Umbrella stick capable of being folded and stored

Abstract

An umbrella middle rod capable of being folded and stored comprises a middle rod body, a first extension rod body connected with the middle rod body in a pivoted mode and a second extension rod body connected with the first extension rod body in a pivoted mode, the umbrella middle rod is switched between a folding state and a using state, and when the umbrella middle rod is in the folding state, the umbrella middle rod is folded. The middle rod body is folded with the first extension rod body and the second extension rod body, the first extension rod body and the second extension rod body are oppositely combined to define a containing space, and the middle rod body is located in the containing space. The middle rod body, the first extension rod body and the second extension rod body are pivoted relative to each other until the first extension rod body and the second extension rod body are both located on the extension line of the middle rod body, and due to the fact that the middle rod body is located in the containing space between the first extension rod body and the second extension rod body in the folding state, the whole storage is more tidy, and the storage effect is better. The umbrella can be conveniently placed in a carry-on bag, and the umbrella ribs and the umbrella cloth are not easy to damage.

Description

Technical Field

[0001] The invention relates to an umbrella, in particular to an umbrella rod which can be folded and stored. Background Art

[0002] Umbrellas are widely used, whether for keeping out the rain or shading the sun. Various types of umbrellas are designed and produced in response to market demand. In order to meet the trend of increasingly thin and light daily necessities in modern life, umbrellas with ribs that can be folded and a center rod that can be extended and shortened when stored have been produced.

[0003] However, when the umbrella is put into a carry-on bag, the ribs and the umbrella cloth are located outside the middle stick, so the umbrella cannot be neatly stored as a whole, and the ribs and the umbrella cloth are easily damaged. Therefore, in addition to the above-mentioned middle stick telescopic storage method, an umbrella that can provide another more neat storage method is also needed in the market. Summary of the invention

[0004] The object of the present invention is to provide a foldable umbrella rod that can be stored in a more orderly manner.

[0005] The foldable umbrella middle stick of the present invention comprises a middle stick body, the middle stick body is used for mounting a plurality of umbrella ribs, the umbrella middle stick comprises a first extension stick body pivotally connected to the middle stick body, the umbrella middle stick is transformed between a folded state and a use state, in the folded state, the middle stick body and the first extension stick body are folded with each other, when changing from the folded state to the use state, the middle stick body and the first extension stick body are pivoted relative to each other until the first extension stick body is located on the extension line of the middle stick body.

[0006] The foldable and storable umbrella middle rod of the present invention further includes a second extension rod body pivotally connected to the first extension rod body. In the folded state, the middle rod body and the first extension rod body and the second extension rod body are folded with each other, and the middle rod body is located between the first extension rod body and the second extension rod body. When changing from the folded state to the use state, the middle rod body and the first extension rod body and the second extension rod body are pivoted relative to each other until the first extension rod body and the second extension rod body are both located on the extension line of the middle rod body.

[0007] In the foldable umbrella middle rod of the present invention, when in the folded state, the first extension rod body and the second extension rod body are matched with each other to define a receiving space, and the middle rod body is located in the receiving space.

[0008] The foldable and storable umbrella middle rod of the present invention has a middle rod body with a pivot ear portion, a first extension rod body with two semicircular end plates, a circular arc plate-shaped extension rod portion connected to the end plates, and two pivot ears respectively formed on the end plates, and a second extension rod body with two semicircular end plates, a circular arc columnar extension rod portion connected to the end plates, a pivot ear portion formed on one of the end plates, and a notch opened on the other end plate. In the folded state, the first extension rod body and the second extension rod body are matched with each other to form a cylindrical box body, the end plates are coplanar with each other, and the pivot ear portion of the middle rod body and one of the pivot ears of the first extension rod body are accommodated in the notch of the second extension rod body.

[0009] The foldable and storable umbrella middle rod of the present invention has a middle rod body with a pivot ear portion, the first extension rod body has two semicircular end plates, an arc cylindrical extension rod portion connected to the end plates, two pivot ears respectively formed on the end plates, and an insertion hole opened in the extension rod portion and adjacent to the second extension rod body when in use, the second extension rod body has two semicircular end plates, an arc cylindrical extension rod portion connected to the end plates, a pivot ear portion formed on one of the end plates, and an insertion hole opened in the extension rod portion and adjacent to the first extension rod body when in use, the umbrella middle rod also includes a latch, in the folded state, the first extension rod body and the second extension rod body are matched with each other to form a cylindrical box body, the end plates are coplanar with each other, and in the use state, the latch is inserted in the insertion hole to maintain the second extension rod body on the extension line of the first extension rod body.

