Adjustment assembly and seat system comprising same

Abstract

The utility model provides an adjusting assembly and a seat system comprising the same. The adjusting assembly comprises a gear box, the gear box comprises a shell and a gear set, and the gear set is located in an installation space defined by the shell; the gear set comprises a first gear and a second gear, the first gear rotates around a first axis, the second gear rotates around a second axis, the first axis is perpendicular to the second axis, and the coincident or parallel direction of the first axis is defined as a first direction; the containing part comprises a first containing part and a second containing part, the first containing part and the second containing part are located on the two sides of the shell in the second direction respectively, and the first containing part and the second containing part provide openings in the second direction to contain the gearbox; the two ends, in the second direction, of the shell are each provided with a second-direction outer wall face, and the second-direction outer wall faces penetrate through the opening in the third direction.

Description

Technical Field

[0001] The present application relates to an adjustment assembly and a seat system including the same. Background Art

[0002] In a seat, such as an automotive seat, there are some adjustment requirements. For example, Figure 1 as shown, adjusting the angle of the backrest 201 of the seat 20 relative to the seat cushion 202 to improve the comfort of the automotive seat, or even laying the backrest 201 flat relative to the seat cushion 202 to provide a large bed mode of the seat, or the backrest 201 can be folded relative to the seat cushion 202 to provide more storage space in the vehicle for placing more items.

[0003] Combined with Figure 1 and Figure 2A and Figure 2B As shown, the current seat adjustment assembly 10a is generally disposed on the automotive seat slide rail 30 under the seat 20. A driving member 3 (such as a driving motor) is disposed in the middle in the width direction of the seat, and the gearboxes 1a on both sides of the slide rail are connected by a shaft 5a. As Figure 2A and Figure 2B shown, generally, the driving member 3, the rigid shaft 5a, and the input gear of the gearbox 1a need to be at the same height. However, this makes it difficult to arrange the seat adjustment assembly 10a under the seat 20.

[0004] Based on the above, in some comparative solutions, the driving member 3 can be disposed at a position higher than the gearbox 1a, and the driving member 3 and the gearbox 1a are connected by a flexible shaft 5.

[0005] For example, as Figure 3A shown, in a comparative solution, the gearbox 1a still remains vertically disposed in the height direction, but the flexible shaft 5 will be twisted into a shape similar to a "Z" shape as shown in Figure 3A . This will affect the service life of the flexible shaft 5, and requires a higher driving power for the driving member 3 and will also generate a large operating noise.

[0006] For example Figure 3B and Figure 3C shown, in another comparative solution, the gearbox 1a is disposed in the track 611 of the lower slide rail 61 and the accommodation chamber 621 of the upper slide rail 62, and is disposed on the upper slide rail and contacts a buffer member 612 (such as a rubber strip) located in the track 611 of the lower slide rail 61. In order to avoid the flexible shaft 5 from Figure 3A being twisted into a shape similar to a "Z" shape as shown, the gearbox 1b is integrally inclined. This will cause the gearbox 1b to press the rubber strip, resulting in a short service life. Generally, the slide rail needs to be widened, thus wasting the space and materials in the width direction.

[0007] For example Figure 3D As shown, in yet another comparative solution, in order to adapt to the height of the driving member 3, more intermediate gears 123 (i.e., idle gears) are provided in the gearbox 1c. For example, the original two intermediate gears 123 on the left side in the figure are increased to three intermediate gears 123 on the right side, overall increasing the height of the gear assembly to adapt to the height of the driving member 3. However, this comparative solution requires more idle gears, and for different heights, the height of the gearbox 1c needs to be changed as a whole, which requires further cost reduction.

[0008] Therefore, there is a need in the art for an adjustment assembly and a seat including the same, such that on the basis that the seat is easy to arrange in space, at least one of the technical problems of the above comparative solutions is overcome. Summary of the Utility Model

[0009] The object of the present application is to provide an adjustment assembly.

[0010] Another object of the present application is to provide a seat system.

