CN209687027U - Sealing structure, lock and vehicle - Google Patents

Abstract

The utility model relates to technical field of vehicle, more particularly, to a kind of sealing structure, lock and vehicle.The second seal that sealing structure includes the first seal being arranged on shell, is arranged on one end of pin shaft, and it is connected to the flexible connection sleeve of first seal and second seal, wherein, pin shaft can be moved axially in sealing structure the other end of pin shaft is stretched out shell.Lock includes the sealing structure of any of the above-described.Vehicle includes above-mentioned lock.The utility model on shell by being fixedly installed first seal, second seal is fixedly installed on pin shaft, first seal is connected with second seal by flexible connection sleeve flexible, when pin shaft axial movement, flexible connection sleeve is compressed, to guarantee the sealed connection relationship between first seal and second seal, and then it ensure that the leakproofness of shell.The utility model has the advantages of simple structure, practical, at low cost, is suitable for popularization and application.

Description

Sealing structure, lock and vehicle

Technical field

The utility model relates to technical field of vehicle, more particularly, to a kind of sealing structure, lock and vehicle.

Background technique

For existing bicycle lock, either what type of lock is required to not can avoid thus using lock pin The stretching and withdrawal of lock pin act.And stretching and withdrawal to lock pin, it is required to actuator, such as driving motor, or even also have There is circuit board etc. to carry out the electronic control component of control operation, it is therefore necessary to Waterproof, moistureproof and dustproof design is carried out, to avoid electricity Short circuit after son control component dampness touching water.

In existing bicycle lock, the sealing to lock pin is generally that sealing ring is arranged in the exit of lock pin, still, by It in lock pin or moves axially, and then can rub repeatedly to sealing ring, so that sealing ring is worn, and then lose sealing effect Fruit.

Utility model content

In view of this, the embodiment of the present application is designed to provide a kind of sealing structure, lock and vehicle, can by First seal is fixedly installed on shell, second seal is fixedly installed on pin shaft, it will by flexible connection sleeve flexible First seal is connected with second seal, so that abrasion nor affects on the second sealing between the inner ring and pin shaft of first seal Enclose the sealing between pin shaft, and the sealing between second seal and pin shaft, do not interfere with first seal and shell it Between sealing element, when pin shaft axial movement when, flexible connection sleeve compressed, to guarantee first seal and second seal Between sealed connection relationship, and then ensure that the leakproofness of shell.

Present application addresses that cannot be sealed between the pin shaft of axial movement existing in the prior art and shell, reach To the effect for realizing sealing between the pin shaft and shell to axial movement.

In a first aspect, the sealing structure provided by the utility model for lock, the lock includes shell and is contained in The intracorporal pin shaft of shell, the sealing structure include setting first seal on the housing, are arranged in the pin shaft On second seal, and the flexible connection sleeve of the connection first seal and the second seal, wherein described Pin shaft can be moved axially in the sealing structure the other end of the pin shaft is stretched out the shell；It is set on the shell It is equipped with fixed ring, side of the first seal far from the flexible connection sleeve, the pin shaft is arranged in the fixed ring It is slidably arranged in the inner hole of the fixed ring.

With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect, In: the flexible connection sleeve is stretching structure.

The first possible embodiment, the utility model embodiment provide the second of first aspect with reference to first aspect The possible embodiment of kind, in which: the axial cross section of the side wall of the flexible connection sleeve is wavy shaped configuration.

Second of possible embodiment with reference to first aspect, the utility model embodiment provide the third of first aspect The possible embodiment of kind, in which: crest height of the wavy shaped configuration close to one end of the first seal, which is greater than, to be leaned on The crest height of one end of the nearly second seal.

Second of possible embodiment with reference to first aspect, the utility model embodiment provide the 4th of first aspect Kind possible embodiment, in which: the wavy shaped configuration close to one end of the first seal trough to the pin shaft The distance between, greater than the wavy shaped configuration close to one end of the second seal trough between the pin shaft away from From.

With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect, In: the seal groove connecting with the shell is provided on the outer wall of the first seal.

The 5th kind of possible embodiment, the utility model embodiment provide the 6th of first aspect with reference to first aspect The possible embodiment of kind, in which: the seal groove is rectangular channel.

