CN108099705B - Child safety seat - Google Patents

Abstract

The invention discloses a child safety seat, which comprises a seat body, a carrying handle, a first locking mechanism, a second locking mechanism and an unlocking mechanism, wherein the first locking mechanism comprises a first locking piece; the second locking mechanism comprises a second locking piece, the unlocking mechanism comprises a first unlocking operation piece, a second unlocking operation piece and a traction rope, two ends of the traction rope are respectively connected with the first unlocking operation piece and the second locking piece, the second locking mechanism further comprises a first elastic piece, the first elastic piece is used for enabling the second unlocking operation piece to tend to move towards the unlocking direction, when the first locking mechanism and the second locking mechanism are in a locking state, the traction rope is tightened, when the first unlocking operation piece is operated to unlock the first locking mechanism, the traction rope is loosened, and the second unlocking operation piece is used for unlocking the second locking mechanism under the action of the first elastic piece; when the second unlocking operation piece is operated to unlock the second locking mechanism, the first unlocking operation piece is driven by the traction rope to unlock the first locking mechanism; the invention can realize simultaneous locking and unlocking.

Description

Child safety seat

Technical Field

The invention belongs to the field of children's products, and in particular relates to a child safety seat.

Background technique

Child safety seats are mainly used when children are riding in a car to protect their personal safety. At present, child safety seats have been increasingly used, and various types of child safety seats are sold on the market. Child safety seats generally include a handle and a seat body. In order to improve the comfort of the child safety seat when in use, the handle can be rotated relative to the seat body around the axis to adjust the gear. When adjusting the gear, it is necessary to press the unlocking component to release the lock between the handle and the seat body before adjusting the gear. However, the current unlocking method is unilateral unlocking. When the handle needs to be rotated to adjust the gear, both sides of the handle need to be unlocked at the same time, which is inconvenient to operate and brings great inconvenience to actual use.

For example, Chinese patent CN205523800U discloses a child safety seat, including a seat body, a handle rotatably arranged on the seat body around a rotating shaft, a locking mechanism for locking the relative positions of the seat body and the handle, and an unlocking button for unlocking the locking mechanism so that the handle can rotate relative to the seat body to adjust the gear position, wherein the unlocking button can be slidably arranged on the handle, and the sliding direction of the unlocking button is the same as the extension direction of the central axis of the rotating shaft. Although this patent realizes the unlocking of the handle and is relatively convenient to operate, when the handle needs to be rotated, both sides need to be unlocked separately, and when the unlocking button on one side is released to unlock the other side, the unlocked side may be re-locked, which brings great inconvenience to consumers, especially for consumers who are traveling, and it is generally difficult to free both hands at the same time to operate.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved child safety seat.

In order to solve the above technical problems, a technical solution adopted by the present invention is as follows:

A child safety seat, the seat comprising a seat body, a handle rotatably arranged on the seat body, the seat further comprising a first locking mechanism and a second locking mechanism respectively located on the left and right sides of the seat for locking the seat body and the handle, and an unlocking mechanism for unlocking the first locking mechanism and the second locking mechanism, the first locking mechanism comprising a first locking piece movably arranged on the seat, a first locking piece matching portion cooperating with the first locking piece to achieve locking and arranged on the seat body or the handle, the second locking mechanism comprising a second locking piece movably arranged on the seat, a second locking piece matching portion cooperating with the second locking piece to achieve locking and arranged on the seat body or the handle, the unlocking mechanism The mechanism includes a first unlocking operating member and a second unlocking operating member which are movably arranged on the left and right sides of the seat respectively. The unlocking mechanism also includes a traction rope connected to the first unlocking operating member and the second locking member at both ends respectively, and a first elastic member used to make the second unlocking operating member tend to move in the unlocking direction. When the first locking mechanism and the second locking mechanism are in a locked state, the traction rope is tightened. When the first unlocking operating member is operated to unlock the first locking mechanism, the traction rope is relaxed. Under the action of the first elastic member, the second unlocking operating member unlocks the second locking mechanism. When the second unlocking operating member is operated to unlock the second locking mechanism, the first unlocking operating member unlocks the first locking mechanism driven by the traction rope.

According to some preferred aspects of the present invention, the first unlocking operating member and the second unlocking operating member are respectively slidably disposed on the handle.

