Fine adjustment buckle

Abstract

The utility model discloses a fine adjustment buckle which comprises an inserting buckle base, a toothed belt strip, a retaining buckle, a first pull buckle and a second pull buckle, a guide groove for the toothed belt strip to movably penetrate through is formed in the middle of the inserting buckle base, and the first pull buckle, the second pull buckle and the retaining buckle are sequentially installed on the inserting buckle base from front to back in the tensioning direction of the toothed belt strip. The first pull buckle and the second pull buckle are arranged in a reverse crossing mode, the second pulling part of the second pull buckle penetrates out of a through hole formed in the top of the first pulling part of the first pull buckle, a pressing block is arranged at the end of the rotating end of the first pull buckle, and the rotating end of the second pull buckle abuts against the overturning part, located at the high position, of the retaining buckle. The retaining teeth, located at the low position, on the retaining buckle can be clamped with the tooth grooves in the toothed belt strip in a matched mode. By the adoption of the structural design that the first pull buckle, the second pull buckle and the retaining buckle are arranged in the reverse and crossed mode, a user only needs to pull the first pull buckle and the second pull buckle upwards at the same time with one hand, the tightness of the toothed belt strip can be rapidly adjusted, the toothed belt strip does not need to be fixed, and operation is faster and more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheel -skating shoe fastener technical field, more specifically, it relates to a fine adjustment buckle. BACKGROUND

[0002] Wheel -skating is a kind of sliding movement carried out by installing wheel on special shoe sole, and wheel -skating shoe can be divided into multiple types, including straight -row wheel -skating and four -wheel skating, and specifically can be applied to skate, smooth shoes and the like. The fastener of traditional wheel -skating shoe, such as magic tape, binding belt or ordinary plug buckle, usually needs both hands to pull tight and fix simultaneously, such as utility model announcement No. CN2245880Y discloses a skate fastener, which simplifies the structure shape of movable flaps and pressure buckle piece, so that the whole has the function of labor-saving, fast moving buckle belt and convenient release, and the assembly process can be further simplified, and the overall manufacturing cost is reduced. When the fastener is operated, first, one hand presses the buckle belt, and the other hand opens the pressure buckle piece of the fastener to release the cooperation of the pulling tooth and the buckle belt tooth shape, and further, the tightness of the buckle belt can be adjusted, and it is difficult to complete the tightness adjustment of this type of fastener by single hand, and the operation is inconvenient. UTILITY MODEL CONTENTS

[0003] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a fine adjustment buckle, which does not need fixed tooth belt, and single hand can easily complete multiple fine adjustment, and the operation is more quick and convenient.

[0004] To achieve the above object, the utility model provides a fine adjustment buckle, which comprises a plug buckle seat, a tooth belt, a stop buckle, a first pull buckle and a second pull buckle, the middle part of the plug buckle seat is provided with a guide groove for the tooth belt to pass through, the tooth belt is movably arranged between the guide grooves of the plug buckle seat from front to back, the first pull buckle, the second pull buckle and the stop buckle are sequentially installed on the plug buckle seat from front to back along the tension direction of the tooth belt, the two ends of the first pull buckle, the second pull buckle and the stop buckle are rotatably connected with the first sliding hole, the second shaft hole and the third shaft hole respectively corresponding to the two side walls of the plug buckle seat through the corresponding pivot and elastic reset member, the first pull buckle and the second pull buckle are reversely crossed, the second pulling part of the second pull buckle passes through the through hole of the first pulling part of the first pull buckle, the rotating end of the first pull buckle is provided with a pressing block, the stop buckle is obliquely arranged below the first pull buckle, the rotating end of the second pull buckle is abutted with the high-positioned turnover part of the stop buckle, the low-positioned stop tooth of the stop buckle can be matched and clamped with the tooth groove on the tooth belt, when the first pull buckle and the second pull buckle are pulled upward at the same time, the pressing block of the first pull buckle can be abutted with the tooth position top of the tooth belt, and the second pull buckle can press the turnover part of the stop buckle and make the stop tooth of the turnover part upward, so that the stop tooth is separated from the tooth groove on the tooth belt.

[0005] As preferred, the top surface of the turning part of the retreat-preventing buckle is provided with a limiting block for limiting the turning angle of the second pull buckle, and the limiting block is located at the turning end of the second pull buckle and extends out of the top surface through hole of the first pulling part of the first pull buckle.

