Umbrella rib folding and unfolding mechanism of outdoor sunshade

Abstract

The utility model provides an umbrella rib folding and unfolding mechanism of an outdoor sunshade umbrella, and belongs to the technical field of sunshade umbrellas. The technical problem that an existing sunshade needs to be manually and mechanically adjusted to be unfolded and folded is solved. According to the umbrella rib folding and unfolding mechanism of the outdoor sunshade, a screw rod speed reducing motor is fixedly connected to the lower side of a mounting base, a screw rod is in threaded connection with a nut support, the upper end of an umbrella rib is hinged to the mounting base, the nut support is provided with a connecting part corresponding to the umbrella rib, and a connecting rod is connected between the connecting part and the upper end of the umbrella rib; the two ends of the connecting rod are rotationally connected with the connecting part and the upper ends of the umbrella ribs respectively, the umbrella ribs are unfolded when the nut support moves downwards along the screw rod, and the umbrella ribs are folded when the nut support moves upwards along the screw rod. The umbrella ribs are driven to be unfolded or folded through the screw gear motor, the nut support and the connecting rod, a crank does not need to be manually rotated, automatic unfolding and folding of the umbrella ribs are achieved, the structure is simple, operation is convenient, and stability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sunshade umbrellas, in particular to an umbrella rib folding and unfolding mechanism for an outdoor sunshade umbrella. Background Art

[0002] Outdoor parasols are a common tool for sunshade in various leisure places, cafes, villa gardens, terraces, tea houses, lawns, outdoors, beaches, bar streets, commercial streets, gated properties, lake fishing, friends gatherings and barbecues, etc. It has good sun protection and shading effect, and provides a comfortable cool space for people to carry out outdoor activities.

[0003] Existing outdoor parasols usually include a base, an umbrella pole, an umbrella rib and an umbrella cover. The lower end of the umbrella pole is fixedly connected to the base, and the upper end is connected to the umbrella rib. The umbrella cover 3 is connected to the umbrella rib and can be expanded or folded by the umbrella rib. At present, the umbrella covers of most outdoor parasols on the market are controlled by winding or releasing the rope through a crank structure arranged on the umbrella pole to expand or fold the umbrella cover.

[0004] How to provide an umbrella rib retracting and unfolding mechanism that can automatically unfold or fold the umbrella surface has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an umbrella rib folding and unfolding mechanism which can automatically unfold or fold the umbrella surface.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is connected to said linking rod by a bolt. said bolt has a round shank to contact with said linking rod.

[0008] The umbrella rib folding and unfolding mechanism drives the umbrella ribs to be unfolded or folded through a screw reduction motor, a nut bracket and a connecting rod, and does not require manual rotation of a crank, thereby realizing automatic unfolding and folding of the umbrella ribs. The structure is simple, the operation is convenient and the stability is high.

[0009] In the above-mentioned umbrella rib folding and unfolding mechanism of an outdoor parasol, a hinged protrusion is fixedly connected to the outer wall of the mounting seat, and the hinged protrusion is symmetrically installed on both sides of each mounting groove or mounting hole. The umbrella ribs are connected by simultaneously passing through the umbrella ribs and the corresponding two hinged protrusions.

[0010] The hinged protrusion protruding from the outer wall of the mounting seat can not only be hinged to the umbrella ribs, but also enhance the structural strength of the mounting seat. At the same time, the hinged protrusion protruding from the outer wall of the mounting seat can also make the lower end of the umbrella ribs closer to the umbrella pole when the umbrella ribs are folded, thereby avoiding the interference of the mounting seat with the folding angle of the umbrella ribs, which is beneficial to increasing the expansion and folding range of the umbrella rib folding and unfolding mechanism.

