CN218316362U - Safety seat - Google Patents

Abstract

The application discloses safety seat, include the seat support and be used for supporting the supporting legs of seat support, the supporting legs includes: the upper end of the first supporting pipe is connected with the chair seat; the second supporting pipe is sleeved in the first supporting pipe, and a part of the second supporting pipe is telescopic from the lower end of the first supporting pipe; the locking device is matched with the first supporting pipe and the second supporting pipe and used for locking and unlocking the second supporting pipe relative to the first supporting pipe in a telescopic mode. The ratio of the length L1 of the first support tube to the maximum extension L2 of the second support tube is between 0.7 and 1.5. Therefore, the structural strength of the supporting legs can be improved, the bending and deformation of the supporting legs under the supporting state are reduced, the supporting stability is improved, and meanwhile the service life of the supporting legs can be prolonged, so that the service life of the safety seat is longer.

Description

Safety seat

Technical Field

The utility model belongs to the technical field of the carrier and specifically relates to a safety seat is related to.

Background

On the safety seat installation was fixed in car seat etc. and carried the thing, need support the safety seat through the supporting legs of locating the safety seat bottom and fix with the installation of supplementary safety seat to strengthen the fixed firm degree of safety seat installation.

However, in the current market, the length of the supporting feet of the safety seat is often fixed. When the safety seat is installed on the load-bearing objects such as automobile seats with different dimensions and specifications, the supporting legs of the safety seat often have overlong length or too short length, so that the supporting legs cannot play a supporting role.

There are some safety seat of scheme among the prior art, its supporting legs adjustable length, but the structural strength of supporting legs is lower, and support stability is poor, also can bring certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a safety seat, safety seat's supporting legs adjustable length, and intensity is higher, and support stability is good.

According to the safety seat of this application embodiment, including the seat support and be used for supporting the supporting legs of seat support, the supporting legs includes: the upper end of the first supporting pipe is connected with the chair seat; the second supporting pipe is sleeved in the first supporting pipe, and a part of the second supporting pipe is telescopic from the lower end of the first supporting pipe; the locking device is matched with the first supporting tube and the second supporting tube and used for locking and unlocking the extension and contraction of the second supporting tube relative to the first supporting tube; the length of the first supporting tube is L1, the length of the part, extending out of the first supporting tube, of the second supporting tube is L2 when the supporting leg is longest, and the ratio of L1 to L2 is 0.7-1.5.

According to the safety seat of this application embodiment, support on the seat support through setting up the supporting legs to the length of supporting legs utilizes locking device adjustable, thereby the safety seat can adapt to the installation demands of the car seats of different dimensions and specifications etc. and bear the thing. The first supporting tube is sleeved outside the second supporting tube, when the supporting leg is longest, the ratio of the length L1 of the first supporting tube to the length L2 of the part of the second supporting tube extending below the first supporting tube is 0.7-1.5, and the structural strength of the supporting leg can be improved. Therefore, in the supporting state, the probability of bending and deformation of the supporting legs can be reduced, the supporting stability is improved, and meanwhile, the service life of the supporting legs can be prolonged, so that the service life of the safety seat is longer.

According to some embodiments of the present application, the support legs are pivotally connected to the front end of the seat, and the support legs can be stacked under the seat; when the supporting legs are retracted to be shortest, the length of the supporting legs is less than or equal to the dimension L3 of the seat in the front-back direction. Therefore, the supporting legs can be retracted to the storage state after being retracted to the shortest extent, and the rear ends of the supporting legs do not protrude out of the rear end of the seat under the storage state, so that the supporting legs are convenient to store and place. And if external impact force exists during storage, the rear ends of the supporting legs cannot be damaged due to protection of the seat.

In some embodiments, the sum of the length L1 of the first support tube and the extension L2 of the second support tube is less than or equal to the front-to-back dimension L3 of the seat. Therefore, when the chair is stored, if the supporting legs are forgotten to be contracted, the supporting legs can be protected by the chair seat.

According to some embodiments of the application, the locking device comprises: the clamping piece is movably arranged at one end of one of the first supporting pipe and the second supporting pipe, the operating piece is movably arranged at the other end of the first supporting pipe or the second supporting pipe with the clamping piece, the driving piece is movably arranged on the first supporting pipe or the second supporting pipe with the clamping piece, the driving piece is arranged between the clamping piece and the operating piece in a linkage mode, at least two clamping portions are arranged on the other one of the first supporting pipe and the second supporting pipe, the clamping portions are arranged along the telescopic direction of the first supporting pipe relative to the second supporting pipe, the clamping piece is selectively clamped in any clamping portion, and the operating piece drives the driving piece to separate from the clamping of the clamping portions. Therefore, the supporting legs can be adjusted between at least two length gears, the locking device keeps locking through clamping, the structure of the locking device is simple and firm, the adjustment convenience is higher, and therefore the production cost is reduced and the use safety is improved. The clamping piece is arranged at the lower end of the first supporting pipe or the upper end of the second supporting pipe, the number and the positions of the clamping parts are reasonably arranged at the moment, and the locking device can lock the supporting legs at more length gears. The operating part is arranged to facilitate users, the locking device can be switched between locking and unlocking through the operating part, operation is convenient, and the interference of the operating part on the telescopic action of the supporting leg is small.

