Telescopic massage device

Abstract

Telescopic massage device with air cushion, comprising a housing (1), a battery (5) arranged inside the housing (1), and an inflation assembly (2) and telescopic assembly (3) each arranged inside the housing (1); characterized in that: - the telescopic assembly (3) comprises a telescopic motor (301) fixedly arranged inside the housing (1) and a telescopic support (302) arranged above the telescopic motor (301); - a drive shaft (304) is fixedly connected to the output end of the telescopic motor (301), wherein a cam-actuated sliding block (303) is rotatably connected to an end of the drive shaft (304) facing away from the telescopic motor (301), and wherein the cam-actuated sliding block (303) slidably interacts with an inner base surface of the telescopic support (302);- a guide rod (305) is furthermore rigidly connected to the upper side of the telescopic motor (301), wherein the guide rod (305) extends in a vertical direction and passes through the interior of the telescopic support (302), and wherein the telescopic support (302) is slidably connected to the guide rod (305); - a mounting seat (306) is rigidly connected to the upper side of the telescopic support (302), wherein the inflation assembly (2) comprises a silicone air cushion (201) rigidly and sealingly arranged on the upper side of the mounting seat (306) and an internal vibration motor (206) rigidly arranged on an upper region of the silicone air cushion (201).

Description

Technical field The utility model relates to the technical field of massage devices, in particular a telescopic massage device with air cushions. State of the art With the acceleration of modern life and the increase in work pressure, muscle fatigue and pain have become common health problems, leading to the widespread use of various handheld massage devices in everyday life. Conventional massage devices primarily generate high-frequency vibrations by having a motor drive an eccentric wheel to rotate, using this vibration sensation to relax superficial muscles. Alternatively, they may use a purely mechanical telescopic structure to simulate a tapping motion and thus reach deeper muscles. However, existing massage devices often have a relatively simple design in terms of their structural construction. Devices that use a hard massage head for telescopic tapping, while possessing a certain amount of force and penetration depth, have a harsh feel, so that contact with bony prominences or sensitive soft tissue can easily cause pain or even injury, and they lack flexible cushioning. Devices that operate exclusively with air cushion pressure, while providing a soft touch and a certain enveloping sensation, can generally only perform a static pressing motion; they lack an active reciprocating telescopic movement, making effective, forceful relaxation of deeper muscles difficult to achieve. Currently, there is no device on the market that can effectively combine mechanical deep-penetrating telescopic movement with pneumatic flexible expansion pressure. Existing technical solutions cannot simultaneously integrate the three functions of telescopic impact, magnifying air cushion cushioning, and high-frequency vibration into the same massage head, resulting in a lack of complexity in the massage experience and failing to meet users' demands for a multidimensional, comfortable, and deep-penetrating massage. Therefore, the utility model proposes a telescopic massage device with air cushions to eliminate the shortcomings of the prior art. Content of the present utility model In view of the problems existing in the prior art, namely that a telescopic massage device with air cushions cannot simultaneously provide deep-acting mechanical shock movement or flexible pneumatic cushioning, resulting in a harsh massage sensation and a one-sided function, and that a telescopic mechanism is prone to rotational deviation under high load, leading to unstable operation, the utility model aims to provide a structurally improved telescopic massage device with air cushions that can effectively solve the aforementioned problems. The utility model provides a telescopic air cushion massage device comprising a housing, a battery permanently installed inside the housing, and an inflation assembly and telescopic assembly, respectively, arranged inside the housing. The telescopic assembly comprises a telescopic motor permanently installed inside the housing and a telescopic bracket positioned above the telescopic motor. A drive shaft is rigidly connected to the output end of the telescopic motor. A cam-operated sliding block is rotatably connected to the end of the drive shaft facing away from the telescopic motor. The cam-operated sliding block glides against an inner base surface of the telescopic bracket. Furthermore, a guide rod is rigidly attached to the top of the telescopic motor. The guide rod extends vertically and passes through the interior of the telescopic bracket. The telescopic bracket is slidably connected to the guide rod. A mounting seat is rigidly attached to the top of the telescopic bracket. The inflation assembly comprises a silicone air cushion rigidly and sealingly mounted to the top of the mounting seat, and an internal vibration motor rigidly mounted to an upper portion of the silicone air cushion. Preferably, the inflation assembly further comprises an air pump arranged inside the housing, a T-piece, a valve, and an air outlet. An air outlet end of the air pump is connected via an air line to a first connection of the T-piece to provide an air source driving force. Preferably, a second port of the T-piece is connected to the valve, and a third port of the T-piece is connected to the air outlet. The air outlet is connected to an inner air chamber of the silicone air cushion, thus forming a complete control circuit for inflation and deflation. Preferably, the cam-actuated sliding block and the drive shaft are connected to each other via an eccentric shaft. The rotary motion of the drive shaft is converted by the cam-actuated sliding block into a reciprocating linear motion of the