Self-locking buckle device of folding frame

Abstract

The utility model relates to the technical field of bicycle frame folding, and discloses a folding frame self-locking buckle device which comprises a main support and an auxiliary support, the right side of the bottom of the main support is fixedly connected with a fixing seat, the left side of the bottom of the auxiliary support is fixedly connected with a rotating rod, the inner wall of the fixing seat is provided with a sliding groove, and the rotating rod is fixedly connected with the sliding groove. The sliding groove is rotationally connected with the fixing seat, a fixing ring is fixedly connected to the right side of the outer wall of the main support, first springs are fixedly connected to the periphery of the right end of the main support, and the right ends of the multiple first springs are fixedly connected with the same cleaning plate. According to the device, through cooperation of the insertion rod and the insertion groove, primary positioning and guiding of sliding of the auxiliary support are achieved, it is ensured that the auxiliary support moves accurately, deviation is avoided, the clamping block, the second spring, the reserved hole and the insertion hole act together, the auxiliary support is automatically clamped and fixed after being in place, and the mechanical clamping structure of the device is more stable and durable; and the reliability and the safety of frame locking are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bicycle frame folding technical field especially, relates to a folding frame self-locking buckle device. BACKGROUND

[0002] With the increasingly serious problem of urban traffic congestion and the enhancement of people's environmental protection consciousness, folding bicycles and electric bicycles are favored by more and more people because of their convenient carrying and storing characteristics, in order to facilitate folding the bicycle, the frame self-locking buckle device needs to be used.

[0003] Bolts and nuts are used in the folding part, after folding, the nuts are tightened by tools such as wrenches, so that the two parts of the folding part are tightly fixed, preventing the frame from accidentally unfolding during riding, which is mostly used in mountain folding bicycles, and can withstand large riding intensity, but this method needs to use a wrench for tightening and loosening operation, and it is very inconvenient to fold or unfold the frame without tools in the outdoor, and it is time-consuming to adjust the tightness of the nut every time, which affects the use efficiency, the existing technology installs magnetic components at the folding part, and uses magnetic force to lock the frame, this method is convenient to operate, but in the actual use process, the magnetic force will be weakened due to external impact, high temperature or long-term use, and it is difficult to withstand large external force, when used alone, the frame cannot be reliably fixed, and when driving on bumpy roads or bearing large lateral force, the frame has the risk of unfolding. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a folding frame self-locking buckle device, which aims at improving the problem that the magnetic force used in the prior art to lock the frame will be weakened due to external impact, high temperature or long-term use, and it is difficult to withstand large external force.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a folding frame self-locking buckle device, including main support and vice support, the bottom right side of main support is fixedly connected with fixed seat, the bottom left side of vice support is fixedly connected with rotating rod, the inner wall of fixed seat is opened with sliding slot, the sliding slot is connected with fixed seat rotation, the outer wall right side of main support is fixedly connected with fixed ring, the right end of spring no.

[0006] As a further description of the above technical scheme:

[0007] The fixing mechanism comprises a V-shaped support rod, the top of the V-shaped support rod is fixedly connected to the bottom left side of the main support, the outer wall rear side of the V-shaped support rod is fixedly connected with an adjusting belt, the outer wall middle part of the adjusting belt is provided with a buckle, the outer wall front side of the V-shaped support rod is fixedly connected with a fixing belt, the top of the fixing belt is fixedly connected with a clamping sleeve, the buckle is clamped with the clamping sleeve, and the outer wall middle part of the vice support is provided with a fitting groove.

[0008] As a further description of the above technical scheme:

[0009] The inner wall of the two insertion holes is fixedly connected with a pressing plate, and the surface of the two pressing plates is subjected to anti-skid treatment.

[0010] As a further description of the above technical scheme:

[0011] The outer wall front and rear sides of the vice support are provided with a plurality of anti-skid lines, and the spacing between the plurality of anti-skid lines is equal.

[0012] As a further description of the above technical scheme:

[0013] The right end of the vice support is fixedly connected with a connecting sleeve, and the inner wall of the connecting sleeve is provided with a threaded groove.

