High-strength electric sliding rail for automobile seat

Abstract

The utility model discloses a high-strength electric sliding rail for an automobile seat, and belongs to the technical field of automobile parts. Comprising a static sliding rail which is fixed to an automobile bottom plate, and a seat basin connecting plate sliding groove is formed in the upper surface of the static sliding rail; the movable sliding rail is arranged in the static sliding rail cavity and forms a sliding pair with the static sliding rail; the seat basin connecting plate is inserted into the static sliding rail cavity at the position corresponding to the seat basin connecting plate sliding groove and is connected with the upper part of the movable sliding rail in the length direction; the screw rod is arranged in the static slide rail cavity in a state of keeping parallel to the length direction of the static slide rail; and the movable sliding rail automatic displacement driving mechanism is used for driving the movable sliding rail and the seat basin connecting plate to move, and is sequentially matched with the seat basin connecting plate, the movable sliding rail and the screw rod from top to bottom. The seat has the advantages that the stability of the seat is guaranteed, abnormal sound is avoided, and abrasion is avoided; the situations that the seat is ineffective to fix and the screw rod shakes are avoided; and the stability of the seat and the good comfort of a passenger are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, concretely relates to a high-strength electric slide rail for automobile seat. BACKGROUND

[0002] There are not a few technical information about electric slide rails for automobile seats in the disclosed Chinese patent documents, such as CN215204537U, a high-strength independent electric slide rail, CN116022040B, a sliding mechanism of an automobile seat slide rail, CN113320450A, an electric slide rail of an automobile seat, CN118082637A, a novel horizontal adjustment transmission vehicle seat slide rail assembly, CN205033973U, a front and rear adjustment mechanism of an automobile seat, CN210416305U, a seat slide rail assembly, and CN107087405A, a quick adjustment power regulator, etc.

[0003] Typically, CN113335150A recommends "a high-strength independent electric slide rail and a mounting structure between the slide rail and the vehicle floor", which is mainly proposed to address the shortcomings of prior art such as CN109130967A, an improved electric ground slide rail system for an automobile seat. For specific technical measures, please refer to paragraphs 0008 to 0027 of the specification of CN113335150A, and the specific technical effects can be summarized as the following four points: first, the original independent motor is replaced by two independent synchronous electric drive motors; second, since two motors are used, the large-size motor bracket in the seat horizontal adjustment system is naturally abandoned, eliminating the risk of being stepped on by a passenger; third, the use of a worm gear transmission mechanism can achieve the purpose of timely locking at any position; fourth, the worm gear transmission mechanism is horizontally arranged in the upper slide rail, saving the Z-direction space below the seat and fully utilizing the Y-direction space (for details, please refer to paragraphs 0030 to 0034 of the specification of the patent).

[0004] Through the applicant's long-term attention and analysis of the existing technology of the electric slide rail structure for the automobile seat including the above-mentioned patent, it is considered that the following common defects exist: Firstly, perhaps due to the constraints of traditional design and manufacturing thought mode, the lower slide rail as a static slide rail is currently a common way in the industry, which is obtained by stamping forming using a plate and with the help of a mold, regardless of the complex factors of the manufacturing process, in terms of strength, it is relatively lacking, however, the lack of strength will affect the passenger's posture during the collision, which has the risk of safety. Because the gap of the slide rail formed by stamping is relatively large, it will affect the stability of the seat and the comfort of the passenger to some extent, and the straightness of the moving slide rail is the most difficult to guarantee, and the lack of straightness will cause the seat to lose stability, produce abnormal noise, and aggravate wear, and the adjustment operation is not convenient, for example, it may be stuck or even blocked during the adjustment process, in addition, after the static slide rail formed by stamping is fixed on the automobile floor, it will inevitably cause problems such as loosening, damage or seat fixing failure during actual use; Secondly, because the roller mounting seat and the roller embedded thereon are directly embedded in the mounting seat embedding groove provided on the moving slide rail, also known as "slide support", during actual use, that is, when the moving slide rail is adjusted, the roller mounting seat is subjected to the double actions of the force from the roller and the reaction force from the embedding edge of the mounting seat embedding groove provided on the moving slide rail or the slide support, thereby the roller mounting seat which is monotonous in structure and relatively weak in strength is easily damaged, and once the roller mounting seat is damaged, the roller will lose support and be stuck in the gap between the moving and static slide rails, eventually leading to the loss of adjustment of the seat pan of the automobile seat by the moving slide rail, that is, the loss of the adjustment function of the automobile seat. The typical patent related to this technical problem is CN220842279U, a roller gap elimination mechanism of an automobile seat slide rail; Thirdly, due to the lack of dustproof measures for the upper surface of the static slide rail, during use, external dust and impurities will inevitably enter the static slide rail cavity from the chair seat pan connecting plate sliding groove on the lengthwise upper surface of the static slide rail, which will block the moving parts such as the screw provided in the static slide rail cavity, and in severe cases, the normal operation of the worm and gear box of the structure system of the automatic displacement driving mechanism of the moving slide rail will be affected, even the function will be lost, and finally the seat cannot be adjusted. In view of the foregoing, it is necessary to make reasonable improvements, and the technical scheme to be introduced below is generated in this background. Content of the utility model

[0005] The primary task of the present utility model is to provide a high-strength electric slide rail for an automobile seat, which helps to achieve good rigidity and excellent strength of the static slide rail, avoids deformation and damage under external force, and helps to achieve straightness of the moving slide rail, thereby ensuring stability of the seat, avoiding abnormal noise and aggravating wear.

[0006] Another task of the utility model lies in providing a high-strength electric slide rail for automobile seat which is beneficial to fully reflect reliable and durable fixing effect between static slide rail and automobile bottom plate, avoid static slide rail loosening and damage in use process and cause seat fixing failure, and is beneficial to abandon structure form of fixing screw rod left and right supporting seat and automobile bottom plate, avoid bolt hole deformation or collapse damage on screw rod seat due to various factors in use process and finally affect shaking of screw rod left and right supporting seat.

[0007] Still another task of the utility model lies in providing a high-strength electric slide rail for automobile seat which is beneficial to significantly reduce sliding fit clearance between dynamic slide rail and static slide rail, guarantee stability of seat and comfort of occupant.

[0008] Still another task of the utility model lies in providing a high-strength electric slide rail for automobile seat which is beneficial to eliminate Y and Z direction clearance of dynamic and static slide rails, and reflect excellent clearance elimination effect.

[0009] Still another task of the utility model lies in providing a high-strength electric slide rail for automobile seat which is beneficial to shield chair seat basin connecting plate sliding groove on the upper surface of static slide rail, prevent outside dust from invading static slide rail cavity, and guarantee excellent transmission fit effect between worm gear box of structure system of dynamic slide rail automatic displacement driving mechanism and screw rod in static slide rail cavity.

[0010] In order to achieve the primary task of the utility model, the utility model provides a technical scheme of a high-strength electric slide rail for automobile seat, which comprises a static slide rail, a dynamic slide rail, a chair seat basin connecting plate, a screw rod, a dynamic slide rail automatic displacement driving mechanism, and a worm gear box.

[0011] In a specific embodiment of the utility model, the static slide rail includes static slide rail cavity construction bottom wall, static slide rail cavity construction front side wall, static slide rail cavity construction rear side wall, static slide rail cavity construction first top wall and static slide rail cavity construction second top wall that construct the static slide rail cavity, static slide rail cavity construction front side wall and static slide rail cavity construction rear side wall are directly formed in the length direction front and rear side of static slide rail cavity construction bottom wall with each other front and rear parallel state respectively and are perpendicular with the front and rear side of static slide rail cavity construction bottom wall respectively, static slide rail cavity construction first, second top wall is directly formed in the length direction upper portion of static slide rail cavity construction front, rear side wall with horizontal state respectively, the static slide rail that the static slide rail cavity construction bottom wall, static slide rail cavity construction front, rear side wall and static slide rail cavity construction first, second top wall jointly constitute is the integral profile type structure of the whole, the dynamic slide rail and static slide rail cavity construction first, second top wall constitute sliding pair.