The 5th kind of possible embodiment, the utility model embodiment provide the 7th of first aspect with reference to first aspect The possible embodiment of kind, in which: the seal groove is at least one.

The 5th kind of possible embodiment, the utility model embodiment provide the 8th of first aspect with reference to first aspect The possible embodiment of kind, in which: the axis of the seal groove is identical as the axis of the first seal.

The 5th kind of possible embodiment, the utility model embodiment provide the 9th of first aspect with reference to first aspect The possible embodiment of kind, in which: the opening of the seal groove is provided with chamfering close to the side of the second seal.

The 9th kind of possible embodiment, the utility model embodiment provide the tenth of first aspect with reference to first aspect The possible embodiment of kind, in which: the chamfering is fillet.

With reference to first aspect, the utility model embodiment provides a kind of the tenth possible embodiment of first aspect, Wherein: the axis annular on the inner wall of the first seal around the first seal is provided with sealing strip.

Tenth a kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect 12 kinds of possible embodiments, in which: the sealing strip is a plurality of.

With reference to first aspect, the utility model embodiment provides the 13rd kind of possible embodiment of first aspect, Wherein: the second seal is sealing ring.

With reference to first aspect, the utility model embodiment provides the 14th kind of possible embodiment of first aspect, Wherein: one end of the flexible connection sleeve is arranged on the inner wall of the first seal, or setting is in first sealing Part is close to the side of the second seal.

With reference to first aspect, the utility model embodiment provides the 15th kind of possible embodiment of first aspect, Wherein: the other end of the flexible connection sleeve is arranged on the outer wall of the second seal, or setting is close described second Sealing is close to the side of the first seal.

With reference to first aspect, the utility model embodiment provides the 16th kind of possible embodiment of first aspect, Wherein: the first seal, the second seal and the flexible connection sleeve are integrated setting.

With reference to first aspect, the utility model embodiment provides the 17th kind of possible embodiment of first aspect, Wherein: the material of the first seal, the second seal and the flexible connection sleeve is silica gel.

With reference to first aspect, the utility model embodiment provides the 18th kind of possible embodiment of first aspect, In: it is to be fixedly connected between the fixed ring and the shell.

18th kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect the tenth Nine kinds of possible embodiments, in which: the connection type being fixedly connected is interference fit or is threadedly coupled.

With reference to first aspect, the utility model embodiment provides the 20th kind of possible embodiment of first aspect, In: the fixed ring is hard material.

20th kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect second Ten a kind of possible embodiments, in which: the material of the fixed ring is hard plastic or metal.

With reference to first aspect, the utility model embodiment provides the 22nd kind of possible embodiment of first aspect, Wherein: being provided with anti-drop structure in the fixed ring.

22nd kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect 23 kinds of possible embodiments, in which: the anti-drop structure includes the anticreep protrusion being arranged in fixed ring；

Be provided on the shell it is anti-be disengaged from the groove, the anticreep protrusion setting it is described it is anti-be disengaged from the groove in.

23rd kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect 24 kinds of possible embodiments, in which: the anticreep protrusion is provided with first tiltedly close to one end of the first seal Slope, one end far from the first seal are provided with the second slope；The gradient of the first slope is less than second slope The gradient.

23rd kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect 25 kinds of possible embodiments, in which: the anticreep protrusion is arranged around the axis ring-type of the fixed ring.

23rd kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect 26 kinds of possible embodiments, in which: the anticreep protrusion is arranged along the axis ring-type of the fixed ring.

With reference to first aspect, the utility model embodiment provides the 27th kind of possible embodiment of first aspect, Wherein: the fixed ring is provided with taking-up structure far from the side of the first seal.

27th kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect 28 kinds of possible embodiments, in which: the taking-up structure is the annular projection that the fixed ring outer rim is arranged in.

Second aspect, this application provides a kind of locks comprising lock pin and sealing structure described in any of the above embodiments, institute It states lock pin and is provided with bayonet, in the lock locking, the other end of the pin shaft is inserted into the bayonet.

The third aspect, this application provides a kind of locks comprising sticking department and sealing structure described in any of the above embodiments, The sticking department is provided with lockhole, and in the lock locking, the other end of the pin shaft is inserted into the lockhole.

Fourth aspect, this application provides a kind of vehicles comprising the lock of second aspect or the third aspect.

