Head electrode locking device

Abstract

The utility model discloses head electrode locking device relates to fumigation physiotherapy technical field. The utility model discloses, including head fixed base, the mounting recess of head fixed base top is provided with support, the support is rotatory and inserts the shaft, and the surface fixed sleeve of shaft is provided with sector ratchet, the top surface of sector ratchet is fixed and installed with the connecting frame through screw, and the head electrode is fixed on the end of connecting frame, the inside of support is provided with elastic operating mechanism. The utility model discloses, and the locking wedge of elastic operating mechanism that the support inside sets is fixed and installed on the movable part, after the head electrode is adjusted to the angle of optimum adhesion with the head of patient, and the locking wedge is inserted into the tooth groove of sector ratchet under the pre -tightening force effect of elastic operating mechanism, and the sector ratchet is prevented from reversing by mechanical interlock, thereby firmly locking the connecting frame and head electrode in the current angle, prevent its displacement in the physiotherapy process because of the patient shaking.

Description

Technical Field

[0001] This utility model relates to the field of fumigation therapy technology, specifically to a head electrode locking device. Background Technology

[0002] In the field of modern healthcare, fumigation therapy beds combined with electrode therapy have become a common treatment method, widely used in traditional Chinese medicine therapy, rehabilitation therapy, and other scenarios. Existing fumigation therapy bed head electrode contact devices, as described in patents 202210148450.X and 202410265295.9, achieve electrode contact with different patients' heads through a hinged design of the mounting frame. Although existing electrode contact devices can adapt to different patients' head shapes to a certain extent, they lack an effective locking mechanism and cannot ensure the stability of the electrodes during physiotherapy. When patients shake or move their heads involuntarily during physiotherapy, the electrodes are prone to move, resulting in poor contact between the electrodes and the head, which affects the physiotherapy effect and the safety of the treatment.

[0003] Therefore, a head electrode locking device is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a head electrode locking device in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: The head electrode locking device includes a head fixing seat. A bracket is provided in the mounting groove at the top of the head fixing seat. A rotating shaft is rotatably inserted into the bracket, and a fan-shaped ratchet is fixedly sleeved on the surface of the rotating shaft. A connecting frame is fixedly installed on the top surface of the fan-shaped ratchet by screws. The head electrode is fixed on the end of the connecting frame. An elastic operating mechanism is provided inside the bracket. A locking wedge is fixedly installed on the movable part of the elastic operating mechanism. The locking wedge is inserted into the fan-shaped ratchet to lock the head electrode after adjustment.

[0006] Furthermore, when the locking wedge is inserted into the fan-shaped ratchet, its connecting frame can be rotated downwards in one direction via the rotating shaft. The locking wedge is driven downwards by the elastic operating mechanism and separated from the fan-shaped ratchet, thereby unlocking the fan-shaped ratchet and the connecting frame from one-way locking.

[0007] Furthermore, the bracket includes a threaded base fixedly installed on the bottom surface of the mounting groove, the top end of the threaded base is threadedly connected to an internally threaded sleeve rod, the end of the internally threaded sleeve rod is fixedly installed with a U-shaped seat, and the rotating shaft rotates on both sides of the U-shaped seat.

[0008] Furthermore, the elastic operating mechanism includes a sliding seat slidably installed inside the internal threaded sleeve, a locking wedge block fixedly installed on the sliding seat, a pull rod fixedly connected to the surface of the sliding seat, and a spring fixedly connected between the sliding seat and the threaded base, with the spring located inside the internal threaded sleeve.

[0009] Furthermore, both sides of the threaded base are provided with through grooves, and its sliding seat is slidably disposed inside the internal threaded sleeve and in the through grooves on its surface.

[0010] Furthermore, the locking wedge is inserted into the tooth groove of the fan-shaped ratchet, and the locking wedge is movably inserted into the threaded base.

