Headrest height adjusting device of headrest magnetic stimulation therapeutic instrument

Abstract

This invention discloses a headrest height adjustment device for a magnetic stimulation therapy device with a headrest, comprising a headrest assembly and a fixing assembly located at the rear of the headrest assembly. The headrest assembly includes a headrest with a groove on its back and an adjustment post disposed within the groove. The adjustment post has a locking post that moves towards the fixing assembly when pressed. The fixing assembly includes a fixing shaft with a guide hole that surrounds the adjustment post and the locking post, and the locking post slides within the guide hole. A locking block that engages with the locking post is located within the guide hole. This headrest height adjustment device for a magnetic stimulation therapy device with a headrest, because the locking action and the locking state are directly related forced mechanical actions, eliminates the need for visual observation of internal alignment and significantly reduces reliance on the operator's tactile or auditory judgment, thus greatly improving the error tolerance of the locking operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a headrest height adjustment device for a magnetic stimulation therapy device with a headrest. Background Technology

[0002] In existing magnetic stimulation therapy devices, the headrest height adjustment mechanism typically employs a locking method where an elastic clip engages with a pre-set locking hole on a sliding post or similar adjustment rod. This structure relies on the user pressing or releasing the elastic clip during adjustment to ensure it precisely falls into the target locking hole for fixation. However, due to the obstruction of the device's internal structure, the operator cannot directly observe the real-time relative position between the elastic clip and the locking hole—this "invisibility" makes it difficult to determine whether the clip is aligned with the hole when approaching the target height.

[0003] This lack of visual feedback forces operators to make repeated, minute height adjustments, relying on touch or sound, such as a "click," to determine if locking has been successful. This process is not only inefficient and provides a poor user experience, but it is also highly susceptible to failure or incomplete engagement due to tactile inaccuracies or manufacturing errors in the locking mechanism / hole. This significantly reduces the margin for error in the adjustment operation, making locking to the target height difficult and unreliable. Utility Model Content

[0004] This invention proposes a headrest height adjustment device for a magnetic stimulation therapy device with a headrest, which solves the problem of low operating efficiency caused by the inability to visually determine the adjustment position of the headrest height adjustment device in the prior art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A headrest height adjustment device for a magnetic stimulation therapy device with a headrest includes a headrest assembly and a fixing assembly disposed on the rear side of the headrest assembly; the headrest assembly includes a headrest with a groove on the back and an adjustment post disposed therein in the groove, the adjustment post having a locking post that moves toward the fixing assembly by pressing; the fixing assembly includes a fixing shaft with a guide hole in it, the guide hole surrounding the adjustment post and the locking post, and the locking post sliding in the guide hole; the guide hole has a locking block that locks into the locking post.

[0007] Furthermore, the locking pin is a rack and the locking block is a toothed block, and the rack and the toothed block mesh with each other.

[0008] Furthermore, the adjusting column is provided with a movable groove for locking the column to move backward.

[0009] Furthermore, the upper and lower sides of the adjusting column corresponding to the movable groove are respectively provided with spring plates that can be pressed to guide the locking column to move backward.

[0010] Furthermore, the fixing assembly also includes a fixing seat on the treatment device seat, and fixing arms are provided on both sides of the fixing seat. The two ends of the locking post are respectively fixed to the two fixing arms on both sides.

[0011] Furthermore, the back of the fixed base is also provided with a semi-open card slot, in which a magnetic stimulator is attached.

[0012] The beneficial effects of the technical solution provided in this application are as follows:

[0013] 1. The headrest height adjustment device of this magnetic stimulation therapy device with a headrest features a locking post on the adjusting post of the headrest assembly, which can be pressed and displaced along its axial direction. A locking block, which mates with the adjusting post, is also located within the guide hole of the fixed shaft of the fixed assembly. The guide hole accommodates both the adjusting post and the locking post, providing sliding constraint for the locking post. When the height needs to be locked, the user simply presses the locking post, driving it towards the fixed assembly until it unlocks from the locking block. At this point, the headrest can be pulled up or down. To lock, simply release the pressure; the pressure is released, and the locking post and locking block are locked.

[0014] 2. The headrest height adjustment device of this magnetic stimulation therapy device with a headrest completely eliminates the cumbersome steps of aligning the locking holes. Users only need to perform a single, clear pressing action at any target height position to achieve reliable locking. The operation is intuitive, simple, and instantaneous, greatly improving adjustment efficiency. Secondly, since the locking action and the locked state are directly related forced mechanical actions, there is no need to rely on visual observation of the internal alignment, which significantly reduces the reliance on the operator's feel or auditory judgment. This greatly improves the error tolerance of the locking operation. Even within the allowable manufacturing tolerances, it can ensure that each press achieves effective and stable locking, effectively avoiding the locking failure problem caused by inaccurate fine-tuning in existing technologies, and significantly improving user experience and device reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the headrest height adjustment device of the magnetic stimulation therapy device with headrest of this utility model;

[0017] Figure 2 This is an exploded view of the headrest height adjustment device of the magnetic stimulation therapy device with headrest of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the headrest height adjustment device of the magnetic stimulation therapy device with headrest of this utility model.