Sealing structure, lock and vehicle provided by the utility model, by the way that first seal, In are fixedly installed on shell Second seal is fixedly installed on pin shaft, is connected first seal with second seal by flexible connection sleeve flexible, So that abrasion nor affects on the sealing between the second sealing ring and pin shaft between the inner ring and pin shaft of first seal, and second is close Sealing between sealing and pin shaft does not interfere with the sealing element between first seal and shell, when pin shaft axial movement, Flexible connection sleeve is compressed, and to guarantee the sealed connection relationship between first seal and second seal, and then is guaranteed The leakproofness of shell；By the setting of fixed ring, stability of the first seal when pin shaft is mobile ensure that.This is practical new The of simple structure and strong practicability of type, it is at low cost, it is suitable for popularization and application.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the main view of sealing structure provided by the embodiment of the utility model；

Fig. 2 is the A-A cross-sectional view of Fig. 1；

Fig. 3 is the main view for the sealing structure that the utility model another kind embodiment provides；

Fig. 4 is the B-B cross-sectional view of Fig. 3；

Fig. 5 is the structural schematic diagram of the fixed ring of sealing structure provided by the embodiment of the utility model；

Fig. 6 is the structural schematic diagram of the sliding eye on the shell of lock provided by the embodiment of the utility model；

Fig. 7 is the use state of sealing structure provided by the embodiment of the utility model with reference to figure；

Fig. 8 is the structural schematic diagram of lock provided by the embodiment of the utility model；

Fig. 9 is the C-C cross-sectional view of Fig. 5；

Figure 10 is the main view of lock provided by the embodiment of the utility model；

Figure 11 is the D-D cross-sectional view of Figure 10.

In figure: 1: seal groove；2: first seal；3: flexible connection sleeve；4: second seal；5: chamfering；6: sealing Item；7: fixed ring；8: anticreep protrusion；9: taking out structure；10: shell；11: seal section；12: fixed section；13: anti-to be disengaged from the groove；14: pin Axis；15: locking bar；16: sealing structure；17: driving motor；18: pressure spring；19: locked groove.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase To importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

As shown in attached drawing 1- Fig. 4, the utility model provides a kind of sealing structure, for the sealing structure of lock, lock Including shell 10 and it is contained in the intracorporal pin shaft 14 of shell, sealing structure includes the first seal being arranged on shell, setting Second seal on one end of pin shaft 14, and it is connected to the flexible connection sleeve of the first sealing and second seal, In, pin shaft 14 can be moved axially in sealing structure the other end of pin shaft 14 is stretched out shell.

In the present embodiment, first seal 2 is fixed in 14 sliding eye of pin shaft of shell 10, second seal 4 It is fixed on pin shaft 14, and first seal 2 and second seal 4 are attached by being flexibly connected sleeve 3, work as pin shaft 14 when moving axially, and second seal 4 follows pin shaft 14 to be moved together, and since first seal 2 and second is close Connection between sealing 4 is flexibility, and the movement of second seal 4 does not interfere with first seal 2, and then ensure that first is close Sealing between sealing 2 and shell 10 ensure that second seal 4 to the sealing between pin shaft 14, and is flexibly connected sleeve 3 So that being connected and sealed between first seal 2 and second seal 4, and then realize the pin shaft 14 and shell of axial movement Sealing between 10 ensure that the drying property inside shell 10, avoids the rainwater in external environment, dust etc. and enters shell In 10, the overall performance and service life of lock are improved.

In the present embodiment, flexible connection sleeve 3 is stretching structure.

By the setting of stretching structure, flexible connection sleeve 3 is compressed to the greatest extent, and then guarantees that second is close Sealing 4 can follow pin shaft 14 to be moved together, ensure that whole sealing performance.And the set-up mode of stretching structure has very It is a variety of, in the present embodiment, specific set-up mode are as follows: the axial cross section of the side wall of flexible connection sleeve 3 is wavy shaped configuration, It is set as the form of bellows.

It by being set as wavy shaped configuration, can be compressed to the greatest extent using waveform, and then increase flexible connect The scaling of female connector cylinder 3, so that pin shaft 14 not will receive second seal 4 when moving and be flexibly connected sleeve 3 It influences, both ensure that the normal movement of pin shaft 14, and in turn ensured the sealing performance of shell 10.