telescopic mount in the axial direction of the guide rod, thus achieving a mechanical telescopic massage motion. Preferably, a charging contact pin is provided on one side of the battery. The charging contact pin is embedded in a side wall of the housing and electrically connected to the battery. The battery is electrically connected to both the telescopic motor and the internal vibration motor to supply the device with electrical energy. Preferably, the internal vibration motor is surrounded on the outside by a flexible buffer layer, and the internal vibration motor is arranged embedded in a groove on an upper area of ​​the silicone air cushion to increase comfort during massage and to protect the internal components. Preferably, the mounting seat has a disc-shaped structure. A lower edge of the silicone air cushion is firmly connected to an outer edge of the mounting seat by means of a sealant or snap-fit ​​connection, thus ensuring airtightness. Preferably, a through-opening is formed in the housing at a position corresponding to the silicone air cushion. The silicone air cushion and the internal vibration motor can protrude through the through-opening to the outside of the housing, so that they can come into contact with the human body for massage. The utility model has the following advantageous effects: 1. By providing the silicone air cushion and the internal vibration motor at the top of the telescopic bracket and by the coordinated interaction of the internal inflation assembly and the telescopic assembly, the utility model solves the problem that existing massage devices have a one-sided function and cannot simultaneously provide deep-penetrating percussive movement and flexible pressure. This achieves a multidimensional combined massage effect that integrates mechanical reciprocating telescopic movement, breathing-like expansion pressure of the air cushion, and high-frequency vibration, thereby improving the user experience. 2.The utility model solves the problem of the telescopic mount being prone to rotational deviation or jamming during high-frequency reciprocating movements by means of a firmly attached guide rod at the top of the telescopic motor and by routing the guide rod through the interior of the telescopic bracket to create a sliding stop. This achieves the technical benefits of precise telescopic movement, stable operation, and a compact structure, thereby effectively extending the device's service life. 3. The utility model also solves the problem of conventional hard massage heads having a harsh feel and lacking cushioning by means of an inflation and deflation circulation system formed by the air pump, T-piece, valve, and silicone air cushion.This achieves the technical effect of simulating a flexible pressure sensation through the inflated expansion of the air cushion, allowing the device to adapt to a body contour and simultaneously reducing mechanical shock loads on bones or sensitive body areas through the cushioning effect of the air cushion. Brief description of the characters Fig. 1 is a schematic perspective view of a telescopic air cushion massage device according to the utility model; Fig. 2 is a schematic structural view of an internal vibration motor of a telescopic air cushion massage device according to the utility model; Fig. 3 is a schematic structural view of an inflation assembly of a telescopic air cushion massage device according to the utility model; Fig. 4 is a schematic structural view of a telescopic assembly of a telescopic air cushion massage device according to the utility model. Detailed descriptions To clarify and explain the purposes, technical solutions, and advantages of the utility model, the technical solutions in the exemplary embodiments of the utility model are described below with reference to the drawings. It is understood that the described exemplary embodiments represent only a portion of the utility model's embodiments and not all of them. All other embodiments that a person skilled in the art could obtain from the exemplary embodiments of the utility model without any inventive activity fall within the scope of protection of the utility model. Example implementation: Reference is made to Figures 1, 2, 3 to 4. One embodiment of the utility model provides a telescopic massage device with an air cushion, which aims to solve the prior art problem that massage devices have a one-sided function and lack a combined stimulation structure that combines a reciprocating telescopic movement, expansion and contraction of the air cushion, and high-frequency vibration. As shown in Figs. 1 and 2, the telescopic air-cushioned massage device comprises a housing 1 and a battery 5 permanently installed inside the housing 1. The housing 1 serves as a mounting base and protective enclosure for the entire device. An inflation assembly 2 and a telescopic assembly 3 are housed within it. The battery 5 provides the electrical energy for the telescopic assembly 3 and the inflation assembly 2. As shown in Figs. 2 and 4, the telescopic assembly 3 comprises a telescopic motor 301 fixedly installed at the inner lower end of the housing 1 and a telescopic support 302 arranged above the telescopic motor 301. The telescopic motor 301 serves as the drive source for the telescopic movement. A drive shaft 304 is fixedly connected to its output end. A cam-actuated sliding block 303 is rotatably connected to an end of the drive shaft 304 facing away from the telescopic motor 301. The cam-actuated sliding block 303 glides against an inner base surface of the telescopic support 302. The cam-actuated sliding block 303 and the drive shaft 304 are connected to each other via an eccentric shaft to convert the rotary motion of the drive shaft 304 into a linear thrust force of the telescopic support 302. A guide rod 305 is also rigidly attached to the top of the telescopic motor 301. The guide rod 305 extends vertically and passes through the interior of the telescopic mount 302. The telescopic mount 302 is slidably connected to the guide rod 305. The guide rod 305 performs a guiding and limiting function, enabling