Press-to-lock belt buckle

Abstract

The utility model discloses a kind of press self-locking belt buckles, belong to belt buckle technical field, specifically including buckle body and buckle head, the buckle body includes the self-locking assembly of being set on the buckle body ontology, the self-locking assembly with the buckle body cooperation is locked to the buckle head, self-locking assembly includes pressing rod, elastic member and lock tooth, the lock tooth on pressing rod is always matched with the tooth on the buckle head under the elastic force of elastic member, the tooth of lock tooth and the tooth on the buckle head are trapezoidal helical tooth and reverse fit, and adjustment to belt buckle can be realized by pressing. The structure design is accurate, work stable, simple structure, low cost, easy to operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of belt buckle, especially press self -locking belt buckle. BACKGROUND

[0002] The belt buckle mainly includes automatic buckle and eyelet buckle, and the belt body is provided with toothed belt body or perforated belt body, in order to ensure the strength and service life of the belt, the belt body is generally provided with a certain thickness and a certain strength, which causes the increase of the self weight, and the comfort is reduced during use.

[0003] Patent document 1 (CN 111838896 A) discloses a kind of belt buckle that realizes the locking of belt body using locking tooth assembly, the thickness of the belt buckle in this scheme is very thin, can use soft, thin pure leather material belt body, and the comfort is improved.The structure uses locking tooth and belt body thorn fastening, repeatedly opens and closes, with the extension of use time, belt body fastening position will appear different degrees of damage, and the service life of belt body is shortened. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to solve the technical problems raised above.

[0005] According to the utility model, a kind of press self -locking belt buckle is provided, including buckle body and buckle head, the buckle body includes self-locking assembly arranged on the buckle body body, the self-locking assembly cooperates with the buckle body body and locks the buckle head;

[0006] The self-locking assembly includes press rod, elastic member and lock tooth;

[0007] The press rod is configured as press rod of coaxial cylinder form with different diameters in multiple sections, one end of the press rod with large diameter is provided with end cap, and the press rod can pass through one or more holes defined by the buckle body body and be perpendicular to the axis of the buckle body body;

[0008] The elastic member is sleeved on the side of the press rod with large diameter and located between the hole defined by the buckle body body and the end cap;

[0009] The lock tooth is defined on the press rod and does not slide relatively in the axial direction of the press rod;The lock tooth passes through the tooth groove of the buckle body body and cooperates with the tooth on the buckle head, the teeth of the lock tooth and the teeth on the buckle head are all trapezoidal inclined teeth and are reversely matched, the teeth on the buckle head are spaced along the axial direction, and the lock tooth can move in the tooth groove along the axial direction of the press rod;

[0010] The buckle body body has double-layer structure and has arc along long axis direction, and the buckle body body has cavity for accommodating the buckle head;The buckle head has the same arc and has width matched with the cavity of the buckle body body.

[0011] Preferably, the pressing rod comprises a first section and a second section with a smaller diameter than the first section, and the end cap is arranged on the first section away from the second section.

[0012] Preferably, the pressing rod is arranged to pass through one or more holes defined on the bottom of the body of the buckle and is perpendicular to the axis of the body of the buckle.

[0013] Preferably, the locking tooth is arranged on the second section of the pressing rod and is arranged to be axially fixed on the first section of the pressing rod.

[0014] Preferably, a sleeve is arranged on the second section of the pressing rod and passes through the hole defined by the body of the buckle.

[0015] Preferably, the width of the middle region of the buckle head is smaller than the width of the two ends of the buckle head, and a bone site is arranged on the same side of the teeth on the buckle head, and a slide groove is arranged on the bottom of the body of the buckle corresponding to the bone site, and the bone site is arranged to be limited in the corresponding slide groove.

[0016] Preferably, the locking tooth has an inclined surface I and a flat surface I opposite to the inclined surface I, and the tooth on the buckle head has an inclined surface II and a flat surface II opposite to the inclined surface II; the flat surface I of the locking tooth can be in surface contact with the flat surface II of the tooth on the buckle head, and the inclined surface I of the locking tooth is in contact with the inclined surface II of the tooth on the buckle head; the pressing rod is arranged to be always matched with the tooth on the buckle head under the elastic force of the elastic member.

[0017] Preferably, the body of the buckle further comprises a pressing plate assembly, the pressing plate assembly comprises a pressing plate and a pivot shaft pivotally connected with the pressing plate, and the pressing plate is pivotally connected with the hole defined on the bottom of the body of the buckle and is perpendicular to the axis of the body of the buckle; and the bottom of the pressing plate is provided with a sawtooth.

[0018] Preferably, a fixing hole for fixing a belt is arranged on one side of the buckle head.

