Middle-mounted long sliding rail

Abstract

The utility model discloses a middle-mounted long sliding rail, and relates to the technical field of automobile seat sliding rails, the middle-mounted long sliding rail comprises a base, a clamping shell, a driving assembly and a dustproof assembly, and the clamping shell is slidably arranged in a channel formed in the base; the driving assembly is installed on the clamping shell and used for driving the clamping shell to move in the channel in a reciprocating mode. The dustproof assembly is installed on the clamping shell and used for blocking falling objects. The driving assembly is connected with the bottom wall of the channel through a sliding piece. Wherein the driving assembly comprises a motor, a gear box, a lead screw and a worm and gear structure, the motor is fixedly installed on the clamping shell and moves in the axis direction of the lead screw along with the clamping shell, the extending end of the motor is connected with the worm and gear structure, the gear box is installed in the sliding part, and the lead screw penetrates through the sliding part and is rotationally arranged on the base. The lead screw is in threaded fit with the sliding piece, and the worm and gear structure is in threaded connection with the lead screw. The method has the advantages that the defects of overall space design are overcome, the design height of the whole vehicle is optimized, and the driving experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seat slide rails, and in particular to a mid-mounted long slide rail. Background Art

[0002] Existing slide rails typically have the motor fixed to the rail, ensuring the motor's rotating shaft is coaxial with the rail's lead screw. This increases the rail's height and thickness. For some models, this can affect the entire vehicle's manufacturing and installation process. The seat is elevated high above the floor, significantly impacting the vehicle's design height, significantly increasing the interior headroom and reducing the driving experience. Utility Model Content

[0003] In order to improve the problem of unreasonable overall space design height during the overall manufacturing and installation process, which occupies the height space of the vehicle body and leads to a decrease in driving experience, the present application provides a centrally mounted long slide rail.

[0004] The present application provides a mid-mounted long slide rail adopting the following technical solution:

[0005] A centrally mounted long slide rail comprises a base, a housing, a drive assembly and a dustproof assembly, wherein the housing is slidably arranged in a channel opened on the base; the drive assembly is mounted on the housing for driving the housing to reciprocate in the channel; the dustproof assembly is mounted on the housing for blocking falling objects; the drive assembly and the bottom wall of the channel are connected by a sliding member; wherein the drive assembly comprises a motor, a gearbox, a screw and a worm gear structure, wherein the motor is fixedly mounted on the housing and moves along the axis of the screw, the protruding end of the motor is connected to the worm gear structure, the gearbox is mounted in the sliding member, the screw passes through the sliding member and is rotatably arranged on the base, the screw and the sliding member are threadedly matched, and the worm gear structure is threadedly connected to the screw.

[0006] By adopting the above technical solution, the motor is arranged on the upper end surface of the jamb. After the motor is started, the extended shaft of the motor drives the worm gear structure located in the gear box. Since the worm gear structure is driven along the screw, the sliding member and the jamb move together along the direction of the screw axis, so that the motor moves together with the jamb. When the motor is installed and fixed, it is installed at the bottom of the car slide seat and moves together with the seat, which reduces the design height of the entire car slide seat, saves the interior space of the entire vehicle, provides a larger riding space for the driver and passengers, and improves the driving experience.

[0007] Optionally, the sliding member includes a sliding seat and a paddle, the gear box is mounted on the sliding seat, the sliding seat and the screw rod are threaded together, and the paddle is mounted on both ends of the housing.

[0008] By adopting the above technical solution, the slide seat and the card shell are fastened together by bolts, and the paddles are fixed at both ends of the card shell. The ends of the paddles are sharp to facilitate lifting the sealed channel.

[0009] Optionally, the dustproof component includes a sealing plate and a rubber strip, the sealing plates are arranged in a linear array on the channel, the channel has a rotating part and a contact part, the sealing plate is rotatably arranged on the rotating part of the channel, and the rubber strip is installed on the contact part of the channel.

[0010] By adopting the above technical solution, one end of the sealing plate rotates with the rotating part of the channel. When the paddle and the sealing plate contact and pry, the sealing plate is flipped at a certain angle. When the paddle is away from the sealing plate, the sealing plate automatically flips and abuts against the contact part, thereby sealing the channel and reducing the occurrence of dust or dropped objects entering the channel.

