Elastic bolt structure

Abstract

The utility model relates to the technical field of bolts, in particular to an elastic bolt structure which comprises a bolt base and a shell which are integrally connected, a lock cavity is formed in the middle of the outer side of the shell, and two movable grooves communicated with the interior of the lock cavity and the interior of the bolt base respectively are formed in the shell. A lock plate located in the lock cavity is movably connected in each of the two movable grooves, an adjusting plate extending into the bolt seat is fixedly connected to one end of each of the two lock plates, a first spring is fixedly connected between the top end of each of the two adjusting plates and the top end of each of the two movable grooves, and the first springs are used as auxiliary parts for rebounding of the adjusting plates and the first connecting plates; the arrangement of the two first springs and the second spring not only helps to enhance the rapid rebound effect of the first connecting plate and improve the flexibility of the bolt structure, but also enables the stretching and retracting directions of the first connecting plate, the second connecting plate and the first spring to be in a relative straight line and not to be twisted, so that the service life of the bolt structure can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bolt, specifically is a elastic bolt structure. BACKGROUND

[0002] The bolt is often installed on some non-burglary doors as a simple door lock, the elastic bolt generally refers to the structure that the bolt is automatically locked when the door is closed when being installed on the door, the elastic bolt structure generally comprises the bolt seat with elastic locking parts installed on the door frame and the bolt rod installed on the door body, the elastic locking parts inside the bolt seat play a major automatic closing role, but the elastic locking parts of the existing bolt seat are generally composed of a movable rod and a spring sleeved on the rod, the spring of the elastic locking parts deflects and moves in multiple angles and directions along with the rod, directly affecting the service life and elastic force state of the spring, and the setting of only one spring easily causes the insufficient rebound force of the elastic locking parts. SUMMARY

[0003] In view of the defects of the prior art, the utility model provides an elastic bolt structure, solves the problems of short service life of the spring and insufficient rebound force of the existing bolt structure.

[0004] To achieve the above object, the utility model provides the following technical scheme: an elastic bolt structure, including integrally connected bolt seat and shell, the outside middle part position of shell is equipped with a lock cavity, and the outside of lock cavity is located below the lock cavity and is provided with an unlocking assembly, the inside of shell is equipped with two movable grooves that are communicated with the inside of lock cavity and bolt seat respectively, two movable grooves are respectively movably connected with a lock plate in the lock cavity, one end of two lock plates is fixedly connected with an adjusting plate extending to the inside of bolt seat respectively, the top end of two adjusting plates and the top end of two movable grooves are all fixedly connected with a first spring, which is used as the auxiliary part of the rebound of adjusting plate and first connecting plate.

[0005] As a preferred, the section of the lock cavity is a "V" type structure, the bolt seat is installed on the door frame through bolts, and a pin rod seat is arranged on the door body in parallel on one side of the bolt seat, a pin rod is fixedly connected on the pin rod seat, and the pin rod penetrates between the lock cavity and the lock plate to form a closed bolt.

[0006] As a preferred, the two lock plates are arc structures, one end of the two adjusting plates extends to the cavity of the bolt seat and is movably connected with a first connecting plate respectively, and the two first connecting plates are vertically arranged and have the same height.

[0007] As a preferred, the top end of the two first connecting plates is fixedly connected with a second connecting plate through bolts, the bottom end center position of the second connecting plate is movably connected with a first connecting rod, and the bottom end of the first connecting rod is movably connected with a second connecting rod.

[0008] As preferred, an inside of the bolt seat is fixedly provided with a limiting plate, the limiting plate is located directly below and parallel to the second connecting plate, an inside of the limiting plate is provided with a limiting slot penetrating up and down, the first connecting rod vertically penetrates the limiting slot of the limiting plate, and a width of the first connecting rod is smaller than a length of the limiting slot.

[0009] As preferred, a second spring sleeved outside the first connecting rod is fixedly connected between the second connecting plate and the limiting plate, the first connecting rod and the second connecting rod are connected through a rotary hinge, the rotary hinge comprises a shaft block movably connected to a top end of the second connecting rod, and comprises a clamping block movably connected to a bottom end of the first connecting rod, and the shaft block and the clamping block are rotationally connected.

