Manual differential mechanism, door bridge transmission assembly and vehicle model

Abstract

The embodiment of the utility model provides a manual differential mechanism, a door bridge transmission assembly and a vehicle model, and the manual differential mechanism comprises a mounting seat which is provided with a plurality of first concave-convex matching structures; the first output mechanism is rotationally connected with the mounting base, the first output mechanism comprises a first transmission shaft and a first clamping structure, and the first clamping structure can be synchronously and rotationally connected with the first transmission shaft; the second output mechanism is rotationally connected with the mounting base, the second output mechanism comprises a second transmission shaft and a second clamping structure, and the second clamping structure and the second transmission shaft are fixed in the circumferential direction and can be connected in a relative sliding mode in the axial direction; the shifting block is arranged on the mounting base in a relative sliding mode and abuts against the second clamping structures, the shifting block is provided with a plurality of second concave-convex matching structures, and in the synchronous state or the differential state, the corresponding first concave-convex matching structures are matched with the second concave-convex matching structures, so that the manual differential mechanism can well maintain the state under external force interference, and the manual differential mechanism is convenient to use. And the user experience is better.

Description

Technical Field

[0001] This utility model relates to the field of vehicle model technology, and in particular to a manual differential, a portal axle drive assembly, and a vehicle model. Background Technology

[0002] A vehicle model is a model made based on a real vehicle, according to its proportions. Some highly detailed vehicle models are identical to real vehicles in shape, structure, color, and interior components. In practical applications, vehicle models can be used as decorative items to adorn the environment or collected as souvenirs.

[0003] High-end vehicle models are typically equipped with a manual differential to simulate the differential function of a real car. The manual differential allows manual control of the two drive wheels to operate in either a differential state (rotating at different speeds) or a synchronized state (rotating synchronously at the same speed). However, in existing technology, the manual differential on vehicle models is prone to deviating from its current state under external interference after switching modes. For example, if a user switches to differential mode manually, the vehicle model may experience bumps while driving and then switch back to synchronized mode, negatively impacting the user experience. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a manual differential, a portal axle drive assembly, and a vehicle model that can maintain a relatively good differential or synchronous state under external force interference, resulting in a better user experience.

[0005] In a first aspect, this utility model provides a manual differential, comprising: a mounting base having multiple first concave-convex mating structures; a first output mechanism rotatably connected to the mounting base, the first output mechanism including a first drive shaft and a first engaging structure, the first engaging structure being synchronously rotatably connected to the first drive shaft; a second output mechanism rotatably connected to the mounting base, the second output mechanism including a second drive shaft and a second engaging structure, the second engaging structure being circumferentially fixed to the second drive shaft and slidably connected relative to it axially; and a shift block slidably disposed on the mounting base and abutting against the second engaging structure, the shift block being provided with... There are multiple second concave-convex mating structures; the toggle block can slide relative to the mounting base to a first position to drive the second engaging structure to slide to engage with the first engaging structure, and the corresponding first concave-convex mating structure and the second concave-convex mating structure engage to keep the first drive shaft and the second drive shaft in a circumferentially fixed synchronous state; and the toggle block can slide relative to the mounting base from the first position to a second position to drive the second engaging structure to slide to separate from the first engaging structure, and the corresponding first concave-convex mating structure and the second concave-convex mating structure engage to keep the first drive shaft and the second drive shaft in a differential state that can rotate relative to each other.

[0006] The manual differential provided by the first aspect of this utility model has at least the following beneficial effects:

[0007] By setting multiple first concave-convex mating structures on the mounting base and multiple second concave-convex mating structures on the lever, after the lever drives the second engaging structure to slide and engage with the first engaging structure, the corresponding first and second concave-convex mating structures engage. Under external force interference, the first and second drive shafts can still maintain a circumferentially fixed synchronous state. After the lever drives the second engaging structure to slide and separate from the first engaging structure, the corresponding first and second concave-convex mating structures engage. Under external force interference, the first and second drive shafts maintain a differential state that can rotate relative to each other. The manual differential has good stability, which is beneficial to improving the user experience.

