Telescopic carbon fiber umbrella rib of multi-folding umbrella

Abstract

The utility model relates to the technical field of umbrellas, in particular to a telescopic carbon fiber umbrella rib of a multi-folding umbrella, which comprises a middle rod, an upper umbrella nest arranged at the top of the middle rod, a lower umbrella nest slidably arranged on the middle rod, an inner rib hinged to the upper umbrella nest, and a telescopic rib slidably arranged on the inner rib through a sliding device. One end of the supporting rib is hinged to the lower umbrella nest, the other end of the supporting rib is hinged to the telescopic rib, the tail portion of the telescopic rib is further provided with a three-fold skeleton, the sliding device comprises a sliding sleeve arranged on the telescopic rib through a fast-assembling device, and a rolling device used for improving sliding stability is further arranged between the sliding sleeve and the inner rib.

Description

TECHNICAL FIELD

[0001] The utility model relates to umbrella technical field, especially a telescopic carbon fibre umbrella rib of multi-fold umbrella. BACKGROUND

[0002] Umbrella is indispensable in people's daily life, especially multi-fold umbrella, because it can be easily folded and carried, and is favored by consumers, the area of multi-fold umbrella after unfolding mainly depends on the length of the umbrella rib, so that the rain-shielding ability and easy portability of multi-fold umbrella are incompatible, therefore, a batch of umbrellas with telescopic umbrella ribs appear on the market, which can stretch the umbrella rib when opening the umbrella to expand the rain-shielding area, and when folding the umbrella, the umbrella rib is contracted to reduce the length of the umbrella, but too many telescopic times can easily wear the umbrella rib, increase the friction, make the umbrella unable to open and close normally, and affect the service life of the umbrella. SUMMARY

[0003] Therefore, in view of the above problems, the utility model provides a telescopic carbon fibre umbrella rib of multi-fold umbrella.

[0004] To achieve the above purpose, the technical scheme of the utility model provides a telescopic carbon fibre umbrella rib of multi-fold umbrella, which comprises a middle rod, an upper umbrella nest arranged at the top of the middle rod, a lower umbrella nest slidably arranged on the middle rod, an inner rib hingedly connected to the upper umbrella nest, a telescopic rib slidably arranged on the inner rib through a sliding device, a branch rib having one end hingedly connected to the lower umbrella nest and the other end hingedly connected to the telescopic rib, and a three-fold framework arranged at the tail of the telescopic rib, wherein the sliding device comprises a sliding sleeve arranged on the telescopic rib through a quick mounting device, and a rolling device arranged between the sliding sleeve and the inner rib for improving the sliding stability.

[0005] Further improvement is that the rolling device comprises at least two first sliding grooves arranged on the inner rib, a second sliding groove arranged on the sliding sleeve and corresponding to the first sliding grooves, and a plurality of rolling beads arranged between the first sliding grooves and the second sliding groove, the sliding sleeve is further provided with a leakage prevention device for preventing the rolling beads from falling off, and the inner rib is further provided with a limiting block.

[0006] Further improvement is that the leakage prevention device comprises a connecting thread arranged in the sliding sleeve and located on the upper and lower sides of the sliding sleeve, and an external toothed nut locked on the connecting thread, wherein the inner side of the external toothed nut is not in contact with the inner rib.

[0007] Further improvement is that the quick mounting device comprises a support plate arranged on the sliding sleeve, an elastic plate having one end fixedly connected to the support plate, and a T-shaped insertion slot arranged on the telescopic rib, wherein the elastic plate extends outward and is clamped in the T-shaped insertion slot, and a clamping device is arranged between the T-shaped insertion slot and the elastic plate.

[0008] Further improvement is that the clamping device comprises a clamping block arranged on the elastic plate and located away from the supporting plate, a clamping groove arranged on the T-shaped slot and used for clamping the clamping block, and an avoiding opening arranged on the T-shaped slot and used for avoiding deformation of the elastic plate.

