CN214284188U

CN214284188U - Lockable rotary joint

Info

Publication number: CN214284188U
Application number: CN202022125933.7U
Authority: CN
Inventors: 邱利兵; 拉尔夫·霍利斯; 约翰尼斯·祖斯特维森; 彼得·科勒
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-24
Publication date: 2021-09-28
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to a rotary joint of lockable for the rotation of first member and second member is connected, including first rotation piece, with first rotation piece through the second rotation piece that the pivot is rotationally connected mutually, joint locking piece, first elastic component and secondary locking mechanical system, wherein, joint locking piece has first operating position and second operating position, secondary locking mechanical system has locking state and unblock state, secondary locking mechanical system is under the locking state, joint locking piece is locked in first operating position, secondary locking mechanical system is under the unblock state, joint locking piece along the axial sliding ground of pivot connect in first rotation piece and/or the second rotates the piece. The utility model discloses a rotary joint of lockable, simple structure, stability improve the unblock degree of difficulty, when being applied to collapsible children's articles for use with it, the children's articles for use that can avoid the maloperation to arouse are folding, stability and security when improving children's articles for use.

Description

Lockable rotary joint

Technical Field

The utility model particularly relates to a rotary joint of lockable.

Background

Common infant's articles for use on the market at present, the rotation joint between the member including shallow, crib, guardrail etc. all can lock, makes children's articles for use have expansion or fold condition, and the unblock operation is also fairly simple simultaneously, only need press just can the unblock once, nevertheless because the unblock operation is too simple, in the use, can be because of reasons such as maloperation, unexpected collision, make the joint unblock of rotating, lead to children's articles for use to fold, consequently has the potential safety hazard.

Disclosure of Invention

The utility model aims at providing a rotary joint of lockable.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a lockable swivel joint for the swivel connection of a first rod to a second rod, comprising

The first rotating piece is fixedly arranged at the end part of the first rod piece, and first inner ring teeth are arranged on the first rotating piece;

the second rotating piece is fixedly arranged at the end part of the second rod piece, second inner ring teeth are arranged on the second rotating piece, and the first rotating piece and the second rotating piece are rotatably connected through a pivot shaft;

the outer circumference of the joint locking piece is provided with outer teeth, the joint locking piece is provided with two working positions, the first working position is a locking working position, the outer teeth of the joint locking piece are simultaneously positioned in a tooth groove of a first inner ring tooth and a tooth groove of a second inner ring tooth, the second working position is a rotating working position, the outer teeth of the joint locking piece are only positioned in the tooth groove of the second inner ring tooth, the outer teeth of the joint locking piece are separated from the tooth groove of the first inner ring tooth, and when the first working position is converted to the second working position, the joint locking piece slides towards the second rotating piece along the axial direction of the pivot shaft;

a first elastic member located between the second rotating member and the knuckle locking member, having a tendency to make the knuckle locking member away from the second rotating member;

the rotary joint further comprises a secondary locking mechanism, the secondary locking mechanism is in a locking state, the joint locking piece is locked at a first working position, and in an unlocking state, the joint locking piece is connected to the first rotating piece and/or the second rotating piece in a sliding mode along the axial direction of the pivot shaft.

The utility model discloses can be used to any two member that need lockable ground to connect, the preferred children article for use that is used for, more preferred push rod that is used for children's shallow.

The utility model discloses in, the preferred pressure spring that is of first elastic component, when locking operating position, under the effect of the elastic force of pressure spring, joint locking piece lies in first rotation piece and second rotation piece simultaneously, and when first operating position changed to second operating position, the elastic force that joint locking piece overcome the pressure spring slided towards the second rotation piece.

Specifically, the secondary locking mechanism comprises

A button pressed on a side of the knuckle lock adjacent to the first rotating member;

a button locking member having a blocking portion thereon, said button locking member having two operative positions, one operative position being a button locking operative position, said blocking portion blocking said button to prohibit said button from sliding toward said knuckle locking member, the other operative position being a button unlocking operative position, said blocking portion being spaced from said button to permit said button to slide toward said knuckle locking member, said button sliding toward said knuckle locking member in an axial direction of said pivot when said button locking operative position is shifted to said button unlocking operative position.