According to a further preferred aspect of the present invention, the sliding direction of the first unlocking operating member and the sliding direction of the second unlocking operating member are respectively the front and rear directions of the seat, and the unlocking direction of the first unlocking operating member and the unlocking direction of the second unlocking operating member are independently the front or rear of the seat.

According to some preferred aspects of the present invention, the first locking member and the second locking member are respectively slidably arranged on the carrying handle, and the first locking member mating portion and the second locking member mating portion are respectively arranged on the seat body; or, the first locking member and the second locking member are respectively slidably arranged on the seat body, and the first locking member mating portion and the second locking member mating portion are respectively arranged on the carrying handle.

According to a specific aspect of the present invention, the first locking member and the second locking member are respectively slidably disposed on the handle, and the first locking member mating portion and the second locking member mating portion are respectively disposed on the seat body.

More preferably, the sliding directions of the first locking member and the second locking member are respectively the up and down directions of the seat. When the first locking member and the second locking member slide upward respectively, the first locking member cooperates with the first locking member matching part, and the second locking member cooperates with the second locking member matching part, thereby achieving the locking of the seat body and the handle.

According to a specific and preferred aspect of the present invention, the first locking member and the second locking member are respectively formed with a first inclined surface and a second inclined surface, and the first unlocking operating member and the second unlocking operating member are respectively formed with a third inclined surface that cooperates with the first inclined surface and can slide relatively, and a fourth inclined surface that cooperates with the second inclined surface and can slide relatively.

In some specific embodiments of the present invention, the first elastic member is a tension spring, and the tension spring is arranged between the handle and the second unlocking operating member.

Furthermore, the seat also includes a compression spring, which is arranged between the handle and the first locking member. When the first locking mechanism and the second locking mechanism are respectively in a locked state, the compression spring is in a normal telescopic state, and the tension spring is in a stretched state.

In some specific embodiments of the present invention, the seat further comprises a second elastic member for causing the first locking mechanism to tend to lock.

In some specific embodiments of the present invention, the seat further comprises a guide positioning tube disposed on the handle and extending in a direction substantially the same as that of the handle, and the traction rope is partially or entirely located in the guide positioning tube.

Due to the adoption of the above technical solution, the present invention has the following advantages compared with the prior art:

The child safety seat of the present invention can simultaneously unlock both sides of the handle when one side is unlocked, and can also simultaneously lock both sides of the handle after operations such as adjusting the gear position, which greatly facilitates the use of the consumer, saves the consumer worry and effort during use, and brings the consumer an excellent consumer experience, and the locking and unlocking mechanism has a simple structure and can be placed inside the handle without occupying additional space, making the child seat more beautiful and simple in appearance.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a schematic diagram of the overall structure of a child safety seat of the present invention;

FIG2 is a partial exploded schematic diagram of the handle, the first locking mechanism, the second locking mechanism and the unlocking mechanism of the child safety seat of the present invention;

FIG3 is a schematic structural diagram of one side of the cooperation between the first locking mechanism and the unlocking mechanism of the child safety seat of the present invention;

FIG4 is an enlarged schematic diagram of point A in FIG3 ;

FIG5 is a schematic structural diagram of one side of the cooperation between the second locking mechanism and the unlocking mechanism of the child safety seat of the present invention;

FIG6 is an enlarged schematic diagram of point D in FIG5 ;

Among them, 1. seat body; 2. handle; 21. handle body; 22. first decorative cover; 23. second decorative cover; 31. first locking piece; 311. first inclined surface; 312. first locking tongue; 41. second locking piece; 411. second inclined surface; 412. second locking tongue; 51. first unlocking operating piece; 511. third inclined surface; 52. second unlocking operating piece; 521. fourth inclined surface; 53. traction rope; 54. first elastic piece (tension spring); 6. compression spring; 7. guide positioning tube.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments of the present invention.

In the following embodiments, for the convenience of description, the left, right, up, down, front and back mentioned in the definition of directions are all directions with reference to the child safety seat.

The description of "first" and "second" in this application is only to distinguish two, and there is no order of precedence, nor does it limit whether they are on the left or right side of the seat. In the following, the first corresponds to the left side and the second corresponds to the right side. This is only for the convenience of description. In practice, it can be set according to specific circumstances.

As shown in FIGS. 1-6 , this embodiment provides a child safety seat, which includes a seat body 1 , a handle 2 , a first locking mechanism, a second locking mechanism, an unlocking mechanism, and a guide positioning tube 7 .