In the present embodiment, crest height of the wavy shaped configuration close to one end of first seal 2 is greater than close close to second The crest height of one end of sealing 4.

That is, the outer diameter on flexible connection sleeve 3 close to one end of first seal 2 is greater than close to second seal The outer diameter of 4 one end, when flexible connection sleeve 3 stretches, small end is inserted into big end, and then that compresses more steps up It gathers, increases the removable stroke of pin shaft 14.

Meanwhile in the present embodiment, wavy shaped configuration is close to the trough of one end of first seal 2 between pin shaft 14 Distance, greater than wavy shaped configuration close to one end of second seal 4 trough the distance between to pin shaft 14.

That is, the both ends internal diameter on flexible connection sleeve 3 is not identical, the internal diameter close to one end of first seal 2 Greater than close to second seal 4 one end internal diameter so that flexible connection sleeve 3 when being stretched, will not with pin shaft 14 it Between generate friction, increase flexible connection sleeve 3 service life.

In addition, relative volume is larger since first seal 2 is mainly sealed using its outer wall and shell 10, Second seal 4 is mainly sealed using its inner wall and pin shaft 14, and volume is relatively small, will be flexibly connected the both ends of sleeve 3 It is respectively set to big end and small end, is attached respectively with first seal 2 and second seal 4, the strong of connection can be increased Degree guarantees the effect and sealing effect of connection.

It should be pointed out that in the present embodiment, the internal diameter and outer diameter for being flexibly connected the both ends of sleeve 3 are all different, It is also possible to be set as identical internal diameter and outer diameter, as long as its flexible stroke can satisfy the stroke of pin shaft 14, and guarantees flexible Connect the intensity and sealing performance of sleeve 3.

In another embodiment of the utility model, it is provided on the outer wall of first seal 2 and connect with shell 10 Seal groove 1.

That is, it is structure I-shaped and with axially extending bore, shell that first seal 2, which is formed an axial cross section, Seal groove 1 on body 10 can be connected and sealed with shell 10, to guarantee the leakproofness between shell 10 and first seal 2 Can, and then the impurity such as moisture and dust for guaranteeing external environment enter in shell 10.

Specifically, the shape of seal groove 1 is matched with the shape at 10 edge of shell, i.e., when on shell 10 with seal groove 1 When the end of cooperation is rectangle, seal groove 1 is also configured as rectangular channel, when the end cooperated on shell 10 with seal groove 1 is semicircle When shape, seal groove 1 is also configured as semicircle.

That is, the shape of seal groove 1 can be many kinds, if can with the edge of shell 10, mainly with The shape of pin hole side wall on shell 10 is cooperated, to guarantee the sealing performance of shell 10.

In the present embodiment, shell 10 is one layer of structure, at this point, seal groove 1 is one.

The quantity of seal groove 1 is configured according to the concrete shape of the side wall of pin hole in the number of plies or shell 10 of shell 10. It can be as shown in Figure 3 and Figure 4, be set as two seal grooves 1, be also possible to be set as three seal grooves 1, particular number It is configured according to specific use environment.

On the basis of the above embodiments, the axis of seal groove 1 is identical as the axis of first seal 2.Can have in this way After being provided with seal groove 1 in the guarantee first seal 2 of effect, the intensity of first seal 2 is not interfered with, and guarantee pin shaft 14 When moving axially, using the frictional force between first seal 2, the outside of generation of first seal 2 is pushed away Power more balances, and is not in that a side-thrust is big, and the small situation of a side-thrust is avoided due to 2 unbalance stress of first seal Weighing apparatus be caused by damage, ensure that the stress intensity and service life of first seal 2.

On the basis of the above embodiments, in another embodiment of the application, the opening of seal groove 1 is close close to second The side of sealing 4 is provided with chamfering 5.

Such setting can be close convenient for shell 10 to be inserted into when so that first seal 2 and shell 10 being cooperated In sealing groove 1, the convenience of assembly ensure that.And the other side due to being open out is set to right angle in the outside of shell 10, It can effectively avoid rainwater or dust or other impurities from generating at chamfering 5 to collect, and then penetrate into shell 10.

Chamfering 5 is set in the present embodiment, processing method is relatively simple, overall cost is not improved, and ensure that dress The convenience matched.

