Bending joint stay wire connecting mechanism and bending joint with same

Abstract

The utility model discloses a bending joint stay wire connecting mechanism and a bending joint with the same, the bending joint stay wire connecting mechanism is arranged in the bending joint, the middle of a steel rope (stay wire) passing through the bending joint is cut off, and the cut first steel rope and the cut second steel rope are respectively connected with a first connecting piece and a second connecting piece. When the height of the handle is adjusted, the first connecting piece can change along with the position change generated when the bending joint is adjusted through the rotating structure, and when any position is unlocked after the height is adjusted, the unlocking key drives the first steel rope to enable the first connecting piece to be pulled, and then the first connecting piece drives the second connecting piece to move synchronously; and then the second connecting piece drives the second steel rope to move in the pulling direction of the first connecting piece, through the movable stroke structure, in the movement matching process of the first connecting piece and the second connecting piece, the stroke adjustment change needed by the stay wire can be achieved, the length of the folded stay wire cannot be affected, and finally unlocking folding of the folding joint cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a bending joint pull-wire connection mechanism and a bending joint having the same. Background Art

[0002] The existing stroller unlocking structure usually adopts a control button set on the handlebar, which is unlocked by connecting the folding mechanism of the folding joint between the support leg and the handlebar through a steel rope (pull line). The existing handlebar usually adopts a structure that cannot be adjusted in height. In order to enable the handlebar to realize the function of adjusting the height, a high-section bending joint is set in the handlebar between the control button and the folding joint. After the bending joint is set, the steel rope will first pass through the bending joint and then be connected to the folding mechanism of the folding joint. If the length of the existing steel rope remains unchanged, then when the bending joint is converted to other height positions, the steel rope will be pulled and become tight. If the unlocking operation is performed at this time, it will become more laborious. If the length of the steel rope is simply extended, the stroke driven by the folding and unlocking of the stroller will need to be very large, so some gears after the height adjustment cannot be unlocked, and due to the problem of installation space, such a long unlocking stroke cannot be made. In summary, the existing unimproved structure will affect the effective length of the folding pull line and affect the normal unlocking and folding of the folding joint. Utility Model Content

[0003] The main purpose of the utility model is to propose a bending joint pull wire connection mechanism and a bending joint having the same, aiming to solve the technical problems in the prior art that the bending joint pull wire affects the effective length of the folding pull wire and affects the unlocking and folding of the folding joint.

[0004] To achieve the above-mentioned object, the present invention provides a bending joint cable connection mechanism, comprising a first connecting member, the first connecting member being provided with a first connecting end for connecting to a first steel rope;

[0005] a second connecting member, the second connecting member being provided with a second connecting end for connecting to a second steel rope;

[0006] The rotating structure is used for the first connecting member to rotate relative to the second connecting member when the bending joint is driven to rotate and adjust the height, so as to adjust the swing angle of the first connecting member;

[0007] The movable stroke structure is used so that when the first connecting member is unlocked and pulled by the first steel rope, the first connecting member can drive the second connecting member to move synchronously, and then the second connecting member drives the second steel rope to move in the pulling direction of the first connecting member.

[0008] Furthermore, the first connecting members and the second connecting members are stacked or overlapped in pairs.

[0009] Furthermore, the first connecting member includes:

[0010] first ontology;

[0011] a first elongated slot, the first elongated slot being provided on the first body;

[0012] The boss is cooperatively connected with the second connecting member.

[0013] Furthermore, the second connecting member includes:

[0014] Second ontology;

[0015] a second elongated slot, the second elongated slot being provided on the second body;

[0016] The movable groove is connected with the boss in a cooperative manner. The side of the second body close to the movable groove is a fan-shaped structure. When the first connecting member rotates relative to the second connecting member, the boss rotates along the fan-shaped arc wall.

[0017] Furthermore, the rotating structure includes a boss arranged on the first connecting member and a movable groove arranged on the second connecting member. The second connecting member is provided with a fan-shaped body and a first steel rope connection structure. The movable groove is arranged between the fan-shaped body and the first steel rope connection structure. The first connecting member and the second connecting member are connected through the boss and the movable groove.