[0011] An adjustment assembly according to a first aspect of the present application includes: a gearbox including a housing and a gear set, the gear set being located inside an installation space defined by the housing; the gear set includes a first gear and a second gear, the first gear rotates about a first axis, the second gear rotates about a second axis, the first axis is perpendicular to the second axis, and a direction in which the first axis coincides or is parallel is defined as a first direction; a receiving member including a first receiving portion and a second receiving portion, the first receiving portion and the second receiving portion are respectively located on two sides of the housing in a second direction, and the first receiving portion and the second receiving portion provide openings in the second direction to receive the gearbox; both ends of the housing in the second direction respectively have outer wall surfaces in the second direction, and the outer wall surfaces in the second direction pass through the openings along a third direction; wherein, the first direction, the second direction, and the third direction are perpendicular to each other, and an acute angle is formed between the second axis and the second direction.

[0012] The technical solution of the adjustment assembly introduced above, through the inclined structure in which an acute angle is formed between the axis of the second gear of the gearbox of the adjustment assembly and the second direction, and at the same time, the structure in which the outer wall surface in the second direction of the gearbox housing passes through the opening along the third direction, not only realizes avoiding large distortion of the flexible shaft as Figure 3A shown, but also avoids the gearbox as Figure 3B and Figure 3C shown from pressing the buffer member due to the inclined setting, and there is no need to unnecessarily provide more idle gears to adjust the height as Figure 3D shown. This makes the adjustment assembly have the advantages of simple and compact structure, reliable operation, etc. on the basis that the seat is easy to arrange in space.

[0013] In one or more embodiments of the adjusting assembly, the gear portion of the first gear is a turbine gear, the gear portion of the second gear is a worm gear, the gear set further includes an intermediate gear meshing with the first gear and the second gear respectively as an idler gear, and the first gear, the intermediate gear, and the second gear are sequentially stacked in the third direction.

[0014] In one or more embodiments of the adjusting assembly, the housing includes a first half-shell and a second half-shell. The first half-shell and the second half-shell can be assembled in the second direction to form the housing. The first half-shell and the second half-shell respectively provide outer wall surfaces in the second direction. The portion of the outer wall surface in the second direction corresponding to the second gear extends in the third direction. The first half-shell or the second half-shell on the input side of the second gear has a half-shell body and a connecting body detachably connected to the half-shell body. The connecting body has a mounting hole with an extending direction of the second axis to provide support for the second gear.

[0015] In one or more embodiments of the adjusting assembly, the housing includes a first half-shell and a second half-shell. The first half-shell and the second half-shell can be assembled in the second direction to form the housing. The first half-shell and the second half-shell respectively provide outer wall surfaces in the second direction. The outer wall surface in the second direction includes a first portion and a second portion. The first portion passes through the opening in the third direction. The second portion is the portion corresponding to the second gear. The second portion is perpendicular to the second axis and forms an acute angle with the third direction. A sleeve member can be detachably installed on the second portion. The sleeve member can coaxially sleeve the second gear to provide support for the second gear.

[0016] In one or more embodiments of the adjusting assembly, the housing includes a first half-shell and a second half-shell. The first half-shell and the second half-shell can be assembled in the first direction to form the housing. The outer wall surface in the second direction is jointly provided and formed by the first half-shell and the second half-shell. The outer wall surface in the second direction includes a first portion and a second portion. The first portion passes through the opening in the third direction. The second portion is the portion corresponding to the second gear. The second portion is perpendicular to the second axis and forms an acute angle with the third direction.

[0017] In one or more embodiments of the adjusting assembly, both ends of the first half-shell and the second half-shell in the third direction have protruding portions, and the protruding portions of the two are snap-connected by a connecting cap.

[0018] In one or more embodiments of the adjustment assembly, the adjustment assembly further includes a driving member and an output member; the position of the driving member in the third direction is not flush with the second gear, and the second gear is connected by a flexible shaft, and the second gear can be driven to rotate around the second axis; the output member is coaxially arranged with the first gear and can be driven by the first gear to rotate around the first axis.

[0019] In one or more embodiments of the adjustment assembly, the adjustment assembly includes a first output member and a second output member respectively located on the first side and the second side in the second direction, and a gear box and a receiving member are respectively provided corresponding thereto. A single driving member is located between the first output member and the second output member in the second direction. The single driving member is connected to the second gear on the first side through a first flexible shaft and connected to the second gear on the second side through a second flexible shaft.