It should be pointed out that increasing first seal 2 and shell by the way that chamfering 5 is arranged on seal groove 1 in the present embodiment The agility of assembly between body 10, but it is not limited solely to a kind of this set-up mode, can also be and seal groove 1 is arranged For dovetail groove, and the roomy width greater than slot bottom of opening, so that shell 10 is relatively easy to carry out with seal groove 1 with attaching together Match, that is to say, that no matter the shape of any seal groove 1, if the assembly between shell 10 can be easy to implement, and guarantee With the sealing performance between shell 10.

On the basis of the above embodiments, in the present embodiment, chamfering 5 is set as fillet.

It should be pointed out that in the present embodiment, chamfering 5 is fillet, but it is not limited solely to fillet, can also be Other kinds of chamfering 5 such as can also be 45 ° × 45 ° chamferings 5, be also possible to 30 ° × 60 ° of chamferings 5 etc., that is to say, that it is only It wants to realize the convenience assembled by chamfering 5, and guarantees sealing performance.

On the basis of basic embodiment, in the present embodiment, around first seal 2 on the inner wall of first seal 2 Axis annular is provided with sealing strip 6.

By the way that sealing strip 6 is arranged on the inside of first seal 2, preliminary sealing can be carried out to pin shaft 14, and then will The impurity discharge of larger particles can only be that more small steam or dust enter the outside of second seal 4, then pass through outside The sealing of second seal 4 realizes that all isolation ensure that each inside shell 10 outside shell 10 by steam and dust The safety of component.

Specifically, in the present embodiment, sealing strip 6 is set as a plurality of, and a plurality of sealing strip 6 is arranged in parallel, and sealing strip 6 is Annular setting, the axis coaxle of axis and first seal 2.

Such setting can carry out multistage filtering sealing to the outer wall of pin shaft 14, and then ensure that sealing performance and prevent Water effect.

In the present embodiment, the cross section of sealing strip 6 is semicircle, and such shape can neither influence pin shaft 14 Insertion, nor affects on the extraction of pin shaft 14, and the friction between pin shaft 14 is smaller, ensure that the stabilization of pin shaft 14 when moving Property.

It should be pointed out that the cross-sectional shape of sealing strip 6 can be semicircle, but it is not limited solely to semicircle, It can also be other shapes, such as can be with triangle, that is to say, that as long as it can be realized by sealing strip 6 to pin shaft The primary filtration on 14 surfaces, and guarantee the normal movement of pin shaft 14.

Basic embodiment based on the application sets sealing ring for second seal 4 in the present embodiment.Sealing ring Internal diameter be slightly less than the outer diameter of pin shaft 14, can either be real so that sealing ring can be by being tightly fixed on pin shaft 14 Now to the fixation of sealing ring, and it can guarantee the sealing to shell 10.

It should be pointed out that in the present embodiment, the mode that is fixedly connected between sealing ring and pin shaft 14 is tight fit, but It is not limited solely to tight fit this one kind and is fixedly connected with mode, can also be that others are fixedly connected with mode, such as can be with It is using bonding etc., that is to say, that as long as sealing ring can be fixed on pin shaft 14, and guarantee pin shaft 14 and sealing ring Between sealing performance.

Basic embodiment based on the application is flexibly connected one end setting of sleeve in the first sealing in the present embodiment On the inner wall of part 2, or first seal 2 is set close to the side of second seal 4；The other end of flexible connection sleeve 3 is set It sets on the outer wall of second seal 4, or second seal 4 is set close to the side of first seal 2.

Such setting, so that being flexibly connected sleeve 3 when being attached to first seal 2 and second seal 4, no It influences whether the sealing performance between first seal 2 and shell 10, will not influence between second seal 4 and pin shaft 14 Sealing performance, ensure that the sealing waterproof performance of entire sealing structure 16.

Basic embodiment based on the application, in the present embodiment, first seal 2, second seal 4 and flexible connection Sleeve 3 is integrated setting.Such set-up mode, it can be ensured that the leakproofness between first seal 2 and flexible connection sleeve 3 Can, it can also ensure that second seal 4 and the sealing performance being flexibly connected between sleeve 3, and then pass through.