[0006] As preferred, the elastic reset member is a first torsion spring, a second torsion spring and a third torsion spring, the first torsion spring is provided with a first clamping groove on both sides of the entrance end of the guide groove of the plug-in buckle seat, the two clamping hooks of the first torsion spring are clamped in the first clamping groove respectively and the elastic arms of the first torsion spring abut against the bottom of the turning end of the first pull buckle, the second clamping groove and the third clamping groove are respectively provided on the side wall edges of the plug-in buckle seat along the tension direction of the toothed belt strip, the clamping hook of the second torsion spring is clamped in the second clamping groove and the elastic arm of the second torsion spring abuts against the front part of the turning end of the second pull buckle, the clamping hook of the third torsion spring is clamped in the third clamping groove and the elastic arm of the third torsion spring abuts against the lower side of the turning end of the retreat-preventing buckle.

[0007] As preferred, the end part of the first pulling part and the second pulling part of the first pull buckle and the second pull buckle is respectively provided with an upwardly curved arc shape, and the inner end surface of the arc shape of the end part of the first pulling part and the second pulling part is provided with an anti-skid pattern.

[0008] As preferred, the front end of the toothed belt strip is provided with a first mounting hole for fixing the toothed belt strip on the roller skate.

[0009] As preferred, the plug-in buckle belt is further provided, the middle part of the plug-in buckle belt is provided with a second mounting hole for fixing the plug-in buckle seat, the plug-in buckle seat is fixedly connected to the top surface of the plug-in buckle belt through a bolt, and the end part of the plug-in buckle belt is provided with a third mounting hole for fixing the plug-in buckle belt on the roller skate.

[0010] As preferred, the top surface of the plug-in buckle belt is provided with a toothed belt insertion hole located at the outlet end of the guide groove of the retreat-preventing buckle and used for allowing the toothed belt strip to pass through, and the opening size of the insertion end of the toothed belt insertion hole gradually decreases along the tension direction of the toothed belt strip to the opening size of the passing end.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The utility model discloses a novel structure, reasonable in design, through adopting the structure design of first pull buckle, second pull buckle and stop buckle of reverse intersection setting, and user only needs single -handedly to pull up first pull buckle and second pull buckle simultaneously, can the tightness of toothed belt strip be adjusted quickly, in the process of pulling, the pressure block of first pull buckle and toothed belt strip abutment can produce micro - pressure effect, and the stop buckle under the pressure of second pull buckle makes the stop tooth and toothed belt strip separate, creates the condition for toothed belt strip tensioning movement, when first pull buckle and second pull buckle are loosened, the stop tooth will be automatically locked with the tooth groove of toothed belt strip, and the pressure block simultaneously releases the abutment with toothed belt strip, thereby completing a fine adjustment, and this mode does not need to fix toothed belt strip, and single -handedly can easily complete multiple fine adjustment, and operation is more quick and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the drawing needed to use in the embodiment or prior art description briefly introduce, obviously, the drawing in the following description is some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0014] Figure 1 It is the structure schematic drawing of fine adjustment buckle provided by the utility model embodiment;

[0015] Figure 2 It is the explosion schematic drawing of fine adjustment buckle provided by the utility model embodiment;

[0016] Figure 3 It is the partial structure schematic drawing of fine adjustment buckle provided by the utility model embodiment;

[0017] Figure 4 It is the partial structure cross section schematic drawing of fine adjustment buckle provided by the utility model embodiment;

[0018] Figure 5 It is the partial structure explosion schematic of fine adjustment buckle provided by the utility model embodiment Figure 1 ;

[0019] Figure 6 It is the partial structure explosion schematic of fine adjustment buckle provided by the utility model embodiment Figure 2 ;

[0020] Figure 7 It is the partial structure bottom schematic drawing of fine adjustment buckle provided by the utility model embodiment;

[0021] Figure 8 It is the bottom structure schematic drawing of toothed belt strip and insert buckle belt of fine adjustment buckle provided by the utility model embodiment. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, 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 scope of protection of this utility model.

