Auxiliary massage equipment for automobile seat

Abstract

The invention discloses auxiliary massage equipment for an automobile seat, and relates to the technical field of automobile seats. When the auxiliary massage equipment for the automobile seat is used, through mutual cooperation of the supporting assembly, the vibration assembly, the elastic telescopic assembly, the control assembly, the pushing assembly and other parts, the massage contacts which abut against each other can adapt to the outline of the abutting position of the back of a user so as to better fit the curve of the back of the human body, and the massage effect is better. According to the back massage chair, the massage contacts can be pressed against the corresponding positions of the back of a user with certain extrusion force and vibrate to achieve a sufficient massage effect, and in the vibration process, the massage contacts at the corresponding positions can autonomously control whether vibration operation is carried out or not according to whether the user makes contact with the chair or not actually, so that the massage effect is improved, and the user experience is improved. Unnecessary electric energy generated by vibration of the massage contacts which do not abut against each other is avoided, and energy consumption of the auxiliary massage equipment for the automobile seat is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle seats, and particularly to an auxiliary massage device for automobile seats. Background Art

[0002] An auxiliary massage device for automobile seats is a device installed inside an automobile seat that provides massage services for drivers and passengers through various technical means to relieve fatigue and relax the body. The main massage methods are as follows: Pneumatic massage: Compressed air is generated by an air pump and is controlled by a valve to be filled into and discharged from air bags inside the seat backrest or seat cushion, causing the air bags to bulge and deflate, simulating actions such as pressing and kneading. Wave-like massage can be achieved by allowing the air bags to inflate and deflate sequentially in order to form a wave-like movement to gently massage the back muscles; segmental massage can also be performed by dividing the massage area of the seat into several segments, such as the shoulders, chest, waist, etc., and by controlling the inflation and deflation of the air bags in different segments to achieve segmented pressing and relaxation.

[0003] Electromechanical massage: An electric motor is used to drive mechanical components, such as steel cables, sliding modules, metal shrapnel, etc., to cause the massage contacts or massage plates inside the seat to move. For example, by using the electric motor to pull the steel cable, the sliding module connected to the steel cable reciprocates, driving the metal shrapnel and plastic adjustment plate to protrude forward and retract to massage parts such as the waist. Additionally, the electric motor can drive an eccentric wheel or cam mechanism to produce a vibration effect to achieve vibration massage.

[0004] Electronic oscillation massage: An electronic oscillator is controlled by a computer integrated in the seat, and according to a preset program, the vibration frequency, amplitude, and rhythm of the massage components are precisely adjusted to produce different massage effects, and various delicate massage actions such as finger pressure and tapping can be simulated.

[0005] During the process of the auxiliary massage device performing massage operations through electromechanical drive, the mechanical structure of the electromechanical drive massage device is relatively fixed, and the vibration of the massage contacts is directly driven by the electric motor. It is difficult to flexibly adjust according to the real-time state of the seat backrest during movement, so that the massage contacts cannot autonomously control whether to perform vibration operations according to the actual user's seat backrest state on the seat. Moreover, the unnecessary vibration of the massage contacts that are not in contact will consume unnecessary electric energy, increasing the energy consumption of the auxiliary massage device for automobile seats. For this reason, we propose an auxiliary massage device for automobile seats. Summary of the Invention

