CN215077061U

CN215077061U - Support frame and rotation limiting device

Info

Publication number: CN215077061U
Application number: CN202121313319.1U
Authority: CN
Inventors: 孙书伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-12
Filing date: 2021-06-12
Publication date: 2021-12-10
Anticipated expiration: 2031-06-12

Abstract

The invention relates to a supporting frame and a rotary limiting device, which can be used for supporting frames of crib bags, pet bags, tents, mosquito nets and the like, can be used for supporting the mosquito nets or the tents and can be folded or unfolded, and the technical scheme of the invention is as follows: adopt rotatory stop device to connect two main spokes, vice spoke is installed on main spoke, adopt rotation axis connection vice spoke and main spoke, only adopt a rotation axis lug connection between the main spoke and between vice spoke and the main spoke, because only adopt a rotation axis lug connection between the main spoke and between vice spoke and the main spoke, the structure is more stable, the operation is simpler, because adopt rotatory stop device to connect two main spokes, can be in the fixed state of expansion of a plurality of angles, make it be in half expansion or the state of full expansion, especially, adopt the oval ring structure shell fragment, oval ring deformation direction is perpendicular with the rotation axis, perfect solution produces the oblique cutting force parallel with the rotation axis, make rotary joint propped open, lose limiting displacement's defect.

Description

Support frame and rotation limiting device

Technical Field

The invention relates to a supporting frame and a rotation limiting device, which can be used for supporting frames of crib bags, pet bags, tents, mosquito nets and the like, are used for supporting the mosquito nets or the tents, and can be folded or unfolded for use.

Background

For people who carry babies or like pets, no matter go out to play or stay at home at ordinary times, a comfortable and quiet sleeping cot is essential for children or pets, and particularly when going out to travel, the safe and comfortable cot convenient to carry is very useful, similar products are also numerous in the market, people have great demands on the products, and the products need a support for supporting a mosquito net, are convenient and easy to use, and are foldable and convenient to carry.

Earlier, the inventors submitted:

application No.: 2021105600350, respectively; 2021211034420, a support frame;

application No.: 2021101860734, respectively; 2021203711509, a folding crib and support frame;

application No.: 2020113236249, respectively; 2020227289815, a folding supporting rod and a rotary joint.

The implementation finds out major defects, market approval is not obtained after popularization, product research and development fails, continuous iteration is needed, and the defects are improved.

Application No.: 2021105600350, respectively; 2021211034420, a supporting frame, which is composed of a main spoke, a fixed plate and a plurality of auxiliary spokes, wherein the fixed plate is provided with a plurality of rotating shafts, and the main spoke and the auxiliary spokes are connected with the fixed plate through the rotating shafts;

the fixed plate is arranged between the main spoke and the auxiliary spoke, which is equivalent to the main spoke and the auxiliary spoke are indirectly connected and connected by two rotary joints, so the structure stability is poor and the operation is complicated.

Application No.: 2021101860734, respectively; 2021203711509, a folding crib and support frame; because the supporting frame adopts a plurality of spokes with one end connected with the rotary joint to form a spoke unit, the middle connecting rod is connected with two spoke units to form a fan-shaped spoke group, and the spoke units can rotate around the middle connecting rod;

the connecting rod has the defects that the middle connecting rod is arranged between the two spoke units, the spoke units are also indirectly connected and connected by the two rotary joints, the structural stability is poor, and the operation is complicated.

Application No.: 2020113236249, respectively; 2020227289815, a folding support bar and a rotary joint, which are locked by the mutual engagement of a locking slot and a locking buckle and used for keeping the shape of the unfolded and folded state; and application No.: 2021105600350, respectively; 2021211034420, a supporting frame, which adopts the mode of convex points and grooves to limit the rotation angle;

the common defect is that in the rotating process, the structures of the clamping groove and the buckle or the salient point and the groove can generate oblique cutting force parallel to the rotating shaft, so that the rotating joint is propped open by oblique cutting force, the limiting effect is lost, the elastic deformation coefficient caused by the structure of the buckle or the salient point is small, the elastic force cannot play a role when the elastic force is too small, and the elastic force is easy to break when the elastic force is too large.

In particular, the generation of the oblique cutting force parallel to the rotation axis and the opening of the rotary joint are the biggest reasons for the product being unusable, and if the angle limiting device needs to be rotated, the direction of the elastic force must be perpendicular to the rotation axis.

Disclosure of Invention

The invention aims to provide a foldable and integrated support frame with a compact structure, which is used for supporting a mosquito net, is very convenient to unfold or fold, does not need complicated operations such as disassembly and assembly, and supports one-key unfolding and folding.

A supporting frame comprises main spokes and auxiliary spokes, wherein a rotation limiting device is arranged between the main spokes and is connected with the two main spokes, the auxiliary spokes are arranged on the main spokes and are connected with the auxiliary spokes and the main spokes by rotating shafts, and only one rotating shaft is directly connected between the main spokes and between the auxiliary spokes and the main spokes.

The rotation limiting device is provided with an elastic sheet and a clamping groove, and locking force is formed by mutual occlusion of the elastic sheet and the clamping groove.

The elastic sheet adopts a plurality of annular arrays.

The clamping grooves are formed in a plurality of annular arrays.

The elastic sheet is of an elliptical ring structure, and the deformation direction of the elliptical ring is perpendicular to the rotation axis.

The elastic sheet and the rotary limiting device are integrally formed in an injection molding mode.

The clamping groove and the rotary limiting device are integrally formed in an injection molding mode.

The technical scheme of the invention is as follows: the rotary limiting device is adopted to connect the two main spokes, the auxiliary spokes are arranged on the main spokes, the rotary shafts are adopted to connect the auxiliary spokes and the main spokes, and only one rotary shaft is adopted to be directly connected between the main spokes and between the auxiliary spokes and the main spokes.