Further, the button locking piece is located between the button and the first rotating piece and is rotationally connected with the first rotating piece, the rotating axis line of the button locking piece is coaxial with the pivot, and when the button locking working position is converted to the button unlocking working position, the button locking piece drives the blocking part to rotate.

Furthermore, the button is provided with an axially extending button push rod which penetrates through the button locking piece and the first rotating piece and then abuts against and presses the joint locking piece. When the button slides in the axial direction of the pivot shaft toward the knuckle lock member, the button push rod pushes the knuckle lock member to slide toward the second rotating member against the elastic force of the first elastic member.

Still further, the button push rod is provided with a locking groove, when the button is locked at the working position, the blocking part is inserted into the locking groove, and when the button is unlocked at the working position, the blocking part is separated from the locking groove. The rotary button locking piece drives the blocking part on the rotary button locking piece to be inserted into or separated from the locking groove.

Furthermore, a second elastic piece is connected between the button unlocking piece and the first rotating piece, and the second elastic piece is used for enabling the button locking piece to tend to switch from the button unlocking working position to the button locking working position.

The utility model discloses in, the preferred extension spring that is of second elastic component, the one end of extension spring is fixed on first rotation piece, and the other end of extension spring is fixed on button unlocking piece.

Still further, the first rotating member has a first cavity and a second cavity, the first cavity and the second cavity are separated by a partition plate integrally provided with the first rotating member, the first inner ring gear is located on an inner circumferential surface of the first cavity, and the button locking member is located in the second cavity and rotatably connected therewith.

The utility model discloses in, the interior circumference surface of second cavity is equipped with the guide way, and this guide way can restrict button locking piece rotation range.

According to a specific embodiment, the button is located in the button lock, the button push rod penetrates through the partition plate, and the button push rod is located in the first cavity and the second cavity simultaneously.

The utility model discloses in, the distance of the axial ascending length more than or equal to baffle to first rotation piece and second rotation piece junction of locking groove on the button push rod to can cooperate with the baffle, restrict the axial gliding distance of button portion edge pivot.

According to a specific embodiment, the second rotating member is formed with a hollow column from a bottom thereof in a direction toward the first rotating member, the hollow column abuts against the partition plate, and the pivot passes through the hollow column and is connected to the partition plate.

Further, joint locking piece and/or first elastic component cover is established hollow post is last, sets up like this and can make inner structure more stable to it is more succinct, reduces the manufacturing degree of difficulty.

The scope of the present invention is not limited to the technical solutions formed by specific combinations of the above technical features, but also covers other technical solutions formed by arbitrary combinations of the above technical features or equivalent features. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model provides a rotary joint of lockable, simple structure, stability to improve the unblock degree of difficulty. When being applied to foldable children products, the unlocking device can effectively prevent the unlocking of the rotary joint caused by misoperation, accidental collision and other reasons, thereby ensuring the stability and the safety of the children products in use.

Drawings

FIG. 1 is an exploded view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention in a locked state;

FIG. 3 is a cross-sectional view of the secondary locking mechanism of an embodiment of the present invention when unlocked;

fig. 4 is a cross-sectional view of an embodiment of the present invention in an unlocked state;

fig. 5A is a schematic view (side view) of a second elastic member according to an embodiment of the present invention;

fig. 5B is a schematic view (partial exploded view) of a second elastic member according to an embodiment of the present invention;

fig. 6 is an unlocking operation diagram of the secondary locking mechanism according to the embodiment of the present invention;

fig. 7 is a schematic view illustrating an unlocking operation of the knuckle lock according to the embodiment of the present invention;

FIG. 8 is a schematic diagram of the locking operation of the secondary locking mechanism after deployment according to the embodiment of the present invention;

in the above drawings: 1. a first rotating member; 11. a partition plate; 12. a first step; 13. a guide groove; 14. a second step; 15. a first limit post; 2. a second rotating member; 21. a second inner ring of teeth; 22. a hollow column; 3. a knuckle lock; 31. an outer tooth; 32. a first limit groove; 33. a second limit groove; 4. a first elastic member; 5. a button; 51. a push-button push rod; 52. a locking groove; 6. a button lock; 61. a blocking portion; 62. a second limit post; 7. a second elastic member; 81. a first bar member; 82. a second bar.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

The utility model relates to a joint rotates of lockable for the rotation of first member 81 and second member 82 is connected and is locked or the unblock relatively, and what fig. 1 to 8 show is the push rod that includes joint rotates's of lockable shallow, and first member 81 is the push rod down, and second member 82 is the push rod. Of course, the lockable rotary joint of the utility model can also be used for other children products which need to connect the two rod members in a lockable manner, such as a bracket of a sleeping basket.