Furthermore, the clamping part is a clamping hole formed in the first support tube, and any clamping hole is clamped with the clamping piece in a mutually matched manner; the spacing distance of the clamping holes is 5mm-12mm, the size of each clamping hole in the telescopic direction is 4mm-10mm, and the size of each clamping hole in the direction perpendicular to the telescopic direction is 2mm-8mm. Through selecting suitable clamping hole size and spacing distance, the length adjustment of supporting legs meets the requirement, and the clamping stability of the clamping holes and the clamping pieces can be improved.

According to some embodiments of the present application, the engaging portion is an engaging hole formed in the first supporting tube, an inner end of the engaging member is connected to the driving member, and an outer end of the engaging member is provided with a fastening block for inserting into the engaging hole; the upper side surface and the lower side surface of the clamping block are respectively clamping surfaces, the clamping block is further provided with two guide inclined surfaces, the two guide inclined surfaces are respectively connected to one ends, far away from the inner end, of the two clamping surfaces, and the two guide inclined surfaces are gradually close to each other in the direction far away from the inner end. Therefore, the clamping piece moves towards or away from the clamping hole more smoothly, the operation convenience is improved, and the clamping stagnation phenomenon is reduced.

Further, the included angle between at least one guide inclined surface and the connected clamping surface is 100-120 degrees. Therefore, when the clamping block is retracted inwards, if the clamping block is not retracted to the user, the second supporting tube begins to stretch, and at the moment, if the guide inclined plane is abutted to the edge of the clamping hole, the clamping block can gradually exit from the clamping hole through the guide inclined plane, so that the second supporting tube can be conveniently pulled, and the clamping block has a tendency of being automatically adjusted upwards or downwards relative to the clamping hole.

In some embodiments, the locking device comprises: the mounting seat is connected with the second supporting tube, a guide limiting groove is formed in the mounting seat, and the clamping piece is matched in the guide limiting groove; the clamping piece is provided with a sliding column penetrating through the mounting seat, the driving piece is provided with a sliding groove, the sliding column is matched in the sliding groove, and the driving piece drives the sliding column to move along the sliding groove when moving so as to drive the clamping piece to stretch along the guide limiting groove. The switching between locking and unlocking of the locking device is thus provided very simply and reliably. The installation seat is provided with a guide limiting groove for limiting the telescopic direction of the clamping piece, so that the probability of clamping the clamping piece can be reduced.

According to some embodiments of the application, the support foot further comprises: a bottom-touch display device, the bottom-touch display device comprising: the support frame is arranged at the lower end of the second support pipe; the supporting plate is arranged at the bottom of the supporting frame, and at least part of the supporting plate can deform; the elastic piece is arranged between the support frame and the support plate and used for pushing the support plate to bulge downwards; the display piece, the display piece movably set up in on the support frame, the display piece with the backup pad links mutually, just drive when the backup pad warp the display piece activity. Therefore, a user can observe whether the supporting legs touch the bottom or not according to the display piece, and whether the supporting legs are adjusted in place or not is determined.

Further, the display part rotates to be connected on the support frame, be equipped with the holding piece on the display part, touch end display device still includes: the reset elastic piece is connected with the display piece and used for driving the retaining block to stop against the supporting plate. The elastic part resets, when the supporting legs do not touch the bottom, the display part automatically restores to the state that the display part does not touch the bottom, and the display automation degree is improved.

Additional aspects and advantages of the 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.

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 is a schematic view of a safety seat according to an embodiment of the present application;

FIG. 2 is another schematic view of a safety seat according to an embodiment of the present application;

FIG. 3 is an enlarged partial schematic view of the engagement of the first support tube, the second support tube and the locking device of the safety seat according to the embodiment of the present application;

FIG. 4 is another enlarged partial schematic view of the engagement of the first support tube, the second support tube and the locking device of the safety seat according to an embodiment of the present application;

FIG. 5 is an enlarged fragmentary schematic view of the locking mechanism, the bottoming display device and the second support tube of the safety seat according to the embodiment of the application;

FIG. 6 is another enlarged partial schematic view of the locking device, the bottoming display device and the second support tube of the safety seat according to the embodiment of the present application;

FIG. 7 is a schematic view of a drive of a safety seat according to an embodiment of the present application;

FIG. 8 is a schematic view of a mounting seat of a safety seat according to an embodiment of the present application;

FIG. 9 is yet another schematic view of a safety seat according to an embodiment of the present application.

Reference numerals:

the safety seat 100 is provided with a safety seat,

the seat 10 is provided with a seat frame,

the support legs 20 are supported by the frame,

the first support tube 21, the engaging portion 211,

the second support tube 22 is provided with a first support tube,

the locking device 23, the engaging member 231, the driving member 232, the sliding slot 2321, the driven inclined surface 2322, the operating member 233, the driving inclined surface 2331, the latch 234, the clamping surface s1, the guiding inclined surface s2, the mounting seat 235, the guiding limiting groove 2351, the limiting post 2352, the through hole 2353, the sliding post 236, the first resetting member 237, the second resetting member 238,

the bottom-touch display device 24, the support bracket 241, the support plate 242, the elastic member 243, the display member 244, the holding block 2441,

a locking structure 40.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

A safety seat 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 9.

As shown in fig. 1 and 2, a safety seat 100 according to an embodiment of the present application includes a seat 10 and a support foot 20 for supporting the seat 10. The safety seat 100 is usually installed and fixed on a load-bearing object such as an automobile seat, the supporting legs 20 are used to support the seat 10, when a child sits on the seat 10, the supporting legs 20 support the seat 10 more stably, so that the probability of the seat 10 being inclined when the child acts is reduced.