the telescopic mount 302 to move linearly and stably back and forth in the vertical direction, preventing rotation or deviation during movement. A mounting seat 306 is rigidly connected to the upper surface of the telescopic bracket 302. The mounting seat 306 serves as a support component and moves synchronously with the telescopic bracket 302. The inflation assembly 2 comprises a silicone air cushion 201 rigidly and sealingly arranged on the upper surface of the mounting seat 306, and an internal vibration motor 206 rigidly arranged on an upper region of the silicone air cushion 201. The mounting seat 306 has a disc-shaped structure. A lower edge of the silicone air cushion 201 is rigidly connected to an outer edge of the mounting seat 306 by means of a sealant or snap-fit ​​connection, thus ensuring airtightness. The internal vibration motor 206 provides a high-frequency vibration massage. It is embedded in an inner wall surface in the upper area of ​​the silicone air cushion 201 and is permanently installed. The outer surface of the internal vibration motor 206 is encased in a flexible buffer layer to protect the motor and enhance tactile comfort. The silicone air cushion 201 simulates a breathing-like massage sensation by inflating and expanding, as well as deflating and contracting. A through-opening is provided in the housing 1 at a position corresponding to the silicone air cushion 201. The silicone air cushion 201 and the internal vibration motor 206 can protrude through this opening to the outside of the housing 1 to perform massage operations. To solve the aforementioned technical problems, the telescopic air cushion massage device further includes an inflation assembly 2. A specific structural arrangement and connection relationship exists between the inflation assembly 2, the housing 1, and the silicone air cushion 201. The inflation assembly 2 is designed to provide inflation power and deflation control to the silicone air cushion 201 and, in conjunction with the telescopic assembly 3, to create a multidimensional massage experience. With particular reference to Fig. 3, this core structure is described in detail below: The inflation assembly 2 comprises an air pump 202 installed inside the housing 1, a T-piece 203, a valve 204, and an air outlet 205. The air pump 202 serves as the air source-side drive component and is fixed to an inner wall or an internal bracket of the housing 1 by means of screws or a snap-fit ​​connection. An air outlet end of the air pump 202 is connected via an air line to a first port of the T-piece 203. The T-piece 203 serves as the essential connecting element for distributing the air path. A second port of the T-piece 203 is connected to the valve 204. The valve 204 serves to control the opening and closing of the air path in order to implement a venting function. A third port of the T-piece 203 is connected to the air outlet 205.The air outlet 205 serves as the final air outlet and is connected to an inner sealed air chamber of the silicone air cushion 201. Simultaneously, an air inlet connection is provided on the silicone air cushion 201. An airtight connection is established between the air outlet 205 and the silicone air cushion 201 by means of a hose or by direct docking. Since the silicone air cushion 201 follows the reciprocating movement of the telescopic bracket 302, while the air outlet 205 and the air pump 202 are fixed inside the housing 1, the connecting line between the air outlet 205 and the silicone air cushion 201 is designed as a bellows or a flexible rubber hose with telescopic elasticity. This flexible connection structure ensures that the inflation line does not break or detach when the silicone air cushion 201 is driven into a reciprocating movement by the telescopic assembly 3, thereby guaranteeing the permanent continuity of the air path and the operational reliability of the device. Regarding the arrangement of the battery 5, a charging contact pin 4 is provided on one outer surface of the battery 5. The charging contact pin 4 is embedded in a side wall of the housing 1 and electrically connected to the battery 5. The battery 5 is electrically connected to the telescopic motor 301, the air pump 202, and the internal vibration motor 206 to continuously and stably supply the individual electrical components with electrical energy. The control unit can be designed as an integrated circuit board and serves to coordinate the switching on and off of the individual motors and the air pump. Its specific internal circuit structure is part of the general technical knowledge in this field and is therefore not described further here. Based on the foregoing embodiments, the utility model may further include the following preferred technical solutions: In a preferred embodiment, to optimize the stability of the mechanical transmission and to achieve precise control of the reciprocating motion, the connection structure between the cam-actuated sliding block 303 and the drive shaft 304 is designed as an eccentric drive arrangement. An eccentric pin or eccentric wheel structure is provided at the end region of the drive shaft 304. This eccentric structure is rotatably connected to a central opening or a detent groove of the cam-actuated sliding block 303.When the drive shaft 304 rotates, the eccentric structure drives the cam-actuated sliding block 303 into a limited planar movement within the interior of the telescopic bracket 302, thereby efficiently converting the torque into a vertical driving force that moves the telescopic bracket 302 sliding along the axial direction of the guide rod 305. The guide rod 305 is designed as a guide element and extends through a central or lateral guide opening in the telescopic bracket 302. A sliding fit with a low coefficient of friction is provided between the two, effectively preventing the telescopic bracket 302 from oscillating laterally or jamming during a high-frequency reciprocating movement. In a further preferred embodiment, to ensure the compactness of the inflation air path and the reliability of the seal, an air outlet of the air pump 