Quick locking mechanism and vertical pipe device

Abstract

The utility model discloses a quick locking mechanism, which comprises a hoop, a handle, a shaft lever and two locking shaft sleeves, outwards protruded support lugs are formed at two ends of the hoop, the two locking shaft sleeves are respectively arranged on the outer sides of the two support lugs, the handle comprises two support arms, the two support arms are respectively arranged on the outer sides of the two locking shaft sleeves, and the two locking shaft sleeves are respectively arranged on the outer sides of the two locking shaft sleeves. Two symmetrical first arc-shaped protruding blocks are formed on the end face, facing the supporting lug, of the locking shaft sleeve, a first inclined face part and a first straight face part are formed at the front end and the rear end, in the first rotating direction, of each first arc-shaped protruding block correspondingly, and two symmetrical second arc-shaped protruding blocks are formed on the outer side face of the supporting lug. Each second arc-shaped convex block comprises a second inclined surface part and a second straight surface part, the second arc-shaped convex block is located in the gap between the two first arc-shaped convex blocks, the second inclined surface parts and the first inclined surface parts are oppositely arranged, and the second straight surface parts and the first straight surface parts are oppositely arranged. According to the utility model, the abrasion of a locking contact surface can be reduced, and meanwhile, the manual operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking mechanism of connecting device especially quick locking mechanism and vertical pipe device. BACKGROUND

[0002] In prior art, for the connection of pipe fittings, the structure of hoop and cam handle is generally used for fixing, the more protruding side of the cam is made to abut against the hoop by rotating the handle, so as to realize the function of locking and fastening, but in actual application, the reaction force of pipe fittings and hoop is all concentrated on the cam, which not only causes the contact surface between the cam and the hoop to be rapidly worn due to excessive stress, but also brings about excessive resistance in the process of rotating the handle, so there are technical problems of easy wear and tear and inconvenient operation. SUMMARY

[0003] The utility model provides a quick locking mechanism and vertical pipe device which can reduce the wear of the locking contact surface and facilitate manual operation.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme.

[0005] A kind of quick locking mechanism, it includes hoop, handle, shaft and two locking shaft sleeves, the both ends of the hoop are formed with outward protruding lug, the gap between two lugs, two locking shaft sleeves are separately arranged on the outer side of two lugs, the handle includes two branch arms, two branch arms are separately arranged on the outer side of two locking shaft sleeves, the shaft passes through two branch arms, two locking shaft sleeves and two lugs, the branch arm is used to drive the locking shaft sleeve to rotate, the end face of the locking shaft sleeve towards the lug is formed with two mutually symmetrical first arc-shaped lugs, the first arc-shaped lug is formed with first inclined surface portion and first straight surface portion at the front and back ends in the first rotation direction, the outer side of the lug is formed with two mutually symmetrical second arc-shaped lugs, the second arc-shaped lug includes second inclined surface portion and second straight surface portion, the second arc-shaped lug is located in the gap between two first arc-shaped lugs, the second inclined surface portion is oppositely arranged with the first inclined surface portion, and the second straight surface portion is oppositely arranged with the first straight surface portion.

[0006] Preferably, the handle is "U" shaped.

[0007] Preferably, the locking shaft sleeve is formed with two mutually symmetrical eccentric lugs on one side towards the branch arm, the position close to the end of the branch arm is formed with a waist-shaped slot hole, and the two eccentric lugs are inserted into the waist-shaped slot hole.

[0008] Preferably, one end of the shaft is provided with a nut, the other end of the shaft is screwed with a nut, and the nut and the nut are respectively abutted on the outer side of two branch arms.

[0009] A riser device comprising a riser base, a riser and the quick locking mechanism as described above, the lower end of the riser is inserted into the upper end opening of the riser base, the side wall of the riser base is provided with an outer notch extending to the upper end of the riser base, and the hoop is sleeved outside the upper end of the riser base.

[0010] Preferably, an inner sleeve is provided, the side wall of the inner sleeve is provided with an inner notch aligned with the outer notch, the inner sleeve is clamped inside the upper end opening of the riser base, and the lower end of the riser is inserted into the inner side of the inner sleeve.

[0011] Preferably, the outer side wall of the inner sleeve is formed with a buckle, the lower end of the outer notch is provided with a clamping groove, and the buckle is clamped in the clamping groove.

[0012] Preferably, the inner side of the hoop is formed with a limiting protrusion, the outer side wall of the riser is formed with a sliding groove extending along the length direction of the riser, the limiting protrusion protrudes into the sliding groove, and the limiting protrusion and the sliding groove are in sliding fit, two limiting screws are screwed in the sliding groove, and the limiting protrusion is located between the two limiting screws.

