Crank arm assembly

Abstract

The utility model discloses a crank arm assembly which comprises a first arm rod, a second arm rod and a tensioning piece, the first arm rod and the second arm rod are connected, and a hinged support is arranged at the connecting end of the first arm rod and the second arm rod. A wire sleeve is arranged at the hinged center of the two hinged supports in a wrapping mode. At least one hinged support is internally provided with a communicating opening communicating with the hinged center, and the tensioning piece penetrates through the communicating opening and is wound around the wire sleeve. On the premise that original basic functions are guaranteed, it can be guaranteed that all the pull-in pieces are hidden, the tensioning pieces can be protected to the maximum extent, and the situation that the tensioning pieces rust or are damaged is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a curved arm canopy field especially to a curved arm assembly. BACKGROUND

[0002] The product types of sunshade canopy include curved arm sunshade canopy, the rear end of curved arm is provided with cloth winding drum, cloth is fixed at the front end of curved arm, and the cloth is pulled out from the cloth winding drum through the unfolding of curved arm, thereby playing the role of sunshade and rainproof.

[0003] The existing curved arm assembly on the curved arm canopy, as shown in the publication number CN211369303U and CN216276557U, can limit the tensioning piece (tension spring and steel wire rope) for controlling the unfolding of curved arm in the interior of curved arm, but cannot be completely hidden, and there is still a naked condition at the hinge of curved arm, which is still easy to cause rusting or damage. SUMMARY

[0004] Therefore, the curved arm assembly is provided to solve the above technical problems.

[0005] The utility model discloses a technical scheme that solves its technical problem is: a curved arm assembly, including the first arm rod and second arm rod that connect, tensioning piece, the connecting end of first arm rod and second arm rod sets up the hinge seat, the hinge center of two groups hinge seat is covered and is provided with the wire sleeve, at least one hinge seat is equipped with the access port that communicates with the hinge center, and the tensioning piece passes through the access port and is wound to the wire sleeve.

[0006] Further, the hinge seat includes a first hinge seat provided on the first arm rod and a second hinge seat provided on the second arm rod, and the access port is located on the first hinge seat on the first arm rod.

[0007] Further, the first hinge seat includes a first plug sleeve inserted into one end of the first arm rod, a sleeve provided on the other end of the first plug sleeve, and the wire sleeve is arranged in the sleeve, and the outer diameter of the middle part of the wire sleeve is smaller than the inner diameter of the sleeve.

[0008] Further, the second hinge seat includes a second plug sleeve inserted into one end of the second arm rod, and a sleeve ring provided on the other side of the second plug sleeve, and the sleeve ring is provided with two groups and located at the upper and lower ends of the sleeve.

[0009] Further, the tensioning piece includes a tension spring and a steel wire rope, the tension spring is located in the first arm rod and away from one end of the first hinge seat, one end of the steel wire rope is fixed on the tension spring, and the other end is fixed on the wire sleeve.

[0010] In the technical scheme, further, the upper and lower parts of the sleeve are provided with a first step, and the middle part of the sleeve has a diameter larger than that of the upper and lower parts; the middle part of the sleeve is provided with at least one wire slot in a non-communicating horizontal surrounding manner; the middle part of the sleeve and the initial end of the wire slot are provided with a first notch opening into the inside of the sleeve, and a first slot hole opening into the first notch, and a first fastener is arranged to enter the first slot hole into the first notch.

[0011] In the technical scheme, further, the upper and lower parts of the sleeve are provided with a first step, and the middle part of the sleeve has a diameter larger than that of the upper and lower parts; the middle part of the sleeve is provided with at least one wire slot in a non-communicating horizontal surrounding manner; the middle part of the sleeve and the initial end of the wire slot are provided with a first notch opening into the inside of the sleeve, and a first slot hole opening into the first notch, and a first fastener is arranged to enter the first slot hole into the first notch.

[0012] In the technical scheme, further, the upper and lower parts of the sleeve are provided with a first step, and the middle part of the sleeve has a diameter larger than that of the upper and lower parts; the middle part of the sleeve is provided with at least one wire slot in a non-communicating horizontal surrounding manner; the middle part of the sleeve and the initial end of the wire slot are provided with a first notch opening into the inside of the sleeve, and a first slot hole opening into the first notch, and a first fastener is arranged to enter the first slot hole into the first notch.

[0013] In the technical scheme, further, the upper and lower parts of the sleeve are provided with a first step, and the middle part of the sleeve has a diameter larger than that of the upper and lower parts; the middle part of the sleeve is provided with at least one wire slot in a non-communicating horizontal surrounding manner; the middle part of the sleeve and the initial end of the wire slot are provided with a first notch opening into the inside of the sleeve, and a first slot hole opening into the first notch, and a first fastener is arranged to enter the first slot hole into the first notch.

