High-strength electric sliding rail for automobile seat

Abstract

The invention 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 invention belongs to the technical field of automobile parts, and in particular relates to a high-strength electric slide rail for automobile seats. Background Art

[0002] There is no shortage of technical information on electric slides for car seats in the public Chinese patent documents, such as CN215204537U a high-strength independent electric slide, CN116022040B a sliding mechanism for a car seat slide, CN113320450A an electric slide for a car seat, CN118082637A a new type of horizontal adjustment transmission vehicle seat slide assembly, CN205033973U a front and rear adjustment mechanism for a car seat, CN210416305U a seat slide assembly and CN107087405A a quick adjustment power regulator, etc.

[0003] A typical example is "a high-strength independent electric slide rail and its mounting structure with the vehicle floor" recommended by CN113335150A. This patent application is mainly proposed to address the shortcomings of the prior art such as CN109130967A, an improved electric slide rail system for automobile seats. For specific technical measures, please refer to paragraphs 0008 to 0027 of the specification of CN113335150A, and the specific technical effects can be summarized into the following four points: First, the original independent motor is replaced by two independent synchronous electric drive motors; second, due to the use of two motors, the large-size motor bracket in the seat horizontal adjustment system is naturally abandoned, eliminating the risk of being stepped on by passengers; 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 under the seat and making full use of the Y-direction space (see paragraphs 0030 to 0034 of the patent specification for details).

[0004] After long-term attention and analysis of the electric slide rail structure for automobile seats in the prior art including the patent mentioned above, the applicant believes that the following common drawbacks exist: First, perhaps due to the constraints of traditional design and manufacturing thinking patterns, it is a common practice in the industry to use a plate and a mold to stamp and form the lower slide rail as a static slide rail. Regardless of the complexity of the manufacturing process, it is relatively lacking in strength. However, the lack of strength will affect the occupant's ability to maintain posture during a collision, posing a safety hazard. Since the gap of the stamped slide rail is relatively large, it will affect the stability of the seat and the comfort of the occupant to a certain extent, and the straightness of the moving slide rail is the most difficult to ensure. The lack of straightness will cause the seat to lose stability, produce abnormal noise, aggravate wear, and make adjustment operation inconvenient. For example, it may get stuck or stuck during the adjustment process, or even the movement may be blocked. In addition, after the stamped static slide rail is fixed to the car floor, it is inevitable that it will become loose, damaged, or cause the seat to fail to fix during actual use. Secondly, since the roller mounting seat together with the roller embedded thereon is directly embedded in the mounting seat fitting groove provided on the moving slide rail, also called "sliding bracket", therefore in actual use, that is, when the moving slide rail is adjusted, the roller mounting seat is simultaneously subjected to the dual effects of the force exerted on it by the roller and the reaction force of the embedded edge of the mounting seat fitting groove formed on the moving slide rail or the sliding bracket for the roller mounting seat, which is easy to cause structural damage. The roller mounting seat, which is monotonous and relatively weak in strength, is damaged. Once the roller mounting seat is damaged, the roller loses its support and will get stuck in the gap between the moving and static slide rails, which eventually causes the moving slide rail to lose the adjustment of the seat pan of the car seat, that is, the adjustment function of the car seat is lost. Typical patents involving this technical problem include CN220842279U, a roller gap elimination mechanism for a car seat slide rail; thirdly, due to the lack of dust protection measures on the upper surface of the static slide rail, it is impossible to avoid external dust from entering the static slide rail cavity from the sliding groove of the seat pan connecting plate located on the upper surface of the length direction of the static slide rail for connecting and sliding the seat pan during use, resulting in the blocking of moving parts such as the screw rod set in the static slide rail cavity. In severe cases, the above-mentioned screw rod is contaminated by dust and affects the normal operation of the worm gear box of the structural system of the automatic displacement drive mechanism of the moving slide rail, and even loses its function and finally makes the seat unable to adjust. In view of the above situation, it is necessary to make reasonable improvements. The technical solution to be introduced below is produced under this background. Summary of the invention

[0005] The primary task of the present invention is to provide a high-strength electric slide rail for automobile seats that helps to demonstrate the good rigidity and excellent strength of the static slide rail to avoid deformation and damage under the action of external force, and helps to demonstrate the straightness of the dynamic slide rail to ensure the stability of the seat, avoid abnormal noise and increased wear.

[0006] Another task of the present invention is to provide a high-strength electric slide rail for automobile seats that is conducive to fully realizing the reliable and lasting fixing effect between the static slide rail and the automobile floor, thereby avoiding the loosening and damage of the static slide rail during use and causing the failure of seat fixation, and is conducive to abandoning the structural form of using the left and right screw support seat fixing bolts to fix the left and right screw support seats arranged in the static slide rail cavity to the automobile floor, thereby avoiding the deformation or collapse of the bolt holes on the screw seats due to various factors during use and ultimately affecting the shaking of the left and right screw support seats.

[0007] Another task of the present invention is to provide a high-strength electric slide rail for a car seat, which is beneficial to significantly reduce the sliding fit clearance between the movable slide rail and the static slide rail to ensure the stability of the seat and the comfort of the occupant.

[0008] Another task of the present invention is to provide a high-strength electric slide rail for automobile seats that is easy to eliminate the Y-direction and Z-direction gaps between the dynamic and static slide rails to achieve an excellent gap elimination effect.

[0009] Another task of the present invention is to provide a high-strength electric slide rail for automobile seats, which helps to protect the seat seat basin connecting plate sliding groove located on the upper surface of the static slide rail for sliding of the seat seat basin connecting plate, thereby preventing external dust from invading the static slide rail cavity and ensuring the excellent transmission coordination effect between the worm gear box of the structural system of the automatic displacement drive mechanism of the movable slide rail and the screw located in the static slide rail cavity.

[0010] In order to embody the primary task of completing the present invention, the technical solution provided by the present invention is: a high-strength electric slide rail for automobile seats, comprising a static slide rail, which is fixed to the automobile floor when in use, and a seat seat basin connecting plate sliding groove is formed on the upper surface of the static slide rail along the length direction of the static slide rail for connecting the static slide rail cavity with the outside world; a movable slide rail, which is arranged in the static slide rail cavity and forms a sliding pair with the static slide rail; a seat seat basin connecting plate, which is connected to the seat seat basin corresponding to the seat seat basin. The sliding groove of the basin connecting plate is inserted into the static slide rail cavity and connected to the upper part of the movable slide rail in the length direction; a screw rod is arranged in the static slide rail cavity while maintaining parallelism with the length direction of the static slide rail; an automatic displacement driving mechanism for the movable slide rail is used to drive the movable slide rail together with the seat basin connecting plate to move left or right, and the automatic displacement driving mechanism for the movable slide rail cooperates with the seat basin connecting plate, the movable slide rail and the screw rod in sequence from top to bottom, and is characterized in that: the static slide rail is an integral profile structure.

[0011] In a specific embodiment of the present invention, the static slide rail includes a static slide rail cavity bottom wall, a static slide rail cavity front side wall, a static slide rail cavity rear side wall, a static slide rail cavity first top wall and a static slide rail cavity second top wall constituting the static slide rail cavity, the static slide rail cavity front side wall and the static slide rail cavity rear side wall constituting the static slide rail cavity front side wall and the static slide rail cavity rear side wall are respectively directly formed on the front and rear sides of the length direction of the static slide rail cavity bottom wall in a state of front and rear parallel to each other and are respectively perpendicular to the front and rear side surfaces of the static slide rail cavity bottom wall, the first and second top walls of the static slide rail cavity are respectively formed in a horizontal state at the upper part of the length direction of the front and rear side walls of the static slide rail cavity, the seat basin connecting plate sliding groove is formed between the opposite sides of the length direction of the first and second top walls of the static slide rail cavity, the static slide rail composed of the static slide rail cavity bottom wall, the front and rear side walls of the static slide rail cavity and the first and second top walls of the static slide rail cavity is the integral profile structure; the movable slide rail and the first and second top walls of the static slide rail cavity constitute a sliding pair.

