Telescopic pull rod and pull rod sound box

Abstract

The invention provides a telescopic pull rod and a pull rod sound box. The telescopic pull rod comprises a fixing assembly, a telescopic assembly, a pop-up assembly and a pulling and fixing assembly. The telescopic assembly is arranged on the fixing assembly in a telescopic mode. The pop-up assembly and the pulling and fixing assembly are both arranged between the fixing assembly and the telescopic assembly, when the telescopic assembly is pressed into the fixing assembly, the pulling and fixing assembly pulls and fixes the telescopic assembly to the fixing assembly, and when the telescopic assembly is pulled out of the fixing assembly, the pop-up assembly pops the telescopic assembly out of the fixing assembly. The draw-bar sound box comprises a sound box body, rollers and the telescopic draw bar, the telescopic draw bar is the telescopic draw bar, and the rollers and the telescopic draw bar are both arranged on the sound box body. The telescopic assembly further comprises a concentric-square-shaped handle, the concentric-square-shaped handle telescopically moves on the fixing assembly along with the telescopic assembly, the top of the concentric-square-shaped handle is flush with the outer surface of the sound box body when the telescopic assembly is pressed into the fixing assembly, and the bottom face of an inner ring of the concentric-square-shaped handle is flush with the outer surface of the sound box body when the telescopic assembly is pulled out of the fixing assembly.

Description

Technical Field

[0001] This patent relates to the field of pull rod technology, and specifically to a retractable pull rod and a pull rod speaker. Background Art

[0002] Speakers, suitcases, etc. are commonly used products in daily life. In order to facilitate the movement and transportation of large speakers and suitcases, many large speakers and suitcases are provided with pull rods and rollers. In order to facilitate the use of the pull rod when moving the speakers and suitcases, and to hide the pull rod when not moving the speakers and suitcases, the pull rod is generally set to a retractable telescopic pull rod structure. However, the current telescopic pull rod is hidden inside the speakers and suitcases when retracted, which makes it inconvenient to pull out the telescopic pull rod again for use. Moreover, the telescopic pull rod is not fixed stably when retracted into the speakers and suitcases, and there is a problem that the telescopic pull rod is easy to slip out. In addition, when the pull rod is retracted into the speakers and suitcases, the telescopic pull rod will protrude from the product surface, or a large groove will be formed on the product surface, affecting the integrity and appearance of the speakers and suitcases. Summary of the invention

[0003] In order to solve the above technical problems, this patent provides a retractable pull rod and a pull rod speaker.

[0004] The telescopic pull rod includes a fixed component, a telescopic component, a pop-up component and a fixing component. The telescopic component is telescopically arranged on the fixed component; the pop-up component and the fixing component are both arranged between the fixed component and the telescopic component. When the telescopic component is pressed into the fixed component, the fixing component fixes the telescopic component on the fixed component. When the telescopic component is pulled out of the fixed component, the pop-up component pops the telescopic component out of the fixed component.

[0005] The pull rod speaker includes a speaker box, a roller and a retractable pull rod, the retractable pull rod is the aforementioned retractable pull rod, and the roller and the retractable pull rod are both arranged on the speaker box; the retractable component also includes a return handle, and the return handle moves telescopically on the fixed component with the retractable component, and when the retractable component is pressed into the fixed component, the top of the return handle is flush with the outer surface of the speaker box, and when the retractable component is pulled out of the fixed component, the bottom surface of the inner circle of the return handle is flush with the outer surface of the speaker box. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a schematic diagram of the three-dimensional structure of the retractable pull rod in the embodiment of this patent specification;

[0007] Figure 2 It is a schematic diagram of the exploded structure of the retractable pull rod in the embodiment of this patent specification;

[0008] Figure 3This is a schematic diagram of the structure of the installation of the clamping block, the driving block and the ejection spring of the retractable pull rod in the embodiment of this patent specification;

[0009] Figure 4 It is a structural diagram of the installation of the telescopic component 2 and the pop-up component 3 of the telescopic pull rod in the embodiment of this patent specification;

[0010] Figure 5 This is a schematic diagram of the structure of the hook plate of the retractable pull rod in the embodiment of this patent specification;

[0011] Figure 6 It is a schematic diagram of the structure of the mounting base of the telescopic pull rod in the embodiment of this patent specification;

[0012] Figure 7 It is a schematic diagram of the structure of the pull-bar speaker in the embodiment of this patent specification, in which the circular handle is retracted into the sound box;

[0013] Figure 8 This is a schematic diagram of the structure of the pull-rod speaker with a circular handle that pulls out the speaker box in the embodiment of this patent specification.