Referring to fig. 2, the supporting foot 20 includes: a first support tube 21, a second support tube 22 and a locking device 23, wherein the upper end of the first support tube 21 is connected with the seat 10. The second support tube 22 is fitted in the first support tube 21, and a part of the second support tube 22 is retractable from the lower end of the first support tube 21. A locking device 23 is engaged with the first support tube 21 and the second support tube 22, and the locking device 23 is used to lock and unlock the extension and contraction of the second support tube 22 with respect to the first support tube 21.

Taking the example of the safety seat 100 being installed on the seat of an automobile, the first supporting tube 21 is sleeved on the second supporting tube 22, the upper end of the first supporting tube 21 is connected to the seat 10, and the lower end of the second supporting tube 22 is used for pushing against the floor of the automobile. The first support tube 21 and the second support tube 22 are telescopically arranged, and the extension length of the second support tube 22 can be adjusted according to the distance between the seat 10 and the vehicle floor, so that the lower end of the support foot 20 can be supported on the vehicle floor, and the vehicle floor provides support force for the seat 10 through the support foot 20. And the locking device 23 can lock the first support tube 21 and the second support tube 22 after the second support tube 22 is adjusted to a proper extension length, so as to prevent the second support tube 22 from retracting into the first support tube 21, thereby improving the support stability and the support effect.

Thus, the safety seat 100 can meet the installation requirements of the vehicle seats and other loads with different dimensions. And the occupied volume can be reduced by shortening the supporting feet 20 during storage or transportation.

Referring to fig. 2, the length of the first support tube 21 is L1, and when the support foot 20 is the longest, the length of the portion of the second support tube 22 extending out of the first support tube 21 is L2, and the ratio of L1 to L2 is between 0.7 and 1.5. The ratio of L1 to L2 can be arbitrarily selected within the above range, for example: 0.7, 0.9, 1, 1.2, 1.3, or 1.5, etc. For another example, when the length L1 of the first support tube 21 is 700mm, the second support tube 22 can extend out of the first support tube 21 by a length of approximately 467mm to 1000 mm.

The length L1 of the first support pipe 21 is not less than 0.7 times the maximum protruding length L2 of the second support pipe 22. The pipe cross-sectional dimension of the first supporting pipe 21 is large, the structural strength and the rigidity are high, the L1 is set to be not less than 0.7 time of the L2, the first supporting pipe 21 is prevented from being too short, the structural strength of the supporting leg 20 can be effectively improved by the first supporting pipe 21 when the supporting leg 20 is used, the bending and deformation phenomena of the supporting leg 20 are reduced, the supporting stability is improved, and the service life of the safety seat 100 is prolonged. And setting L1 to be not less than 0.7 times of L2, the first support tube 21 can provide a larger retraction space for the second support tube 22, so that the second support tube 22 has a larger telescopic adjustable range on the first support tube 21, and the length of the support foot 20 has a larger adjustable range.

The length L1 of the first support tube 21 is not more than 1.5 times the maximum extension length L2 of the second support tube 22, so that it is possible to avoid the first support tube 21 being too long and causing the limit of the length adjustment range of the support foot 20.

In some alternative embodiments, the length L1 of the first support tube 21 is substantially equal to the maximum extension length L2 of the second support tube 22, so as to ensure that a larger telescopic space is provided for the second support tube 22 in the first support tube 21, and the length adjustment range of the support foot 20 is large. And usually on the vehicle the car seat is not high with ground distance, and supporting legs 20 generally need not adjust to the longest, and second stay tube 22 has the part of considerable length to contract in first stay tube 21 under most use condition, thereby supporting legs 20 can keep higher intensity in use, makes the support more stable, reliable.

In some embodiments, as shown in fig. 1, the seat 10 is provided with a locking structure 40 for locking with a car seat, for example, the seat 10 is connected with a rear seat of a vehicle through the locking structure 40 conforming to isofix conditions. Here ISOFIX (meaning child safety seat attachment system) is a new standard for the placement of child seats in cars. The effect is that the installation of the child seat becomes quick and simple, the rigid connection being safer. The safety seat 100 with the ISOFIX can provide better guarantee for the child to sit, can be easily fixed in an ISOFIX interface of an automobile, and improves safety.

According to some embodiments of the present application, as shown in fig. 2, support foot 20 is pivotally connected to the front end of seat 10, and support foot 20 can be stacked under seat 10. When the support leg 20 is shortened to the shortest, the length of the support leg 20 is equal to or less than the dimension L3 of the seat 10 in the front-rear direction.

By the rotational arrangement of the support foot 20, the support foot 20 can be switched between the stowed state and the support state. In the storage state, the lower ends of the supporting legs 20 can be rotated backward, and the supporting legs 20 are entirely horizontally disposed below the seat 10, so that the overall occupied height of the safety seat 100 is small. Moreover, when the chair seat is stored, the supporting feet 20 are horizontally arranged below the chair seat 10 to be protected by the chair seat 10, and the probability that external impact force strikes the slender and unprotected supporting feet 20 is reduced. In a supporting state, the supporting feet 20 are vertically arranged, the upper ends of the supporting feet 20 are connected with the seat 10, and the lower ends of the supporting feet can be pushed against the floor of the vehicle.