[0012] In another specific embodiment of the present invention, a static slide rail cavity end shielding and reinforcement mechanism is respectively provided between the left end and the right end of the front and rear side walls of the static slide rail cavity structure, which is used to close the left cavity opening and the right cavity opening of the static slide rail cavity and simultaneously reinforce and connect the left end and the right end of the front and rear side walls of the static slide rail cavity structure. The static slide rail cavity end shielding and reinforcement mechanism includes a reinforcement plate, a cavity opening shielding plate, a reinforcement plate positioning shaft and a top wall end insert nest. The reinforcement plate is arranged in the static slide rail cavity and is located at the cavity opening of the static slide rail cavity. A reinforcement plate folding edge is folded toward each other at the front end and the rear end of the reinforcement plate on the side facing the static slide rail cavity. A reinforcement plate positioning shaft passing hole is provided on the reinforcement plate folding edge. The cavity opening shielding plate is in contact with the cavity opening of the static slide rail cavity. A cavity opening shielding plate fixing ear is folded toward each other at the front end and the rear end of the cavity opening shielding plate on the side facing the reinforcement plate. The fixing ear of the cavity shielding plate is provided with a cavity shielding plate fixing ear axis passing hole, and the cavity shielding plate fixing ear is inserted into the cavity mouth of the static slide rail cavity. The cavity shielding plate fixing ear coincides with the side of the folded edge of the reinforcement plate facing away from the static slide rail cavity, and the cavity shielding plate fixing ear axis passing hole corresponds to the reinforcement plate positioning axis passing hole. The reinforcement plate positioning axis sequentially passes through the static slide rail cavity rear side wall positioning axis hole opened on the rear side wall of the static slide rail cavity construction and whose position corresponds to the cavity shielding plate fixing ear axis passing hole, the cavity shielding plate fixing ear axis passing hole, the reinforcement plate positioning axis passing hole, and passes through the static slide rail cavity front side wall positioning axis hole opened on the front side wall of the static slide rail cavity construction and whose position also corresponds to the cavity shielding plate fixing ear axis passing hole, and then is fixed between the front and rear side walls of the static slide rail cavity construction, and the top wall end is inserted and embedded in the first top wall of the static slide rail cavity construction and the end of the second top wall of the static slide rail cavity construction.

[0013] In another specific embodiment of the present invention, the first top wall of the static slide rail cavity construction and the front side wall of the static slide rail cavity construction form a T-shaped cross-sectional shape with each other, the second top wall of the static slide rail cavity construction and the rear side wall of the static slide rail cavity construction form a T-shaped cross-sectional shape with each other, and the top surfaces of the first and second top walls of the static slide rail cavity construction are on the same horizontal plane with each other.

[0014] In another specific embodiment of the present invention, a motor yielding cavity is formed in the middle part of the chair seat basin connecting plate in the longitudinal direction, a motor seat fixing plate is fixed at a position corresponding to the lower part of the motor yielding cavity, a motor shaft sleeve matching hole is provided in the middle part of the motor seat fixing plate, and a chair seat basin connecting nut seat is fixed to the left and right ends of the chair seat basin connecting plate respectively; a worm gear box embedding cavity is provided in the middle part of the length direction of the movable slide rail and at a position corresponding to the motor shaft sleeve matching hole, and an embedded protrusion is formed at an interval at the lower part of the chair seat basin connecting plate, and the embedded protrusion is inserted and fixed with the embedded protrusion cavity provided on the movable slide rail; the movable slide rail automatic displacement driving mechanism cooperates with the motor seat fixing plate, the worm gear box embedding cavity and the middle part of the screw in sequence from top to bottom.

[0015] In another specific embodiment of the present invention, the movable slide rail automatic displacement drive mechanism includes a motor, a motor sleeve and a worm gear box, the motor is fixed on the upward side of the motor seat with its motor shaft facing downward, and the motor shaft of the motor extends to the bottom of the motor seat, and the motor seat is fixed to the upward side of the motor seat fixing plate by a motor seat fixing screw, the motor sleeve is embedded with the motor seat fixing plate at a position corresponding to the motor sleeve matching hole, the motor shaft extends to the bottom of the motor sleeve hole at a position corresponding to the motor sleeve hole opened in the middle of the motor sleeve and is inserted into the worm gear box at a position corresponding to the worm hole on the worm gear box and is connected to the worm gear box. The worm gear in the worm gear box is connected with the worm gear inside, and the worm gear drives the worm gear in the worm gear box to move on the screw gear. The worm gear box is arranged on the worm gear box seat and the worm gear box seat together with the worm gear box is embedded with the worm gear box embedding cavity; wherein a motor sleeve tensioning wing embedding cavity is formed on the hole walls on the left and right sides of the motor sleeve matching hole and at corresponding positions, and a pair of motor sleeve tensioning wings corresponding to each other and separated by a tensioning wing groove are formed at the left and right ends of the motor sleeve, the pair of motor sleeve tensioning wings are embedded with the motor sleeve tensioning wing embedding cavity, and the tensioning wing groove is embedded with the embedded protrusion; the motor is a DC brushless motor with forward and reverse rotation functions.

[0016] In order to embody the completion of another task of the present invention, the technical solution provided by the present invention is: a left support cover plate of a screw seat is riveted on the upward side of the left end of the bottom wall of the static slide rail cavity through a group of left rivets, and a right support cover plate of a screw seat is riveted on the upward side of the right end of the bottom wall of the static slide rail cavity through a group of right rivets, the left end of the screw is supported on the left support seat of the screw and is locked by the left end locking screw of the screw screwed on the left support seat of the screw, the right end of the screw is supported on the right support seat of the screw, and the right end of the screw is limited by the screw end limiting nut on the right side of the right support seat of the screw, the left support seat of the screw is welded to the left support cover plate of the screw seat, and the right support seat of the screw is welded to the right support cover plate of the screw seat.

[0017] To embody another task of the present invention, the technical solution provided by the present invention is: a front sliding fit anti-backlash groove of a movable slide rail extending from the left end to the right end of the first top wall of the static slide rail cavity in the length direction is formed on the side of the first top wall of the static slide rail cavity facing the static slide rail cavity and at a position corresponding to the upper front side of the screw rod; a rear sliding fit anti-backlash groove of a movable slide rail extending from the left end to the right end of the second top wall of the static slide rail cavity in the length direction and parallel to the front sliding fit anti-backlash groove of the movable slide rail is formed on the side of the second top wall of the static slide rail cavity facing the static slide rail cavity and at a position corresponding to the upper rear side of the screw rod; the front side of the movable slide rail in the length direction forms a sliding pair with the first top wall of the static slide rail cavity at the position corresponding to the front sliding fit anti-backlash groove of the movable slide rail, and the rear side of the movable slide rail in the length direction forms a sliding pair with the second top wall of the static slide rail cavity at the position corresponding to the rear sliding fit anti-backlash groove of the movable slide rail.