[0014] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The same or similar numbers correspond to the same or similar parts. The terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations on this patent. DETAILED DESCRIPTION

[0015] In order to facilitate the understanding of those skilled in the art, the following will describe multiple embodiments of this patent in combination with text and drawings. For the sake of clarity, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit this patent. In other words, in some embodiments of this patent, these practical details are not necessary. In addition, for ease of understanding, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0016] In the description of this patent, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying 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 a limitation on this patent.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this patent, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0018] In this patent, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0019] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this patent.

[0020] See also Figures 1 to 6 A telescopic pull rod comprises a fixed component 1, a telescopic component 2, a pop-up component 3 and a tightening component 4. The telescopic component 2 is telescopically arranged on the fixed component 1, so that the telescopic pull rod can be extended or shortened, and is used as a pull rod on equipment such as suitcases and pull-rod speakers. The pop-up component 3 and the tightening component 4 are both arranged between the fixed component 1 and the telescopic component 2. When the telescopic component 2 is pressed into the fixed component 1, the tightening component 4 tightens the telescopic component 2 on the fixed component 1 to prevent the telescopic component 2 from shaking or sliding out on the fixed component 1, improve the stability of the telescopic component when it is retracted into the stereo or suitcase, and prevent the telescopic component 2 from extending out of the fixed component 1 to affect the use of equipment such as suitcases and pull-rod speakers, and also ensure the appearance of equipment such as suitcases and pull-rod speakers. When the telescopic component 2 is pulled out of the fixed component 1, the pop-up component 3 pops the telescopic component 2 out of the fixed component 1, to prevent the telescopic component 2 from being difficult to take out when it is necessary to pull it out from the fixed component 1, and facilitate the use of the telescopic pull rod.

[0021] See also Figure 1 , 2and 4, the pop-up component 3 includes a guide rod 31, a telescopic spring 32, a guide block 33 and a mounting seat 35, the mounting seat 35 is arranged in the fixed component 1, the guide rod 31 is fixedly arranged on the mounting seat 35 in the fixed component 1, the guide block 33 is fixedly arranged on the telescopic component 2, and the guide block 33 is slidably arranged on the guide rod 31, and the telescopic spring 32 is arranged between the fixed component 1 and the guide block 33, so that the telescopic spring 32 is compressed when the telescopic component 2 is pressed, and when the telescopic component 2 is released, the elastic force of the telescopic spring 32 pops the pressed telescopic component 2 out of the fixed component 1. The pop-up assembly 3 further includes a slider 34, which is connected to the telescopic spring 32. The slider 34 and the guide block 33 are both interlaced on the guide rod 31, and the slider 34 is arranged between the telescopic spring 32 and the guide block 33, so that the guide block 33 is supported by the slider 34, and the telescopic movement of the slider 34 and the guide block 33 is guided by the guide rod 31, so that the telescopic movement of the telescopic assembly 2 on the fixed assembly 1 is more stable, and the direction of the telescopic assembly 2 when the telescopic assembly 2 is pressed to pop out of the fixed assembly 1 is more accurate, which can extend the service life of the telescopic spring 32 and ensure the long-term stable use of the telescopic pull rod. It is best to set two or more groups of guide rods 31, telescopic springs 32 and sliders 34, thereby further improving the stability of the telescopic movement of the telescopic assembly 2 on the fixed assembly 1. In this embodiment, a structure of setting two groups of guide rods 31, telescopic springs 32 and sliders 34 is disclosed. In practice, other numbers of guide rods 31, telescopic springs 32 and sliders 34 can also be set as needed. The mounting seat 35 is preferably configured as a cylindrical structure, and the guide rod 31, the telescopic spring 32 and the slider 34 are all arranged in the mounting seat 35 of the cylindrical structure, so that the telescopic spring 32 and the slider 34 operate in the closed mounting seat 35, preventing other external components from affecting the movement of the telescopic spring 32 and the slider 34, thereby further improving the overall stability of the pop-up assembly 3.

[0022] See also Figures 1 to 6 The fixing assembly 1 includes a fixing tube 11 and a fixing seat 12. The fixing seat 12 is provided with an opening for the telescopic assembly 2 to extend or retract. The fixing tube 11 is arranged on an end of the fixing seat 12 away from the opening of the fixing seat. The pop-up assembly 3 and the tightening assembly 4 are both arranged on the fixing seat 12. The telescopic assembly 2 is slidably arranged in the fixing tube 11.

