CN209839131U - Shift structure and derailleur - Google Patents

Abstract

The utility model provides a shift structure and derailleur, the shift structure includes: the interlocking plate comprises a body and two opposite bulges arranged on the body, and a through hole penetrating through the body is arranged between the two bulges; at least two gear shifting guide blocks connected with the interlocking plate and arranged side by side along the direction from one bulge to the other bulge; the gear shifting head is arranged in the through hole and can shift the gear shifting guide block and the interlocking plate; wherein, at least one protruding one end towards the shifting block of shifting is provided with first portion of dodging to dodge the guide block of shifting when the shifting block of shifting shifts the slant. The utility model provides a shift structure, at least one protruding one end of shifting the shifting block towards is provided with the first portion of dodging for provide the slant space of shifting, dodge the guide block of shifting when the slant is shifted, and then interfere when preventing the derailleur slant from shifting, the emergence of jamming phenomenon, compliance and driving comfort level when having improved the derailleur slant and shifting.

Description

Shift structure and derailleur

Technical Field

The utility model relates to a derailleur technical field particularly, relates to a shift structure and derailleur.

Background

At present, with the rapid development of the automobile industry, people have higher and higher requirements on driving comfort, manual transmission automobiles designed and produced several years ago or earlier, particularly large and medium automobiles such as passenger cars and trucks, generally do not consider or only consider that the oblique gear shifting performance of a transmission is improved by adjusting a gear shifting head and a gear shifting guide block, do not combine an interlocking plate and the gear shifting guide block to comprehensively research oblique gear shifting, do not have a good oblique gear shifting function, and cannot meet the requirements of customers on the gear shifting performance of the manual transmission.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

Therefore, the utility model discloses a first aspect provides a gear shift structure.

The second aspect of the present invention also provides a transmission.

In view of this, the utility model discloses a first aspect provides a shift structure, include: the interlocking plate comprises a body and two opposite bulges arranged on the body, and a through hole penetrating through the body is arranged between the two bulges; at least two gear shifting guide blocks connected with the interlocking plate and arranged side by side along the direction from one bulge to the other bulge; the gear shifting head is arranged in the through hole and can shift the gear shifting guide block and the interlocking plate; wherein, at least one protruding one end towards the shifting block of shifting is provided with first portion of dodging to dodge the guide block of shifting when the shifting block of shifting shifts the slant.

The utility model provides a shift structure, including interlocking board, two at least guide blocks and the shifting block of shifting, be provided with two archs on the interlocking board for block the guide block of shifting freely slide along the direction of shifting when shifting, be provided with the through-hole between two archs, for the rotation of the shifting block of shifting when shifting and the corresponding slip of the guide block of shifting under keeping off the position provide the space, the shifting block of shifting is inserted and is established in the through-hole of interlocking board, the shifting block of shifting can be stirred to the shifting block and the interlocking board, in order to realize shifting and the function of interlocking. Wherein, at least one protruding one end of shifting the shifting block towards being provided with first portion of dodging, also have first portion of dodging in at least one arch for provide the slant space of shifting, dodge when the slant shifts and shift the guide block, and then interference, the emergence of jamming phenomenon when preventing the derailleur slant to shift, compliance and driving comfort level when having improved the derailleur slant and shifting.

Specifically, the slant is shifted can be for shifting directly to another fender position that shifts the guide block place by the fender position that shifts the guide block place, and two keep off the skew symmetry setting, and then realize the slant of the structure of shifting through the shifting block that shifts and rise or the slant is fallen to keep off to avoid the slant to rise to keep off or the slant falls the emergence of interference, jamming phenomenon when keeping off, compliance and driving comfort when having improved the derailleur slant and shifting.

According to the utility model provides an foretell shift structure can also have following additional technical characterstic:

in above-mentioned technical scheme, preferably, two bellied one end towards the shifting block of shifting all is provided with first dodge portion, and the first dodge portion that sets up on two bellies uses the geometric centre line of through-hole as the symmetry axis, is central symmetry.

In this technical scheme, two protruding one ends of shifting the shifting block towards all are provided with first portion of dodging, and two first portions of dodging are the skew symmetry and set up, also set up the first portion of dodging in two archs and use the geometric centre line of through-hole as the symmetry axis, be central symmetry, and then when shifting the shifting block and rising and falling the fender, all can avoid the slant to rise to keep off and the slant is fallen the emergence of interference, jamming phenomenon when keeping off, compliance and driving comfort when having improved the derailleur slant and shifting.