[0012] In another specific embodiment of the utility model, between the left end and the right end of the static slide rail cavity construction front and rear side wall, a static slide rail cavity end shielding reinforcing mechanism is arranged for closing the left cavity opening and the right cavity opening of the static slide rail cavity and simultaneously reinforcing and connecting the left end and the right end of the static slide rail cavity construction front and rear side wall. The static slide rail cavity end shielding reinforcing mechanism includes a reinforcing plate, a cavity opening shielding plate, a reinforcing plate positioning shaft, and a top wall end insertion nest. The reinforcing plate is arranged in the static slide rail cavity and located at the cavity opening position of the static slide rail cavity. A reinforcing plate folded edge is folded towards the front end and the rear end of the side of the reinforcing plate facing the static slide rail cavity. A reinforcing plate positioning shaft through hole is formed in the reinforcing plate folded edge. The cavity opening shielding plate is in contact with the cavity opening position of the static slide rail cavity. A cavity opening shielding plate fixing ear is folded towards the front end and the rear end of the side of the cavity opening shielding plate facing the reinforcing plate. A cavity opening shielding plate fixing ear shaft through hole is formed in the cavity opening shielding plate fixing ear. The cavity opening shielding plate fixing ear is inserted into the cavity opening position of the static slide rail cavity. The cavity opening shielding plate fixing ear coincides with the side of the reinforcing plate folded edge facing away from the static slide rail cavity, and the cavity opening shielding plate fixing ear shaft through hole corresponds to the reinforcing plate positioning shaft through hole. The reinforcing plate positioning shaft passes through the static slide rail cavity construction rear side wall positioning shaft hole formed in the static slide rail cavity construction rear side wall and corresponding to the cavity opening shielding plate fixing ear shaft through hole, the reinforcing plate positioning shaft through hole, and the static slide rail cavity construction front side wall positioning shaft hole formed in the static slide rail cavity construction front side wall corresponding to the cavity opening shielding plate fixing ear shaft through hole in sequence, and is fixed between the static slide rail cavity construction front and rear side walls. The top wall end insertion nest is inserted into the end of the static slide rail cavity construction first top wall and the static slide rail cavity construction second top wall.

[0013] In still another specific embodiment of the utility model, the first top wall of the static slide rail cavity and the front side wall of the static slide rail cavity form a T-shaped cross section, the second top wall of the static slide rail cavity and the rear side wall of the static slide rail cavity form a T-shaped cross section, and the top surfaces of the first and second top walls are on the same horizontal plane.

[0014] In still another specific embodiment of the utility model, a motor accommodating cavity is formed in the middle of the length direction of the chair seat basin connecting plate, a motor base fixing plate is fixed below the position corresponding to the motor accommodating cavity, a motor shaft sleeve matching hole is formed in the middle of the motor base fixing plate, a chair seat basin connecting nut base is fixed at the left end and the right end of the chair seat basin connecting plate; a worm gear box embedding cavity is formed in the middle of the length direction of the movable slide rail and at the position corresponding to the motor shaft sleeve matching hole, embedding protrusions are formed at intervals in the lower part of the chair seat basin connecting plate, and the embedding protrusions are inserted and fixed in the embedding protrusion cavities formed in the movable slide rail; the movable slide rail automatic displacement driving mechanism is sequentially matched with the motor base fixing plate, the worm gear box embedding cavity and the middle part of the screw rod from top to bottom.

[0015] In still another specific embodiment of the utility model, the movable slide rail automatic displacement driving mechanism comprises a motor, a motor shaft sleeve and a worm gear box, the motor is fixed on the upward side of the motor base with the motor shaft downward, the motor shaft of the motor extends below the motor base, the motor base is fixed on the upward side of the motor base fixing plate through motor base fixing screws, the motor shaft sleeve is embedded in the motor base fixing plate at the position corresponding to the motor shaft sleeve matching hole, the motor shaft extends below the motor shaft sleeve hole formed in the middle of the motor shaft sleeve at the position corresponding to the motor shaft sleeve hole and is inserted into the worm gear box at the position corresponding to the worm hole of the worm gear box to be connected with the worm in the worm gear box, the worm drives the worm wheel in the worm gear box to move on the screw rod, the worm gear box is arranged on the worm gear box base and is embedded in the worm gear box embedding cavity together with the worm gear box; wherein motor shaft sleeve expansion wing embedding cavities are formed on the hole walls on the left and right sides of the motor shaft sleeve matching hole and at corresponding positions, a pair of motor shaft sleeve expansion wings corresponding to each other and separated by a expansion wing groove are formed at the left end and the right end of the motor shaft sleeve, the pair of motor shaft sleeve expansion wings are embedded in the motor shaft sleeve expansion wing embedding cavities, and the expansion wing groove is embedded in the embedding protrusion; the motor is a direct current brushless motor with forward and reverse rotation functions.

[0016] To embody another task of completing the utility model, the technical scheme provided by the utility model is that a screw rod seat left supporting cover plate is riveted to the upper side of the left end of the static slide rail cavity construction bottom wall through a group of left rivets, and a screw rod seat right supporting cover plate is riveted to the upper side of the right end of the static slide rail cavity construction bottom wall through a group of right rivets, the left end of the screw rod is supported on the screw rod left supporting seat and is locked by the screw rod left end locking screw that is screwed on the screw rod left supporting seat, the right end of the screw rod is supported on the screw rod right supporting seat, the right end of the screw rod is limited by the screw rod end limiting nut on the right side of the screw rod right supporting seat, the screw rod left supporting seat is welded on the screw rod seat left supporting cover plate, and the screw rod right supporting seat is welded on the screw rod seat right supporting cover plate.

[0017] To embody another task of completing the utility model, the technical scheme provided by the utility model is that a screw rod seat left supporting cover plate is riveted to the upper side of the left end of the static slide rail cavity construction bottom wall through a group of left rivets, and a screw rod seat right supporting cover plate is riveted to the upper side of the right end of the static slide rail cavity construction bottom wall through a group of right rivets, the left end of the screw rod is supported on the screw rod left supporting seat and is locked by the screw rod left end locking screw that is screwed on the screw rod left supporting seat, the right end of the screw rod is supported on the screw rod right supporting seat, the right end of the screw rod is limited by the screw rod end limiting nut on the right side of the screw rod right supporting seat, the screw rod left supporting seat is welded on the screw rod seat left supporting cover plate, and the screw rod right supporting seat is welded on the screw rod seat right supporting cover plate.

