A front wheel kingpin steering fixing device

Abstract

The utility model discloses a front wheel vertical shaft steering fixing equipment relates to the stroller component technical field, improves the problem that the fixed assembly of front wheel vertical shaft appears the cracking phenomenon and the fixed assembly cannot contract or hide when not needing fixing, including sleeve, sleeve surface sets up fixed groove, the utility model discloses a telescopic cylinder, spacing strip, magnetic stripe no.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle component technology, and in particular to a front wheel vertical shaft steering fixing device. Background Technology

[0002] Strollers are primarily designed for infants and toddlers to push and steer when they are out with adults. The front wheels of a stroller are generally used for steering. When the stroller is traveling at high speed, to prevent the front wheels from suddenly turning sharply due to road conditions or excessive force from the user, which could cause the stroller to tip over, and also because sometimes the steering function of the front wheels is not needed, the direction of the front wheels needs to be fixed. In the process of realizing this utility model, the inventors discovered that the technology has at least the following problems; The existing front wheel axle is not effective in fixing the axle; for example, sharp turns can cause cracks in the fixing components of the front wheel axle. The existing front wheel axle fixing components can only fix the axle individually. When fixing is not needed, the fixing components cannot be retracted or hidden, which is very inconvenient for the use of children's strollers.

[0003] Therefore, a front wheel vertical axle steering fixing device is now proposed. Utility Model Content

[0004] To address the issues of cracking of the front wheel vertical axle fixing components caused by sharp steering and the inability of the fixing components to retract or conceal when not in use, this invention provides a front wheel vertical axle steering fixing device.

[0005] This utility model provides a front wheel vertical axle steering fixing device, which adopts the following technical solution: A front wheel vertical axle steering fixing device includes a sleeve, a fixing groove is formed on the surface of the sleeve, and a telescopic cylinder is embedded inside the sleeve. A vertical shaft is embedded inside the telescopic cylinder; A locking block is embedded inside the fixing groove.

[0006] By adopting the above technical solution, the vertical shaft is embedded inside the telescopic cylinder. When the vertical shaft needs to be fixed, the telescopic cylinder is rotated so that it protrudes from the sleeve. When the vertical shaft does not need to be fixed, the telescopic cylinder is selected again so that it is embedded inside the sleeve, which facilitates the concealment of the fixing components.

[0007] Optionally, the sleeve includes a fixing groove, which is opened on the front of the sleeve, is vertically opened, and is adapted to the locking block; Secondly, there are two limit strips, which are respectively set at the top and bottom of the sleeve.

[0008] Secondly, the magnetic strip is located inside the sleeve, between the two limiting strips.

[0009] By adopting the above technical solution, when it is necessary to fix the vertical shaft, the locking block is embedded inside the fixing groove to fix the sleeve.

[0010] Optionally, the telescopic cylinder includes a groove, which can be opened at one-third or one-quarter of the surface of the telescopic cylinder, and two sets are provided; Secondly, the second magnetic strip is disposed on the surface of the telescopic cylinder and located between the two sets of sliding grooves.

[0011] Secondly, there are three sets of limiting blocks located at the opening of the telescopic cylinder. The three sets of limiting blocks are embedded into the inside of the telescopic cylinder through slots, and each set has a damper at the bottom. Secondly, there are two sets of buffer cylinders, two in each set, located inside the telescopic cylinder, and each buffer cylinder is equipped with a spring. One end of the spring is fixedly connected to a telescopic rod, and the other end of the telescopic rod is fixedly connected to a clamping block.

[0012] By adopting the above technical solution, when it is necessary to fix the vertical shaft, rotate the telescopic cylinder so that it protrudes out of the sleeve, and then embed the vertical shaft into the telescopic cylinder. At this time, the limiting block limits the vertical shaft, and the clamping block clamps and fixes the vertical shaft.