[0020] In one or more embodiments of the adjustment assembly, the receiving member includes a lower slide rail, and the track of the lower slide rail or a buffer member located on the track provides the first receiving portion and the second receiving portion.

[0021] A seat system according to a second aspect of the present application includes the adjustment assembly as described in the first aspect and a seat, and the seat is connected to the adjustment assembly.

[0022] The beneficial effects of the above embodiments include but are not limited to that, due to the adoption of the adjustment assembly introduced in the first aspect, the space layout of the lower part of the seat cushion of the seat is easy to carry out. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other features, properties and advantages of the present application will become more obvious through the following description in conjunction with the drawings and embodiments. The same reference numerals in the drawings always represent the same features. It should be noted that these drawings are only examples and are not drawn according to the condition of equal proportion, and should not be used to limit the actual scope of protection required by the present application, where:

[0024] Figure 1 It is a schematic diagram of a seat system of an embodiment.

[0025] Figure 2A And Figure 2B It is a schematic structural diagram of an adjustment assembly of a comparative solution.

[0026] Figures 3A to 3D It is a schematic structural diagram of adjustment assemblies of some comparative solutions.

[0027] Figures 4A to 4D It is a schematic structural diagram of the adjustment assembly of the first embodiment.

[0028] Figures 5A to 5C Structural schematic diagram of the adjustment component of the second embodiment.

[0029] Figures 6A to 6D Structural schematic diagram of the adjustment component of the third embodiment.

[0030] Reference numerals:

[0031] 100 - Seat system

[0032] 10, 10a - Adjustment component

[0033] 1, 1a, 1b, 1c - Gearbox

[0034] 11 - Housing

[0035] 110 - Outer wall surface in the second direction

[0036] 1101 - First part

[0037] 1102 - Second part

[0038] 111 - First half - shell

[0039] 112 - Second half - shell

[0040] 113 - Half - shell body

[0041] 114 - Connecting body

[0042] 115 - Sleeve part

[0043] 116 - Protrusion

[0044] 117 - Connecting cap

[0045] 1100 - Installation space

[0046] 12 - Gear set

[0047] 121 - First gear

[0048] 101 - First axis

[0049] 122 - Second gear

[0050] 102 - Second axis

[0051] 123 - Intermediate gear

[0052] 2 - Receiving component

[0053] 21 - First receiving part

[0054] 22 - Second receiving part

[0055] 23 - Opening

[0056] 3 - Driving part

[0057] 4 - Output part

[0058] 41 - First output part

[0059] 42 - Second output part

[0060] 5 - Flexible shaft

[0061] 51 - First flexible shaft

[0062] 52 - Second flexible shaft

[0063] 5a - Rigid shaft

[0064] 61 - Lower slide rail

[0065] 611 - Track

[0066] 612 - Buffer part

[0067] 62 - Upper slide rail

[0068] 621 - Accommodating chamber

[0069] 20 - Seat

[0070] 201 - Backrest

[0071] 202 - Seat cushion

[0072] 30 - Seat slide rail. Detailed implementation manners

[0073] Now, reference will be made in detail to the various embodiments of the present application, examples of which are shown in the drawings and described as follows. Although the present application will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present application to those exemplary embodiments. On the contrary, the present application is intended to cover not only these exemplary embodiments, but also various alternative forms, modifications, equivalent forms and other embodiments that may be included within the spirit and scope of the present application as defined by the appended claims.

[0074] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "lateral, vertical, upright, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0075] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. Without additional statements, these terms have no special meanings, and thus should not be construed as limiting the protection scope of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some of the terms mentioned in the specification of this application may be selected by the applicant according to his or her judgment, and their detailed meanings are described in the relevant parts of this description. In addition, it is required to understand this application not only through the actual terms used, but also through the meanings implied by each term.

[0076] Meanwhile, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment" and / or "an embodiment" mean a certain feature, structure or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" mentioned twice or more at different positions in this specification is not necessarily referring to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this application can be appropriately combined.