[0018] To embody another task of the utility model, the utility model provides a technical scheme that a movable sliding rail front folding edge groove with a U-shaped cross section shape is formed by folding and unfolding the front side of the movable sliding rail upward, a movable sliding rail rear folding edge groove with a U-shaped cross section shape is formed by folding and unfolding the rear side of the movable sliding rail upward, a pair of Z-direction gap elimination rollers for eliminating the Z-direction gap between the movable sliding rail and the static sliding rail and constituting a rolling pair with the static sliding rail cavity building bottom wall are arranged at the left end bottom and the right end bottom of the movable sliding rail in a rotating mode, a front gap elimination mechanism is arranged at the left end and the right end of the movable sliding rail front folding edge groove building wall corresponding to the movable sliding rail front folding edge groove, a rear gap elimination mechanism is arranged at the left end and the right end of the movable sliding rail rear folding edge groove building wall corresponding to the movable sliding rail rear folding edge groove, a pair of movable sliding rail guide mechanisms are arranged on the side of the middle part of the movable sliding rail downward, the pair of movable sliding rail guide mechanisms constitute a sliding pair with the screw rod, a roller holder support block front left embedding groove and a roller holder support block front right embedding groove are formed on the left end upper part and the right end upper part of the movable sliding rail front folding edge groove building wall, the front gap elimination mechanism is embedded and arranged on the movable sliding rail front folding edge groove building wall at the positions corresponding to the roller holder support block front left embedding groove and the roller holder support block front right embedding groove, a roller holder support block rear left embedding groove and a roller holder support block rear right embedding groove are formed on the left end upper part and the right end upper part of the movable sliding rail rear folding edge groove building wall, the rear gap elimination mechanism is embedded and arranged on the movable sliding rail rear folding edge groove building wall at the positions corresponding to the roller holder support block rear left embedding groove and the roller holder support block rear right embedding groove, and the structure of the rear gap elimination mechanism is the same as that of the front gap elimination mechanism, the roller holder support block front left embedding groove and the roller holder support block front right embedding groove are separated by a holder front limiting flange, and the roller holder support block rear left embedding groove and the roller holder support block rear right embedding groove are separated by a holder rear limiting flange.The front gap elimination mechanism comprises a roller holder support block, a roller holder and a roller. The hollow cavity in the middle of the roller holder support block is inserted into the front limiting flange of the holder. The left end of the roller holder support block is inserted into the front folding slot structure wall of the moving slide rail at the position corresponding to the front left slot of the roller holder support block. The right end of the roller holder support block is inserted into the front folding slot structure wall of the moving slide rail at the position corresponding to the front right slot of the roller holder support block. The right end of the roller holder support block is provided with a roller support pillow. The roller holder is inserted into the roller holder support block. The left end of the roller holder is supported by the holder reinforcing block formed at the left end of the roller holder support block. The roller support pillow corresponds to the roller holder cavity formed in the middle of the roller holder and is flush with the upper surface of the roller holder cavity. The right end surface of the roller holder is in contact with the right slot wall of the front right slot of the roller holder support block. The roller is arranged in a lying state on the roller support pillow. The left end surface and the right end surface of the roller are respectively blocked by the surfaces of the opposite sides of the holder left flange and the holder right flange of the roller holder. The roller and the front sliding fit gap elimination slot of the moving slide rail form a sliding pair, and the roller eliminates the Y-direction gap between the moving slide rail and the static slide rail. A roller support pillow peak is formed in the middle of the upper surface of the roller support pillow. A roller valley is formed in the middle of the length direction of the roller and around the circumferential direction of the roller. The roller valley cooperates with the roller support pillow peak. Each of the pair of moving slide rail guide mechanisms comprises a sleeve seat fixed plate and a sleeve seat. The sleeve seat fixed plate is welded to the downward side of the moving slide rail. The sleeve seat is fixed to one side of the sleeve seat fixed plate by sleeve seat fixing screws. A sleeve seat screw sliding fit hole is formed in the sleeve seat. The sleeve seat screw sliding fit hole corresponds to the sleeve seat fixed plate screw sliding fit hole formed in the sleeve seat fixed plate. The sleeve seat screw sliding fit hole and the sleeve seat fixed plate screw sliding fit hole are sleeved on the screw and form a sliding pair with the screw.

[0019] To embody the task of completing the utility model, the technical scheme provided by the utility model is that a recessed first dustproof plate plug-in positioning groove extending from the left end to the right end of the first top wall of the static slide rail cavity is formed on one side of the first top wall of the static slide rail cavity facing upward, a recessed second dustproof plate plug-in positioning groove extending from the left end to the right end of the second top wall of the static slide rail cavity is formed on one side of the second top wall of the static slide rail cavity facing upward, a first dustproof plate is plug-in fixed at the position corresponding to the first dustproof plate plug-in positioning groove through the first dustproof plate bottom plug-in rib, and a second dustproof plate is plug-in fixed at the position corresponding to the second dustproof plate plug-in positioning groove through the second dustproof plate bottom plug-in rib, the front side and the rear side of the chair seat basin connecting plate are respectively abutted by the opposite sides of the length direction of the first and second dustproof plates to shield the redundant gap between the chair seat basin connecting plate sliding groove and the chair seat basin connecting plate, the first and second dustproof plates are made of a compliant material, and the compliant material is a rubber plate or a PTFE plate.

[0020] One of the technical effects of the present invention is that, by innovatively constructing the static slide rail as an integral profile structure, it helps to demonstrate the good rigidity and excellent strength of the static slide rail, thus avoiding deformation and damage under external forces. It also helps to demonstrate the straightness of the moving slide rail, thus ensuring the stability of the seat, preventing abnormal noise, and avoiding wear. Secondly, because a screw seat left and right support plate are riveted to the upward-facing side of the left and right ends of the bottom wall of the static slide rail cavity, and the screw left and right support plates are welded to… The left and right support plates of the screw seat facilitate a reliable and durable fixation between the static slide rail and the car floor, while ensuring the stability of the screw's left and right support plates. This prevents seat fixation failure caused by loosening or damage to the static slide rail during use and avoids wobbling of the left and right support plates. Thirdly, because the first and second top walls of the static slide rail cavity are constructed with front and rear backlash elimination mechanisms along their length and facing the static slide rail cavity, respectively... The moving slide rail and the stationary slide rail form a sliding pair with front and rear sliding fit backlash elimination grooves. Because these grooves are significantly smaller than those in prior art, the stability of the seat and the comfort of the occupant are ensured. Fourth, because the Y-direction gap between the moving and stationary slide rails can be eliminated by the front and rear backlash elimination mechanisms, and the Z-direction gap can be eliminated by the Z-direction gap elimination rollers, a comprehensive and excellent backlash elimination effect is achieved. Fifth, because the first and second top wall surfaces are constructed respectively in the stationary slide rail cavity... First and second dustproof plate insertion and positioning slots are provided, and the first and second dustproof plates are respectively inserted and fixed in the first and second dustproof plate insertion and positioning slots. Therefore, the first and second dustproof plates can protect the sliding groove of the chair seat basin connecting plate, thereby preventing external dust and debris from entering the static slide rail cavity and adversely affecting the transmission cooperation between the worm gear box and the screw located in the static slide rail cavity of the automatic displacement drive mechanism of the moving slide rail. In some cases, jamming may even cause the moving slide rail and the chair seat basin connecting plate to lose the front and rear displacement adjustment function in the use state. Attached Figure Description

[0021] Figure 1 This is an assembly structure diagram of an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram showing the left side after assembly;

[0023] Figure 3 for Figure 1 and Figure 2 A schematic diagram of the static slide rail is shown.

[0024] Figure 4 for Figure 1 Enlarged view of part A;

[0025] Figure 5 is a schematic view of the utility model in a use state. DETAILED DESCRIPTION

[0026] In order to make the technical essence and beneficial effects of the utility model more clearly understood, the applicant will make a detailed description in the form of examples below, but the description of the examples is not a limitation on the utility model scheme, and any equivalent transformation only in form but not in substance according to the utility model concept should be regarded as the technical scheme scope of the utility model.

[0027] In the following description, the directional or positional concepts such as up, down, left, right, front, back, inside and outside are all based on the position state of the utility model Figure 1 , and thus cannot be understood as a special limitation on the technical scheme provided by the utility model.

[0028] Please refer to Figure 1 and Figure 2 , which show a static slide rail 1 fixed with a car floor (also called "vehicle compartment floor") in a use state, and a seat pan connecting plate sliding groove 12 is formed on the upper surface of the static slide rail 1 along the length direction of the static slide rail 1 to communicate the static slide rail cavity 11 of the static slide rail 1 with the outside; a dynamic slide rail 2 is shown, which is arranged in the static slide rail cavity 11 and forms a sliding pair with the static slide rail 1; a seat pan connecting plate 3 is shown, which is inserted into the static slide rail cavity 11 at a position corresponding to the seat pan connecting plate sliding groove 12 and connected with the upper part of the dynamic slide rail 2 in the length direction; a screw rod 4 is shown, which is arranged in the static slide rail cavity 11 in a state parallel to the length direction of the static slide rail 1; a dynamic slide rail automatic displacement driving mechanism 5 for driving the dynamic slide rail 2 together with the seat pan connecting plate 3 to move left or right (in a use state, it appears as "forward or backward", the same below) is shown, which is sequentially matched with the seat pan connecting plate 3, the dynamic slide rail 2 and the screw rod 4 from top to bottom.