[0011] Optionally, the sealing plate includes a first sealing plate and a second sealing plate, the first sealing plate and the second sealing plate are arranged in an array in sequence, and the width of the channel is equal to the width of the first sealing plate and / or the second sealing plate.

[0012] By adopting the above technical solution, the first sealing plate and the second sealing plate are fastened and sealed to just cover the channel, reducing dust or dropped objects from entering the channel, and the protective card shell can move smoothly along the length direction of the channel, reducing resistance.

[0013] Optionally, protective covers are further installed on both ends of the housing, and the coverage area of ​​the protective covers is larger than the area of ​​the first sealing plate and / or the second sealing plate.

[0014] By adopting the above technical solution, the protective cover can further effectively block external falling objects to prevent the falling objects from damaging the pick, while also protecting the first sealing plate and the second sealing plate flipped inside the protective cover.

[0015] Optionally, an arc-shaped recessed portion for depositing liquid is formed on the end surface of the rubber strip.

[0016] By adopting the above technical solution, the arc-shaped recessed portion helps to collect the liquid that has leaked into the channel, reducing the environmental pollution caused by splashing around the inside of the channel, and facilitating direct cleaning of the arc-shaped recessed portion.

[0017] Optionally, a limiting rail is further provided in the channel, and the slide seat is slidably arranged on the limiting rail.

[0018] By adopting the above technical solution, the limiting rail and the base are fixed, and the slide slides on the limiting rail, so that the slide plays a limiting role during the movement process, making it easy for the slide to maintain horizontal movement and reduce the occurrence of deviation to both sides.

[0019] Optionally, the first sealing plate is U-shaped, and ends of the first sealing plate are overlapped on the second sealing plates on two adjacent sides.

[0020] By adopting the above technical solution, the two ends of the second sealing plate are concave in shape. When the ends of the first sealing plate and the concave overlap each other and are located in the channel, a good sealing effect is formed on the channel, reducing the occurrence of dust or falling objects entering the channel.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The motor is fixed on the slide rail, and the slide rail requires a certain height and space to accommodate the motor. Therefore, the height of the base plate and the slide seat must be increased during manufacturing. However, the drive assembly used in this utility model installs the motor in the reserved space inside the slide seat, reducing the height and space occupied by the slide seat inside the vehicle body, thereby improving the driving experience.

[0023] 2. The worm gear structure is used for the movement of the slide seat, which makes the transmission smoother and quieter, facilitates the realization of the self-locking function, smoothly transmits the slide seat, and improves the driving experience;

[0024] 3. The dustproof component effectively protects the channel on the slide rail base, reduces the occurrence of dust or falling objects entering the channel, and ensures that the card and the seat connected to the card can move smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic diagram showing the overall structure of this application.

[0027] Figure 2 This is a schematic diagram of the overall structure of this application shown from another perspective.

[0028] Figure 3 This application displays Figure 2 A-direction enlarged view.

[0029] Figure 4 This is a cross-sectional view showing the worm gear structure of this application.

[0030] Figure 5 This is a partial schematic diagram showing the jamming structure of this application.

[0031] Figure 6This is a partial schematic diagram showing the interior of the slide rail in this application.

[0032] Figure numerals: 1. base; 2. housing; 3. drive assembly; 4. dustproof assembly; 5. sliding part; 31. motor; 32. gear box; 33. screw; 34. worm gear structure; 51. slide; 52. paddle; 41. sealing plate; 42. rubber strip; 411. first sealing plate; 412. second sealing plate; 6. protective cover; 7. track limiter. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 To the attached Figure 6 This application is described in further detail.

[0034] The embodiment of the present application discloses a centrally mounted long slide rail.