[0008] In one embodiment of this implementation, one of the first concave-convex mating structure and the second concave-convex mating structure is constructed as a protrusion, and the other is constructed as a groove. A plurality of protrusions are arranged at equal intervals along the sliding direction of the push block relative to the mounting base, and a plurality of grooves are arranged at equal intervals along the sliding direction of the push block relative to the mounting base. The distance between two adjacent protrusions is equal to the distance between two adjacent grooves.

[0009] In one embodiment of this implementation, the mounting base includes a mounting cover and a mounting shell. The mounting cover has a first sliding groove, and the mounting shell has a second sliding groove. The lever includes a lever, a limiting block, and a push rod connected in sequence. The lever slides in cooperation with the first sliding groove. The two sides of the limiting block abut against the mounting cover and the mounting shell, respectively. The push rod slides in cooperation with the second sliding groove and abuts against the second engaging structure.

[0010] In one embodiment of this implementation, the mounting cover has a third sliding groove on the side facing the mounting shell, the limiting block slides in cooperation with the third sliding groove, and the first sliding groove is formed on the bottom wall of the third sliding groove.

[0011] In one embodiment of this implementation, the first concave-convex fitting structure is disposed on the side wall of the third slide groove, and the second concave-convex fitting structure is disposed on the side of the limiting block; and / or, the first concave-convex fitting structure is disposed on the side wall of the first slide groove, and the second concave-convex fitting structure is disposed on the side of the lever; and / or, the first concave-convex fitting structure is disposed on the side wall of the second slide groove, and the second concave-convex fitting structure is disposed on the side of the push rod.

[0012] In one embodiment of this implementation, an annular groove is provided on the outer periphery of the second engaging structure, and one end of the push rod facing away from the limiting block extends into the annular groove.

[0013] In one embodiment of this implementation, the first engagement structure is a first end face gear, and the second engagement structure is a second end face gear. When the toggle block slides relative to the mounting base to a first position, the first end face gear and the second end face gear mesh. When the toggle block slides relative to the mounting base to a second position, the first end face gear and the second end face gear disengage.

[0014] In one embodiment of this implementation, the first output mechanism includes a bevel gear, the bevel gear and the first end face gear are an integral structure, and the bevel gear is used to connect with the travel drive.

[0015] Secondly, this utility model provides a portal gear drive assembly, which includes a first output reducer, a second output reducer, and a manual differential as described in any embodiment of the first aspect of the embodiment. The first output reducer is connected to the first drive shaft of the manual differential, and the second output reducer is connected to the second drive shaft of the manual differential.

[0016] The portal transmission assembly provided by the second aspect of this utility model has at least the following beneficial effects:

[0017] By incorporating the manual differential of the first aspect of the embodiment into the portal axle drive assembly, the portal axle drive assembly can switch between synchronous and differential states more stably, which is beneficial to improving the user experience.

[0018] Thirdly, this utility model provides a vehicle model, which includes a first wheel, a second wheel, and the portal axle transmission assembly described in the second aspect of the embodiment. The output end of the first output reducer is connected to the first wheel, and the output end of the second output reducer is connected to the second wheel.

[0019] The vehicle model provided by the third aspect of this utility model has at least the following beneficial effects:

[0020] By incorporating the portal axle drive assembly of the second embodiment into the vehicle model, the vehicle model can stably switch between a synchronous state where the first and second wheels rotate synchronously or a differential state where they can rotate relative to each other, resulting in a better user experience.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the portal bridge transmission assembly provided in this embodiment of the utility model;

[0024] Figure 2 yes Figure 1 A schematic diagram of the portal bridge drive assembly in its disassembled state;

[0025] Figure 3 yes Figure 1 A three-dimensional structural diagram of the manual differential in the portal axle transmission assembly;

[0026] Figure 4 yes Figure 3 A schematic diagram of the manual differential in its disassembled state;

[0027] Figure 5 yes Figure 3 A cross-sectional structural diagram of a manual differential;

[0028] Figure 6 yes Figure 3 A bottom view of the manual differential's paddle shifters and mounting cover.