[0014] As a further description of the above technical scheme:

[0015] The outer wall middle part of the V-shaped supporting rod is provided with a protective sleeve, the front and rear sides of the outer wall of the protective sleeve are threadedly connected with two screws, and the plurality of screws are threadedly connected with the V-shaped supporting rod.

[0016] As a further description of the above technical solutions:

[0017] The outer wall front side middle part of the main support is provided with an information board, the outer wall four corners of the information board are threadedly connected with bolts, and the plurality of bolts are threadedly connected with the main support.

[0018] As a further description of the above technical solutions:

[0019] The inner wall right end front and rear sides of the fixing ring are provided with inclined grooves, and the surfaces of the two inclined grooves are subjected to smooth treatment.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、The utility model discloses a preliminary positioning and guiding of the sub support sliding are realized through the cooperation of the inserting rod and the inserting slot, the accurate movement is ensured, the deviation is avoided, the common action of the clamping block, spring no.

[0022] 2、The adjusting band and the fitting groove are matched, the sub support is embedded in the fitting groove, preliminary fixing is carried out and the foundation for accurate fixing is laid, the friction is increased to prevent sliding, the reliability is improved, the fixing band and the sleeve cooperate to buckle, the sub support is further restricted on the basis of the adjusting band, and the length of the adjusting band can be adjusted to adjust the fixing strength. DRAWINGS

[0023] Figure 1 A perspective view of a folding vehicle frame self-locking buckle device is provided for the utility model;

[0024] Figure 2 A partial structure split view of a folding vehicle frame self-locking buckle device is provided for the utility model;

[0025] Figure 3 A fixing seat schematic view of a folding vehicle frame self-locking buckle device is provided for the utility model;

[0026] Figure 4 A spring no.

[0027] Figure 5 A fixing mechanism schematic view of a folding vehicle frame self-locking buckle device is provided for the utility model;

[0028] Figure 6The utility model provides a kind of discharge port schematic view of folding car frame self-locking buckle device.

[0029] Legend:

[0030] 1, main support;2, fixed mechanism;201, V-shaped support pole;202, adjusting belt;203, buckle;204, fixed band;205, sleeve;206, fit groove;3, vice support;4, fixed seat;5, rotating rod;6, sliding slot;7, fixed ring;8, spring one;9, cleaning plate;10, plug rod;11, insertion slot;12, reserved hole;13, spring two;14, clamping block;15, jack;16, pressing plate;17, non-slip pattern;18, connecting sleeve;19, screw groove;20, protective sleeve;21, screw;22, information board;23, bolt;24, inclined slot;25, discharge port. Specific embodiments