[0018] Furthermore, the movable stroke structure includes a first elongated slot provided on the first body and a second elongated slot provided on the second body, and the first elongated slot and the second elongated slot are stacked or overlapped.

[0019] Furthermore, at least one shaft or rod is provided between the first elongated slot and the second elongated slot, the first connecting member can rotate around the shaft or rod relative to the second connecting member, and the second connecting member can move linearly relative to the first connecting member with the shaft or rod as a fulcrum.

[0020] The present utility model also proposes a bending joint, including a bending joint pull wire connection mechanism, an upper bending joint, a lower bending joint and a handle adjustment gear. The upper bending joint is a bending end, and the lower bending joint is a fixed end. The upper bending joint can rotate relative to the lower bending joint to adjust the height of the handle. The handle adjustment gear is provided with a accommodating chamber, and the bending joint pull wire connection mechanism is arranged in the accommodating chamber.

[0021] Furthermore, the handle adjustment gear is provided with multiple gear teeth, the lower bending joint is provided with a first gear groove that cooperates with the multiple gear teeth, and the upper bending joint is provided with a second gear groove that cooperates with the multiple gear teeth. When the multiple gear teeth are simultaneously located in the first gear groove and the second gear groove, it is a locked position and the bending joint is locked; when all the multiple gear teeth are located in the first gear groove, it is an unlocked position and the bending joint is unlocked.

[0022] Furthermore, it also includes a return spring and a control button. The return spring is used to restore the gear gear from the unlocked position to the locked position. The control button is provided with an action component. The action component is used to drive the control button to push the handle adjustment gear from the locked position to the unlocked position when the control button is pressed.

[0023] The technical solution of the present utility model is to set a bending joint pull wire connection mechanism in the bending joint, including a first connecting member, a second connecting member, a rotating structure set inside the first connecting member and the second connecting member, and a movable stroke structure. With this structure, the steel rope (pull wire) that has previously passed through the bending joint is cut in the middle, and the cut first steel rope and second steel rope are respectively connected to the first connecting member and the second connecting member. When the handle height is adjusted, the first connecting member will change with the position change caused by the adjustment of the bending joint through the rotating structure. When unlocking at any position after the height adjustment, the unlocking key drives the first steel rope to pull the first connecting member, and the first connecting member drives the second connecting member to move synchronously, and then the second connecting member drives the second steel rope to move in the pulling direction of the first connecting member. Through the movable stroke structure, the first connecting member and the second connecting member can realize the stroke adjustment change required for the pull wire during the movement coordination, thereby not affecting the length of the folding pull wire, and ultimately not affecting the unlocking and folding of the folding joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a three-dimensional bending joint wire connection mechanism Figure 1 ;

[0025] Figure 2 The utility model is a three-dimensional bending joint wire connection mechanism Figure 2 ;

[0026] Figure 3 Decomposition of the bending joint cable connection mechanism of the utility model Figure 1 ;

[0027] Figure 4 Decomposition of the bending joint cable connection mechanism of the utility model Figure 2 ;

[0028] Figure 5 The bending joint pull wire connection mechanism of the utility model cooperates with the steel rope to form a three-dimensional Figure 1 ;

[0029] Figure 6 The bending joint pull wire connection mechanism of the utility model cooperates with the steel rope to form a three-dimensional Figure 2 ;

[0030] Figure 7 The bending joint pull wire connection mechanism and the steel rope of the utility model are decomposed Figure 1 ;

[0031] Figure 8 The bending joint pull wire connection mechanism and the steel rope of the utility model are decomposed Figure 2 ;

[0032] Figure 9 The bending joint three-dimensional Figure 1 ;

[0033] Figure 10 The bending joint three-dimensional Figure 2 ;

[0034] Figure 11 Decomposition of the bending joint of the utility model Figure 1 ;

[0035] Figure 12 Decomposition of the bending joint of the utility model Figure 2 ;

[0036] Figure 13 Decomposition of the bending joint of the utility model Figure 3 ;

[0037] Figure 14 This is the rotation state of the bending joint cable connection mechanism of the utility model Figure 1 ;

[0038] Figure 15 This is the rotation state of the bending joint cable connection mechanism of the utility model Figure 2 ;

[0039] Figure 16 This is the rotation state of the bending joint cable connection mechanism of the utility model Figure 3 ;

[0040] Figure 17 This is the rotation state of the bending joint cable connection mechanism of the utility model Figure 4 .