[0019] The pressing self-locking belt buckle has the following beneficial effects: the pressing rod is arranged in the form of a multi-section coaxial cylinder with different diameters, the pressing rod can pass through one or more holes defined by the body of the buckle and is perpendicular to the axis of the body of the buckle, the locking tooth on the pressing rod is always matched with the tooth on the buckle head under the elastic force of the elastic member, the tooth of the locking tooth and the tooth on the buckle head are both trapezoidal inclined teeth and are reversely matched, and the belt buckle can be adjusted by pressing. The structure is precise in design, stable in work, simple in structure, low in cost and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0020] With reference to the drawings, the drawings used in the embodiments or prior art description required will be briefly introduced as follows. Obviously, the drawings are only for the purpose of illustration, and are not intended to limit the scope of the present application.

[0021] Figure 1 A schematic view of the press self-locking belt buckle according to the present application.

[0022] Figure 2 An exploded view of the buckle body according to the present application.

[0023] Figure 3 An exploded view of the buckle head according to the present application.

[0024] Figure 4 A Figure 3 An enlarged view of A in the middle.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 10, press self-locking belt buckle;

[0027] 1, buckle body;

[0028] 11, self-locking assembly;

[0029] 110, movement direction;

[0030] 111, pressing rod; 111a, first section; 111b, second section; 111c, end cap;

[0031] 112, elastic member;

[0032] 113, lock tooth; 113a, inclined surface I; 113b, flat surface I;

[0033] 114, shaft sleeve;

[0034] 115, rivet;

[0035] 12, buckle body;

[0036] 120, axis;

[0037] 121, cavity;

[0038] 122, sliding groove;

[0039] 123, tooth groove;

[0040] 13, pressing plate assembly;

[0041] 131, pressing plate;

[0042] 132, pivot;

[0043] 2, buckle head;

[0044] 210, axis;

[0045] 211, tooth; 211a, inclined surface II; 211b, plane II;

[0046] 212, bone site;

[0047] 213, fixing hole;

[0048] 214, fixing member.

[0049] The purposes, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0050] To make the purposes, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the protection scope of the present disclosure.

[0051] Please refer to Figure 1 , the press self-locking belt buckle 10 can include the buckle body 1 and the buckle head 2, two components are matched and reliably movable connection, the belt is pulled tight and connected to the buckle body 1 and the buckle head 2 respectively. Among them, the connection mode of the belt and the component can adopt common connection form, such as sawtooth compression, perforation fixation and other fixed or movable connection form. For the sawtooth compression structure, the belt is fixed by sawtooth, and since the sawtooth does not need to be frequently opened and closed, there is no problem of aggravating the damage of the sawtooth to the belt.

[0052] The buckle body 1 includes a self-locking assembly 11 arranged on the buckle body 12, and the self-locking assembly cooperates with the buckle body 12 to lock the buckle head 2. Specifically, as shown in Figure 2 , the self-locking assembly 11 can include a pressing rod 111, an elastic member 112 and a lock tooth 113, the pressing rod 111 is configured as a pressing rod with different diameters in the form of coaxial cylinder in multiple sections, the pressing rod 111 can pass through one or more holes defined by the buckle body 12 and be perpendicular to the axis 120 of the buckle body 12.

[0053] In some embodiments, the pressing rod 111 specifically comprises a first section 111a and a second section 111b smaller in diameter than the first section 111a, an end cap 111c larger in diameter than the first section 111a is arranged on the first section 111a away from the second section 111b, the pressing rod 111 can pass through one or more holes defined by the body 12 to pass from the side, or in another example, pass into one or more holes defined on the bottom of the body 12 and perpendicular to the axis 120 of the body 12. Such a configuration can make the pressing rod 111 pass through the elastic member 112 and the lock tooth 113 and then smoothly perform the pressing operation, as shown by the arrow 110. Figure 2

[0054] The elastic member 112 can be sleeved on the first section 111a of the pressing rod 111 and located between the hole defined by the body 12 and the end cap 111c, and provide an elastic force to the pressing rod 111 to ensure that it can naturally return to the initial state under the action of the elastic force after pressing.

[0055] The elastic member 112 can be a spring, a spring sheet or other elastic member.

[0056] The lock tooth 113 is defined on the pressing rod 111 and does not slide in the axial direction of the pressing rod, and the lock tooth 113 passes through the tooth groove 123 of the body 12 and cooperates with the tooth 211 on the clasp 2, the teeth of the lock tooth 113 and the tooth 211 on the clasp 2 are both trapezoidal inclined teeth and are reversely matched.