[0011] In the above-mentioned umbrella rib folding and unfolding mechanism for an outdoor parasol, a threaded hole threadedly connected to a screw rod is provided in the middle portion of the nut bracket, an inner connecting groove penetrating the screw rod axially is provided on the connecting portion, an inner connecting hole perpendicular to the inner connecting groove is provided on the connecting portion, the lower end of the connecting rod extends into the inner connecting groove and is rotatably connected to the connecting portion via an inner rotating shaft, an outer connecting groove penetrating the screw rod vertically is provided at the inner end of the umbrella rib, an outer connecting hole perpendicular to the outer connecting groove is provided at the inner end of the umbrella rib, the upper end of the connecting rod extends into the outer connecting groove and is rotatably connected to the umbrella rib via an outer rotating shaft.

[0012] The design of the inner connecting groove and the outer connecting groove makes the connecting part and the inner end of the ribs have better symmetry, avoiding bending and deformation due to unilateral force on the connecting part or the ribs, and also avoiding bending and deformation of the connecting rod due to horizontal force, which is beneficial to improving the stability of the umbrella rib folding and unfolding mechanism during operation and increasing its service life.

[0013] In the above-mentioned umbrella rib folding and unfolding mechanism of an outdoor parasol, the mounting seat includes a supporting portion, an inclined portion and a mounting portion which are arranged in sequence from bottom to top, the supporting portion is in a circular ring shape and can be inserted into the upper end of the tubular umbrella pole, the upper end of the supporting portion is fixedly connected to a supporting plate, the through hole is arranged on the supporting plate, the screw reduction motor extends into the supporting portion and is fixedly connected to the supporting plate, the inclined portion is in a truncated cone shape which is larger at the top and smaller at the bottom, and the mounting groove or mounting hole is arranged in a circular array on the mounting portion with the central axis of the mounting seat as the center.

[0014] The support part can be inserted into the umbrella pole to make the connection between the mounting seat and the umbrella pole more stable. The design of the inclined part and the mounting part can make the diameter of the mounting part larger than the diameter of the support part, so that there is enough space in the mounting part to accommodate the nut bracket, the connecting rod and the inner end of the umbrella rib. At the same time, it can also avoid the interference of the support part or the umbrella pole with the folding of the umbrella ribs when the umbrella ribs are folded, which is beneficial to increasing the expansion and folding range of the umbrella rib folding and unfolding mechanism.

[0015] In the above-mentioned umbrella rib folding and unfolding mechanism for an outdoor parasol, a tension spring for pulling the connecting rod downward is connected between each connecting rod and the inclined portion.

[0016] The design of the tension spring can reduce the load of the screw reducer motor, so that the screw reducer motor can better unfold or fold the umbrella ribs, and can play a more stable supporting role when the umbrella ribs are unfolded.

[0017] In the above-mentioned umbrella rib folding and unfolding mechanism for an outdoor parasol, the upper end of the mounting seat is open, a top cover is detachably fixed to the upper side of the mounting seat, and the top cover is provided with a clearance hole that cooperates with the umbrella ribs.

[0018] The design of the clearance holes on the top cover can prevent the ribs from touching the top cover when they are unfolded or folded, thereby affecting the normal unfolding or folding of the ribs and improving stability.

[0019] In the above-mentioned umbrella rib folding and unfolding mechanism of an outdoor parasol, a downwardly protruding positioning block is formed in the middle of the lower side of the top cover, and a bearing is fixedly connected to the lower end of the positioning block, and the inner ring of the bearing is fixedly connected to the upper end of the screw.

[0020] The positioning protrusion cooperates with the bearing to support the upper end of the screw rod, thereby preventing the upper end of the screw rod from being suspended in the air and swinging too much, thereby affecting the stability of the umbrella ribs when they are unfolded or folded.

[0021] In the above-mentioned umbrella rib folding and unfolding mechanism of an outdoor parasol, the umbrella ribs include a connecting head and a main body, the main body is a hollow structure, the outer end of the connecting head is fixedly connected to the main body, the middle part of the connecting head is hinged to the mounting seat, the inner end of the connecting head is located inside the mounting seat, and the inner end of the connecting head is rotatably connected to the connecting rod.

[0022] The hollow main body can reduce the overall weight of the umbrella ribs, reduce the load of the screw reduction motor, and is beneficial to improving the stability and service life of the umbrella rib retraction and extension mechanism.