[0014] In the technical scheme, further, the upper and lower parts of the sleeve are provided with a first step, and the middle part of the sleeve has a diameter larger than that of the upper and lower parts; the middle part of the sleeve is provided with at least one wire slot in a non-communicating horizontal surrounding manner; the middle part of the sleeve and the initial end of the wire slot are provided with a first notch opening into the inside of the sleeve, and a first slot hole opening into the first notch, and a first fastener is arranged to enter the first slot hole into the first notch.

[0015] The utility model discloses the beneficial effect is: under the premise of guaranteeing the original basic function, can guarantee the whole hiding of the pull-in spare, can achieve the protection of the pull-in spare to the maximum extent, prevents its rust or the condition of being destroyed. ACCURATE DRAWINGS

[0016] The utility model is further explained in connection with the drawings and examples.

[0017] Figure 1 It is the utility model's curved arm subassembly perspective drawing.

[0018] Figure 2 It is the utility model's curved arm subassembly another angle perspective drawing.

[0019] Figure 3 It is the utility model's curved arm subassembly explosion view.

[0020] Figure 4 It is the utility model's first arm rod perspective drawing. It is the utility model's curved arm subassembly another angle perspective drawing.

[0021] Figure 5 is a second arm pole perspective view of the utility model.

[0022] Figure 6 is a first hinge seat installation wire sleeve perspective view of the utility model.

[0023] Figure 7 is another angle first hinge seat installation wire sleeve perspective view of the utility model.

[0024] Figure 8 is a first hinge seat perspective view of the utility model.

[0025] Figure 9 is another angle first hinge seat perspective view of the utility model.

[0026] Figure 10 is a second hinge seat installation hinge cover perspective view of the utility model.

[0027] Figure 11 is another angle second hinge seat installation hinge cover perspective view of the utility model.

[0028] Figure 12 is a second hinge seat perspective view of the utility model.

[0029] Figure 13 is another angle second hinge seat perspective view of the utility model.

[0030] Figure 14 is a wire sleeve perspective view of the utility model.

[0031] Figure 15 is another angle wire sleeve perspective view of the utility model.

[0032] Figure 16 is a wire sleeve installation steel rope perspective view of the utility model.

[0033] Figure 17 is a first hinge cover perspective view of the utility model.

[0034] Figure 18 is another angle first hinge cover perspective view of the utility model.

[0035] Figure 19 is a second hinge cover perspective view of the utility model.

[0036] Figure 20 is another angle second hinge cover perspective view of the utility model.

[0037] In the figure, 1. first arm rod, 2. second arm rod, 3. tensioning member, 31. tension spring, 32. steel wire, 4. hinge base, 41. first hinge base, 411. access port, 412. first plug sleeve, 413. sleeve, 4131. second step, 42. second hinge base, 421. second plug sleeve, 422. sleeve ring, 4221. third step, 4222. rectangular hole, 5. wire sleeve, 51. first step, 52. wire slot, 53. first slot, 54. first fastener, 6. bearing, 61. fixed bearing, 62. movable bearing, 7. hinge base cover, 71. first hinge base cover, 72. second hinge base cover, 721. through hole, 73. rectangular block, 731. threaded hole, 8. second fastener. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on that a person of ordinary skill in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0039] Reference Figures 1-20 As shown in the figure, a curved arm assembly includes a first arm rod 1 and a second arm rod 2 connected together, a tensioning member 3, and hinge bases 4 provided at the connecting ends of the first arm rod 1 and the second arm rod 2. A wire sleeve 5 is provided at the hinge centers of the two groups of hinge bases 4. At least one of the hinge bases 4 is provided with an access port 411 in communication with the hinge center, and the tensioning member 3 passes through the access port 411 and is wound on the wire sleeve 5.

[0040] The hinge base 4 includes a first hinge base 41 provided at one end of the first arm rod 1 and a second hinge base 42 provided at the second arm rod 2. The first arm rod 1 is a main rod, and the second arm rod 2 is a secondary rod. The tensioning member 3 is installed in the first arm rod 1. By hingedly connecting the first hinge base 41 and the second hinge base 42 together, the second arm rod 2 is made movable on the first arm rod 1. It should be noted that the access port 411 is located on the first hinge base 41 on the first arm rod 1, and the tensioning member 3 enters the wire sleeve 5 at the hinge center through the access port 411.