By making the length of the supporting leg 20 in the shortest state smaller than the length L3 of the seat 10 in the front-rear direction, the supporting leg 20 can be retracted to the retracted state after the supporting leg 20 is retracted to the shortest state, and the rear end of the supporting leg 20 does not protrude beyond the rear end of the seat 10 in the retracted state, which is convenient for storage and placement. Also, if an external impact force is applied during storage, the rear ends of the support legs 20 are not damaged by the protection of the seat 10.

When the safety seats 100 are transported in batches, the safety seats 100 can be stacked more regularly, the safety of batch transportation is improved, more safety seats 100 can be placed under the fixed volume, and the transportation cost is reduced.

In some embodiments, the sum of the length L1 of the first support tube 21 and the maximum extension L2 of the second support tube 22 is less than or equal to the dimension L3 of the seat 10 in the front-rear direction.

The sum of the length L1 of the first support tube 21 and the maximum extension L2 of the second support tube 22 is here substantially equal to the longest length of the support foot 20. That is, even if the supporting leg 20 extends to the longest, when the supporting leg 20 is stored, the rear end of the supporting leg 20 does not extend to the rear end of the seat 10, or the rear end of the supporting leg 20 does not protrude too much even if it extends to the rear end of the seat 10. Thus, if the support legs 20 are forgotten to be contracted when the seat is stored, the support legs 20 can be protected by the seat 10.

As shown in fig. 3 and 4, according to some embodiments of the present application, the locking device 23 includes: the clamping member 231, the driving member 232 and the operating member 233, wherein the clamping member 231 is movably disposed at one end of one of the first support tube 21 and the second support tube 22, the operating member 233 is movably disposed at the other end of the first support tube 21 or the second support tube 22 having the clamping member 231, the driving member 232 is movably disposed on the first support tube 21 or the second support tube 22 having the clamping member 231, the driving member 232 is interlockingly disposed between the clamping member 231 and the operating member 233, at least two clamping portions 211 are disposed on the other one of the first support tube 21 and the second support tube 22, the clamping portions 211 are arranged along a telescopic direction of the second support tube 22 relative to the first support tube 21, the clamping member 231 is selectively clamped at any one of the clamping portions 211, and the operating member 233 drives the driving member 232 to drive the clamping member 231 to disengage from the clamping portion 211.

Specifically, the lock device 23 of the present embodiment has at least two mounting positions. The first installation position is: the engaging member 231 is movably disposed at the lower end of the first supporting tube 21, the operating member 233 is movably disposed at the upper end of the first supporting tube 21, the driving member 232 is disposed on the first supporting tube 21, one end of the driving member 232 is engaged with the engaging member 231, and the other end of the driving member 232 is engaged with the driving member 232. The second support tube 22 is provided with at least two engaging portions 211, and the engaging portions 211 are arranged along the length direction of the second support tube 22.

The second installation position is as follows: the engaging member 231 is movably disposed at the upper end of the second support tube 22, the operating member 233 is movably disposed at the lower end of the second support tube 22, the driving member 232 is disposed on the second support tube 22, one end of the driving member 232 is engaged with the engaging member 231, and the other end is engaged with the driving member 232. The first support tube 21 is provided with at least two engaging portions 211, and the engaging portions 211 are arranged along the length direction of the first support tube 21.

The engaging members 231 are selectively engaged with any one of the engaging portions 211, and the operating member 233 drives the driving member 232 to drive the engaging members 231 to disengage from any one of the engaging portions 211. When the engaging member 231 is engaged with one of the engaging portions 211, the first support tube 21 and the second support tube 22 cannot be extended or retracted relatively; when the operation member 233 is operated to drive the driving member 232 to drive the engaging member 231 to disengage from the engaging portion 211, the second support tube 22 can be pulled to extend relative to the first support tube 21, so as to adjust the length of the support foot 20 to a desired length. Then, the engaging member 231 is engaged with the corresponding engaging portion 211 at the length, so that the length adjustment operation of the supporting leg 20 can be completed, the adjustment operation is simple and convenient, and great convenience is brought to the user.

Therefore, the supporting foot 20 of the present embodiment can be adjusted between at least two length gears, the locking device 23 has a simple and reliable structure, and is convenient to adjust, so that the production cost is reduced, and the use safety is improved.

Here, the engaging member 231 is provided at the lower end of the first support tube 21 or the upper end of the second support tube 22, so that the engaging member 231 can be located at a position where the first support tube 21 and the second support tube 22 overlap in the entire length adjustment range of the support foot 20. At this time, the number and positions of the engaging portions 211 are set appropriately, and the locking device 23 can make the supporting foot 20 have more length steps.

The operation member 233 is provided to facilitate the user, and the operation of switching the locking device 23 between locking and unlocking is facilitated by the operation member 233, and the interference of the operation member 233 with the expansion and contraction of the leg 20 is small.

Specifically, the operating member 233 is slidably provided on the upper end of the first support pipe 21 or the lower end of the second support pipe 22, the driving member 232 is provided inside the first support pipe 21 and the second support pipe 22, and the engaging member 231 is also inside the first support pipe 21 and the second support pipe 22. Thus, the operation of the sliding arrangement of the operation member 233 is more convenient and labor-saving, the locking device 23 can be protected by the first support tube 21 and the second support tube 22, the possibility of external impact is reduced, and the possibility of damage is reduced.

