Tubular part folding mechanism

Abstract

The utility model discloses a tubular piece folding mechanism which comprises a movable rod, a fixed rod is connected inside the movable rod in a sliding mode, a clamping groove is formed in the right side of the surface of the movable rod, a first plug pin is arranged on the right side of the surface of the movable rod, and the bottom end of the first plug pin sequentially penetrates through the movable rod and the fixed rod and extends to the bottom face of the movable rod. Through the arrangement of the Y-shaped shifting clamp and the clamping groove, the Y-shaped shifting clamp is shifted to be separated from the clamping groove in the movable rod, meanwhile, the Y-shaped shifting clamp rotates around the second plug pin and drives the cylindrical block to stretch the double-hook spring, and therefore the movable rod and the fixed rod can be folded around the first plug pin; the double-hook spring contracts to drive the Y-shaped shifting clamp to move backwards, so that the Y-shaped shifting clamp is automatically clamped into the clamping groove in the movable rod, secondary protection is provided for the movable rod and the fixed rod, the movable rod and the fixed rod are firmer, the safety of the mechanism is greatly improved, a user can use the mechanism conveniently, and the practicability of the folding mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the field of folding, in particular to a novel folding mechanism. Background Art

[0002] At present, electric scooters, children's toy assisted bicycles and other models used for export trade on the market need to have a secondary locking effect on the folding mechanism on the vehicle body due to the safety requirements of regulations in other countries or regions, so as to provide secondary protection to enhance safety during driving.

[0003] Since the existing electric scooter-related models have relatively high handlebars, most electric scooter manufacturers choose to use a folding design at the connection part of the handlebar to reduce packaging and transportation costs. The common folding mechanism is simple, has no secondary protection, low safety and practicality, is inconvenient for users, and reduces the practicality of the folding mechanism. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a tubular part folding mechanism, which has the advantages of secondary protection and high safety, and solves the problem of low safety and no secondary protection of the folding parts of electric scooters, children's toy scooters and other models.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tubular member folding mechanism, comprising a movable rod, a fixed rod is slidably connected inside the movable rod, a slot is provided on the right side of the surface of the movable rod, a first latch is arranged on the right side of the surface of the movable rod, the bottom end of the first latch passes through the movable rod and the fixed rod in sequence and extends to the bottom surface of the movable rod, a fixing pin is arranged on the surface of the fixed rod, a double-hook spring is arranged inside the fixed rod, the right end of the double-hook spring is sleeved on the surface of the fixing pin, the double-hook spring is located inside the fixed rod, a second latch is arranged on the front side of the surface of the fixed rod, the second latch passes through the bottom surface of the fixed rod, a Y-shaped card is sleeved on the surface of the second latch, the left end of the Y-shaped card is slidably connected with the slot, the Y-shaped card is located inside the fixed rod, a latch is arranged on the surface of the Y-shaped card, the latch passes through the bottom surface of the Y-shaped card, a cylindrical block is sleeved on the surface of the latch, a round hole is opened on the right side of the cylindrical block, and the round hole is sleeved on the left end of the double-hook spring.

[0006] As a preferred embodiment of the utility model, a rotation groove is opened on the side of the Y-shaped dial card, the cylindrical block is located inside the rotation groove, and the cylindrical block is slidably connected to the latch.

[0007] As a preferred embodiment of the present invention, a receiving groove is provided on the surface of the front side of the movable rod, and the receiving groove is slidably connected to the front end of the Y-shaped dial card.

[0008] As a preferred embodiment of the utility model, two reinforcing ribs are provided inside the movable rod and the fixed rod, the two slots are located on the surface of the reinforcing ribs inside the movable rod, the reinforcing ribs of the movable rod and the fixed rod are staggered and slidably connected, and the reinforcing ribs of the movable rod and the fixed rod are both sleeved on the surface of the first pin.

[0009] As a preferred embodiment of the present invention, the rear ends of the inner sides of the moving rod and the fixed rod fit each other.

[0010] As a preferred embodiment of the present invention, the front ends of the surfaces of the moving rod and the fixed rod are both chamfered.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model sets a Y-shaped card and a card slot. The Y-shaped card is pushed to disengage from the card slot inside the movable rod. At the same time, the Y-shaped card rotates around the second latch. At the same time, the Y-shaped card drives the cylindrical block to stretch the double-hook spring, so that the movable rod and the fixed rod can be folded around the first latch. When the movable rod is opened to the rear side, the double-hook spring contracts and drives the Y-shaped card to move backward, so that it is automatically stuck in the card slot inside the movable rod, providing secondary protection for the movable rod and the fixed rod, making them more firm, greatly improving the safety of the mechanism, facilitating the use of users, and improving the practicality of the folding mechanism.