[0035] Reference Figure 1 and Figure 2 As shown, it consists of a base 1, a housing 2, a drive assembly 3 and a dustproof assembly 4. The housing 2 is slidably arranged in a channel opened on the base 1; the drive assembly 3 is mounted on the housing 2 to drive the housing 2 to move back and forth in the channel; the dustproof assembly 4 is mounted on the housing 2 to block falling objects; the drive assembly 3 and the bottom wall of the channel are connected by a sliding member 5;

[0036] See also Figure 4 and Figure 6 As shown, the drive assembly 3 includes a motor 31, a gearbox 32, a screw 33, and a worm gear structure 34. The motor 31 is fixedly mounted on the housing 2 and moves along the axis of the screw 33. In practice, four motors 31 are provided, one on each side of the base 1, to ensure that the car seat on the housing 2 has sufficient travel. The protruding end of the motor 31 is connected to the worm gear structure 34. The gearbox 32 is mounted in the sliding member 5. The screw 33 passes through the sliding member 5 and is rotated on the base 1. The screw 33 and the sliding member 5 are threadedly matched. The worm gear structure 34 is threadedly connected to the screw 33. The worm gear structure 34 consists of a worm, a worm wheel, and a transmission gear. The transmission gear is not shown. After the motor 31 is driven, the protruding shaft of the motor 31 drives the worm in the gearbox 32 to rotate. The worm and worm wheel are meshed with each other, and the worm wheel is driven along with the rotation of the worm. At the same time, the worm rotates in the gear box 32, and the worm wheel is transmitted on the screw 33, so that the slide 51 slides in the channel, and the housing 2 moves in the channel of the base 1, so that the car seat connected to the housing 2 slides together to achieve guidance or resetting. Since the motor 31 moves with the housing 2 and the car seat connected to the housing 2, and the motor 31 is installed in the reserved cavity of the car seat, the overall height of the slide rail is reduced, which helps to increase the height space of the car seat in the car body and improve the driving experience.

[0037] See also Figure 4 , Figure 5 and Figure 6 As shown in ,

[0038] , the sliding member 5 is composed of a sliding seat 51 and a paddle 52. The gearbox 32 is installed on the sliding seat 51. The sliding seat 51 is in threaded fit with the lead screw 33. The paddles 52 are fixedly installed at both ends of the cartridge case 2. The ends of the paddles 52 are all sharp, reducing the acting force when the paddles 52 are lifted.

[0038] See Figure 3 As shown in Figure 3 , , the dust-proof component 4 includes a sealing plate 41 and a rubber strip 42. The sealing plates 41 are arranged in a linear array on the channel. The channel has a rotating part and a contact part. The sealing plates 41 are rotatably arranged on the rotating part of the channel. The rubber strip 42 is installed on the contact part of the channel. An arc-shaped recess for depositing liquid is formed on the end face of the rubber strip 42. The arc-shaped recess facilitates the collection of liquid drippings to prevent them from seeping into the inner bottom wall of the channel. At the same time, the rubber strip 42 made of rubber plays a buffering role, facilitating the flipping operation of the sealing plate 41.

[0039] See Figure 3 As shown in Figure 3 , , the sealing plate 41 includes a first sealing plate 411 and a second sealing plate 412. The first sealing plate 411 and the second sealing plate 412 are arranged in a linear array in sequence. The width of the channel is equal to the width of the first sealing plate 411 and / or the second sealing plate 412. The first sealing plate 411 and the second sealing plate 412 overlap each other to form a sealed state, reducing the situation of dust or falling objects entering the channel and playing a blocking role. The first sealing plate 411 is in a U shape. The end of the first sealing plate 411 overlaps on the second sealing plates 412 on adjacent sides. The shapes of the first sealing plate 411 and the second sealing plate 412 are buckled with each other, facilitating the sharp end of the paddle 52 to be lifted.

[0040] See Figure 5 and Figure 6 As shown in Figure 5 , Figure 6 , protective covers 6 are also installed at both ends of the cartridge case 2. The coverage area of the protective covers 6 is larger than the area of the first sealing plate 411 and / or the second sealing plate 412. During the movement of the cartridge case 2 on the channel, the protective covers 6 play a good protective role to prevent falling objects from damaging the paddles 52 due to excessive weight. At the same time, it is ensured that when the first sealing plate 411 and the second sealing plate 412 are in the lifted state, they are both located inside the protective covers 6, preventing dust or falling objects from entering when the first sealing plate 411 and the second sealing plate 412 are pried.