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] Reference Figure 2 , Figure 3 and Figure 6The utility model provides a kind of folding frame self-locking buckle device, including main support 1 and vice support 3, main support 1 is as the main supporting part of entire frame structure, provides installation base for other components and bears main stress, vice support 3 cooperates with main support 1, realize the folding and unfolding function of frame, the bottom right side of main support 1 is fixedly connected with fixed seat 4, for installing rotating rod 5, provide connecting point and support for the rotation of vice support 3, the bottom left side of vice support 3 is fixedly connected with rotating rod 5, by the cooperation with the sliding slot 6 of fixed seat 4 inner wall, vice support 3 can be rotated relative to main support 1, realize the folding action of frame, the inner wall of fixed seat 4 is provided with sliding slot 6, for rotating rod 5 provides sliding track, the outer wall right side of main support 1 is fixedly connected with fixed ring 7, for accommodating vice support 3, and cooperate with the clamping block 14 on vice support 3, the right end of main support 1 is all fixedly connected with spring one 8, spring one 8 provides elastic support for cleaning plate 9, so that it can be displaced under the extrusion of vice support 3 and reset, the right end of multiple spring one 8 is fixedly connected with same cleaning plate 9, in the process that vice support 3 slides into fixed ring 7, by the contact with the inner wall of fixed ring 7, remove the impurity in fixed ring 7, guarantee the cleanness inside fixed ring 7, the outer wall right side of main support 1 is fixedly connected with plug rod 10, plug rod 10 cooperates with the insertion slot 11 on vice support 3, when vice support 3 slides towards fixed ring 7, play positioning and guiding effect, ensure that vice support 3 can accurately slide into fixed ring 7, the left end of vice support 3 is provided with insertion slot 11, insertion slot 11 is used for cooperating with plug rod 10, guide the sliding direction of vice support 3, ensure that vice support 3 can smoothly slide into fixed ring 7, plug rod 10 and insertion slot 11 are slidably connected, the front and back sides of the outer wall of vice support 3 are all provided with reserved hole 12, for installing spring two 13 and clamping block 14, and provide retraction space for clamping block 14 when being extruded, the inner wall of two reserved holes 12 is all fixedly connected with spring two 13, provides elastic force for clamping block 14, so that it can pop out when not being extruded by external force, cooperate with the insertion hole 15 on fixed ring 7 to realize locking, the far away one end of two spring two 13 is all fixedly connected with clamping block 14, in the process that vice support 3 slides into fixed ring 7, interact with fixed ring 7, first be extruded and retract when reaching appropriate position, pop out and be clamped into insertion hole 15 in fixed ring 7 under the action of spring two 13, realize the locking of vice support 3 and main support 1, the inner wall left and right sides of fixed ring 7 are all provided with insertion hole 15, insertion hole 15 is used for cooperating with clamping block 14, provides locking position for clamping block 14, ensure that vice support 3 and main support 1 can be firmly connected together after folding, two clamping blocks 14 are respectively clamped with corresponding insertion hole 15, the bottom left side of fixed ring 7 is provided with discharge port 25, for discharging the impurity in fixed ring 7 that cleaning plate 9 removes, the bottom of main support 1 is provided with fixed mechanism 2, fixed mechanism 2 is used for further fixing vice support 3 after folding, enhance the stability of frame in folding state, prevent vice support 3 accidental unfolding, fixed mechanism 2 is used for fixing vice support 3 after folding;

[0033] Specifically, the main support 1 and the auxiliary support 3 are main components of the folding frame, and the two cooperate with each other to realize the folding and unfolding functions of the frame. The main support 1 provides basic support for the entire device. The auxiliary support 3 can rotate and slide relative to the main support 1 to achieve the folding purpose. The fixing seat 4 is fixed to the bottom right side of the main support 1. The rotating rod 5 is connected to the bottom left side of the auxiliary support 3. The rotating rod 5 can rotate in the sliding groove 6 in the inner wall of the fixing seat 4, so that the auxiliary support 3 can rotate relative to the main support 1 with the rotating rod 5 as the axis, providing a rotating connection basis for the folding of the frame. The fixing ring 7 is located on the right outer wall of the main support 1. The insertion rod 10 is fixed to the right outer wall of the main support 1. The auxiliary support 3 has an insertion slot 11 at the left end. When the auxiliary support 3 slides close to the main support 1, the insertion rod 10 is inserted into the insertion slot 11, playing a positioning and guiding role, ensuring that the auxiliary support 3 can accurately slide into the fixing ring 7, preparing for subsequent locking. The spring 1 8 is connected between the right end of the main support 1 and the cleaning plate 9. When the auxiliary support 3 slides into the fixing ring 7, it will press the cleaning plate 9, causing the spring 1 8 to compress. The cleaning plate 9 tightly adheres to the inner wall of the fixing ring 7 under the elastic force of the spring 1 8, scraping off impurities, which are discharged from the discharge port 25, ensuring the cleanliness of the inside of the fixing ring 7, facilitating stable clamping. The spring 2 13 is fixed in the inner wall of the reserved hole 12 and connected to the clamping block 14 at both ends. The fixing ring 7 has insertion holes 15 on the left and right sides of the inner wall. During the process of sliding the auxiliary support 3 into the fixing ring 7, the clamping block 14 is pressed to compress the spring 2 13 into the reserved hole 12. When the auxiliary support 3 is in place, the clamping block 14 corresponds to the insertion hole 15, and the spring 2 13 rebounds to make the clamping block 14 clamped into the insertion hole 15, realizing the locking of the auxiliary support 3 and the main support 1.