[0009] Further improvement is that the first connecting bone is hingedly connected to the upper umbrella nest, and the other end of the first connecting bone is hingedly connected to the supporting bone.

[0010] Further improvement is that the three-fold frame comprises a second folding bone hingedly connected to the telescopic bone and a third folding bone hingedly connected to the second folding bone, and the second folding bone, the third folding bone and the telescopic bone are further provided with a stabilizing device.

[0011] Further improvement is that the stabilizing device comprises a second connecting bone having one end hingedly connected to the supporting bone and the other end hingedly connected to the second folding bone, and a third connecting bone having one end hingedly connected to the telescopic bone and the other end hingedly connected to the third folding bone.

[0012] Further improvement is that the inner bone, the telescopic bone, the supporting bone, the second folding bone and the third folding bone are all carbon fiber bones.

[0013] The advantages and beneficial effects of the umbrella are as follows.

[0014] The umbrella has the advantages of simple structure and convenient use, the rolling device is arranged between the telescopic bone and the inner bone, the rolling clamping form is adopted, the friction force of the telescopic bone when sliding on the inner bone is reduced, the sliding stability is improved, the number of normal opening and closing of the umbrella is increased, and the service life of the umbrella is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the telescopic carbon fiber umbrella rib of the multi-fold umbrella.

[0016] Figure 2 It is a telescopic carbon fiber umbrella rib and inner bone schematic diagram of the telescopic carbon fiber umbrella rib of the multi-fold umbrella.

[0017] Figure 3 It is a telescopic carbon fiber umbrella rib sliding sleeve section view schematic diagram of the telescopic carbon fiber umbrella rib of the multi-fold umbrella.

[0018] Figure 4 It is an A part enlarged schematic diagram of the telescopic carbon fiber umbrella rib of the multi-fold umbrella.

[0019] Figure 5 It is a telescopic carbon fiber umbrella rib sliding sleeve schematic diagram of the telescopic carbon fiber umbrella rib of the multi-fold umbrella.

[0020] Figure 6 It is a telescopic carbon fiber umbrella rib telescopic bone part schematic diagram of the telescopic carbon fiber umbrella rib of the multi-fold umbrella.

[0021] In the diagram: 101, middle rod; 102, upper umbrella nest; 103, lower umbrella nest; 104, inner rib; 105, telescopic rib; 106, support rib; 107, sliding sleeve; 108, first sliding groove; 109, second sliding groove; 110, external thread nut; 111, support plate; 112, elastic plate; 113, T-slot; 114, locking block; 115, locking groove; 116, rubber pad; 117, second folding rib; 118, third folding rib; 119, second connecting rib; 120, third connecting rib; 121, first connecting rib; 122, limiting block; 123, clearance opening. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0023] like Figures 1-6 As shown, a telescopic carbon fiber umbrella rib for a multi-fold umbrella includes a center rod 101, an upper umbrella nest 102 disposed at the top of the center rod 101, a lower umbrella nest 103 slidably disposed on the center rod 101, an inner rib 104 hinged to the upper umbrella nest 102, and a telescopic rib 105 slidably disposed on the inner rib 104 via a sliding device. A support rib 106 is hinged at one end to the lower umbrella nest 103 and at the other end to the telescopic rib 105. The telescopic rib 105 also has a three-fold frame at its tail. The sliding device includes a sliding sleeve 107 disposed on the telescopic rib 105 via a quick-release device. A rolling device for improving sliding stability is also provided between the sliding sleeve 107 and the inner rib 104.

[0024] To improve the smoothness of the sliding of the telescopic bone 105, the rolling device includes: at least two first sliding grooves 108 disposed on the inner bone 104, and a second sliding groove 109 disposed on the sliding sleeve 107 corresponding to the first sliding grooves 108. A plurality of rolling balls are also disposed between the first sliding grooves 108 and the second sliding grooves 109. The sliding sleeve 107 is also provided with a leak-proof device to prevent the rolling balls from falling off. The inner bone 104 is also provided with a limiting block 122.