[0041] The above drawings include the following reference numerals:

[0042] 100. Bending joint pull wire connection mechanism; 101. Shaft or rod; 1. First connecting member; 11. First connecting end; 12. First body; 2. Second connecting member; 21. Second connecting end; 22. Second body; 221. Arc wall; 3. Rotating structure; 31. Boss; 32. Movable slot; 4. Movable stroke structure; 41. First elongated slot; 42. Second elongated slot; 200. Bending joint; 201. Upper bending joint; 201a. Second gear slot; 202. Lower bending joint; 202a. First gear slot; 203. Handle adjustment gear; 203a. Accommodating chamber; 203b. Multiple gear teeth; 204. Return spring; 205. Control button; 2051. Action component; 300. First steel rope; 400. Second steel rope. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] The present invention proposes a feeding mechanism. In the embodiment of the present invention, Figures 1 to 17 As shown, the bending joint cable connection mechanism 100 includes a first connection member 1, and the first connection member 1 is provided with a first connection end 11 for connecting with a first steel rope 300;

[0047] A second connecting member 2, the second connecting member 2 is provided with a second connecting end 21 for connecting to a second steel rope;

[0048] In this embodiment, when unlocking, the first steel rope 300 causes the first connecting member 1 to be pulled, and the first connecting member 1 drives the second connecting member 2 to move synchronously, and then the second connecting member 2 drives the second steel rope to unlock and retract the retracting mechanism of the retracting joint (not shown).

[0049] In order to enable the handle to realize the function of adjusting the height, a high-section bending joint 200 is set between the handle control button (not shown) and the folding joint (not shown). After the bending joint 200 is set, the steel rope will first pass through the bending joint 200 and then be connected to the folding mechanism of the folding joint (not shown). If the entire steel rope is directly passed through the bending joint 200 and connected to the folding mechanism of the folding joint (not shown), it will affect the effective length of the folding pull line and affect the normal unlocking and folding of the folding joint (not shown).

[0050] For ease of understanding, the first end of the first steel rope 300 is connected to the handle control button (not shown), and the other end is connected to the first connecting member 1; and the first end of the second steel rope 400 is connected to the second connecting member 2, and the other end is connected to the folding mechanism of the folding joint (not shown).

[0051] By cutting the steel rope passing through the bending joint 200 and dividing it into two steel ropes, a first steel rope 300 and a second steel rope, the first steel rope 300 is connected to the first connecting member 1, and the second steel rope is connected to the second connecting member 2. Afterwards, regardless of the rotation operation of the bending joint 200 in adjusting the handle height, or the pulling operation of the steel rope during the unlocking operation, the effective length of the steel rope (pull wire) will not be affected. In order to achieve this function, a rotating structure 3 is provided inside the first connecting member 1 and the second connecting member 2. The rotating structure 3 is used for the first connecting member 1 to rotate relative to the second connecting member 2 when the bending joint 200 is rotated to adjust the height, thereby finally achieving the adjustment of the swing angle of the first connecting member 1.

[0052] like Figure 14-17 As described above, a schematic diagram of the four states of the first connecting member 1 that changes its position as the bending joint 200 adjusts, the position of the second connecting member 2 is fixed, and the first connecting member 1 rotates relative to the second connecting member 2 to change its position state. The positions of the four states are completed. In the four states, it is necessary to pull the steel rope (pull wire) to unlock the vehicle when the vehicle is folded, and there will be no impact. These four states include gears for reducing the volume during packaging, and the other three gears are the horizontal gear of the handle, the lowest gear of the handle, and the lowest gear of the handle. Of course, in actual use, as the gears are increased or decreased, the position states increase or decrease with the different gears.

