Center lock supporting structure and sunshade

Abstract

The utility model belongs to the technical field of sunshade umbrellas, and particularly relates to a center lock supporting structure and a sunshade umbrella. The upper end of the supporting rod assembly is hinged to the lock cap; the bottom locking assembly is hinged to the lower end of the supporting rod assembly; the upper end of the lock rod is arranged in the lock cap, and the lower end of the lock rod is movably connected with the lock bottom assembly; the lock is characterized in that a telescopic assembly is movably arranged on the lock rod, the lower end of the telescopic assembly is connected to the lock bottom assembly, and the lock rod and the telescopic assembly are coaxially arranged; when the supporting rod assembly is in a folded state, the telescopic assembly extends out of the locking rod; when the supporting rod assembly is in an open state, the telescopic assembly retracts back to the lock cover, and the lower end of the lock rod is connected with the lock bottom assembly in a clamped mode.

Description

Technical Field

[0001] The present invention relates to the technical field of parasols, and in particular to a central lock support structure and a parasol. Background Art

[0002] The center lock is a supporting structure that can support the entire tent and make the tent evenly stressed. Its specific working principle can be found in Chinese patent CN111287548B. It can also be moved inside the parasol.

[0003] Chinese patent CN210195428U discloses a center lock and a tent. This center lock has the following disadvantages when used:

[0004] 1. When the tent is not unfolded, the lock rod and the lock bottom are separated. Therefore, when unfolding the tent, personnel need to lift and control the lock bottom to align and connect it with the lower end of the lock rod. In this way, during the alignment and connection process, the operation will be more difficult due to vision and force problems.

[0005] 2. When the tent is unfolded, the connection structure between the lock rod and the lock bottom is relatively complicated, making it inconvenient to open and close. Summary of the Invention

[0006] The purpose of this technical solution is to provide a center lock support structure and a parasol, which solves the problem of difficult alignment of the lock bottom and the lock rod of the original center lock by arranging a telescopic component in the inner cavity of the lock rod that can guide the alignment of the lock bottom component and the lock rod.

[0007] The purpose of this technical solution is achieved in this way:

[0008] A central lock support structure comprises: a lock cap; a support rod assembly, the upper end of which is hinged on the lock cap; a lock bottom assembly, which is hinged on the lower end of the support rod assembly; and a lock rod, the upper end of which is arranged in the lock cap and the lower end of which is movably connected to the lock bottom assembly; it is characterized in that: a telescopic assembly is movably provided on the lock rod, the lower end of the telescopic assembly is connected to the lock bottom assembly, and the lock rod and the telescopic assembly are coaxially arranged; when the support rod assembly is in a retracted state, the telescopic assembly extends the lock rod; when the support rod assembly is in an open state, the telescopic assembly retracts the lock cover, and the lower end of the lock rod is engaged with the lock bottom assembly.

[0009] Preferably, the telescopic assembly includes at least one telescopic rod, the upper end of which is movably engaged in the locking rod.

[0010] Preferably, a snap-fitting hole is provided on the side wall at the lower end of the lock rod; the lock bottom assembly comprises: a lock base; a lock bottom cover, which is snapped onto the lock base; a movable part, which is movably arranged in a movable groove of the lock base, and a protrusion is protruding from the rear end; and a return spring, the front end of which is sleeved outside the protrusion and the rear end abuts against the inner side wall of the lock base, so that the movable part always has a tendency to move outward; wherein, a movable hole is provided in the middle of the movable part, and a snap-fitting part is protruding from the inner side wall of the movable hole; when the support rod assembly is unfolded, the lower end of the lock rod enters the movable hole, and at the same time, the snap-fitting part is placed in the snap-fitting hole.

[0011] Preferably, the clamping portion has a guiding slope.

[0012] Preferably, a limiting portion is provided in the middle of the lock base, the limiting portion is located in the movable hole, the clamping portion movably abuts against the limiting portion, and the limiting portion is used to prevent the movable portion from moving.

[0013] Preferably, a connecting portion is provided on the limiting portion, and the lower end of the telescopic rod is connected to the connecting portion.