[0018] The cam is a vertical cam which is provided at the bottom of the left and right ends of the movable slide rail, and a vertical cam which is provided at the bottom of the left and right ends of the movable slide rail is provided with a vertical cam which is provided at the bottom of the left and right ends of the movable slide rail. The upper end portion is respectively formed with a front left embedding groove of a roller retainer support block and a front right embedding groove of a roller retainer support block, and the front gap eliminating mechanism is inserted and arranged on the front folding edge groove construction wall of the movable slide rail at the position corresponding to the front left embedding groove of the roller retainer support block and the front right embedding groove of the roller retainer support block; the left end upper portion and the right end upper portion of the rear folding edge groove construction wall of the movable slide rail are respectively formed with a rear left embedding groove of the roller retainer support block and a rear right embedding groove of the roller retainer support block, and the rear gap eliminating mechanism is inserted and arranged on the rear folding edge groove construction wall of the movable slide rail at the position corresponding to the rear left embedding groove of the roller retainer support block and the rear right embedding groove of the roller retainer support block, and the structure of the rear gap eliminating mechanism is the same as that of the front gap eliminating mechanism; the front left embedding groove of the roller retainer support block and the front right embedding groove of the roller retainer support block are separated by a front limiting flange of the retainer, and the rear left embedding groove of the roller retainer support block and the rear right embedding groove of the roller retainer support block are separated by a rear limiting flange of the retainer;The front clearance elimination mechanism includes a roller retainer support block, a roller retainer and a roller, the hollow cavity in the middle of the roller retainer support block is inserted and matched with the front limiting flange of the retainer, the left end of the roller retainer support block is inserted and matched with the front folding groove construction wall of the movable slide rail at a position corresponding to the front left embedded groove of the roller retainer support block, and the right end of the roller retainer support block is inserted and matched with the front folding groove construction wall of the movable slide rail at a position corresponding to the front right embedded groove of the roller retainer support block, and the roller retainer support The upper right end of the block is formed with a roller support pillow, the roller cage is inserted outside the roller cage support block, and the left end of the roller cage is supported by the cage reinforcement block formed at the left end of the roller cage support block, the roller support pillow corresponds to the roller cage cavity formed in the middle of the roller cage and is flush with the upper surface of the roller cage cavity, the right end face of the roller cage is in contact with the right groove wall of the front right embedded groove of the roller cage support block, the roller is arranged on the roller support pillow in a horizontal state, and the roller The left end face and the right end face of the roller holder are respectively protected by the surfaces of the left flange of the roller holder and the right flange of the roller holder on the opposite sides, the roller and the front sliding matching gap elimination groove of the movable slide rail form a sliding pair, and the roller eliminates the Y-direction gap between the movable slide rail and the static slide rail; a roller support pillow peak is formed in the middle area of ​​the upper surface of the roller support pillow, and a roller valley is formed in the middle of the length direction of the roller and around the circumferential direction of the roller, and the roller valley cooperates with the roller support pillow peak; The pair of movable slide rail guide mechanisms each include a sleeve seat fixing plate and a sleeve seat, the sleeve seat fixing plate is welded to the downward side of the movable slide rail, the sleeve seat is fixed to one side of the sleeve seat fixing plate by a sleeve seat fixing screw, a sleeve seat screw rod sliding matching hole is formed on the sleeve seat, the sleeve seat screw rod sliding matching hole corresponds to the sleeve seat fixing plate screw rod sliding matching hole provided on the sleeve seat fixing plate, the sleeve seat screw rod sliding matching hole and the sleeve seat fixing plate screw rod sliding matching hole are jointly sleeved on the screw rod and form a sliding pair with the screw rod. ;

[0019] In order to embody another task of the present invention, the technical solution provided by the present invention is: a first dustproof plate inserting and positioning groove is formed on the upward side of the first top wall of the static slide rail cavity and extends from the left end to the right end of the first top wall of the static slide rail cavity; a second dustproof plate inserting and positioning groove is formed on the upward side of the second top wall of the static slide rail cavity and extends from the left end to the right end of the second top wall of the static slide rail cavity; a first dustproof plate is fixed by inserting ribs at the bottom of the first dustproof plate at the position corresponding to the first dustproof plate inserting and positioning groove, and a second dustproof plate is fixed by inserting ribs at the bottom of the second dustproof plate at the position corresponding to the second dustproof plate inserting and positioning groove, and the first and second dustproof plates are respectively in contact with the front side and the rear side of the seat seat basin connecting plate by the opposite sides in the length direction to protect the redundant gap between the seat seat basin connecting plate sliding groove and the seat seat basin connecting plate; the first and second dustproof plates are made of soft material, and the soft material is rubber plate or PTFE plate.

[0020] One of the technical effects of the technical solution provided by the present invention is that the static slide rail is innovatively constructed as an integral profile structure, which helps to reflect the good rigidity and excellent strength of the static slide rail to avoid deformation and damage under the action of external force, and is conducive to reflecting the straightness of the dynamic slide rail to ensure the stability of the seat, avoid abnormal noise and avoid wear; secondly, since the left and right ends of the bottom wall of the static slide rail cavity are riveted to the upper side of the screw seat left and right support cover plates, and since the left and right screw support seats are respectively welded to the screw The left and right support plates of the rod seat are arranged on the left and right support plates, which is conducive to fully reflecting the reliable and lasting fixing effect between the static slide rail and the vehicle floor and at the same time ensuring the stability of the left and right support seats of the screw rod being fixed to the left and right support plates of the screw rod seat respectively, which can avoid the situation of seat fixing failure caused by loosening and damage of the static slide rail during use and avoid the situation of shaking of the left and right support seats of the screw rod; thirdly, since the length direction of the first and second top walls of the static slide rail cavity and the side facing the static slide rail cavity are respectively provided with the front and rear clearance elimination mechanisms, The movable slide rail and the static slide rail form a sliding pair of front and rear sliding matching gap elimination grooves of the movable slide rail, and since the front and rear sliding matching gap elimination grooves of the movable slide rail are significantly reduced compared with the prior art, the stability of the seat and the good comfort of the occupant can be guaranteed; fourthly, since the Y-direction gap between the movable and static slide rails can be eliminated by the front and rear gap elimination mechanisms, and the Z-direction gap between the movable and static slide rails can be eliminated by the Z-direction gap elimination rollers, an all-round excellent gap elimination effect can be achieved; fifthly, since the first and second top wall surfaces of the static slide rail cavity are respectively opened The first and second dustproof plate insertion and positioning grooves are provided, and the first and second dustproof plates are respectively inserted and fixed on the first and second dustproof plate insertion and positioning grooves, so that the first and second dustproof plates can shield the sliding groove of the seat seat basin connecting plate to prevent external dust from invading the static slide rail cavity and causing adverse effects on the transmission coordination between the worm gear box of the structural system of the automatic displacement driving mechanism of the movable slide rail and the screw located in the static slide rail cavity, and even causing the movable slide rail and the seat seat basin connecting plate to lose the forward and backward displacement adjustment function when in use due to sticking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the left side after assembly; Figure 3 for Figure 1 and Figure 2 A schematic diagram of a static slide rail shown; Figure 4 for Figure 1 A magnified view of part A; Figure 5 It is a schematic diagram of the present invention in use. DETAILED DESCRIPTION

[0022] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0023] In the following description, all concepts related to direction or orientation such as up, down, left, right, front, back, inside and outside are based on Figure 1 The position state is, and therefore it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0024] See also Figure 1 and Figure 2 , showing a static slide rail 1, which is fixed to the vehicle floor (also called "carriage floor") in the use state, and a seat seat basin 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 for connecting the static slide rail cavity 11 of the static slide rail 1 with the outside; showing a movable slide rail 2, which is arranged in the aforementioned static slide rail cavity 11 and forms a sliding pair with the static slide rail 1; showing a seat seat basin connecting plate 3, which is inserted into the seat seat basin connecting plate at a position corresponding to the aforementioned seat seat basin connecting plate sliding groove 12 The aforementioned static slide rail cavity 11 is inside the aforementioned static slide rail cavity 11 and is connected to the upper part of the aforementioned movable slide rail 2 in the length direction; a screw rod 4 is shown, which is arranged in the aforementioned static slide rail cavity 11 while maintaining parallelism with the length direction of the static slide rail 1; a movable slide rail automatic displacement driving mechanism 5 is shown for driving the aforementioned movable slide rail 2 together with the aforementioned seat seat basin connecting plate 3 to move left or right (expressed as "forward or backward" in the use state, the same below), and the movable slide rail automatic displacement driving mechanism 5 cooperates with the aforementioned seat seat basin connecting plate 3, the movable slide rail 2 and the screw rod 4 in sequence from top to bottom.