[0029] Figure label:

[0030] Portal drive assembly 1000; manual differential 100; first output reducer 200; second output reducer 300; steering drive 400; mounting base 10; first concave-convex mating structure 101; mounting cover 11; first slide groove 1101; third slide groove 1102; mounting shell 12; upper seat 121; lower seat 122; second slide groove 1201; first output mechanism 20; first drive shaft 21; first universal ball joint 215; first engaging structure 22; bevel gear 23; transmission gear 24; second output mechanism 30; second drive shaft 31; second universal ball joint 315; second engaging structure 32; annular groove 3201; lever 40; second concave-convex mating structure 401; lever 41; limit block 42; push rod 43. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Please see Figure 1 , Figure 1 This is a three-dimensional structural diagram of the portal axle transmission assembly 1000 provided in this embodiment of the present invention. This embodiment of the present invention provides a vehicle model, which includes a first wheel (not shown), a second wheel (not shown), and the portal axle transmission assembly 1000. The first wheel is connected to one output end of the portal axle transmission assembly 1000, and the second wheel is connected to the other output end of the portal axle transmission assembly 1000. Specifically, the vehicle model can be a car model, a train model, or other models. By adding the portal axle transmission assembly 1000 of this embodiment to the vehicle model, the vehicle model can stably switch between a synchronous state where the first and second wheels rotate synchronously or a differential state where they can rotate relative to each other, resulting in a better user experience.

[0037] Please see Figure 1 and Figure 2 , Figure 2 yes Figure 1 A schematic diagram of the portal gearbox assembly 1000 in its disassembled state. This embodiment of the invention provides a portal gearbox assembly 1000, which includes a manual differential 100, a first output reducer 200, and a second output reducer 300. The first output reducer 200 is connected to the first drive shaft 21 of the manual differential 100, and the second output reducer 300 is connected to the second drive shaft 31 of the manual differential 100. Specifically, the output end of the first output reducer 200 is connected to the first wheel, and the output end of the second output reducer 300 is connected to the second wheel. By incorporating the manual differential 100 of this embodiment into the portal gearbox assembly 1000, the portal gearbox assembly 1000 can switch between synchronous and differential states more stably, which is beneficial to improving the user experience.

[0038] In this embodiment, the portal transmission assembly 1000 further includes a steering drive 400, which is mounted on the manual differential 100 and connected to the first output reducer 200 and the second output reducer 300 to drive the first output reducer 200 and the second output reducer 300 to rotate relative to the manual differential 100 to achieve the steering function.

[0039] Please see Figures 2 to 6 , Figure 3 yes Figure 1 A three-dimensional structural diagram of the manual differential 100 in the portal axle drive assembly 1000; Figure 4 yes Figure 3 A schematic diagram of the manual differential 100 in its disassembled state; Figure 5 yes Figure 3 A cross-sectional view of the manual differential 100. Figure 6 yes Figure 3 A bottom view of the paddle shifter 40 and mounting cover 11 of a manual differential 100. This embodiment of the invention provides a manual differential 100, which includes a mounting base 10, a first output mechanism 20, a second output mechanism 30, and a paddle shifter 40. The mounting base 10 is provided with multiple first concave-convex mating structures 101. The first output mechanism 20 is rotatably connected to the mounting base 10 and includes a first drive shaft 21 and a first engaging structure 22, which is synchronously rotatably connected to the first drive shaft 21. The second output mechanism 30 is rotatably connected to the mounting base 10 and includes a second drive shaft 31 and a second engaging structure 32, which is circumferentially fixed to the second drive shaft 31 and axially slidably connected to it. The paddle shifter 40 is slidably disposed on the mounting base 10 and abuts against the second engaging structure 32, and the paddle shifter 40 is provided with multiple second concave-convex mating structures 401.

[0040] The lever 40 can slide relative to the mounting base 10 to a first position, causing the second engaging structure 32 to slide and engage with the first engaging structure 22. The corresponding first and second engaging structures 101 and 401 engage, ensuring the first drive shaft 21 and the second drive shaft 31 remain circumferentially fixed and synchronized. The lever 40 can also slide relative to the mounting base 10 from the first position to a second position, causing the second engaging structure 32 to slide and disengage from the first engaging structure 22. The corresponding first and second engaging structures 101 and 401 engage, ensuring the first drive shaft 21 and the second drive shaft 31 maintain a differentially rotatable state.