[0023] Please refer to Figure 1 The present invention provides a fine-adjustment buckle, including a buckle seat 1, a toothed strip 2, a backstop buckle 3, a first pull buckle 4, and a second pull buckle 5. The components of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 4 , Figure 7 As shown, the middle part of the buckle seat 1 may be provided with a guide groove 11 for the toothed belt 2 to pass through. The toothed belt 2 moves from front to back through the guide groove 11 of the buckle seat 1. The first pull buckle 4, the second pull buckle 5, and the anti-reverse buckle 3 are respectively installed on the buckle seat 1 from front to back along the tensioning direction of the toothed belt 2. The two ends of the first pull buckle 4, the second pull buckle 5, and the anti-reverse buckle 3 are respectively connected to the first sliding hole 12, the second shaft hole 13, and the third shaft hole 1 on the two side walls of the buckle seat 1 through their respective pivots and elastic reset members. 4. Rotary connection, the first buckle 4 and the second buckle 5 are arranged in opposite directions and cross each other. The second actuating part 51 of the second buckle 5 passes through the through hole 40 opened at the top of the first actuating part 41 of the first buckle 4. The rotating end of the first buckle 4 is provided with a pressure block 42. The anti-reverse buckle 3 is inclined and downwardly arranged below the first buckle 4. The rotating end of the second buckle 5 abuts against the flipping part 31 of the anti-reverse buckle 3 at the high position. The anti-reverse tooth 32 of the anti-reverse buckle 3 at the low position can cooperate with the tooth groove 21 on the toothed strip 2 to engage.

[0025] The toothed strip 2 has a first mounting hole 22 at its front end for fixing it to the roller skate. The length of the strip can be adjusted by moving it back and forth in the guide groove 11 of the buckle seat 1. Its toothed groove 21 can cooperate with the anti-reverse tooth 32 of the anti-reverse buckle 3 to fix its position.

[0026] In practice, when the first buckle 4 and the second buckle 5 are pulled upwards simultaneously, the pressing block 42 of the first buckle 4 can abut against the top of the tooth position of the toothed belt 2, while the second buckle 5 can press down the flipping part 31 of the anti-reverse buckle 3 and make its anti-reverse tooth 32 tilt upwards, thereby separating the anti-reverse tooth 32 from the tooth groove 21 on the toothed belt 2.

[0027] like Figure 5As shown, the elastic reset members are provided as a first torsion spring 43, a second torsion spring 53 and a third torsion spring 33, and the insertion buckle base 1 is provided with a first clamping groove 15 on both sides of the entrance end of the guide groove 11 for clamping the clamping hooks of the first torsion spring 43, the two clamping hooks of the first torsion spring 43 are clamped in the first clamping groove 15 and the elastic arms thereof abut against the bottom of the rotating end of the first pull buckle 4, the side walls of the insertion buckle base 1 are respectively provided with a second clamping groove 16 and a third clamping groove 17 along the tension direction of the toothed belt strip 2 for clamping the clamping hooks of the second torsion spring 53 and the third torsion spring 33, the clamping hook of the second torsion spring 53 is clamped on the second clamping groove 16 and the elastic arm thereof abuts against the front of the rotating end of the second pull buckle 5, and the clamping hook of the third torsion spring 33 is clamped on the third clamping groove 17 and the elastic arm thereof abuts against the rotating end of the stop buckle 3 from below.

[0028] Specifically, the first torsion spring 43, the second torsion spring 53 and the third torsion spring 33 are respectively sleeved on the pivots penetrating through the first pull buckle 4, the second pull buckle 5 and the stop buckle 3, the spring body of the first torsion spring 43 is located on both sides of the first pull buckle 4, and the spring bodies of the second torsion spring 53 and the third torsion spring 33 are respectively located on one side of the second pull buckle 5 and the stop buckle 3.

[0029] The first torsion spring 43, the second torsion spring 53 and the third torsion spring 33 respectively provide the first pull buckle 4, the second pull buckle 5 and the stop buckle 6 with elastic force for resetting, so that the above-mentioned components can rotate around the corresponding pivots and return to the initial positions after being pulled.

[0030] As shown in the drawings, Figure 6 The top surface of the turnover portion 31 of the stop buckle 3 can be provided with a limiting block 30 for limiting the turnover angle of the second pull buckle 5, the limiting block 30 is located on one side of the rotating end of the second pull buckle 5 and protrudes from the top surface through hole 40 of the first pulling portion 41 of the first pull buckle 4.