[0010] The foldable umbrella middle rod of the present invention further comprises a positioning pin pivotally mounted on the extension rod portion of the first extension rod body. In the use state, the positioning pin abuts against the middle rod body to maintain the first extension rod body on the extension line of the middle rod body.

[0011] The foldable umbrella rod of the present invention further comprises a storage shell connected to the end plate of the second extension rod body. In the folded state, the latch is stored in the storage shell.

[0012] The foldable umbrella rod of the present invention has a storage shell pivotally mounted on the end plate of the second extension rod body. When changing from the folded state to the use state, the storage shell pivots into the second extension rod body. When changing from the use state to the folded state, the storage shell pivots to the outside of the second extension rod body.

[0013] The foldable and storable umbrella middle rod of the present invention has a pivot ear portion, and the first extension rod and the second extension rod respectively include a through groove and a through hole connected to the through groove. The umbrella middle rod also includes two pivot plates respectively pivoted to the middle rod body, the first extension rod and the second extension rod, and three pivot ear members respectively pivoted to the pivot plates, the first extension rod, the pivot plates and the second extension rod. The pivot ear members are installed in the through holes of the first extension rod and the second extension rod. In the folded state, the pivot ear members partially protrude from the through holes and are respectively pivoted to the pivot plates. In the use state, the pivot plates and the pivot ear members are all located in the through grooves and through holes, and the middle rod body is partially located in the through hole of the first extension rod.

[0014] The foldable and storable umbrella middle rod of the present invention, in the pivot ear component, the pivot ear component installed between the first extension rod body and a pivot plate body between the first extension rod body and the second extension rod body is fixedly installed on the first extension rod body. When changing from the folded state to the use state, the middle rod body, the first extension rod body and the second extension rod body are pivoted through the pivot plate body and the pivot ear component, and the pivot plate body and the pivot ear component are pushed downward into the through groove and the through hole.

[0015] The foldable umbrella rod of the present invention has the first extension rod body and the second extension rod body both in the shape of long arc plates, the through groove is in the shape of an arc, the through hole is in the shape of a circle, the pivot plate body is in the shape of an arc plate corresponding to the through groove, and the pivot ear piece is in the shape of a cylinder corresponding to the through hole.

[0016] The foldable umbrella rod of the present invention, the second extension rod body also includes a curved gripping portion.

[0017] The foldable and storable umbrella middle rod of the present invention has a pivot ear portion, and the first extension rod and the second extension rod are both tubular. The umbrella middle rod also includes two pivot rods pivoted to the first extension rod, the second extension rod and the middle rod body, and three pivot ear members pivoted to the pivot rod, the first extension rod, the pivot rod and the second extension rod, respectively. The pivot ear members are installed in the first extension rod and the second extension rod. In the folded state, the pivot ear members partially protrude from the first extension rod and the second extension rod, and are respectively pivoted to the pivot rod. In the use state, the pivot rod and the pivot ear members are both located in the first extension rod and the second extension rod, and the middle rod body is partially located in the first extension rod.

[0018] The foldable umbrella rod of the present invention has a first extension rod body and a second extension rod body that are concave in cross-section and each include a concave portion. When in use, the concave portion of the first extension rod body and the concave portion of the second extension rod body are located on opposite sides, and the pivot rod member is concave in shape corresponding to the first extension rod body and is accommodated in the first extension rod body.

[0019] The foldable and stowable umbrella rod of the present invention also includes two double-concave tubes respectively located in the first extension rod body and the second extension rod body. Among the pivot ear members, the pivot ear members installed on the pivot rod member between the first extension rod body and the second extension rod body respectively include an ear portion, a stop portion connected to the ear portion, and a connecting portion connecting the stop portion and the double-concave tube member, the stop portion is moon-concave, and the connecting portion is double-concave.

[0020] The foldable umbrella middle stick of the present invention has a middle stick body in a double concave shape. In the use state, the pivot rods are all located in the first extension stick body, and the middle stick body is partially located in the first extension stick body.

[0021] The foldable umbrella rod of the present invention, the second extension rod body also includes a curved gripping portion.