[0006] The purpose of the present invention is to provide an auxiliary massage device for automobile seats to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: An auxiliary massage device for an automobile seat, including a mounting housing fixed to the inner side of the seat body, further including: A partition fixed inside the mounting housing, and the interior of the mounting housing is divided by the partition to form an operation chamber and a pressure chamber. The operation chamber is arranged towards the front side of the seat body, and a support assembly and a vibration assembly for auxiliary massage are arranged between the front side of the mounting housing and the operation chamber; A plurality of groups of the support assemblies are arranged in a uniformly distributed state on the front side of the mounting housing. The support assembly includes a mounting hole opened on the front side of the mounting housing. The mounting hole is communicated with the interior of the operation chamber. A rubber ring is fixed inside the mounting hole. A massage contact is slidably connected to the inner side of the rubber ring. One end of the massage contact is located on the front side of the mounting housing, and the other end of the massage contact is located inside the operation chamber and is connected to a piston rod through a connecting assembly. A plurality of fixed cylinders are fixed on the partition. An elastic telescopic assembly for telescopically connecting the piston rod is arranged on the fixed cylinder. A control assembly for controlling the pressure supply to the piston rod is arranged between the fixed cylinder and the piston rod. A piston plate for squeezing the internal gas is slidably connected to the interior of the pressure chamber. The piston plate is arranged to match the interior of the pressure chamber. A pushing assembly for pushing the piston plate is arranged on the mounting housing.

[0008] Preferably, the connecting assembly includes a connecting rod fixed to one end of the piston rod, and the connecting rod and the opposite end of the massage contact are flexibly connected through a rubber block.

[0009] Preferably, the elastic telescopic assembly includes a mounting groove opened inside the fixed cylinder. The piston rod is slidably connected to the interior of the mounting groove. Two groups of sleeves are symmetrically fixed inside the mounting groove. An expansion rod is slidably connected to the two groups of sleeves. One end of the expansion rod is fixed to one end of the piston rod. A spring is sleeved on the outer side of the sleeve. The two ends of the spring are respectively abutted against the piston rod and the inner wall of the mounting groove. A stroke limit assembly for assisting in limiting the telescopic movement stroke is arranged on the sleeve.

[0010] Preferably, the stroke limit assembly includes two groups of limit sliding grooves opened on the sleeve. A sliding pin is slidably connected to the limit sliding grooves. The two groups of sliding pins are symmetrically fixed to the expansion rod.

[0011] Preferably, the control assembly includes an annular cavity opened on the fixed cylinder. The annular cavity is communicated with the interior of the pressure chamber. An opening for gas circulation is opened between the annular cavity and the mounting groove. A blocking plate for blocking against the opening is fixed to one end of the piston rod. A through hole for controlling gas circulation is opened on the blocking plate.

[0012] Preferably, the vibration assembly includes a vibration plate disposed inside the operation cavity. A vibrator for generating vibration is installed on the vibration plate. The periphery of the vibration plate is flexibly connected to the inner wall of the operation cavity through a rubber plate. A plurality of connection holes for engaging and driving the massage contacts are formed on the vibration plate, and each of the connecting rods is located inside each connection hole.

[0013] Preferably, the outer diameter of the connecting rod is smaller than the outer diameter of the connection hole.

[0014] Preferably, the pushing assembly includes a U-shaped frame fixed to the outside of the installation housing. A threaded tube is slidably connected to the installation housing. One end of the threaded tube is fixed to the piston plate. A threaded rod is threadedly engaged with the threaded tube. A drive motor for driving the threaded rod is installed on the U-shaped frame. A sleeve is slidably connected to the installation housing. One end of the sleeve is fixed to the piston plate. A slide rod is slidably connected to the sleeve. One end of the slide rod is fixed to the U-shaped frame.