It is noted that in the present embodiment, being between first seal 2, second seal 4 and flexible connection sleeve 3 It is wholely set, but it is not only limited to a kind of this set-up mode, can also be other connection types, such as can also be bonding Deng, that is to say, that as long as first seal 2 can be connected and sealed with flexible connection sleeve 3 for it, by second seal 4 It is connected and sealed with flexible connection sleeve 3.

Basic embodiment based on the application, in the present embodiment, first seal 2, second seal 4 and flexible connection The material of sleeve 3 is silica gel.

Using the characterization of adsorption of silica gel, the waterproof performance of sealing structure 16 can be increased.

It should be pointed out that in the present embodiment, the material that all parts of sealing structure 16 use is silica gel, but it is not It is limited only to silica gel, can also be other materials, such as rubber, that is to say, that as long as it can pass through sealing structure 16 It realizes to the sealing inside shell 10, guarantees waterproof performance.

In another embodiment of the utility model, fixed ring 7 is provided on shell, the setting of fixed ring 7 is close first Side of the sealing far from flexible connection sleeve, pin shaft 14 are slidably arranged in the inner hole of fixed ring 7.

Specifically, being provided with sliding eye on shell, sliding eye includes seal section 11 and fixed section 12；First seal is set It sets in seal section 11, fixed ring 7 is arranged in fixed section 12, by the setting of fixed ring 7, can be avoided and carries out in pin shaft 14 When axial movement, first seal generates shaking along the axial of pin shaft 14, ensure that the mounting stability of first seal.

Specifically, in the present embodiment, being fixedly connected between fixed ring 7 and shell.

More specifically, the connection type being fixedly connected is interference fit or is threadedly coupled.

It should be pointed out that the mode being fixedly connected can be interference fit or be bolted, but it is not limited solely to Both connection types can also be that others are fixedly connected with mode, such as can also be, bolt is fixed, that is to say, that only It wants fixed ring 7 can be fixed in the sliding eye of shell, realizes and axial limiting is carried out to first seal.

In the present embodiment, fixed ring 7 is hard material, specifically, the material of fixed ring 7 is hard plastic or metal.

Fixed ring 7 uses hard material, can effectively prevent pin shaft 14 from generating radial shaking, guarantees the stabilization of pin shaft 14 The stability of property and first seal.

In the present embodiment, anti-drop structure is provided in fixed ring 7.

When between fixed ring 7 and sliding eye to be interference fitted, by the setting of anti-drop structure, fixed ring can be avoided 7 fall off out of sliding eye, ensure that the limit to first seal and pin shaft 14, further ensure the stabilization of first seal The stability of property and pin shaft 14.

Specific, in the present embodiment, anti-drop structure includes the anticreep protrusion 8 being arranged in fixed ring 7；On shell It is provided with and prevents being disengaged from the groove 13,8 setting of anticreep protrusion is disengaged from the groove in 13 anti-.

When installing fixed ring 7, fixed ring 7 is squeezed into sliding eye, when anticreep protrusion 8 enters anti-be disengaged from the groove in 13 When, it cannot be disengaged from the groove in 13 from anti-to back off from or being disengaged from the groove in 13 to difficult from more back off from anti-, in turn by anticreep protrusion 8 It avoids fixed ring 7 to be detached from out of sliding eye, ensure that the mounting stability of fixed ring 7.

Further, in the present embodiment, to guarantee that anticreep protrusion 8 can be relatively easy to enter in sliding eye, Guarantee that anticreep protrusion 8 can be skidded off out of sliding eye, is provided with first tiltedly close to one end of first seal in anticreep protrusion 8 Slope, one end far from first seal are provided with the second slope；And the gradient of first slope is less than the gradient on the second slope.

Fixed ring 7 is being pressed into sliding since the gradient of first slope is less than the gradient on the second slope by such setting It is comparatively laborsaving when in hole, and when fixed ring 7 is taken out out of sliding eye offset it is more laborious.

Specifically, in the present embodiment, first slope and the second slope are straight slope, i.e. the whole gradient phase of first slope Together, the whole gradient on the second slope is identical.

It should be pointed out that first slope and the second slope, which can also be, is set as arc slope, i.e. the gradient of first slope It is variation, the gradient on the second slope is also variation.

In the present embodiment, anticreep protrusion 8 is arranged around the axis ring-type of fixed ring 7.

That is, anticreep protrusion 8 is a ring, it is coaxially disposed with fixed ring 7.

