CN2706038Y - Friction self tightening regulatable buckle lock device - Google Patents

Abstract

The utility model provides a stepless friction adjustable self tightening buckle lock device. The stepless friction adjustable self tightening buckle lock device is composed of a buckling pressing main body, a buckling pressing opening and closing sheet, a lock tongue, a spring, etc. The stepless friction adjustable self tightening buckle lock device is characterized in that After the buckling pressing opening and closing sheet is pressed down, the lock tongue whose elasticity can be adjusted on a shaft lever transversely arranged inside the buckling pressing main body can follow the tightening of a belt or others, such as a canvas belt, or a nylon belt, etc. to be locked. Even though the belt which is buckled and locked is abraded to become thinner, and the lock tongue can follow the change of a gap to automatically adjust. When unlocking, only the buckling pressing opening and closing sheet is undrawn to be unlocked. The stepless friction adjustable self tightening buckle lock device is very convenient to be used. The stepless friction adjustable self tightening buckle lock device can be widely applied to the quick buckling and locking or the unlocking of the belt, a wrapping belt, or a life saving rope. The stepless friction adjustable self tightening buckle lock device has simple design structure, and easy manufacture and production.

Description

Friction self-tightening adjustable buckle lock device

The utility model relates to a buckle lock device for a rope body or a belt body, in particular to a fast connection device for a belt buckle or a rope locked by friction.

At present, the belts (such as Chinese patent 94224471.0) sold on the market that are locked by frictional self-tightening mode slide in the arc or inclined chute provided on both sides of the belt buckle by a sliding shaft, and the belt teeth When the sliding shaft of the thread is in a low position, it is unlocked away from the belt, and when it is in a high position, it is locked by the friction of the belt. Its disadvantage is that the sliding shaft either often slips in the chute during use, or it is difficult to unlock if it is locked too tightly. The chute and the sliding shaft wear quickly, and the sliding shaft cannot be positioned or comes out after wear and tear and becomes invalid.

Chinese patent 92205464.9 announced a kind of eccentric wheel adjustable belt buckle. Its main structure is to install a lock body composed of an eccentric wheel on the main body side of the belt buckle, and a raised block is provided on the side of the eccentric wheel as a handle to operate the eccentric The wheel presses against the belt body or separates from the belt body to realize buckle lock or unlock. After inserting the belt, the scheme needs to manually rotate the eccentric wheel to lock the belt body. Because the raised handle on the eccentric wheel is inconvenient to operate in the buckle body and due to its size limitation Its unlocking power is limited.

The purpose of this utility model is to solve the deficiencies of the above-mentioned products and patents, and propose a buckle lock device with strong locking force, long service life, high reliability, convenient operation and simple structure, which can be used for The stepless quick buckle lock of the belt can also be used for quick connection or locking of general ropes. The lock tongue can automatically press against the belt body or rope body of the buckle lock and has automatic gap adjustment to adapt to belts or ropes of different thickness or wear. body.

The purpose of this utility model is achieved in this way: a friction self-tightening adjustable buckle lock device mainly includes a buckle main body, a buckle opening and closing piece, and a lock tongue. Inside the crimping main body, one or both ends of the shaft outside the crimping main body are embedded with an opening and closing pressing device that can make the lock tongue rotate accordingly.

The deadbolt is a cam or an approximately triangular special-shaped cam, and an open groove is formed on the radial curved surface at one end of the shaft hole on one side so that two ears with the shaft hole are formed on both sides of the groove. The surface of the cam in contact with the belt body or the rope body has a surface and a tooth-shaped texture adapted to the shape of the belt body or the rope body.

The deadbolt can also be bent on both sides into a U-shaped steel sheet deadbolt with connecting ears, and the connecting ears are provided with a shaft hole that is socketed with the shaft rod. The matching curved plane or concave surface is provided with a serrated texture.