[0034] Referring to Figure 1 , Figure 2 and Figure 5 , the fixing mechanism 2 includes a V-shaped support rod 201, the top of which is fixedly connected to the bottom left side of the main support 1. The outer wall of the V-shaped support rod 201 is fixedly connected with an adjusting belt 202, which can wrap around the auxiliary support 3. By adjusting the length of the belt, the fixing needs of the auxiliary support 3 under different conditions can be met. The outer wall of the adjusting belt 202 is provided with a buckle 203 in the middle part, which is a key component for connecting the adjusting belt 202 and the top clamping sleeve 205 of the fixing belt 204, and is used for preliminarily fixing the position of the auxiliary support 3 and providing a connection basis for the final fixing. The outer wall of the V-shaped support rod 201 is fixedly connected with the fixing belt 204. The top of the fixing belt 204 is fixedly connected with the clamping sleeve 205. The buckle 203 and the clamping sleeve 205 are clamped together, and the clamping sleeve 205 and the buckle 203 are clamped together, realizing the connection of the adjusting belt 202 and the fixing belt 204. The outer wall of the auxiliary support 3 is provided with a fitting groove 206 in the middle part.

[0035] Specifically, the V-shaped support rod 201 is fixedly connected with the bottom left side of the main support 1, providing a support base for the entire fixing mechanism 2, and the unique V-shaped design can guide the accurate fitting of the auxiliary support 3, facilitating subsequent fixing. The adjusting belt 202 is fixed to the rear side of the outer wall of the V-shaped support rod 201, and a buckle 203 is arranged in the middle. When the auxiliary support 3 is folded to tightly fit the bottom of the V-shaped support rod 201, the adjusting belt 202 is wound from the rear side to the front side of the auxiliary support 3 and placed into the fitting groove 206. By adjusting the length, the auxiliary support 3 is preliminarily fixed and positionally constrained, facilitating subsequent accurate fixing. The fixing belt 204 is connected to the front side of the outer wall of the V-shaped support rod 201, and the top of the fixing belt 204 is matched with the buckle 203. The fixing belt 204 is wound from the top to the front side of the auxiliary support 3, further strengthening the fixing of the auxiliary support 3 based on the preliminary fixing of the adjusting belt 202.

[0036] With reference to Figure 1 , Figure 3 and Figure 6 , the inner walls of the two insertion holes 15 are fixedly connected with pressing plates 16, and the surfaces of the two pressing plates 16 are subjected to anti-slip treatment. When it is necessary to release the locking, the pressing plates 16 can be pressed to extrude the clamping blocks 14 back into the reserved holes 12, facilitating the extraction of the auxiliary support 3. The front and rear sides of the outer wall of the auxiliary support 3 are provided with a plurality of anti-slip patterns 17, and the spacings between the plurality of anti-slip patterns 17 are equal, increasing the friction when the auxiliary support 3 is gripped, facilitating the operation of the auxiliary support 3. The right end of the auxiliary support 3 is fixedly connected with a connecting sleeve 18, and the inner wall of the connecting sleeve 18 is provided with a threaded groove 19 for connecting other components, expanding the functions of the bicycle frame.

[0037] Specifically, when it is necessary to release the locking, the pressing plates 16 can be pressed to extrude the clamping blocks 14 back into the reserved holes 12, facilitating the extraction of the auxiliary support 3. The anti-slip patterns 17 on the outer wall of the auxiliary support 3 can increase the friction when the auxiliary support 3 is gripped, facilitating the operation of the auxiliary support 3. The threaded groove 19 of the connecting sleeve 18 at the right end of the auxiliary support 3 can be used to connect other components, expanding the functions of the bicycle frame.