[0025] As the technical key point of the technical solution provided by the present invention, that is, as the purpose of completing the primary task of the present invention, the aforementioned static slide rail 1 is an integral profile structure.

[0026] The above-mentioned profile structure can be referred to as the profile form. The static slide rail 1 in the automobile seat slide rail of this profile structure has the advantages of but not limited to the following aspects: first, 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 MPa, such as 800 MPa or even higher, which enables the seat to maintain the sitting posture during a collision and ensure safety; second, small gap, because the structure of the static slide rail 1 in the profile form can make the gap small, thereby ensuring the stability and comfort of the seat; third, good synchronization, the adjustment step such as the minimum adjustment distance unit can meet the passengers' desired and more comfortable space requirements; fourth, electric adjustment is time-saving and labor-saving, because the static slide rail 1 in the profile form is conducive to making the moving slide rail 2 slide smoothly and silky, and maintaining a moving state of smooth adjustment, no jamming, no abnormal noise, etc.; fifth, good straightness, etc. In short, it can achieve one of the technical effects recorded by the applicant in the above technical effect column.

[0027] In addition, the applicant needs to explain that the static slide rail 1 described in the present invention is also referred to as the lower slide rail or outer slide rail in the industry, and the movable slide rail 2 is also referred to as the upper slide rail or inner slide rail in the industry, and therefore the present invention cannot be limited by the different names of the technical features. Moreover, the material or material of the static slide rail 1 of the profile structure mentioned above does not need to be uniquely limited in the present invention, for example, it can be stainless steel, aluminum alloy, cast iron or other equivalent materials. If the aforementioned aluminum alloy is used, it can be obtained by casting (casting includes pouring, and pouring is a method of casting) or by extrusion with the aid of an aluminum extrusion die. The implicit advantage of this structure is that, when in use, it can be cut from a lengthy profile such as 4m to 6m according to the actual length requirements of the static slide rail 1.

[0028] See also Figure 3 And combined with Figure 1 and Figure 2 In the above, the applicant mentioned that the static slide rail 1 is fixed to the vehicle floor when in use. Therefore, in order to facilitate the fixing of the static slide rail 1 to the vehicle floor, a static slide rail fixing bolt clearance cavity 19 is formed in the length direction of the static slide rail 1 and at a position corresponding to the aforementioned seat seat basin connecting plate sliding groove 12, so as to facilitate the fixing of the static slide rail 1 to the vehicle floor. Figure 1 The static rail fixing bolt 18 shown is introduced from the static rail fixing bolt clearance cavity 19 and fixed to the vehicle floor.

[0029] The aforementioned static slide rail 1 includes 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 that 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 formed on the front and rear sides of the length direction of the static slide rail cavity construction bottom wall 13 in a state of front and rear parallel to each other 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 formed in a water-cooled state. The flat state is respectively constructed at the upper part of the length direction of the front and rear side walls 14, 15 of the static slide rail cavity structure, the aforementioned seat seat basin connecting plate sliding groove 12 is constructed between the opposite sides of the length direction of the first and second top walls 16, 17 of the static slide rail cavity structure, and the aforementioned static slide rail 1, which is jointly constructed by the bottom wall 13 of the static slide rail cavity structure, the front and rear side walls 14, 15 of the static slide rail cavity structure and the first and second top walls 16, 17 of the static slide rail cavity structure, is the aforementioned integral profile structure; the aforementioned movable slide rail 2 and the aforementioned first and second top walls 16, 17 of the static slide rail cavity structure constitute a sliding pair.

[0030] Please see the key Figure 2A static slide rail cavity end shielding and reinforcing mechanism 6 is respectively provided between the left ends and the right ends of the front and rear side walls 14 and 15 of the static slide rail cavity construction, which is used to close the left cavity opening and the right cavity opening of the static slide rail cavity 11 and simultaneously reinforce and connect the left and right ends of the front and rear side walls 14 and 15 of the static slide rail cavity construction (also referred to as "connection", the same below). The static slide rail cavity end shielding and reinforcing mechanism 6 includes a reinforcing plate 61, a cavity opening shielding plate 62, a reinforcing plate positioning shaft 63 and a top wall end insert nest 64. The reinforcing plate 61 is provided at the front The static slide rail cavity 11 is located in the cavity opening of the static slide rail cavity 11, and a reinforcing plate folding edge 611 is folded toward each other at the front end and the rear end of the side of the reinforcing plate 61 facing the static slide rail cavity 11, and a reinforcing plate positioning shaft through hole 6111 is provided on the reinforcing plate folding edge 611, and the cavity opening shielding plate 62 is in contact with the cavity opening of the static slide rail cavity 11 on the side of the static slide rail cavity 11, and a cavity opening shielding plate fixing ear 621 is folded toward each other at the front end and the rear end of the side of the cavity opening shielding plate 62 facing the reinforcing plate 61, and a cavity opening shielding plate fixing ear 621 is folded toward each other at the cavity opening shielding plate The plate fixing ear 621 is provided with a cavity opening shielding plate fixing ear axis through hole 6211, and the cavity opening shielding plate fixing ear 621 is inserted into the cavity opening of the static slide rail cavity 11, and the cavity opening shielding plate fixing ear 621 coincides with the side of the reinforcing plate folding edge 611 facing away from the static slide rail cavity 11, and the cavity opening shielding plate fixing ear axis through hole 6211 corresponds to the aforementioned reinforcing plate positioning axis through hole 6111, and the reinforcing plate positioning axis 63 sequentially passes through the cavity opening shielding plate fixing ear axis through hole 6211 provided on the rear side wall 15 of the static slide rail cavity construction and is located opposite to the cavity opening shielding plate fixing ear axis through hole 6211 The corresponding static slide rail cavity construction rear side wall positioning axis hole 151, the cavity opening shielding plate fixing ear axis through hole 6211, the reinforcement plate positioning axis through hole 6111 and the static slide rail cavity construction front side wall positioning axis hole 141 which is also corresponding to the cavity opening shielding plate fixing ear axis through hole 6211 is fixed between the front and rear side walls 14, 15 of the static slide rail cavity construction, and the top wall end insertion nest 64 is inserted into the ends of the first top wall 16 of the static slide rail cavity construction and the second top wall 17 of the static slide rail cavity construction.

[0031] See you next time Figure 1 , by the Figure 1 As shown, the first top wall 16 of the static slide rail cavity structure and the front side wall 14 of the static slide rail cavity structure form a T-shaped cross-sectional shape, the second top wall 17 of the static slide rail cavity structure and the rear side wall 15 of the static slide rail cavity structure form a T-shaped cross-sectional shape, and the top surfaces of the first and second top walls 16 and 17 of the static slide rail cavity structure are on the same horizontal plane. The aforementioned structural form is exactly the manifestation of the profile structure.