[0023] In the above-mentioned rib folding and unfolding mechanism of an outdoor parasol, a transverse reinforcing plate is provided in the middle of the main body, and the reinforcing plate divides the main body into an upper cavity and a lower cavity. The lower side wall of the lower cavity is provided with a groove that penetrates the main body along the length direction.

[0024] The design of the reinforcement plate can make the structural strength of the main body higher, so that it can better support the umbrella surface; at the same time, the slotted design can not only reduce the overall weight of the main body, but also can be used to install decorations such as light strips.

[0025] In the above-mentioned umbrella rib folding and unfolding mechanism for an outdoor parasol, there are multiple umbrella ribs and they are arranged in a ring array with the central axis of the mounting seat as the center.

[0026] The ribs are arranged in a circular array to make the force on the mounting seat and the nut bracket more uniform, and the safety and stability are higher.

[0027] Compared with the prior art, the technical effects of the utility model are:

[0028] The utility model drives the umbrella ribs to be unfolded or folded through a screw reduction motor, a nut bracket and a connecting rod, and does not require manual rotation of a crank, thereby realizing automatic unfolding and folding of the umbrella ribs. The utility model has a simple structure, is easy to operate and has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an outdoor parasol of the utility model.

[0030] Figure 2 It is an overall sectional view of the utility model.

[0031] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0032] Figure 4 It is a schematic diagram of the structure inside the mounting seat of the utility model.

[0033] Figure 5 It is a structural schematic diagram of the mounting seat of the utility model.

[0034] Figure 6 It is a structural schematic diagram of the nut bracket of the utility model.

[0035] Figure 7 It is a structural schematic diagram of the top cover of the utility model.

[0036] Figure 8 It is a structural schematic diagram of the inner end of the umbrella rib of the utility model.

[0037] Fig. 9 It is a structural schematic diagram of the outer end of the umbrella rib of the utility model.

[0038] In the figure, 1, mounting seat; 11, supporting part; 111, supporting plate; 112, through hole; 12, inclined part; 13, mounting part; 131, mounting groove; 132, hinge protrusion; 133, hinge shaft; 14, tension spring; 2, umbrella rib; 21, connecting head; 211, external connecting groove; 212, external connecting hole; 213, external rotating shaft; 22, main body; 221, reinforcing plate; 222, slot; 3, nut bracket; 31, connecting part; 311, internal connecting groove; 312, internal connecting hole; 313, internal rotating shaft; 32, threaded hole; 4, connecting rod; 5, screw reduction motor; 51, screw; 6, top cover; 61, clearance hole; 62, positioning protrusion; 63, bearing; 7, umbrella pole. DETAILED DESCRIPTION

[0039] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0040] The umbrella rib folding and unfolding mechanism of the outdoor parasol comprises a mounting seat 1 that can be fixedly connected to an umbrella pole 7, a plurality of umbrella ribs 2, a screw reduction motor 5, a nut bracket 3 and a connecting rod 4. The screw reduction motor 5 is fixedly connected to the lower side of the mounting seat 1. A through hole 112 is provided at the bottom of the mounting seat 1 for a screw 51 of the screw reduction motor 5 to pass through. The nut bracket 3 is threadedly connected to the screw 51. The outer wall of the mounting seat 1 is provided with mounting grooves 131 or mounting holes that match the umbrella ribs 2 at intervals along the circumferential direction. The upper end of the rib 2 passes through the mounting groove 131 or the mounting hole and extends into the interior of the mounting seat 1, and the upper end of the rib 2 is hinged to the mounting seat 1. The nut bracket 3 is provided with a connecting portion 31 corresponding to the rib 2, and a connecting rod 4 is connected between the connecting portion 31 and the upper end of the rib 2. The two ends of the connecting rod 4 are rotatably connected to the connecting portion 31 and the upper end of the rib 2 respectively. When the nut bracket 3 moves downward along the screw rod 51, the rib 2 is unfolded, and when the nut bracket 3 moves upward along the screw rod 51, the rib 2 is folded. The rib folding and unfolding mechanism drives the rib 2 to unfold or fold through the screw reduction motor 5, the nut bracket 3 and the connecting rod 4, and there is no need to manually rotate the crank, so that the rib 2 can be automatically unfolded and folded. It has a simple structure, is easy to operate, and has high stability.