[0077] Although the adjustment component disclosed in the embodiments of this application is applicable to vehicle seats and has the advantages of simple and compact structure, reliable operation, etc. on the basis that the seats are easy to be arranged in space, it is not limited thereto. For example, it can be applicable to the application scenarios of other transportation means, such as heavy vehicles, railway trains, ships, and can also be applicable to fixed places, such as meeting halls, auditoriums, cinemas, etc.

[0078] It should be noted that in the following description, the first direction, the second direction, and the third direction can, for example, correspond to the X, Y, and Z directions in the drawings, and can also be referred to as the length direction, the width direction, the height direction, or the longitudinal direction, the transverse direction, the vertical direction, without being limited thereto.

[0079] As Figure 1 shown, the seat system 100 includes an adjustment component 10 and a seat 20 to be introduced in detail in the following embodiments, and the seat 20 is connected to the adjustment component 10. The adjustment function can, for example, be to adjust the angle of the backrest 201 of the seat 20 relative to the seat cushion 202 to improve the comfort of the vehicle seat, or even to lay the backrest 201 flat relative to the seat cushion 202 to provide a large bed mode for the seat, or the backrest 201 can be folded relative to the seat cushion 202 to provide more storage space in the vehicle to place more items.

[0080] The installation position of the adjustment component 2 on the seat is similar to as Figure 2BAs shown, the vehicle seat slide rail 30, which is generally disposed below the seat 20, is provided with a driving member 3 (such as a driving motor) in the middle in the width direction of the seat. The gear boxes 1 on both sides are connected by a shaft.

[0081] Reference Figures 4A to 6D As shown in the first, second, and third embodiments, the adjusting assembly 10 includes a gear box 1 and a receiving member 2.

[0082] The gear box 1 includes a housing 11 and a gear set 12. The gear set 12 is located inside the installation space 110 defined by the housing 11. The gear set 12 includes a first gear 121 and a second gear 122. The first gear 121 rotates around a first axis 101, and the second gear 122 rotates around a second axis 102. The first axis 101 is perpendicular to the second axis 102. The direction in which the first axis 101 coincides or is parallel is defined as the first direction, that is, the X direction in the figure.

[0083] The transmission relationship of the gear box 1 of the adjusting assembly 10 can be similar to that shown in Figure 2A and Figure 2B As shown, in some embodiments, the adjusting assembly 10 further includes a driving member 3 and an output member 4. The output member 4 is coaxially arranged with the first gear 121 and can be driven by the first gear 121 to rotate around the first axis 101. The driving member 3 can be a driving motor. The form of the output member 4 can be a lead screw. The lead screw can cooperate with a nut to form a lead screw-nut mechanism to output the rotation of the lead screw as a linear motion, or it can directly output rotation, and it is not limited thereto.

[0084] However, different from Figure 2A and Figure 2B As shown, the driving member 3, the shaft 5a, and the input gear of the gear box 1a need to be at the same height. In the embodiment, the driving member 3 and the input gear of the gear box 1 are not flush, that is, not at the same height. That is, the position of the driving member 3 in the third direction is not flush with the second gear 1222. The second gear 1222 is driven to rotate around the second axis 102 by connecting the second gear 1222 through a flexible shaft 5. The meaning of the flexible shaft 5 here is opposite to that of a rigid shaft. The meaning of the flexible shaft is similar to its general meaning in the art, that is, the flexible shaft is a shaft with very little rigidity and elasticity that can be freely bent for transmission. It is used to connect two shafts with different axes, not in the same direction, or with relative movement to transmit rotational motion and torque.

[0085] In some embodiments, similar to Figure 2A and Figure 2BSimilarly, the adjusting assembly 10 includes a first output member 41 and a second output member 42 respectively located on the first side and the second side in the second direction. A gearbox 1 and a receiving member 2 are respectively and correspondingly provided. A single driving member 3 is located between the first output member 41 and the second output member 42 in the second direction. The single driving member 3 is connected to a second gear 1222 on the first side through a first flexible shaft 51 and connected to the second gear 1222 on the second side through a second flexible shaft 52.