[0022] The foldable umbrella middle stick of the present invention comprises a middle stick body, the middle stick body is used for installing a plurality of umbrella ribs, the umbrella middle stick comprises a first extension stick body connected to the middle stick body, a second extension stick body connected to the first extension stick body, and an elastic rope, the first extension stick body is in a hollow tube shape, the middle stick body also comprises an insertion portion inserted into the first extension stick body, the second extension stick body is sleeved in the first extension stick body, the elastic rope passes through the first extension stick body, and is connected to the insertion portion of the middle stick body. The umbrella middle rod is transformed between a folded state and a use state. In the folded state, the middle rod body and the first extension rod body are folded with each other, and the second extension rod body is accommodated in the first extension rod body. When changing from the folded state to the use state, the second extension rod body is pulled relative to the first extension rod body, and the insertion portion of the middle rod body is pulled by the elastic rope and inserted into the first extension rod body, until the first extension rod body and the second extension rod body are both located on the extension line of the middle rod body.

[0023] The beneficial effect of the present invention is that: in the folded state, the first extension rod body and the second extension rod body are matched with each other to define a storage space, and the middle rod body is located in the storage space, so the overall storage is more neat, easy to put into a carry-on bag, and the umbrella ribs and umbrella cloth are not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a three-dimensional diagram of a first preferred embodiment of the foldable umbrella rod of the present invention;

[0025] Figure 2 is a three-dimensional diagram of a middle rod body and a first extension rod body in a folded state of the first preferred embodiment;

[0026] Figure 3 is a three-dimensional diagram of the middle rod body, the first extension rod body and the second extension rod body of the first preferred embodiment in a use state;

[0027] Figure 4 is a perspective view of a second preferred embodiment of the foldable umbrella rod of the present invention;

[0028] Figure 5 is a partial cross-sectional stereoscopic view of the middle rod body, the first extension rod body and the second extension rod body in the folded state of the second preferred embodiment;

[0029] Figure 6 yes Figure 5 A partial enlarged view of

[0030] Figure 7 is a three-dimensional diagram of the second preferred embodiment in the use state;

[0031] Figure 8 is a partial stereoscopic view of a positioning pin of the second preferred embodiment abutting against the middle rod body;

[0032] Fig. 9 It is a three-dimensional exploded view of a third preferred embodiment of the foldable umbrella rod of the present invention;

[0033] Fig.10 is a three-dimensional diagram of the third preferred embodiment in the folded state;

[0034] Fig.11 yes Fig. 9 A partial enlarged view of

[0035] Fig.12 is a three-dimensional diagram of the third preferred embodiment in the use state;

[0036] Fig.13 is a perspective exploded view of a fourth preferred embodiment of the foldable umbrella rod of the present invention;

[0037] Fig.14 is a three-dimensional diagram of the fourth preferred embodiment in the folded state;

[0038] Fig.15 yes Fig.14 A partial enlarged view of

[0039] Fig.16is a three-dimensional diagram of the fourth preferred embodiment in the use state;

[0040] Fig.17 is a front view of a fifth preferred embodiment of a foldable umbrella rod of the present invention;

[0041] Fig.18 It is a front view of the fifth preferred embodiment in this usage state. DETAILED DESCRIPTION

[0042] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0043] See also Figure 1 , Figure 2 and Figure 3 A first preferred embodiment of the foldable umbrella center rod of the present invention comprises a center rod body 1, a first extension rod body 2, and a second extension rod body 3.

[0044] The middle rod body 1 has a pivot ear portion 11 for pivotally connecting with the first extension rod body 2. The middle rod body 1 is used for mounting a plurality of umbrella ribs (not shown).

[0045] The first extension rod body 2 is pivotally connected between the pivot ear portion 11 of the middle rod body 1 and the second extension rod body 3. The first extension rod body 2 has two semicircular end plates 21, an arc columnar extension rod portion 22 connected to the arc side edge of the end plate 21, and two pivot ears 23 respectively formed on the end plate 21.

[0046] The second extension rod body 3 is pivotally connected to the first extension rod body 2, and its shape is substantially similar to that of the first extension rod body 2. The second extension rod body 3 has two semicircular end plates 31, an arc cylindrical extension rod portion 32 connected to the end plates 31, a pivot ear portion 33 formed on one of the end plates 31, and a notch 34 opened on the other end plate 31, and the notch 34 is used for the middle rod body 1 and the pivot ears 11, 23 of the first extension rod body 2 to be clamped.

[0047] The umbrella rod is transformed between a folded state and a use state.