[0057] In some embodiments, one end of the lock tooth 113 is provided with a hole matching the diameter of the second section 111b of the pressing rod 111, and the lock tooth 113 can be assembled on the pressing rod of the second section 111b. With such a configuration, the lock tooth 113 can abut against the side of the first section 111a, so that the lock tooth 113 and the pressing rod 111 do not slide relative to each other in the axial direction, or in another example, a shaft sleeve 114 is sleeved on the second section 111b of the pressing rod 111 to limit the displacement of the lock tooth 113 on the first section 111b of the pressing rod 111 in the axial direction. Such a configuration, when pressing, the pressing rod 111 drives the lock tooth 113 to move axially, and the pressing rod 111 drives the lock tooth 113 to return to the initial state under the elastic force of the elastic member 112. The clasp 2 has teeth cooperating with the lock tooth 113, which controls the axial movement of the pressing rod 111, and realizes the switching of the locked and unlocked states of the lock tooth 113 and the teeth on the clasp 2.

[0058] The shaft sleeve 114 can pass through the hole defined by the body 12 to pass from the side, and in order to prevent the shaft sleeve 114 from being detached from the second section 111b of the pressing rod 111, a rivet 115 or other fixing member that can block can be arranged at the tail end of the second section 111b, so as to couple the pressing rod 111 to the body 12. ​

[0059] The buckle body 12 is roughly rectangular with a double-layer structure and a certain curvature along its long axis to improve comfort when worn. The double-layer structure of the buckle body 12 forms an arc-shaped cavity 121 for accommodating the buckle head 2, which also has an arc-shaped structure and can slide within the cavity 121 of the buckle body 12.

[0060] The buckle 2 has a width that matches the cavity 121 of the buckle body 12, and the axis 210 of the buckle 2 is substantially coincident with the axis 120 of the buckle body 12, thereby improving the stability of the matching between the locking teeth 113 on the pressing rod 111 and the teeth 211 on the buckle 2.

[0061] In some embodiments, such as Figure 3 As shown, the width of the middle area of ​​the buckle 2 can be smaller than the width of both ends of the buckle, and a bone position 212 is provided on the buckle 2 on the same side as the tooth 211. Preferably, the bone positions 212 are symmetrically arranged about the axis 210 of the buckle 2. A groove 122 is opened at the bottom of the buckle body 12 corresponding to the bone position 212 of the buckle 2. With this configuration, the bone positions 212 on both sides of the axis 210 of the buckle 2 are restricted in the corresponding groove 122. When the buckle 2 slides in the cavity 121 of the buckle body 12, the stability of the matching between the locking tooth 113 on the pressing rod 111 and the tooth 211 on the buckle 2 is improved, while the weight of the buckle body 1 and the buckle 2 is reduced.

[0062] The locking tooth 113 on the pressing rod 111 passes through the tooth groove 123 of the buckle body 12 and engages with the tooth 211 on the buckle head 2. The tooth groove 123 restricts the locking tooth 113 to move only along the axial direction of the pressing rod 111. The teeth on the buckle head 2 are spaced apart along the axis 210 or axis 120, and the locking tooth 113 can move within the tooth groove 123 along the axial direction of the pressing rod 111.

[0063] In some embodiments, such as Figure 4 As shown, the teeth of the locking tooth 113 and the teeth 211 on the buckle 2 are both trapezoidal helical teeth that engage in opposite directions. Specifically, the teeth of the locking tooth 113 have an inclined surface I 113a, including an arc surface and an inclined surface, and on the opposite side of the inclined surface I 113a is a plane I 113b. By analogy, the teeth 211 on the buckle 2 have an inclined surface II 211a that can contact the inclined surface I 113a and a plane II 211b on the opposite side of the inclined surface II 211a. This configuration advantageously allows the plane I 113b of the locking tooth 113 and the plane II 211b of the teeth 211 on the buckle 2 to make surface contact, increasing the contact area; at the same time, it facilitates unidirectional sliding between the inclined surface I 113a of the locking tooth 113 and the inclined surface II 211a of the teeth 211 on the buckle 2. Figure 4As shown by the arrow, the lock tooth 113 is coupled to the body 12 of the belt through the tooth groove 123 and engages with the tooth 211 on the buckle head 2. The buckle head 2 moves from a to b according to the arrow direction. The inclined surface II 211a of the tooth 211 on the buckle head 2 exerts a force on the inclined surface I 113a of the lock tooth 113 in the axial direction of the pressing rod 111. Under the action of the force, the lock tooth 113 drives the pressing rod 111 to displace in the axial direction of the pressing rod 111. The buckle head 2 is provided with the teeth 211 spaced apart in the direction of the axis 120. The buckle head 2 can slide into the cavity 121 of the body 12 of the belt. In the sliding process, the lock tooth 113 is jointly acted on by the pressing rod 111 and the elastic member 112 sleeved on the pressing rod 111, so that the lock tooth 113 and the tooth 211 on the buckle head 2 are always kept in cooperation. When the buckle head 2 moves in the reverse direction of the arrow (from b to a), the flat surface II 211b of the tooth 211 on the buckle head 2 exerts a force on the flat surface I 113b of the lock tooth 113, which is perpendicular to the axial direction of the pressing rod 111. The lock tooth 113 does not displace, so as to realize the locking of the lock tooth 113 and the tooth 211 on the buckle head 2. When the pressing rod 111 is pressed, the pressing rod 111 drives the lock tooth 113 to axially move. When the lock tooth 113 is separated from the tooth 211 on the buckle head 2, the buckle head 2 can freely slide. When the pressing rod 111 returns to the initial state, the lock tooth 113 and the tooth 211 on the buckle head 2 are kept in cooperation again. In this way, the displacement of the buckle head 2 is adjusted to meet the different waist circumferences of the user.