[0086] Combined Figure 3B and Figure 3C As shown, the receiving member 2 includes a first receiving portion 21 and a second receiving portion 22. The first receiving portion 21 and the second receiving portion 22 are respectively located on both sides of the housing 11 in the second direction (i.e., the Y direction). The first receiving portion 21 and the second receiving portion 22 provide an opening 23 in the second direction to receive the gearbox 1. The receiving member 2 can be Figure 3B and Figure 3C As shown, the receiving member 2 includes a lower slide rail 61. The track 611 of the lower slide rail 61 or a buffer member 612 located on the track provides the first receiving portion 21 and the second receiving portion 22, but is not limited thereto.

[0087] However, the positional relationship between the gearbox 1 and the receiving member 2 is different from the comparative solution. The housing 11 of the embodiment respectively has second direction outer wall surfaces 110 at both ends in the second direction. The second direction outer wall surfaces 110 pass through the opening 23 along the third direction (i.e., the Z direction); the first direction, the second direction, and the third direction are perpendicular to each other, and an acute angle β is formed between the second axis 102 and the second direction.

[0088] The beneficial effects of the embodiments introduced above include but are not limited to that through the inclined structure in which an acute angle is formed between the axis of the second gear of the gearbox of the adjusting assembly and the second direction, and at the same time the second direction outer wall surface of the gearbox housing passes through the opening along the third direction, it not only avoids the large distortion of the flexible shaft as Figure 3A shown, but also avoids the gearbox as Figure 3B and Figure 3C shown from pressing the buffer member due to the inclined setting, and there is no need to unnecessarily provide more idler wheels to adjust the height as Figure 3D shown. This makes the adjusting assembly have the advantages of simple and compact structure, reliable operation, etc. on the basis of being easy to arrange in the seat space.

[0089] In some embodiments, the gear portion of the first gear 121 is a turbine gear, the gear portion of the second gear 1222 is a worm gear, the gear set 12 further includes an intermediate gear 123 meshing with the first gear 121 and the second gear 1222 respectively as an idler gear, and the first gear 121, the intermediate gear 123, and the second gear 1222 are arranged in a stacked manner in the third direction. Here, the worm gear, that is, the outer part of the second gear 1222 is a spiral structure of a worm. The transmission relationship between the second gear and the first gear is essentially a turbine-worm transmission. The turbine-worm is used to realize the transmission relationship in which the input shaft and the output shaft are perpendicular to each other, and its structure is simple, compact and reliable. Here, the intermediate gear 123 serves as an idler gear, and its meaning is similar to the common meaning in the art. That is, an idler gear refers to a gear that plays a transmission role between two non-contact transmission gears, meshing with both of these two gears at the same time, only changing the rotation direction and not changing the transmission ratio, and is called an idler gear. Different from the comparative scheme, there is no need to adapt to the different heights of the driving member 3 by changing the number of intermediate gears 123.

[0090] Refer to Figures 4A to 4D As shown in the figure, in the first embodiment, the housing 11 includes a first half-shell 111 and a second half-shell 112. The first half-shell 111 and the second half-shell 112 can be assembled in the Y direction to form the housing 11. The first half-shell 111 and the second half-shell 112 respectively provide outer wall surfaces 110 in the second direction; the portion of the outer wall surface 110 corresponding to the second gear 122 extends in the third direction. The first half-shell 111 or the second half-shell 112 located on the input side of the second gear 1222 has a half-shell body 113 and a connecting body 114 detachably connected to the half-shell body 113. The connecting body 114 has a mounting hole 1140 with an extending direction of the second axis 102 to provide support for the second gear 122. As Figure 4C shown, through a connecting body 114 similar to an insert block, it is possible to adapt to different installation heights by processing connecting bodies 114 with different inclination angles. However, since the assembly of the connecting body 114 and the half-shell body 113 is also required on the basis of assembling the first half-shell 111 and the second half-shell 112, the assembly process is relatively inconvenient.