As shown in fig. 1 to 4, the lockable rotary joint includes a first rotating member 1, a second rotating member 2 rotatably connected to the first rotating member 1 via a pivot, a joint locking member 3 provided between the first rotating member 1 and/or the second rotating member 2, a first elastic member 4 provided between the second rotating member 2 and the joint locking member 3, and a secondary locking mechanism.

The first rotating member 1 is fixedly disposed at an end of the first rod 81, the first rotating member 1 has a first cavity and a second cavity, the first cavity and the second cavity are separated by a partition 11 integrally disposed with the first rotating member 1, a first inner circumferential tooth is disposed on an inner circumferential surface of the first cavity, a center of the partition 11 is connected to one end of a pivot located in the first cavity, two symmetrical through holes are disposed on two sides of the pivot on the partition 11, a first step 12 is formed on one side of each of the two through holes, two second steps 14 are disposed on an inner circumferential surface of the second cavity, the two second steps 14 form two guide grooves 13 with the partition 11, and as shown in fig. 5A, a first limit post 15 is further disposed on the partition 11.

The second rotating member 2 is fixedly disposed at an end of the second rod 82, the second rotating member 2 has a third cavity, a hollow pillar 22 is formed from an inner bottom center of the third cavity in a direction toward the first rotating member 1, the hollow pillar 22 abuts against the partition plate 11, the pivot passes through the hollow pillar 22 to rotatably connect the first rotating member 1 and the second rotating member 2, and a second inner ring gear 21 is disposed on an inner circumferential surface of the third cavity.

The joint locking piece 3 is sleeved on the hollow column 22, the outer circumference of the joint locking piece 3 is provided with an outer tooth 31 which can be matched with the first inner ring tooth and the second inner ring tooth 21, one side of the joint locking piece 3, which is far away from the second rotating piece 2, is provided with a first limiting groove 32, and one side of the joint locking piece 3, which is close to the second rotating piece 2, is provided with a second limiting groove 33. The knuckle lock 3 has two working positions, the first working position being a locked working position, as shown in fig. 2, the external teeth 31 of the knuckle lock 3 are simultaneously located in the gullets of the first inner ring of teeth and in the gullets of the second inner ring of teeth 21; the second operating position is a rotational operating position, as shown in fig. 4, in which the external teeth 31 of the knuckle lock 3 are only located in the gullets of the second inner ring teeth 21, and the external teeth 31 of the knuckle lock 3 are disengaged from the gullets of the first inner ring teeth; when the first operating position is shifted to the second operating position, as shown in fig. 3, the knuckle lock member 3 slides toward the second rotating member 2 in the axial direction of the pivot shaft.

The first elastic element 4 is sleeved on the hollow column 22 and located between the second rotating element 2 and the joint locking element 3, so that the joint locking element 3 tends to be far away from the second rotating element 2, and the part of the first elastic element 4 is located in the second limiting groove 33 of the joint locking element 3, so that the first elastic element 4 is prevented from shifting in the third cavity.

The secondary locking mechanism has two working states, namely a locking state and an unlocking state, and is in the locking state, as shown in figure 2, the joint locking piece 3 is locked at the first working position; in the unlocked state of the secondary locking mechanism, as shown in fig. 3 and 4, the joint locking member 3 can slide in the axial direction of the pivot shaft so as to be connected to the first rotating member 1 and the second rotating member 2, or to be connected only to the second rotating member 2.

The secondary locking mechanism includes a push button 5 pressed on a side of the knuckle lock member 3 adjacent to the first rotating member 1, a push button lock member 6, and a second elastic member 7 for connecting the push button lock member 6 and the first rotating member 1.