[0053] The movable stroke structure 4 is used to drive the second connecting member 2 to move synchronously when the first connecting member 1 is unlocked and pulled by the first steel rope 300, and then the second connecting member 2 drives the second steel rope to move in the pulling direction of the first connecting member 1.

[0054] Specifically, the first connecting members 1 and the second connecting members 2 are stacked or overlapped in pairs.

[0055] Specifically, the first connecting member 1 includes: a first body 12 , a first elongated groove 41 and a boss 31 . The first elongated groove 41 is provided on the first body 12 ; the boss 31 is cooperatively connected with the second connecting member 2 .

[0056] Specifically, the second connecting member 2 includes: a second body 22, a second elongated groove 42 and a movable groove 32, the second elongated groove 42 is arranged on the second body 22; the movable groove 32 is cooperatively connected with the boss 31, and the side of the second body 22 close to the movable groove 32 is a fan-shaped structure. When the first connecting member 1 rotates relative to the second connecting member 2, the boss 31 rotates along the fan-shaped arc wall 221.

[0057] Specifically, the rotating structure 3 includes a boss 31 arranged on the first connecting member 1 and a movable groove 32 arranged on the second connecting member 2. The second connecting member 2 is provided with a fan-shaped body and a first steel rope connection structure. The movable groove 32 is arranged between the fan-shaped body and the first steel rope connection structure. The first connecting member 1 and the second connecting member 2 are connected through the boss 31 and the movable groove 32.

[0058] Specifically, the movable stroke structure 4 includes a first elongated slot 41 provided on the first body 12 and a second elongated slot 42 provided on the second body 22 . The first elongated slot 41 and the second elongated slot 42 are stacked or overlapped.

[0059] Specifically, at least one axis or rod 101 is provided between the first elongated slot 41 and the second elongated slot 42. The first connecting member 1 can rotate around the axis or rod 101 relative to the second connecting member 2, and the second connecting member 2 can move linearly relative to the first connecting member 1 with the axis or rod 101 as a fulcrum.

[0060] The present utility model also proposes a bending joint 200, including a bending joint pull wire connection mechanism 100, an upper bending joint 201, a lower bending joint 202 and a handle adjustment gear 203. The upper bending joint 201 is a bending end, and the lower bending joint 202 is a fixed end. The upper bending joint 201 can rotate relative to the lower bending joint 202 to adjust the height of the handle. The handle adjustment gear 203 is provided with a accommodating chamber 203a, and the bending joint pull wire connection mechanism 100 is arranged in the accommodating chamber 203a.

[0061] In this embodiment, the upper bending joint 201 of the bending joint 200 is a bending end, and the lower bending joint 202 is a fixed end.

[0062] The upper bending joint 201 is one end with an adjustable angle, and the lower bending joint 202 is fixed. The degree of tension of the first connecting member 1 will change as the adjustment angle of the upper bending joint 201 changes, that is, the first connecting member 1 can perform rotational movement to change its position state, and the second connecting member 2 will be driven by the first connecting member 1 when the first connecting member 1 is pulled by the first steel rope 300, and produce horizontal movement to change its position state. Of course, the position change of the first connecting member 1 and the second connecting member 2 will be limited to the axis or rod 101 as the fulcrum and the length of the first elongated slot 41 and the second elongated slot 42 as the moving range.

[0063] Specifically, the handle adjustment gear 203 is provided with a plurality of gear teeth 203b, the lower bending joint 202 is provided with a first gear groove 202a that cooperates with the plurality of gear teeth 203b, and the upper bending joint 201 is provided with a second gear groove 201a that cooperates with the plurality of gear teeth 203b. When the plurality of gear teeth 203b are simultaneously located in the first gear groove 202a and the second gear groove 201a, it is a locked position, and the bending joint 200 is locked; when the plurality of gear teeth 203b are all located in the first gear groove 202a, it is an unlocked position, and the bending joint 200 is unlocked.

