A collapsible sun umbrella rib

Abstract

The application discloses a foldable sunshade umbrella rib, which comprises a rib, the end of the rib is connected with a foldable extension rib, the end of the rib is provided with a sliding groove, the extension rib is connected with the rib by penetrating the sliding groove through a pin shaft, and the pin shaft can rotate and slide along the sliding groove, a convex platform is arranged in the sliding groove, and the pin shaft will fall into a limiting groove when penetrating the convex platform to position the extension rib, and the application is very convenient to use. The application has the advantages of simple and reasonable structure, convenient operation, effective extension of the length of the rib, increase of the sunshade area, satisfaction of the functional requirement of the product, reduction of the packaging and transportation cost, and the like.

Description

Technical Field

[0001] This invention belongs to the field of umbrella technology, and relates to a sunshade umbrella, specifically a foldable sunshade umbrella frame. Background Technology

[0002] Sun umbrellas, as an outdoor leisure tool, are widely used in squares, beaches, parks, courtyards, and other recreational places, providing people with a comfortable space to cool off. Most existing folding sun umbrellas use several ribs to support the canopy to achieve the effect of sun protection.

[0003] Currently, the length of the umbrella ribs used outdoors is fixed and cannot be increased arbitrarily. However, in order to achieve better sun protection outdoors, it is necessary to increase the sun protection area, which requires increasing the length of the umbrella ribs. The length of the umbrella ribs often determines the length of the packaging, and excessively long umbrella ribs will lead to a sharp increase in packaging and transportation costs.

[0004] Upon investigation, the existing Chinese patent CN201921502175.7, entitled "A Novel Automatic Opening and Closing Umbrella Rib," includes a first main rib and a beaded tail. A second main rib and a first fixing member are hinged to the first main rib. This utility model's automatic opening and closing umbrella rib is provided with a first main rib, a second main rib, a third main rib, a fourth main rib, and a fifth main rib. A first connecting wire is hinged between the second main rib and the first fixing member, a second connecting wire is hinged between the first main rib and the second fixing member, and a third connecting wire is hinged between the third main rib and the third fixing member. This automatic opening and closing umbrella rib is a four-fold umbrella rib, which makes the automatic opening and closing umbrella occupy less space when closed, making it easier to carry, and the umbrella surface is larger and lighter when opened. Pressing the sliding rod inserts the insertion rod into the inner cavity of the beaded tail, so that the insertion rod is inserted into the first through hole, making the insertion rod more firmly inserted into the beaded tail, effectively preventing the insertion rod from falling out of the beaded tail when closing the umbrella. This parasol is a folding umbrella, a small umbrella meant to be carried around, and cannot be used as a large outdoor umbrella. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a foldable sunshade rib with a simple and reasonable structure and convenient operation, which can effectively extend the length of the rib and reduce packaging costs, in view of the above-mentioned technical status.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a foldable parasol rib, including a rib and an extension rib, wherein the end of the rib is connected to a foldable extension rib, characterized in that: the extension rib is pivotally connected to the end of the rib, and when in the open state, the extension rib can be locked together with the rib.

[0007] Furthermore, a sliding groove is transversely opened on both the left and right sides of the end of the umbrella rib, and the fastener is a pin. Corresponding pin holes are opened on the left and right sides of the inner end of the extension rib. The pin passes through the pin hole on the left, the sliding groove, and the pin hole on the right, connecting the extension rib and the umbrella rib in a foldable manner. The pin can slide along the sliding groove. A locking tooth is provided near the inner end of the sliding groove, making the inner end of the sliding groove a locking hole with an opening. When the extension rib is pushed inward in the unfolded state, the pin passes through the locking tooth and falls into the locking hole, positioning and fixing the extension rib.

[0008] Preferably, the umbrella ribs are hollow tubular structures.

[0009] Preferably, the umbrella ribs are hollow square or rectangular tubes.

[0010] Preferably, the extension bone is a U-shaped tubular structure with a sealed upper end and an open lower end, and is made of rigid material or plastic material.

[0011] Furthermore, the upper end face of the extended bone, near the umbrella bone, is shaped into an arc-shaped guide surface that facilitates rotation.