[0013] Optionally, the locking block includes a locking strip, the length and width of which are consistent with the length and width of the fixing groove, and the two are compatible.

[0014] By adopting the above technical solution, when it is necessary to fix the vertical shaft, the sleeve is first limited and fixed by the locking block, so that the sleeve is fixed while the vertical shaft is fixed.

[0015] Optionally, both limiting strips are rectangular and change with the curvature of the sleeve. The two limiting strips are respectively adapted to the two sets of sliding grooves.

[0016] By adopting the above technical solution, the limiting block can limit the telescopic cylinder. When the vertical shaft needs to be fixed, the telescopic cylinder can be rotated to move it away from the limiting strip. When the vertical shaft does not need to be fixed, the telescopic cylinder can also be rotated to lock into the limiting strip for limiting.

[0017] Optionally, the first magnetic stripe and the second magnetic stripe are compatible with the principle of like poles repelling each other and unlike poles attracting each other.

[0018] By adopting the above technical solution, the matching of magnetic stripe one and magnetic stripe two can further limit the telescopic cylinder and prevent it from falling out.

[0019] Optionally, the three sets of limiting blocks have triangular cross-sections, and the three sets of limiting blocks surround each other in a triangular shape. The three sets of limiting blocks can be made of rubber or a material with friction.

[0020] By adopting the above technical solution, when the vertical shaft is embedded inside the telescopic cylinder, the vertical shaft applies pressure to the limiting block, causing the limiting block to retract. When the vertical shaft is embedded, the limiting block is driven to lock onto the surface of the vertical shaft by the rebound effect of the damper, thus fixing it.

[0021] Optionally, the clamping block has a semi-arc cross-section, and the two sets of buffer cylinders form a U-shape inside the telescopic cylinder.

[0022] By adopting the above technical solution, the vertical shaft can be clamped by the clamping blocks, and the two sets of clamping blocks are arranged in a U-shape, which can further clamp and fix the vertical shaft.

[0023] In summary, this utility model has the following beneficial effects: 1. This utility model uses limiting blocks and clamping blocks. When the vertical shaft is embedded into the telescopic cylinder, the three sets of limiting blocks limit and fix the vertical shaft. At the same time, the length of the vertical shaft embedded allows the clamping blocks to further clamp the vertical shaft. The clamping blocks are arranged in a U-shape inside the telescopic cylinder, which can achieve the function of fixing the vertical shaft when it turns. Because the U-shaped clamping blocks tightly clamp the vertical shaft around, and when the vertical shaft is embedded into the telescopic cylinder, it applies pressure to the spring, causing the clamping blocks to retract. When the vertical shaft is fully embedded, the spring, due to its own rebound effect, drives the clamping blocks to clamp the vertical shaft. 2. This utility model uses a telescopic cylinder, a limiting strip, a magnetic strip one, a sliding groove, and a magnetic strip two. When it is not necessary to fix the vertical shaft, rotating the telescopic cylinder causes the sliding groove and the magnetic strip two to engage with the limiting strip and the magnetic strip one, respectively, thereby achieving the concealment of the telescopic cylinder. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0026] Figure 3 This is a cross-sectional view of the sleeve of this utility model.

[0027] Figure 4 This is a partial structural diagram of the telescopic cylinder of this utility model.

[0028] Figure 5 This is a cross-sectional view of the telescopic cylinder of this utility model.

[0029] Figure 6 This is a schematic diagram of the clamping mechanism of this utility model.