[0064] Specifically, it also includes a return spring 204 and a control button. The return spring 204 is used to restore the gear gear from the unlocked position to the locked position. The control button 205 is provided with an action component 2051. The action component 2051 is used to drive the control button 205 to push the handlebar adjustment gear 203 from the locked position to the unlocked position when the control button 205 is pressed.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bending joint pull wire connection mechanism, arranged in a bending joint; characterized in that: include: a first connecting member, the first connecting member being provided with a first connecting end for connecting to the first steel rope; a second connecting member, the second connecting member being provided with a second connecting end for connecting to a second steel rope; The rotating structure is used for the first connecting member to rotate relative to the second connecting member when the bending joint is driven to rotate and adjust the height, so as to adjust the swing angle of the first connecting member; The movable stroke structure is used so that when the first connecting member is unlocked and pulled by the first steel rope, the first connecting member can drive the second connecting member to move synchronously, and then the second connecting member drives the second steel rope to move in the pulling direction of the first connecting member.

2. The bending joint cable connection mechanism according to claim 1, characterized in that: The first connecting members and the second connecting members are stacked or overlapped in pairs.

3. The bending joint cable connection mechanism according to claim 1 or 2, characterized in that: The first connecting member includes: first ontology; a first elongated slot, the first elongated slot being provided on the first body; The boss is cooperatively connected with the second connecting member.

4. The bending joint cable connection mechanism according to claim 3, characterized in that: The second connecting member comprises: Second ontology; a second elongated slot, the second elongated slot being provided on the second body; The movable groove is connected with the boss in a cooperative manner. The side of the second body close to the movable groove is a fan-shaped structure. When the first connecting member rotates relative to the second connecting member, the boss rotates along the fan-shaped arc wall.

5. The bending joint cable connection mechanism according to claim 1, wherein: The rotating structure includes a boss arranged on the first connecting member and a movable groove arranged on the second connecting member. The second connecting member is provided with a fan-shaped body and a first steel rope connection structure. The movable groove is arranged between the fan-shaped body and the first steel rope connection structure. The first connecting member and the second connecting member are connected through the boss and the movable groove.

6. The bending joint cable connection mechanism according to claim 1, wherein: The movable stroke structure comprises a first elongated slot arranged on the first body and a second elongated slot arranged on the second body, and the first elongated slot and the second elongated slot are stacked or overlapped.

7. The bending joint cable connection mechanism according to claim 6, characterized in that: At least one shaft or rod is provided between the first elongated slot and the second elongated slot. The first connecting member can rotate relative to the second connecting member around the shaft or rod. The second connecting member can move linearly relative to the first connecting member with the shaft or rod as a fulcrum.

8. A bending joint, comprising a bending joint pull-wire connection mechanism, characterized in that: The bending joint pull wire connection mechanism is the bending joint pull wire connection mechanism described in any one of claims 1 to 7, and also includes an upper bending joint, a lower bending joint and a handle adjustment gear. The upper bending joint is a bending end, and the lower bending joint is a fixed end. The upper bending joint can rotate relative to the lower bending joint to adjust the height of the handle. The handle adjustment gear is provided with a accommodating chamber, and the bending joint pull wire connection mechanism is arranged in the accommodating chamber.

9. The bending joint according to claim 8, wherein: The handle adjustment gear is provided with multiple gear teeth, the lower bending joint is provided with a first gear groove that cooperates with the multiple gear teeth, and the upper bending joint is provided with a second gear groove that cooperates with the multiple gear teeth. When the multiple gear teeth are located in the first gear groove and the second gear groove at the same time, it is a locked position and the bending joint is locked; when all the multiple gear teeth are located in the first gear groove, it is an unlocked position and the bending joint is unlocked.

10. The bending joint according to claim 9, wherein: It also includes a return spring and a control button. The return spring is used to restore the gear gear from the unlocked position to the locked position. The control button is provided with an action component. When the control button is pressed, the action component is used to drive the handlebar adjustment gear to move from the locked position to the unlocked position.

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