[0025] To prevent the ball bearings from falling out, the leak-proof device includes: a connecting thread (not shown in the figure) formed inside the sliding sleeve 107 and located on the upper and lower sides of the sliding sleeve 107, and an external thread nut 110 locked on the connecting thread, wherein the inner side of the external thread nut 110 does not contact the inner bone 104.

[0026] In order to facilitate the telescopic bone 105 to be installed on the inner bone 104, the quick mounting device comprises a support plate 111 arranged on the sliding sleeve 107, an elastic plate 112 with one end fixedly connected with the support plate 111, and a T-shaped slot 113 arranged on the telescopic bone 105, the elastic plate 112 extending outward to be clamped in the T-shaped slot 113, and a clamping device arranged between the T-shaped slot 113 and the elastic plate 112.

[0027] In order to prevent the telescopic bone 105 from falling off the sliding sleeve 107, the clamping device comprises a clamping block 114 arranged on the elastic plate 112 and located away from the support plate 111, a clamping groove 115 arranged on the T-shaped slot 113 for clamping the clamping block 114, and an avoiding opening 123 arranged on the T-shaped slot 113 for providing an avoiding space for the deformation of the elastic plate 112, and a rubber pad 116 arranged between the elastic plate 112 and the sliding sleeve 107 for enhancing the strength of the elastic plate 112 to prevent it from being broken.

[0028] The insertion part of the telescopic bone 105 and the sliding sleeve 107 is located on the side surface, and the stress direction of the telescopic bone 105 and the inner bone 104 is mainly along the axial direction of the telescopic bone 105 and the inner bone 104, so that the side surface insertion form has sufficient strength.

[0029] In order to improve the strength of the umbrella, the three-fold frame comprises a second fold bone 117 hingedly connected with the telescopic bone 105 and a third fold bone 118 hingedly connected with the second fold bone 117, and a stabilizing device is further arranged between the second fold bone 117 and the third fold bone 118 and the telescopic bone 105.

[0030] In order to improve the stress strength of the umbrella, the stabilizing device comprises a second connecting bone 119 with one end hingedly connected with the support bone 106 and the other end hingedly connected with the second fold bone 117, and a third connecting bone 120 with one end hingedly connected with the telescopic bone 105 and the other end hingedly connected with the third fold bone 118.

[0031] The first connecting bone 121 is hingedly connected with the upper umbrella nest 102, and the other end of the first connecting bone 121 is hingedly connected with the support bone 106.

[0032] In order to reduce the weight of the umbrella, the inner bone 104, the telescopic bone 105, the support bone 106, the second fold bone 117 and the third fold bone 118 are all carbon fiber bones.

[0033] Working principle: during installation, an outer tooth nut 110 is first locked on the sliding sleeve 107, then the sliding sleeve 107 and the rolling ball are installed on the inner bone 104, and finally the other outer tooth nut 110 is locked on the sliding sleeve 107, at which time the installation of the sliding sleeve 107 is completed.

[0034] Then the user, the branch bone 106, telescopic bone 105, second folding bone 117 and third folding bone 118 are hinged together, after the hinge is completed, the sliding sleeve 107 is adjusted to the position of aligning the telescopic bone 105, the insertion and engagement are completed, when the insertion and engagement, the T-shaped slot 113 generates pressure to the elastic plate 112 and the clamping block 114, so that the elastic plate 112 is deformed and avoids, when the clamping block 114 corresponds to the clamping groove 115, the reset is completed, at this time, the installation is completed;

[0035] When the umbrella is opened, the lower nest 103 pushes the branch bone 106 to move, so that the telescopic umbrella band with the sliding sleeve 107 slides on the inner bone 104, the telescopic opening is completed, only the rolling friction between the telescopic bone 105 and the inner bone 104 occurs when sliding, the smoothness of the opening of the umbrella is greatly improved, the wear and tear generated when the umbrella is opened and closed is reduced, and the service life of the umbrella is improved.