[0041] like Figure 4 and Figure 5 As shown, a hinge protrusion 132 is fixedly connected to the outer wall of the mounting seat 1, and the hinge protrusion 132 is symmetrically installed on both sides of each mounting groove 131 or mounting hole, and the rib 2 is connected by simultaneously penetrating the rib 2 and the corresponding two hinge protrusions 132. The hinge protrusion 132 protruding from the outer wall of the mounting seat 1 can not only be hinged with the rib 2, but also enhance the structural strength of the mounting seat 1. At the same time, the hinge protrusion 132 protruding from the outer wall of the mounting seat 1 can also make the lower end of the rib 2 closer to the umbrella rod 7 when the rib 2 is folded, so as to avoid the interference of the mounting seat 1 on the folding angle of the rib 2, which is conducive to improving the expansion and folding range of the rib folding and unfolding mechanism of the present umbrella.

[0042] like Figure 3 , Figure 4 , Figure 6 and Figure 8As shown, a threaded hole 32 threadedly connected to the screw rod 51 is provided in the middle part of the nut bracket 3, an inner connecting groove 311 is provided on the connecting part 31 for axially penetrating the screw rod 51, an inner connecting hole 312 perpendicular to the inner connecting groove 311 is provided on the connecting part 31, the lower end of the connecting rod 4 extends into the inner connecting groove 311 and is rotatably connected to the connecting part 31 through an inner rotating shaft 313, an outer connecting groove 211 is provided at the inner end of the rib 2 for vertically penetrating the rib 2, an outer connecting hole 212 perpendicular to the outer connecting groove 211 is provided at the inner end of the rib 2, the upper end of the connecting rod 4 extends into the outer connecting groove 211 and is rotatably connected to the rib 2 through the outer rotating shaft 213. The design of the inner connecting groove 311 and the outer connecting groove 211 makes the inner ends of the connecting portion 31 and the ribs 2 have better symmetry, thereby preventing the connecting portion 31 or the ribs 2 from being bent and deformed due to unilateral force, and also preventing the connecting rod 4 from being bent and deformed due to horizontal force, which is beneficial to improving the stability of the umbrella rib folding and unfolding mechanism during operation and increasing its service life.

[0043] like Figure 5 The mounting seat 1 includes a supporting portion 11, an inclined portion 12 and a mounting portion 13 which are arranged in sequence from bottom to top. The supporting portion 11 is in a circular ring shape and can be inserted into the upper end of the tubular umbrella pole 7. The upper end of the supporting portion 11 is fixedly connected with a supporting plate 111. A through hole 112 is provided on the supporting plate 111. The screw reduction motor 5 extends into the supporting portion 11 and is fixedly connected to the supporting plate 111. The inclined portion 12 is in a truncated cone shape with a larger upper portion and a smaller lower portion. The mounting groove 131 or the mounting hole is arranged in a circular array on the mounting portion 13 with the central axis of the mounting seat 1 as the center. The support portion 11 can be inserted into the umbrella pole 7 to make the connection between the mounting seat 1 and the umbrella pole 7 more stable. The design of the inclined portion 12 and the mounting portion 13 can make the diameter of the mounting portion 13 larger than the diameter of the support portion 11, so that there is enough space in the mounting portion 13 to accommodate the nut bracket 3, the connecting rod 4 and the inner end of the umbrella rib 2. At the same time, it can also avoid the interference of the support portion 11 or the umbrella pole 7 with the folding of the umbrella rib 2 when the umbrella rib 2 is folded, which is beneficial to increase the expansion and folding range of the umbrella rib folding and unfolding mechanism.

