Quick-release spring bar

Abstract

The utility model discloses a quick release spring bar, which belongs to the technical field of watch parts and comprises a spring bar tube, a mounting rack is fixedly mounted at the center of the top of the surface of the spring bar tube, a pressing block is slidably mounted at the top in the mounting rack, and a limiting snap ring is fixedly mounted at the bottom of the pressing block. According to the quick-release spring bar, the two groups of trapezoidal blocks are pushed towards the two ends of the spring bar tube, so that the trapezoidal blocks drive the connecting plates to move towards the two ends of the spring bar tube and drive the moving blocks and the fixed insertion rods to move until the fixed insertion rods retract into the through holes, and the spring bar tube is mounted at a specified position of a watch; the pressing block is loosened, the trapezoidal clamping plate is jacked up under the action of rebounding of the jacking spring, meanwhile, the two sets of reset springs rebound to jack the trapezoidal block to the two sides of the bottom of the trapezoidal clamping plate, and therefore the trapezoidal block drives the connecting plate and the moving block to move towards the two ends of the spring bar tube till the fixed inserting rod is jacked out of the through hole, and the spring bar tube is conveniently disassembled or assembled.

Description

Technical Field

[0001] The utility model belongs to the technical field of watch parts, and particularly relates to a quick-release spring bar. Background Art

[0002] As a small metal part used to connect the watch band and the watch dial in a watch, the spring bar usually consists of a circular straight-through part and spring bar heads at both ends, with a spring in the middle. The design of the spring bar enables the watch band to be easily installed and removed while maintaining the stability of the watch. In the maintenance and repair of watches, the spring bar is an important component. Due to the small size of the spring bar, it is easily damaged, so it sometimes needs to be replaced separately.

[0003] When disassembling and installing the existing spring bar, due to the small size of the spring bar, special tools are required to assist in disassembly or installation, which is not convenient and fast enough for the disassembly and installation of the spring bar. At the same time, during the disassembly and installation process, if the operation is improper, it is easy to damage the spring bar or the watch. Therefore, improvements are needed. Content of the Utility Model

[0004] In order to overcome the above defects, the utility model provides a quick-release spring bar, which solves the problem that when disassembling and installing the existing spring bar, due to the small size of the spring bar, special tools are required to assist in disassembly or installation, and the disassembly and installation of the spring bar are not convenient and fast enough.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A quick-release spring bar includes a spring bar tube. At the central position of the top surface of the spring bar tube, an installation frame is fixedly installed. Inside the top of the installation frame, a pressing block is slidably installed. At the bottom of the pressing block, a limiting snap ring is fixedly installed. At the bottom of the limiting snap ring, a trapezoidal clamping plate is fixedly installed. At the central position of the bottom of the trapezoidal clamping plate, a rectangular groove is provided. Between the top of the rectangular groove and the inner wall of the spring bar tube, a jacking spring is provided;

[0006] At both ends inside the spring bar tube, fixed end blocks are symmetrically and fixedly installed. At both ends of the inner wall of the spring bar tube, moving blocks are symmetrically and slidably installed. At one end of the moving block close to the fixed end block, a fixed insertion rod is fixedly installed. On the side of the moving block away from the fixed insertion rod, a connecting plate is fixedly installed, and the two groups of connecting plates are located on both sides of the trapezoidal clamping plate. At the end of the connecting plate away from the moving block, a trapezoidal block is fixedly installed across the trapezoidal clamping plate.

[0007] As a further scheme of the utility model: A through hole is provided through the fixed end block, and the fixed insertion rod passes through the through hole and extends to the outside of the spring bar tube.

[0008] As a further solution of the present utility model: A reset spring is provided between the moving block and the trapezoidal block on the same side of the trapezoidal clamping plate inside the spring bar, and an installation hole is provided on the side of the trapezoidal block away from the connecting plate, and one end of the reset spring is located inside the installation hole.

[0009] As a further solution of the present utility model: The trapezoidal block is semicircular in shape, and two groups of trapezoidal blocks are symmetrically located at the bottoms on both sides of the trapezoidal clamping plate, and the inclined surfaces on both sides of the bottom of the trapezoidal clamping plate are in close contact with the inclined surfaces on the side of the trapezoidal block close to the connecting plate.