[0032] Still see Figure 1 And combined with Figure 2A motor recess 31 is formed in the middle of the length direction of the aforementioned seat basin connecting plate 3, a motor seat fixing plate 311 is fixed at a position corresponding to the lower part of the motor recess 31, a motor shaft sleeve matching hole 3111 is provided in the middle of the motor seat fixing plate 311, and a seat basin connecting nut seat 32 is fixed at the left and right ends of the seat basin connecting plate 3, and the seat basin of the car seat is connected to the aforementioned seat basin connecting nut seat 32 when in use; A worm gear box embedding cavity 24 is provided in the middle of the length direction of the aforementioned movable slide rail 2 and at a position corresponding to the aforementioned motor shaft sleeve matching hole 3111, and an embedded protrusion 33 is formed in the lower interval of the aforementioned seat seat basin connecting plate 3, and the embedded protrusion 33 is inserted and fixed with the embedded protrusion cavity 26 provided on the aforementioned movable slide rail 2; the aforementioned movable slide rail automatic displacement driving mechanism 5 cooperates with the aforementioned motor seat fixing plate 311, the worm gear box embedding cavity 24 and the middle part of the aforementioned screw 4 from top to bottom in sequence.

[0033] The aforementioned 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 to the upward side of the motor seat 512 with its motor shaft 511 facing downward, and the motor shaft 511 of the motor 51 extends to the bottom of the motor seat 512, and the motor seat 512 is fixed to the upward side of the aforementioned motor seat fixing plate 311 by a motor seat fixing screw 5121. The motor shaft sleeve 52 is embedded with the motor seat fixing plate 311 at a position corresponding to the aforementioned motor shaft sleeve matching hole 3111. The aforementioned motor shaft 511 extends to the bottom of the motor shaft sleeve hole 521 at a position corresponding to the motor shaft sleeve hole 521 opened in the middle of the motor shaft sleeve 52 and is inserted into the worm gear box 53 at a position corresponding to the worm hole 531 on the worm gear box 53 and is connected to the worm in the worm gear box 53. Then, the worm gear in the worm gear box 53 is driven by the worm to move on the aforementioned screw 4, and the worm gear box 53 is arranged on the worm gear box seat 532 and the worm gear box seat 532 together with the worm gear box 53 is embedded with the aforementioned worm gear box embedding cavity 24; wherein a motor sleeve tensioning wing embedding cavity 31111 is formed on the hole walls on the left and right sides of the aforementioned motor sleeve matching hole 3111 and at corresponding positions, and a pair of motor sleeve tensioning wings 522 corresponding to each other and separated by a tensioning wing groove 5221 are formed at the left and right ends of the aforementioned motor sleeve 52, the pair of motor sleeve tensioning wings 522 are embedded with the aforementioned motor sleeve tensioning wing embedding cavity 31111, and the tensioning wing groove 5221 is embedded with the aforementioned embedding protrusion 33; in the present embodiment, the aforementioned motor 51 is a DC brushless motor with forward and reverse rotation functions.

[0034] A screw seat left support cover plate 131 is riveted on the upper side of the left end of the bottom wall 13 of the static slide rail cavity through a group of left rivets 1311, and a screw seat right support cover plate 132 is riveted on the upper side of the right end of the bottom wall 13 of the static slide rail cavity through a group of right rivets 1321. The left end of the aforementioned screw rod 4 is supported on the screw rod left support seat 41 and is locked by the screw rod left end locking screw 43 screwed on the screw rod left support seat 41, and the right end of the screw rod 4 is supported on the screw rod right support seat 42, and 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 support seat 42. The aforementioned screw rod left support seat 41 is welded to the screw rod seat left support cover plate 131, and the aforementioned screw rod right support seat 42 is welded to the aforementioned screw rod seat right support cover plate 132. The structure provided by the present invention, because the left and right support plates 131 and 132 of the screw seat are respectively added to the left and right ends of the bottom wall 13 of the static slide rail cavity, the second technical effect recorded by the applicant in the above technical effect column is faithfully realized. Because in the prior art before the present invention was proposed, the left and right support seats 41 and 42 of the screw rod were fixed to the bottom (bottom wall) of the static slide rail 1 in the static slide rail cavity 11 by bolts, and this fixing method belongs to point-selected fixing, while the present invention welds the left and right support seats 41 and 42 of the screw rod to the left and right support plates 131 and 132 of the screw seat respectively, and this fixing method is a surrounding fixing method with all-round surroundings, and bolts are abandoned, so that the bolt holes on the screw rod seat will not be deformed or collapsed due to various factors during use, thereby ensuring the reliable and lasting fixing effect of the left and right support seats 41 and 42 of the screw rod, and no shaking will occur.

[0035] Depend on Figure 3 As shown, as a preferred solution, in order to avoid interference during the assembly process, the left and right ends of the first top wall 16 are constructed in the aforementioned static slide rail cavity, and a screw support seat installation clearance cavity 163 is opened at the positions corresponding to the aforementioned left and right screw support seats 41 and 42, respectively.

[0036] Depend on Figure 1 and Figure 2As shown, on the side of the first top wall 16 of the static slide rail cavity toward the static slide rail cavity 11 and at a position corresponding to the front upper side (front oblique upper side) of the screw rod 4, a movable slide rail front sliding fit clearance elimination groove 161 extending from the left end of the length direction of the first top wall 16 of the static slide rail cavity to the right end is formed, and on the side of the second top wall 17 of the static slide rail cavity toward the static slide rail cavity 11 and at a position corresponding to the rear upper side (rear oblique upper side) of the screw rod 4, a movable slide rail front sliding fit clearance elimination groove 161 extending from the left end of the length direction of the first top wall 16 of the static slide rail cavity is formed. The left end of the wall 17 in the length direction extends to the right end of the movable rail rear sliding matching gap elimination groove 171 and is parallel to the aforementioned movable rail front sliding matching gap elimination groove 161. The front side of the movable rail 2 in the length direction forms a sliding pair with the first top wall 16 of the aforementioned static rail cavity at a position corresponding to the aforementioned movable rail front sliding matching gap elimination groove 161, and the rear side of the movable rail 2 in the length direction forms a sliding pair with the second top wall 17 of the aforementioned static rail cavity at a position corresponding to the aforementioned movable rail rear sliding matching gap elimination groove 171. This structure provided by the present invention can truly reflect the third technical effect recorded by the applicant in the above technical effect column.

[0037] See you next time Figure 1 and Figure 2 The front side of the movable rail 2 is folded upward to form a movable rail front folding groove 21 with a U-shaped cross-section, and the rear side of the movable rail 2 is folded upward to form a movable rail rear folding groove 22 with a U-shaped cross-section. A pair of Z-direction gap elimination rollers 23 are rotatably arranged at the left and right bottom ends of the movable rail 2 to eliminate the Z-direction gap between the movable and static rails 1 and 2 and to form a rolling pair with the bottom wall 13 of the static rail cavity; A front gap eliminating mechanism 7 is inserted at the left and right ends of the movable slide rail front folding groove construction wall 211 corresponding to the movable slide rail front folding groove 21, and a rear gap eliminating mechanism 10 is inserted at the left and right ends of the movable slide rail rear folding groove construction wall 221 corresponding to the movable slide rail rear folding groove 22; a pair of movable slide rail guide mechanisms 8 spaced apart from each other are arranged on the downward side of the middle part of the aforementioned movable slide rail 2, and the pair of movable slide rail guide mechanisms 8 and the aforementioned screw rod 4 form a sliding pair.

