Self-locking device

Abstract

The utility model relates to a locking device, in particular to a self-locking device. A self-locking device comprises a base, end plates are fixed to the two ends of the base through bolts, the interior of the base is hollow, a bottom plate with a through groove is fixed to the bottom of the base, the lower end of a pressing block penetrates through the bottom plate, the upper end of the pressing block is open, connecting rods are movably installed on the two sides of the opening through shafts, and the upper ends of the connecting rods and sliding blocks are movably installed through shafts. A top plate and side plates installed on the two sides of the top plate are fixed to the upper end of the base, a first spring is installed between the pressing block and the top plate, and a second spring is installed between the sliding block and the end. According to the self-locking device, the first spring provides pressure for the pressing block, the spring bolt mechanism installed on the pressing block can conduct locking operation, the sliding block can drive the connecting rod to move after being pressed, then the pressing block moves upwards, and unlocking is completed.

Description

Technical Field

[0001] The utility model relates to a locking device, in particular to a self-locking device. Background Art

[0002] During the operation of the equipment, a telescopic locking mechanism is required. The current mechanisms are all manually operated. The lock is easy to open after being misoperated, causing equipment operation errors. This requires a self-locking device, and the current self-locking device requires additional power to lock, which cannot achieve the purpose of automatic locking.

[0003] In view of the above-mentioned defects, the designer has actively conducted research and innovation in order to create a self-locking device to make it more valuable for industrial use. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a self-locking device.

[0005] The utility model provides a self-locking device, including a base, both ends of the base are fixed with end plates by bolts, the interior of the base is hollow, the bottom of the base is fixed with a bottom plate with a through groove, the lower end of the pressure block passes through the bottom plate, the upper end of the pressure block is open, connecting rods are movably installed on both sides of the opening through shafts, the upper end of the connecting rods is movably installed with a slider through the shaft, the upper end of the base is fixed with a top plate and side plates installed on both sides of the top plate, a first spring is installed between the pressure block and the top plate, and a second spring is installed between the slider and the end.

[0006] In this self-locking device, the first spring provides pressure for the pressure block, and the lock tongue mechanism installed on the pressure block can perform the locking operation. After the slider is pressed, it can drive the connecting rod to move, thereby completing the upward movement of the pressure block and completing the unlocking.

[0007] Furthermore, a groove for the slider to move is provided between the top plate and the side plates.

[0008] The slider can move in the slot to facilitate the upward movement of the pressing block.

[0009] Furthermore, there are grooves on the outer side of the slider and the inner side of the end plate for limiting the second spring.

[0010] The grooves on the slider and the end plate are used to place the second spring, providing limits at both ends of the second spring to prevent the second spring from falling.

[0011] Furthermore, a screw hole is provided through the middle of the pressing block, a first bolt is screwed into the screw hole, a lower top block is movably mounted on the top end of the first bolt, and the lower top block contacts the lower end of the first spring.

[0012] After the first bolt is rotated, it can drive the lower tightening block to move upward, compress the first spring, and increase the pressure of the first spring to adjust the pressure of the pressure.

[0013] Furthermore, a screw hole is provided through the top plate, and a second bolt is screwed into the screw hole. An upper top block is movably mounted on the top of the second bolt, and the upper top block contacts the upper end of the first spring.

[0014] The second bolt has the same purpose as the first bolt when adjusting, which is to adjust the stroke of the first spring, to adjust the elastic force of the first spring, and then to adjust the force applied to the pressure block to meet the usage requirements in different situations.

[0015] Through the above scheme, the present invention has at least the following advantages: the pressure block of this self-locking device is used to install the locking mechanism, and the pressure block is provided with pressure by the first spring. This pressure is adjustable, thereby achieving the purpose of adjusting the pressure on the pressure block, and facilitating locking operations under different locking conditions. The pressure block can be moved under the drive of the slider and can be used for unlocking operations.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate a certain embodiment of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This utility model Figure 1 Schematic diagram of the structure without the base;

[0020] Figure 3 This utility model Figure 1 sectional view of

[0021] Figure 4 This utility model Figure 2 A partial schematic diagram of .