The invention has the beneficial effects that: because only adopt a rotation axis lug connection between the main spoke and between vice spoke and the main spoke, the structure is more stable, and the operation is simpler, owing to adopt rotatory stop device to connect two main spokes, can be at the fixed state of expanding of a plurality of angles, make it be in half expansion or the state of expanding entirely, especially, adopt oval ring structure shell fragment, oval ring deformation direction is perpendicular with the rotation axis, perfect solution produces the oblique cutting force parallel with the rotation axis for rotary joint is propped open, loses limiting displacement's defect.

Drawings

The invention is further illustrated by the following figures and examples,

figure 1 is a perspective view of the support frame in a fully extended condition,

figure 2 is a front view of the support frame in a fully expanded state,

figure 3 is a top view of the support frame in a fully expanded state,

figure 4 is a perspective view of the support frame in a semi-expanded state,

FIG. 5 is a perspective view of the support frame in a fully extended state and the internal structure of the rotation limiting device,

figure 6 is a front sectional view of the support frame in a fully expanded state,

figure 7 is an enlarged perspective cross-sectional view of the support frame in a fully expanded state,

fig. 8 is a perspective view of the support frame in a folded state.

The numbers in the figures are respectively: 1: a main spoke; 2: a secondary spoke; 3: the auxiliary spoke connecting part; 4: a rotation limiting device; 5: the auxiliary spokes are connected with the rotating shaft; 6: a card slot; 7: a slot clamping disc; 8: a spring plate; 9: a spring plate through hole; 10: a mosquito net.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. These exemplary embodiments are provided so that those skilled in the art can clearly understand the present invention and can implement the present invention according to the description herein. The drawings and detailed description are not intended to limit the invention, which is defined by the appended claims.

As shown in fig. 1 and 2, a supporting frame is composed of main spokes and auxiliary spokes, wherein a rotation limiting device is arranged between the main spokes and is connected with the two main spokes, the auxiliary spokes are arranged on the main spokes, a rotating shaft is adopted to connect the auxiliary spokes and the main spokes, and only one rotating shaft is adopted to be directly connected between the main spokes and between the auxiliary spokes and the main spokes.

As shown in fig. 2, the size of the rotary limiting device is large, the size of the auxiliary spoke is small, the auxiliary spoke is directly installed beside the rotary limiting device on the main spoke, the main spoke only needs to be rotated to unfold and fold in one key mode, the auxiliary spoke is connected with the main spoke through a rotating shaft, no resistance is flexible, and the auxiliary spoke is unfolded to a fixed angle through the tension of a mosquito net and the cloth length of the mosquito net when the auxiliary spoke is unfolded.

As shown in fig. 1, 2 and 7, the rotation limiting device is provided with an elastic sheet and a clamping groove, and a locking force is formed by mutual engagement of the elastic sheet and the clamping groove.

The spring plate adopts a plurality of annular arrays to increase the locking force.

The clamping grooves are formed by a plurality of annular arrays to form a clamping groove disc, and a plurality of stress points are formed.

As shown in fig. 7, the elastic sheet is an elliptical ring structure, the deformation direction of the elliptical ring is perpendicular to the rotation axis, the elastic sheet of the elliptical ring structure has a large elastic deformation coefficient, the deformation direction of the elastic sheet can only press and deform the elliptical ring elastic sheet along the short axis direction, the elastic force is perpendicular to the rotation axis, no tangential force can be generated, the rotation limiting device can not be unfolded, and due to the elasticity of the material, the elliptical ring elastic sheet can be rapidly rebounded and locked when rotating to the next slot.

The elastic sheet and the rotary limiting device are integrally injection-molded, as shown in fig. 4, an elastic sheet through hole is formed in the shell of the rotary limiting device, and the elastic sheet is disconnected from the shell, so that the elastic sheet can be freely deformed and is not influenced by the shell.

As shown in fig. 5, the slot and the slot disc are integrally formed with the rotation limiting device by injection molding, and the slot disc is integrally connected with the housing of the rotation limiting device and fixed on the housing.

When the foldable support frame is used, the main spoke at one end is connected with the cushion, the other end is not connected, the main spoke at the other end which is not connected is rotated, the support frame can be unfolded or folded, and the support frame is in a half-unfolded state when rotated by 90 degrees.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a support frame, its characterized in that, support frame comprises main spoke, vice spoke, be provided with rotatory stop device between the main spoke, rotatory stop device connects two main spokes, and vice spoke is installed on main spoke, adopts the rotation axis to connect vice spoke and main spoke.

2. The support frame of claim 1, wherein the rotation limiting device is provided with a spring and a slot, and the locking force is formed by mutual engagement of the spring and the slot.

3. A support frame as claimed in claim 2, wherein the resilient members are in the form of elliptical rings, the deformation direction of the rings being perpendicular to the axis of rotation.

4. A rotary limiting device is characterized in that the rotary limiting device is provided with an elastic sheet and a clamping groove, and locking force is formed by mutual engagement of the elastic sheet and the clamping groove.

5. A rotation limiting device as claimed in claim 4, wherein the resilient member is in the form of a plurality of annular arrays.

6. A rotation limiting device as claimed in claim 4, wherein the pockets are in a plurality of annular arrays.

7. The rotation limiting device of claim 4, wherein the resilient member is an elliptical ring, and the deformation direction of the elliptical ring is perpendicular to the rotation axis.

8. The rotation limiting device of claim 4, wherein the resilient tab is integrally injection molded with the rotation limiting device.

9. The rotation limiting device of claim 4, wherein the slot is integrally injection molded with the rotation limiting device.