202 is connected airtight to a first port of the T-piece 203 via a high-strength air duct hose. A second port of the T-piece 203 is directly coupled to an air inlet of the valve 204. A third port of the T-piece 203 is connected to the air outlet 205 via another flexible duct hose. The air outlet 205 is firmly connected to an air inlet channel on the lower part of the silicone air cushion 201 by means of a threaded connection or press fit, thus forming a completely closed control circuit for inflation and deflation.All pipe connection points are fitted with sealing rings or hose clamps to prevent gas leakage and to ensure that the silicone air cushion 201 can respond quickly to instructions for inflating and deflating. In another preferred embodiment, to improve the comfort of the vibration massage and to protect the internal components, the mounting seat 306 is designed as a disc-shaped or stepped structure adapted to the shape of the lower part of the silicone air cushion 201. A lower edge of the silicone air cushion 201 is sealed to an outer circumferential side wall of the mounting seat 306 by means of a high-strength sealant or mechanical snap-fit ​​connection. A groove or mounting space for receiving the internal vibration motor 206 is provided on an inner wall surface in the upper region of the silicone air cushion 201. The internal vibration motor 206 is installed embedded in this groove. The outer surface of the internal vibration motor 206 is covered with a flexible buffer layer made of silicone, foam, or soft rubber.This flexible buffer layer is arranged between the internal vibration motor 206 and the silicone air cushion 201, so that it can effectively transmit the vibration energy on the one hand and cushion hard impacts on the other. As a supplementary, more specific structural detail, a through-hole is formed at a central position on the top of the housing 1, through which the working head protrudes. The inner diameter of this through-hole is larger than the largest outer diameter of the silicone air cushion 201, both in its natural state and in its inflated, expanded state. This ensures that the silicone air cushion 201 and the internal vibration motor 206, located beneath the drive of the telescopic assembly 3, can smoothly extend outwards through the through-hole from the housing 1 or retract back into the housing 1. The charging contact pin 4 serves as the power interface and is attached by means of embedded overmolding or by nut fastening in a mounting hole in the side wall of the housing 1. Its metallic contacts are exposed on the surface of the housing 1 to allow connection to an external charger.Its inner connecting pins are welded to electrodes of battery 5 via wires. The working principle of the telescopic air cushion massage device of the utility model is as follows: When the user activates the device to start a massage program, battery 5 supplies electrical energy to power the individual load components. The control unit causes the air pump 202 to begin operation. Ambient air is drawn in and directed through the internal air path to the T-piece 203. A high-pressure airflow enters a sealed inner chamber of the silicone air cushion 201 through the T-piece 203 and the air outlet 205, forcing the silicone air cushion 201 to expand in volume and bulge outwards, ensuring a close fit against the skin. Simultaneously, the internal vibration motor 206 is powered and activated to generate high-frequency mechanical vibration.This vibrational energy is transferred directly via an upper area of ​​the silicone air cushion 201 to a point to be massaged, so that synchronous stimulation is achieved through inflated pressure and high-frequency vibration. When a pressure intensity is to be set or a breathing-like massage rhythm is to be simulated, the control unit opens the valve 204. The gas inside the silicone air cushion 201 flows back to the T-piece 203 via the air outlet 205 and is discharged via the valve 204. The silicone air cushion 201 then contracts and returns to its initial state. Through precise control of the inflation duration of the air pump 202 and the opening and closing frequency of the valve 204, the silicone air cushion 201 exhibits periodic changes in expansion and contraction, thus providing a flexible and rhythmic massage experience. Simultaneously, the telescopic motor 301 is started and drives the drive shaft 304 into rotation. The drive shaft 304, via the eccentric arrangement, drives the cam-actuated sliding block 303, causing it to slide within the telescopic mount 302 and convert the rotational torque into an axial thrust force. Under the limiting guidance of the guide rod 305, the telescopic mount 302 moves the mounting seat 306 located on its upper side and the silicone air cushion 201 as a whole in a reciprocating linear motion in the vertical direction, so that the silicone air cushion 201 continuously extends through and retracts from the opening of the housing 1. This mechanical reciprocating telescopic movement increases the depth of the massage. In combination with the flexible cushioning of the air cushion and the subtle vibration sensation of the internal vibration motor 206, a multidimensional combined massage effect is achieved. The foregoing description merely presents specific embodiments of the utility model; however, the scope of protection of the utility model is not limited thereto. All modifications or replacements that a person skilled in the art in this technical field can readily make within the scope of the technical information disclosed in the utility model shall fall within the scope of protection of the utility model. Therefore, the scope of protection of the utility model is determined by the scope of protection of the claims. Reference symbol list 1 Housing; 2 Inflation assembly; 201 Silicone air cushion; 202 Air pump; 203 T-piece; 204 Valve; 205 Air outlet; 206 Internal vibration motor; 3 Telescopic assembly; 301 Telescopic motor; 302 Telescopic bracket; 303 Cam-operated sliding block; 304 Drive shaft; 305 Guide rod; 306 Mounting seat; 4 Charging contact pin; 5 Battery.