Specifically, the clamping part 211 corresponds and forms on the perisporium of second stay tube 22 or first stay tube 21, and clamping part 211 is at least two, and the specific quantity that sets up of clamping part 211 can be according to actual user demand and nimble the selection, the utility model discloses do not do the injecture to this, clamping part 211 is arranged along the relative flexible direction of first stay tube 21 and second stay tube 22.

Preferably, the distance between two adjacent engaging portions 211 is equal, the structure is more reasonable, the use is more convenient, and the position adjustment is more linear, but not limited thereto.

In the specific embodiment shown in fig. 3 and 4, the engaging member 231 is movably disposed at one end of the second support tube 22, the operating member 233 is movably disposed at the other end of the second support tube 22, the driving member 232 is movably disposed at the second support tube 22, and the engaging portion 211 is correspondingly disposed at the first support tube 21, so that the structure is more reasonable and compact.

In some embodiments, as shown in fig. 3 and 8, the locking device 23 comprises: the second stay tube 22 is connected to the mount pad 235, is equipped with direction spacing groove 2351 on the mount pad 235, and the cooperation of fastener 231 is in direction spacing groove 2351. The engaging member 231 is provided with a sliding post 236 penetrating through the mounting seat 235, as shown in fig. 4 and 7, the driving member 232 is provided with a sliding slot 2321, the sliding post 236 is fitted in the sliding slot 2321, and when the driving member 232 moves, the sliding slot 2321 is driven to move along the sliding slot 2321, so as to drive the engaging member 231 to extend and retract along the guiding limiting slot 2351.

That is, the mounting seat 235 defines the position of the engaging member 231, and the mounting seat 235 is disposed on the second support tube 22, so that the engaging member 231 can telescope relative to the second support tube 22. In other embodiments, the mounting seat 235 can be disposed on the first supporting tube 21 according to the situation that the engaging member 231 is movably disposed on the first supporting tube 21, which is not described in detail herein.

Specifically, the mounting seat 235 is located at the upper end of the second support tube 22, and the engaging member 231 is correspondingly disposed at the upper end of the second support tube 22. Here, when the mounting seat 235 is located at the upper end of the second support pipe 22, the mounting seat 235 may be located inside the second support pipe 22 or outside the second support pipe 22. Preferably, the mounting seat 235 is located in the second support tube 22, and the engaging member 231 is located mostly in the second support tube 22, so as to reduce the occupied space and make the structure more compact.

Since the slide post 236 is provided in the engaging member 231 and the slide groove 2321 is provided in the driving member 232, when the operating member 233 moves, the driving member 232 is extended and contracted, and the driving member 232 presses the slide post 236 via the inner wall of the slide groove 2321, so that the slide post 236 slides along the slide groove 2321. Meanwhile, the engaging member 231 is constrained by the guiding and limiting groove 2351 of the mounting seat 235, so that the engaging member 231 extends and retracts along the guiding and limiting groove 2351. The switching between locking and unlocking of the locking device 23 is thus provided very simply and reliably. The mounting seat 235 is provided with a guide limiting groove 2351 for limiting the extending direction of the engaging member 231, so as to reduce the probability of the engaging member 231 being locked.

Here, the longitudinal direction of the guide stopper 2351 forms an angle with the longitudinal direction of the support foot 20, and the extending/retracting direction of the engaging member 231 forms an angle with the longitudinal direction of the second support tube 22, so that the engaging member 231 prevents the first support tube 21 from extending/retracting/sliding with respect to the second support tube 22 when engaged.

Specifically, in the embodiment, the driving member 232 is movable along the length direction of the second support tube 22, and the driving member 232 is at least partially located in the second support tube 22, so that the interior of the second support tube 22 can provide a space for the driving member 232 to move.

The sliding driving member 232 drives the engaging member 231 to selectively engage with or disengage from any of the engaging portions 211. More specifically, the extending and retracting direction of the engaging member 231 is perpendicular to the extending and retracting direction of the second support tube 22, i.e., the length direction of the guide retaining groove 2351 is perpendicular to the length direction of the second support tube 22.

Specifically, the mounting seat 235 is provided with a guide limiting groove 2351 arranged along the sliding direction of the engaging member 231, the guide limiting groove 2351 is arranged inside the mounting seat 235, and at least one end of the guide limiting groove 2351 is open, so that the engaging member 231 can extend out from the open end and clamp the first support tube 21. In the example of fig. 3, two ends of the guide limiting groove 2351 are opened, and two engaging members 231 are provided, and the two engaging members 231 may extend from the two ends of the guide limiting groove 2351 to engage with the first support tube 21.

More specifically, a through hole 2353 is formed on the inner wall of the guide limiting groove 2351 of the mounting seat 235, the sliding column 236 of the engaging member 231 extends from the through hole 2353, and then the extending portion of the sliding column 236 is engaged with the sliding slot 2321 of the driving member 232. Specifically, the length direction of the through hole 2353 is parallel to the length direction of the guide slot 2351, and the height dimension of the through hole 2353 is substantially equal to the height dimension of the sliding column 236, so as to further restrict the sliding direction of the engaging member 231 in the guide slot 2351. Optionally, the spool 236 is cylindrical and the height of the perforations 2353 is substantially equal to the diameter of the spool 236.