[0023] See also Figure 2 and Figure 5The tightening assembly 4 includes a hook 41 and a hook plate 42. The hook 41 is swingably arranged on the fixed assembly 1 through a rotating shaft, and the hook plate 42 is arranged on the telescopic assembly 2. The hook plate 42 is provided with a hooking groove 421, a slide-in groove 422 and a slide-out groove 423. The hooking groove 421, the slide-in groove 422 and the slide-out groove 423 are connected channels, and the slide-in groove 422 and the slide-out groove 423 are arranged on opposite sides of the hooking groove 421. When the telescopic assembly 2 is retracted into the fixed assembly 1, the telescopic assembly 2 is pressed into the fixed assembly 1, and the hook 41 can slide from the slide-in groove 422 into the hooking groove 421 and hook in the hooking groove 421, so that the hook 41 tightens the hook plate 42, and the telescopic assembly 2 is fixed to the fixed assembly 1. When it is necessary to pull out the telescopic component 2 from the fixed component 1, the telescopic component 2 is pressed. The pressed telescopic component 2 tends to extend upward due to the elastic force of the telescopic spring 32, and the swinging hook 41 swings from the hooking groove 421 to the slide-out groove 423, so that the hook 41 can slide out of the hooking groove 421 to the slide-out groove 423, so that the hook 41 is separated from the hooking plate 42 and leaves the restraint of the hook 41 and the hooking plate 42, and the telescopic component 2 is popped out from the fixed component 1 by the elastic force of the telescopic spring 32, so that the telescopic component 2 extends out of the fixed component 1. At this time, the telescopic component 2 can be further manually pulled out of the fixed component 1.

[0024] See also Figure 2 and Figure 5 The slope of the side wall of the hooking groove 421 close to the sliding-in groove 422 is steeper than the slope of the side wall of the hooking groove 421 close to the sliding-out groove 423, and the length of the side wall of the hooking groove 421 close to the sliding-in groove 422 is longer than the length of the side wall of the hooking groove 421 close to the sliding-out groove 423, so that it is easier for the pull hook 41 to slide into the hooking groove 421 through the sliding-in groove 422 than to slide out of the hooking groove 421 through the sliding-out groove 423, so that the pull hook 41 can be prevented from easily detaching from the hooking groove 421, so that the telescopic component 2 can be stably maintained in the fixing component 1 after being retracted into the fixing component 1.

[0025] See also Figure 2 and Figure 5The hook groove 421, the slide-in groove 422 and the slide-out groove 423 are all blind grooves, and the hook plate 42 can be made of injection-molded plastic parts, and the hook groove 421, the slide-in groove 422 and the slide-out groove 423 are all formed at one time during injection molding. The pull hook 41 is an L-shaped structure, and can be a stamped metal part. For example, a hook part and a circular mounting part of an L-shaped structure are formed at both ends of the metal wire by stamping a metal wire, and the circular mounting part is mounted on the mounting shaft set on the mounting seat 35 through the circular mounting part, and the hook part of the L-shaped structure cooperates with the hook groove 421, the slide-in groove 422 and the slide-out groove 423. The hook groove 421, the slide-in groove 422 and the slide-out groove 423 are blind grooves, so that it is convenient to make the hook groove 421, the slide-in groove 422 and the slide-out groove 423 on the hook plate 42. In order to prevent the hooking part of the L-shaped structure from escaping from the hooking groove 421, the sliding groove 422 and the sliding out groove 423, the pull hook 41 is pressed onto the hooking plate 42 by the compression spring 43, thereby the hooking part of the L-shaped structure is tightly pressed onto the hooking plate 42 by the compression spring 43, which can prevent the hooking part of the L-shaped structure from escaping from the hooking groove 421, the sliding groove 422 and the sliding out groove 423, thereby improving the stability and reliability of the use of the telescopic pull rod.