[0041] The first arm lever 1 is a large arm, and the second arm lever 2 is a small arm, wherein one end of the first arm lever 1 is fixed on a wall seat, one end of the second arm lever 2 is a cloth pulling end, and the tensioning piece 3 can only be arranged in the first arm lever 1.

[0042] Specifically, the first hinge seat 41 and the second hinge seat 42 are inserted on the first arm lever 1 and the second arm lever 2 in a sleeve insertion manner, the first hinge seat 41 includes a first sleeve 412 inserted into one end of the first arm lever 1, the two are connected and fastened by screws, a sleeve 413 is arranged at the other end of the first sleeve 412, the sleeve 413 is located at the middle part in the longitudinal position of the end, at the same time, the middle part of the wire sleeve 5 is arranged in the sleeve 413, the upper and lower ends protrude from the sleeve 413, and in order to ensure that the wire sleeve 5 can rotate in the sleeve 413, the diameter of the middle part of the wire sleeve 5 is slightly smaller than the inner diameter of the sleeve 413.

[0043] Similarly, the second hinge seat 42 includes a second sleeve 421 inserted into one end of the second arm lever 2, and the two are connected and fastened by screws, a sleeve ring 422 is arranged at the other end of the second sleeve 421, the sleeve ring 422 is in a state of being separated up and down in the longitudinal position, and the distance between the two sets of sleeve rings 422 can just accommodate the sleeve 413 to enter.

[0044] In order to ensure that the wire sleeve 5 can be fixed in the sleeve 413 and can rotate in the sleeve 413, the diameter of the middle part of the wire sleeve 5 is greater than the diameter of the upper and lower parts of the wire sleeve 5, so that a first step 51 is formed at the upper and lower parts of the wire sleeve 5, at the same time, a second step 4131 is arranged at the upper and lower parts of the sleeve 413, the first step 51 and the second step 4131 are flush, a bearing 6 is arranged on the first step 51 and the second step 4131, the outer diameter of the bearing 6 is greater than the diameter of the wire sleeve 5, and the outer diameter of the bearing 6 matches the inner diameter of the upper and lower ends of the sleeve 413.

[0045] At the same time, at least one wire groove 52 is arranged at the middle part of the wire sleeve 5, specifically, the number of the wire grooves 52 is two, the wire grooves 52 are horizontally surrounded and in a disconnected state, the wire grooves 52 include an initial end and a terminal end, a first slot 53 opening into the inside of the wire sleeve 5 is arranged at the initial end of the wire groove 52, a first slot hole 54 opening into the first slot 53 is arranged at the position close to the terminal end, the first slot hole 54 is in an inclined shape, and a first fastener 55 is arranged from the first slot hole 54 to the first slot 53 and into the side of the initial end.

[0046] The tensioning member 3 comprises a tension spring 31 and a steel wire rope 32, the tension spring 31 is located in the first arm lever 1 and at one end away from the first hinge seat 41, one end of the steel wire rope 32 is hooked on one end of the tension spring 31, and the other end is fixed on the wire sleeve 5 through the access port 411.

[0047] Specifically, the steel wire rope 32 is annular, one end of the steel wire rope 32 is placed in the first notch 53 along the wire groove 52, and the first fastener 55 is inserted into the wire ring of the steel wire rope 32 after installation, so as to limit the steel wire rope 32 from escaping from the first notch 53.

[0048] In order to ensure the reliability of installation, the bearing 6 comprises a fixed bearing 61 and a movable bearing 62, the fixed bearing 61 is fixed at the lower end of the sleeve 413, and the movable bearing 62 is installed at the top of the wire sleeve 5 and embeds the wire sleeve 5 into the sleeve 413.

[0049] In order to ensure that the second arm lever 2 can drive the wire sleeve 5 to rotate together when it is unfolded, a third step 4221 is arranged on the sleeve ring 422, the third step 4221 of the upper end of the sleeve ring 422 is located at the top, the third step 4221 of the lower end of the sleeve ring 422 is located at the bottom, a through rectangular hole 4222 is arranged at the center of the sleeve ring 422 and the wire sleeve 5, specifically, the rectangular block 73 is a regular hexagon, a hinge cover 7 is installed in the third step 4221, and a rectangular block 73 is arranged on the hinge cover 7 and matched with the rectangular hole 4222.

[0050] It must be ensured that the rectangular block 73 completely penetrates the rectangular hole 4222 on the sleeve ring 422 and is partially embedded into the rectangular hole 4222 on the wire sleeve 5.