Furthermore, the through holes are symmetrical along the sliding direction of the interlocking plate, and the interlocking plate is symmetrical as a whole.

In any one of the above technical solutions, preferably, the shift knob is provided with a second avoidance portion towards one end of the protrusion, and the second avoidance portion is arranged corresponding to the first avoidance portion.

In this technical scheme, the shifting block of shifting is provided with the second towards bellied one end and dodges the portion, and the second dodges the portion and corresponds first portion setting of dodging, and then provides with first portion of dodging when the slant shifts and dodges the space together to interference, jamming phenomenon's emergence when avoiding the slant to rise to keep off and the slant to descend to keep off has improved compliance and driving comfort level when the derailleur slant shifts.

In any one of the above technical solutions, preferably, the shift structure further includes: the shell comprises a guide groove, and two sides of the interlocking plate are connected with the guide groove; the gear shifting shaft is connected with the gear shifting head and can drive the gear shifting head to move so as to drive the interlocking plate and the gear shifting guide block to move; wherein, the both sides of body are provided with smooth portion, and the interlocking board passes through smooth portion and guide way sliding connection.

In this technical scheme, the structure of shifting still includes casing and selector shaft, and the body both sides are provided with smooth portion, and specifically, the body both sides are provided with smooth narrow long plane, are connected with the guide way of casing to realize the direction slip of interlocking board in the guide way, the selector shaft is connected with the shifting finger, rotates or pulls the selector shaft so that the shifting finger motion, and then drives interlocking board and the guide block removal of shifting, in order to realize the function of shifting.

Specifically, the interlocking board removes along the axis direction of selector shaft, and the selector shaft realizes rotary motion or along the translation motion of axis direction through the long arm of shifting that is connected with the selector shaft, and the selector shaft passes through splined connection with the shifting block, and the shifting block of shifting follows to rotate or remove to promote the fork head removal of a certain guide block of shifting, and then realize the function of shifting.

In any one of the above technical solutions, preferably, the shift guide block includes two opposite prongs, an accommodating groove is provided between the two prongs, and the protrusion can be inserted into the accommodating groove.

In this technical scheme, the guide block of shifting includes the jaw that two are relative set up, is provided with the holding tank between two jaws, and the arch can stretch into in the holding tank of each guide block of shifting to realize the limiting displacement to the guide block of shifting, and then stop the guide block of shifting when shifting on carrying out the same guide block of shifting and slide along the direction of shifting.

In any one of the above technical solutions, preferably, the first avoiding portion is located at one end of the protrusion far from the body, and the height of the first avoiding portion along the first direction is greater than the height of the fork head along the first direction; the first direction is the direction from one side close to the body to one side far away from the body.

In this technical scheme, first portion of dodging highly is greater than the fork along the height of first direction along the first direction, and then provides sufficient space for the motion of fork when shifting, avoids interfering, the emergence of jamming phenomenon, compliance and driving comfort when having improved the derailleur slant and shifting.

In any of the above technical solutions, preferably, the width of the through hole along the second direction is greater than the width of the prong along the second direction, and the width of the through hole along the second direction is less than the distance between two surfaces of two adjacent prongs facing away from each other along the second direction; wherein the second direction is a sliding direction of the interlocking plate in the guide groove.

In the technical scheme, the width of the through hole in the second direction is greater than the width of the fork along the second direction, and the width of the through hole in the second direction is less than the width of two adjacent forks, that is, the width of the through hole only allows one fork to pass through, so as to realize a gear shifting interlocking function, wherein the interlocking function means that the transmission cannot simultaneously engage two gears, that is, the gear shifting head cannot simultaneously and freely shift two gear shifting guide blocks.

In any of the above technical solutions, preferably, a distance from the first avoiding portion on one protrusion to the other protrusion along the second direction is smaller than a distance between two surfaces of two forks adjacent to each other along the second direction, which face away from each other.

In this technical scheme, the distance between the avoidance portion on one protrusion and the other protrusion along the second direction is less than the distance between two faces, which are deviated from each other, of two adjacent prongs along the second direction, that is, the distance between the two protrusions after the first avoidance portion is arranged still allows only one prong to pass through, so as to realize the interlocking function.

Furthermore, after the edges of the protrusions are chamfered, the distance between the two protrusions only allows one fork head to pass through, so that the interlocking function is guaranteed.