[0029] As the technical key points of the technical scheme provided by the utility model, that is, the purpose of completing the primary task of the utility model, the static slide rail 1 is of an integral profile structure.

[0030] The profiled structure can be referred to as profiled form. The static slide rail 1 of the profiled form in the automobile seat slide rail has the following advantages: high strength, for example, when the static slide rail 1 is made of high-strength steel by casting or other similar forms, the material strength can reach hundreds of, for example, 800 MPa or even higher, which enables the seat to maintain the sitting posture during the collision and ensures safety; small gap, because the structure of the profiled form of the static slide rail 1 can make the gap small, thereby ensuring the stability and comfort of the seat; good synchronization, the adjustment step such as the minimum adjustment distance unit can meet the space requirements of the occupant to obtain the desired and more comfortable space; time-saving and labor-saving for electric adjustment, because the profiled form of the static slide rail 1 is beneficial to make the dynamic slide rail 2 slide smoothly, keep the adjustment smooth, no jamming, no abnormal sound and other moving states; good straightness, etc. In short, one of the technical effects described in the technical effect column above can be achieved.

[0031] In addition, the applicant needs to explain that the static slide rail 1 in the utility model is also called a lower slide rail or an outer slide rail in the industry, and the dynamic slide rail 2 is also called an upper slide rail or an inner slide rail, so the utility model cannot be limited by the name difference of the technical features. In addition, the material or material of the profiled form of the static slide rail 1 mentioned above does not need to be uniquely limited in the utility model, for example, it can be stainless steel, aluminum alloy, cast iron or other equivalent materials. If the aluminum alloy is used, it can be obtained by casting (casting includes pouring, which is one of the casting methods) or by extruding the aluminum extrusion die. The implicit advantages of this structure are that in use, the actual length of the static slide rail 1 can be cut from the long profile such as 4m-6m.

[0032] Please refer to Figure 3 and in combination with Figure 1 and Figure 2 In the above, the applicant mentioned that the static slide rail 1 is fixed with the automobile floor in the use state, so in order to facilitate the fixation of the static slide rail 1 on the automobile floor, a static slide rail fixing bolt accommodating cavity 19 is formed in the length direction of the static slide rail 1 and at a position corresponding to the chair seat basin connecting plate sliding groove 12, so as to conveniently introduce the static slide rail fixing bolt 18 shown in the static slide rail fixing bolt accommodating cavity 19 from the static slide rail fixing bolt accommodating cavity 19 and fixed with the automobile floor. Figure 1

[0033] ​The aforementioned static slide rail 1 comprises a static slide rail cavity construction bottom wall 13, a static slide rail cavity construction front side wall 14, a static slide rail cavity construction rear side wall 15, a static slide rail cavity construction first top wall 16 and a static slide rail cavity construction second top wall 17 which construct the aforementioned static slide rail cavity 11, the static slide rail cavity construction front side wall 14 and the static slide rail cavity construction rear side wall 15 are respectively directly constructed on the front and rear sides of the length direction of the static slide rail cavity construction bottom wall 13 in a parallel state and are respectively perpendicular to the front and rear side surfaces of the static slide rail cavity construction bottom wall 13, the static slide rail cavity construction first and second top walls 16 and 17 are respectively constructed on the upper parts of the length direction of the static slide rail cavity construction front and rear side walls 14 and 15 in a horizontal state, the aforementioned seat pan connecting plate sliding groove 12 is constructed between the opposite sides of the length direction of the static slide rail cavity construction first and second top walls 16 and 17, the aforementioned static slide rail 1 which is jointly constructed by the static slide rail cavity construction bottom wall 13, the static slide rail cavity construction front and rear side walls 14 and 15 and the static slide rail cavity construction first and second top walls 16 and 17 is of an integral profile type structure; the aforementioned moving slide rail 2 and the aforementioned static slide rail cavity construction first and second top walls 16 and 17 form a sliding pair.

[0034] Please see Figure 2In the left end and the right end between the front and rear side walls 14, 15 before and after the static slide rail cavity construction, a static slide rail cavity end shielding reinforcing mechanism 6 is arranged for closing the left and right cavity openings of the static slide rail cavity 11 and simultaneously reinforcing and connecting the left and right ends of the front and rear side walls 14, 15 before and after the static slide rail cavity construction (also referred to as "connection", the same below), which comprises a reinforcing plate 61, a cavity opening shielding plate 62, a reinforcing plate positioning shaft 63 and a top wall end insertion nest 64. The reinforcing plate 61 is arranged in the static slide rail cavity 11 and located at the cavity opening position of the static slide rail cavity 11. The front end and the rear end of the side of the reinforcing plate 61 facing the static slide rail cavity 11 are respectively folded towards each other to form a reinforcing plate folded edge 611. A reinforcing plate positioning shaft through hole 6111 is formed on the reinforcing plate folded edge 611. The side of the cavity opening shielding plate 62 facing the static slide rail cavity 11 is in contact with the cavity opening position of the static slide rail cavity 11. The front end and the rear end of the side of the cavity opening shielding plate 62 facing the reinforcing plate 61 are respectively folded towards each other to form a cavity opening shielding plate fixing ear 621. A cavity opening shielding plate fixing ear shaft through hole 6211 is formed on the cavity opening shielding plate fixing ear 621. The cavity opening shielding plate fixing ear 621 is inserted into the cavity opening position of the static slide rail cavity 11. The side of the cavity opening shielding plate fixing ear 621 opposite to the side of the reinforcing plate folded edge 611 facing the static slide rail cavity 11 coincides with the reinforcing plate folded edge 611 and the cavity opening shielding plate fixing ear shaft through hole 6211 corresponds to the reinforcing plate positioning shaft through hole 6111. The reinforcing plate positioning shaft 63 passes through the static slide rail cavity construction rear side wall positioning shaft hole 151 formed on the static slide rail cavity construction rear side wall 15 and corresponding to the cavity opening shielding plate fixing ear shaft through hole 6211, the cavity opening shielding plate fixing ear shaft through hole 6211, the reinforcing plate positioning shaft through hole 6111 in sequence and is fixed between the front and rear side walls 14, 15 after passing through the static slide rail cavity construction front side wall positioning shaft hole 141 formed on the static slide rail cavity construction front side wall 14 and corresponding to the cavity opening shielding plate fixing ear shaft through hole 6211. The top wall end insertion nest 64 is inserted into the end of the static slide rail cavity construction first top wall 16 and the static slide rail cavity construction second top wall 17.

[0035] Continuing to see Figure 1 By the Figure 1 As shown, the static slide rail cavity construction first top wall 16 and the static slide rail cavity construction front side wall 14 form a T-shaped cross-sectional shape relationship with each other, the static slide rail cavity construction second top wall 17 and the static slide rail cavity construction rear side wall 15 form a T-shaped cross-sectional shape relationship with each other, and the top surfaces of the static slide rail cavity construction first and second top walls 16, 17 are in the same horizontal plane. The above structure is exactly the manifestation of the profile structure.