The buckle body corresponding to the buckle body and the deadbolt is also correspondingly set as a plane or an arc-shaped plane or a semicircle that fits the shape of the belt body or the rope body, and its surface can also have a tooth-shaped texture to enhance friction, and the front is high and the rear is high. The low semi-circular arc has the function of blocking the excessive deflection of the deadbolt.

The opening and closing device is achieved by nesting the two ends of the square shaft with a semicircular head outside the crimping body and the two ends of an opening and closing crimping sheet connected with the crimping body on the outside. The lock tongue on the square shaft rod placed horizontally in the crimping main body is also realized through the engagement of the square shaft hole provided on its ears with the shaft rod, and the lock tongue square hole nested on the square shaft rod has a Free deflection front and rear is about less than 45 degrees of elastic gap. A steel leaf spring or a torsion spring made of an elastic steel sheet with one end wrapped on the square shaft rod is arranged on the square shaft rod between the two ears of the dead bolt. One end of the spring acts on the bolt so that it is pressed against the main body of the catch. The other end of the square shaft rod is fixed or riveted with a taper pin with a semicircular head outside the opening and closing buckle.

The opening and closing device can also be nested with a square neck provided at both ends of the shaft of the semicircular head and a square hole or a bar hole matched with the square neck of the shaft provided at both ends of an opening and closing buckle piece connected to the outer shell of the crimping body, The section in the middle of the shaft is circular, and the circular shaft is hinged with the circular shaft hole on the ears of the lock tongue, and the two sides of the opening and closing buckle are connected with a cross brace or a protrusion inwardly below the lock tongue When the opening and closing piece rotates, it can push the deadbolt to rotate together. One end of the cylindrical torsion spring arranged on the shaft acts on the deadbolt, and the other end is stuck on a cross brace arranged at the corresponding position of the buckling main body. The other end of the shaft is externally fixed or riveted with a taper pin with a semicircular head.

The opening and closing device can also be that the shaft is fixed with an opening and closing plectrum at an angle of 90 degrees at the outer end of the buckle main body, and the connection between the shaft and the opening and closing plectrum is provided with a square shaft hole at one end of the lock tongue hinged on the shaft The nested square neck, the circular shaft is covered with a cylindrical torsion spring with one end acting on the deadbolt, and the other end of the spring is stuck on a cross brace provided at the corresponding position of the crimping main body. The other end of the shaft rod passes through the shaft hole at the other end of the crimping main body and is externally fixed or riveted with a tapered pin with a semicircular head.

The opening and closing device can also be that one end of a square shaft with a semicircular head fits and fixes the square shaft with a corresponding square hole provided on one side of the crimping main body, and the other end of the square shaft is provided with a shaft with a circular cross section. The shaft is externally socketed and inserted through the connecting hole on the other side of the buckle main body. The end that can rotate on the round shaft is fixedly equipped with a square shaft with an opening and closing paddle. The lock tongue is hinged in the two shaft holes on the shaft. One is a round hole that can be rotated on a fixed square shaft or a square hole nested on a square shaft that can make the tongue freely deflect back and forth on the square shaft with a gap of less than 45 degrees. The other shaft hole of the lock tongue is A square hole nested with a rotatable square shaft with opening and closing paddles. The square shaft between the two lugs of the lock tongue is provided with one end wrapped on the square shaft and made of elastic steel that fits the shape of the shaft. Steel leaf spring, the other end of the steel leaf spring acts on the dead bolt so that it is pressed against the main body of the buckle lock, and the square shaft passes through the shaft hole at the other end of the buckle main body and is fixed or riveted with a tapered pin with a semicircular head. Of course, the above-mentioned spring device is also suitable for this example in which a hole or a groove is installed on the shaft rod to install the cylindrical torsion spring.