In any one of the above technical solutions, preferably, the two protrusions extend into the through hole, and an edge of one end of each of the two protrusions extending into the through hole is provided with a chamfer structure.

In this technical scheme, two archs stretch into in the through-hole, also two bellied partly be located the through-hole to make the shifting block contact with the part that stretches into the through-hole when shifting, also reduced the area of contact of shifting block and through-hole, and then reduced the friction of through-hole to the shifting block. The edge formed by the protrusions and the through holes is provided with a chamfer structure, specifically, the protrusions are square, the two protrusions and the through holes form four edges, and the chamfer structures on the four edges are C0.5 deburring chamfers.

In any one of the above technical solutions, preferably, the first avoiding portion and/or the second avoiding portion are/is of a chamfered structure.

In this technical scheme, first portion of dodging and second are the chamfer structure, simple structure, and can realize the effect of dodging.

According to the utility model discloses a second aspect still provides a derailleur, include: the shift structure provided by any one of the above technical solutions.

The utility model discloses the derailleur that the second aspect provided, because of including any one of above-mentioned technical scheme the structure of shifting, consequently have the whole beneficial effect of structure of shifting.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a partial schematic structural view of a shift structure according to an embodiment of the present invention;

fig. 2 shows another partial schematic structural view of a shifting structure according to an embodiment of the present invention;

fig. 3 shows a schematic structural view of an interlocking plate according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the gear shift structure according to an embodiment of the present invention during a diagonal gear shift;

fig. 5 is another schematic structural view of the shifting structure according to an embodiment of the present invention during a diagonal shift;

fig. 6 shows another partial schematic structure diagram of a gear shift structure according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

1 interlocking board, 10 bodies, 12 bulges, 14 through holes, 16 first avoidance parts, 18 smooth parts, 2 gear shifting guide blocks, 20 neutral gears and one gear guide blocks, 22 second gear and third gear guide blocks, 24 fourth gear and fifth gear guide blocks, 26 sixth gear guide blocks, 3 gear shifting blocks, 30 second avoidance parts, 4 shells, 5 gear shifting shafts and 6 gear shifting long arms.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The following describes a shift structure and a transmission according to some embodiments of the present invention with reference to fig. 1 to 6.

According to the utility model discloses an embodiment of the first aspect, the utility model provides a gear shifting structure, include: the interlocking plate 1 comprises a body 10 and two opposite protrusions 12 arranged on the body 10, wherein a through hole 14 penetrating through the body 10 is formed between the two protrusions 12; at least two shift guide blocks 2 connected to the interlock plate 1 and arranged side by side in a direction from one projection 12 to the other projection 12; the gear shifting block 3 is arranged in the through hole 14, and the gear shifting block 3 can shift the gear shifting guide block 2 and the interlocking plate 1; wherein, the one end of at least one arch 12 orientation shifting block 3 is provided with first dodge portion 16 to when shifting block 3 shifts gears in the slant, dodge shift guide block 2.

As shown in fig. 1 to fig. 6, the utility model provides a shift structure, including interlocking board 1, at least two guide block 2 and the shifting block 3 of shifting, be provided with two archs 12 on the interlocking board 1, be used for stopping the guide block 2 of shifting and freely slide along the direction of shifting when shifting, be provided with through-hole 14 between two archs 12, the rotation of shifting block 3 and the corresponding slip of the guide block 2 of shifting under keeping off the position provide the space when shifting, shift block 3 inserts and establishes in interlocking board 1's through-hole 14, shift block 3 can shift guide block 2 and interlocking board 1, in order to realize shifting and the function of interlocking. Wherein, at least one arch 12 is provided with first portion 16 of dodging towards the one end of shifting block 3 that shifts, also has first portion 16 of dodging on at least one arch 12 for provide the slant space of shifting, dodge when the slant shifts and shift guide block 2, and then interference when preventing the derailleur slant and shifting, the emergence of jamming phenomenon, compliance and driving comfort when having improved the derailleur slant and shifting.

Specifically, the slant gear shifting can be realized by directly shifting the gear of one gear shifting guide block 2 to the gear of another gear shifting guide block 2, and the two gears are arranged in a slant symmetry manner, so that the slant gear shifting structure is realized by the gear shifting head 3, interference and clamping stagnation phenomena are avoided during the slant gear shifting or the slant gear shifting, and the flexibility and the driving comfort degree during the slant gear shifting of the transmission are improved.