[0010] As preferred, an inside of the bolt seat is further provided with a lock disc, the lock disc and the lock cylinder of the unlocking assembly are fixedly connected through a shaft rod, a part of an outer circular surface of the lock disc is provided with a cavity, and a bottom end of the second connecting rod is movably connected in the cavity of the lock disc.

[0011] Compared with the prior art, the elastic bolt structure has the following beneficial effects:

[0012] When the door is closed, the pin rod contacts the two lock plates and causes the two lock plates to deflect inward at the same time, at this time, the adjusting plate deflects, thereby pressing the first spring at the top end of the adjusting plate and causing the first spring to shrink, at the same time, the second connecting plate indirectly connected with the lock plate also deflects and drives the second spring to stretch, the pin rod is clamped into the lock cavity between the lock plates along the gap generated between the bottom of the lock plate and the lock cavity, and finally the adjusting plate and the lock plate are restored to the original position under the elastic force of the two first springs and the second spring, so that the effect of automatic locking when the door is closed is achieved.

[0013] The arrangement of the two first springs and the second spring not only helps to enhance the rapid rebound effect of the first connecting plate and improve the flexibility of the bolt structure, but also the stretching and shrinking directions of the three are relatively straight lines and cannot be twisted, so that the service life of the bolt structure can be prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings described herein are used to provide further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0015] Figure 1 It is a bolt seat and pin rod structure schematic view of the present application;

[0016] Figure 2 It is a bolt seat internal partial structure cutaway view of the present application;

[0017] Figure 3The utility model discloses Figure 2 a side view of the utility model

[0018] Figure 4 a front view of the utility model Figure 1 a front view of the utility model

[0019] Figure 5 a side view of the utility model Figure 1 a side view of the utility model

[0020] Figure 6 a back view of the utility model and the internal structure enlarged view of the bolt seat

[0021] Figure 7 the utility model bolt seat and the internal lock plate split diagram

[0022] Mark explanation:

[0023] 1, bolt seat, 11, limiting plate, 2, shell, 21, lock cavity, 211, movable groove, 22, unlocking assembly, 3, lock plate, 31, adjusting plate, 32, first spring, 33, first connecting plate, 4, second connecting plate, 41, first connecting rod, 411, second spring, 42, second connecting rod, 421, shaft block, 422, clamping block, 43, lock disc, 5, pin rod seat, 51, pin rod Specific implementation

[0024] The implementation of the present application will be described in detail below with the help of the drawings and examples, so that the realization process of the present application can be fully understood and implemented, and the technical problems can be solved by applying technical means and achieving technical effects.

[0025] As Figures 1-7The utility model discloses a spring bolt structure, including the integrated connection of bolt seat 1 and shell 2, the outside middle part position of shell 2 is seted with a lock cavity 21, and the outside of lock cavity 21 is seted with a unlocking assembly 22 below lock cavity 21, the section of lock cavity 21 is " V " type structure, the inside of shell 2 is seted with two movable grooves 211 with the inside of lock cavity 21 and bolt seat 1 is communicated respectively, and one lock plate 3 in lock cavity 21 is connected in two movable grooves 211 respectively, bolt seat 1 is installed on the door frame through bolt, and the side of bolt seat 1 is seted with a pin rod seat 5 installed on the door body, and the pin rod seat 5 is fixedly connected with a pin rod 51, and the pin rod 51 is formed closed bolt by penetrating between lock cavity 21 and lock plate 3, when pin rod 51 is clamped in lock cavity 21, the door body is closed and makes pin rod 51 gradually close to bolt seat 1, until pin rod 51 and two movable lock plate 3 contact, and the deflection of two lock plate 3 is caused simultaneously by continuous force, at this moment, pin rod 51 is clamped between lock cavity 21 and lock plate 3 along the gap between the bottom of lock plate 3 and lock cavity 21, and then lock plate 3 is automatically rebounded to the original position;

[0026] Further, one end of two lock plate 3 is fixedly connected with an adjusting plate 31 extending to the inside of bolt seat 1, and a first spring 32 is fixedly connected between the top end of two adjusting plate 31 and the top end of two movable groove 211, which is used as the auxiliary part of the rebound of adjusting plate 31 and lock plate 3, when lock plate 3 is deflected by extrusion of external force, adjusting plate 31 is deflected, and then the first spring 32 at the top end of adjusting plate 31 is extruded and shrinks, when the external force applied on lock plate 3 disappears, adjusting plate 31 and lock plate 3 are restored to the original position under the elastic force of first spring 32;