[0014] Preferably, a plug is provided at the lower end of the locking rod, and a flared opening is provided at the upper end of the telescopic rod, and the flared opening is movably connected to the plug.

[0015] Preferably, when the telescopic assembly includes a plurality of telescopic rods, the lower ends of the telescopic rods have a constriction, and the flared end of the upper end of the lower telescopic rod is movably engaged with the constriction of the lower end of the upper telescopic rod.

[0016] A parasol comprises: a center lock support structure; and a parasol surface, which is covered on the center lock support structure.

[0017] Compared with the existing technology, this technical solution has the following outstanding and beneficial technical effects:

[0018] 1. The telescopic assembly designed in this technical solution can be extended and retracted inside the inner cavity of the locking rod. When the parasol is folded, the locking rod and the lock bottom assembly are far apart. At this time, the locking rod is connected to the lock bottom assembly through the telescopic assembly. When the parasol is opened, the lock bottom assembly will gradually move upward. Since the locking rod and the telescopic assembly are coaxially designed, the telescopic assembly will guide the lock bottom assembly to align and connect with the lower end of the locking rod. There is no need for personnel to observe the docking position, making the opening process of the parasol smoother.

[0019] 2. The locking rod and the lock base designed in this technical solution are movably connected. When the parasol is unfolded, the lock base moves upward and approaches the locking rod and is engaged with the locking rod. The guiding inclined surface of the movable part will touch the bottom of the locking rod and make the engaging part of the movable part automatically fall into the engaging hole of the locking rod. When the parasol is folded, you only need to manually press the movable part to make the engaging part disengage from the engaging hole. The lock bottom assembly has a simple structure and strong practicality. The parasol can be easily and quickly installed and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the technical solution.

[0021] Figure 2 It is a structural diagram of the connection between the locking cap and the support rod assembly.

[0022] Figure 3 It is a structural diagram of the connection between the lock bottom assembly and the support rod assembly.

[0023] Figure 4 This is an exploded view of the telescopic rod and lock bottom assembly.

[0024] Figure 5 It is a schematic diagram of the internal structure of the telescopic rod and the lock bottom assembly.

[0025] Figure 6 A schematic diagram of the internal structure of the lock rod and lock base assembly.

[0026] Figure 7 This is a cross-sectional view of the lock rod and lock base assembly when they are engaged.

[0027] Figure numerals: 1. Lock cap; 2. Support rod assembly; 3. Lock rod; 4. Lock bottom assembly; 5. Telescopic assembly; 6. Telescopic rod; 7. Snap-fit ​​hole; 8. Lock base; 9. Lock bottom cover; 10. Movable part; 11. Movable groove; 12. Bump; 13. Return spring; 14. Movable hole; 15. Snap-fit ​​part; 16. Guide slope; 17. Limiting part; 18. Connecting part; 19. Plug; 20. Expanding; 21. Shrinking. DETAILED DESCRIPTION

[0028] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-3As shown, a central lock support structure includes a lock cap 1, a support rod assembly 2, a lock rod 3 and a lock bottom assembly 4. The support rod assembly 2 includes an upper support rod and a lower support rod. The upper end of the upper support rod is hinged in the installation position 1 of the lock cap 1, the upper end of the lower support rod is hinged in the middle of the upper support rod, and the lower end is hinged in the installation position 2 of the lock bottom assembly 4. The upper end of the lock rod 3 is connected to the middle of the lock cap 1. When the support rod assembly 2 is retracted, the lock rod 3 is far away from the lock bottom assembly 4. When the support rod assembly 2 is unfolded, the lower end of the lock rod 3 is engaged with the lock bottom assembly 4 to maintain the unfolded state of the support rod assembly 2.