[0019] In the diagram: 10 Headrest assembly, 11 Headrest, 12 Adjustment column, 13 Spring plate, 14 Movable groove, 15 Locking column; 20 Fixing assembly, 21 Fixing base, 22 Fixing arm, 23 Fixing shaft, 24 Guide hole, 25 Locking block, 26 Card slot; 30 Magnetic stimulator. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figure 1-3 A headrest height adjustment device for a magnetic stimulation therapy device with a headrest includes a headrest assembly 10 and a fixing assembly 20 located at the rear of the headrest assembly 10. The headrest assembly 10 supports the user's head and serves as the actuator for height adjustment. It directly contacts the user's head and contains key moving parts for subsequent height changes. The fixing assembly 20 provides a stable support reference and guiding constraint. It is typically fixed to the main structure of the therapy device and is relatively stationary. Positioning it at the rear of the headrest assembly 10 clarifies its relative position in space and ensures that the adjustment action occurs in a reasonable area behind the user's head.

[0022] The headrest assembly 10 includes a headrest 11 with a groove on its back and an adjusting post 12 disposed within the groove. The adjusting post 12 has a locking post 15 that moves towards the fixing assembly 20 when pressed. The groove in the headrest 11 primarily provides a mounting base and accommodating space for the adjusting post 12, ensuring its secure integration with the headrest 11. The adjusting post 12 serves as a transmission and support structure for height adjustment of the headrest assembly 10; its axial movement directly drives the headrest 11 to rise and fall. The locking post 15 serves as a direct input component for user operation and an actuator for height locking. Pressing it causes axial displacement, triggering an unlocking action.

[0023] The fixing component 20 includes a fixing shaft 23 with a guide hole 24. The guide hole 24 surrounds the adjusting post 12 and the locking post 15, and the locking post 15 slides within the guide hole 24. A locking block 25, which engages with the locking post 15, is provided within the guide hole 24. The fixing shaft 23 is the core support structure of the fixing component 20. The core function of the guide hole 24 is to provide a precise axial guide channel for the adjusting post 12, ensuring its linear movement; to provide sliding constraints and a movement path for the locking post 15; and to constrain the interaction space between the locking post 15 and the locking block 25 within its interior. The locking block 25, as a static locking structure fixed within the guide hole 24, achieves reliable mechanical locking of the headrest component 10 relative to the fixing component 20 at a specific position through interaction with the movable locking post 15 (including but not limited to engagement, meshing, or frictional contact).

[0024] In the non-pressed state, the locking pin 15 is at the front end of its axial travel. At this time, the locking pin 15 and the locking block 25 fixed in the guide hole 24 form a stable interlocking state. This locking rigidity prevents any axial movement of the locking pin 15 and the adjusting pin 12 connected to it within the guide hole 24, thereby firmly locking the headrest assembly 10 at the current height position. When the user needs to adjust the headrest height, the locking pin 15 must be pressed. The pressing action drives the locking pin 15 to move axially (rearward) towards the fixing assembly 20 within the guide hole 24. As the locking pin 15 moves backward, its structure disengages from the locking state with the locking block 25. Once fully disengaged, the adjusting pin 12 and the locking pin 15 can slide freely axially within the guide hole 24. At this time, the user can move the headrest 11 up and down, causing the adjusting pin 12 and the locking pin 15 to slide together to the new target height position. After the user moves the headrest 11 to the target height, they release the pressure on the locking pin 15, at which point the locking pin 15 returns to its original position. During the return process, when the locking pin 15 slides until its structure is re-aligned with the locking block 25 fixed in the guide hole 24, the locking pin 15 and the locking block 25 re-engage, thereby automatically and reliably locking the headrest assembly 10 at the new height position. Throughout the adjustment process, the guide hole 24 ensures the linearity and smoothness of the movement of the adjusting pin 12 and the locking pin 15.