In addition, the driving member 232 is provided with a sliding slot 2321, and the sliding slot 2321 is disposed in an inclined manner along the sliding direction of the driving member 232. The engaging member 231 is provided with a sliding column 236, and the sliding column 236 passes through the through hole 2353 and the sliding slot 2321. The driving member 232 is sleeved outside the mounting seat 235, and two ends of the mounting seat 235 extend out of the driving member 232 and then are connected with the second supporting pipe 22.

In the embodiment shown in fig. 4, 7, and 8, the front and rear sides of the engaging member 231 are provided with the sliding posts 236, the front and rear sides of the mounting seat 235 are provided with the through holes 2353, and the driving member 232 is provided with the sliding slots 2321 at the front and rear sides of the mounting seat 235, so that the front and rear sliding posts 236 of the engaging member 231 respectively penetrate through the front and rear through holes 2353 and then are engaged with the front and rear sliding slots 2321, thereby improving the force balance of the engaging member 231. The guiding limiting groove 2351 of the mounting seat 235 penetrates through the mounting seat 235 in the left-right direction, the two engaging members 231 are located in the guiding limiting groove 2351, through holes 2353 are respectively formed in the front side and the rear side of the mounting seat 235 corresponding to the two engaging members 231, and sliding grooves 2321 are respectively formed in the driving member 232 corresponding to the two engaging members 231. The sliding grooves 2321 distributed on the left and right of the driving member 232 are symmetrical to each other, and the left and right sliding grooves 2321 form a 'splay'. When the two engaging members 231 are far away from each other, the two engaging members 231 are engaged with the corresponding engaging portions 211, and when the two engaging members 231 are close to each other, the two engaging members 231 are disengaged from the corresponding engaging portions 211, so that the connection and positioning structure between the first support tube 21 and the second support tube 22 is more reliable, and the connection and driving structure between the driving member 232 and the engaging members 231 is more reliable.

In the embodiment of the present application, as shown in fig. 3 and 4, the locking device 23 further includes: the first reset element 237, the first reset element 237 is connected to the driving element 232, for resetting the driving element 232 after being released, and the driving element 232 moves towards the direction of extending the engaging element 231 after being reset.

Preferably, the first reset element 237 abuts between the mounting seat 235 and the driving element 232, and the first reset element 237 drives the driving element 232 to drive the engaging element 231 to move toward the engaging portion 211. The engaging member 231 can be automatically reset and engaged with the corresponding engaging portion 211, so that the structure is more reasonable, and the operation is more convenient and labor-saving.

In the embodiment of the present application, the first reset element 237 drives the driving element 232 to move toward the direction close to the second supporting tube 22, so as to push the sliding column 236 to drive the engaging element 231 to move toward the direction close to the corresponding engaging portion 211, so that the engaging element 231 can be automatically reset to be engaged with the corresponding engaging portion 211, and the structure is simpler and more reasonable.

As shown in fig. 3, in the present embodiment, the first returning element 237 is preferably a spring, which is in compressed abutment between the first supporting tube 21 and the driving element 232, so as to normally urge the driving element 232 to move toward the second supporting tube 22. The driving piece 232 is further provided with a limiting groove, the mounting seat 235 is provided with a limiting column 2352 matched with the limiting groove, the limiting groove is arranged along the sliding direction of the driving piece 232, and the limiting column 2352 extends into the limiting groove, so that the driving piece 232 is prevented from excessively sliding, and the structure is safer and more reliable.

Specifically, as shown in fig. 6, the locking device 23 further includes: and a second reset member 238, wherein the second reset member 238 is connected to the operating member 233, and the second reset member 238 normally resets the operating member 233, so that the driving member 232 moves toward the direction of engaging the driving engaging member 231. Thus, the operating piece 233 can reset automatically, and is simple and reasonable in structure and convenient and labor-saving to operate. In the present embodiment, the second restoring member 238 is preferably a spring.

As shown in fig. 4, according to some embodiments of the present application, the engaging portion 211 is an engaging hole formed on the first supporting tube 21, an inner end of the engaging member 231 is connected to the driving member 232, and an outer end of the engaging member 231 is provided with a latch 234 for being inserted into the engaging hole. The locking is more firm by the hole clamping.

Specifically, as shown in fig. 3 and 4, the upper and lower side surfaces of the latch 234 are respectively a latching surface s1, and the latch 234 is further provided with two guiding inclined surfaces s2, the two guiding inclined surfaces s2 are respectively connected to one ends of the two latching surfaces s1 far from the inner end, and the two guiding inclined surfaces s2 gradually approach in the direction far from the inner end.

Therefore, by providing the locking surface s1, after the fixture block 234 is inserted into the engaging hole, the locking surfaces s1 on the upper and lower sides thereof can stop the upper and lower walls of the engaging hole, so that the engaging piece 211 can be locked firmly when engaged with the engaging portion 211, thereby reducing the possibility that the fixture block 234 slips out of the engaging hole under an unoperated development part.

By providing the guiding inclined plane s2, the guiding inclined plane s2 can guide the engaging member 231 in the connecting process with the engaging hole, thereby reducing the occurrence of the clamping stagnation phenomenon in the engaging process. For example, when the fixture block 234 is inserted into the engagement hole, if the fixture block 234 is not aligned with the engagement hole, but the guiding inclined surface s2 abuts against the edge of the engagement hole, the guiding inclined surface s2 can be used to slowly insert the fixture block 234 into the engagement hole, so that the movement of the engagement member 231 toward or away from the engagement hole is smoother, the operation convenience is improved, and the occurrence of the clamping stagnation is reduced.