[0038] See also Figure 4 And combined with Figure 1 and Figure 2A roller cage support block front left embedded groove 2111 and a roller cage support block front right embedded groove 2112 are respectively formed at the upper left end and the upper right end of the aforementioned movable slide rail front folding groove construction wall 211. The aforementioned front clearance elimination mechanism 7 is inserted and embedded in the aforementioned movable slide rail front folding groove construction wall 211 at a position corresponding to the roller cage support block front left embedded groove 2111 and the roller cage support block front right embedded groove 2112; 1 is respectively formed with a roller cage support block rear left embedded groove 2211 and a roller cage support block rear right embedded groove 2212, and the aforementioned rear clearance eliminating mechanism 10 is inserted and embedded on the aforementioned movable slide rail rear folding groove construction wall 221 at a position corresponding to the roller cage support block rear left embedded groove 2211 and the roller cage support block rear right embedded groove 2212, and the structure of the aforementioned rear clearance eliminating mechanism 10 is the same as that of the aforementioned front clearance eliminating mechanism 7.

[0039] The aforementioned roller cage support block front left groove 2111 and the roller cage support block front right groove 2112 are separated by the cage front limiting flange 2113, and the aforementioned roller cage support block rear left groove 2211 and the roller cage support block rear right groove 2212 are separated by the cage rear limiting flange 2213.

[0040] As mentioned above, since the structure of the rear clearance eliminating mechanism 10 is the same as that of the front clearance eliminating mechanism 7, the following focuses on the combination of Figure 4Only the front clearance eliminating mechanism 7 is described in detail. The front clearance eliminating mechanism 7 includes a roller cage support block 71, a roller cage 72 and a roller 73. The hollow cavity 712 in the middle of the roller cage support block 71 is inserted and matched with the front limiting flange 2113 of the cage. The left end of the roller cage support block 71 is inserted and matched with the front folding groove construction wall 211 of the movable slide rail at a position corresponding to the front left embedded groove 2111 of the roller cage support block, and the right end of the roller cage support block 71 is inserted and matched with the front folding groove construction wall 211 of the movable slide rail at a position corresponding to the front left embedded groove 2111 of the roller cage support block. The position of the front right groove 2112 of the cage support block is inserted and matched with the front folding groove construction wall 211 of the movable slide rail, and the upper right end of the roller cage support block 71 is formed with a roller support pillow 711, the roller cage 72 is inserted outside the roller cage support block 71, and the left end of the roller cage 72 is supported by the cage reinforcement block 713 formed at the left end of the roller cage support block 71, and the aforementioned roller support pillow 711 and the roller support pillow 713 formed at the middle of the roller cage 72 are connected. The roller retainer cavity 721 corresponds to the roller retainer cavity 721 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 front right embedded groove 2112 of the roller retainer support block. The roller 73 is arranged on the roller support pillow 711 in a horizontal state, and the left end face and the right end face of the roller 73 are respectively protected by the surfaces of the left flange 722 of the roller retainer 72 and the right flange 723 of the retainer on the opposite sides. The roller 73 and the front sliding matching gap elimination groove 161 of the movable slide rail form a sliding pair, and the Y-direction gap between the movable slide rail 2 and the static slide rail 1 is eliminated by the roller 73; a roller supporting pillow peak 7111 is formed in the middle area of ​​the upper surface of the roller supporting pillow 711, and 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 cooperates with the roller supporting pillow peak 7111.

[0041] Depend on Figure 1 As shown, the aforementioned pair of movable slide rail guide mechanisms 8 each include a sleeve seat fixing plate 81 and a sleeve seat 82, the sleeve seat fixing plate 81 is welded to the downward side of the aforementioned movable slide rail 2, the sleeve seat 82 is fixed to one side of the sleeve seat fixing plate 81 by a sleeve seat fixing screw 822, a sleeve seat screw sliding hole 821 is formed on the sleeve seat 82, the sleeve seat screw sliding hole 821 corresponds to the sleeve seat fixing plate screw sliding hole 811 opened on the sleeve seat fixing plate 81, the sleeve seat screw sliding hole 821 and the sleeve seat fixing plate screw sliding hole 811 are jointly sleeved on the aforementioned screw 4 and form a sliding pair with the screw 4.

[0042] The roller 73 of the structural system of the front anti-backlash mechanism 7 involved in the present application is substantially a micro roller adapted to the aforementioned front sliding anti-backlash groove 161 of the movable rail. Similarly, the corresponding rear roller of the structural system of the rear anti-backlash mechanism 10, which is equivalent to the roller 73, is substantially a micro roller adapted to the aforementioned rear sliding anti-backlash groove 171 of the movable rail.

[0043] Undoubtedly, the aforementioned front and rear clearance eliminating mechanisms 7, 10 respectively cooperate well with the front and rear sliding clearance eliminating grooves 161, 171 of the movable slide rail, thereby playing an excellent role in eliminating the Y-direction clearance between the movable 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 movable and static slide rails 2, 1, thereby faithfully realizing the fourth technical effect recorded by the applicant in the above technical effect column.

[0044] Please continue to see Figure 1 A first dustproof plate inserting positioning groove 162 is formed on the upper side of the first top wall 16 of the static slide rail cavity, and extends from the left end to the right end of the first top wall 16 of the static slide rail cavity. A second dustproof plate inserting positioning groove 172 is formed on the upper side of the second top wall 17 of the static slide rail cavity, and extends from the left end to the right end of the second top wall 17 of the static slide rail cavity. The bottom of the first dustproof plate is inserted through the first dustproof plate at the position corresponding to the first dustproof plate inserting positioning groove 162. A first dustproof plate 1621 is inserted and fixed by the inserting rib 16211, and a second dustproof plate 1721 is inserted and fixed by the inserting rib 17211 at the bottom of the second dustproof plate at a position corresponding to the second dustproof plate inserting positioning groove 172, so that the first and second dustproof plates 1621, 1721 are in contact with the front side and the rear side of the aforementioned seat basin connecting plate 3 in the length direction, respectively, to protect the redundant gap between the aforementioned seat basin connecting plate sliding groove 12 and the seat basin connecting plate 3.

[0045] In this embodiment, the first and second dustproof plates 1621 and 1721 are made of a compliant material, and the compliant material is a rubber plate, but a PTFE (polytetrafluoroethylene) plate or other equivalent plates may also be used.

[0046] Since the present application adopts the first and second dustproof plates 1621 and 1721, it can objectively realize the fifth technical effect recorded by the applicant in the above technical effect column.

[0047] See also Figure 5 According to professional common sense, as a car seat, it needs to be equipped with two, namely a pair of Figure 5The high-strength electric slide rail for a car seat of the structure of the present invention shown in the figure, and the motors 51 of the movable slide rail automatic displacement drive mechanism 5 in the structural system of two, i.e. a pair of, high-strength electric slide rails for a car seat are all controlled by the ECU (electronic control unit), ensuring that both, i.e., the two motors, work synchronously and in the same direction.

[0048] by Figure 1 As an example, when the passenger operates a button located on the side or bottom of the seat of the car seat or other reasonable positions, the seat automatically moves forward or backward ( Figure 1 The displayed state is moving left or right).

[0049] Now Figure 1 Taking the state shown as moving to the right as an example, under the operation of the motor 51, the motor shaft 511 drives the worm of the worm gear box 53, and the worm drives the worm wheel. Since the worm wheel cooperates with the screw 4, the worm gear box 53 moves to the right along the screw 4. Since the worm gear box 53 is embedded and connected with the movable slide rail 2 at the position corresponding to the worm gear box embedding cavity 24 opened on the movable slide rail 2, and since the aforementioned seat seat basin connecting plate 3 is embedded with the embedding protrusion cavity 26 formed on the movable slide rail 2 through the embedding protrusion 33 formed at its lower end, when the worm gear box 53 moves to the right along the screw 4, the movable slide rail 2 together with the seat seat basin connecting plate 3 and the motor 51 set with the seat seat basin connecting plate 3 as a carrier also move synchronously accordingly, thereby driving the seat seat basin of the automobile seat to move together with the seat. Since the process of displacement to the left is similar to the above, only the motor works in the reverse direction, the applicant will not repeat it.