[0031] When the second pull buckle 5 is pulled to a certain angle, the rotating end will be in contact with the limiting block 30, the limiting block 30 prevents the second pull buckle 5 from continuing to rotate, thereby limiting the turnover angle of the second pull buckle 5, and avoiding damage to the components caused by excessive pulling.

[0032] In order to enable the user to apply force more stably when pulling the first pull buckle 4 and the second pull buckle 5, the end portions of the first pulling portion 41 and the second pulling portion 51 of the first pull buckle 4 and the second pull buckle 5 are respectively provided in an upwardly curved arc shape, and the inner end surfaces of the arc shapes of the end portions of the first pulling portion 41 and the second pulling portion 51 are respectively provided with anti-skid patterns to prevent the fingers from slipping during the pulling process, thereby improving the convenience of operation.

[0033] As shown in the drawings, Figure 2 and Figure 8As shown, the insert buckle belt 6 can also include a second mounting hole 61 in the middle of the insert buckle belt 6 for fixing the insert buckle 1, and the insert buckle 1 is fixedly connected to the top front end of the insert buckle belt 6 by a bolt. The end of the insert buckle belt 6 is provided with a third mounting hole 62 for fixing it on the roller skate.

[0034] Preferably, the top surface of the insert buckle belt 6 can be provided with a toothed belt insertion hole 63 located on one side of the outlet end of the guide groove 11 of the stop buckle 3 and used for the toothed belt strip 2 to pass through. The opening size of the toothed belt insertion hole 63 gradually decreases from the insertion end to the outlet end in the tension direction of the toothed belt strip 2.

[0035] The insert buckle belt 6 can fix the insert buckle 1 on the roller skate, and the toothed belt strip 2 can pass through the toothed belt insertion hole 63, which plays a certain limiting and guiding role for the toothed belt strip 2, making it more smooth when passing through. The gradually decreasing opening size of the toothed belt insertion hole 63 can also prevent the toothed belt strip 2 from coming out of the toothed belt insertion hole 63.

[0036] The working principle of the embodiment is as follows:

[0037] When the user pulls up the first and second pull buckles 4 and 5 with one hand at the same time, the first and second pull buckles 4 and 5 rotate around their respective pivots, the pressing block 42 of the first pull buckle 4 can abut against the top of the toothed position of the toothed belt strip 2, having a certain micro-pressure effect, and the second pull buckle 5 can press down the flip part 31 of the stop buckle 3 and make the stop teeth 32 upwardly protrude, so that the stop teeth 32 are separated from the tooth groove 21 on the toothed belt strip 2. When the user releases the first and second pull buckles 4 and 5, the pressing block 42 no longer exerts pressure on the toothed belt strip 2, and the stop teeth 32 re-enter another tooth groove 21 of the toothed belt strip 2. The above-mentioned pulling and clamping and releasing reset actions of the first and second pull buckles 4 and 5 are repeated. Through multiple micro-adjustments, the toothed belt strip 2 is forced to gradually move to the required tightness in the tension direction by the micro-pressure of the pressing block 42 and the cooperation of the stop teeth 32 being unlocked, realizing the micro-adjustment tensioning function.

[0038] When the user only pulls up the second pull buckle 4, the rotating end of the second pull buckle 4 presses down the flip part 31 of the stop buckle 3, making the stop buckle 3 rotate around its pivot, the stop teeth 32 upwardly protrude and separate from the tooth groove 21 of the toothed belt strip 2, and the locking of the toothed belt strip 2 is released. At this time, the toothed belt strip 2 can move freely forward and backward, and the user can adjust the length of the toothed belt strip 2 pulled out and the corresponding tightness. After adjusting to the appropriate position, the second pull buckle 3 is released, the stop teeth 32 are inserted into the tooth groove 21 of the toothed belt strip 2, thereby fixing the position of the toothed belt strip 2 and preventing it from coming off.

[0039] In conclusion, the utility model discloses the structural design of first pull buckle, second pull buckle and stop buckle of reverse intersection setting, and user only needs to pull first pull buckle and second pull buckle simultaneously to the up, can the tightness of toothed belt strip be adjusted quickly, the first pull buckle's pressure piece and toothed belt strip abutment can produce the micro - pressure effect in the process of pulling, and the second pull buckle presses stop buckle and makes stop tooth and toothed belt strip separate, and creates the condition for toothed belt strip tensioning movement, when releasing first pull buckle and second pull buckle, stop tooth will be automatically locked with the tooth groove of toothed belt strip, and the pressure piece removes the abutment with toothed belt strip simultaneously, thereby completing a fine adjustment, and this mode does not need to fix toothed belt strip, and single hand can easily complete multiple fine adjustment, and operation is more quick and convenient.