Preferably, the angle between at least one guiding slope s2 and the associated retaining surface s1 is 100 to 120 degrees, for example, the angle β between the guiding slope s2 and the associated retaining surface s1 is 100 degrees, 105 degrees, 110 degrees, 113 degrees, 117 degrees or 120 degrees. The angle β is set to be relatively slow, when the fixture block 234 is retracted inward, if the fixture block 234 is not retracted to the user, the second support tube 22 starts to be extended and retracted, and at this time, if the guiding inclined surface s2 is already abutted to the edge of the engagement hole, the fixture block 234 can gradually exit from the engagement hole through the guiding inclined surface s2, so that the second support tube 22 can be pulled conveniently, and the fixture block 234 has a tendency of being automatically adjusted upward or downward relative to the engagement hole.

Further, the engaging portion 211 is an engaging hole formed in the first support tube 21, and any one of the engaging holes is engaged with the engaging piece 231 in a mutually engaged manner.

The spacing distance a1 of the clamping holes is 5mm-12mm, for example, the spacing distance a1 of the clamping holes may be 5mm, 10mm, 12mm, or the like, and the specific value is set according to the use requirement.

The size a2 of the single clamping hole in the telescopic direction is 4mm-10mm, for example, the size a2 of the single clamping hole in the telescopic direction is 4mm, 6mm or 10mm, and the specific value is set according to the use requirement.

Wherein, the size a3 of the single clamping hole in the direction vertical to the stretching direction is 2mm-8mm. For example, the dimension a3 of the single engaging hole in the direction perpendicular to the expansion/contraction direction may be 2mm, 4mm, 6mm, 8mm, or the like.

In this way, by selecting a suitable size of the engaging hole and a suitable distance between the engaging holes, the length of the supporting leg 20 can be adjusted to meet the requirement (minimum adjustable amount), and the size of the engaging hole can meet the requirement, so that the engaging stability of the engaging hole and the engaging member 231 can be improved.

As shown in fig. 5 and 6, according to some embodiments of the present application, the support foot 20 further comprises: a bottom-up display device 24, the bottom-up display device 24 comprising: a support bracket 241, a support plate 242, an elastic member 243 and a display member 244.

The support frame 241 is provided at the lower end of the second support pipe 22, the support plate 242 is provided at the bottom of the support frame 241, and at least a portion of the support plate 242 is deformable. The elastic member 243 is disposed between the supporting frame 241 and the supporting plate 242, and the elastic member 243 is used for pushing the supporting plate 242 to bulge downwards. The display member 244 is movably disposed on the supporting frame 241, the display member 244 is linked with the supporting plate 242, and the supporting plate 242 drives the display member 244 to move when deforming.

Specifically, the support frame 241 is disposed at one end (i.e., the lower end in the expanded state) of the second support tube 22 away from the first support tube 21, and the support frame 241 is disposed outside the first support tube 21, so that the structural layout is more reasonable. The operating element 233 is slidably disposed on the supporting frame 241, and the sliding direction of the operating element 233 is perpendicular to or has an angle with the sliding direction of the driving element 232, at least a portion of the operating element 233 is exposed outside the supporting frame 241, a driving inclined surface 2331 is formed at one end of the operating element 233 close to the driving element 232, a driven inclined surface 2322 is formed at one end of the driving element 232 close to the operating element 233, the driving inclined surface 2331 inclines in a direction from the second supporting tube 22 to the first supporting tube 21 toward a direction close to a center line of the first supporting tube 21, the driven inclined surface 2322 inclines in a direction from the first supporting tube 21 to the second supporting tube 22 toward a direction away from the center line of the first supporting tube 21, the operating element 233 pushes the driving element 232, and the driving element 232 drives the engaging element 231 to disengage from the engaging portion 211.

Further, a support plate 242 is provided below the support frame 241, and the support plate 242 is used to be pushed against the vehicle floor. As shown in fig. 9, the surface of the support plate 242 facing the vehicle floor is roughened or provided with a plurality of annular grooves to increase friction and ensure stable support of the support foot 20 on the vehicle floor.

Specifically, the supporting frame 241 and the supporting plate 242 are assembled with an elastic member 243, the supporting stability can be further improved by elastically buffering the vibration transmitted by the supporting plate 242 through the elastic member 243, and the elastic member 243 is arranged to enable the supporting plate 242 to move towards the supporting frame 241, and during the movement of the supporting plate 242 towards the supporting frame 241, the display member 244 is linked with the supporting plate 242 to display whether the supporting foot 20 is supported in place through the display member 244.

Specifically, a pushing block may be disposed on the upper side of the supporting leg 20, the display member 244 is rotatably connected to the supporting frame 241, the display member 244 is provided with a retaining block 2441, the pushing block can push the retaining block 2441 to drive the display member 244 to switch between the first position and the second position, the supporting frame 241 is further provided with a supporting cover above which a display hole opposite to the display member 244 is disposed, the display member 244 is divided into a first display portion and a second display portion in the rotating direction, and the first display portion and the second display portion have different colors, so that when the supporting leg 20 is supported in place, the first display portion is visible in the display hole area, and when the supporting leg 20 is not supported in place, the second display portion is visible in the display hole area, so that a user can observe whether the supporting leg 20 is supported in place, and convenience in assembling and adjusting the safety seat 100 is improved.