The opening and closing device can also be fixed by fitting and fixing one end of the shaft rod with a square neck with a semicircular head to a square hole provided at a corresponding position on one side of the crimping body, and the other end of the circular shaft rod is movably socketed on the other side of the crimping body. The end of the side connecting hole inserted into the round shaft that can be rotated is fixed with a square shaft that opens and closes the paddle. The shaft rod is arranged in a hole or a groove for it or on a cross brace provided at a corresponding position of the crimping main body, and the other end acts on the dead bolt so that it is pressed against the crimping main body. The fixed shaft rod of the square neck passes through the shaft hole of the square shaft rod with the buckle buckle and is externally riveted with an end cover with a screw rod or a tapered rod.

The opening and closing buckle with two ears can also be provided with a protruding edge with a hook on the side of the buckle surface that is in contact with the buckle body. edge. Their locking prevents accidental unlocking of the belt or cord.

The fixed connection belt body or the left buckle frame at one end of the rope body that buckles the main body is directly hinged with the shaft rod that is hinged with the dead bolt through the connecting ears provided at its end with a connecting shaft hole, or it can be connected with the right buckle frame at one end separately. Set of connections binaural hinged.

The cross-section of the buckle lock rope body is circular, and the buckle frame fixedly connected to the rope body in the left and right buckle ring frames of the main body is cylindrical, and it can also be rolled into a cylinder. Or concave edge and be provided with the ring body of inward tooth point.

The effect of the wooden utility model is outstanding. It can automatically adjust the gap to adapt to different thickness or worn belts or ropes. Locking or unlocking is easy and labor-saving, and can quickly realize the connection of various belts or ropes. The structure is simple and easy to produce.

Fig. 1 is a three-dimensional schematic view of one of the structures of the utility model

Fig. 2 is a schematic cross-sectional view of one of the structures of the utility model

Fig. 3 is the three-dimensional schematic view of structure two of the utility model

Fig. 4 is the sectional schematic diagram of the utility model structure two

Fig. 5 is the three-dimensional schematic diagram of the utility model structure

Fig. 6 is the three-dimensional schematic diagram of the fourth structure of the utility model

Below will be further described with embodiment in conjunction with accompanying drawing

As shown in Figures 1 and 2, the crimping main body of the frictional self-tightening lock device designed by the utility model is to place the connecting ears of the buckle frame [11, 65] on the left and right sides of the main body horizontally in the section of the crimping main body The square shaft [6] is hinged into one body, and the lock tongue [1] made of a cam is embedded with the square shaft through the square shaft hole [15] radially arranged at one end, and the lock tongue has a radial direction at the end of the shaft hole. The curved surface has an open groove [20] so that the two sides of the groove form double ears [24] with shaft holes [15], and the square shaft holes on the double ears [24] of the dead bolt [1] nested on the square shaft [15] and the square shaft [6] have an elastic gap of about 30 degrees of free deflection front and rear, and the surface of the cam lock tongue [1] in contact with the buckle belt body has a tooth-shaped texture to increase the friction with the belt body. The square shaft bar [6] between the two ears [24] is provided with a steel leaf spring [40] made of elastic steel sheet with one end wrapped on the square shaft bar and adapted to the shape of the shaft bar. The other end of steel leaf spring [40] acts on dead bolt [1] and makes it stressed to buckle lock main body [11]. The two ends of the square shaft rod [6] with a semi-round head and the two ends outside the crimping body and the square shaft holes [35] provided on both sides of an opening and closing crimping sheet [45] outside the crimping body [11] match the square shaft rod Nesting, the opening and closing buckle pressing sheet two ears are connected with a cross strut [48] near the bottom root of the dead bolt installed, and it can promote the dead bolt root to make it rotate together when the opening and closing buckle pressing sheet rotates. The buckle frame [65] on the left buckle frame fixedly connected to one end of the buckle main body is a common buckle frame that fixes the buckle and the buckle plate with teeth and the buckle groove through the shaft pin. Connect two ears and be directly hinged with the square axle bar [6] that dead bolt [1] is hinged. One end of the square shaft rod [6] passes the square shaft hole [35] that the snap-on buckle sheet fits with it and fixes with the taper pin [42] of the band semicircular head outside.