The handle 2 is rotatably arranged on the seat body 1, the first locking mechanism and the second locking mechanism are respectively located on the left and right sides of the seat and are used to lock the seat body 1 and the handle 2, and the unlocking mechanism is used to unlock the first locking mechanism and the second locking mechanism.

Specifically, the first locking mechanism includes a first locking piece 31 slidably provided on the handle 2 along the up-down direction of the seat (direction C in the figure), and a first locking piece matching portion (not shown, which can be provided on the seat body 1 according to a conventional method in the prior art, and will not be described in detail here) that cooperates with the first locking piece 31 to achieve locking; the second locking mechanism includes a second locking piece 41 slidably provided on the handle 2 along the up-down direction of the seat, and a second locking piece matching portion (not shown, which can be provided on the seat body 1 according to a conventional method in the prior art, and will not be described in detail here) that cooperates with the second locking piece 41 to achieve locking. When the first locking piece 31 and the second locking piece 41 slide upward respectively, the first locking piece 31 cooperates with the first locking piece matching portion, and the second locking piece 41 cooperates with the second locking piece matching portion, thereby achieving locking of the seat body 1 and the handle 2.

Specifically, the unlocking mechanism includes a first unlocking operating member 51 and a second unlocking operating member 52 which are respectively slidably arranged on the handle 2 and located on the left and right sides of the seat, and a traction rope 53 whose two ends are respectively connected to the first unlocking operating member 51 and the second locking member 41. The unlocking mechanism also includes a first elastic member 54 for causing the second unlocking operating member 52 to tend to move in the unlocking direction, wherein the sliding direction of the first unlocking operating member 51 and the sliding direction of the second unlocking operating member 52 are respectively the front and rear directions of the seat (direction B in the figure). When the first locking mechanism and the second locking mechanism are in a locked state, the traction rope 53 is tightened. When the first unlocking operating member 51 is operated to unlock the first locking mechanism, the traction rope 53 is relaxed. Under the action of the first elastic member 54, the second unlocking operating member 52 unlocks the second locking mechanism; when the second unlocking operating member 52 is operated to unlock the second locking mechanism, the first unlocking operating member 51 unlocks the first locking mechanism driven by the traction rope 53.

In this example, preferably, the unlocking direction of the first unlocking operating member 51 and the unlocking direction of the second unlocking operating member 52 are both in the front of the seat. However, this is not limited to this. The unlocking direction of the first unlocking operating member 51 and the unlocking direction of the second unlocking operating member 52 can be flexibly set according to actual needs. The two can be the same or different, that is, both are in the front or rear of the seat, or one in front and the other in the rear. Of course, it is not limited to being directly facing the front or rear of the seat, and can be the front side or the rear side. No specific limitation is made here. In this example, only from the perspective of convenient operation, the unlocking direction is selected to be the front of the seat.

Specifically, the first locking member 31 is formed with a first inclined surface 311, the second locking member 41 is formed with a second inclined surface 411, the first unlocking operating member 51 and the second unlocking operating member 52 are respectively formed with a third inclined surface 511 that cooperates with the first inclined surface 311 and can slide relatively, and a fourth inclined surface 521 that cooperates with the second inclined surface 411 and can slide relatively, so that each can achieve mutual driving through the cooperation of the inclined surfaces during the sliding process, thereby achieving unlocking and locking.

In this example, preferably, the first elastic member 54 can be a tension spring 54, which is arranged between the handle 2 and the second unlocking operating member 52. Furthermore, the seat further comprises a compression spring 6, which is arranged between the handle 2 and the first locking member 31. When the first locking mechanism and the second locking mechanism are respectively in the locked state, the compression spring 6 is in a normal telescopic state, and the tension spring 54 is in a stretched state. With this arrangement, after the handle 2 is rotated to shift gears, the compression spring 6 can overcome the force exerted by the tension spring 54 on the second unlocking operating member 52, which makes the second unlocking operating member 52 tend to move in the unlocking direction, thereby completing the automatic synchronous locking of the first locking mechanism and the second locking mechanism after unlocking.

In this example, the guide and positioning tube 7 is arranged on the handle 2 and its extension direction is substantially the same as that of the handle 2, and the traction rope 53 is partially or completely located in the guide and positioning tube 7. With this arrangement, the traction rope 53 can be completely hidden inside the handle 2 and can be well protected and oriented by the guide and positioning tube 7, thereby extending the service life and simplifying the structure.