In the present embodiment, anticreep protrusion 8 is arranged along the axis ring-type of fixed ring 7, that is to say, that anticreep protrusion 8 is convex Point or projection cube structure, to be multiple, the axis ring-type around fixed ring 7 is arranged.

Due to the setting of disconnecting prevention structure, fixed ring 7 taken out out of sliding eye it is relatively difficult, in order to enable it can be from It is conveniently taken out in sliding eye, in the present embodiment, is provided in fixed ring 7 far from the side of first seal and takes out structure 9。

Specifically, as shown in fig. 7, in the present embodiment, taking out structure 9 is the annular projection that 7 outer rim of fixed ring is arranged in. It is i.e. by annular projection that fixed ring 7 is exposed outside shell, and then it is easy to use tool, such as straight screwdriver by fixed ring 7 It is taken out out of sliding eye.

Second aspect, this application provides a kind of locks comprising the sealing structure 16 of any of the above-described, such as Fig. 8-Figure 11 It is shown.

Sealing structure 16 employed in the application, can be applied to multiple fields, is such as applied on lock, i.e., will be to can First seal 2 is arranged on the shell of lock as pin shaft 14, second seal 4 is set by the mobile lock pin for carrying out car locking It sets on lock pin, to realize the sealing to lock shell.It is also possible to be arranged on the devices such as door lock, mainly realizes to axis It is sealed to mobile pin shaft 14.

When carrying out specifically used on lock, in horseshoe lock that can be as shown in Figure 5 and Figure 6, needing to open pin shaft 14, When locking bar 15 is rotated, under the drive of driving motor 17, move pin shaft 14 to the inside of shell 10 along its axial direction, At this point, second seal 4 follows pin shaft 14 to move inward, first seal 2 is motionless, and flexible connection sleeve 3 extends；In needs pair When locking bar 15 is locked, driving motor 17 is rotated, and does not apply active force to pin shaft 14, and pin shaft 14 is in the effect of pressure spring 18 Under, it moves axially, is entered in the locked groove 19 on locking bar 15 to the outside of shell 10, at this point, first seal 2 is motionless, Second seal 4 follows pin shaft 14 to be displaced outwardly, and flexible connection sleeve 3 compresses.

Such setting can guarantee the component inside lock, such as driving motor 17, control circuit board component Stability and service life.

The third aspect, this application provides a kind of vehicles comprising above-mentioned lock.

There are many kinds of the adaptable vehicles of above-mentioned lock, such as can be and is arranged on bicycle, especially shared single Che Shang is also possible to be arranged on electric vehicle.

Sealing structure 16, lock and vehicle provided by the utility model, by the way that the first sealing is fixedly installed on the housing 10 Second seal 4 is fixedly installed in part 2 on pin shaft 14, by flexible connection sleeve 3 flexible by first seal 2 and second Sealing element 4 connects so that between the inner ring of first seal 2 and pin shaft 14 abrasion nor affect on the second sealing ring and pin shaft 14 it Between sealing, and the sealing between second seal 4 and pin shaft 14 do not interfere between first seal 2 and shell 10 Sealing element, when pin shaft 14 moves axially, flexible connection sleeve 3 is compressed, to guarantee first seal 2 and second seal Sealed connection relationship between 4, and then ensure that the leakproofness of shell 10.The utility model has the advantages of simple structure, practical, at This is low, is suitable for popularization and application.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

In addition, it will be appreciated by those of skill in the art that although some embodiments in this include institute in other embodiments Including certain features rather than other feature, but the combination of the feature of different embodiment means to be in the utility model Within the scope of and form different embodiments.For example, embodiment claimed is appointed in claims above Meaning one of can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen to this The understanding of the general background technology of utility model, and be not construed as recognizing or implying in any form that information composition has been The prior art known in those skilled in the art.

Claims (32)

1. a kind of sealing structure, for the sealing structure of lock, the lock includes shell and is contained in the intracorporal pin of the shell Axis, which is characterized in that the sealing structure includes setting first seal on the housing, is arranged on the pin shaft Second seal, and the flexible connection sleeve of the connection first seal and the second seal, wherein the pin shaft It can be moved axially in the sealing structure so that the other end of the pin shaft is stretched out the shell；It is provided on the shell Side of the first seal far from the flexible connection sleeve, the pin slide is arranged in fixed ring, the fixed ring It is arranged in the inner hole of the fixed ring.