When in use, opening and closing the buckle pressing sheet [45] and turning it at a certain angle will drive the lock made of the horizontally placed square shaft [6] and the cam nested on the square shaft in the buckle pressing body embedded with the opening and closing buckle. Turn the tongue [1] together, insert the end of the belt along the guide groove of the right buckle frame [11] and enter the left buckle frame [65] through the gap between the lock tongue and the buckle main body. After adjusting the position of the belt, Press the opening and closing buckle pressing piece [45] down and superimpose the buckle main body [11], and the cam lock tongue [1] on the square shaft [6] will press the belt upwards, and the belt will become tighter and tighter when the belt is pulled outward. . Because the cam lock tongue has the freedom to rotate 30 degrees back and forth on the square shaft and it has the torsion force of the steel leaf spring acting upward, it can automatically adjust the gap with different thickness belts. The opening and closing buckle has a longer moment arm, which saves effort when loosening the belt.

Claims (9)

1. A friction self-tightening adjustable buckle lock device, mainly comprising a buckle main body, a buckle opening and closing piece, a spring, a dead bolt, and is characterized in that: elastically hinged with a dead bolt [1, 2, 3, 4, 5] The shaft rods [6, 7, 8, 9, 10, 39] are placed horizontally in the crimping main body [11, 12, 13, 14], and the shaft rods [6, 7, 8, 9, 10] are placed in the crimping main body [11, 12, 13, 14] One or both ends of the outer end are embedded with an opening and closing device that can make the dead bolt rotate thereupon. 2. The friction self-tightening lock device according to claim 1, characterized in that: said deadbolt [1, 2, 3, 4] is a cam or an approximately triangular special-shaped cam, and has a shaft hole [15 , 16, 17, 37, 38] There are open slots [20, 21, 22, 23] on the radial curved surface of one end, so that the two sides of the slot form double ears with shaft holes [24, 25, 26, 27, 28 ], the surface of the dead bolt cam in contact with the belt body or the rope body has a surface and a tooth texture that are adapted to the shape of the belt body or the rope body. 3. The friction self-tightening lock device according to claim 1, characterized in that: the lock tongue can also be bent into a U shape on both sides with a steel plate lock tongue [5] connected to both ears, which connects the two ears Ears [28, 29] are provided with shaft holes [18, 19] which are socketed with shaft rods, and tooth-shaped textures are provided on the arc-shaped plane or concave surface that is adapted to the shape of the belt or rope. 4. The friction self-tightening lock device according to claim 1, characterized in that: the surface corresponding to the buckle body [11, 12, 13, 14] and the lock tongue [1, 2, 3, 4, 5] has A flat or arc-shaped flat or semicircular shape that fits the shape of the belt or rope [30, 31, 32]. 5. According to claim 1, the friction self-tightening locking device is characterized in that: the opening and closing device is a square shaft rod [6] with a semicircular head at both ends outside the crimping body, and the crimping body [11, 12] is in the jacket The square hole [35] or bar hole [36] that is provided at both ends of an open and close buckle piece [33, 34, 45, 46] that is connected to the square shaft [6] is nested and realized, and placed horizontally on the buckle body The dead bolt [1,3] on the square shaft rod in the middle is also realized by the square shaft hole [15,37] provided on its ears [24,27] and the shaft rod [6,39] embedding. The deadbolt square hole [15, 37] on the square shaft rod and the square shaft rod [6, 39] have an elastic clearance of about less than 45 degrees of free deflection, and an end is arranged on the square shaft rod between the two ears of the dead bolt Steel leaf springs [40, 41] or cylindrical torsion springs [50, 54, 68] made of elastic steel sheets wrapped on square shafts [6, 39], one end of the spring acts on the dead bolt to make it stressed Press toward the clasp lock main body, the taper pin [42,43] of band semicircular head outside the opening and closing clasp of square axle rod [6,39] other end is fixed or riveted. 