[0025] In some embodiments, the locking pin 15 is a rack, and the locking block 25 is a toothed block, with the rack and the toothed block meshing with each other. The rack-shaped locking pin 15, with its continuous toothed structure, provides multiple discrete, highly precise locking positions by meshing with the toothed block 25 through specific tooth grooves in the default non-pressed state, achieving a height-locking mechanism. Its toothed design facilitates axial sliding after pressing. The toothed locking block 25 serves as a rigid locking point fixed to the inner wall of the guide hole 24, having at least one toothed protrusion. The core function of this meshing structure is to achieve a forced, inelastic, discrete-position rigid mechanical locking. In the default state, a tooth groove of the rack 15 meshes with the tooth of the toothed block 25, i.e., the toothed block protrusion engages with the rack groove, generating a strong shear force that firmly prevents any axial sliding of the locking pin 15 and the connected adjusting pin 12 within the guide hole 24, thereby securely locking the headrest assembly 10 in the selected height position. The meshing mechanism provides a clear sense of locking stability and position.

[0026] In some embodiments, the adjusting column 12 has a movable groove 14 for the rearward displacement of the locking column 15, providing the locking column 15 with physical space and a movement channel for axial displacement in a specific direction within the adjusting column 12. When the user presses the locking column 15 to unlock, the locking column 15 needs to overcome the reset force and move rearward relative to the adjusting column 12. The movable groove 14 precisely defines the range of rearward movement of the locking column 15.

[0027] In some embodiments, the adjusting post 12 is provided with spring plates 13 on the upper and lower sides of the movable groove 14, which can be pressed to guide the locking post 15 to move backward. In the non-pressed state, the upper and lower spring plates 13 use their own elastic restoring force to hold the locking post 15 in the front end position within the movable groove 14, i.e., the default engaged locking position, and provide the main driving force for the locking post 15 to return to its forward position. When the user presses the locking post 15 or the two spring plates 13, the spring plates 13 are forced to elastically deform, causing the locking post 15 to move backward and unlock.

[0028] In some embodiments, the fixing assembly 20 further includes a fixing seat 21 on the therapeutic chair, serving as the mounting interface and load-bearing base between the entire height adjustment device and the magnetic stimulation therapeutic chair. It is directly or indirectly fixed to a predetermined structure of the chair, providing a stable support reference for the entire fixing assembly 20 and the associated headrest assembly 10. Fixing arms 22 are also provided on both sides of the fixing seat 21, and the two ends of the locking post 15 are respectively fixed to the two fixing arms 22. The fixing arms 22 serve as a support frame for the fixing shaft 23 and the locking block 25. The two fixing arms 22 extend upwards from the fixing seat 21, forming a rigid support structure. More importantly, they provide fixing fulcrums at both ends for the locking post 15.

[0029] In some embodiments, the back of the mounting base 21 is further provided with a semi-open retaining bracket 26, in which the magnetic stimulator 30 is engaged. The retaining bracket 26 is typically U-shaped or similar, precisely surrounding and supporting the corresponding part of the magnetic stimulator 30 through its side walls, ensuring its correct installation position and posture on the device. The semi-open design allows the magnetic stimulator 30 to be easily inserted or removed from above or behind, simplifying the maintenance or replacement process.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A headrest height adjustment device of a headrest magnetic stimulation therapeutic instrument, characterized in that, Includes a headrest assembly (10) and a fixing assembly (20) located on the rear side of the headrest assembly (10); The headrest assembly (10) includes a headrest (11) with a groove on the back and an adjustment post (12) disposed therein in the groove, the adjustment post (12) having a locking post (15) that is displaced toward the fixing assembly (20) by pressing. The fixing component (20) includes a fixing shaft (23), in which a guide hole (24) is provided. The guide hole (24) surrounds the outside of the adjusting column (12) and the locking column (15), and the locking column (15) slides in the guide hole (24). The guide hole (24) is provided with a locking block (25) that locks into the locking column (15).

2. The headrest height adjustment device of the headrest magnetic stimulation therapeutic instrument according to claim 1, characterized in that, The locking pin (15) is a rack and the locking block (25) is a toothed block, and the rack and the toothed block mesh with each other.

3. The headrest height adjustment device of the headrest magnetic stimulation therapeutic instrument according to claim 1, characterized in that, The adjusting column (12) has an active groove (14) for the locking column (15) to move backward.

4. The headrest height adjustment device of the headrest magnetic stimulation therapeutic instrument according to claim 3, characterized in that, The adjusting column (12) is provided with spring plates (13) on the upper and lower sides of the movable groove (14) respectively, which can be pressed to guide the locking column (15) to move backward.

5. The headrest height adjustment device of the headrest magnetic stimulation therapeutic instrument according to claim 1, characterized in that, The fixing component (20) also includes a fixing seat (21) on the fixing treatment device seat, and fixing arms (22) are provided on both sides of the fixing seat (21). The two ends of the locking post (15) are fixed to the fixing arms (22) on both sides respectively.

6. The headrest height adjustment device of the headrest magnetic stimulation therapeutic instrument according to claim 5, characterized in that, The back of the fixed base (21) is also provided with a semi-open card holder (26), in which a magnetic stimulator (30) is attached.

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