[0048] In the folded state, the middle rod body 1 and the first extension rod body 2 and the second extension rod body 3 are folded with each other, and the middle rod body 1 is located between the first extension rod body 2 and the second extension rod body 3 .

[0049] It is further explained that, in the folded state, the first extension rod body 2 and the second extension rod body 3 are matched with each other to form a cylindrical box body and define a accommodating space 100, and the middle rod body 1 is located in the accommodating space 100. The first extension rod body 2 and the second extension rod body 3 are used to protect the umbrella ribs and the umbrella cloth from being compressed and damaged in the folded state. At this time, the end plates 21 and 31 of the first extension rod body 2 and the second extension rod body 3 are coplanar with each other, and the pivot ear portion 11 of the middle rod body 1 and one of the pivot ears 23 of the first extension rod body 2 are accommodated in the notch 34 of the second extension rod body 3.

[0050] When changing from the folded state to the use state, the middle rod body 1 and the first extension rod body 2 and the second extension rod body 3 are pivoted relative to each other until the first extension rod body 2 and the second extension rod body 3 are both located on the extension line of the middle rod body 1 .

[0051] It is worth mentioning that the umbrella middle rod may also only include the middle rod body 1 and the first extension rod body 2, but not the second extension rod body 3 (not shown in the embodiment diagram), and in the folded state, the middle rod body 1 and the first extension rod body 2 are folded with each other, and when changing from the folded state to the use state, the middle rod body 1 and the first extension rod body 2 are pivoted relative to each other until the first extension rod body 2 is located on the extension line of the middle rod body 1. The aforementioned structure can also protect the middle rod body 1 through the first extension rod body 2.

[0052] See also Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The second preferred embodiment of the foldable umbrella rod of the present invention is the same as the structure of the first embodiment and will not be described again. The difference between the second embodiment and the first embodiment of the present invention is that the umbrella rod also includes a latch pin 4, a positioning pin 5, and a storage shell 6.

[0053] The latch pin 4 is stored in the storage housing 6 in the folded state, and the positioning pin 5 is pivotally mounted on the extension rod portion 22 of the first extension rod 2 .

[0054] The storage housing 6 is connected to the end plate 31 of the second extension rod 3. It is further explained that the storage housing 6 is pivoted to the end plate 31 of the second extension rod 3. When the folded state is changed to the use state, the storage housing 6 is pivoted into the second extension rod 3. When the use state is changed to the folded state, the storage housing 6 is pivoted to the outside of the second extension rod 3 for the latch 4 to be accommodated.

[0055] The first extension rod 2 further includes a socket 24 opened in the extension rod portion 22, and the socket 24 is adjacent to the second extension rod 3 in the use state. Similarly, the second extension rod 3 further includes a socket 35 opened in the extension rod portion 32, and the socket 35 is adjacent to the first extension rod 2 in the use state.

[0056] In the folded state, the storage shell 6 is located outside the end plate 31 of the second extension rod 3 , and the latch 4 is stored in the storage shell 6 .

[0057] When in use, the latch 4 is inserted into the insertion holes 24 and 35 of the first extension rod 2 and the second extension rod 3, so that the end plates 21 and 31 of the first extension rod 2 and the second extension rod 3 fit together and do not separate, that is, the second extension rod 3 is maintained on the extension line of the first extension rod 2, and the positioning pin 5 is against the middle rod body 1, maintaining the first extension rod 2 on the extension line of the middle rod body 1.

[0058] The latch pin 4 and the positioning pin 5 are both used to maintain the use state of the umbrella rod, so as to prevent the umbrella rod from suddenly changing to the folded state when in the use state.

[0059] When returning to the folded state, the positioning pin 5 is moved to allow the middle rod body 1 to pivot relative to the first extension rod body 2, and the latch 4 is lifted from the insertion holes 24, 35 to allow the first extension rod body 2 and the second extension rod body 3 to pivot relative to each other and return to the folded state.

[0060] See also Fig. 9 , Fig.10 , Fig.11 and Fig.12 The third preferred embodiment of the foldable umbrella rod of the present invention is the same as the structure of the first embodiment and will not be further described. The difference between the third embodiment and the first embodiment of the present invention is that the umbrella rod further includes two pivot plates 7 and three pivot ears 8.

[0061] The first extension rod 2 and the second extension rod 3 are both in the shape of long arc plates and respectively include an arc-shaped through slot 25 , 36 and a circular through hole 26 , 37 connecting the through slot 25 , 36 . In addition, the second extension rod 3 also includes a curved gripping portion 38 .