In the above embodiment, preferably, the first avoidance portions 16 are disposed at the ends of the two protrusions 12 facing the shift dial 3, and the first avoidance portions 16 disposed on the two protrusions 12 are centrosymmetric with respect to the geometric center line of the through hole 14.

As shown in fig. 3, in this embodiment, the two protrusions 12 are provided with first avoidance portions 16 towards one end of the shift knob 3, and the two first avoidance portions 16 are disposed in a skew symmetry manner, that is, the first avoidance portions 16 disposed on the two protrusions 12 are centrosymmetric with the geometric center line of the through hole 14 as a symmetry axis, so that when the shift knob 3 is shifted up and down, interference and jamming phenomena can be avoided during the skew shift up and down, and flexibility and driving comfort during the skew shift of the transmission are improved.

Further, the through holes 14 are symmetrical in the sliding direction of the interlocking plate 1, and the interlocking plate 1 is symmetrical as a whole.

In any of the above embodiments, preferably, the shift knob 3 is provided with a second escape portion 30 at an end facing the protrusion 12, and the second escape portion 30 is provided corresponding to the first escape portion 16.

In this embodiment, shift shifting block 3 is provided with the second towards the one end of protruding 12 and dodges portion 30, and the second dodges portion 30 and corresponds the setting of first dodging portion 16, and then provides with first dodging portion 16 when the slant shifts and dodges the space together to interference, jamming's emergence when avoiding the slant to shift up and down with the slant, compliance and driving comfort when having improved the derailleur slant and having shifted.

In any one of the above embodiments, preferably, the shift structure further includes: the shell 4 comprises a guide groove, and two sides of the interlocking plate 1 are connected with the guide groove; the gear shifting shaft 5 is connected with the gear shifting head 3, and the gear shifting shaft 5 can drive the gear shifting head 3 to move so as to drive the interlocking plate 1 and the gear shifting guide block 2 to move; wherein, the two sides of the body 10 are provided with smooth parts 18, and the interlocking plate 1 is connected with the guide groove in a sliding way through the smooth parts 18.

As shown in fig. 1, in this embodiment, the shift structure further includes a housing 4 and a shift shaft 5, smooth portions 18 are provided on two sides of the body 10, specifically, smooth narrow long planes are provided on two sides of the body 10 and connected with the guide grooves of the housing 4 to realize the guided sliding of the interlock plate 1 in the guide grooves, the shift shaft 5 is connected with the shift knob 3, and the shift shaft 5 is rotated or pulled to move the shift knob 3 to drive the interlock plate 1 and the shift guide 2 to move, so as to realize the shift function.

Specifically, interlocking board 1 removes along the axis direction of selector shaft 5, and selector shaft 5 realizes rotary motion or along the translation motion of axis direction through the long arm 6 of shifting that is connected with selector shaft 5, and selector shaft 5 passes through splined connection with the shifting hand piece 3, and shifting hand piece 3 is following and is rotating or removing to promote the fork removal of certain guide block 2 of shifting, and then realize the function of shifting.

In any of the above embodiments, preferably, the shift guide 2 comprises two opposite prongs with a receiving groove disposed therebetween, and the protrusion 12 can be inserted into the receiving groove.

As shown in fig. 2 to 6, in this embodiment, the shift guide block 2 includes two opposite fork heads, a receiving groove is provided between the two fork heads, and the protrusion 12 can extend into the receiving groove of each shift guide block 2 to realize the limiting function of the shift guide block 2, so as to prevent the shift guide block 2 from sliding along the shifting direction when shifting on the same shift guide block 2.

In any of the above embodiments, preferably, the first avoiding portion 16 is located at one end of the protrusion 12 away from the body 10, and the height of the first avoiding portion 16 in the first direction is greater than the height of the fork head in the first direction; wherein, the first direction is a direction from one side close to the body 10 to one side far away from the body 10 of the protrusion 12.

In this embodiment, the height of the first avoiding portion 16 in the first direction is greater than the height of the fork in the first direction, so that a sufficient space is provided for the movement of the fork during shifting, the occurrence of interference and clamping stagnation is avoided, and the flexibility and the driving comfort degree of the transmission during oblique shifting are improved.