[0027] Further, two lock plate 3 are arc structures, which are convenient for adapting to the cylindrical pin rod 51, one end of two adjusting plate 31 extends to the cavity of bolt seat 1 and is movably connected with a first connecting plate 33, two first connecting plate 33 are vertically arranged and have consistent height, the top end of two first connecting plate 33 is fixedly connected with a second connecting plate 4 through bolt, the bottom end center of second connecting plate 4 is movably connected with a first connecting rod 41, the bottom end of first connecting rod 41 is movably connected with a second connecting rod 42, when pin rod 51 is clamped in lock cavity 21, two lock plate 3 are deflected, and further the first connecting plate 33 and second connecting plate 4 are moved up and down by adjusting plate 31, and the first connecting rod 41 and second connecting rod 42 are moved by second connecting plate 4;

[0028] The inside of the latch seat 1 is fixedly provided with a limiting plate 11, the limiting plate 11 is located directly below and parallel to the second connecting plate 4, the inside of the limiting plate 11 is provided with a limiting groove penetrating up and down, the first connecting rod 41 vertically penetrates the limiting groove of the limiting plate 11, the width of the first connecting rod 41 is smaller than the length of the limiting groove, the limiting plate 11 has a certain limiting function on the first connecting rod 41, preventing the first connecting rod 41 from shaking and deviating;

[0029] Further, the second connecting plate 4 and the limiting plate 11 are fixedly connected with a second spring 411 sleeved outside the first connecting rod 41, the first connecting rod 41 and the second connecting rod 42 are connected through a rotary hinge, the rotary hinge includes a shaft block 421 movably connected to the top end of the second connecting rod 42, and a clamping block 422 movably connected to the bottom end of the first connecting rod 41, the shaft block 421 and the clamping block 422 are rotatably connected, a second spring 411 is arranged between the second connecting plate 4 and the limiting plate 11, which also has an auxiliary rebound effect, when the second connecting plate 4 moves upward, it is subjected to an upward thrust, at the same time, the second connecting plate 4 is subjected to a downward pulling force by the elastic force of the second spring 411, so that when the upward thrust of the second connecting plate 4 disappears, the second connecting plate 4 can immediately return to the original position, further enhancing the rebound effect of the lock plate 3;

[0030] Further, the inside of the latch seat 1 is further provided with a lock disc 43, the lock disc 43 and the lock cylinder of the unlocking assembly 22 are fixedly connected through a shaft, a part of the outer circular surface of the lock disc 43 is provided with a cavity, the bottom end of the second connecting rod 42 is movably connected in the cavity of the lock disc 43, when the pin rod 51 clamped in the lock cavity 21 needs to be taken out, a key matched with the unlocking assembly 22 is inserted into the lock cylinder, the key is rotated to drive the lock cylinder to rotate and drive the lock disc 43 to rotate synchronously through the shaft, in the rotating process of the lock disc 43, the first connecting rod 41 is moved through the second connecting rod 42 movably connected thereto, the second connecting rod 42 pushes the first connecting rod 41 upward, the first connecting rod 41 further drives the second connecting plate 4, the first connecting plate 33 and the adjusting plate 31 to lift one end of the lock plate 3 upward, so that the lock plate 3 is deflected along the top end, at this time, a proper gap is formed between the bottom end of the lock plate 3 and the lock cavity 21 for taking out the pin rod 51.

[0031] When the above embodiment works, when the door is closed, the pin rod 51 gradually approaches the latch seat 1, until the pin rod 51 contacts with the two movable lock plates 3, and continuously applies force to make the two lock plates 3 deflect inward at the same time, the adjusting plate 31 deflects accordingly, and then presses the first spring 32 at the top end of the adjusting plate 31 and makes the first spring 32 shrink, at this time, the pin rod 51 is clamped between the lock cavity 21 and the lock plate 3 along the gap between the bottom of the lock plate 3 and the lock cavity 21, when the external force applied to the lock plate 3 disappears, the adjusting plate 31 and the lock plate 3 return to the original position under the elastic force of the first spring 32, achieving the effect of automatic locking when the door is closed;

