaneously, the second spring 42 pushes the locking plate 40 leftward, preparing for the next locking operation.

[0021] In this embodiment, function buttons 44 are symmetrically fixedly connected to the upper surface of the speaker body 1, a dust cover 45 is fixedly connected to the front surface of the speaker body 1, and a power display screen 46 is fixedly connected above the front surface of the speaker body 1; When the user uses the speaker, the function button 44 is the core of the operation. By pressing these buttons, the user can play, pause, switch tracks, adjust the volume and other functions. By pressing the corresponding button, the internal circuit is connected, and the instruction is transmitted to the speaker control system. The system performs the corresponding operation according to the instruction. Although the dust cover 45 has no active workflow, it plays a key role. It always blocks dust and debris, protects the sound unit and other components inside the speaker, maintains clear sound quality, and extends the service life of the speaker. The power display screen 46 monitors and displays the speaker power in real time. The change in battery power is converted into an electrical signal and transmitted to the screen drive circuit. After processing, the screen intuitively displays the power percentage, allowing the user to grasp the remaining power at any time, prepare for charging in advance, and ensure the continuous operation of the speaker. At the same time, the upper surface of the speaker body 1 is also provided with a dustproof component to protect the function button 44 from dust.

[0022] In this embodiment, the air extraction cavity 19 includes a short plate 101. A vertical air extraction plate 102 is fixedly connected to the lower surface of the short plate 101. A cavity 103 is slidably connected to the outer wall of the vertical air extraction plate 102. A horizontal air extraction plate 104 is fixedly connected to the bottom end of the vertical air extraction plate 102. The horizontal air extraction plate 104 is slidably connected to the inner wall of the cavity 103. An air outlet 105 is formed on the inner lower surface of the cavity 103. When the pull rod is pulled upward, the horizontal plate 18 drives the short plate 101 of the air extraction chamber 19 upward, thereby causing the vertical air extraction plate 102 and the horizontal air extraction plate 104 to slide upward in the cavity 103. At this time, the space in the cavity 103 increases, the air pressure decreases, and air is drawn into the cavity 103 from the extrusion groove 33 through the air groove. When the pull rod is pushed downward, the short plate 101 drives the vertical air extraction plate 102 and the horizontal air extraction plate 104 to slide downward in the cavity 103, the space in the cavity 103 decreases, the air pressure increases, and the air in the cavity is squeezed into the extrusion groove 33 through the air outlet 105 and the air groove, thereby changing the air pressure in the extrusion groove 33, pushing the stop plate 34 to move, and controlling the opening and closing of the wheel outlet 32.

[0023] The above embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An outdoor portable speaker with a pull rod, comprising a speaker body (1) and a hollow limiting cavity (48), characterized in that: The rear surface of the speaker body (1) is fixedly connected to a pull rod cavity (2), the upper surface of the pull rod cavity (2) is provided with a sliding cavity (3), the interior of the sliding cavity (3) is slidably connected to an extension cavity (4), the interior lower surface of the hollow limiting cavity (48) is rotatably connected to a vertical rod (49), the interior of the extension cavity (4) is slidably connected to a slide plate (5), the outer side wall of the slide plate (5) is symmetrically provided with a spring groove (9), the interior of the spring groove (9) is slidably connected to a vertical plate (10), the opposite sides of the vertical plate (10) are fixedly connected to a double-sided wedge block (11), the vertical plate (10) and the inner side wall of the adjacent spring groove (9) are fixedly connected to a spring 1 (12), the interior of the extension cavity (4) is symmetrically provided with a plurality of limiting grooves (13), the interior of the hollow limiting cavity (48) is symmetrically slidably connected to an arc plate (50 ), the opposite sides of the two arc-shaped plates (50) are fixedly connected to the limiting columns (51), the opposite ends of the two limiting columns (51) extend to the inside of the adjacent elastic groove (9) and contact the double-sided wedge block (11), the outer wall of the vertical rod (49), located on the inner lower surface of the hollow limiting cavity (48), is fixedly connected with a double-headed protrusion (52), the double-headed protrusion (52) is engaged with the inner part of the adjacent arc-shaped plate (50), an inclined groove (53) is provided inside the double-headed protrusion (52), the interior of the inclined groove (53) is slidably connected to a perforated card strip (54), the interior of the perforated card strip (54) is rollingly connected to a metal rolling ball (55), the outer wall of the vertical rod (49) is wound with a reset long torsion spring (56), and the rear surface of the extension cavity (4) is provided with a card strip limiting groove (57).