In any of the above embodiments, preferably, the width of the through hole 14 in the second direction is greater than the width of the prong in the second direction, and the width of the through hole 14 in the second direction is less than the distance between two surfaces of two adjacent prongs facing away from each other in the second direction; wherein the second direction is the sliding direction of the interlock plate 1 in the guide groove.

In this embodiment, the width of the through hole 14 in the second direction is greater than the width of the fork in the second direction, and the width of the through hole 14 in the second direction is less than the width of two adjacent forks, that is, the width of the through hole 14 only allows one fork to pass through, so as to realize a shift interlock function, that is, the transmission cannot simultaneously engage two gears, that is, the shift knob 3 is not allowed to simultaneously and freely shift two shift guide blocks 2.

In any of the above embodiments, preferably, the distance from the first avoiding portion 16 of one protrusion 12 to the other protrusion 12 along the second direction is smaller than the distance between two surfaces of two adjacent prongs facing away from each other along the second direction.

In this embodiment, the distance from the avoiding portion on one protrusion 12 to the other protrusion 12 along the second direction is smaller than the distance between two surfaces of two forks facing away from each other adjacent to each other along the second direction, that is, the distance between two protrusions 12 after the first avoiding portion 16 is disposed still allows only one fork to pass through, so as to realize the interlocking function.

Further, when the edges of the protrusions 12 are chamfered, the distance between the two protrusions 12 also allows only one prong to pass through, so as to ensure the interlocking function.

As shown in fig. 6, when the gearshift knob 3 is simultaneously tightened to the lower parts of the two-gear fork and the four-gear fork and continues to shift downwards (i.e. when trying to simultaneously engage the three-gear and the five-gear), the two-gear fork and the four-gear fork are simultaneously shifted downwards by the upper sides of the two protrusions 12. The length Cx of the straight edge of the first escape part 16 is designed to ensure that the distance L1 between the protrusion 12 and the guide block is less than the distance L2 between two adjacent guide blocks, which is the distance between the guide blocks and the guide block, and the guide blocks cannot enter the through hole 14 of the interlocking plate 1 at the same time. Therefore, the utility model provides a manual transmission interlocking board 1 except possessing basic interlocking simultaneously and shifting the direction function, still accessible two first 16 designs of dodging, interferes when preventing that the derailleur slant from shifting, the emergence of jamming phenomenon, improves compliance and the driving comfort level that the derailleur slant was shifted.

In any of the above embodiments, preferably, the two protrusions 12 extend into the through hole 14, and the edge of one end of the two protrusions 12 extending into the through hole 14 is provided with a chamfer structure.

In this embodiment, the two protrusions 12 extend into the through hole 14, that is, a part of the two protrusions 12 is located in the through hole 14, so that the shift rod 3 is in contact with a part extending into the through hole 14 during shifting, that is, the contact area between the shift rod 3 and the through hole 14 is reduced, and friction of the through hole 14 on the shift rod 3 is reduced. The edge formed by the protrusions 12 and the through holes 14 is provided with a chamfer structure, specifically, the protrusions 12 are square, the two protrusions 12 and the through holes 14 form four edges, and the chamfer structures on the four edges are C0.5 deburring chamfers.

In any of the above embodiments, preferably, the first avoidance portion 16 and/or the second avoidance portion 30 are chamfered.

In this embodiment, the first avoidance portion 16 and the second avoidance portion 30 are both of a chamfered structure, and have a simple structure, and an avoidance effect can be achieved.

Specifically, as shown in fig. 4 to 6, the shift shoe 2 includes a neutral and first-gear shoe 20, a second and third-gear shoe 22, a fourth and fifth-gear shoe 24, and a sixth-gear shoe 26. The upper fork head is respectively a neutral fork head, a second fork head, a fourth fork head and a sixth fork head, the lower fork head is respectively a first fork head, a third fork head and a fifth fork head, the third fork head is at the position of a gear shifting stroke moved downwards by the second and third guide blocks 22 in fig. 4, and the fourth fork head is at the position of a gear shifting stroke moved upwards by the fourth and fifth guide blocks in fig. 4. Fig. 4 and 5 show the key process of the three-gear oblique shift to the four-gear, in which the shift knob 3 is always tightened to the right against the five-gear fork and the interlock plate 1, and is simultaneously tightened to the upper against the two-gear fork. The second escape portion 30 of the shift knob 3 moves from close contact with the chamfered corner of the fifth fork in the upper right direction (i.e., in the diagonal direction indicated by the arrow in fig. 4) until the shift knob is out of contact. And the interlocking plate 1 and the two-gear fork have the relative movement track of the oblique gear shifting as shown in the figure under the condition of no interference.