[0041] Specifically, one end of the first drive shaft 21 is fixedly connected to the first engaging structure 22, and the other end is provided with a first universal joint 215. The first universal joint 215 is used to rotatably connect with the first output reducer 200 to provide the steering freedom of the first wheel. One end of the second drive shaft 31 is circumferentially fixed to the second engaging structure 32 and axially slidably connected to it. The other end is provided with a second universal joint 315. The second universal joint 315 is used to rotatably connect with the second output reducer 300 to provide the steering freedom of the second wheel.

[0042] By providing multiple first concave-convex mating structures 101 on the mounting base 10 and multiple second concave-convex mating structures 401 on the lever 40, after the lever 40 drives the second engaging structure 32 to slide and engage with the first engaging structure 22, the corresponding first concave-convex mating structures 101 and second concave-convex mating structures 401 engage. Under external force interference, the first drive shaft 21 and the second drive shaft 31 can still maintain a circumferentially fixed synchronous state. After the lever 40 drives the second engaging structure 32 to slide and separate from the first engaging structure 22, the corresponding first concave-convex mating structures 101 and second concave-convex mating structures 401 engage. Under external force interference, the first drive shaft 21 and the second drive shaft 31 maintain a differential state that can rotate relative to each other. The manual differential 100 has good stability, which is beneficial to improving the user experience.

[0043] In one embodiment of this implementation, please refer to Figures 2 to 6 In the first convex-concave mating structure 101 and the second convex-concave mating structure 401, one is constructed as a protrusion and the other as a groove. Multiple protrusions are arranged at equal intervals along the sliding direction of the lever 40 relative to the mounting base 10, and multiple grooves are arranged at equal intervals along the sliding direction of the lever 40 relative to the mounting base 10. The distance between two adjacent protrusions is equal to the distance between two adjacent grooves. This arrangement ensures a stable fit between the protrusions and grooves and a relatively simple structure. Furthermore, it guarantees accurate engagement of the corresponding protrusions and grooves in both differential and synchronous states, achieving stable state switching.

[0044] In this embodiment, the first convex-concave mating structure 101 is constructed as a protrusion, and the second convex-concave mating structure 401 is constructed as a groove. The protrusions and grooves are divided into two groups, with two protrusions in each group and three grooves in each group. The two groups of grooves are respectively formed on opposite sides of the lever block 40 perpendicular to the sliding direction, and the two groups of protrusions are located on the mounting base 10 at positions corresponding to the two groups of grooves. It should be noted that... Figure 6The engagement state of the lever 40 and the mounting base 10 shown is the differential state, in which the four protrusions engage with the four grooves on the left side. When the engagement state of the lever 40 and the mounting base 10 is the synchronous state, the four protrusions engage with the four grooves on the right side. The engagement of multiple grooves and protrusions ensures that the manual differential 100 can always maintain its current state under external force interference, improving the user experience.

[0045] In one embodiment of this implementation, please refer to Figures 3 to 6 The mounting base 10 includes a mounting cover 11 and a mounting shell 12. The mounting cover 11 has a first sliding groove 1101, and the mounting shell 12 has a second sliding groove 1201. The shift block 40 includes a shift lever 41, a limiting block 42, and a push rod 43 connected in sequence. The shift lever 41 slides in the first sliding groove 1101. The two sides of the limiting block 42 abut against the mounting cover 11 and the mounting shell 12, respectively. The push rod 43 slides in the second sliding groove 1201 and abuts against the second engaging structure 32. With this configuration, the mounting base 10 can provide a stable sliding guide for the shift block 40, which is beneficial to improving the anti-interference capability of the manual differential 100.