[0013] 2. The utility model sets a sliding connection between the cylindrical block and the latch pin, so that the cylindrical block can rotate to adjust the angle, thereby preventing the spring from being in a bent state after the moving rod and the fixed rod are folded, causing changes in its elastic properties, possibly causing plastic deformation or increasing the elastic modulus, and affecting its service life and function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a front view schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a front view cross-sectional schematic diagram of the structure of the utility model;

[0017] Figure 4 It is a front cross-sectional schematic diagram of the first latch of the structure of the utility model;

[0018] Figure 5 It is a bottom view schematic diagram of the structure of the utility model.

[0019] In the figure: 1, moving rod; 2, first latch; 3, second latch; 4, fixing pin; 5, fixed rod; 6, double hook spring; 7, Y-shaped pull card; 8, cylindrical block; 9, latch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 5 As shown, a tubular member folding mechanism comprises a movable rod 1, a fixed rod 5 is slidably connected inside the movable rod 1, a card slot is provided on the right side of the surface of the movable rod 1, a first latch 2 is provided on the right side of the surface of the movable rod 1, the bottom end of the first latch 2 passes through the movable rod 1 and the fixed rod 5 in sequence and extends to the bottom surface of the movable rod 1, a fixing pin 4 is provided on the surface of the fixed rod 5, a double hook spring 6 is provided inside the fixed rod 5, the right end of the double hook spring 6 is sleeved on the surface of the fixing pin 4, and the double hook spring 6 is located at the fixed rod 5. Inside, a second latch 3 is provided on the front side of the surface of the fixed rod 5, and the second latch 3 penetrates to the bottom surface of the fixed rod 5. The surface of the second latch 3 is sleeved with a Y-shaped pull card 7, and the left end of the Y-shaped pull card 7 is slidably connected with the card slot. The Y-shaped pull card 7 is located inside the fixed rod 5. A latch 9 is provided on the surface of the Y-shaped pull card 7, and the latch 9 penetrates to the bottom surface of the Y-shaped pull card 7. The surface of the latch 9 is sleeved with a cylindrical block 8, and a circular hole is opened on the surface on the right side of the cylindrical block 8, and the circular hole is sleeved on the left end of the double hook spring 6.

[0022] refer to Figure 2 and Figure 3 A rotation groove is provided on the side of the Y-shaped dial card 7, and a cylindrical block 8 is located inside the rotation groove. The cylindrical block 8 is slidably connected with the latch pin 9.

[0023] As a technical optimization solution of the utility model, through the setting of the sliding connection between the cylindrical block 8 and the pin 9, the cylindrical block 8 can be rotated to adjust the angle, thereby avoiding the spring being in a bent state after the moving rod 1 and the fixed rod 5 are folded, causing its elastic properties to change, possibly causing plastic deformation or increasing the elastic modulus, affecting its service life and function.

[0024] refer to Figure 2 and Figure 3 A receiving groove is provided on the front surface of the movable rod 1, and the receiving groove is slidably connected with the front end of the Y-shaped dial card 7.

[0025] As a technical optimization solution of the utility model, through the setting of the storage groove, after the movable rod 1 and the fixed rod 5 are folded, the Y-shaped latch 7 can be located inside the storage groove on the front side of the movable rod 1, thereby avoiding the Y-shaped latch 7 blocking the movable rod 1 and the fixed rod 5 from continuing to fold, resulting in an insufficient folding angle.

[0026] refer to Figures 1 to 5Two reinforcing ribs are arranged inside the movable rod 1 and the fixed rod 5, and the two slots are located on the surface of the reinforcing ribs inside the movable rod 1. The reinforcing ribs of the movable rod 1 and the fixed rod 5 are staggered and slidably connected, and the reinforcing ribs of the movable rod 1 and the fixed rod 5 are both sleeved on the surface of the first pin 2.

[0027] As a technical optimization solution of the present invention, by providing reinforcing ribs, the connection between the moving rod 1 and the fixed rod 5 is made more secure, thereby further improving the safety performance of the mechanism.

[0028] refer to Figures 1 to 5 , the rear ends of the inner sides of the moving rod 1 and the fixed rod 5 fit each other.