[0040] The above embodiment is the preferred embodiment of the utility model, but the embodiment of the utility model is not limited by the above embodiment, and any change, modification, replacement, combination, simplification, which does not deviate from the spirit and principle of the utility model, should be an equivalent replacement mode, and all are included in the protection scope of the utility model.

Claims

1. A fine-tuning buckle, characterized in that: The device includes a buckle seat, a toothed belt, a locking buckle, a first pull buckle, and a second pull buckle. The buckle seat has a guide groove in its center for the toothed belt to pass through. The toothed belt moves from front to back through the guide groove of the buckle seat. The first pull buckle, the second pull buckle, and the locking buckle are sequentially installed on the buckle seat from front to back along the tensioning direction of the toothed belt. The two ends of the first pull buckle, the second pull buckle, and the locking buckle are rotatably connected to the first sliding hole, the second shaft hole, and the third shaft hole correspondingly opened on the side walls of the buckle seat through their respective pivots and elastic reset members. The first pull buckle and the second pull buckle are arranged in opposite directions and cross each other. The second pull buckle has a second lever... The first pull buckle has a through hole at the top of the first lever part. The rotating end of the first pull buckle is provided with a pressure block. The anti-reverse buckle is inclined and downwardly positioned below the first pull buckle. The rotating end of the second pull buckle abuts against the flipped part of the anti-reverse buckle at a high position. The anti-reverse teeth at a low position on the anti-reverse buckle can engage with the tooth grooves on the toothed belt. When the first and second pull buckles are pulled upwards at the same time, the pressure block of the first pull buckle can abut against the top of the tooth position of the toothed belt. At the same time, the second pull buckle can press down the flipped part of the anti-reverse buckle and make its anti-reverse teeth tilt upwards, thereby separating the anti-reverse teeth from the tooth grooves on the toothed belt.

2. The fine-adjustment buckle according to claim 1, characterized in that: The top surface of the flipping part of the anti-reverse buckle is provided with a limiting block for limiting the flipping angle of the second buckle. The limiting block is located on the rotating end side of the second buckle and extends out of the through hole on the top surface of the first lever part of the first buckle.

3. The fine-adjustment buckle according to claim 1, characterized in that: The elastic reset component is configured as a first torsion spring, a second torsion spring, and a third torsion spring. The buckle seat has first slots recessed on both sides of the inlet end of the guide groove for the hooks of the first torsion spring to engage. The two hooks of the first torsion spring are respectively engaged in the first slots and their elastic arms abut against the bottom of the rotating end of the first pull buckle. The two side walls of the buckle seat are respectively provided with second slots and third slots along the tensioning direction of the toothed strip for the hooks of the second torsion spring and the third torsion spring to engage. The hooks of the second torsion spring are engaged in the second slots and their elastic arms abut against the front of the rotating end of the second pull buckle. The hooks of the third torsion spring are engaged in the third slots and their elastic arms abut against the bottom of the rotating end of the anti-reverse buckle.

4. The fine-adjustment buckle according to claim 1, characterized in that: The first and second pull tabs have their first and second lever parts respectively arranged in an upward curved arc shape, and the inner end face of the arc shape of the first and second lever parts is provided with anti-slip texture.

5. The fine-adjustment buckle according to claim 1, characterized in that: The toothed strip has a first mounting hole at its front end for fixing it to the roller skate.

6. The fine-adjustment buckle according to claim 1, characterized in that: It also includes a buckle strap, the middle of which has a second mounting hole for the buckle seat to be fixedly connected, the buckle seat is fixedly connected to the front end of the top of the buckle strap by bolts, and the end of the buckle strap has a third mounting hole for fixing it to the roller skate.

7. A fine-adjustment buckle according to claim 6, characterized in that: The top surface of the buckle belt is provided with a toothed belt insertion hole located on one side of the outlet end of the guide groove of the anti-reverse buckle and used for the toothed belt strip to pass through. The opening size of the toothed belt insertion hole gradually decreases from the insertion end to the exit end along the tensioning direction of the toothed belt strip.

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