[0013] Preferably, the side wall of the hoop is provided with a fixing screw, and the fixing screw is screwed in the riser base.

[0014] Preferably, the end of the fixing screw is located in the screw hole on the limiting protrusion, and the diameter of the fixing screw is greater than the width of the limiting protrusion.

[0015] The quick locking mechanism disclosed by the utility model has the beneficial effects that compared with the prior art, the contact stress in the locking and unlocking processes is dispersed to the abutting positions of the plurality of first inclined surfaces and the corresponding second inclined surfaces, the contact stress is avoided from being concentrated in one point, the wear of the contact surface during locking and unlocking is effectively reduced, the service life of the locking mechanism is improved, and the operation resistance during locking and unlocking is distributed on the two supporting arms, so that manual force is more convenient, and the operation process is easier. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the riser device;

[0017] Figure 2 It is an exploded view of the riser device;

[0018] Figure 3 It is an exploded view of the quick locking mechanism;

[0019] Figure 4 It is a perspective view of the hoop;

[0020] Figure 5 is a perspective view of the locking sleeve;

[0021] Figure 6 is a perspective view of the quick locking mechanism;

[0022] Figure 7 is a partial structural view of the riser;

[0023] Figure 8 is a sectional view of the riser device. DETAILED DESCRIPTION

[0024] The utility model will be described in more detail below in combination with the drawings and examples.

[0025] The utility model discloses a quick locking mechanism, in combination with Figures 2 to 6 As shown in the figure, it comprises a hoop 3, a handle 4, a shaft 5 and two locking sleeves 6, the two ends of the hoop 3 are formed with outward protruding lugs 30, the two lugs 30 have a gap 80 between them, the two locking sleeves 6 are separately arranged on the outer side of the two lugs 30, the handle 4 comprises two arms 40, the two arms 40 are separately arranged on the outer side of the two locking sleeves 6, the shaft 5 passes through the two arms 40, the two locking sleeves 6 and the two lugs 30, the arm 40 is used for driving the locking sleeve 6 to rotate, one end face of the locking sleeve 6 towards the lug 30 is formed with two mutually symmetrical first arc-shaped lugs 60, the first arc-shaped lug 60 is formed with a first inclined surface part 61 and a first straight surface part 62 at the front and back ends in the first rotating direction respectively, the outer side face of the lug 30 is formed with two mutually symmetrical second arc-shaped lugs 31, the second arc-shaped lug 31 comprises a second inclined surface part 32 and a second straight surface part 33, the second arc-shaped lug 31 is located in the gap 63 between the two first arc-shaped lugs 60, the second inclined surface part 32 is arranged opposite to the first inclined surface part 61, and the second straight surface part 33 is arranged opposite to the first straight surface part 62.

[0026] In the structure, the locking sleeve 6 is attached to the outer side of the lug 30 under the restriction of the shaft 5 and the two arms 40, and the two can rotate together. The handle 4 can drive the two locking sleeves 6 to rotate relative to the two lugs 30 with the shaft 5 as the center. When the arm 40 drives the locking sleeve 6 to rotate in the first direction, the first inclined surface 61 first contacts and slides relative to the second inclined surface 32 until the outer end surface of the first arc-shaped protrusion 60 and the outer end surface of the second arc-shaped protrusion 31 are aligned and abut. Under the abutting cooperation of the first arc-shaped protrusion 60 and the second arc-shaped protrusion 31, the two lugs 30 are relatively close and the width of the gap 80 gradually decreases, thereby completing the locking. When the arm 40 drives the locking sleeve 6 to rotate in the opposite direction, the first inclined surface 61 is away from the second inclined surface 32 until the first straight surface 62 abuts the second straight surface 33. In this process, the two lugs 30 are relatively far away from each other, and the width of the gap 80 gradually increases, thereby completing the unlocking. Compared with the prior art, the contact stress in the locking and unlocking processes is dispersed to the abutting positions of the plurality of first inclined surfaces 61 and the corresponding second inclined surfaces 32, avoiding the concentration of contact stress at one point, effectively reducing the wear of the contact surface during locking and unlocking, thereby prolonging the service life of the locking mechanism. At the same time, the operation resistance during locking and unlocking is distributed on the two arms 40, so it is more convenient to manually apply force, and the operation process is easier.

[0027] As a preferred mode, the handle 4 is in the shape of "U".

[0028] In order to realize the synchronous rotation of the arm 40 and the locking sleeve 6, in the embodiment, the side of the locking sleeve 6 facing the arm 40 is formed with two eccentric protrusions 64, and the position close to the end of the arm 40 is formed with a waist-shaped slot hole 41, and the two eccentric protrusions 64 are inserted into the waist-shaped slot hole 41.