[0030] Explanation of reference numerals in the attached figures: 1. Sleeve; 101. Fixing groove; 102. Limiting strip; 103. Magnetic strip one; 2. Telescopic cylinder; 201. Slide groove; 202. Magnetic strip two; 203. Limiting block; 204. Buffer cylinder; 205. Spring; 206. Telescopic rod; 207. Clamping block; 3. Vertical shaft; 4. Locking block; 401. Locking strip. Detailed Implementation

[0031] The following description, in conjunction with the embodiments of this utility model, includes appendices. Figures 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Please refer to Figures 1-6 A front wheel vertical shaft steering fixing device includes a sleeve 1, a fixing groove 101 is formed on the surface of the sleeve 1, and a telescopic cylinder 2 is embedded inside the sleeve 1. The telescopic cylinder 2 has a vertical shaft 3 embedded inside it; The locking block 4 is embedded inside the fixing groove 101; The sleeve 1 includes a fixing groove 101, which is opened on the front of the sleeve 1 in a vertical manner and is adapted to the locking block 4; Secondly, there are two limit bars 102, which are respectively set at the top and bottom of the sleeve 1.

[0033] Secondly, the magnetic strip 103 is located inside the sleeve 1, between the two limiting strips 102; The telescopic cylinder 2 includes a slide groove 201, which can be opened at one-third or one-quarter of the surface of the telescopic cylinder 2, and two sets are provided. Secondly, magnetic strip 202 is disposed on the surface of telescopic cylinder 2 and located between two sets of sliding grooves 201.

[0034] Secondly, there are three sets of limit blocks 203, which are located at the opening of the telescopic cylinder 2. The three sets of limit blocks 203 are embedded into the inside of the telescopic cylinder 2 through the slots, and each set of limit blocks 203 is equipped with a damper at the bottom. Secondly, there are two sets of buffer cylinders 204, each set consisting of two, located inside the telescopic cylinder 2, and each buffer cylinder 204 is equipped with a spring 205. One end of the spring 205 is fixedly connected to a telescopic rod 206, and the other end of the telescopic rod 206 is fixedly connected to a clamping block 207. When it is necessary to fix the vertical shaft 3, rotate the telescopic cylinder 2 to make the slide groove 201 and the magnetic strip 202 move away from the limit bar 102 and the magnetic strip 103 (Note: the length of the slide groove 201 determines the number of rotations of the telescopic cylinder 2), so that the telescopic cylinder 2 protrudes from the surface of the sleeve 1 and the vertical shaft 3 is embedded inside it. When the vertical shaft 3 is embedded inside the telescopic cylinder 2, the three sets of limiting blocks 203 limit and fix the vertical shaft 3. At the same time, as the vertical shaft 3 is embedded longer, the clamping block 207 further clamps the vertical shaft 3. The clamping block 207 is arranged in a U-shape inside the telescopic cylinder 2, which can achieve the function of fixing the vertical shaft 3 when turning, because the U-shaped clamping block 207 tightly clamps the vertical shaft 3 from all sides. At the same time, when the vertical shaft 3 is embedded into the telescopic cylinder 2, it applies pressure to the spring 205, causing the clamping block 207 to retract. When the vertical shaft 3 is fully embedded, the spring 205, due to its own rebound effect, drives the clamping block 207 to clamp the vertical shaft 3. When the clamping of the vertical shaft 3 is not required, the telescopic cylinder 2 is rotated again so that the slide groove 201 and the magnetic strip 202 engage with the limiting strip 102 and the magnetic strip 103 respectively, thereby achieving the concealment of the telescopic cylinder 2.

[0035] Reference Figure 1 and Figure 2 The locking block 4 includes a locking strip 401, the length and width of which are consistent with the length and width of the fixing groove 101, and the two are adapted to each other. When it is necessary to fix the vertical shaft 3, the sleeve 1 is first fixed by embedding the locking strip 401 into the fixing groove 101, and then the vertical shaft 3 is fixed by the telescopic tube 2. The reason for setting the locking strip 401 is to fix the sleeve 1 and prevent the sleeve 1 from rotating.