[0015] Preferably, a pressure relief valve for relieving pressure inside the pressure cavity during the boosting process is installed on the installation housing.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: When the automotive seat auxiliary massage device of the present invention is in use, through the mutual cooperation of components such as the support assembly, vibration assembly, elastic telescopic assembly, control assembly, and pushing assembly, it can not only make the massage contacts after abutting against each other adapt to the contour of the abutting position on the user's back, so as to better fit the curve of the human back and ensure full and close contact with the back, but also make the massage contacts abut against the corresponding position on the user's back with a certain extrusion force and vibrate, achieving the effect of full massage. Moreover, during the vibration process, it can be realized that the massage contacts at the corresponding positions can independently control whether to perform vibration operation according to whether the actual user contacts the chair back, avoiding unnecessary electric energy generated by the vibration of the un-abutted massage contacts and reducing the energy consumption of the automotive seat auxiliary massage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall external structure of the present invention; Figure 2 is a schematic diagram of the back structure of the installation housing of the present invention; Figure 3 is a schematic diagram of the internal structure of the installation housing of the present invention; Figure 4 is a schematic diagram of the internal partition and piston plate of the installation housing of the present invention; Figure 5 is a schematic diagram of the support assembly of the present invention; Figure 6Schematic structural diagram of the connection component, elastic telescopic component, stroke limiting component and control component of the present invention; Figure 7 Schematic structural diagram of the vibration component of the present invention; Figure 8 Schematic diagram of the initial state of the support component and the vibration plate of the present invention; Figure 9 Schematic structural diagram of the pushing component of the present invention; Figure 10 Schematic diagram of the state of the massage contact on the support component of the present invention before being pushed by the chair back; Figure 11 Schematic diagram of the state of the massage contact on the support component of the present invention after being pushed by the chair back.

[0018] In the figure: 101 - seat body; 102 - mounting housing; 2 - partition; 301 - mounting hole; 302 - massage contact; 303 - piston rod; 304 - rubber ring; 401 - connecting rod; 402 - rubber block; 5 - fixed cylinder; 601 - mounting groove; 602 - sleeve; 603 - telescopic rod; 604 - spring; 701 - limit chute; 702 - sliding pin; 801 - annular cavity; 802 - opening; 803 - sealing plate; 804 - through hole; 9 - piston plate; 1001 - U-shaped frame; 1002 - threaded tube; 1003 - threaded rod; 1004 - drive motor; 1005 - sleeve; 1006 - sliding rod; 11 - pressure relief valve; 1201 - vibration plate; 1202 - vibrator; 1203 - rubber plate; 1204 - connecting hole. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1, please refer to Figures 1-11 , an automotive seat auxiliary massage device shown in the figure, including a mounting housing 102 fixed to the inner side of the seat body 101, and further including: A partition 2 fixed inside the mounting housing 102, and the inside of the mounting housing 102 is divided by the partition 2 into an operation chamber and a pressure chamber. The operation chamber is arranged towards the front side of the seat body 101, and a support component and a vibration component for auxiliary massage are arranged between the front side of the mounting housing 102 and the operation chamber; A plurality of support components are evenly arranged on the front side of the installation housing 102. The support component includes an installation hole 301 formed on the front side of the installation housing 102. The installation hole 301 communicates with the inside of the operation cavity. A rubber ring 304 is fixed inside the installation hole 301. A massage contact 302 is slidably connected to the inner side of the rubber ring 304. One end of the massage contact 302 is located on the front side of the installation housing 102, and the other end of the massage contact 302 is located inside the operation cavity and is connected to a piston rod 303 through a connection component. A plurality of fixed cylinders 5 are fixed on the partition 2. An elastic telescopic component for telescopically connecting the piston rod 303 is arranged on the fixed cylinder 5. A control component for controlling the pressure supply of the piston rod 303 is arranged between the fixed cylinder 5 and the piston rod 303. A piston plate 9 for extruding the internal gas is slidably connected inside the pressure cavity. The piston plate 9 is arranged to match the inside of the pressure cavity. A pushing component for pushing the piston plate 9 is arranged on the installation housing 102; It should be noted here that when the automotive seat auxiliary massage device is in use, through the mutual cooperation of components such as the support component, the vibration component, the elastic telescopic component, the control component and the pushing component, not only can the massage contacts 302 after mutual abutment of each group adapt to the contour of the abutment position of the user's back, so as to better fit the curve of the human back and ensure full and close contact with the back, but also the massage contacts 302 can abut against the corresponding positions of the user's back with a certain extrusion force and vibrate, achieving the effect of full massage. And during the vibration process, it can be realized that the massage contacts 302 at the corresponding positions can independently control whether to perform vibration operation according to whether the actual user contacts the chair back, avoiding unnecessary electric energy generated by the vibration of the non-abutted massage contacts 302 and reducing the energy consumption of the automotive seat auxiliary massage device.