[0091] Refer to Figures 5A to 5CAs shown, different from the first embodiment, in the second embodiment, an inclined wall surface structure is adopted. The housing 11 includes a first half-shell 111 and a second half-shell 112. The first half-shell 111 and the second half-shell 112 can be assembled in the second direction to form the housing 11. The first half-shell 111 and the second half-shell 112 respectively provide an outer wall surface 110 in the second direction. The outer wall surface 110 in the second direction includes a first part 1101 and a second part 1102. The first part 1101 passes through the opening 23 in the third direction. The second part 1102 is the part corresponding to the second gear 122. The second part 1102 is perpendicular to the second axis 102 and forms an acute angle with the third direction. A sleeve member 115 can be detachably installed on the second part 1102. The sleeve member 115 can be coaxially sleeved on the second gear 1222 to provide support for the second gear 122. By adopting a sloped structure of the second part 1102 to cooperate with an inclined bushing, its processing and assembly processes are simpler than those of the first embodiment.

[0092] Referring to Figures 6A to 6D As shown, different from the first and second embodiments, the assembly direction of the third embodiment is different. That is, the housing 11 includes a first half-shell 111 and a second half-shell 112. The first half-shell 111 and the second half-shell 112 can be assembled in the first direction to form the housing 11. The outer wall surface 110 in the second direction is jointly provided and formed by the first half-shell 111 and the second half-shell 112. The outer wall surface 110 in the second direction includes a first part 1101 and a second part 1102. The first part 1101 passes through the opening 23 in the third direction. The second part 1102 is the part corresponding to the second gear 122. The second part 1102 is perpendicular to the second axis 102 and forms an acute angle with the third direction. The beneficial effect of this is that the assembly surface of the two half-shells is perpendicular to the flexible shaft, and its assembly process is simpler. However, it can be understood that in any of the first, second, or third embodiments, it is possible to achieve the advantages such as simple and compact structure, reliable operation, etc. on the basis that the adjustment assembly is easy to be spatially arranged on the seat as introduced above.

[0093] In addition, continuing to refer to Figures 4A to 6D As shown, for the housing 11 assembled by half-shells, in some embodiments, both the first half-shell 111 and the second half-shell 112 can have a protrusion 116 at one end in the third direction. The protrusions 116 of the two are snap-connected by a connecting cap 117, so as to further improve the assembly reliability of the housing 11.

[0094] In summary, the beneficial effects of the adjustment component and the seat introduced in the above embodiments include, but are not limited to, by forming an acute angle between the axis of the second gear of the gearbox of the adjustment component and the second direction, and at the same time, the structure in which the outer wall surface of the gearbox housing in the second direction passes through the opening in the third direction, it not only avoids the large distortion of the flexible shaft as shown in Figure 3A , but also avoids the compression of the buffer member by the gearbox as shown in Figure 3B and Figure 3C , and there is no need to unnecessarily arrange more idler wheels to adjust the height as shown in Figure 3D . Therefore, on the basis that the adjustment component is easy to arrange in the seat, it has the advantages of simple and compact structure, reliable operation, etc.

[0095] Although this application is disclosed above with preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of this application. Therefore, any modification, equivalent change and decoration made to the above embodiments based on the technical essence of this application without departing from the technical solution of this application shall fall within the protection scope defined by the claims of this application.

Claims

1. An adjustment assembly (10), characterized in that: include: A gear box (1), comprising a housing (11) and a gear set (12), wherein the gear set (12) is located inside an installation space (1100) defined by the housing (11); the gear set (12) comprises a first gear (121) and a second gear (122), wherein the first gear (121) rotates around a first axis (101), and the second gear (122) rotates around a second axis (102), the first axis (101) is perpendicular to the second axis (102), and a direction in which the first axis (101) is coincident with or parallel to the first axis (101) is defined as a first direction; A receiving component (2), comprising a first receiving portion (21) and a second receiving portion (22), wherein the first receiving portion (21) and the second receiving portion (22) are respectively located on both sides of the housing (11) in a second direction, and the first receiving portion (21) and the second receiving portion (22) provide an opening (23) in the second direction for receiving the gear box (1); The shell (11) has second-direction outer wall surfaces (110) at both ends of the second direction, and the second-direction outer wall surfaces (110) pass through the opening (23) along the third direction; The first direction, the second direction and the third direction are perpendicular to each other, and an acute angle is formed between the second axis (102) and the second direction.