Further, the bottoming display device 24 further includes: a return elastic member 243 connected to the display member 244, the return elastic member 243 for driving the holding block 2441 to stop against the supporting plate 242, and the return elastic member 243 may be a torsion spring. The elastic member 243 is reset, so that when the supporting leg 20 does not touch the bottom, the display member 244 automatically returns to the state of displaying no touch, thereby improving the display automation degree.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A safety seat comprising a seat (10) and supporting feet (20) for supporting the seat (10), characterized in that the supporting feet (20) comprise:

the upper end of the first supporting pipe (21) is connected with the seat (10);

a second support tube (22), wherein the second support tube (22) is sleeved in the first support tube (21), and a part of the second support tube (22) is telescopic from the lower end of the first support tube (21);

a locking device (23), wherein the locking device (23) is matched with the first supporting tube (21) and the second supporting tube (22), and the locking device (23) is used for locking and unlocking the extension and contraction of the second supporting tube (22) relative to the first supporting tube (21);

the length of the first supporting tube (21) is L1, the length of the part, extending out of the first supporting tube (21), of the second supporting tube (22) is L2 when the supporting leg (20) is longest, and the ratio of L1 to L2 is 0.7-1.5.

2. The safety seat according to claim 1, characterized in that the supporting feet (20) are rotatably connected to the front end of the seat (10), and the supporting feet (20) can be stacked under the seat (10);

when the supporting legs (20) are retracted to the shortest, the length of the supporting legs (20) is smaller than or equal to the front-back size L3 of the seat (10).

3. The safety seat according to claim 2, characterized in that the sum of the length L1 of the first support tube (21) and the maximum extension L2 of the second support tube (22) is less than or equal to the front-rear dimension L3 of the seat (10).

4. A safety seat according to claim 1, characterized in that the locking device (23) comprises:

a clamping piece (231), a driving piece (232) and an operating piece (233), wherein the clamping piece (231) is movably arranged at one end of one of the first support tube and the second support tube, the operating piece (233) is movably arranged at the other end of the first support tube or the second support tube with the clamping piece (231), the driving piece (232) is movably arranged on the first support tube or the second support tube with the clamping piece (231), the driving piece (232) is arranged between the clamping piece (231) and the operating piece (233) in a linkage manner,

the other one of the first supporting tube and the second supporting tube is provided with at least two clamping parts (211), the clamping parts (211) are arranged along the telescopic direction of the second supporting tube relative to the first supporting tube, the clamping piece (231) is selectively clamped on any one of the clamping parts (211), and the operating piece (233) drives the driving piece (232) to drive the clamping piece (231) to be separated from the clamping with the clamping parts (211).

5. The safety seat according to claim 4, wherein the engaging portion (211) is an engaging hole formed in the first supporting tube, and any one of the engaging holes is engaged with the engaging member (231) in a fitting manner;

the spacing distance of the clamping holes is 5mm-12mm, the size of each clamping hole in the telescopic direction is 4mm-10mm, and the size of each clamping hole in the direction perpendicular to the telescopic direction is 2mm-8mm.

6. The safety seat according to claim 4, wherein the engaging portion (211) is an engaging hole formed on the first supporting tube, an inner end of the engaging member (231) is connected to the driving member (232), and an outer end of the engaging member (231) is provided with a locking block (234) for being inserted into the engaging hole;

the upper side surface and the lower side surface of the clamping block (234) are respectively provided with a clamping surface (s 1), the clamping block (234) is further provided with two guiding inclined surfaces (s 2), the two guiding inclined surfaces (s 2) are respectively connected to one ends, far away from the inner ends, of the two clamping surfaces (s 1), and the two guiding inclined surfaces (s 2) gradually approach in the direction far away from the inner ends.

7. A safety seat according to claim 6, wherein the angle between at least one of said guide ramps (s 2) and the associated detent surface (s 1) is 100-120 degrees.

8. A safety seat according to claim 4, wherein the locking device (23) comprises: the mounting seat (235) is connected with the second supporting pipe, a guide limiting groove (2351) is formed in the mounting seat (235), and the clamping piece (231) is matched in the guide limiting groove (2351);

be equipped with on fastener (231) and pass traveller (236) of mount pad (235), be equipped with spout (2321) on driving piece (232), traveller (236) cooperation is in spout (2321), driving piece (232) are when moving drive traveller (236) are followed spout (2321) activity drives fastener (231) are followed direction spacing groove (2351) are flexible.

9. The safety seat of claim 1, wherein the support foot further comprises: a bottom-touch display device, the bottom-touch display device comprising:

the supporting frame (2411), the supporting frame (2411) is arranged at the lower end of the second supporting pipe;

a support plate (242), wherein the support plate (242) is arranged at the bottom of the support frame (2411), and at least part of the support plate (242) can be deformed;

the elastic piece is arranged between the supporting frame (2411) and the supporting plate (242) and is used for pushing the supporting plate (242) to bulge downwards;

the display piece (244), the display piece (244) movably sets up on the support frame (2411), the display piece (244) with backup pad (242) links mutually, and the backup pad (242) are driven when warping the display piece (244) activity.

10. The safety seat according to claim 9, wherein the display member (244) is rotatably connected to the supporting frame (2411), the display member (244) is provided with a retaining block (2441), and the bottoming display device further comprises: a return spring connected to the display member (244) for driving the holding block (2441) against the support plate (242).

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