[0021] Preferably, the connection component includes a connecting rod 401 fixed to one end of the piston rod 303. The connecting rod 401 is flexibly connected to the opposite end of the massage contact 302 through a rubber block 402; It should be noted here that through the connecting rod 401 and the rubber block 402, it is convenient for the flexible connection between the piston rod 303 and the massage contact 302.

[0022] Preferably, the elastic telescopic component includes an installation groove 601 formed inside the fixed cylinder 5. The piston rod 303 is slidably connected inside the installation groove 601. Two sets of sleeves 602 are symmetrically fixed inside the installation groove 601. An expansion rod 603 is slidably connected to the two sets of sleeves 602. One end of the expansion rod 603 is fixed to one end of the piston rod 303. A spring 604 is sleeved outside the sleeve 602. The two ends of the spring 604 are respectively abutted against the piston rod 303 and the inner wall of the installation groove 601. A stroke limit component for assisting the telescopic movement stroke limit is arranged on the sleeve 602; It should be noted here that when the user's back abuts against the massage contact 302 at the corresponding position on the mounting housing 102 and pushes the massage contact 302 to move inward and contract towards the operation cavity, during the movement of the massage contact 302, through the connection between the rubber block 402 and the connecting rod 401, the piston rod 303 is pushed to move inward and contract towards the mounting groove 601 of the fixed cylinder 5. During the movement of the piston rod 303, the blocking plate 803 is driven to move synchronously and the through hole 804 on the blocking plate 803 is in communication with the opening hole 802. During the contraction movement of the massage contact 302 and the piston rod 303, the telescopic rod 603 is pushed to slide on the sleeve 602 and the spring 604 is deformed by force to generate elastic force. Through the elastic force of the spring 604 and the connection between the piston rod 303, the connecting rod 401 and the rubber block 402, an extrusion force is generated on the massage contact 302, so that the massage contact 302 remains in contact with the position where the user's back leans against the chair.

[0023] Preferably, the stroke limiting assembly includes two groups of limiting chutes 701 formed on the sleeve 602. A sliding pin 702 is slidably connected to the limiting chute 701. The two groups of sliding pins 702 are symmetrically fixed on the telescopic rod 603. It should be noted here that during the movement of the telescopic rod 603, the sliding pin 702 is driven to move synchronously. During the movement of the sliding pin 702, the sliding stroke of the sliding pin 702 is limited by the limiting chute 701.

[0024] Preferably, the control assembly includes an annular cavity 801 formed on the fixed cylinder 5. The annular cavity 801 is internally communicated with the pressure cavity. An opening hole 802 for gas flow is communicated between the annular cavity 801 and the mounting groove 601. One end of the piston rod 303 is fixed with a blocking plate 803 for abutting and blocking the opening hole 802. A through hole 804 for controlling gas flow is formed on the blocking plate 803. It should be noted here that when the user's back abuts against the massage contact 302 at the corresponding position on the mounting housing 102 and pushes the massage contact 302 to move inward and contract towards the operation cavity, during the movement of the massage contact 302, through the connection between the rubber block 402 and the connecting rod 401, the piston rod 303 is pushed to move inward and contract towards the mounting groove 601 of the fixed cylinder 5. During the movement of the piston rod 303, the blocking plate 803 is driven to move synchronously and the through hole 804 on the blocking plate 803 is in communication with the opening hole 802, which is convenient for some gas inside the pressure cavity to enter the inside of the mounting groove 601 during the subsequent movement of the piston plate 9. It should be noted here that when the massage contact 302 is not squeezed and pushed, the opening 802 is blocked by the blocking plate 803, so that the massage contact 302 that has not made contact will not be inflated and pressurized, and through the blocking effect, the positions that are connected can be squeezed and pushed more efficiently during the air supply and extrusion process.