6. The friction self-tightening locking device according to claim 1, characterized in that: the opening and closing device can also be provided with a square neck [44] at both ends of the shaft [10] with a semi-round head, and the square neck is connected with the crimping body The square holes [35, 47] or bar holes [36, 48] that match the square neck [10] of the shaft rod [10] are nested at both ends of an opening and closing buckle [33, 34, 45, 46] of the outer sleeve, The section in the middle of the shaft is circular, and the circular shaft is hinged with the round shaft hole [38] on the double ear [28] with the dead bolt [4], and the opening and closing buckle pressing pieces [45, 46] both sides are near the lock. The bottom of the tongue is connected with a cross brace [48] or a protruding edge [49] is set inwardly. It causes the opening and closing piece to rotate and can promote the dead bolt to rotate together. Acting on the lock tongue, the other end is stuck in the hole [70] or groove on the shaft or on a cross brace provided at the corresponding position of the buckle body, and the other end of the shaft is fixed or riveted externally with a taper pin [51] with a semicircular head Certainly. 7. The friction self-tightening locking device according to claim 1, characterized in that: the opening and closing device can also be a shaft rod [8] with an opening and closing paddle [52] fixed at an angle of 90 degrees to the outer end of the crimping main body At one end, the joint between the shaft [8] and the opening and closing paddle [52] is provided with a lock bolt [2] hinged to the shaft and a square neck [53] nested in a square shaft hole [17] at one end, the circular shaft There is a cylindrical torsion spring [54] with one end acting on the lock tongue, the other end of the spring is stuck on a cross brace [55] set at the corresponding position of the crimping body, and the other end of the shaft passes through the shaft at the other end of the crimping body. The taper pin [56] of outer usefulness band semicircular head is fixed or riveted in hole. 8. The friction self-tightening locking device according to claim 1, characterized in that: the opening and closing device can also be a square hole [ 57] Fitted and fixed, the other end of the square shaft is provided with a section of shaft [58] with a circular cross-section, and the section of the round shaft is movably socketed outside and inserted into the connecting hole on the other side of the main body [14] by crimping. The wooden end that rotates on the shaft rod [58] is fixedly provided with a square shaft rod [60] of an opening and closing plectrum [59], and the dead bolt [2] is hinged on the two shaft holes [16,17] on the shaft rod [7] One of them is a round hole that can rotate on a fixed square shaft or a square hole nested on a square shaft that can make the tongue freely deflect back and forth on the square shaft with a gap of less than 45 degrees. The other shaft of the deadbolt is The hole [17] is a square hole nested with the square shaft [60] of the rotatable band opening and closing plectrum [59], and an end A steel leaf spring [61] or a cylindrical torsion spring [68] made of elastic steel sheet that is wrapped on the square shaft and fits the shape of the shaft. One end of the torsion spring acts on the bolt so that it is pressed against the buckle The main body of the lock, the other end is stuck in the hole [69] or groove provided for it by the shaft, and the square shaft [7] passes through the socketed square shaft [60] with a buckle [59] for external use with a semicircle The taper pin [62] of head is fixed or riveted. 9. The friction self-tightening locking device according to claim 1, characterized in that: the opening and closing device can also be a shaft rod [9] with a semi-round head and a square neck, which is set at a corresponding position on one side of the main body through the square neck. The square hole [57] is fitted and fixed, and the other end of the circular shaft rod is movably socketed to the end that can be rotated on the round shaft rod inserted through the connection hole on the other side of the crimped main body. An opening and closing plectrum [59] is fixedly arranged The square shaft [60] and the lock tongue [4] are hinged on the round shaft, and one end of the cylindrical torsion spring [68] acting between the ears of the lock tongue is stuck on a cross brace [55] set at the corresponding position of the buckle main body , the other end acts on the lock tongue to make it press against the buckle main body, and the half-round head square neck fixed shaft [9] passes through the shaft hole of the square shaft [60] with the buckle buckle [59] for external use with a semicircle The taper pin [62] of head is fixed or riveted.

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