[0036] Still see Figure 1 And in combination Figure 2In the middle of the length direction of the seat pan connecting plate 3, a motor accommodating cavity 31 is formed, a motor base fixing plate 311 is fixed below the position corresponding to the motor accommodating cavity 31, a motor shaft sleeve matching hole 3111 is formed in the middle of the motor base fixing plate 311, a seat pan connecting nut base 32 is fixed at the left end and the right end of the seat pan connecting plate 3, and the seat pan of the automobile seat is connected with the seat pan connecting nut base 32 in use; in the middle of the length direction of the movable slide rail 2 and at the position corresponding to the motor shaft sleeve matching hole 3111, a worm gear box embedding cavity 24 is formed, and a embedding protrusion 33 is formed in the lower part of the seat pan connecting plate 3, which is inserted and fixed with the embedding protrusion cavity 26 formed on the movable slide rail 2; the movable slide rail automatic displacement driving mechanism 5 is matched with the motor base fixing plate 311, the worm gear box embedding cavity 24 and the middle part of the screw rod 4 from top to bottom.

[0037] The movable slide rail automatic displacement driving mechanism 5 includes a motor 51, a motor shaft sleeve 52 and a worm gear box 53, the motor 51 is fixed on the upward side of the motor base 512 with the motor shaft 511 downward, the motor shaft 511 of the motor 51 extends below the motor base 512, the motor base 512 is fixed on the upward side of the motor base fixing plate 311 by the motor base fixing screw 5121, the motor shaft sleeve 52 is embedded with the motor base fixing plate 311 at the position corresponding to the motor shaft sleeve matching hole 3111, the motor shaft 511 extends below the motor shaft sleeve hole 521 formed in the middle of the motor shaft sleeve 52 and is inserted into the worm gear box 53 at the position corresponding to the worm hole 531 of the worm gear box 53 to connect with the worm in the worm gear box 53, the worm drives the worm wheel in the worm gear box 53 to move on the screw rod 4, the worm gear box 53 is arranged on the worm gear box base 532 and is embedded with the worm gear box 53 and the worm gear box embedding cavity 24; wherein a motor shaft sleeve expansion wing embedding cavity 31111 is formed on the hole wall on the left and right sides of the motor shaft sleeve matching hole 3111 and at the corresponding positions, a pair of motor shaft sleeve expansion wings 522 are formed at the left end and the right end of the motor shaft sleeve 52, which are corresponding to each other and are separated by an expansion wing groove 5221, the pair of motor shaft sleeve expansion wings 522 are embedded with the motor shaft sleeve expansion wing embedding cavity 31111, and the expansion wing groove 5221 is embedded with the embedding protrusion 33; in this embodiment, the motor 51 is a direct current brushless motor with forward and reverse rotation function.

[0038] A screw rod left supporting cover plate 131 is riveted to the left end of the upper side of the static slide rail cavity construction bottom wall 13 through a set of left rivets 1311, and a screw rod right supporting cover plate 132 is riveted to the right end of the upper side of the static slide rail cavity construction bottom wall 13 through a set of right rivets 1321, the left end of the screw rod 4 is supported on the screw rod left supporting seat 41 and locked by the screw rod left end locking screw 43 screwed on the screw rod left supporting seat 41, the right end of the screw rod 4 is supported on the screw rod right supporting seat 42, the right end of the screw rod 4 is limited by the screw rod end limiting nut 44 on the right side of the screw rod right supporting seat 42, the screw rod left supporting seat 41 is welded on the screw rod seat left supporting cover plate 131, and the screw rod right supporting seat 42 is welded on the screw rod seat right supporting cover plate 132. The structure provided by the utility model realizes the second technical effect recorded in the technical effect column of the applicant. In the prior art before the utility model is proposed, the screw rod left and right supporting seats 41 and 42 are fixed to the bottom (bottom wall) of the static slide rail 1 in the static slide rail cavity 11 by bolts. This fixing method is point selection type fixing. The utility model welds the screw rod left and right supporting seats 41 and 42 to the screw rod seat left and right supporting cover plates 131 and 132 respectively. This fixing method is four-around omnibearing type fixing, and the bolts are abandoned. The bolt holes on the screw rod seat will not be deformed or collapsed due to various factors in the use process, so that the reliable and durable fixing effect of the screw rod left and right supporting seats 41 and 42 can be ensured, and shaking does not occur.

[0039] As shown in Figure 3 As a preferred scheme, in order to avoid interference in the assembly process, a screw rod supporting seat installation accommodation cavity 163 is formed at the left end and the right end of the static slide rail cavity construction first top wall 16 and at positions respectively corresponding to the screw rod left and right supporting seats 41 and 42.

[0040] As shown in Figure 1 and Figure 2As shown, the first top wall 16 of the static slide rail cavity is provided with a front slide rail sliding fit clearance groove 161 extending from the left end to the right end of the length direction of the first top wall 16 of the static slide rail cavity on the side facing the static slide rail cavity 11 and above the front side corresponding to the screw rod 4 (obliquely above the front side), and the second top wall 17 of the static slide rail cavity is provided with a rear slide rail sliding fit clearance groove 171 extending from the left end to the right end of the length direction of the second top wall 17 of the static slide rail cavity and parallel to the front slide rail sliding fit clearance groove 161 on the side facing the static slide rail cavity 11 and above the rear side corresponding to the screw rod 4 (obliquely above the rear side), the front side of the length direction of the movable slide rail 2 is in sliding pair with the first top wall 16 of the static slide rail cavity at the position corresponding to the front slide rail sliding fit clearance groove 161, and the rear side of the length direction of the movable slide rail 2 is in sliding pair with the second top wall 17 of the static slide rail cavity at the position corresponding to the rear slide rail sliding fit clearance groove 171. The structure provided by the present application can truly reflect the third technical effect recorded in the above technical effect column.

[0041] Continuing to see Figure 1 and Figure 2 The front side of the movable slide rail 2 is folded upward to form a movable slide rail front folded edge groove 21 with a U-shaped cross-sectional shape, the rear side of the movable slide rail 2 is folded upward to form a movable slide rail rear folded edge groove 22 also with a U-shaped cross-sectional shape, a pair of Z-direction gap elimination rollers 23 for eliminating the Z-direction gap between the movable slide rail 2 and the static slide rail 1 and in rolling pair with the bottom wall 13 of the static slide rail cavity are rotatably arranged at the left end bottom and the right end bottom of the movable slide rail 2; a front gap elimination mechanism 7 is inserted and embedded at the left end and the right end of the movable slide rail front folded edge groove forming wall 211 corresponding to the movable slide rail front folded edge groove 21, and a rear gap elimination mechanism 10 is inserted and embedded at the left end and the right end of the movable slide rail rear folded edge groove forming wall 221 corresponding to the movable slide rail rear folded edge groove 22; a pair of movable slide rail guide mechanisms 8 spaced apart from each other are arranged on the side facing downward in the middle of the movable slide rail 2, and the pair of movable slide rail guide mechanisms 8 are in sliding pair with the screw rod 4.

[0042] See Figure 4 and in combination Figure 1 and Figure 2On the upper left end and the upper right end of the front folding slot construction wall 211 of the movable slide rail, a roller holder support block front left slot 2111 and a roller holder support block front right slot 2112 are formed respectively, and the front anti-backlash mechanism 7 is inserted and fitted on the front folding slot construction wall 211 at positions corresponding to the roller holder support block front left slot 2111 and the roller holder support block front right slot 2112. On the upper left end and the upper right end of the rear folding slot construction wall 221 of the movable slide rail, a roller holder support block rear left slot 2211 and a roller holder support block rear right slot 2212 are formed respectively, and the rear anti-backlash mechanism 10 is inserted and fitted on the rear folding slot construction wall 221 at positions corresponding to the roller holder support block rear left slot 2211 and the roller holder support block rear right slot 2212, and the structure of the rear anti-backlash mechanism 10 is the same as that of the front anti-backlash mechanism 7.

[0043] The roller holder support block front left slot 2111 and the roller holder support block front right slot 2112 are separated by a holder front limiting flange 2113, and the roller holder support block rear left slot 2211 and the roller holder support block rear right slot 2212 are separated by a holder rear limiting flange 2213.