[0044] like Figure 3 As shown, a tension spring 14 is connected between each connecting rod 4 and the inclined portion 12 to pull the connecting rod 4 downward. The design of the tension spring 14 can reduce the load of the screw reducer motor 5, so that the screw reducer motor 5 can better unfold or fold the umbrella rib 2, and the umbrella rib 2 can play a more stable supporting role when unfolding.

[0045] like Figure 7As shown, the upper end of the mounting seat 1 is open, and a top cover 6 is detachably fixed on the upper side of the mounting seat 1, and a clearance hole 61 is provided on the top cover 6 to cooperate with the rib 2; a positioning convex block 62 protruding downward is formed in the middle of the lower side of the top cover 6, and a bearing 63 is fixedly connected to the lower end of the positioning convex block 62, and the inner ring of the bearing 63 is fixedly connected to the upper end of the screw rod 51. The design of the clearance hole 61 on the top cover 6 can prevent the rib 2 from touching the top cover 6 when it is unfolded or folded, which affects the normal unfolding or folding of the rib 2, and improves stability; the positioning convex block 62 cooperates with the bearing 63 to support the upper end of the screw rod 51, and prevents the upper end of the screw rod 51 from being suspended in the air and swinging too much, which affects the stability of the rib 2 when it is unfolded or folded.

[0046] like Figure 8 and Fig. 9 As shown, the rib 2 includes a connector 21 and a main body 22. The main body 22 is a hollow structure. The outer end of the connector 21 is fixedly connected to the main body 22. The middle of the connector 21 is hinged to the mounting seat 1. The inner end of the connector 21 is located inside the mounting seat 1. The inner end of the connector 21 is rotatably connected to the connecting rod 4. A transverse reinforcing plate 221 is provided in the middle of the main body 22. The reinforcing plate 221 divides the main body 22 into an upper cavity and a lower cavity. The lower side wall of the lower cavity is provided with a slot 222 that penetrates the main body 22 along the length direction. The hollow main body 22 can reduce the overall weight of the rib 2, reduce the load of the screw reducer motor 5, and is conducive to improving the stability and service life of the rib retracting and unfolding mechanism. The design of the reinforcing plate 221 can make the structural strength of the main body 22 higher, so that it can better support the umbrella surface. At the same time, the design of the slot 222 can not only reduce the overall weight of the main body 22, but also be used to install decorative objects such as light strips.

[0047] Furthermore, there are multiple ribs 2 and they are arranged in a circular array with the central axis of the mounting seat 1 as the center. The ribs 2 are arranged in a circular array so that the mounting seat 1 and the nut bracket 3 are subjected to more uniform force, and the safety and stability are higher.

[0048] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. A rib folding and unfolding mechanism for an outdoor parasol, comprising a mounting seat (1) fixedly connected to an umbrella pole (7) and a plurality of ribs (2), characterized in that: The invention comprises a screw reduction motor (5), a nut bracket (3) and a connecting rod (4), wherein the screw reduction motor (5) is fixedly connected to the lower side of a mounting seat (1), the bottom of the mounting seat (1) is provided with a through hole (112) for a screw (51) of the screw reduction motor (5) to pass through, the nut bracket (3) is threadedly connected to the screw (51), and mounting grooves (131) or mounting holes matching with the umbrella rib (2) are provided at intervals along the circumferential direction on the outer wall of the mounting seat (1), and the upper end of the umbrella rib (2) extends through the mounting groove (131) or the mounting hole. The nut bracket (3) is inserted into the interior of the mounting seat (1), and the upper end of the rib (2) is hinged to the mounting seat (1); a connecting portion (31) corresponding to the rib (2) is provided on the nut bracket (3); a connecting rod (4) is connected between the connecting portion (31) and the upper end of the rib (2); two ends of the connecting rod (4) are rotatably connected to the connecting portion (31) and the upper end of the rib (2); when the nut bracket (3) moves downward along the screw rod (51), the rib (2) is unfolded; when the nut bracket (3) moves upward along the screw rod (51), the rib (2) is folded.