Claims

Telescopic massage device with air cushion, comprising a housing (1), a battery (5) arranged inside the housing (1), and an inflation assembly (2) and telescopic assembly (3) each arranged inside the housing (1); characterized in that: - the telescopic assembly (3) comprises a telescopic motor (301) fixedly arranged inside the housing (1) and a telescopic support (302) arranged above the telescopic motor (301); - a drive shaft (304) is fixedly connected to the output end of the telescopic motor (301), wherein a cam-actuated sliding block (303) is rotatably connected to an end of the drive shaft (304) facing away from the telescopic motor (301), and wherein the cam-actuated sliding block (303) slidably interacts with an inner base surface of the telescopic support (302);- a guide rod (305) is furthermore rigidly connected to the upper side of the telescopic motor (301), wherein the guide rod (305) extends in a vertical direction and passes through the interior of the telescopic support (302), and wherein the telescopic support (302) is slidably connected to the guide rod (305); - a mounting seat (306) is rigidly connected to the upper side of the telescopic support (302), wherein the inflation assembly (2) comprises a silicone air cushion (201) rigidly and sealingly arranged on the upper side of the mounting seat (306) and an internal vibration motor (206) rigidly arranged on an upper region of the silicone air cushion (201). Telescopic massage device with air cushion according to claim 1, characterized in that the inflation assembly (2) further comprises an air pump (202) arranged inside the housing (1), a T-piece (203), a valve (204) and an air outlet (205), wherein an air outlet end of the air pump (202) is connected via an air line to a first connection of the T-piece (203). Telescopic massage device with air cushion according to claim 2, characterized in that a second connection of the T-piece (203) is connected to the valve (204), a third connection of the T-piece (203) is connected to the air outlet (205), and the air outlet (205) is connected to an inner air chamber of the silicone air cushion (201). Telescopic massage device with air cushion according to claim 1, characterized in that the cam-actuated sliding block (303) and the drive shaft (304) are connected to each other via an eccentric shaft, wherein the rotary movement of the drive shaft (304) is converted via the cam-actuated sliding block (303) into a reciprocating linear movement of the telescopic holder (302) in the axial direction of the guide rod (305). Telescopic massage device with air cushion according to claim 1, characterized in that a charging contact pin (4) is provided on an outside of the battery (5), wherein the charging contact pin (4) is embedded in a side wall of the housing (1) and is electrically connected to the battery (5), and wherein the battery (5) is electrically connected to the telescopic motor (301) and the internal vibration motor (206), respectively. Telescopic massage device with air cushion according to claim 1, characterized in that the internal vibration motor (206) is surrounded on the outside by a flexible buffer layer and is arranged embedded in a groove on an upper area of ​​the silicone air cushion (201). Telescopic massage device with air cushion according to claim 1, characterized in that the mounting seat (306) has a disc-shaped structure, wherein a lower edge of the silicone air cushion (201) is firmly connected to an outer edge of the mounting seat (306) by means of a sealing adhesive or snap connection. Telescopic massage device with air cushion according to claim 1, characterized in that a through-opening is formed in the housing (1) at a position corresponding to the silicone air cushion (201), wherein the silicone air cushion (201) and the internal vibration motor (206) can project outwards through the through-opening from the housing (1).

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