[0011] The beneficial effects of this utility model are as follows: The rotating shaft is inserted into the bracket, and the fan-shaped ratchet fixedly fitted on its surface can rotate together with the rotating shaft. The head electrode fixed at the end of the connecting frame can be adjusted for pitch angle. The elastic operating mechanism inside the bracket has a locking wedge fixedly installed on its movable part. When the head electrode is adjusted to the angle that best fits the patient's head, the locking wedge automatically inserts into the tooth groove of the fan-shaped ratchet under the pre-tightening force of the elastic operating mechanism. The mechanical interlock prevents the fan-shaped ratchet from reversing, thereby firmly locking the connecting frame and the head electrode at the current angle and preventing them from shifting due to the patient's shaking during physiotherapy. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial schematic diagram of the present invention; Figure 3 This is a utility model Figure 2 A sectional view; Figure 4 This is an exploded view of this utility model; Figure 5 This is a utility model Figure 3 Enlarged view of part A; Reference numerals: 1. Head fixing seat; 11. Mounting groove; 2. Bracket; 201. Threaded base; 202. Internal threaded sleeve; 203. U-shaped seat; 3. Rotating shaft; 4. Fan-shaped ratchet; 5. Connecting frame; 6. Head electrode; 7. Elastic operating mechanism; 701. Sliding seat; 702. Pull rod; 703. Spring; 8. Locking wedge. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0016] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] like Figures 1 to 5 As shown, the head electrode locking device includes a head fixing seat 1, a bracket 2 is provided in the mounting groove 11 at the top of the head fixing seat 1, and a rotating shaft 3 is rotatably inserted into the bracket 2. like Figure 2 , Figure 3 and Figure 4 As shown, specifically, the bracket 2 includes a threaded base 201 fixedly installed on the bottom surface of the mounting groove 11. The top end of the threaded base 201 is threadedly connected to an internal threaded sleeve 202. The end of the internal threaded sleeve 202 is fixedly installed with a U-shaped seat 203. The rotating shaft 3 rotates on both sides of the U-shaped seat 203.

[0018] More specifically, the internal threaded sleeve 202 is connected to the top of the threaded base 201 by a threaded connection, which enables detachable connection and fixation, facilitating maintenance and disassembly operations.

[0019] A fan-shaped ratchet 4 is fixedly sleeved on the surface of the rotating shaft 3. A connecting frame 5 is fixedly installed on the top surface of the fan-shaped ratchet 4 by screws. The head electrode 6 is fixed on the end of the connecting frame 5. An elastic operating mechanism 7 is provided inside the bracket 2. A locking wedge 8 is fixedly installed on the movable part of the elastic operating mechanism 7. The locking wedge 8 is inserted into the fan-shaped ratchet 4 to lock the head electrode 6 after adjustment. like Figure 3 , Figure 4 and Figure 5 As shown, specifically, the elastic operating mechanism 7 includes a sliding seat 701 slidably installed in the internal threaded sleeve 202, a locking wedge 8 fixedly installed on the sliding seat 701, a pull rod 702 fixedly connected to the surface of the sliding seat 701, and a spring 703 fixedly connected between the sliding seat 701 and the threaded base 201, with the spring 703 located inside the internal threaded sleeve 202.

[0020] More specifically, the sliding seat 701 is slidably installed in the internal cavity of the internal threaded sleeve 202, allowing for a small range of up and down movement. The pull rod 702 is fixedly connected to the surface of the sliding seat 701. By pressing down the pull rod 702, the operator can move the entire sliding seat 701 and the locking wedge 8 downwards, compressing the spring 703 to unlock. Conversely, the elastic force of the spring 703 provides a continuous upward elastic preload to the sliding seat 701 and the locking wedge 8, ensuring that the locking wedge 8 can automatically maintain engagement and locking with the sector ratchet 4 in the non-operating state.

[0021] In some practical applications, the threaded base 201 has through grooves on both sides, and its sliding seat 701 is slidably disposed inside the internal threaded sleeve 202 and in the through grooves on its surface.

[0022] More specifically, vertical through slots are provided on both sides of the internal threaded sleeve 202, and the sliding seat 701 has connecting parts on both sides that slide in the through slots of the internal threaded sleeve 202, allowing the sliding seat 701 to move vertically up and down along the through slots, ensuring that the locking wedge 8 fixed on it can always be aligned with the teeth of the fan-shaped ratchet 4, thus ensuring the reliability of the locking function.

[0023] In some practical applications, when the locking wedge 8 is inserted into the sector ratchet 4, its connecting frame 5 can be rotated downwards in one direction via the rotating shaft 3. The locking wedge 8 is driven downwards by the elastic operating mechanism 7, and the locking wedge 8 is separated from the sector ratchet 4 to unlock the sector ratchet 4 and the connecting frame 5 for one-way locking.