[0046] In this embodiment, the mounting housing 12 includes an upper seat 121 and a lower seat 122, which are fixedly connected and enclose a cavity. One end of the first drive shaft 21 is located inside the cavity and is connected to the first engaging structure 22. The other end of the first drive shaft 21 extends out of the cavity and is provided with a first universal ball joint 215. One end of the second drive shaft 31 is located inside the cavity and is slidably connected to the second engaging structure 32. The other end of the second drive shaft 31 extends out of the cavity and is provided with a second universal ball joint 315.

[0047] In one embodiment of this implementation, please refer to Figures 3 to 6 The mounting cover 11 has a third sliding groove 1102 on the side facing the mounting housing 12. The limiting block 42 slides in conjunction with the third sliding groove 1102. The first sliding groove 1101 is formed on the bottom wall of the third sliding groove 1102. This arrangement can further improve the guiding stability of the relative sliding of the shift block 40 and the mounting seat 10, which is conducive to further improving the anti-interference ability of the manual differential 100.

[0048] In one embodiment of this implementation, please refer to Figures 3 to 6The first concave-convex fitting structure 101 is disposed on the side wall of the third slide groove 1102, and the second concave-convex fitting structure 401 is disposed on the side of the limiting block 42; and / or, the first concave-convex fitting structure 101 is disposed on the side wall of the first slide groove 1101, and the second concave-convex fitting structure 401 is disposed on the side of the lever 41; and / or, the first concave-convex fitting structure 101 is disposed on the side wall of the second slide groove 1201, and the second concave-convex fitting structure 401 is disposed on the side of the push rod 43. This configuration results in a relatively simple structure and enables a stable engagement between the first concave-convex fitting structure 101 and the second concave-convex fitting structure 401.

[0049] In this embodiment, the first convex-concave mating structure 101 is only provided on the side wall of the third slide groove 1102, and the second convex-concave mating structure 401 is only provided on the side of the limiting block 42. In other embodiments, the first convex-concave mating structure 101 may also be provided on the side wall of the first slide groove 1101 and the side wall of the second slide groove 1201, and the second convex-concave mating structure 401 may also be provided on the side of the lever 41 and the side of the push rod 43.

[0050] In one embodiment of this implementation, please refer to Figures 3 to 6 The second engaging structure 32 has an annular groove 3201 on its outer periphery, and the end of the push rod 43 facing away from the limiting block 42 extends into the annular groove 3201. With this configuration, the push rod 43 can drive the second engaging structure 32 to move to both sides, and the push rod 43 will not affect the rotational freedom of the second engaging structure 32.

[0051] In one embodiment of this implementation, please refer to Figures 3 to 6 The first engagement structure 22 is a first end-face gear, and the second engagement structure 32 is a second end-face gear. When the lever 40 slides relative to the mounting base 10 to the first position, the first end-face gear and the second end-face gear mesh. When the lever 40 slides relative to the mounting base 10 to the second position, the first end-face gear and the second end-face gear disengage. This configuration ensures a stable connection between the first engagement structure 22 and the second engagement structure 32, which is beneficial for the stable synchronous rotation of the first drive shaft 21 and the second drive shaft 31.

[0052] In one embodiment of this implementation, please refer to Figures 3 to 6 The first output mechanism 20 includes a bevel gear 23, which is integrally formed with a first end face gear. The bevel gear 23 is used to connect with a travel drive (not shown). Specifically, the first output mechanism 20 also includes a transmission gear 24, which meshes with the bevel gear 23 and is used to connect with the travel drive. The travel drive drives the transmission gear 24 to rotate and transmits power to the first drive shaft 21 through the bevel gear 23. By making the bevel gear 23 and the first end face gear an integral structure, the structural strength can be effectively improved, which is beneficial to improving the stability of the transmission.