[0026] See also Figures 1 to 3 6, the telescopic assembly 2 comprises a telescopic rod 21, a block 22, a slot 23 and a driving block 24, the block 22 is arranged on the telescopic rod 21, the slot 23 is arranged on the fixed seat 12 of the fixed assembly 1, the driving block 24 drives the block 22 to be inserted into the slot 23 or to leave the slot 23, after the telescopic assembly 2 is pulled out of the fixed assembly 1 to the position, the driving block 24 drives the block 22 to be inserted into the slot 23, so that the telescopic assembly 2 is fixed on the fixed assembly 1, and the telescopic rod remains in the extended state; when the telescopic assembly 2 needs to be retracted into the fixed assembly 1, the driving block 24 drives the block 22 to leave the slot 23, so that the telescopic assembly 2 can be retracted into the fixed assembly 1. An oblique groove is arranged on the block 22, and the driving block 24 is inserted into the oblique groove on the block 22, so that the vertical movement of the driving block 24 can drive the block 22 to move horizontally, thereby driving the driving block 22 to be inserted into the slot 23 or driving the driving block 22 to be separated from the slot 23.

[0027] See also Figures 1 to 3 and 6, the block 22 is elastically arranged on the telescopic rod 21 by means of a push-out spring 25, so that when the block 22 is inserted into the slot 23, the block 22 is pressed into the slot 23 by the elastic force of the push-out spring 25, thereby preventing the block 22 from being loosened from the slot 23, so that the telescopic component 2 can be stably extended outside the fixed component 1, thereby improving the stability of the telescopic pull rod.

[0028] See also Figure 2The telescopic component 2 also includes a button 26 and a pressure rod 27. The button 26 is elastically arranged on the telescopic rod 21 by a spring, and the pressure rod 27 is connected between the button 26 and the driving block 24, so that pressing the button can drive the pressure rod 27 to move, and the movement of the pressure rod 27 drives the driving block 24 to move, and then the driving block 24 drives the driving card block 22 to be inserted into the card slot 23 or drives the driving card block 22 to be separated from the card slot 23. The driving card block 22 is inserted into the card slot 23 so that the telescopic component 2 remains in a state of being pulled out of the fixed component 1, and the driving card block 22 is separated from the card slot 23 so that the telescopic component 2 can be retracted into the fixed component 1.

[0029] See also Figures 1 to 6 The working process of the telescopic pull rod is as follows: when it is necessary to pull the telescopic component 2 out of the fixed component 1, first press the telescopic component 2 lightly, and the telescopic component 2 tends to extend upward due to the elastic force of the telescopic spring 32, and the swinging hook 41 swings into the slide-out groove 423, so that the hook 41 can slide out of the hooking groove 421 to the slide-out groove 423, so that the hook 41 is separated from the hooking plate 42, leaving the restraint of the hook 41 and the hooking plate 42, and the telescopic component 2 is popped out from the fixed component 1 by the elastic force of the telescopic spring 32, so that the telescopic component 2 extends out of the fixed component 1; then further manually pull the telescopic component 2, and after it is pulled into place, the card block 22 is inserted into the card slot 23 so that the telescopic component 2 remains in the state of being pulled out of the fixed component 1. When the telescopic component 2 needs to be retracted into the fixed component 1, the button 26 is pressed, and the button 26 drives the pressure rod 27 to move. The movement of the pressure rod 27 drives the driving block 24 to move, and then the driving block 24 drives the driving block 22 to disengage from the card slot 23, so that the telescopic component 2 can be retracted into the fixed component 1.

[0030] See also Figures 1 to 8 This embodiment also discloses a pull rod speaker, on which the aforementioned retractable pull rod is arranged. The pull rod speaker adopts the aforementioned retractable pull rod and has the beneficial effects of the aforementioned retractable pull rod, which will not be described in detail here.

[0031] See also Figures 1 to 8 The pull rod speaker comprises a speaker box 5, a roller 6 and a retractable pull rod, the retractable pull rod is the aforementioned retractable pull rod, the roller 6 and the retractable pull rod are both arranged on the speaker box 5, and the roller 6 is arranged at the bottom of the speaker box 5. The retractable pull rod is arranged in the speaker box 5, and the retractable assembly 2 can be extended from the top of the speaker box 5.

[0032] See also Figures 1 to 8The telescopic assembly 2 also includes a round handle 28, which is arranged on the telescopic rod 21 of the telescopic assembly 2, and moves with the telescopic assembly 2 on the fixed assembly 1. When the telescopic assembly 2 is pressed into the fixed assembly 1, the top of the round handle 28 is flush with the outer surface of the audio box 5, and when the telescopic assembly 2 is pulled out of the fixed assembly 1, the inner circle bottom surface of the round handle 28 is flush with the outer surface of the audio box 5. By setting the round handle 28, and when the telescopic assembly 2 is pressed into the fixed assembly 1, the top of the round handle 28 is flush with the outer surface of the audio box 5, so that when the pull rod is retracted into the audio box 5, the telescopic pull rod will not protrude from the product surface, and will not produce a large groove on the surface of the audio box, thereby ensuring the integrity and beauty of the appearance of the pull rod audio. Moreover, when the telescopic assembly 2 is pulled out of the fixed assembly 1, the inner circle bottom surface of the round handle 28 is flush with the outer surface of the audio box 5, so that when the pull rod is pulled out of the audio box 5, the surface of the audio box is a flat structure, which can also ensure the integrity and beauty of the appearance of the pull rod audio.