[0044] As described above, since the structure of the rear anti-backlash mechanism 10 is the same as that of the front anti-backlash mechanism 7, the following will be focused on the rear anti-backlash mechanism 10. Figure 4Only the front backlash elimination mechanism 7 will be described in detail. This front backlash elimination mechanism 7 includes a roller retainer support block 71, a roller retainer 72, and a roller 73. The hollow cavity 712 in the middle of the roller retainer support block 71 is inserted into the aforementioned retainer front limiting flange 2113. The left end of the roller retainer support block 71, corresponding to the aforementioned roller retainer support block front left groove 2111, is inserted into the aforementioned moving slide rail front folded edge groove construction wall 211. The right end of the roller retainer support block 71, corresponding to the roller... The position of the front right groove 2112 of the retainer support block is inserted into the front flange groove of the moving slide rail. A roller support pillow 711 is formed on the upper right end of the roller retainer support block 71. The roller retainer 72 is inserted into the roller retainer support block 71, and the left end of the roller retainer 72 is supported by a retainer reinforcement block 713 formed on the left end of the roller retainer support block 711. The aforementioned roller support pillow 711 and the middle part of the roller retainer 72... The roller retainer cavity 721 corresponds to and is flush with the upper surface of the roller retainer cavity 721. The right end face of the roller retainer 72 is in contact with the right groove wall 21121 of the aforementioned right groove 2112 of the front right recess of the roller retainer support block. The roller 73 is horizontally mounted on the roller support pillow 711, and the left and right end faces of the roller 73 are respectively protected by the opposing surfaces of the left flange 722 and the right flange 723 of the roller retainer 72. The aforementioned roller 73 and the aforementioned sliding groove 161 in front of the moving slide rail form a sliding pair, and the roller 73 eliminates the Y-direction gap between the moving slide rail 2 and the stationary slide rail 1; a roller support pillow peak 7111 is formed in the middle region of the upper surface of the aforementioned roller support pillow 711, and a roller valley 731 is formed in the middle of the length direction of the aforementioned roller 73 and around the circumference of the roller 73, and the roller valley 731 cooperates with the aforementioned roller support pillow peak 7111.

[0045] Depend on Figure 1 As shown, each of the aforementioned pair of movable slide rail guide mechanisms 8 includes a sliding sleeve seat fixing plate 81 and a sliding sleeve seat 82. The sliding sleeve seat fixing plate 81 is welded to the downward-facing side of the aforementioned movable slide rail 2. The sliding sleeve seat 82 is fixed to one side of the sliding sleeve seat fixing plate 81 by a sliding sleeve seat fixing screw 822. A sliding sleeve seat screw sliding hole 821 is formed on the sliding sleeve seat 82. The sliding sleeve seat screw sliding hole 821 corresponds to the sliding sleeve seat fixing plate screw sliding hole 811 opened on the sliding sleeve seat fixing plate 81. The sliding sleeve seat screw sliding hole 821 and the sliding sleeve seat fixing plate screw sliding hole 811 are together sleeved on the aforementioned screw 4 and form a sliding pair with the screw 4.

[0046] The roller 73 of the structure system of the front anti-clearance mechanism 7 is essentially a micro roller that is adapted to the front anti-clearance groove 161 of the front sliding cooperation of the moving slide rail. Similarly, the corresponding rear roller of the structure system of the rear anti-clearance mechanism 10, which is equivalent to the roller 73, is essentially a micro roller that is adapted to the rear anti-clearance groove 171 of the rear sliding cooperation of the moving slide rail.

[0047] It is undeniable that the front and rear anti-clearance mechanisms 7, 10, respectively, and the front and rear sliding cooperation anti-clearance grooves 161, 171 of the moving slide rail play an excellent role in eliminating the Y-direction clearance between the moving and static slide rails 2, 1, and the Z-direction clearance eliminating roller 23 plays a good role in eliminating the Z-direction clearance between the moving and static slide rails 2, 1, thereby truly realizing the fourth technical effect recorded in the technical effect column above by the applicant.

[0048] Please continue to see Figure 1 On the upward side of the first top wall 16 of the static slide rail cavity structure, there is a recessed first dust plate plug-in positioning groove 162 extending from the left end to the right end of the first top wall 16 of the static slide rail cavity structure, and on the upward side of the second top wall 17 of the static slide rail cavity structure, there is a recessed second dust plate plug-in positioning groove 172 extending from the left end to the right end of the second top wall 17 of the static slide rail cavity structure. A first dust plate 1621 is inserted and fixed by a first dust plate bottom plug-in rib 16211 at a position corresponding to the first dust plate plug-in positioning groove 162, and a second dust plate 1721 is inserted and fixed by a second dust plate bottom plug-in rib 17211 at a position corresponding to the second dust plate plug-in positioning groove 172. The lengthwise opposite sides of the first and second dust plates 1621, 1721 respectively contact the front and rear sides of the seat pan connecting plate 3 to shield the redundant gap between the seat pan connecting plate sliding groove 12 and the seat pan connecting plate 3.

[0049] In this embodiment, the first and second dust plates 1621, 1721 are made of a compliant material, and the compliant material is a rubber plate, but PTFE (polytetrafluoroethylene) plate or other equivalent plates can also be used.

[0050] The present application can objectively realize the fifth technical effect recorded in the technical effect column above by using the first and second dust plates 1621, 1721.

[0051] Please see Figure 5 According to professional knowledge, as an automobile seat, it is necessary to be equipped with two, i.e. a pair of Figure 5The high-strength electric slide rail for car seats shown in this utility model, and the motor 51 of the automatic displacement drive mechanism 5 of the moving slide rail in the two-pair high-strength electric slide rail system are both controlled by ECU (electronic control unit), ensuring that the two motors work synchronously and in the same direction.

[0052] by Figure 1 Taking the position shown as an example, when the passenger operates a button located on the side or bottom of the car seat or in another reasonable location, the seat will automatically move forward or backward. Figure 1 The indicated state is moving left or right.

[0053] Now Figure 1 Taking the rightward movement as an example, under the operation of motor 51, the motor shaft 511 drives the worm of worm gearbox 53, which in turn drives the worm wheel. Since the worm wheel cooperates with screw 4, worm gearbox 53 moves to the right along screw 4. Because worm gearbox 53 is fitted and connected to moving slide rail 2 at the position corresponding to the worm gearbox cavity 24 on moving slide rail 2, and because the aforementioned seat basin connecting plate 3 is fixed to the cavity 26 of the embedded protrusion formed on moving slide rail 2 by the embedded protrusion 33 at its lower end, when worm gearbox 53 moves to the right along screw 4, moving slide rail 2, along with seat basin connecting plate 3 and motor 51 which is mounted on seat basin connecting plate 3, also move synchronously, thereby driving the seat basin of the car seat to move along with the seat. Since the leftward movement process is the same as described above, only the motor works in the opposite direction, the applicant will not elaborate further.

[0054] During the movement of the aforementioned sliding rail 2 to the right or left, the two front clearance elimination mechanisms 7 and the two rear clearance elimination mechanisms 10 eliminate the clearance mentioned above, that is, eliminate the Y-direction clearance. At the same time, the Z-direction clearance elimination roller 23 eliminates the Z-direction clearance. It should be noted that the Z-direction and Y-direction mentioned in this application are based on the directions on the vehicle under actual use.

[0055] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and fully realizes one to five of the technical effects recorded by the applicant in the above technical effect column.

Claims

1. A high-strength electric slide rail for a car seat, comprising a static slide rail (1) fixed to the floor of a car in use, and a seat pan connecting plate sliding groove (12) formed on the upper surface of the static slide rail (1) along the length direction of the static slide rail (1) to allow the static slide rail cavity (11) of the static slide rail (1) to communicate with the outside; a dynamic slide rail (2) arranged in the static slide rail cavity (11) and forming a sliding pair with the static slide rail (1); a seat pan connecting plate (3) inserted into the static slide rail cavity (11) at a position corresponding to the seat pan connecting plate sliding groove (12) and connected to the upper part of the dynamic slide rail (2) in the length direction; a screw rod (4) arranged in the static slide rail cavity (11) in parallel with the length direction of the static slide rail (1); and a dynamic slide rail automatic displacement driving mechanism (5) for driving the dynamic slide rail (2) to move left or right together with the seat pan connecting plate (3), the dynamic slide rail automatic displacement driving mechanism (5) being sequentially matched with the seat pan connecting plate (3), the dynamic slide rail (2) and the screw rod (4) from top to bottom, characterized in that: The static slide rail (1) is a whole profile structure.