[0012] Furthermore, the lower end of the elongated bone gradually slopes upwards towards the distal end of the elongated bone.

[0013] Finally, a sliding groove is opened horizontally on both sides of the end of the umbrella rib, and the fastener is a bolt. Corresponding connecting holes are opened on both sides of the inner end of the extension rib. The bolt passes through the connecting hole on the left, the sliding groove, and the connecting hole on the right, so as to foldably connect the extension rib and the umbrella rib together. The bolt can slide along the sliding groove. A boss with a bevel is provided near the inner end of the sliding groove, so that the inner end of the sliding groove becomes a positioning groove with an opening. When the extension rib is pushed inward in the unfolded state, the bolt passes through the boss and falls into the positioning groove, thus positioning and fixing the extension rib.

[0014] Compared with existing technologies, the advantages of this invention are as follows: a sliding groove is provided at the end of the umbrella rib, and the extension rib is connected to the umbrella rib by passing through the sliding groove via a pin or bolt. The extension rib can rotate and slide along the sliding groove via the pin or bolt. A locking tooth or boss is provided within the sliding groove. When the pin or bolt passes through the locking tooth or boss, it will fall into the locking hole or limiting groove, thus positioning the extension rib. This makes it very convenient to use. The invention has a simple and reasonable structure, is easy to operate, can effectively extend the length of the umbrella rib, increase the shading area, meet product functional requirements, and reduce packaging and transportation costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention in the extended bone folding state;

[0016] Figure 2 for Figure 1 A partial sectional view at the junction of the umbrella rib and the elongating bone;

[0017] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the present invention in the extended bone unfolded state;

[0018] Figure 4 for Figure 3 A partial sectional view;

[0019] Figure 5 This is a schematic diagram of the structure of Embodiment 1 of the present invention when the extended bone is spread out and parallel to the umbrella bone;

[0020] Figure 6 for Figure 5 A partial sectional view;

[0021] Figure 7 This is a schematic diagram of the structure of the extension bone being pushed inward and positioned by the umbrella bone after unfolding in Embodiment 1 of the present invention;

[0022] Figure 8 for Figure 7 A partial sectional view;

[0023] Figure 9 This is a partial sectional view of Example 2;

[0024] Figure 10 This is a schematic diagram of the structure for use on a sunshade umbrella in Example 1 (in the folded state);

[0025] Figure 11 This is a schematic diagram of the structure for use on a sunshade umbrella in Example 1 (in the open state);

[0026] Figure 12 This is a schematic diagram of the structure for use on a sunshade umbrella in Example 1 (in the unfolded and locked state); Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] like Figures 1-8 As shown, a foldable parasol frame includes a frame 1 and an extension frame 2. The extension frame 2 is foldably pivotally connected to the end of the frame 1 by fasteners. When in the open state, the extension frame 2 can be locked onto the frame 1 and connected together.

[0030] The specific structure is as follows: Umbrella rib 1 is a hollow square or rectangular tubular structure, and extension rib 2 is a U-shaped tubular structure with a sealed upper end and an open lower end. The cross-sectional sizes of the two are usually matched to allow extension rib 2 to fold and fit over umbrella rib 1. A sliding groove 11 is horizontally opened on both sides of the end of umbrella rib 1. A pin 3 is used as the fastener. Corresponding pin holes 22 are opened on both sides of the inner end of extension rib 2. Pin 3 passes through the left pin hole 22, the sliding groove 11, and the right pin hole 22, foldably and pivotally connecting extension rib 2 and umbrella rib 1. Pin 3 can slide back and forth along the sliding groove 11. A locking tooth 12 is provided near the inner end of the sliding groove 11, making the inner end of the sliding groove 11 a locking hole 13 with an opening. When extension rib 2 is pushed inward in the unfolded state, pin 3 passes through the locking tooth 12 and falls into the locking hole 13 at the inner end of the sliding groove, positioning extension rib 2 and preventing it from rotating or sliding. The upper end face of the extension rib 2, near the umbrella rib 1, is shaped into an arc-shaped guide surface 21 for easy rotation. In the open state, the lower end of the extension rib 2 gradually tilts upwards towards the end, thereby reducing the weight of the umbrella frame and improving the flexibility of the umbrella frame ribs.