2. The adjustment assembly (10) according to claim 1, characterized in that The gear portion of the first gear (121) is a turbine gear, and the gear portion of the second gear (122) is a worm gear. The gear set (12) further comprises an intermediate gear (123) meshing with the first gear (121) and the second gear (122) as an idler gear. The first gear (121), the intermediate gear (123), and the second gear (122) are stacked in sequence in the third direction.

3. The adjustment assembly (10) according to claim 1, characterized in that The housing (11) comprises a first half shell (111) and a second half shell (112); the first half shell (111) and the second half shell (112) can be assembled in the second direction to form the housing (11); the first half shell (111) and the second half shell (112) respectively provide an outer wall surface (110) in the second direction; a portion of the outer wall surface (110) in the second direction corresponding to the second gear (122) extends along a third direction; the first half shell (111) or the second half shell (112) located on the input end side of the second gear (122) comprises a half shell body (113) and a connecting body (114) detachably connected to the half shell body (113); the connecting body (114) comprises a mounting hole (1140) extending in the direction of the second axis (102) to provide support for the second gear (122).

4. The adjustment assembly (10) according to claim 1, characterized in that The shell (11) comprises a first half shell (111) and a second half shell (112); the first half shell (111) and the second half shell (112) can be assembled in the second direction to form the shell (11); the first half shell (111) and the second half shell (112) respectively provide an outer wall surface (110) in the second direction; the outer wall surface (110) in the second direction comprises a first part (1101) and a second part (1102); the first part (1101) passes through the opening (23) along the third direction; the second part (1102) is a part corresponding to the second gear (122); the second part (1102) is perpendicular to the second axis (102) and forms an acute angle with the third direction; a sleeve member (115) can be detachably installed on the second part (1102); the sleeve member (115) can be coaxially sleeved on the second gear (122) to provide support for the second gear (122).

5. The adjustment assembly (10) according to claim 1, characterized in that The shell (11) comprises a first half shell (111) and a second half shell (112); the first half shell (111) and the second half shell (112) can be assembled in the first direction to form the shell (11); the outer wall surface (110) in the second direction is formed by assembling the first half shell (111) and the second half shell (112); the outer wall surface (110) in the second direction comprises a first portion (1101) and a second portion (1102); the first portion (1101) passes through the opening (23) along a third direction; the second portion (1102) is a portion corresponding to the second gear (122); the second portion (1102) is perpendicular to the second axis (102) and forms an acute angle with the third direction.

6. The adjustment assembly (10) according to any one of claims 3 to 5, characterized in that: The first half shell (111) and the second half shell (112) both have a protrusion (116) at one end in the third direction, and the protrusions (116) of the two are connected by a connecting cap (117) in a buckled manner.

7. The adjustment assembly (10) according to claim 1, characterized in that The adjustment assembly (10) further comprises a driving member (3) and an output member (4); the driving member (3) is not flush with the second gear (122) in a third direction, is connected to the second gear (122) via a flexible shaft (5), and can drive the second gear (122) to rotate around a second axis (102); the output member (4) is coaxially arranged with the first gear (121), and can be driven by the first gear (121) to rotate around the first axis (101).

8. The adjustment assembly (10) according to claim 7, characterized in that The adjustment assembly (10) comprises a first output member (41) and a second output member (42) respectively located on the first side and the second side of the second direction, and each of which is provided with a gear box (1) and a receiving component (2) respectively; a single driving member (3) is located between the first output member (41) and the second output member (42) in the second direction; the single driving member (3) is connected to the second gear (122) located on the first side via a first flexible shaft (51), and is connected to the second gear (122) located on the second side via a second flexible shaft (52).

9. The adjustment assembly (10) according to claim 1, characterized in that The accommodating component (2) comprises a lower slide rail (61), and a track (611) of the lower slide rail (61) or a buffer (612) located on the track provides the first accommodating portion (21) and the second accommodating portion (22).

10. A seat system (100), characterized in that: It comprises an adjustment assembly (10) as claimed in any one of claims 1 to 9, and a seat (20), wherein the seat (20) is connected to the adjustment assembly (10).

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