[0053] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A manual differential, characterized in that The utility model relates to a kind of installation seat, first output mechanism and second output mechanism, and the installation seat is provided with multiple first concave-convex cooperation structures;First output mechanism is rotatably connected with the installation seat, and the first output mechanism includes first transmission shaft and first clamping structure, and the first clamping structure is synchronously rotatably connected with the first transmission shaft;Second output mechanism is rotatably connected with the installation seat, and the second output mechanism includes second transmission shaft and second clamping structure, and the second clamping structure is fixed in circumference with the second transmission shaft and is slidably connected along axial direction;Dial block is slidably arranged on the installation seat and is in abutment with the second clamping structure, and the dial block is provided with multiple second concave-convex cooperation structures;The dial block can be slid to first position relative to the installation seat, to drive the second clamping structure to slide to cooperation with the first clamping structure, and the corresponding first concave-convex cooperation structure and the second concave-convex cooperation structure cooperate, to make the first transmission shaft and the second transmission shaft keep fixed in circumference Synchronous state, and the dial block can be slid from the first position to second position relative to the installation seat, to drive the second clamping structure to slide to separate from the first clamping structure, and the corresponding first concave-convex cooperation structure and the second concave-convex cooperation structure cooperate, to make the first transmission shaft and the second transmission shaft keep differentially rotatable differential state. One of the first concave-convex cooperation structure and the second concave-convex cooperation structure is configured as convex point, and the other is configured as recess, and multiple convex points are sequentially and equally spaced along the sliding direction of the dial block relative to the installation seat, and multiple recesses are sequentially and equally spaced along the sliding direction of the dial block relative to the installation seat, and the interval distance of adjacent two convex points is equal to the interval distance of adjacent two recesses. The installation seat includes installation cover and installation shell, the installation cover is provided with first sliding slot, the installation shell is provided with second sliding slot, the dial block includes dial rod, limiting block and push rod sequentially connected, the dial rod is slidably matched with the first sliding slot, the limiting block is in abutment with installation cover and installation shell on both sides respectively, and the push rod is slidably matched with the second sliding slot and in abututment with the second clamping structure. The side of the installation cover towards the installation shell is provided with third sliding slot, the limiting block is slidably matched with the third sliding slot, and the first sliding slot is provided in the bottom wall of the third sliding slot. The first concave-convex cooperation structure is arranged on the side wall of the third sliding slot, and the second concave-convex cooperation structure is arranged on the side surface of the limiting block;And / or, the first concave-convex cooperation structure is arranged on the side wall of the first sliding slot, and the second concave-convex cooperation structure is arranged on the side surface of the dial rod;And / or, the first concave-convex cooperation structure is arranged on the side wall of the second sliding slot, and the second concave-convex cooperation structure is arranged on the side surface of the push rod. The outer periphery of the second clamping structure is provided with annular groove, and one end of the push rod away from the limiting block extends into the annular groove.

2. The manual differential according to claim 1, characterized in that ​ 3. The manual differential according to claim 1 or 2, characterized in that ​ 4. The manual differential according to claim 3, characterized in that ​ 5. The manual differential according to claim 4, characterized in that ​ 6. The manual differential according to claim 3, wherein, ​ 7. The manual differential according to claim 1, characterized in that The first clamping structure is a first face gear, and the second clamping structure is a second face gear. When the dialing block slides to a first position relative to the mounting base, the first face gear and the second face gear are engaged. When the dialing block slides to a second position relative to the mounting base, the first face gear and the second face gear are disengaged.

8. The manual differential according to claim 7, characterized in that The first output mechanism comprises a bevel gear, and the bevel gear and the first face gear are in an integrated structure. The bevel gear is used to be connected with a travel driver.

9. A door bridge drive assembly characterized by, The axle differential comprises a first output speed reducer, a second output speed reducer and the manual differential according to any one of claims 1 to 8. The first output speed reducer is connected with a first transmission shaft of the manual differential, and the second output speed reducer is connected with a second transmission shaft of the manual differential.

10. A vehicle model, characterized by The axle differential comprises a first output speed reducer, a second output speed reducer and the manual differential according to any one of claims 1 to 8. The first output speed reducer is connected with a first transmission shaft of the manual differential, and the second output speed reducer is connected with a second transmission shaft of the manual differential. The axle differential comprises a first output speed reducer, a second output speed reducer and the manual differential according to any one of claims 1 to 8. The first output speed reducer is connected with a first transmission shaft of the manual differential, and the second output speed reducer is connected with a second transmission shaft of the manual differential.

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