[0029] In the structure, the two eccentric protrusions 64 and the waist-shaped slot hole 41 have a good clamping fit, and are easy to assemble.

[0030] In the embodiment, one end of the shaft 5 is provided with a nut 50, and the other end of the shaft 5 is screwed with a nut 51, and the nut 50 and the nut 51 abut the outer side of the two arms 40, respectively. In actual application, sometimes it is necessary to adjust the tightness between the nut 50 and the nut 51, at which time the nut 51 can be screwed to adjust to the locking state.

[0031] The above-mentioned quick locking mechanism in the embodiment can be applied to a steering stand pipe device of a bicycle, an electric scooter, etc. For this purpose, the embodiment provides a stand pipe device, which combines the above-mentioned quick locking mechanism and a steering handle. Figures 1 to 8As shown, it comprises a riser seat 1, a riser 2 and the above-mentioned quick locking mechanism, the lower end of the riser 2 is inserted into the upper end opening of the riser seat 1, the side wall of the riser seat 1 is provided with an outer notch 10, the outer notch 10 extends to the upper end of the riser seat 1, and the hoop 3 is sleeved on the outside of the upper end of the riser seat 1.

[0032] In order to tightly fit between the riser seat 1 and the riser 2, the embodiment comprises an inner sleeve 7, the side wall of the inner sleeve 7 is provided with an inner notch 70 aligned with the outer notch 10, the inner sleeve 7 is clamped on the inside of the upper end opening of the riser seat 1, and the lower end of the riser 2 is inserted into the inside of the inner sleeve 7.

[0033] When the handle 4 is rotated in the first rotation direction a, the hoop 3 gradually tightens, the width of the outer notch 10 and the inner notch 70 gradually decreases, and the riser 2 is further fastened.

[0034] In the embodiment, the inner sleeve 7 and the riser seat 1 are in a clamping relationship, please refer to Figure 2 , the outer side wall of the inner sleeve 7 is formed with a buckle 71, the lower end of the outer notch 10 is provided with a clamping groove 11, and the buckle 71 is clamped in the clamping groove 11.

[0035] Combining Figure 2 , Figure 7 and Figure 8 As shown, in the embodiment, the inner side of the hoop 3 is formed with a limiting protrusion 34, the outer side wall of the riser 2 is formed with a sliding groove 20, the sliding groove 20 extends along the length direction of the riser 2, the limiting protrusion 34 protrudes into the sliding groove 20, and the limiting protrusion 34 and the sliding groove 20 are in sliding fit, two limiting screws 21 are screwed in the sliding groove 20, and the limiting protrusion 34 is located between the two limiting screws 21.

[0036] In the above structure, the limiting protrusion 34 extends into the sliding groove 20 after passing through the riser seat 1 and the inner sleeve 7, and the limiting protrusion 34 and the sliding groove 20 maintain a sliding fit relationship, which can improve the smoothness of the up and down movement of the riser 2 when adjusting the vertical position of the riser 2, and by providing two limiting screws 21 in the sliding groove 20, the limiting protrusion 34 can be limited on both sides, thereby realizing the limiting function of the adjustable height of the riser 2.

[0037] On this basis, the side wall of the hoop 3 is provided with a fixing screw 35, and the fixing screw 35 is screwed into the riser seat 1.

[0038] Further, the end of the fixing screw 35 is located in the screw hole 36 on the limiting protrusion 34, and the diameter of the fixing screw 35 is greater than the width of the limiting protrusion 34. Wherein, the fixing screw 35 is used to fix and connect the hoop 3 and the riser base 1, and the fixing screw 35 is arranged on the limiting protrusion 34, the limiting protrusion 34 provides the further extending screw hole 36 for the fixing screw 35, so as to ensure that the fixing screw 35 can reliably fix the hoop 3 and the riser base 1, and the situation of screw sliding is avoided.

[0039] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement or improvement within the technical scope of the present application should be included in the scope of the present application.