In this example, the handle 2 includes a handle body 21, a first decorative cover 22 and a second decorative cover 23. Preferably, the first decorative cover 22 and the second decorative cover 23 can be movably arranged on the handle body 21, respectively. The interior of the handle body 21 has a cavity, and the above-mentioned unlocking mechanism, the first locking member 31, the second locking member 41, the guide positioning tube 7, etc. can all be located in the cavity. Then, the first decorative cover 22 and the second decorative cover 23 are used to cover the left and right sides respectively, so that it is convenient to operate when parts need to be replaced or performance needs to be debugged.

In other embodiments, the seat may include a second elastic member (not shown) for causing the first locking mechanism to tend to lock. The second elastic member may also be a tension spring. The two ends of the tension spring (second elastic member) may be connected to the first locking member 31 and the handle 2, respectively. The tension spring (second elastic member) may be arranged side by side with the first locking member 31. When the first locking mechanism and the second locking mechanism are in a locked state, the tension spring (second elastic member) is in a normal telescopic state, and the tension spring 54 (first elastic member 54) is in a stretched state. The arrangement of the tension spring (second elastic member) here also allows the first locking mechanism after unlocking to automatically lock under the tension of the tension spring (second elastic member) after the handle 2 completes the rotation adjustment position or gear position, which facilitates the operation. At the same time, the other side can be locked synchronously.

Working method: When the locking mechanisms on both sides are in the locked state, it is now necessary to unlock the handle 2 to perform operations such as rotating and adjusting the gear position. The operation is as follows: for example, unlock the first locking mechanism, and drive the first unlocking operating member 51 to slide toward the front of the seat by external force. At this time, the sliding of the first locking member 31 can be achieved by matching the third inclined surface 511 formed on the first unlocking operating member 51 with the first inclined surface 311 formed on the first locking member 31. In this example, the first locking member 31 overcomes the pressure of the compression spring 6 and slides toward the bottom of the seat. At the same time, the end of the traction rope 53 fixed to the first unlocking operating member 51 will move toward the front of the seat with the first unlocking operating member 51, and then the traction rope 53 will relax. At this time , the second unlocking operating member 52 will slide toward the front of the seat under the action of the tension spring 54, and the fourth inclined surface 521 formed on the second unlocking operating member 52 cooperates with the second inclined surface 411 formed on the second locking member 41 to realize the sliding of the second locking member 41. In this example, the second locking member 41 slides toward the bottom of the seat. When the locking members on both sides (the first locking member 31 and the second locking member 41) slide to a certain extent, the first locking tongue 312 formed on the first locking member 31 will be separated from the matching portion of the first locking member, and the second locking tongue 412 formed on the second locking member 41 will be separated from the matching portion of the second locking member 41, thereby realizing the synchronous unlocking of the first locking mechanism and the second locking mechanism.

For another example, when the second locking mechanism is unlocked, the second unlocking operating member 52 overcomes the resistance (the force applied by the traction rope 53 to the second locking member 41 and then transmitted to the second unlocking operating member 52) through external force and slides toward the front of the seat. At this time, the sliding of the second locking member 41 can be achieved by matching the fourth inclined surface 521 formed on the second unlocking operating member 52 with the second inclined surface 411 formed on the second locking member 41. At this time, the end of the traction rope 53 fixed to the second locking member 41 will move toward the bottom of the seat along with the second locking member 41, and then the traction rope 53 will be tightened. At the same time, the first unlocking operating member 51 will be driven by the traction rope 53 to move toward the front of the seat. The first locking member 31 can slide forward by cooperating with the third inclined surface 511 formed on the first unlocking operating member 51 and the first inclined surface 311 formed on the first locking member 31. In this example, the first locking member 31 overcomes the pressure of the compression spring 6 and slides downward to the bottom of the seat. When the locking members on both sides (the first locking member 31 and the second locking member 41) slide to a certain extent, the first locking tongue 312 formed on the first locking member 31 will be separated from the matching portion of the first locking member, and the second locking tongue 412 formed on the second locking member 41 will be separated from the matching portion of the second locking member, thereby realizing the synchronous unlocking of the first locking mechanism and the second locking mechanism.