2. The high-strength electric slide rail for an automobile seat according to claim 1, characterized by: The static slide rail (1) comprises a static slide rail cavity construction bottom wall (13), a static slide rail cavity construction front side wall (14), a static slide rail cavity construction back side wall (15), a static slide rail cavity construction first top wall (16) and a static slide rail cavity construction second top wall (17) which construct the static slide rail cavity (11), the static slide rail cavity construction front side wall (14) and the static slide rail cavity construction back side wall (15) are directly constructed on the front and back sides of the length direction of the static slide rail cavity construction bottom wall (13) in a parallel state and are perpendicular to the front and back sides of the static slide rail cavity construction bottom wall (13) respectively, the static slide rail cavity construction first and second top walls (16, 17) are constructed on the upper parts of the length direction of the static slide rail cavity construction front and back side walls (14, 15) in a horizontal state respectively, the chair seat basin connecting plate sliding groove (12) is constructed between the opposite sides of the length direction of the static slide rail cavity construction first and second top walls (16, 17), the static slide rail (1) which is composed of the static slide rail cavity construction bottom wall (13), the static slide rail cavity construction front and back side walls (14, 15) and the static slide rail cavity construction first and second top walls (16, 17) is the whole profile structure, the dynamic slide rail (2) and the static slide rail cavity construction first and second top walls (16, 17) form a sliding pair.

3. The high-strength motorized slide for an automotive seat according to claim 2, characterized in that: The left end and the right end of the front and rear side walls (14, 15) of the static slide rail cavity are respectively provided with a static slide rail cavity end shielding reinforcing mechanism (6) for closing the left and right cavity openings of the static slide rail cavity (11) and simultaneously reinforcing and connecting the left end and the right end of the front and rear side walls (14, 15) of the static slide rail cavity. The static slide rail cavity end shielding reinforcing mechanism (6) comprises a reinforcing plate (61), a cavity opening shielding plate (62), a reinforcing plate positioning shaft (63) and a top wall end insertion nest (64). The reinforcing plate (61) is arranged in the static slide rail cavity (11) and located at the cavity opening position of the static slide rail cavity (11). The front end and the rear end of the side of the reinforcing plate (61) facing the static slide rail cavity (11) are respectively folded towards each other to form a reinforcing plate folded edge (611). A reinforcing plate positioning shaft through hole (6111) is formed in the reinforcing plate folded edge (611). The cavity opening shielding plate (62) is in contact with the cavity opening position of the static slide rail cavity (11). The front end and the rear end of the side of the cavity opening shielding plate (62) facing the reinforcing plate (61) are respectively folded towards each other to form a cavity opening shielding plate fixing ear (621). A cavity opening shielding plate fixing ear shaft through hole (6211) is formed in the cavity opening shielding plate fixing ear (621). The cavity opening shielding plate fixing ear (621) is inserted into the cavity opening position of the static slide rail cavity (11). The cavity opening shielding plate fixing ear (621) coincides with the side of the reinforcing plate folded edge (611) away from the static slide rail cavity (11) and the cavity opening shielding plate fixing ear shaft through hole (6211) corresponds to the reinforcing plate positioning shaft through hole (6111). The reinforcing plate positioning shaft (63) passes through the static slide rail cavity construction rear side wall positioning shaft hole (151) formed in the static slide rail cavity construction rear side wall (15) and corresponding to the cavity opening shielding plate fixing ear shaft through hole (6211), the cavity opening shielding plate fixing ear shaft through hole (6211), the reinforcing plate positioning shaft through hole (6111) and the static slide rail cavity construction front side wall positioning shaft hole (141) formed in the static slide rail cavity construction front side wall (14) and also corresponding to the cavity opening shielding plate fixing ear shaft through hole (6211) in sequence and is fixed between the static slide rail cavity construction front and rear side walls (14, 15). The top wall end insertion nest (64) is inserted into the ends of the static slide rail cavity construction first top wall (16) and the static slide rail cavity construction second top wall (17).

4. The high-strength motorized slide for an automobile seat according to claim 2 or 3, characterized in that: The static slide rail cavity construction first top wall (16) and the static slide rail cavity construction front side wall (14) form a T-shaped cross-sectional shape relationship with each other. The static slide rail cavity construction second top wall (17) and the static slide rail cavity construction rear side wall (15) form a T-shaped cross-sectional shape relationship with each other. The top surfaces of the static slide rail cavity construction first and second top walls (16, 17) are in the same horizontal plane.

5. The high-strength motorized slide for an automotive seat according to claim 4, characterized in that: The length direction middle part of the chair seat basin connecting plate (3) is provided with a motor accommodating cavity (31), the lower side of the motor accommodating cavity (31) is fixed with a motor base fixing plate (311), the middle part of the motor base fixing plate (311) is provided with a motor shaft sleeve matching hole (3111), the left end and the right end of the chair seat basin connecting plate (3) are respectively fixed with a chair seat basin connecting nut base (32); the length direction middle part of the movable slide rail (2) is provided with a worm gear box embedding cavity (24) corresponding to the motor shaft sleeve matching hole (3111), the lower part of the chair seat basin connecting plate (3) is provided with an embedding protrusion (33), the embedding protrusion (33) is inserted and fixed with the embedding protrusion cavity (26) provided on the movable slide rail (2); the movable slide rail automatic displacement driving mechanism (5) is sequentially matched with the motor base fixing plate (311), the worm gear box embedding cavity (24) and the middle part of the screw rod (4) from top to bottom.

6. The high-strength motorized slide for an automotive seat according to claim 5, characterized in that: The movable slide rail automatic displacement driving mechanism (5) comprises a motor (51), a motor shaft sleeve (52) and a worm gear box (53), the motor (51) is fixed on the upper side of the motor base (512) with the motor shaft (511) downward, the motor shaft (511) of the motor (51) extends below the motor base (512), the motor base (512) is fixed on the upper side of the motor base fixing plate (311) through a motor base fixing screw (5121), the motor shaft sleeve (52) is embedded with the motor base fixing plate (311) corresponding to the motor shaft sleeve matching hole (3111), the motor shaft (511) extends below the motor shaft sleeve hole (521) corresponding to the motor shaft sleeve hole (521) provided in the middle part of the motor shaft sleeve (52) and is inserted into the worm gear box (53) corresponding to the worm gear hole (531) provided on the worm gear box (53) to connect with the worm gear in the worm gear box (53), the worm gear drives the worm wheel in the worm gear box (53) to move on the screw rod (4), the worm gear box (53) is arranged on the worm gear box base (532) and is embedded with the worm gear box embedding cavity (24) together with the worm gear box (53); the left and right sides of the motor shaft sleeve matching hole (3111) are respectively provided with a motor shaft sleeve expansion wing embedding cavity (31111) corresponding to each other, the left end and the right end of the motor shaft sleeve (52) are respectively provided with a pair of motor shaft sleeve expansion wings (522) corresponding to each other and separated by an expansion wing groove (5221), the pair of motor shaft sleeve expansion wings (522) are embedded with the motor shaft sleeve expansion wing embedding cavity (31111), and the expansion wing groove (5221) is embedded with the embedding protrusion (33); the motor (51) is a direct current brushless motor with forward and reverse rotation functions.