2. The rib folding and unfolding mechanism of an outdoor parasol according to claim 1, characterized in that: A hinged protrusion (132) is fixedly connected to the outer wall of the mounting seat (1), and the hinged protrusion (132) is symmetrically mounted on both sides of each mounting groove (131) or mounting hole, and the umbrella rib (2) is connected by simultaneously penetrating the umbrella rib (2) and the corresponding two hinged protrusions (132).

3. The rib folding and unfolding mechanism of an outdoor parasol according to claim 1, characterized in that: A threaded hole (32) threadedly connected to the screw rod (51) is provided at the middle of the nut bracket (3); an inner connecting groove (311) penetrating the screw rod (51) along the axial direction is provided on the connecting portion (31); an inner connecting hole (312) perpendicular to the inner connecting groove (311) is provided on the connecting portion (31); the lower end of the connecting rod (4) extends into the inner connecting groove (311) and is rotatably connected to the connecting portion (31) via an inner rotating shaft (313); an outer connecting groove (211) penetrating vertically is provided at the inner end of the umbrella rib (2); an outer connecting hole (212) perpendicular to the outer connecting groove (211) is provided at the inner end of the umbrella rib (2); the upper end of the connecting rod (4) extends into the outer connecting groove (211) and is rotatably connected to the umbrella rib (2) via an outer rotating shaft (213).

4. The rib folding and unfolding mechanism of an outdoor parasol according to claim 1, characterized in that: The mounting seat (1) comprises a supporting portion (11), an inclined portion (12) and a mounting portion (13) which are arranged in sequence from bottom to top; the supporting portion (11) is annular and can be inserted into the upper end of a tubular umbrella pole (7); the upper end of the supporting portion (11) is fixedly connected to a supporting plate (111); the through hole (112) is arranged on the supporting plate (111); the screw reduction motor (5) extends into the supporting portion (11) and is fixedly connected to the supporting plate (111); the inclined portion (12) is truncated in a shape of a larger top and a smaller bottom; and the mounting groove (131) or the mounting hole is arranged on the mounting portion (13) in a circular array with the central axis of the mounting seat (1) as the center.

5. The rib folding and unfolding mechanism of an outdoor parasol according to claim 1, characterized in that: A tension spring (14) is connected between each connecting rod (4) and the inclined portion (12) for pulling the connecting rod (4) downward.

6. The rib folding and unfolding mechanism of an outdoor parasol according to claim 1, characterized in that: The upper end of the mounting seat (1) is open, and a top cover (6) is detachably fixed on the upper side of the mounting seat (1), wherein the top cover (6) is provided with a clearance hole (61) that cooperates with the umbrella rib (2).

7. The rib folding and unfolding mechanism of an outdoor parasol according to claim 6, characterized in that: A downwardly protruding positioning lug (62) is formed in the middle of the lower side of the top cover (6), the lower end of the positioning lug (62) is fixedly connected to a bearing (63), and the inner ring of the bearing (63) is fixedly connected to the upper end of the screw rod (51).

8. The rib folding and unfolding mechanism of an outdoor parasol according to any one of claims 1 to 7, characterized in that: The umbrella rib (2) comprises a connecting head (21) and a main body (22); the outer end of the connecting head (21) is fixedly connected to the main body (22); the middle part of the connecting head (21) is hinged to the mounting seat (1); the inner end of the connecting head (21) is located inside the mounting seat (1); and the inner end of the connecting head (21) is rotatably connected to the connecting rod (4).

9. The rib folding and unfolding mechanism of an outdoor parasol according to claim 8, characterized in that: The main body (22) is of a hollow structure, a transverse reinforcing plate (221) is provided in the middle of the main body (22), the reinforcing plate (221) divides the main body (22) into an upper cavity and a lower cavity, and a groove (222) is provided on the lower side wall of the lower cavity, which penetrates the main body (22) along the length direction.

10. The rib folding and unfolding mechanism of an outdoor parasol according to any one of claims 1 to 7, characterized in that: The umbrella ribs (2) are multiple and are arranged in a ring array with the central axis of the mounting seat (1) as the center.

Images