[0064] The belt 1 can further comprise a pressing plate assembly 13, which comprises a pressing plate 131 and a pivot 132 pivotally connected with the pressing plate 131. The pressing plate 131 is pivotally connected with the hole defined on the bottom of the body 12 of the belt and is perpendicular to the axis 120 of the body 12 of the belt. The bottom of the pressing plate 131 is provided with sawteeth, and one end of the belt can be fixed between the pressing plate 131 and the bottom of the body 12 of the belt.

[0065] The buckle head 2 is provided with a fixing hole 213 on one side. The other end of the belt is fixed on the buckle head 2 through a fixing member 214, such as a snap hook, a snap pin, a rivet, etc.

[0066] It is known that the fixing hole 213 on the buckle head 2 can be replaced by a pressing plate assembly.

Claims

1. A press self-locking belt buckle, comprising a buckle body and a buckle head, the buckle body comprising a self-locking assembly arranged on the buckle body, the self-locking assembly cooperating with the buckle body to lock the buckle head; characterized in that, the self-locking assembly comprises a press rod, an elastic member and a locking tooth; the press rod is configured as a press rod in the form of a multi-section coaxial cylinder with different diameters, one end of the press rod with a large diameter is provided with an end cap, and the press rod can pass through one or more holes defined by the buckle body and be perpendicular to the axis of the buckle body; the elastic member is sleeved on the side of the press rod with a large diameter and between the hole defined by the buckle body and the end cap; the locking tooth is defined on the press rod and does not slide in the axial direction of the press rod; the locking tooth passes through the tooth groove of the buckle body and cooperates with the tooth on the buckle head, the teeth of the locking tooth and the tooth on the buckle head are both trapezoidal inclined teeth and are reversely matched, the tooth on the buckle head is arranged along the axial direction, and the locking tooth can move in the tooth groove along the axial direction of the press rod; the buckle body has a double-layer structure and has an arc along the long axis direction, and the buckle body has a cavity for accommodating the buckle head; the buckle head has the same arc and has a width matching the cavity of the buckle body.

2. The push-lock buckle of claim 1, wherein, the press rod comprises a first section and a second section with a smaller diameter than the first section, and the end cap is arranged on the first section away from the second section.

3. The push-lock buckle of claim 2, wherein, the press rod passes through one or more holes defined on the bottom of the buckle body and is perpendicular to the axis of the buckle body.

4. The push-lock buckle of claim 3, wherein, the locking tooth is assembled to the press rod of the second section, and the axial direction of the locking tooth on the first section of the press rod does not displace.

5. The push-lock buckle of claim 4, wherein, a shaft sleeve is sleeved on the second section, and the shaft sleeve passes through the hole defined by the buckle body.

6. The push-lock buckle of claim 5, wherein, the width of the middle region of the buckle head is smaller than the width of the two ends of the buckle head, and a bone site is arranged on the same side of the tooth on the buckle head, and a sliding groove corresponding to the bone site is formed on the bottom of the buckle body, and the bone site is limited in the corresponding sliding groove.

7. The push-lock buckle of claim 6, wherein, the locking tooth has an inclined surface I and a plane I on the opposite side of the inclined surface I, the tooth on the buckle head has an inclined surface II and a plane II on the opposite side of the inclined surface II; the plane I of the locking tooth can be in surface contact with the plane II of the tooth on the buckle head, the inclined surface I of the locking tooth is in contact with the inclined surface II of the tooth on the buckle head; under the action of the elastic member, the press rod makes the locking tooth and the tooth on the buckle head always cooperate.

8. The push-lock buckle of claim 7, wherein, the buckle body further comprises a pressing plate assembly, the pressing plate assembly comprises a pressing plate and a pivot shaft pivotally connected with the pressing plate, the pressing plate is pivotally connected with the hole defined on the bottom of the buckle body and is perpendicular to the axis of the buckle body; the bottom of the pressing plate is provided with a sawtooth.

9. The push-lock buckle of claim 8, wherein, a fixing hole for fixing a belt is formed on one side of the buckle head.

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