[0030] Further, such as Figure 1-7 As shown, in order to ensure that the lock bottom assembly 4 can be accurately aligned with the lock rod 3 during the upward movement, a telescopic assembly 5 is movably set in the inner cavity of the lock rod 3. The upper end of the telescopic assembly 5 is movably engaged in the inner cavity of the lock rod 3, and the lower end is detachably connected to the lock bottom assembly 4. The lock rod 3 and the telescopic assembly 5 are coaxially arranged. When the support rod assembly 2 is retracted, the telescopic assembly 5 can be connected to the lock bottom assembly 4 or placed in the lock rod 3. The telescopic assembly 5 is used to accurately guide the lock bottom assembly 4 to the position of the lock rod 3 so that the two can be smoothly engaged.

[0031] Specifically, when the support rod assembly 2 is retracted, the telescopic assembly 5 extends downward to the lock bottom assembly 4 and is connected to the lock bottom assembly 4. When the support rod assembly 2 is gradually opened, the lock bottom assembly 4 moves upward. At this time, the telescopic assembly 5 is compressed by the lock bottom assembly 4 and retracted into the inner cavity of the lock rod 3. When the support rod assembly 2 is unfolded, the telescopic assembly 5 is completely retracted into the lock rod 3, and the lock rod 3 is engaged with the lock bottom assembly 4 to maintain the unfolding of the support rod assembly 2.

[0032] Furthermore, the telescopic assembly 5 includes at least one telescopic rod 6. The telescopic assembly 5 can be one telescopic rod 6 or multiple telescopic rods 6 connected to each other. When the telescopic assembly 5 includes multiple telescopic rods 6, the lower telescopic rod 6 is movably placed in the upper telescopic rod 6, the uppermost telescopic rod 6 is connected to the lock rod 3, and the lowermost telescopic rod 6 is connected to the lock bottom assembly 4.

[0033] like Figure 3-7As shown, a snap-fit ​​hole 7 is provided on the side wall at the lower end of the locking rod 3, and the lock bottom assembly 4 includes a lock base 8, a bottom cover, a movable part 10 and a return spring 13. The lock base 8 has a movable groove 11 inside, and the lock bottom cover 9 is fastened to the lock base 8 by screws. The lower support rod is hinged on the lock bottom cover 9. The movable part 10 is movably arranged in the movable groove 11 of the lock base 8 and is limited by the lock base 8 and the lock bottom cover 9. The rear end of the movable part 10 is protruding with a protrusion 12, and the front end of the return spring 13 is sleeved outside the protrusion 12, and the rear end abuts against the inner side wall of the lock base 8, so that the movable part 10 always has an outward movement tendency. The person can manually press the front end of the movable part 10 to move it. A limiting part 17 is provided in the middle of the lock base 8, and the limiting part 17 is located in the movable hole 14 of the movable part 10. The snap-fit ​​part 15 movably abuts against the limiting part 17, and the limiting part 17 is used to prevent the movable part 10 from moving outward.

[0034] Furthermore, a movable hole 14 is opened in the middle of the movable part 10. When the lock bottom assembly 4 moves, the locking rod 3 and the telescopic rod 6 are placed in the movable hole 14. A clamping portion 15 is protruded on the inner side wall of the movable hole 14. The clamping portion 15 is used to cooperate with the locking rod 3 for locking. When the support rod assembly 2 is unfolded, the lower end of the locking rod 3 enters the movable hole 14. At the same time, the clamping portion 15 is placed in the clamping hole 7. The surface of the clamping portion 15 has a guiding slope 16. When the guiding slope 16 contacts the locking rod 3, the movable block can be pushed to realize that the clamping block enters the clamping groove.

[0035] like Figure 4 As shown, a connecting portion 18 is provided on the limiting portion 17 , and the lower end of the telescopic rod 6 is connected to the connecting portion 18 . The connecting portion 18 may be cylindrical, and the cylindrical connecting portion 18 fits into the channel inside the telescopic rod 6 .

[0036] like Figure 7 As shown, a plug 19 is provided at the lower end of the locking rod 3, and the plug 19 is fixed in the locking rod 3 by screws. The upper end of the telescopic rod 6 has a flared opening 20. When the telescopic rod 6 moves downward, the flared opening 20 is clamped on the plug 19 to prevent the telescopic rod 6 from sliding out of the locking rod 3.