[0022] In the figure, 1 is the base, 2 is the end plate, 3 is the bottom plate, 4 is the pressure block, 5 is the connecting rod, 6 is the slider, 7 is the top plate, 8 is the side plate, 9 is the first spring, 10 is the second spring, 11 is the first bolt, 12 is the lower top block, 13 is the second bolt, and 14 is the upper top block. DETAILED DESCRIPTION

[0023] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] See also Figure 1-Figure 4 When the cam 1 is unlocked, the cam 1 is unlocked, and the locking cam 1 is unlocked.

[0025] The second spring 10 installed between the outer side of the slider 6 and the end plate 2 is in a compressed state, always providing an inward force to the slider 6. When performing the unlocking operation, an outward force needs to be applied to the slider 6. After unlocking, the second spring 10 provides a reset force for the slider 6.

[0026] The first spring 9 and the second spring 10 cooperate to provide sufficient locking pressure for the pressure block 4 .

[0027] In order to facilitate the movement of the slider 6, a moving groove for the slider 6 is provided on the top plate 7 and the side plate 8 to provide guidance and limit for the movement of the slider 6.

[0028] There are grooves on the slider 6 and the end plate 2. The grooves are used to limit the two ends of the second spring 10, making it easier to install the second spring 10.

[0029] See also Figure 3 The middle part of the pressure block 4 is screwed into the first bolt 11. When the first bolt 11 is rotated, the lower top block 12 can be driven to move upward. The middle part of the lower top block 12 can be stuck into the first spring 9. When the first bolt 11 is rotated, the lower top block 12 moves upward to compress the first spring 9, thereby increasing the elastic force of the first spring 9.

[0030] The second bolt 13 is screwed into the screw hole on the top plate 7. When the second bolt 13 rotates, it can drive the upper top block 14 at its top to move up and down. The middle part of the upper top block 14 can be stuck into the first spring 9. When the second bolt 13 is rotated, the upper top block 14 moves downward to compress the first spring 9, thereby increasing the elastic force of the first spring 9.

[0031] By adjusting the first bolt 11 and the second bolt 13 , the locking pressure of the entire self-locking device is achieved to meet the adjustment requirements.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0033] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A self-locking device comprising a base (1), with end plates (2) fixed to both ends of the base (1) by bolts, characterized in that: The interior of the base (1) is hollow, and a bottom plate (3) with a through groove is fixed to the bottom of the base (1), the lower end of the pressure block (4) passes through the bottom plate (3), the upper end of the pressure block (4) is open, and connecting rods (5) are movably installed on both sides of the opening through shafts, and the upper end of the connecting rod (5) is movably installed through the shaft and the slider (6), the upper end of the base (1) is fixed with a top plate (7) and side plates (8) installed on both sides of the top plate (7), a first spring (9) is installed between the pressure block (4) and the top plate (7), and a second spring (10) is installed between the slider (6) and the end plate (2).

2. A self-locking device according to claim 1, characterized in that: There is a groove between the top plate (7) and the side plate (8) for the slider (6) to move.

3. A self-locking device according to claim 2, characterized in that: The outer side of the slider (6) and the inner side of the end plate (2) are provided with grooves for limiting the second spring (10).

4. A self-locking device according to claim 3, characterized in that: A screw hole is provided in the middle of the pressing block (4), and a first bolt (11) is screwed into the screw hole. A lower top block (12) is movably mounted on the top of the first bolt (11), and the lower top block (12) contacts the lower end of the first spring (9).

5. A self-locking device according to claim 4, characterized in that: A screw hole is provided through the top plate (7), and a second bolt (13) is screwed into the screw hole. An upper top block (14) is movably mounted on the top of the second bolt (13), and the upper top block (14) contacts the upper end of the first spring (9).

Images