As shown in fig. 6, the utility model discloses in the design of the first portion of dodging 16 (the upper left black breach of protruding 12 in fig. 4) of protruding 12 upper left department, this relative motion orbit can be contained to the chamfer region that two straight flanges formed under for Cx and Cy length, can provide the space of dodging for this relative motion orbit, utilizes this design method can avoid protruding 12 and the slant of two fork heads to shift gears and interfere, the jamming. And the first avoidance portion 16 at the lower right of the protrusion 12 in fig. 4 (the black notch at the lower right of the protrusion 12 in fig. 4) and the first avoidance portion 16 at the upper left corner are designed in an oblique symmetry manner, so that an avoidance space can be provided for oblique relative movement under the condition that the four gears are shifted down and the three gears are shifted down. Thus, as shown in fig. 4, the first escape portion 16 of the interlock plate 1 is designed to satisfy the oblique movement of the third gear up-shift fourth gear or the fourth gear down-shift third gear.

Similarly, by adjusting the initial gear position of the gear shifting block 3 in fig. 4, it can be assumed that the design of the two first avoidance portions 16 of the interlocking plate 1 can also satisfy the oblique movement of the lifting gear between the first gear and the second gear and the lifting gear between the fifth gear and the sixth gear.

According to a second aspect of the present invention, there is also provided a transmission (not shown in the figure), comprising: the shift structure according to any one of the embodiments described above.

The utility model discloses the derailleur that the second aspect provided, because of including above-mentioned arbitrary embodiment the structure of shifting, consequently have the whole beneficial effect of structure of shifting.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A shift structure, characterized by comprising:

the interlocking plate comprises a body and two opposite bulges arranged on the body, and a through hole penetrating through the body is arranged between the two bulges;

at least two gear shifting guide blocks connected with the interlocking plate and arranged side by side along the direction from one protrusion to the other protrusion;

the gear shifting block is arranged in the through hole and can shift the gear shifting guide block and the interlocking plate;

at least one of the bulges is provided with a first avoidance part towards one end of the gear shifting block, so that the gear shifting block is avoided when the gear shifting block shifts gears obliquely.

2. The shift structure according to claim 1,

two bellied orientation the one end of shifting the shifting block all is provided with first portion of dodging sets up two bellied first portion of dodging with the geometric centre line of through-hole is the symmetry axis, is central symmetry.

3. The shift structure according to claim 2,

the shifting block faces towards one end of the protrusion, a second avoiding portion is arranged at one end of the protrusion, and the second avoiding portion corresponds to the first avoiding portion.

4. The shift structure according to any one of claims 1 to 3, characterized by further comprising:

the shell comprises a guide groove, and two sides of the interlocking plate are connected with the guide groove;

the gear shifting shaft is connected with the gear shifting head and can drive the gear shifting head to move so as to drive the interlocking plate and the gear shifting guide block to move;

the two sides of the body are provided with smooth parts, and the interlocking plate is connected with the guide groove in a sliding mode through the smooth parts.

5. The shift structure according to claim 4,

the gear shifting guide block comprises two opposite fork heads, an accommodating groove is formed between the two fork heads, and the protrusions can be inserted into the accommodating groove.

6. The shift structure according to claim 5,

the first avoidance part is positioned at one end of the protrusion far away from the body, and the height of the first avoidance part along a first direction is greater than that of the fork head along the first direction;

the first direction is the direction from one side close to the body to one side far away from the body.

7. The shift structure according to claim 5,

the width of the through hole along the second direction is greater than that of the fork head along the second direction, and the width of the through hole along the second direction is less than the distance between two surfaces, which are deviated from each other, of two adjacent fork heads along the second direction;

wherein the second direction is a sliding direction of the interlock plate in the guide groove.

8. The shift structure according to claim 7,

the distance from the first avoidance part on one protrusion to the other protrusion along the second direction is smaller than the distance between two surfaces, which are deviated from each other, of two adjacent prongs along the second direction.

9. The shift structure according to claim 3,

the two bulges extend into the through hole, and the edge of one end of each bulge extending into the through hole is provided with a chamfer structure; and/or

The first avoidance part and/or the second avoidance part are/is of a chamfer structure.

10. A transmission, comprising:

the shift structure according to any one of claims 1 to 9.