[0010] As a further solution of the present utility model: A limiting chute is provided through the inside of the mounting bracket, and the limiting chute communicates with the inside of the spring bar, and the position of the surface of the limiting snap ring corresponds to and has the same shape as the limiting chute.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the connecting plate, trapezoidal block, reset spring, trapezoidal clamping plate and jacking spring, pressing down the pressing block causes the trapezoidal clamping plate to move downward between the two trapezoidal blocks, pushing the two trapezoidal blocks towards both ends of the spring bar, causing the trapezoidal block to drive the connecting plate to move towards both ends of the spring bar, driving the moving block and the fixed insertion rod to move. Until the fixed insertion rod retracts into the through hole, after installing the spring bar at the designated position of the watch, release the pressing block, and the trapezoidal clamping plate is jacked up under the action of the rebound of the jacking spring. At the same time, the two reset springs rebound to push the trapezoidal block towards both sides of the bottom of the trapezoidal clamping plate, so that the trapezoidal block drives the connecting plate and the moving block to move towards both ends of the spring bar until the fixed insertion rod is pushed out of the through hole, which is convenient for disassembling or installing the spring bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the sectional structure schematic diagram of the present utility model;

[0013] Figure 2 is the sectional structure schematic diagram of the spring bar, fixed end block and mounting bracket of the present utility model;

[0014] Figure 3 is the sectional structure schematic diagram of the moving block, connecting plate and trapezoidal block of the present utility model;

[0015] Figure 4 is the structural schematic diagram of the pressing block, limiting snap ring and trapezoidal clamping plate of the present utility model;

[0016] In the figure: 1. Spring bar; 2. Fixed end block; 3. Through hole; 4. Mounting bracket; 5. Limiting chute; 6. Moving block; 7. Fixed insertion rod; 8. Connecting plate; 9. Trapezoidal block; 10. Installation hole; 11. Reset spring; 12. Pressing block; 13. Limiting snap ring; 14. Trapezoidal clamping plate; 15. Rectangular groove; 16. Jacking spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0018] As Figures 1-4 shown, the present utility model provides a technical solution: a quick-release spring bar, including a spring bar tube 1. At the central position of the top surface of the spring bar tube 1, a mounting frame 4 is fixedly installed. Inside the top of the mounting frame 4, a pressing block 12 is slidably installed. At the bottom of the pressing block 12, a limiting clamping ring 13 is fixedly installed. A limiting sliding groove 5 is provided through the inside of the mounting frame 4, and the limiting sliding groove 5 communicates with the inside of the spring bar tube 1. The surface of the limiting clamping ring 13 corresponds to the position of the limiting sliding groove 5 and has the same shape. By providing the limiting sliding groove 5 and the limiting clamping ring 13, when the top spring 16 rebounds to push the top of the pressing block 12 out of the mounting frame 4, the limiting clamping ring 13 moves upward inside the limiting sliding groove 5 until the limiting clamping ring 13 tightly adheres to and is stuck to the inner top of the limiting sliding groove 5, ensuring that the pressing block 12 will not be pushed out of the mounting frame 4.

[0019] At the bottom of the limiting clamping ring 13, a trapezoidal clamping plate 14 is fixedly installed. At the central position of the bottom of the trapezoidal clamping plate 14, a rectangular groove 15 is provided. Between the inner top of the rectangular groove 15 and the inner wall of the spring bar tube 1, a top spring 16 is provided. Due to the provision of the top spring 16, when the pressing block 12 is released and under the action of the rebound of the top spring 16, the trapezoidal clamping plate 14 is pushed upward away from the two trapezoidal blocks 9, enabling the trapezoidal blocks 9 to drive the connecting plate 8 to move inside the spring bar tube 1;

[0020] At both ends of the inside of the spring bar tube 1, fixed end blocks 2 are symmetrically and fixedly installed. Through holes 3 are provided through the fixed end blocks 2. A fixed insertion rod 7 passes through the through holes 3 and extends to the outside of the spring bar tube 1. By providing the fixed end blocks 2, when the fixed insertion rod 7 extends out or retracts into the through holes 3, the moving block 6 approaches or moves away from the fixed end block 2, thereby ensuring that the moving block 6 will not fall off from both ends of the spring bar tube 1.

[0021] At both ends of the inner wall of the spring bar tube 1, moving blocks 6 are symmetrically and slidably installed. At one end of the moving block 6 close to the fixed end block 2, a fixed insertion rod 7 is fixedly installed. At the side of the moving block 6 away from the fixed insertion rod 7, a connecting plate 8 is fixedly installed, and the two connecting plates 8 are located on both sides of the trapezoidal clamping plate 14. At the end of the connecting plate 8 away from the moving block 6, a trapezoidal block 9 is fixedly installed across the trapezoidal clamping plate 14. The trapezoidal block 9 is semicircular in shape, and the two trapezoidal blocks 9 are symmetrically located at the bottom on both sides of the trapezoidal clamping plate 14. The inclined surfaces on both sides of the bottom of the trapezoidal clamping plate 14 are in close contact with the inclined surfaces on the side of the trapezoidal block 9 close to the connecting plate 8. Due to the provision of the trapezoidal block 9 and the trapezoidal clamping plate 14, by controlling the trapezoidal clamping plate 14 to move downward between the two trapezoidal blocks 9, the two trapezoidal blocks 9 are pushed towards both ends of the spring bar tube 1, so that the trapezoidal blocks 9 drive the connecting plate 8 to move inside the spring bar tube 1, pulling the fixed insertion rod 7 to retract into the through holes 3.