[0041] See Figure 4 As shown in Figure 4 , , a fixed guide rail 7 is also fixedly installed in the channel. The sliding seat 51 is slidably arranged on the guide rail 7. The sliding seat 51 and the cartridge case 2 are locked and fitted by bolts. The sliding seat 51 slides on the guide rail 7, facilitating the limiting of the cartridge case 2.

[0042] The implementation principle of a centrally mounted long slide rail in an embodiment of the present application is as follows: after the motor 31 is started, the motor 31 located on the housing 2 extends the shaft to drive the worm gear structure 34 to transmit, thereby driving the slide 51 and the housing 2 to move along the length direction of the channel. Since the motor 31 is installed in a reserved cavity opened in the car seat during the manufacturing process, the overall height of the slide rail is reduced, reducing the situation where the traditional motor 31 occupies a large height and space on the car seat, thereby improving the driving experience on the car seat. The worm gear structure 34 is used to transmit the car seat. In addition to having a self-locking function, it also has the characteristic of smooth transmission, further improving the driving experience. The dustproof component 4 arranged on the channel has a good protective effect on the slide rail, reducing the entry of dropped objects or dust into the channel, and keeping the housing 2 and the car seat smooth and smooth at all times during the transmission process.

[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A mid-mounted long slide rail, characterized by: The invention comprises a base (1), a housing (2), a driving assembly (3) and a dustproof assembly (4); the housing (2) is slidably arranged in a channel opened on the base (1); the driving assembly (3) is mounted on the housing (2) and is used to drive the housing (2) to move back and forth in the channel; the dustproof assembly (4) is mounted on the housing (2) and is used to block falling objects; the driving assembly (3) and the bottom wall of the channel are connected by a sliding member (5); The drive assembly (3) comprises a motor (31), a gearbox (32), a screw (33) and a worm gear structure (34); the motor (31) is fixedly mounted on the housing (2) and moves along the axis of the screw (33); the protruding end of the motor (31) is connected to the worm gear structure (34); the gearbox (32) is mounted in a sliding member (5); the screw (33) passes through the sliding member (5) and is rotatably arranged on the base (1); the screw (33) and the sliding member (5) are threadedly matched; the worm gear structure (34) and the screw (33) are threadedly connected.

2. The centrally mounted long slide rail according to claim 1, characterized in that: The sliding member (5) comprises a sliding seat (51) and a paddle (52), the gear box (32) is mounted on the sliding seat (51), the sliding seat (51) and the screw rod (33) are threadedly matched, and the paddle (52) is mounted on both ends of the housing (2).

3. The centrally mounted long slide rail according to claim 1, characterized in that: The dustproof component (4) comprises a sealing plate (41) and a rubber strip (42), wherein the sealing plates (41) are arranged in a linear array on a channel, wherein the channel has a rotating portion and a contact portion, wherein the sealing plate (41) is rotatably arranged on the rotating portion of the channel, and the rubber strip (42) is mounted on the contact portion of the channel.

4. The centrally mounted long slide rail according to claim 3, characterized in that: The sealing plate (41) comprises a first sealing plate (411) and a second sealing plate (412), wherein the first sealing plate (411) and the second sealing plate (412) are arranged in an array in sequence, and the width of the channel is equal to the width of the first sealing plate (411) and / or the second sealing plate (412).

5. The centrally mounted long slide rail according to claim 4, characterized in that: Protective covers (6) are also installed on both ends of the housing (2), and the coverage area of ​​the protective covers (6) is larger than the area of ​​the first sealing plate (411) and / or the second sealing plate (412).

6. The centrally mounted long slide rail according to claim 3, characterized in that: An arc-shaped recessed portion for depositing liquid is formed on the end surface of the rubber strip (42).

7. The centrally mounted long slide rail according to claim 2, characterized in that: A limiting rail (7) is also provided in the channel, and the sliding seat (51) is slidably arranged on the limiting rail (7).

8. The centrally mounted long slide rail according to claim 4, characterized in that: The first sealing plate (411) is in a U-shape, and the ends of the first sealing plate (411) are overlapped on the second sealing plates (412) on two adjacent sides.

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