2. The outdoor portable speaker with a pull rod according to claim 1, characterized in that: The extension cavity (4) is slidably connected to a slide plate (5), the upper surface of the slide plate (5) is fixedly connected to an extension block (6), the top of the extension block (6) extends to the top of the extension cavity (4), the interior of the slide plate (5) is provided with a hollow limiting cavity (48), the top of the vertical rod (49) passes through the top of the extension block (6) and is fixedly connected to a pull rod (7), the top of the pull rod (7) is fixedly connected to a handle (8), the lower surface of the sliding cavity (3) is provided with a fixed groove (14), the lower surface of the fixed groove (14) is provided with a vertical groove (15), the lower surface of the extension cavity (4) is fixedly connected to a fixed rod (16), the fixed rod (16) and the inner wall of the fixed groove (14) are fixedly connected. The fixing rod (16) is fixedly connected to a vertical block (17) on the lower surface of the vertical block (17), and a horizontal plate (18) is fixedly connected to the lower surface of the vertical block (17). The outer side wall of the horizontal plate (18) is symmetrically fixedly connected to an air extraction cavity (19). The inner side wall of the vertical groove (15) is symmetrically provided with a rotating groove (20). The rear surface of the rotating groove (20) is symmetrically fixedly connected to a rotating rod (21). The outer side wall of the rotating rod (21) is rotatably connected to a rotating ring (22). The opposite sides of the outer side walls of the two rotating rings (22) are fixedly connected to a support plate (23). The top ends of the outer side walls of the two rotating rings (22) are fixedly connected to an extrusion plate (24). The bottom end of the air extraction cavity (19) is fixedly connected to the upper surface of the vertical groove (15).

3. The outdoor portable speaker with a pull rod according to claim 2, characterized in that: The inner lower surface of the rotating groove (20) is provided with a sliding opening (26), the lower surface of the sliding opening (26) is provided with a wheel storage cavity (25), the inner sliding connection of the sliding opening (26) is provided with a sliding column (27), the upper surfaces of the two sliding columns (27) are fixedly connected with a force plate (28), the bottom end of the sliding column (27) is located in the inner sliding connection of the wheel storage cavity (25) and is provided with a support plate (29), the lower surfaces of the two support plates (29) are fixedly connected with a moving wheel (30), the outer wall of the sliding column (27) is provided with a reset spring ring (31), the top end of the reset spring ring (31) is fixedly connected to the inner upper surface of the wheel storage cavity (25), and the bottom end of the reset spring ring (31) is fixedly connected to the upper surface of the support plate (29).

4. The outdoor portable speaker with a pull rod according to claim 3, characterized in that: A wheel outlet (32) is provided on the inner lower surface of the wheel storage cavity (25), and an air extrusion groove (33) is provided on opposite sides of the two wheel outlets (32). A baffle plate (34) is slidably connected to the inside of the air extrusion groove (33). A clamping groove (35) is provided inside the two wheel outlets (32), and the opposite ends of the two baffle plates (34) are clamped and connected to the adjacent clamping groove (35). The air extrusion groove (33) is fixedly connected to the adjacent air extraction cavity (19) through the air groove.

5. The outdoor portable speaker with a pull rod according to claim 2, characterized in that: A locking groove (36) is provided on the left side of the interior of the fixing groove (14), a transverse sliding groove (37) is provided on the left side of the interior of the locking groove (36), a dislocation rod (38) is slidably connected to the interior of the transverse sliding groove (37), and an elastic airbag (47) is fixedly connected to the left side of the interior of the transverse sliding groove (37).

6. The outdoor portable speaker with a pull rod according to claim 2, characterized in that: A block groove (39) is provided on the left side of the fixing rod (16), a locking plate (40) is slidably connected to the interior of the block groove (39), a wedge block (41) is fixedly connected to the left side of the locking plate (40), and a plurality of springs (42) are fixedly connected to the interior of the block groove (39) on the right side of the locking plate (40).

7. The outdoor portable speaker with a pull rod according to claim 2, characterized in that: A torsion spring (43) is wound around the outer wall of the rotating rod (21), the front end of the outer wall of the torsion spring (43) is fixedly connected to the inner wall of the rotating ring (22), and the rear end of the torsion spring (43) is fixedly connected to the outer wall of the rotating rod (21).

8. The outdoor portable speaker with a pull rod according to claim 1, characterized in that: Function buttons (44) are symmetrically fixedly connected to the upper surface of the speaker body (1), a dust cover (45) is fixedly connected to the front surface of the speaker body (1), and a power display screen (46) is fixedly connected above the front surface of the speaker body (1).

9. The outdoor portable speaker with a pull rod according to claim 2, characterized in that: The air extraction cavity (19) includes a short plate (101), the lower surface of the short plate (101) is fixedly connected to an air extraction vertical plate (102), the outer wall of the air extraction vertical plate (102) is slidably connected to a cavity (103), the bottom end of the air extraction vertical plate (102) is fixedly connected to an air extraction horizontal plate (104), the air extraction horizontal plate (104) is slidably connected to the inner wall of the cavity (103), and an air outlet hole (105) is opened on the inner lower surface of the cavity (103).

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