[0050] When the movable slide rail 2 moves to the right or left, the two front clearance eliminating mechanisms 7 and the two rear clearance eliminating mechanisms 10 eliminate the clearance mentioned above by the applicant, that is, eliminate the clearance in the Y direction. At the same time, the clearance in the Z direction is eliminated by the clearance eliminating roller 23 in the Z direction. It should be noted that the Z direction and the Y direction mentioned in this application are based on the directions on the vehicle in actual use.

[0051] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and fully realizes one to five of the technical effects recorded by the applicant in the technical effect column above.

Claims

1. A high-strength electric slide rail for a car seat, comprising a static slide rail (1), which is fixed to the bottom plate of the car in a use state, and a seat seat basin 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) for connecting a static slide rail cavity (11) of the static slide rail (1) with the outside; a movable slide rail (2), which is arranged in the static slide rail cavity (11) and forms a sliding pair with the static slide rail (1); a seat seat basin connecting plate (3), which slides in a direction corresponding to the seat seat basin connecting plate The slot (12) is inserted into the static slide rail cavity (11) and connected to the upper part of the length direction of the movable slide rail (2); a screw rod (4), which is arranged in the static slide rail cavity (11) in a state of being parallel to the length direction of the static slide rail (1); an automatic displacement driving mechanism (5) for driving the movable slide rail (2) together with the seat basin connecting plate (3) to move left or right, and the automatic displacement driving mechanism (5) for the movable slide rail is matched with the seat basin connecting plate (3), the movable slide rail (2) and the screw rod (4) in sequence from top to bottom, and is characterized in that: The static slide rail (1) is an integral profile structure.

2. The high-strength electric slide rail for a car seat according to claim 1, characterized in that: 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 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) constituting the 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 formed on the front and rear sides of the static slide rail cavity construction bottom wall (13) in a state of being parallel to each other in the front and rear directions 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, 17) ) are respectively formed in a horizontal state at the upper part of the length direction of the front and rear side walls (14, 15) of the static slide rail cavity structure, the seat basin connecting plate sliding groove (12) is formed between the opposite sides of the length direction of the first and second top walls (16, 17) of the static slide rail cavity structure, the static slide rail (1) composed of the bottom wall (13) of the static slide rail cavity structure, the front and rear side walls (14, 15) of the static slide rail cavity structure and the first and second top walls (16, 17) of the static slide rail cavity structure is the integral profile structure; the movable slide rail (2) and the first and second top walls (16, 17) of the static slide rail cavity structure form a sliding pair.

3. The high-strength electric slide rail for a car seat according to claim 2, characterized in that: A static slide rail cavity end shielding and reinforcing mechanism (6) is respectively arranged between the left end and the right end of the front and rear side walls (14, 15) of the static slide rail cavity structure, and is used to seal the left cavity opening and the right cavity opening of the static slide rail cavity (11) and simultaneously reinforce and connect the left end and the right end of the front and rear side walls (14, 15) of the static slide rail cavity structure. The static slide rail cavity end shielding and 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 insert nest (64). The reinforcing plate (61) is arranged in the static slide rail cavity (11). The invention relates to a reinforcing plate (61) which is located in the cavity opening of the static slide rail cavity (11). The front end and the rear end of the reinforcing plate (61) on the side facing the static slide rail cavity (11) are folded toward each other to form a reinforcing plate folding edge (611). The reinforcing plate folding edge (611) is provided with a reinforcing plate positioning shaft through hole (6111). The cavity opening shielding plate (62) is in contact with the cavity opening of the static slide rail cavity (11). The front end and the rear end of the cavity opening shielding plate (62) on the side facing the reinforcing plate (61) are folded toward each other to form a cavity opening shielding plate fixing ear (621). The cavity opening shielding plate fixing ear (621) is provided with a There is a cavity opening shielding plate fixing ear axis through hole (6211), the cavity opening shielding plate fixing ear (621) is inserted into the cavity opening of the static slide rail cavity (11), the cavity opening shielding plate fixing ear (621) coincides with the side of the reinforcing plate folding edge (611) facing away from the static slide rail cavity (11), and the cavity opening shielding plate fixing ear axis through hole (6211) corresponds to the reinforcing plate positioning axis through hole (6111), the reinforcing plate positioning axis (63) sequentially passes through the static slide rail cavity formed on the rear side wall (15) of the static slide rail cavity and the position of which corresponds to the cavity opening shielding plate fixing ear axis through hole (6211). The rail cavity structure has a rear side wall positioning shaft hole (151), a cavity opening shielding plate fixing ear shaft through hole (6211), a reinforcement plate positioning shaft through hole (6111), and passes through a front side wall positioning shaft hole (141) of the static slide rail cavity structure, which is also located on the front side wall (14) of the static slide rail cavity structure and corresponds to the cavity opening shielding plate fixing ear shaft through hole (6211), and is then fixed between the front and rear side walls (14, 15) of the static slide rail cavity structure, and the top wall end insert (64) is inserted into the ends of the first top wall (16) of the static slide rail cavity structure and the second top wall (17) of the static slide rail cavity structure.

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

5. The high-strength electric slide rail for a car seat according to claim 4, characterized in that: A motor clearance cavity (31) is formed in the middle of the length direction of the seat seat basin connecting plate (3), a motor seat fixing plate (311) is fixed at a position corresponding to the lower part of the motor clearance cavity (31), a motor shaft sleeve matching hole (3111) is provided in the middle of the motor seat fixing plate (311), and a seat seat basin connecting nut seat (32) is fixed at the left and right ends of the seat seat basin connecting plate (3); in the middle of the length direction of the movable slide rail (2) and at the corresponding A worm gear box embedding cavity (24) is provided at the position of the motor shaft sleeve matching hole (3111), and an embedded protrusion (33) is formed in the lower interval of the seat basin connecting plate (3), and the embedded protrusion (33) is inserted and fixed with the embedded protrusion cavity (26) provided on the movable slide rail (2); the movable slide rail automatic displacement driving mechanism (5) is matched with the motor seat fixing plate (311), the worm gear box embedding cavity (24) and the middle part of the screw rod (4) in sequence from top to bottom.

6. The high-strength electric slide rail for a car 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 upward side of a motor seat (512) with its motor shaft (511) facing downward, and the motor shaft (511) of the motor (51) extends below the motor seat (512); the motor seat (512) is fixed to the upward side of the motor seat fixing plate (311) by means of a motor seat fixing screw (5121); the motor shaft sleeve (52) is fitted with the motor seat fixing plate (311) at a position corresponding to the motor shaft sleeve matching hole (3111); the motor shaft (511) extends below the motor shaft sleeve hole (521) at a position corresponding to the motor shaft sleeve hole (521) opened in the middle of the motor shaft sleeve (52) and is inserted into the worm gear box (53) at a position corresponding to the worm hole (531) on the worm gear box (53) to be engaged with the worm gear. The worm gear in the worm gear box (53) is connected to the worm gear in the worm gear box (53), and the worm gear drives the worm gear in the worm gear box (53) to move on the screw (4). The worm gear box (53) is arranged on the worm gear box seat (532) and the worm gear box seat (532) together with the worm gear box (53) are embedded in the worm gear box embedding cavity (24); wherein a motor shaft sleeve tensioner is formed on the hole walls on the left and right sides of the motor shaft sleeve matching hole (3111) and at mutually corresponding positions. A wing embedding cavity (31111), and a pair of motor sleeve expansion wings (522) corresponding to each other and separated by a expansion wing groove (5221) are respectively formed at the left end and the right end of the motor sleeve (52), the pair of motor sleeve expansion wings (522) are embedded with the motor sleeve expansion wing embedding cavity (31111), and the expansion wing groove (5221) is embedded with the embedded protrusion (33); the motor (51) is a brushless DC motor with forward and reverse rotation functions.