[0036] Reference Figure 4 The three sets of limiting blocks 203 have triangular cross-sections, and the three sets of limiting blocks 203 surround each other in a triangular shape. The three sets of limiting blocks 203 can be made of rubber or a material with friction. By setting the shape of the three sets of limiting blocks 203 to triangles and the orientation of the three sets of limiting blocks 203 to triangles, the surface of the vertical shaft 3 can be limited. Triangles have stability, and the limiting blocks 203 can all be made of rubber. Rubber can form friction with the surface of the vertical shaft 3, so it can further limit and fix the vertical shaft 3, preventing the vertical shaft 3 from rotating inside the telescopic cylinder 2.

[0037] The implementation principle of this utility model is as follows: When it is necessary to fix the vertical shaft 3, firstly, the sleeve 1 is fixed by inserting the locking strip 401 into the fixing groove 101. Secondly, the telescopic cylinder 2 is rotated to make it protrude from the sleeve 1 and the vertical shaft 3 is embedded in it. The limiting block 203 generates friction on the surface of the vertical shaft 3, thereby achieving limiting and fixing. The clamping block 207 further clamps and fixes the vertical shaft 3. When it is not necessary to fix the vertical shaft 3, the telescopic cylinder 2 is rotated to make it embedded in the sleeve 1 for concealment, so as to avoid the inconvenience of using the stroller due to the factors of the fixing components.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front wheel vertical axle steering fixing device, comprising a sleeve (1), characterized in that: A fixing groove (101) is opened on the surface of the sleeve (1), and then a telescopic cylinder (2) is embedded inside the sleeve (1). The telescopic cylinder (2) has a vertical shaft (3) embedded inside. The fixing groove (101) is embedded with a locking block (4); The sleeve (1) includes a fixing groove (101), which is opened on the front of the sleeve (1) in a vertical position and is adapted to the locking block (4); Secondly, there are two limit bars (102), which are respectively set at the top and bottom of the sleeve (1); Secondly, magnetic strip one (103) is disposed inside the sleeve (1) and located between the two limiting strips (102).

2. The front wheel vertical axle steering fixing device according to claim 1, characterized in that: The telescopic cylinder (2) includes a sliding groove (201), which can be opened at one-third or one-quarter of the surface of the telescopic cylinder (2), and two sets are provided; Secondly, magnetic stripe two (202) is disposed on the surface of telescopic cylinder (2) and located between the two sets of sliding grooves (201); Secondly, there are three sets of limiting blocks (203), which are located at the opening of the telescopic cylinder (2). The three sets of limiting blocks (203) are embedded into the inside of the telescopic cylinder (2) through the slots, and each set has a damper at the bottom. Secondly, there are two sets of buffer cylinders (204), each set consisting of two, located inside the telescopic cylinder (2), and each buffer cylinder (204) is equipped with a spring (205). One end of the spring (205) is fixedly connected to a telescopic rod (206), and the other end of the telescopic rod (206) is fixedly connected to a clamping block (207).

3. The front wheel vertical axle steering fixing device according to claim 1, characterized in that: The locking block (4) includes a locking strip (401), the length and width of which are consistent with the length and width of the fixing groove (101), and the two are compatible.

4. A front wheel vertical axle steering fixing device according to claim 2, characterized in that: Both of the limiting strips (102) are rectangular and change with the curvature of the sleeve (1). The two limiting strips (102) are respectively adapted to the two sets of sliding grooves (201).

5. A front wheel vertical axle steering fixing device according to claim 2, characterized in that: The magnetic stripe one (103) and magnetic stripe two (202) are compatible with the principle of like poles repelling and unlike poles attracting.

6. A front wheel vertical axle steering fixing device according to claim 2, characterized in that: The three sets of limiting blocks (203) have triangular cross-sections, and the three sets of limiting blocks (203) surround each other in the same triangular shape. The three sets of limiting blocks (203) can be made of rubber or a material with friction.

7. A front wheel vertical axle steering fixing device according to claim 2, characterized in that: The clamping block (207) has a semi-arc cross-section, and the two sets of buffer cylinders (204) form a U-shape inside the telescopic cylinder (2).

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