[0025] Preferably, the vibration assembly includes a vibration plate 1201 disposed inside the operation cavity. A vibrator 1202 for generating vibration is installed on the vibration plate 1201. The periphery of the vibration plate 1201 is flexibly connected to the inner wall of the operation cavity through a rubber plate 1203. A plurality of groups of connection holes 1204 for clamping and driving the massage contact 302 are formed on the vibration plate 1201. Each group of connecting rods 401 are respectively located inside each group of connection holes 1204; It should be noted here that when the user's back abuts against the massage contact 302 at the corresponding position on the mounting housing 102 and pushes the massage contact 302 to move inwardly toward the operation cavity, the massage contact 302 is engaged into the connection hole 1204 of the vibration plate 1201. The vibrator 1202 drives the vibration plate 1201 to vibrate. During the vibration of the vibration plate 1201, through the clamping connection between the massage contact 302 and the connection hole 1204, the massage contact 302 is driven to vibrate under force; It should be noted here that the vibrator 1202 is a conventional technical component for generating vibration, and its working principle and operation method are regarded as prior art in this application and will not be elaborated too much; It should be noted here that through the rubber plate 1203, the flexible connection between the vibration plate 1201 and the inner wall of the operation cavity is facilitated.

[0026] Preferably, the outer diameter of the connecting rod 401 is smaller than the outer diameter of the connection hole 1204; It should be noted here that through the size setting, the vibration of the vibration plate 1201 does not drive the connecting rod 401 to move.

[0027] Preferably, the pushing assembly includes a U-shaped frame 1001 fixed to the outside of the mounting housing 102. A threaded tube 1002 is slidably connected to the mounting housing 102. One end of the threaded tube 1002 is fixed to the piston plate 9. A threaded rod 1003 is threadedly engaged with the threaded tube 1002. A drive motor 1004 for driving the threaded rod 1003 is installed on the U-shaped frame 1001. A sleeve 1005 is slidably connected to the mounting housing 102. One end of the sleeve 1005 is fixed to the piston plate 9. A sliding rod 1006 is slidably connected to the sleeve 1005. One end of the sliding rod 1006 is fixed to the U-shaped frame 1001; It should be noted here that: by driving the driving motor 1004, the threaded rod 1003 is driven to rotate. During the rotation of the threaded rod 1003, through the meshing transmission between the threaded rod 1003 and the threaded tube 1002 and the sliding guiding action of the sleeve 1005 and the sliding rod 1006, the piston plate 9 after being stressed moves inside the pressure chamber.

[0028] Preferably, a pressure relief valve 11 for pushing and relieving the pressure inside the pressure chamber during the pressurization process is installed on the installation housing 102; It should be noted here that: through the pushing action on the piston plate 9, the pressure inside the pressure chamber and the fixed cylinder 5 communicating with the pressure chamber gradually increases, and through transmission, the pressure on the massage contact 302 and the user's back synchronously increases. During the pressurization process, when the pressure value inside the pressure chamber reaches the pressure relief value of the pressure relief valve 11, the pressure is relieved through the pressure relief valve 11, so that the pressure of the massage contact 302 on the user's back no longer continues to increase, avoiding discomfort caused to the user due to excessive squeezing force; It should be noted here that: the pressure relief valve 11 is a conventional operating component for controlling the pressure value, and its working principle and usage method are regarded as prior art in this application and will not be elaborated here.