[0038] With reference to Figure 1 , Figure 2 and Figure 5 , the middle part of the outer wall of the V-shaped support rod 201 is provided with a protective sleeve 20, and the front and rear sides of the outer wall of the protective sleeve 20 are threadedly connected with two screws 21. The plurality of screws 21 are threadedly connected with the V-shaped support rod 201. The protective sleeve 20 on the outer wall of the V-shaped support rod 201 is fixed by the four threadedly connected screws 21, preventing the user from being injured when touching. The middle part of the front side of the outer wall of the main support 1 is provided with an information board 22, which marks the information of the bicycle frame. The four corners of the outer wall of the information board 22 are threadedly connected with bolts 23, and the plurality of bolts 23 are threadedly connected with the main support 1. The inner wall of the right end of the fixing ring 7 is provided with inclined grooves 24 on the front and rear sides, and the surfaces of the two inclined grooves 24 are subjected to smooth treatment, guiding the clamping blocks 14 to smoothly enter the reserved positions, facilitating the clamping.

[0039] Specifically, the protective sleeve 20 of the outer wall of the V-shaped support rod 201 is fixed by the screws 21 connected by threads around, which can prevent the user from being injured when touching and protect the V-shaped support rod 201. The information board 22 on the main support 1 is installed by the four corner bolts 23, which can mark the information of the frame to facilitate the user to understand. The inclined groove 24 on the inner wall of the fixing ring 7 is smoothly processed, which can guide the smooth entry of the clamping block 14 into the reserved position when the sub-support 3 slides in, facilitating clamping.

[0040] Working principle: when the frame needs to be folded and locked, first rotate the sub-support 3 so that the sub-support 3 is in the same horizontal line with the main support 1, then slide the sub-support 3 to the left so that it approaches the fixing ring 7. In this process, the insertion rod 10 is first inserted into the insertion slot 11, which plays a role in preliminary positioning and guiding, ensuring that the sub-support 3 can accurately slide along the predetermined track, preventing the sub-support 3 from deviating during sliding, and ensuring the smooth progress of the subsequent locking action. With the continuous movement of the sub-support 3, the two clamping blocks 14 on the sub-support 3 will be pressed by the fixing ring 7. Due to the interaction between the clamping block 14 and the fixing ring 7, the clamping block 14 will compress the spring 13 and gradually enter the reserved hole 12. At the same time, during the movement of the sub-support 3, it will contact and press the cleaning plate 9, causing the cleaning plate 9 to compress the spring 8 and move to the left. The cleaning plate 9 is tightly attached to the inner wall of the fixing ring 7, thereby scraping off the impurities in the fixing ring 7. The impurities fall out of the discharge port 25. This design can effectively clean the inside of the fixing ring 7, avoid the accumulation of impurities affecting the locking effect, and ensure the reliability and stability of the device. When the sub-support 3 slides to the position where the clamping block 14 corresponds to the insertion hole 15, the clamping block 14 is no longer pressed by the fixing ring 7. At this time, the clamping block 14 is quickly clamped into the corresponding insertion hole 15 under the elastic force of the spring 13, completing the fixation of the sub-support 3 and the main support 1, and forming a stable connection structure.

[0041] And when the need to fix the folded sub support 3 and the main support 1, the sub support 3 is rotated to close the bottom of the V-shaped support rod 201, the top of the V-shaped support rod 201 is fixedly connected to the left side of the bottom of the main support 1, and its unique V-shaped structure can provide stable support for the sub support 3, and guide the sub support 3 to accurately reach the predetermined fixed position, ensure the smooth progress of the subsequent fixing step, then, adjust the belt 202 from the rear side of the sub support 3 to the front side, and put the adjusting belt 202 into the fitting groove 206, the buckle 203 is arranged in the middle of the outer wall of the adjusting belt 202, its main role is to preliminarily fix the position of the sub support 3 by winding around the sub support 3 and embedding into the fitting groove 206, and provide a basis for subsequent accurate fixing, the fitting groove 206 is opened in the middle of the outer wall of the sub support 3, and is matched with the adjusting belt 202, so as to increase the friction and fitting degree between the two, prevent the adjusting belt 202 from sliding on the sub support 3, and improve the reliability of the fixing, then, the fixing belt 204 is wound from the top of the sub support 3 to the front side, the clamping sleeve 205 connected to the top of the fixing belt 204 is clamped with the buckle 203, on the basis of the preliminary fixing of the adjusting belt 202, the fixing belt 204 further restrains the sub support 3, by adjusting the length of the adjusting belt 202, the fixing force on the sub support 3 can be adjusted according to actual needs, so as to adapt to different use scenarios and frame conditions, when the length is adjusted to the appropriate length, the buckle 203 is clamped into the clamping sleeve 205, and the whole fixing process is completed.