[0037] Furthermore, when the telescopic assembly 5 includes several telescopic rods 6, the lower end of the telescopic rod 6 has a constriction 21, and the expansion 20 at the upper end of the lower telescopic rod 6 is movably connected to the constriction 21 at the lower end of the upper telescopic rod 6 to prevent adjacent telescopic rods 6 from detaching from each other.

[0038] A parasol comprises a central lock supporting structure and a parasol surface, wherein the parasol surface is covered on the central lock supporting structure.

[0039] The basic principle and main features of the technical solution and the advantages of the technical solution are shown and described above. Those skilled in the art should understand that the technical solution is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, various changes and improvements can be made to the technical solution, and these changes and improvements all fall within the scope of the claimed technical solution. The scope of protection of the technical solution is defined by the appended claims and their equivalents.

Claims

1. A center lock support structure comprising: Lock cap (1); A support rod assembly (2), the upper end of which is hinged to the locking cap (1); A bottom lock assembly (4) hinged to the lower end of the support rod assembly (2); and A locking rod (3), the upper end of which is disposed in the locking cap (1) and the lower end of which is movably connected to the locking bottom assembly (4); Its characteristics are: A telescopic assembly (5) is movably provided on the locking rod (3), the lower end of the telescopic assembly (5) is connected to the lock bottom assembly (4), and the locking rod (3) and the telescopic assembly (5) are coaxially arranged; When the support rod assembly (2) is in a retracted state, the telescopic assembly (5) extends the locking rod (3); When the support rod assembly (2) is in an open state, the telescopic assembly (5) retracts the lock cover, and the lower end of the lock rod (3) is engaged with the lock bottom assembly (4).

2. A center lock support structure according to claim 1, characterized in that: The telescopic assembly (5) comprises at least one telescopic rod (6), the upper end of which is movably clamped in the locking rod (3).

3. A center lock support structure according to claim 2, characterized in that: A clamping hole (7) is provided on the side wall of the lower end of the locking rod (3); The bottom lock assembly (4) comprises: Lock base (8); A lock bottom cover (9) which is buckled onto the lock base (8); A movable portion (10) is movably arranged in a movable groove (11) of the lock base (8), and a protruding block (12) is provided at the rear end; and A return spring (13), the front end of which is sleeved outside the protrusion (12) and the rear end of which abuts against the inner wall of the lock base (8), is used to ensure that the movable part (10) always has an outward movement tendency; A movable hole (14) is provided in the middle of the movable portion (10), and a clamping portion (15) is protruded from the inner side wall of the movable hole (14); When the support rod assembly (2) is unfolded, the lower end of the locking rod (3) enters the movable hole (14), and at the same time, the clamping portion (15) is placed in the clamping hole (7).

4. A center lock support structure according to claim 3, characterized in that: The clamping portion (15) has a guiding slope (16).

5. The center lock support structure according to claim 4, characterized in that: A limiting portion (17) is provided in the middle of the lock base (8), the limiting portion (17) is located in the movable hole (14), the clamping portion (15) movably abuts against the limiting portion (17), and the limiting portion (17) is used to block the movable portion (10) from moving.

6. The center lock support structure according to claim 5, characterized in that: A connecting portion (18) is provided on the limiting portion (17), and the lower end of the telescopic rod (6) is connected to the connecting portion (18).

7. The center lock support structure according to claim 6, characterized in that: The lower end of the locking rod (3) is provided with a plug (19), and the upper end of the telescopic rod (6) has a flared opening (20), and the flared opening (20) is movably connected to the plug (19).

8. The center lock support structure according to claim 7, characterized in that: When the telescopic assembly (5) includes a plurality of telescopic rods (6), the lower ends of the telescopic rods (6) have constrictions (21), and the flared opening (20) at the upper end of the lower telescopic rod (6) is movably engaged with the constriction (21) at the lower end of the upper telescopic rod (6).

9. A parasol, characterized in that: include: The center lock support structure according to any one of claims 1 to 8; as well as The parasol surface is covered on the central lock supporting structure.

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