[0032] When the door is opened, a key adapted to the lock opening assembly 22 is inserted into the lock cylinder, the key is rotated to drive the lock cylinder to rotate and the shaft rod is driven to rotate synchronously with the lock disc 43, the first connecting rod 41 is moved by the second connecting rod 42 movably connected with the lock disc 43 during the rotation of the lock disc 43, the second connecting rod 42 pushes the first connecting rod 41 upward, the first connecting rod 41 further drives the second connecting plate 4, the first connecting plate 33 and the adjusting plate 31 to lift the one end of the lock plate 3, and then the lock plate 3 is deflected along the top end, at this time, a proper gap is formed between the bottom end of the lock plate 3 and the lock cavity 21 for taking out the pin rod 51, a second spring 411 is arranged between the second connecting plate 4 and the limiting plate 11 to play the effect of strengthening the auxiliary rebound, that is, when the second connecting plate 4 is moved upward, the second connecting plate 4 is subjected to the upward thrust, at the same time, the second connecting plate 4 is subjected to the downward pulling force by the elastic force of the second spring 411, so that when the upward thrust of the second connecting plate 4 disappears, the second connecting plate 4 can immediately return to the original position, and the rebound effect of the lock plate 3 is further strengthened.

[0033] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A resilient latch structure comprising a latch housing (1) and a housing (2) connected integrally, characterized in that: The outer middle position of the shell (2) is provided with a lock cavity (21), and the outside of the lock cavity (21) is provided with a lock opening assembly (22) below the lock cavity (21). The inside of the shell (2) is provided with two movable grooves (211) communicating with the inside of the lock cavity (21) and the bolt seat (1) respectively. Two lock plates (3) are movably connected in the lock cavity (21). One end of the two lock plates (3) is fixedly connected with an adjusting plate (31) extending into the inside of the bolt seat (1). A first spring (32) is fixedly connected between the top end of the two adjusting plates (31) and the top end of the two movable grooves (211), which is used as an auxiliary member for the rebound of the adjusting plate (31) and the first connecting plate (33).

2. The resilient latch structure of claim 1, wherein: The cross section of the lock cavity (21) is in "V" type structure. The bolt seat (1) is installed on the door frame by bolts. A pin rod seat (5) is arranged on one side of the bolt seat (1) and parallel to the bolt seat (1). A pin rod (51) is fixedly connected to the pin rod seat (5). The pin rod (51) penetrates between the lock cavity (21) and the lock plate (3) to form a closed bolt.

3. The resilient latch structure of claim 1, wherein: The two lock plates (3) are in arc shape. One end of the two adjusting plates (31) extends into the cavity of the bolt seat (1) and is movably connected with a first connecting plate (33). The two first connecting plates (33) are vertically arranged and have the same height.

4. The resilient latch structure of claim 3, wherein: The top end of the two first connecting plates (33) is fixedly connected with a second connecting plate (4) by bolts. A first connecting rod (41) is movably connected to the bottom end of the second connecting plate (4). A second connecting rod (42) is movably connected to the bottom end of the first connecting rod (41).

5. A resilient latch structure according to claim 4, wherein: A limiting plate (11) is fixedly arranged in the inside of the bolt seat (1). The limiting plate (11) is located directly below and parallel to the second connecting plate (4). A limiting groove is formed in the inside of the limiting plate (11) and penetrates the limiting plate (11) from top to bottom. The first connecting rod (41) vertically penetrates the limiting groove of the limiting plate (11). The width of the first connecting rod (41) is smaller than the length of the limiting groove.

6. A resilient latch structure according to claim 5, wherein: A second spring (411) is fixedly connected between the second connecting plate (4) and the limiting plate (11) and surrounds the outside of the first connecting rod (41). The first connecting rod (41) and the second connecting rod (42) are connected by a rotary hinge. The rotary hinge includes an axle block (421) movably connected to the top end of the second connecting rod (42) and a clamping block (422) movably connected to the bottom end of the first connecting rod (41). The axle block (421) and the clamping block (422) are rotatably connected.

7. The resilient latch structure of claim 1, wherein: A lock disc (43) is further arranged in the inside of the bolt seat (1). The lock disc (43) and the lock cylinder of the lock opening assembly (22) are fixedly connected by a shaft rod. A part of the outer circular surface of the lock disc (43) is provided with a cavity. The bottom end of the second connecting rod (42) is movably connected in the cavity of the lock disc (43).

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