[0024] More specifically, when the angle of the head electrode 6 needs to be readjusted, the operator must manually overcome the elastic operating mechanism 7 to move the locking wedge 8 downward, so that it separates from the teeth of the fan-shaped ratchet 4 and releases the lock.

[0025] In practical applications, the locking wedge 8 is inserted into the tooth groove of the sector ratchet 4, and the locking wedge 8 is movably inserted into the threaded base 201.

[0026] More specifically, the head of the locking wedge 8 is machined into a wedge-shaped tooth that matches the tooth groove of the fan-shaped ratchet 4. Under the thrust of the spring 703, the teeth of the locking wedge 8 are tightly inserted into the tooth groove of the fan-shaped ratchet 4, forming a mechanical interlock and reliably preventing it from reversing.

[0027] In summary: The rotating shaft 3 is rotatably inserted into the bracket 2. The fan-shaped ratchet 4 fixedly sleeved on its surface can rotate together with the rotating shaft 3. The head electrode 6 fixed at the end of the connecting frame 5 can be adjusted for pitch angle. The elastic operating mechanism 7 inside the bracket 2 has a locking wedge 8 fixedly installed on its movable part. When the head electrode 6 is adjusted to the angle that best fits the patient's head, the locking wedge 8 automatically inserts into the tooth groove of the fan-shaped ratchet 4 under the pre-tightening force of the elastic operating mechanism 7. The mechanical interlock prevents the fan-shaped ratchet 4 from reversing, thereby firmly locking the connecting frame 5 and the head electrode 6 at the current angle and preventing them from shifting due to the patient's shaking during physiotherapy.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A head electrode locking device, characterized in that, The device includes a head fixing seat (1), a bracket (2) is provided in the mounting groove (11) at the top of the head fixing seat (1), a rotating shaft (3) is rotatably inserted on the bracket (2), and a fan-shaped ratchet (4) is fixedly sleeved on the surface of the rotating shaft (3). A connecting frame (5) is fixedly installed on the top surface of the fan-shaped ratchet (4) by screws. The head electrode (6) is fixed on the end of the connecting frame (5). An elastic operating mechanism (7) is provided inside the bracket (2). When the movable part of the elastic operating mechanism (7) is fixedly installed with a locking wedge (8), the locking wedge (8) is inserted into the fan-shaped ratchet (4) to lock the head electrode (6) after adjustment.

2. The head electrode locking device according to claim 1, characterized in that, When the locking wedge (8) is inserted into the fan-shaped ratchet (4), its connecting frame (5) can be rotated downwards in one direction via the rotating shaft (3). The locking wedge (8) is driven downwards by the elastic operating mechanism (7) and separated from the fan-shaped ratchet (4) to unlock the fan-shaped ratchet (4) and the connecting frame (5) in one direction.

3. The head electrode locking device according to claim 1, characterized in that, The bracket (2) includes a threaded base (201) fixedly installed on the bottom surface of the mounting groove (11). The top end of the threaded base (201) is threadedly connected to an internal threaded sleeve (202). The end of the internal threaded sleeve (202) is fixedly installed with a U-shaped seat (203). The rotating shaft (3) rotates on both sides of the U-shaped seat (203).

4. The head electrode locking device according to claim 3, characterized in that, The elastic operating mechanism (7) includes a sliding seat (701) slidably installed in the internal threaded sleeve (202), a locking wedge (8) fixedly installed on the sliding seat (701), a pull rod (702) fixedly connected to the surface of the sliding seat (701), and a spring (703) fixedly connected between the sliding seat (701) and the threaded base (201), and the spring (703) is located inside the internal threaded sleeve (202).

5. The head electrode locking device according to claim 4, characterized in that, Both sides of the threaded base (201) are provided with through grooves, and its sliding seat (701) is slidably disposed inside the internal threaded sleeve (202) and in the through groove on its surface.

6. The head electrode locking device according to claim 3, characterized in that, The locking wedge (8) is inserted into the tooth groove of the fan-shaped ratchet (4), and the locking wedge (8) is movably inserted into the threaded base (201).

Images