2. sealing structure according to claim 1, which is characterized in that the flexible connection sleeve is stretching structure.

3. sealing structure according to claim 1, which is characterized in that the axial cross section of the side wall of the flexible connection sleeve For wavy shaped configuration.

4. sealing structure according to claim 3, which is characterized in that the wavy shaped configuration is close to the first seal One end crest height be greater than close to the second seal one end crest height.

5. sealing structure according to claim 3, which is characterized in that the wavy shaped configuration is close to the first seal One end trough the distance between to the pin shaft, greater than the wavy shaped configuration close to one end of the second seal Trough is the distance between to the pin shaft.

6. sealing structure according to claim 1, which is characterized in that be provided on the outer wall of the first seal and institute State the seal groove of shell connection.

7. sealing structure according to claim 6, which is characterized in that the seal groove is rectangular channel.

8. sealing structure according to claim 6, which is characterized in that the seal groove is at least one.

9. sealing structure according to claim 6, which is characterized in that the axis of the seal groove and the first seal Axis it is identical.

10. sealing structure according to claim 6, which is characterized in that the opening of the seal groove is close to described second The side of sealing element is provided with chamfering.

11. sealing structure according to claim 10, which is characterized in that the chamfering is fillet.

12. sealing structure according to claim 1, which is characterized in that around described on the inner wall of the first seal The axis annular of one sealing element is provided with sealing strip.

13. sealing structure according to claim 12, which is characterized in that the sealing strip is a plurality of.

14. sealing structure according to claim 1, which is characterized in that the second seal is sealing ring.

15. sealing structure according to claim 1, which is characterized in that one end of the flexible connection sleeve is arranged in institute It states on the inner wall of first seal, or the first seal is set close to the side of the second seal.

16. sealing structure according to claim 1, which is characterized in that the other end setting of the flexible connection sleeve exists On the outer wall of the second seal, or the second seal is set close to the side of the first seal.

17. sealing structure according to claim 1, which is characterized in that the first seal, the second seal and The flexible connection sleeve is integrated setting.

18. sealing structure according to claim 1, which is characterized in that the first seal, the second seal and The material of the flexible connection sleeve is silica gel.

19. sealing structure according to claim 1, which is characterized in that be fixed between the fixed ring and the shell Connection.

20. sealing structure according to claim 19, which is characterized in that the connection type being fixedly connected is matched for interference It closes or is threadedly coupled.

21. sealing structure according to claim 1, which is characterized in that the fixed ring is hard material.

22. sealing structure according to claim 21, which is characterized in that the material of the fixed ring is hard plastic or gold Belong to.

23. sealing structure according to claim 1, which is characterized in that be provided with anti-drop structure in the fixed ring.

24. sealing structure according to claim 23, which is characterized in that the anti-drop structure includes being arranged in fixed ring On anticreep protrusion；

Be provided on the shell it is anti-be disengaged from the groove, the anticreep protrusion setting it is described it is anti-be disengaged from the groove in.

25. sealing structure according to claim 24, which is characterized in that the anticreep protrusion is close to the first seal One end be provided with first slope, one end of the first seal is provided with the second slope；The slope of the first slope Degree is less than the gradient on second slope.

26. sealing structure according to claim 24, which is characterized in that axis of the anticreep protrusion around the fixed ring Ring-type setting.

27. sealing structure according to claim 24, which is characterized in that axis of the anticreep protrusion along the fixed ring Ring-type arrangement.

28. sealing structure according to claim 1, which is characterized in that the fixed ring is far from the first seal Side is provided with taking-up structure.

29. sealing structure according to claim 28, which is characterized in that the taking-up structure is to be arranged in the fixed ring The annular projection of outer rim.

30. a kind of lock, which is characterized in that including lock pin and the described in any item sealing structures of claim 1-29, the lock Pin is provided with bayonet, and in the lock locking, the other end of the pin shaft is inserted into the bayonet.

31. a kind of lock, which is characterized in that described including sticking department and the described in any item sealing structures of claim 1-29 Sticking department is provided with lockhole, and in the lock locking, the other end of the pin shaft is inserted into the lockhole.

32. a kind of vehicle, which is characterized in that including lock described in claim 30 or 31.