[0051] The hinge cover 7 comprises a first hinge cover 71 and a second hinge cover 72, in order to fix the first hinge cover 71 and the second hinge cover 72 on the second hinge seat 42, a threaded hole 731 is arranged on the surface of the rectangular block 73 on the first hinge cover 71, in order to save materials, a plurality of groups of reinforcing ribs are arranged on the first hinge cover 71 and located at the edge of the threaded hole 731, a through hole 721 is arranged on the second hinge cover 72 and recessed and stepped on the other side of the surface of the rectangular block 73, a second fastener 8 is arranged to pass through the through hole 721, the front end of the second fastener 8 is screwed into the threaded hole 731, and in order to save materials, a plurality of groups of reinforcing ribs are arranged on the second hinge cover 72 and located at the edge of the through hole 721.

[0052] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present application, and the foregoing embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the technical solutions described in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A crank assembly comprising a first arm lever (1) and a second arm lever (2) connected to each other, a tensioning member (3), characterized in that, The connecting end of the first arm rod (1) and the second arm rod (2) is provided with a hinge seat (4); The hinge center of the two groups of hinge seats (4) is provided with a wire sleeve (5); At least one hinge seat (4) is provided with an access opening (411) communicated with the hinge center, and the tensioning member (3) passes through the access opening (411) and is wound on the wire sleeve (5).

2. A bell crank assembly as claimed in claim 1, wherein, The hinge seat (4) comprises a first hinge seat (41) provided on the first arm rod (1) and a second hinge seat (42) provided on the second arm rod (2); The access opening (411) is located on the first hinge seat (41) on the first arm rod (1).

3. A bell crank assembly as claimed in claim 2, wherein, The first hinge seat (41) comprises a first plug sleeve (412) inserted into one end of the first arm rod (1); A sleeve (413) is arranged on the other end of the first plug sleeve (412); The middle region of the wire sleeve (5) is arranged in the sleeve (413), and the outer diameter of the middle region of the wire sleeve (5) is smaller than the inner diameter of the sleeve (413).

4. A bell crank assembly as claimed in claim 3, wherein, The second hinge seat (42) comprises a second plug sleeve (421) inserted into one end of the second arm rod (2); A sleeve ring (422) is arranged on the other side of the second plug sleeve (421); The sleeve ring (422) is arranged in two groups and is located at the upper and lower ends of the sleeve (413).

5. The bell crank assembly of claim 2, wherein, The tensioning member (3) comprises a tension spring (31) and a steel wire, the tension spring (31) is located in the first arm rod (1) and away from one end of the first hinge seat (41), one end of the steel wire is fixed on the tension spring (31), and the other end is fixed on the wire sleeve (5).

6. A bell crank assembly as defined in claim 3, wherein, The upper and lower parts of the wire sleeve (5) are provided with a first step (51), and the diameter of the middle part of the wire sleeve (5) is greater than the diameter of the upper and lower parts of the wire sleeve (5); The middle part of the wire sleeve (5) is provided with at least one wire groove (52), and the wire groove (52) is in a discontinuous horizontal surrounding shape; The middle part of the wire sleeve (5) and the initial end of the wire groove (52) are provided with a first notch (53) leading to the inside of the wire sleeve (5), a first slot (54) leading to the first notch (53), and a first fastener (55) entering the first notch (53) from the first slot (54).

7. A bell crank assembly as claimed in claim 6, wherein The upper and lower parts of the sleeve (413) are provided with a second step (4131), and the first step (51) and the second step (4131) are flush; The upper and lower ends of the wire sleeve (5) are provided with a bearing (6) arranged on the first step (51) and the second step (4131); The bearing (6) comprises a fixed bearing (61) and a movable bearing (62), the fixed bearing (61) is fixed on the lower end of the sleeve (413), and the movable bearing (62) is arranged on the upper end of the sleeve (413).

8. The bell crank assembly of claim 4, wherein, The sleeve ring (422) is provided with a third step (4221); The center of the sleeve ring (422) and the wire sleeve (5) is provided with a through rectangular hole (4222); The third step (4221) is provided with a hinge cover (7), and the hinge cover (7) is provided with a rectangular block (73).

9. A bell crank assembly according to claim 8, wherein, The rectangular block (73) penetrates through the collar (422) completely and is partially embedded into the wire sleeve (5).

10. A bell crank assembly as defined in claim 8, wherein, The hinge cover (7) comprises a first hinge cover (71) and a second hinge cover (72), a threaded hole (731) is arranged on the surface of the rectangular block (73) of the first hinge cover (71), a stepped through hole (721) is arranged on the other surface of the rectangular block (73) of the second hinge cover (72), and a second fastener (8) penetrates through the through hole (721) and is screwed into the threaded hole (731).

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