[0042] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A folding frame self-locking buckle device, comprising a main bracket (1) and a secondary bracket (3), characterized in that: A fixed base (4) is fixedly connected to the bottom right side of the main support (1), and a rotating rod (5) is fixedly connected to the bottom left side of the secondary support (3). A sliding groove (6) is provided on the inner wall of the fixed base (4), and the sliding groove (6) is rotatably connected to the fixed base (4). A fixed ring (7) is fixedly connected to the outer right side of the main support (1). Springs (8) are fixedly connected to all four sides of the right end of the main support (1). The right ends of multiple springs (8) are fixedly connected to the same cleaning plate (9). A plug rod (10) is fixedly connected to the outer right side of the main support (1). A slot (11) is provided on the left end of the secondary support (3). The plug rod (10) is fixedly connected to the right side of the outer wall of the main support (1). 0) Sliding connection with the slot (11), the outer wall of the sub-support (3) is provided with reserved holes (12) on both the front and back sides, the inner walls of the two reserved holes (12) are fixedly connected with springs (13), the two springs (13) are fixedly connected with a locking block (14) at the opposite ends, the inner wall of the fixing ring (7) is provided with insertion holes (15) on both the left and right sides, the two locking blocks (14) are respectively engaged with the corresponding insertion holes (15), the bottom left side of the fixing ring (7) is provided with a discharge port (25), the bottom of the main support (1) is provided with a fixing mechanism (2), the fixing mechanism (2) is used to fix the folded sub-support (3).

2. The folding frame self-locking buckle device according to claim 1, characterized in that: The fixing mechanism (2) includes a V-shaped support rod (201). The top of the V-shaped support rod (201) is fixedly connected to the bottom left side of the main bracket (1). An adjustment belt (202) is fixedly connected to the rear side of the outer wall of the V-shaped support rod (201). A buckle (203) is provided in the middle of the outer wall of the adjustment belt (202). A fixing belt (204) is fixedly connected to the front side of the outer wall of the V-shaped support rod (201). A sleeve (205) is fixedly connected to the top of the fixing belt (204). The buckle (203) engages with the sleeve (205). A fitting groove (206) is provided in the middle of the outer wall of the secondary bracket (3).

3. The folding frame self-locking buckle device according to claim 1, characterized in that: The inner walls of both holes (15) are fixedly connected with pressing plates (16), and the surfaces of both pressing plates (16) are treated with anti-slip treatment.

4. The folding frame self-locking buckle device according to claim 1, characterized in that: The outer wall of the sub-support (3) is provided with multiple anti-slip patterns (17) on both the front and rear sides, and the spacing between the multiple anti-slip patterns (17) is equal.

5. The folding frame self-locking buckle device according to claim 1, characterized in that: The right end of the sub-support (3) is fixedly connected to a connecting sleeve (18), and the inner wall of the connecting sleeve (18) is provided with a threaded groove (19).

6. The folding frame self-locking buckle device according to claim 2, characterized in that: A protective sleeve (20) is provided in the middle of the outer wall of the V-shaped support rod (201). Two screws (21) are threaded to the front and rear sides of the outer wall of the protective sleeve (20), and multiple screws (21) are threaded to the V-shaped support rod (201).

7. The folding frame self-locking buckle device according to claim 1, characterized in that: An information board (22) is provided on the middle of the front side of the outer wall of the main support (1). Bolts (23) are threadedly connected to the four corners of the outer wall of the information board (22). Multiple bolts (23) are threadedly connected to the main support (1).

8. The folding frame self-locking buckle device according to claim 1, characterized in that: The inner wall of the fixing ring (7) has inclined grooves (24) on both the front and rear sides of the right end, and the surfaces of the two inclined grooves (24) are smoothed.

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