Simultaneous locking of both sides is achieved: that is, when the handle 2 is rotated to the required position, the first locking member 31 slides toward the top of the seat under the action of the compression spring 6. At this time, the first unlocking operating member 51 slides toward the rear of the seat under the action of the first inclined surface 311 and the third inclined surface 511. The end of the traction rope 53 connected to the first unlocking operating member 51 moves toward the rear of the seat together with the first unlocking operating member 51, and the traction rope 53 is tightened. At the same time, the second locking member 41 connected to the other end of the traction rope 53 also slides toward the top of the seat under the drive of the traction rope 53. When the locking members on both sides (the first locking member 31 and the second locking member 41) slide to a certain extent, the first locking tongue 312 formed on the first locking member 31 will cooperate with the first locking member matching portion, and the second locking tongue 412 formed on the second locking member 41 will cooperate with the second locking member matching portion, thereby achieving synchronous locking of the first locking mechanism and the second locking mechanism.

In summary, the child safety seat of the present invention can achieve simultaneous unlocking of both sides when one side of the handle 2 is unlocked, and can also achieve simultaneous locking of both sides of the handle 2 after operations such as adjusting the gear position, which greatly facilitates the use of the consumer, saves the consumer worry and effort during use, and brings an excellent consumer experience to the consumer. In addition, the locking and unlocking mechanism has a simple structure and can be placed inside the handle 2 without occupying additional space, making the child seat more beautiful and simple in appearance.

The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The child safety seat comprises a seat body, a carrying handle rotatably arranged on the seat body, a first locking mechanism and a second locking mechanism which are respectively positioned at the left side and the right side of the seat and used for locking the seat body and the carrying handle, and an unlocking mechanism used for unlocking the first locking mechanism and the second locking mechanism, wherein the first locking mechanism comprises a first locking piece movably arranged on the seat, a first locking piece matching part which is matched with the first locking piece to realize locking and is arranged on the seat body or the carrying handle, the second locking mechanism comprises a second locking piece movably arranged on the seat and a second locking piece matching part which is matched with the second locking piece to realize locking and is arranged on the seat body or the carrying handle, and the unlocking mechanism comprises a first unlocking operation piece and a second unlocking operation piece which are respectively movably arranged at the left side and the right side of the seat; when the second unlocking operation piece is operated to unlock the second locking mechanism, the first unlocking operation piece is driven by the traction rope to unlock the first locking mechanism.

2. The child safety seat according to claim 1, wherein the first unlocking operation member and the second unlocking operation member are respectively slidably provided on the carrying handle.

3. The child safety seat according to claim 2, wherein the sliding direction of the first unlocking operation member and the sliding direction of the second unlocking operation member are respectively the front-rear direction of the seat, and the unlocking direction of the first unlocking operation member and the unlocking direction of the second unlocking operation member are independently the front or rear of the seat.

4. The child safety seat according to claim 1, wherein the first and second locking members are slidably disposed on the handle, respectively, and the first and second locking member mating portions are disposed on the seat body, respectively; or the first locking piece and the second locking piece are respectively arranged on the seat body in a sliding way, and the first locking piece matching part and the second locking piece matching part are respectively arranged on the lifting handle.

5. The child safety seat according to claim 4, wherein the sliding directions of the first locking member and the second locking member are up and down directions of the seat, respectively, and the first locking member is engaged with the first locking member engaging portion and the second locking member is engaged with the second locking member engaging portion when the first locking member and the second locking member are slid upward, respectively, thereby achieving locking of the seat body and the handle.

6. The child safety seat according to claim 1 or 5, wherein the first locking member and the second locking member are respectively formed with a first inclined surface and a second inclined surface, and the first unlocking operation member and the second unlocking operation member are respectively formed with a third inclined surface which is matched with the first inclined surface and can slide relatively, and a fourth inclined surface which is matched with the second inclined surface and can slide relatively.

7. The child safety seat according to claim 1, wherein the first resilient member is a tension spring disposed between the handle and the second unlocking operation member.

8. The child safety seat according to claim 7, further comprising a compression spring disposed between the handle and the first locking member, the compression spring being in a normally extended state and the tension spring being in a stretched state when the first and second locking mechanisms are in the locked states, respectively.

9. The child safety seat according to claim 1, further comprising a second resilient member for biasing the first locking mechanism toward locking.

10. The child safety seat according to claim 1, further comprising a guide positioning tube provided on the handle and extending in substantially the same direction as the handle, the traction cable being partially or entirely located within the guide positioning tube.