[0062] The pivot plate 7 is pivotally connected to the first extension rod 2 , the second extension rod 3 , and the middle rod body 1 , respectively, and the appearance of the pivot plate 7 corresponds to the through slots 25 , 36 and is substantially in the shape of an arc plate.

[0063] The three pivot ears 8 are pivotally connected between the pivot plate 7 and the first extension rod 2 and between the pivot plate 7 and the second extension rod 3 respectively, and the pivot ears 8 are cylindrical in shape corresponding to the through holes 26 and 37 of the first extension rod 2 and the second extension rod 3, and are installed in the through holes 26 and 37.

[0064] In the folded state, the pivot ear member 8 partially protrudes out of the through holes 26 and 37 and is pivotally connected to the pivot plate 7 respectively.

[0065] In the use state, the pivot plate 7 and the pivot ear 8 are all located in the through grooves 25 , 36 and through holes 26 , 37 , and the bottom end of the middle rod body 1 is located in the through hole 26 of the first extension rod body 2 .

[0066] It is further explained that the pivot ear member 8, which is installed between the first extension rod body 2 and a pivot plate body 7 between the first extension rod body 2 and the second extension rod body 3, is fixedly installed on the first extension rod body 2. When the folded state is changed to the use state, the middle rod body 1, the first extension rod body 2 and the second extension rod body 3 are pivoted through the pivot plate body 7 and the pivot ear member 8, and the pivot plate body 7 and the pivot ear member 8 are pushed downward into the through grooves 25 and 36.

[0067] See also Fig.13 , Fig.14 , Fig.15 and Fig.16 The fourth preferred embodiment of the foldable umbrella rod of the present invention is the same as the third embodiment in structure and will not be further described. The difference between the fourth embodiment and the third embodiment of the present invention is that the umbrella rod further includes two pivot rods 9 and two double concave tubes 90.

[0068] The middle rod body 1 is biconcave, and the first extension rod body 2 and the second extension rod body 3 are both tubular. It is further explained that the first extension rod body 2 and the second extension rod body 3 are moon-concave in cross-section and respectively include a recessed portion 27 and 39. The pivot rod 9 is pivotally connected to the middle rod body 1, the first extension rod body 2, and the second extension rod body 3, respectively, and the pivot rod 9 is moon-concave in shape corresponding to the shape of the first extension rod body 2, so as to facilitate the pivot rod 9 to be inserted into the first extension rod body 2 when in use.

[0069] The pivot ear 8 is pivotally connected between the first extension rod 2 , the pivot rod 9 , and the second extension rod 3 , respectively. That is, the pivot ear 8 is installed in the first extension rod 2 and the second extension rod 3 , and is pivotally connected to the pivot rod 9 .

[0070] The biconcave tube member 90 is respectively located in the first extension rod body 2 and the second extension rod body 3. Among the pivot ear members 8, the pivot ear members 8 installed on the pivot rod member 9 between the first extension rod body 2 and the second extension rod body 3 respectively include an ear portion 81, a stopper portion 82 connected to the ear portion 81, and a connecting portion 83 connecting the stopper portion 82 and the biconcave tube member 90, the stopper portion 82 is in a moon-concave shape corresponding to the first extension rod body 2 and the second extension rod body 3, and the connecting portion 83 is in a biconcave shape corresponding to the biconcave tube member 90.

[0071] Another pivot ear 8, that is, the pivot ear 8 installed between the middle rod body 1 and the first extension rod body 2, is in a moon-shaped concave shape.

[0072] In the folded state, the pivot ear 8 partially protrudes out of the first extension rod 2 and the second extension rod 3 and is pivotally connected to the pivot rod 9 respectively.

[0073] When in use, the recessed portion 27 of the first extension rod body 2 and the recessed portion 39 of the second extension rod body 3 are located on opposite sides, and the pivot rod 9 and the pivot ear 8 are both located in the first extension rod body 2 and the second extension rod body 3. It is further explained that the pivot rod 9 is accommodated in the first extension rod body 2, and the middle rod body 1 is partially located in the first extension rod body 2.