[0022] A return spring 11 is provided between the moving block 6 and the trapezoidal block 9 on the same side of the inside of the spring bar 1. An installation hole 10 is provided on the side of the trapezoidal block 9 away from the connection plate 8, and one end of the return spring 11 is located inside the installation hole 10. By providing the return spring 11, after releasing the pressing block 12, the trapezoidal clamping plate 14 is jacked up by the resilience of the jacking spring 16. At the same time, the two return springs 11 rebound to jack the two trapezoidal blocks 9 towards the trapezoidal clamping plate 14, so that the inclined surfaces of the trapezoidal blocks 9 can be tightly attached to the inclined surfaces at the bottoms of both sides of the trapezoidal clamping plate 14.

[0023] The working principle of the present utility model is as follows:

[0024] Push the extrusion pressing block 12 downward to retract it into the installation frame 4, so that the trapezoidal clamping plate 14 moves downward between the two trapezoidal blocks 9, squeezing the jacking spring 16 to deform. At the same time, the inclined surfaces at the bottoms of both sides of the trapezoidal clamping plate 14 are in close contact with the inclined surfaces of the two trapezoidal blocks 9, thereby jacking the two trapezoidal blocks 9 towards both ends of the spring bar 1, causing the trapezoidal blocks 9 to drive the connection plate 8 and the moving block 6 to slide at both ends inside the spring bar 1 until the fixed insertion rod 7 retracts into the through hole 3. After moving the spring bar 1 to the corresponding installation position of the watch, release the pressing block 12. The trapezoidal clamping plate 14 is jacked up away from the trapezoidal block 9 by the resilience of the jacking spring 16 and is snapped into the limit sliding groove 5. At the same time, under the resilience of the return spring 11, the two trapezoidal blocks 9 are jacked towards the trapezoidal clamping plate 14, driving the connection plate 8 and the moving block 6 to move towards both ends inside the spring bar 1 until the fixed insertion rod 7 pops out of the through hole 3, thus facilitating the disassembly and installation of the spring bar 1.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0026] The above has described the preferred embodiments of this patent in detail, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of this patent.

Claims

1. A quick-release earplug, comprising an earplug tube (1), characterized in that: A mounting frame (4) is fixedly mounted at the top center position of the surface of the ear tube (1), a pressing block (12) is slidably mounted at the top of the mounting frame (4), a limiting clamping ring (13) is fixedly mounted at the bottom of the pressing block (12), a trapezoidal clamping plate (14) is fixedly mounted at the bottom of the limiting clamping ring (13), a rectangular groove (15) is provided at the center position of the bottom of the trapezoidal clamping plate (14), and a lifting spring (16) is provided between the top of the rectangular groove (15) and the inner wall of the ear tube (1); Fixed end blocks (2) are symmetrically fixedly installed at both ends of the interior of the ear tube (1), and moving blocks (6) are symmetrically slidably installed at both ends of the inner wall of the ear tube (1). A fixed plug rod (7) is fixedly installed at one end of the moving block (6) close to the fixed end block (2), and a connecting plate (8) is fixedly installed at the side of the moving block (6) away from the fixed plug rod (7), and two groups of connecting plates (8) are located on both sides of the trapezoidal clamping plate (14), and a trapezoidal block (9) is fixedly installed at one end of the connecting plate (8) away from the moving block (6) beyond the trapezoidal clamping plate (14).

2. The quick-release spring ear according to claim 1, characterized in that: A through hole (3) is formed inside the fixed end block (2), and the fixed insertion rod (7) passes through the through hole (3) and extends to the outside of the ear tube (1).

3. The quick-release spring ear according to claim 1, characterized in that: A return spring (11) is provided inside the ear tube (1) between the moving block (6) and the trapezoidal block (9) on the same side of the trapezoidal clamping plate (14); a mounting hole (10) is provided on the side of the trapezoidal block (9) away from the connecting plate (8), and one end of the return spring (11) is located inside the mounting hole (10).

4. The quick-release spring ear according to claim 1, characterized in that: The trapezoidal blocks (9) are semicircular in shape, and two groups of trapezoidal blocks (9) are symmetrically located at the bottom of the two sides of the trapezoidal clamping plate (14), and the inclined surfaces on both sides of the bottom of the trapezoidal clamping plate (14) are closely attached to the inclined surfaces of the trapezoidal blocks (9) on one side close to the connecting plate (8).

5. The quick-release spring ear according to claim 1, characterized in that: A limiting slide groove (5) is provided inside the mounting frame (4), and the limiting slide groove (5) is communicated with the inside of the ear tube (1). The surface of the limiting clamp ring (13) corresponds to the position of the limiting slide groove (5) and has the same shape.

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