Claims

1. A quick-locking mechanism, characterized in that, The utility model relates to a quick locking mechanism, including has the hoop (3), handle (4), axle rod (5) and two locking sleeve (6), the both ends of hoop (3) form with the outward protruding lug (30) between two lug (30) have the gap (80), two locking sleeve (6) are separately located in the outside of two lug (30), handle (4) including two branch (40), two branch (40) are separately located in the outside of two locking sleeve (6), axle rod (5) passes through two branch (40), two locking sleeve (6) and two lug (30), branch (40) are used to drive locking sleeve (6) rotation, the one end surface of locking sleeve (6) towards lug (30) forms with two mutually symmetrical first arc-shaped lug (60), the first arc-shaped lug (60) along the front and back ends of first rotation direction respectively forms with first inclined surface portion (61) and first straight surface portion (62), the outside of lug (30) forms with two mutually symmetrical second arc-shaped lug (31), second arc-shaped lug (31) including second inclined surface portion (32) and second straight surface portion (33), second arc-shaped lug (31) is located in the gap (63) between two first arc-shaped lug (60), second inclined surface portion (32) is oppositely arranged with first inclined surface portion (61), second straight surface portion (33) is oppositely arranged with first straight surface portion (62).

2. The quick-locking mechanism of claim 1, wherein The handle (4) is in the shape of "U".

3. The quick-locking mechanism of claim 1, wherein The locking sleeve (6) is formed with two mutually symmetrical eccentric lugs (64) on one side towards the branch (40), and the branch (40) is formed with a waist-shaped slot hole (41) near the end portion, and the two eccentric lugs (64) are inserted into the waist-shaped slot hole (41).

4. The quick-locking mechanism of claim 1, wherein One end of the axle rod (5) is provided with a nut (50), and the other end of the axle rod (5) is screwed with a nut (51), and the nut (50) and the nut (51) are respectively abutted on the outside of the two branch (40).

5. A riser apparatus characterized by, The utility model relates to a quick locking mechanism, including has the hoop (3), handle (4), axle rod (5) and two locking sleeve (6), the both ends of hoop (3) form with the outward protruding lug (30) between two lug (30) have the gap (80), two locking sleeve (6) are separately located in the outside of two lug (30), handle (4) including two branch (40), two branch (40) are separately located in the outside of two locking sleeve (6), axle rod (5) passes through two branch (40), two locking sleeve (6) and two lug (30), branch (40) are used to drive locking sleeve (6) rotation, the one end surface of locking sleeve (6) towards lug (30) forms with two mutually symmetrical first arc-shaped lug (60), the first arc-shaped lug (60) along the front and back ends of first rotation direction respectively forms with first inclined surface portion (61) and first straight surface portion (62), the outside of lug (30) forms with two mutually symmetrical second arc-shaped lug (31), second arc-shaped lug (31) including second inclined surface portion (32) and second straight surface portion (33), second arc-shaped lug (31) is located in the gap (63) between two first arc-shaped lug (60), second inclined surface portion (32) is oppositely arranged with first inclined surface portion (61), second straight surface portion (33) is oppositely arranged with first straight surface portion (62).

6. Standpipe arrangement according to claim 5, characterized in that The utility model relates to a quick locking mechanism, including has the hoop (3), handle (4), axle rod (5) and two locking sleeve (6), the both ends of hoop (3) form with the outward protruding lug (30) between two lug (30) have the gap (80), two locking sleeve (6) are separately located in the outside of two lug (30), handle (4) including two branch (40), two branch (40) are separately located in the outside of two locking sleeve (6), axle rod (5) passes through two branch (40), two locking sleeve (6) and two lug (30), branch (40) are used to drive locking sleeve (6) rotation, the one end surface of locking sleeve (6) towards lug (30) forms with two mutually symmetrical first arc-shaped lug (60), the first arc-shaped lug (60) along the front and back ends of first rotation direction respectively forms with first inclined surface portion (61) and first straight surface portion (62), the outside of lug (30) forms with two mutually symmetrical second arc-shaped lug (31), second arc-shaped lug (31) including second inclined surface portion (32) and second straight surface portion (33), second arc-shaped lug (31) is located in the gap (63) between two first arc-shaped lug (60), second inclined surface portion (32) is oppositely arranged with first inclined surface portion (61), second straight surface portion (33) is oppositely arranged with first straight surface portion (62).

7. A riser installation according to claim 6, wherein ​ 8. The riser apparatus of claim 6, wherein, The inner side of the hoop (3) forms a limiting protrusion (34), the outer side wall of the riser (2) forms a sliding groove (20) extending along the length direction of the riser (2), the limiting protrusion (34) protrudes into the sliding groove (20), and the limiting protrusion (34) and the sliding groove (20) are in sliding fit, two limiting screws (21) are screwed into the sliding groove (20), and the limiting protrusion (34) is located between the two limiting screws (21).

9. A riser installation according to claim 8, wherein, The side wall of the hoop (3) is provided with a fixing screw (35) screwed into the riser base (1).

10. A riser installation according to claim 9, wherein The end of the fixing screw (35) is located in a screw hole (36) on the limiting protrusion (34), and the diameter of the fixing screw (35) is greater than the width of the limiting protrusion (34).

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