[0074] See also Fig.17 and Fig.18 The fifth preferred embodiment of the foldable umbrella middle rod of the present invention is the same as the structure of the first embodiment and will not be described again. The difference between the fifth embodiment of the present invention and the first embodiment is that: the first extension rod body 2 is connected to the middle rod body 1, the first extension rod body 2 is hollow tubular, the middle rod body 1 also includes an insertion portion 12 inserted in the first extension rod body 2, the second extension rod body 3 is sleeved in the first extension rod body 2, and the umbrella middle rod also includes an elastic rope 10 passing through the first extension rod body 2, and the elastic rope 10 connects the insertion portion 12 of the middle rod body 1 and the second extension rod body 3.

[0075] The umbrella middle rod is transformed between the folded state and the use state. In the folded state, the middle rod body 1 and the first extension rod body 2 are folded with each other, and the second extension rod body 3 is accommodated in the first extension rod body 2. When changing from the folded state to the use state, the second extension rod body 3 is pulled relative to the first extension rod body 2, and the insertion part 12 of the middle rod body 1 is pulled by the elastic rope 10 and inserted into the first extension rod body 2 until the first extension rod body 2 and the second extension rod body 3 are both located on the extension line of the middle rod body 1.

[0076] From the above description, it can be seen that the foldable and storable middle stick of the umbrella of the present invention is in the folded state, the first extension stick body 2 and the second extension stick body 3 define a storage space, and the middle stick body 1 is located in the storage space, so the overall storage is more tidy, easy to put into a carry-on bag, and the umbrella ribs and umbrella cloth are not easily damaged.

Claims

1. A foldable umbrella center rod, comprising: a center rod body, the center rod body is used for mounting a plurality of umbrella ribs, characterized in that: The umbrella middle rod also includes a first extension rod body pivotally connected to the middle rod body. The umbrella middle rod is transformed between a folded state and a use state. In the folded state, the middle rod body and the first extension rod body are folded with each other. When changing from the folded state to the use state, the middle rod body and the first extension rod body are pivoted relative to each other until the first extension rod body is located on the extension line of the middle rod body.

2. The foldable umbrella rod according to claim 1, characterized in that: The umbrella middle rod also includes a second extension rod pivotally connected to the first extension rod. In the folded state, the middle rod body and the first extension rod. The second extension rod are folded with each other, and the middle rod body is located between the first extension rod and the second extension rod. When the folded state is changed to the use state, the middle rod body and the first extension rod and the second extension rod are pivoted relative to each other until the first extension rod and the second extension rod are both located on the extension line of the middle rod body.

3. The foldable umbrella rod according to claim 2, characterized in that: In the folded state, the first extension rod body and the second extension rod body are matched with each other to define a receiving space, and the middle rod body is located in the receiving space.

4. The foldable umbrella rod according to claim 3, characterized in that: The middle rod body has a pivot ear portion, the first extension rod body has two semicircular end plates, an arc plate-shaped extension rod portion connected to the end plates, and two pivot ears respectively formed on the end plates, the second extension rod body has two semicircular end plates, an arc columnar extension rod portion connected to the end plates, a pivot ear portion formed on one of the end plates, and a notch opened on the other end plate. In the folded state, the first extension rod body and the second extension rod body are matched with each other to form a cylindrical box body, the end plates are coplanar with each other, and the pivot ear portion of the middle rod body and one of the pivot ears of the first extension rod body are accommodated in the notch of the second extension rod body.

5. The foldable umbrella rod according to claim 3, characterized in that: The middle rod body has a pivot ear portion, the first extension rod body has two semicircular end plates, an arc cylindrical extension rod portion connected to the end plates, two pivot ears formed respectively on the end plates, and a socket opened in the extension rod portion and adjacent to the second extension rod body when in use; the second extension rod body has two semicircular end plates, an arc cylindrical extension rod portion connected to the end plates, a pivot ear portion formed on one of the end plates, and a socket opened in the extension rod portion and adjacent to the first extension rod body when in use; the umbrella middle rod also includes a latch; in the folded state, the first extension rod body and the second extension rod body are matched with each other to form a cylindrical box body, and the end plates are coplanar with each other; in the use state, the latch is inserted in the socket to maintain the second extension rod body on the extension line of the first extension rod body.

6. The foldable umbrella rod according to claim 5, characterized in that: It also comprises a positioning pin pivotally arranged on the extension rod portion of the first extension rod body. In the use state, the positioning pin abuts against the middle rod body to maintain the first extension rod body on the extension line of the middle rod body.

7. The foldable umbrella rod according to claim 5, characterized in that: It also comprises a receiving shell connected to the end plate of the second extension rod. In the folded state, the latch is received in the receiving shell.

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