[0036] The basic principle and main features of the utility model and its advantages are shown and described above, and the skilled in the art should understand that the utility model is not limited by the above examples, the above examples and the description described in the above examples and the description are only to illustrate the principle of the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A telescopic carbon fiber umbrella rib for a multi-fold umbrella, comprising a central rod, an upper umbrella nest disposed at the top of the central rod, a lower umbrella nest slidably disposed on the central rod, an inner rib hinged to the upper umbrella nest, and a telescopic rib slidably disposed on the inner rib via a sliding device, with one end hinged to the lower umbrella nest and the other end hinged to the telescopic rib, wherein the tail of the telescopic rib is further provided with a three-fold frame, characterized in that: The sliding device comprises a sliding sleeve arranged on the telescopic bone through a quick mounting device, and a rolling device is arranged between the sliding sleeve and the inner bone to improve the sliding stability.

2. A telescoping carbon fiber rib for a multi-fold umbrella according to claim 1, wherein: The rolling device comprises at least two first sliding grooves arranged on the inner bone, a second sliding groove corresponding to the first sliding grooves arranged on the sliding sleeve, a plurality of rolling balls arranged between the first sliding grooves and the second sliding groove, a leakage prevention device arranged on the sliding sleeve to prevent the rolling balls from falling off, and a limiting block arranged on the inner bone.

3. A telescoping carbon fiber rib for a multi-fold umbrella according to claim 2, wherein: The leakage prevention device comprises a connecting thread arranged in the sliding sleeve and located on the upper and lower sides of the sliding sleeve, and an external toothed nut arranged on the connecting thread, wherein the inner side of the external toothed nut is not in contact with the inner bone.

4. A telescoping carbon fiber rib for a multi-fold umbrella according to claim 1, wherein: The quick mounting device comprises a support plate arranged on the sliding sleeve, an elastic plate having one end fixedly connected to the support plate, and a T-shaped insertion slot arranged on the telescopic bone, wherein the elastic plate extends outward to be clamped in the T-shaped insertion slot, and a clamping device is arranged between the T-shaped insertion slot and the elastic plate.

5. A telescoping carbon fiber rib for a multi-fold umbrella according to claim 4, wherein: The clamping device comprises a clamping block arranged on the elastic plate and located away from the support plate, a clamping groove arranged on the T-shaped insertion slot to clamp the clamping block, and an avoiding opening arranged on the T-shaped insertion slot to provide an avoiding space for the deformation of the elastic plate, and a rubber pad is further arranged between the elastic plate and the sliding sleeve to enhance the strength of the elastic plate and prevent it from being broken.

6. A telescoping carbon fiber rib for a multi-fold umbrella according to claim 1, wherein: A first linkage bone is hingedly connected to the upper umbrella nest, and the other end of the first linkage bone is hingedly connected to the supporting bone.

7. A telescoping carbon fiber rib for a multi-fold umbrella according to claim 1, wherein: The three-fold framework comprises a second fold bone hingedly connected to the telescopic bone, and a third fold bone hingedly connected to the second fold bone, and a stabilizing device is further arranged between the second fold bone, the third fold bone and the telescopic bone.

8. A telescoping carbon fiber rib for a multi-fold umbrella according to claim 7, wherein: The stabilizing device comprises a second linkage bone having one end hingedly connected to the supporting bone and the other end hingedly connected to the second fold bone, and a third linkage bone having one end hingedly connected to the telescopic bone and the other end hingedly connected to the third fold bone.

9. The telescoping carbon fiber rib of a multi-fold umbrella of claim 1, wherein: The inner bone, the telescopic bone, the supporting bone, the second fold bone and the third fold bone are all carbon fiber bones.

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