[0029] As a technical optimization solution of the utility model, by arranging the rear ends of the inner sides of the movable rod 1 and the fixed rod 5 to fit each other, the movable rod 1 and the fixed rod 5 are more stable in the open state without shaking, making the mechanism more stable when in use.

[0030] refer to Figures 1 to 5 The front ends of the surfaces of the moving rod 1 and the fixed rod 5 are both chamfered.

[0031] As a technical optimization solution of the utility model, the front ends of the surfaces of the movable rod 1 and the fixed rod 5 are both arc-shaped, so that the movable rod 1 and the fixed rod 5 are smoother and more comfortable to use without jamming when folding around the first pin 2, thereby improving the folding efficiency.

[0032] The working principle and use process of the utility model are as follows: when in use, the user pushes the Y-shaped card 7 to disengage it from the slot inside the movable rod 1, and the Y-shaped card 7 rotates around the second latch 3. At the same time, the Y-shaped card 7 drives the cylindrical block 8 to stretch the double-hook spring 6, and the cylindrical block 8 can rotate on the surface of the latch 9 to adjust the angle as the Y-shaped card 7 rotates, thereby preventing the spring from being in a bent state after the movable rod 1 and the fixed rod 5 are folded. Subsequently, the movable rod 1 and the fixed rod 5 can be folded around the first latch 2. After the movable rod 1 and the fixed rod 5 are folded, the Y-shaped card 7 is located inside the storage groove on the front side of the movable rod 1. When the movable rod 1 is opened to the rear, the double-hook spring 6 contracts and drives the Y-shaped card 7 to move backward, so that it is automatically stuck in the slot inside the movable rod 1, providing secondary protection for the movable rod 1 and the fixed rod 5, making them more firm and safe.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tubular member folding mechanism, comprising a movable rod (1), characterized in that: The movable rod (1) is slidably connected to a fixed rod (5) inside, a slot is provided on the right side of the surface of the movable rod (1), a first latch (2) is provided on the right side of the surface of the movable rod (1), the bottom end of the first latch (2) passes through the movable rod (1) and the fixed rod (5) in sequence and extends to the bottom surface of the movable rod (1), a fixing pin (4) is provided on the surface of the fixed rod (5), a double hook spring (6) is provided inside the fixed rod (5), the right end of the double hook spring (6) is sleeved on the surface of the fixing pin (4), the double hook spring (6) is located inside the fixed rod (5), and the surface of the fixed rod (5) is provided with a fixed pin (4). A second latch (3) is provided on the front side of the fixed rod (5), the second latch (3) penetrates to the bottom surface of the fixed rod (5), the surface of the second latch (3) is sleeved with a Y-shaped pull card (7), the left end of the Y-shaped pull card (7) is slidably connected to the card slot, the Y-shaped pull card (7) is located inside the fixed rod (5), the surface of the Y-shaped pull card (7) is provided with a latch (9), the latch (9) penetrates to the bottom surface of the Y-shaped pull card (7), the surface of the latch (9) is sleeved with a cylindrical block (8), the right surface of the cylindrical block (8) is provided with a round hole, and the round hole is sleeved on the left end of the double hook spring (6).

2. A tubular member folding mechanism according to claim 1, characterized in that: A rotation groove is provided on the side of the Y-shaped dial card (7), the cylindrical block (8) is located inside the rotation groove, and the cylindrical block (8) is slidably connected to the latch pin (9).

3. A tubular member folding mechanism according to claim 1, characterized in that: A receiving groove is provided on the surface of the front side of the movable rod (1), and the receiving groove is slidably connected to the front end of the Y-shaped dial card (7).

4. A tubular member folding mechanism according to claim 1, characterized in that: The movable rod (1) and the fixed rod (5) are each provided with two reinforcing ribs inside, the two clamping grooves are both located on the surface of the reinforcing rib inside the movable rod (1), the reinforcing ribs of the movable rod (1) and the fixed rod (5) are staggered and slidably connected, and the reinforcing ribs of the movable rod (1) and the fixed rod (5) are both sleeved on the surface of the first latch (2).

5. The tubular member folding mechanism according to claim 1, characterized in that: The rear ends of the inner sides of the movable rod (1) and the fixed rod (5) fit each other.

6. The tubular member folding mechanism according to claim 1, characterized in that: The front ends of the surfaces of the moving rod (1) and the fixed rod (5) are both chamfered.

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