[0029] In this solution: an automotive seat auxiliary massage device includes the following steps: When the automotive seat auxiliary massage device is in use, the installation housing 102 is installed inside the automotive seat. After installation, the user sits on the automotive seat and leans towards the installation housing 102. During the leaning process, the back of the user abuts against the front end of the massage contact 302 at the corresponding position on the front side of the installation housing 102. During the abutting process, the massage contact 302 is pushed to contract and move towards the inside of the operation chamber inside the rubber ring 304. The different forces of the massage contacts 302 at different positions abutting against the user's back cause the massage contacts 302 to undergo different lengths of contraction movements. Through the corresponding contraction movements of each abutting position, the massage contacts 302 after abutting adapt to the contour of the abutting position on the user's back, so as to better fit the curve of the human back, ensure full and close contact with the back, make the massage more comfortable and uniform, and avoid the situation of local poor contact or uneven pressure; When the user's back abuts against the massage contact 302 at the corresponding position on the mounting housing 102 and pushes the massage contact 302 to move inwardly toward the operation cavity, during the movement of the massage contact 302, through the connection between the rubber block 402 and the connecting rod 401, the piston rod 303 is pushed to move inwardly toward the mounting groove 601 of the fixed cylinder 5. During the movement of the piston rod 303, the blocking plate 803 is driven to move synchronously and the through hole 804 on the blocking plate 803 is in communication with the opening 802. During the contraction movement of the massage contact 302 and the piston rod 303, the telescopic rod 603 is pushed to slide on the sleeve 602 and the spring 604 is deformed under force to generate elastic force. Through the elastic force of the spring 604 and the connection between the piston rod 303, the connecting rod 401 and the rubber block 402, an extrusion force is generated on the massage contact 302, so that the massage contact 302 remains in contact with the backrest position of the user. During the backrest process, the piston plate 9 is pushed by the pushing component to move toward the partition 2 inside the pressure cavity. During the movement, through the extrusion of the gas inside the piston cavity by the piston plate 9, part of the gas is transported to the inside of the mounting groove 601 through the annular cavity 801, the opening 802 and the through hole 804 (see Figure 11 for the state). The gas entering the inside of the mounting groove 601 generates a thrust on the piston rod 303 and the massage contact 302 under the action of pressure. Through the elastic force of the spring 604 inside the mounting groove 601 and the action of gas pressure, the massage contact 302 after contraction and extrusion remains in contact with the corresponding position on the back of the user's backrest, ensuring the subsequent massage effect; Moreover, when the user's back abuts against the massage contact 302 at the corresponding position on the mounting housing 102 and pushes the massage contact 302 to move inwardly toward the operation cavity, the massage contact 302 is engaged into the connection hole 1204 of the vibration plate 1201 (see Figure 11 for the state). The vibration plate 1201 is driven to vibrate by the vibrator 1202. During the vibration of the vibration plate 1201, through the engagement connection between the massage contact 302 and the connection hole 1204, the massage contact 302 is driven to vibrate under force. Since the massage contact 302 remains in contact with the corresponding position on the user's back under the action of elastic force and gas pressure, the corresponding position on the user's back is fully massaged through the vibration of the massage contact 302; When the user is sitting on the car seat and tilting the backrest toward the mounting housing 102, the massage contact 302 on the mounting housing 102 that is not in contact with the user's back does not move inwardly (see Figure 10In the state where the massage contact 302 at this position is not inserted into the interior of the connection hole 1204 and does not move along with the vibration of the vibration plate 1201, it is realized that the massage contact 302 at the corresponding position can independently control whether to perform a vibration operation according to whether the actual user contacts the chair back, avoiding unnecessary electric energy generated by the vibration of the non-abutted massage contact 302 and reducing the energy consumption of the automotive seat auxiliary massage device.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary massage device for an automobile seat, comprising: An installation housing (102) fixed to the inner side of the seat body (101); Characterized in that it further comprises: A partition plate (2) fixed inside the installation housing (102), and the inside of the installation housing (102) forms an operation chamber and a pressure chamber under the partitioning action of the partition plate (2). The operation chamber is arranged towards the front side of the seat body (101). A support assembly and a vibration assembly for auxiliary massage are arranged between the front side of the installation housing (102) and the operation chamber; A plurality of groups of the support assemblies are arranged in a uniformly distributed state on the front side of the installation housing (102). The support assembly includes an installation hole (301) opened on the front side of the installation housing (102). The installation hole (301) communicates with the inside of the operation chamber. A rubber ring (304) is fixed inside the installation hole (301). A massage contact head (302) is slidably connected to the inner side of the rubber ring (304). One end of the massage contact head (302) is located on the front side of the installation housing (102), and the other end of the massage contact head (302) is located inside the operation chamber and is connected to a piston rod (303) through a connection assembly. A plurality of groups of fixed cylinders (5) are fixed on the partition plate (2). An elastic telescopic assembly for telescopically connecting the piston rod (303) is arranged on the fixed cylinder (5). A control assembly for pressurizing and controlling the piston rod (303) is arranged between the fixed cylinder (5) and the piston rod (303). A piston plate (9) for extruding the internal gas is slidably connected inside the pressure chamber. The piston plate (9) is arranged to match the inside of the pressure chamber. A pushing assembly for pushing the piston plate (9) is arranged on the installation housing (102).