The button 5 is provided with two axially extending button push rods 51, the button push rods 51 are simultaneously positioned in the first cavity and the second cavity, the button push rods 51 are pressed in the first limiting groove 32 of the joint locking piece 3 after penetrating through the partition plate 11, the free ends of the button push rods 51 are provided with inverted hooks, and the inverted hooks are tightly hooked with the first steps 12 on the through hole of the partition plate 11 to prevent reverse falling; the button push rod 51 is provided with a locking groove 52 in the axial direction. Of course, in other embodiments, the reverse hook and the like are not necessarily provided, and only the push-button rod 51 passes through the push-button locking member 6 and the first rotating member 1 and then presses against the knuckle locking member 3, so that the push-button rod 51 can push the knuckle locking member 3 to slide toward the second rotating member 2 against the elastic force of the first elastic member 4.

The button locking piece 6 is located between the button 5 and the first rotating piece 1 and is rotationally connected with the first rotating piece 1, the rotating axis line of the button locking piece 6 is coaxial with the pivot, two connecting portions which are symmetrically arranged are formed on the button locking piece 6, a blocking portion 61 is arranged on each of the two connecting portions, a reverse hook is arranged at the free end of each connecting portion and is hooked with a second step 14 on the inner circumference of the second cavity to prevent the reverse hook from falling off, meanwhile, the reverse hook is located in a guide groove 13, the guide groove 13 can limit the rotating angle of the button locking piece 6, and as shown in figure 5B, a second limiting column 62 is further arranged on the button locking piece 6. The button lock member 6 has two operation positions, one of which is a button lock operation position, as shown in fig. 2, in which the blocking portion 61 is inserted into the locking groove 52 to prohibit the button 5 from sliding toward the knuckle lock member 3, and the other of which is a button unlock operation position, as shown in fig. 3 and 4, in which the blocking portion 61 is disengaged from the locking groove 52 to allow the button 5 to slide toward the knuckle lock member 3, and when the button lock operation position is switched to the button unlock operation position, the button lock member 6 rotates with the blocking portion 61 and the button 5 slides in the axial direction of the pivot toward the knuckle lock member 3.

As shown in fig. 5A and 5B, one end of the second elastic member 7 is fixedly connected to the first position-limiting post 15, and the other end is fixedly connected to the second position-limiting post 62, and the second elastic member 7 is used to make the push-button locking member 6 tend to move from the push-button unlocking operation position to the push-button locking operation position. In this embodiment, the second elastic member 7 is a tension spring, and when the button locking member 6 is located at the button locking operating position, the tension spring is in a natural extension state, and when the button locking member 6 is located at the unlocking operating position, the tension spring is extended, and the elastic force of the tension spring causes the second limit column 62 to have a tendency to approach the first limit column 15, so that the button locking member 6 tends to be switched from the button unlocking operating position to the button locking operating position.

The working principle of the embodiment is as follows:

when unlocking, the button locking piece 6 is firstly rotated, the blocking part 61 on the button locking piece 6 leaves the locking groove 52, then the button 5 is pressed, the button push rod 51 of the button 5 pushes the joint locking piece 3 to slide towards the second rotating piece 2, after the button 5 is pressed out, the joint locking piece 3 is separated from the first rotating piece 1 and is positioned in the second rotating piece 2, unlocking is completed, and at the moment, the push rod and/or the push rod can be rotated. After the upper push rod and/or the lower push rod rotate, the outer teeth 31 of the joint locking piece 3 are staggered with the inner ring teeth of the first rotating piece 1, the joint locking piece 3 is always positioned in the second rotating piece 2, the first elastic piece 4 is in a compressed state, the blocking part 61 is abutted to the push button rod 51, and the second elastic piece 7 is in an extended state.

After the upper push rod and the lower push rod return to the locking position, the outer teeth 31 of the joint locking piece 3 are matched with the inner ring teeth of the first rotating piece 1, the joint locking piece 3 slides towards the first rotating piece 1 by the elastic force of the first elastic piece 4, the button 5 is driven to slide by the joint locking piece 3, and the blocking part 61 of the button locking piece 6 enters the locking groove 52 of the button push rod 51 again by the elastic force of the second elastic piece 7 to complete locking.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A lockable swivel joint for the swivel connection of a first lever (81) and a second lever (82), comprising