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

8. The high-strength electric slide rail for a car seat according to claim 2, characterized in that: A first top wall (16) is constructed in the static slide rail cavity, on the side facing the static slide rail cavity (11) and at a position corresponding to the upper front side of the screw rod (4), a front sliding fit clearance elimination groove (161) of the movable slide rail is formed, which extends from the left end to the right end in the length direction of the first top wall (16) constructed in the static slide rail cavity; a second top wall (17) is constructed in the static slide rail cavity, on the side facing the static slide rail cavity (11) and at a position corresponding to the upper rear side of the screw rod (4), a length of the second top wall (17) constructed in the static slide rail cavity is formed. A movable slide rail rear sliding fit anti-backlash groove (171) extends from the left end to the right end in the longitudinal direction and is parallel to the movable slide rail front sliding fit anti-backlash groove (161), the front side of the movable slide rail (2) in the longitudinal direction at a position corresponding to the movable slide rail front sliding fit anti-backlash groove (161) forms a sliding pair with the first top wall (16) of the static slide rail cavity, and the rear side of the movable slide rail (2) in the longitudinal direction at a position corresponding to the movable slide rail rear sliding fit anti-backlash groove (171) forms a sliding pair with the second top wall (17) of the static slide rail cavity.

9. The high-strength electric slide rail for a car seat according to claim 2, characterized in that: The front side of the movable slide rail (2) is folded upward to form a movable slide rail front folding groove (21) with a U-shaped cross-section, and the rear side of the movable slide rail (2) is folded upward to form a movable slide rail rear folding groove (22) with a U-shaped cross-section. A pair of Z-direction gap eliminating rollers (23) for eliminating the Z-direction gap between the movable and static slide rails (1, 2) and forming a rolling pair with the bottom wall (13) of the static slide rail cavity are rotatably arranged at the left and right bottom ends of the movable slide rail (2); the left side of the movable slide rail front folding groove construction wall (211) corresponding to the movable slide rail front folding groove (21) is provided with a movable slide rail rear folding groove (22) having a U-shaped cross-section. A front gap elimination mechanism (7) is inserted at the left and right ends of the movable rail rear folding groove construction wall (221) corresponding to the movable rail rear folding groove (22), and a rear gap elimination mechanism (10) is inserted at the left and right ends; a pair of movable rail guide mechanisms (8) spaced from each other are arranged on the side facing downward in the middle of the movable rail (2), and the pair of movable rail guide mechanisms (8) and the screw rod (4) form a sliding pair; a roller retainer support block front left embedded groove (2111) and a roller retainer are respectively formed at the upper left end and the upper right end of the movable rail front folding groove construction wall (211). The front right embedded groove (2112) of the support block, the front clearance eliminating mechanism (7) is inserted and arranged on the front folding groove construction wall (211) of the movable slide rail at a position corresponding to the front left embedded groove (2111) of the roller retainer support block and the front right embedded groove (2112) of the roller retainer support block; the left upper part and the right upper part of the rear folding groove construction wall (221) of the movable slide rail are respectively formed with a rear left embedded groove (2211) of the roller retainer support block and a rear right embedded groove (2212) of the roller retainer support block, and the rear clearance eliminating mechanism (10) is inserted and arranged on the front folding groove construction wall (211) of the movable slide rail at a position corresponding to the front left embedded groove (2111) of the roller retainer support block The rear right embedded groove (2212) of the roller retainer support block is inserted and arranged on the rear folding groove construction wall (221) of the movable slide rail, and the structure of the rear gap elimination mechanism (10) is the same as the structure of the front gap elimination mechanism (7); the front left embedded groove (2111) of the roller retainer support block and the front right embedded groove (2112) of the roller retainer support block are separated by a retainer front limiting flange (2113), and the rear left embedded groove (2211) of the roller retainer support block and the rear right embedded groove (2212) of the roller retainer support block are separated by a retainer rear limiting flange (2213);The front clearance eliminating mechanism (7) comprises 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 and matched with the front limiting flange (2113) of the retainer; the left end of the roller retainer support block (71) is inserted and matched with the front folding groove construction wall (211) of the movable slide rail at a position corresponding to the front left embedded groove (2111) of the roller retainer support block; and the right end of the roller retainer support block (71) is inserted and matched with the front folding groove construction wall (211) of the movable slide rail at a position corresponding to the front right embedded groove (2112) of the roller retainer support block; and the right end of the roller retainer support block (71) is inserted and matched with the front folding groove construction wall (211) of the movable slide rail. The roller retainer (72) is provided with a roller support pillow (711), the roller retainer (72) is inserted outside the roller retainer support block (71), and the left end of the roller retainer (72) is supported by a retainer reinforcement block (713) formed at the left end of the roller retainer support block (71), the roller support pillow (711) corresponds to a roller retainer cavity (721) formed at the middle of the roller retainer (72) and is flush with the upper surface of the roller retainer cavity (721), the right end surface of the roller retainer (72) is in contact with the right groove wall (21121) of the front right embedded groove (2112) of the roller retainer support block, the roller (73) is arranged on the roller support pillow (711) in a horizontal state, and the roller (73) ) are protected by the surfaces of the roller retainer (72) on the opposite sides of the retainer left flange (722) and the retainer right flange (723), respectively; the roller (73) and the front sliding matching clearance elimination groove (161) of the movable slide rail form a sliding pair, and the roller (73) eliminates the Y-direction gap between the movable slide rail (2) and the static slide rail (1); a roller support pillow peak (7111) is formed in the middle area of ​​the upper surface of the roller support pillow (711), and 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) cooperates with the roller support pillow peak (7111); the A pair of movable slide rail guide mechanisms (8) each comprises a sleeve seat fixing plate (81) and a sleeve seat (82), wherein the sleeve seat fixing plate (81) is welded to a side of the movable slide rail (2) facing downward, and the sleeve seat (82) is fixed to one side of the sleeve seat fixing plate (81) by means of a sleeve seat fixing screw (822), and a sleeve seat screw rod sliding matching hole (821) is formed on the sleeve seat (82), and the sleeve seat screw rod sliding matching hole (821) corresponds to a sleeve seat fixing plate screw rod sliding matching hole (811) provided on the sleeve seat fixing plate (81), and the sleeve seat screw rod sliding matching hole (821) and the sleeve seat fixing plate screw rod sliding matching hole (811) are jointly sleeved on the screw rod (4) and form a sliding pair with the screw rod (4). ; 10. The high-strength electric slide rail for a car seat according to claim 2, characterized in that: A first dustproof plate inserting and positioning groove (162) is formed on the upward side of the first top wall (16) of the static slide rail cavity and extends from the left end to the right end of the first top wall (16) of the static slide rail cavity; a second dustproof plate inserting and positioning groove (172) is formed on the upward side of the second top wall (17) of the static slide rail cavity and extends from the left end to the right end of the second top wall (17) of the static slide rail cavity; a first dustproof plate (1621) is inserted and fixed at a position corresponding to the first dustproof plate inserting and positioning groove (162) via an inserting rib (16211) at the bottom of the first dustproof plate; A second dustproof plate (1721) is inserted and fixed at a position corresponding to the second dustproof plate insertion positioning groove (172) through the second dustproof plate bottom insertion rib (17211), and the first and second dustproof plates (1621, 1721) are respectively in contact with the front side and the rear side of the seat basin connecting plate (3) on the length direction to protect the redundant gap between the seat basin connecting plate sliding groove (12) and the seat basin connecting plate (3); the first and second dustproof plates (1621, 1721) are made of flexible material, and the flexible material is a rubber plate or a PTFE plate.

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