[0031] The extension bone 2 is made of rigid material or plastic material.

[0032] The operation process is as follows:

[0033] Rotate and unfold the folded extended bone 2, as follows: Figure 3 , 4 As shown, after rotating 180°, the elongated bone 2 and the umbrella bone 1 are horizontally connected, as... Figure 5 , 6 As shown, push the lengthening bone 2 inward, as... Figure 7 , 8 As shown, the extension bone 2 passes through the locking tooth 12 and is positioned within the locking hole 13, preventing rotation and sliding, thus securing it in place. When folding is needed after use, pull the extension bone 2 outwards. The extension bone 2 will pass through the locking tooth 12 and fall into the sliding groove 11. Then pull it to the outside so that the extension bone 2 can be folded and fitted over the umbrella rib 1. It can then be rotated and folded. After folding, it resembles... Figure 1 , 2 As shown. See the structural diagram for its use in a sunshade umbrella. Figures 10-12 .

[0034] Example 2

[0035] like Figure 9A sliding groove 11 is horizontally opened on both sides of the end of the umbrella rib 1. The fastener is a bolt 3a. Corresponding connecting holes are opened on both sides of the inner end of the extension bone 2. The bolt passes through the connecting hole on the left, the sliding groove, and the connecting hole on the right, so that the extension bone and the umbrella rib can be foldably connected together. The bolt 3a can slide along the sliding groove 11. A boss 12a with a bevel is provided near the inner end of the sliding groove 11, so that the inner end of the sliding groove becomes a positioning groove 13a with an opening. When the extension bone is pushed inward in the unfolded state, the bolt 3a passes through the boss 12a and falls into the positioning groove 13a, fixing the extension bone 2 in place. The rest is similar to that of Example 1.

[0036] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A foldable parasol frame, comprising a frame and an extension rib, wherein the ends of the frame are connected to foldable extension ribs, characterized in that: The extension bone is pivotally connected to the end of the umbrella ribs. When in the open state, the extension bone can be locked onto the umbrella ribs and connected together. A sliding groove is horizontally opened on both the left and right sides of the end of the umbrella rib. The fastener is a pin. Corresponding pin holes are opened on the left and right sides of the inner end of the extension rib. The pin passes through the pin hole on the left, the sliding groove, and the pin hole on the right, connecting the extension rib and the umbrella rib in a foldable manner. The pin can slide along the sliding groove. A locking tooth is provided near the inner end of the sliding groove, making the inner end of the sliding groove a locking hole with an opening. When the extension rib is pushed inward in the unfolded state, the pin passes through the locking tooth and falls into the locking hole, positioning and fixing the extension rib; or; A sliding groove is horizontally opened on both the left and right sides of the end of the umbrella rib. The fastener is a bolt. Corresponding connecting holes are opened on the left and right sides of the inner end of the extension rib. The bolt passes through the connecting hole on the left, the sliding groove, and the connecting hole on the right, so that the extension rib and the umbrella rib can be folded together. The bolt can slide along the sliding groove. A boss with a bevel is provided near the inner end of the sliding groove, so that the inner end of the sliding groove becomes a positioning groove with an opening. When the extension rib is pushed inward in the unfolded state, the bolt passes through the boss and falls into the positioning groove, positioning and fixing the extension rib. The extension bone is a U-shaped tubular structure with a sealed upper end and an open lower end, and the extension bone can be folded and fitted over the outside of the umbrella ribs.

2. The umbrella ribs according to claim 1, characterized in that: The umbrella ribs are hollow tubular structures.

3. The umbrella ribs according to claim 2, characterized in that: The umbrella ribs are hollow square or rectangular tubes.

4. The umbrella ribs according to claim 1, characterized in that: The extension bone is made of rigid material or plastic material.

5. The umbrella ribs according to claim 4, characterized in that: The upper end face of the extended bone, near the umbrella bone, is shaped into an arc-shaped guide surface that facilitates rotation.

6. The umbrella ribs according to claim 5, characterized in that: The lower end of the elongated bone gradually slopes upwards towards the distal end of the elongated bone.

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