7. The high-strength motorized slide for an automobile seat according to claim 2, characterized by: A screw rod left supporting cover plate (131) is riveted to the left end of the upper side of the static slide rail cavity construction bottom wall (13) through a group of left rivets (1311), and a screw rod right supporting cover plate (132) is riveted to the right end of the upper side of the static slide rail cavity construction bottom wall (13) through a group of right rivets (1321), the left end of the screw rod (4) is supported on the screw rod left supporting seat (41) and locked by the screw rod left end locking screw (43) screwed on the screw rod left supporting seat (41), the right end of the screw rod (4) is supported on the screw rod right supporting seat (42), the right end of the screw rod (4) is limited by the screw rod end limiting nut (44) on the right side of the screw rod right supporting seat (42), the screw rod left supporting seat (41) is welded on the screw rod seat left supporting cover plate (131), and the screw rod right supporting seat (42) is welded on the screw rod seat right supporting cover plate (132).

8. The high-strength motorized slide for an automobile seat according to claim 2, characterized by: A movable slide rail front sliding fit clearance groove (161) extending from the left end to the right end of the length direction of the static slide rail cavity construction first top wall (16) is formed on the side of the static slide rail cavity construction first top wall (16) facing the static slide rail cavity (11) and at a position above the front side of the screw rod (4), a movable slide rail rear sliding fit clearance groove (171) extending from the left end to the right end of the length direction of the static slide rail cavity construction second top wall (17) and parallel to the movable slide rail front sliding fit clearance groove (161) is formed on the side of the static slide rail cavity construction second top wall (17) facing the static slide rail cavity (11) and at a position above the rear side of the screw rod (4), the front side of the length direction of the movable slide rail (2) forms a sliding pair with the static slide rail cavity construction first top wall (16) at a position corresponding to the movable slide rail front sliding fit clearance groove (161), and the rear side of the length direction of the movable slide rail (2) forms a sliding pair with the static slide rail cavity construction second top wall (17) at a position corresponding to the movable slide rail rear sliding fit clearance groove (171).

9. The high-strength motorized slide for an automotive seat of claim 2, wherein: In the front side of the movable slide rail (2), a movable slide rail front folded edge groove (21) with a U-shaped cross section is formed by folding upward, in the rear side of the movable slide rail (2), a movable slide rail rear folded edge groove (22) with a U-shaped cross section is formed by folding upward, at the bottom of the left end and the bottom of the right end of the movable slide rail (2), a pair of Z-direction gap elimination rollers (23) for eliminating the Z-direction gap between the movable slide rail (1) and the static slide rail (2) and forming a rolling pair with the static slide rail cavity forming bottom wall (13) are rotatably arranged; at the left end and the right end of the movable slide rail front folded edge groove forming wall (211) corresponding to the movable slide rail front folded edge groove (21), a front gap elimination mechanism (7) is inserted and embedded, and at the left end and the right end of the movable slide rail rear folded edge groove forming wall (221) corresponding to the movable slide rail rear folded edge groove (22), a rear gap elimination mechanism (10) is inserted and embedded; on the downward side of the middle part of the movable slide rail (2), a pair of movable slide rail guide mechanisms (8) are arranged at intervals, which form a sliding pair with the screw rod (4); on the upper left end and the upper right end of the movable slide rail front folded edge groove forming wall (211), a roller holder support block front left embedded groove (2111) and a roller holder support block front right embedded groove (2112) are formed, the front gap elimination mechanism (7) is inserted and embedded on the movable slide rail front folded edge groove forming wall (211) at positions corresponding to the roller holder support block front left embedded groove (2111) and the roller holder support block front right embedded groove (2112); on the upper left end and the upper right end of the movable slide rail rear folded edge groove forming wall (221), a roller holder support block rear left embedded groove (2211) and a roller holder support block rear right embedded groove (2212) are formed, the rear gap elimination mechanism (10) is inserted and embedded on the movable slide rail rear folded edge groove forming wall (221) at positions corresponding to the roller holder support block rear left embedded groove (2211) and the roller holder support block rear right embedded groove (2212), and the structure of the rear gap elimination mechanism (10) is the same as that of the front gap elimination mechanism (7); the roller holder support block front left embedded groove (2111) and the roller holder support block front right embedded groove (2112) are separated by a front holder limiting flange (2113), and the roller holder support block rear left embedded groove (2211) and the roller holder support block rear right embedded groove (2212) are separated by a rear holder limiting flange (2213).The front gap eliminating mechanism (7) comprises a roller holder support block (71), a roller holder (72) and a roller (73), the hollow cavity (712) in the middle part of the roller holder support block (71) is inserted into the front limiting flange (2113), the left end of the roller holder support block (71) is inserted into the front left slot (2111) of the dynamic slide rail, the right end of the roller holder support block (71) is inserted into the front right slot (2112) of the dynamic slide rail, the upper part of the right end of the roller holder support block (71) is provided with a roller support pillow (711), the roller holder (72) is inserted into the roller holder support block (71), the left end of the roller holder (72) is supported by the holder reinforcing block (713) in the left end of the roller holder support block (71), the roller support pillow (711) corresponds to the roller holder cavity (721) in the middle part of the roller holder (72) and is flush with the upper surface of the roller holder cavity (721), the right end surface of the roller holder (72) is in contact with the right slot wall (21121) of the front right slot (2112), the roller (73) is arranged on the roller support pillow (711) in a lying state, the left end surface and the right end surface of the roller (73) are respectively blocked by the surfaces of the opposite sides of the holder left flange (722) and the holder right flange (723) of the roller holder (72), the roller (73) and the front sliding fit gap eliminating slot (161) of the dynamic slide rail form a sliding pair, and the Y-direction gap between the dynamic slide rail (2) and the static slide rail (1) is eliminated by the roller (73); a roller support pillow peak (7111) is formed in the middle area of the upper surface of the roller support pillow (711), a roller valley (731) is formed in the middle of the length direction of the roller (73) and around the circumferential direction of the roller (73), and the roller valley (731) is matched with the roller support pillow peak (7111); each of the pair of dynamic slide rail guide mechanisms (8) comprises a sleeve seat fixed plate (81) and a sleeve seat (82), the sleeve seat fixed plate (81) is welded to the side of the dynamic slide rail (2) facing downwards, the sleeve seat (82) is fixed to one side of the sleeve seat fixed plate (81) by a sleeve seat fixed screw (822), a sleeve seat screw sliding fit hole (821) is formed in the sleeve seat (82), the sleeve seat screw sliding fit hole (821) corresponds to the sleeve seat fixed plate screw sliding fit hole (811) formed in the sleeve seat fixed plate (81), the sleeve seat screw sliding fit hole (821) and the sleeve seat fixed plate screw sliding fit hole (811) are jointly sleeved on the screw (4) and form a sliding pair with the screw (4).

10. The high-strength motorized slide for an automotive seat of claim 2, wherein: In the static slide rail cavity, a first dustproof plate is inserted and fixed in a first dustproof plate insertion and positioning groove (162) which is recessed on the upper side of the first top wall (16) and extends from the left end to the right end of the first top wall (16). A second dustproof plate is inserted and fixed in a second dustproof plate insertion and positioning groove (172) which is recessed on the upper side of the second top wall (17) and extends from the left end to the right end of the second top wall (17). A first dustproof plate (1621) is inserted and fixed by a first dustproof plate bottom insertion rib (16211) at a position corresponding to the first dustproof plate insertion and positioning groove (162). A second dustproof plate (1721) is inserted and fixed by a second dustproof plate bottom insertion rib (17211) at a position corresponding to the second dustproof plate insertion and positioning groove (172). The lengthwise opposite sides of the first and second dustproof plates (1621, 1721) respectively abut against the front side and the rear side of the seat pan connecting plate (3) to shield the redundant gap between the seat pan connecting plate sliding groove (12) and the seat pan connecting plate (3). The first and second dustproof plates (1621, 1721) are made of a flexible material, such as rubber plate or PTFE plate.

Images