[0033] Obviously, the above embodiments of this patent are only examples for clearly explaining this patent, and are not intended to limit the implementation methods of this patent. For ordinary technicians in the relevant field, 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 implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this patent should be included in the scope of protection of the claims of this patent.

Claims

1. A retractable pull rod, characterized in that: It includes a fixed component, a telescopic component, a pop-up component and a tightening component. The telescopic component can be telescopically arranged on the fixed component; the pop-up component and the tightening component are both arranged between the fixed component and the telescopic component. When the telescopic component is pressed into the fixed component, the tightening component tightens the telescopic component on the fixed component. When the telescopic component is pulled out of the fixed component, the pop-up component pops the telescopic component out of the fixed component.

2. The telescopic pull rod according to claim 1, characterized in that: The pop-up assembly includes a guide rod, a telescopic spring and a guide block, the guide rod is fixedly arranged on the fixed assembly, the guide block is fixedly arranged on the telescopic assembly, the guide block is slidably arranged on the guide rod, and the telescopic spring is arranged between the fixed assembly and the guide block.

3. The telescopic pull rod according to claim 2, characterized in that: The pop-up assembly further comprises a slider, wherein the slider and the guide block are both interlaced and arranged on the guide rod, and the slider is arranged between the telescopic spring and the guide block.

4. The telescopic pull rod according to claim 1, characterized in that: The tightening component includes a hook and a hook plate, the hook is swingably arranged on the fixed component, the hook plate is arranged on the telescopic component, and the hook plate is provided with a hook groove, a slide-in groove and a slide-out groove. When the telescopic component is pressed into the fixed component 1, the hook can slide from the slide-in groove into the hook groove, and when the telescopic component is pulled out of the fixed component 1, the hook can slide out from the hook groove to the slide-out groove.

5. The telescopic pull rod according to claim 4, characterized in that: The sliding-in groove and the sliding-out groove are arranged on opposite sides of the hooking groove, the slope of the side wall of the hooking groove close to the sliding-in groove is steeper than the slope of the side wall of the hooking groove close to the sliding-out groove, and the length of the side wall of the hooking groove close to the sliding-in groove is longer than the length of the side wall of the hooking groove close to the sliding-out groove.

6. The telescopic pull rod according to claim 5, characterized in that: The hooking groove, the sliding-in groove and the sliding-out groove are all blind grooves, the pulling hook is an L-shaped structure, and the pulling hook is pressed on the hooking plate by a pressing spring.

7. The telescopic pull rod according to any one of claims 1 to 6, characterized in that: The telescopic assembly comprises a telescopic rod, a clamping block, a clamping slot and a driving block. The clamping block is arranged on the telescopic rod, the clamping slot is arranged on the fixed assembly, and the driving block drives the clamping block to be clamped into or leave the clamping slot.

8. The telescopic pull rod according to claim 7, characterized in that: The clamping block is elastically arranged on the telescopic rod through a pushing spring; the telescopic assembly also includes a button and a pressure rod, the button is elastically arranged on the telescopic rod, and the pressure rod is connected between the button and the driving block.

9. The telescopic pull rod according to claim 1, characterized in that: The fixing assembly comprises a fixing tube and a fixing seat, wherein the fixing seat is arranged in the fixing tube, the pop-up assembly and the tightening assembly are both arranged on the fixing seat, and the telescopic assembly is slidably arranged in the fixing tube.

10. A rod speaker comprising a retractable rod according to any one of claims 1 to 9, characterized in that: It includes an audio box, a roller and a retractable rod, the retractable rod is any one of claims 1 to 9, and the roller and the retractable rod are both arranged on the audio box; the telescopic component also includes a circular handle, the circular handle telescopically moves on the fixed component with the telescopic component, the top of the circular handle is flush with the outer surface of the audio box when the telescopic component is pressed into the fixed component, and the bottom surface of the inner circle of the circular handle is flush with the outer surface of the audio box when the telescopic component is pulled out of the fixed component.

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