The first rotating piece (1) is fixedly arranged at the end part of the first rod piece (81), and first inner ring teeth are arranged on the first rotating piece (1);

the second rotating part (2) is fixedly arranged at the end part of the second rod piece (82), the second rotating part (2) is provided with second inner ring teeth (21), and the first rotating part (1) and the second rotating part (2) are rotatably connected through a pivot;

the joint locking piece (3), outer teeth (31) are arranged on the outer circumference of the joint locking piece (3), the joint locking piece (3) has two working positions, the first working position is a locking working position, the outer teeth (31) of the joint locking piece (3) are simultaneously located in tooth spaces of first inner ring teeth and tooth spaces of second inner ring teeth (21), the second working position is a rotating working position, the outer teeth (31) of the joint locking piece (3) are only located in tooth spaces of the second inner ring teeth (21), the outer teeth (31) of the joint locking piece (3) are separated from the tooth spaces of the first inner ring teeth, and when the first working position is converted to the second working position, the joint locking piece (3) slides towards the second rotating piece (2) along the axial direction of the pivot;

a first elastic element (4) located between the second rotating element (2) and the knuckle locking element (3) having a tendency to move the knuckle locking element (3) away from the second rotating element (2);

it is characterized in that the preparation method is characterized in that,

the rotary joint further comprises a secondary locking mechanism, the secondary locking mechanism is in a locking state, the joint locking piece (3) is locked at a first working position, the secondary locking mechanism is in an unlocking state, and the joint locking piece (3) is connected to the first rotating piece (1) and/or the second rotating piece (2) in a sliding mode along the axial direction of the pivot.

2. The lockable revolute joint according to claim 1, wherein the secondary locking mechanism comprises

A button (5), wherein the button (5) is pressed on one side of the joint locking piece (3) close to the first rotating piece (1);

a button locking member (6), said button locking member (6) having a blocking portion (61) thereon, said button locking member (6) having two operative positions, one operative position being a button locking operative position, said blocking portion (61) blocking said button (5) inhibiting said button (5) from sliding towards said knuckle locking member (3), the other operative position being a button unlocking operative position, said blocking portion (61) being clear of said button (5) permitting said button (5) to slide towards said knuckle locking member (3), said button (5) sliding axially along said pivot axis towards said knuckle locking member (3) when transitioning from said button locking operative position to said button unlocking operative position.

3. The lockable revolute joint according to claim 2, characterized in that the push-button lock (6) is located between the push-button (5) and the first revolute part (1) and is connected rotationally to the first revolute part (1), the axis of rotation of the push-button lock (6) being coaxial with the pivot axis, the push-button lock (6) carrying the blocking portion (61) in rotation when the push-button locking operative position is transferred to the push-button unlocking operative position.

4. The lockable revolute joint according to claim 3, characterized in that the push button (5) has an axially extending push button rod (51), which push button rod (51) passes through the push button lock (6) and the first rotary member (1) and presses against the joint lock (3).

5. The lockable revolute joint according to claim 4, characterized in that the push-button push rod (51) has a locking groove (52), the blocking portion (61) being inserted in the locking groove (52) in the push-button locking operative position, and the blocking portion (61) being disengaged from the locking groove (52) in the push-button unlocking operative position.

6. The lockable revolute joint according to claim 3, characterized in that a second elastic member (7) is connected between the push-button unlocking member and the first revolute member (1), the second elastic member (7) serving to make the push-button locking member (6) tend to move from the push-button unlocking operative position to the push-button locking operative position.

7. The lockable revolute joint according to claim 4, characterized in that the first rotary member (1) has a first cavity and a second cavity, which are separated by a partition (11) integral with the first rotary member (1), the first inner ring teeth being located on an inner circumferential surface of the first cavity, and the button lock (6) being located in the second cavity and rotatably connected thereto.

8. The lockable revolute joint according to claim 7, characterized in that the push-button (5) is located in the push-button lock (6), the push-button rod (51) passing through the partition (11), the push-button rod (51) being located in both the first and the second cavity.

9. The lockable revolute joint according to claim 7, characterized in that the second rotary member (2) is formed with a hollow column (22) from its bottom in the direction of the first rotary member (1), the hollow column (22) being in abutment with the partition (11), the pivot passing through the hollow column (22) and being connected to the partition.

10. The lockable revolute joint according to claim 9, characterized in that the joint lock (3) and/or the first elastic member (4) is/are fitted over the hollow column (22).