2. The auxiliary massage device for an automobile seat according to claim 1, characterized in that: The connection assembly includes a connecting rod (401) fixed to one end of the piston rod (303). The connecting rod (401) and the opposite end of the massage contact head (302) are flexibly connected through a rubber block (402).

3. The automotive seat auxiliary massage device according to claim 2, characterized in that: The elastic telescopic assembly includes an installation groove (601) opened inside the fixed cylinder (5). The piston rod (303) is slidably connected inside the installation groove (601). Two groups of sleeves (602) are symmetrically fixed inside the installation groove (601). An expansion rod (603) is slidably connected to the two groups of sleeves (602). One end of the expansion rod (603) is fixed to one end of the piston rod (303). A spring (604) is sleeved on the outer side of the sleeve (602). The two ends of the spring (604) are respectively abutted against the piston rod (303) and the inner wall of the installation groove (601). A stroke limit assembly for assisting in limiting the telescopic movement stroke is arranged on the sleeve (602).

4. An automotive seat auxiliary massage device according to claim 3, characterized in that: The stroke limit assembly includes two groups of limit sliding grooves (701) opened on the sleeve (602). A sliding pin (702) is slidably connected to the limit sliding grooves (701). The two groups of sliding pins (702) are symmetrically fixed on the expansion rod (603).

5. The automotive seat auxiliary massage device according to claim 4, characterized in that: The control component includes an annular cavity (801) formed in the fixed cylinder (5). The annular cavity (801) communicates with the inside of the pressure cavity. An opening (802) for gas flow is formed between the annular cavity (801) and the installation groove (601). One end of the piston rod (303) is fixed with a blocking plate (803) for blocking and sealing the opening (802). A through hole (804) for controlling gas flow is formed in the blocking plate (803).

6. The automotive seat auxiliary massage device according to claim 5, characterized in that: The vibration component includes a vibration plate (1201) arranged inside the operation cavity. A vibrator (1202) for generating vibration is installed on the vibration plate (1201). The periphery of the vibration plate (1201) is flexibly connected to the inner wall of the operation cavity through a rubber plate (1203). A plurality of groups of connection holes (1204) for clamping and driving the massage contact (302) are formed in the vibration plate (1201). Each group of the connecting rods (401) is respectively located inside each group of the connection holes (1204).

7. The automotive seat auxiliary massage device according to claim 6, wherein: The outer diameter of the connecting rod (401) is smaller than the outer diameter of the connection hole (1204).

8. An automotive seat auxiliary massage device according to claim 1, characterized in that: The pushing component includes a U-shaped frame (1001) fixed to the outside of the installation shell (102). A threaded pipe (1002) is slidably connected to the installation shell (102). One end of the threaded pipe (1002) is fixed to the piston plate (9). A threaded rod (1003) is in threaded engagement with the threaded pipe (1002). A driving motor (1004) for driving the threaded rod (1003) is installed on the U-shaped frame (1001). A sleeve (1005) is slidably connected to the installation shell (102). One end of the sleeve (1005) is fixed to the piston plate (9). A sliding rod (1006) is slidably connected to the sleeve (1005). One end of the sliding rod (1006) is fixed to the U-shaped frame (1001).

9. An auxiliary massage device for an automotive seat according to claim 1, characterized in that: A pressure relief valve (11) for relieving the pressure inside the pressure cavity during the boosting process is installed on the installation shell (102).

Images