A device for locking a timepiece movement

Abstract

The utility model discloses a device for locking and fixing clock movement, including shell body, through adopting the double locking structure of preliminary positioning and stable fixed position, form all -round restraint to movement, wherein, two groups of symmetrical setting compression assembly can carry out preliminary positioning to the movement in the containing groove, form the clamping force from the two sides inner wall of shell body, avoid the movement to appear to deviate before placing and cover closing, and compression limit component further adds the positioning force of action after cover closing, form the multidirectional limit of up and down and lateral through the cooperation with compression assembly, thoroughly eliminate the movement in the transportation because of the vehicle bumping, loading and unloading collision and produce the problem such as the running, rotation, this double locking design effectively protected the precise structure such as movement internal gear set, balance wheel, hair spring, prevent its displacement, deformation or wear and tear, and then guarantee the clock accuracy, reduce the scrap rate of movement because of transportation damage, reduce the economic loss for enterprise.

Description

Technical Field

[0001] This utility model relates to the field of watch movement locking technology, specifically a device for locking watch movements. Background Technology

[0002] As the core precision component of a watch, the watch movement contains multiple high-precision mating structures such as gear sets, balance wheels, and hairsprings. The assembly precision of these components directly determines the accuracy of the watch's timekeeping. During the storage, transportation, and cross-regional transport of watches, the movement must endure complex conditions such as vehicle bumps and collisions during loading and unloading. Without reliable locking and protection, the internal precision parts are prone to displacement, deformation, or wear, which can lead to timekeeping deviations, stoppage, and other malfunctions, or even cause the movement to be scrapped, resulting in significant economic losses for the manufacturing company.

[0003] Currently, the industry commonly uses locking devices to protect watch movements during transportation. The mainstream solutions mostly use a single rubber pad clamp or a rubber sleeve to hold the movement. However, the elastic deformation range of rubber material is limited, and there is a lack of targeted positioning structure, resulting in poor locking stability. The movement is prone to shifting and rotating during transportation and cannot effectively resist multi-directional vibration and impact. Therefore, we need to propose a device for locking watch movements. Utility Model Content

[0004] The purpose of this invention is to provide a device for locking watch movements. By setting up a double locking structure consisting of two sets of symmetrical pressing components and pressing limiting components, the movement is constrained in all directions, preventing it from shifting or rotating during transportation, protecting the internal precision structure, ensuring timekeeping accuracy, reducing the scrap rate, and reducing economic losses for enterprises, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for securing a watch movement includes: a housing with a cover plate hinged to its top, the cover plate being locked and positioned to the housing via a latch; a rubber base disposed at the inner bottom of the housing, the top of the rubber base having a receiving groove for placing the movement; two sets of pressing components for initially positioning the movement inside the receiving groove, symmetrically arranged on the inner walls of both sides of the housing; and a pressing limiting component for securely positioning the movement after the cover plate is closed, thereby preventing it from shifting during transportation.

[0007] Preferably, the pressing assembly includes a mounting base, which is fixedly connected to the inner wall of one side of the outer casing. A rotating shaft is rotatably connected to the mounting base. A fixing block is fixedly connected to the outer wall of the rotating shaft. A connecting plate is fixedly connected to the outer wall of the fixing block. A pressure block is fixedly connected to one end of the connecting plate. Torsion springs are respectively provided between the two ends of the mounting base and the fixing block.

[0008] Preferably, one end of the torsion spring is fixedly connected to the mounting base, and the other end is fixedly connected to the end of the fixing block, and the torsion spring is movably sleeved on the outer wall of the rotating shaft.

[0009] Preferably, a flexible pad is provided on the contact surface between the bottom of the pressure block and the mechanism.

[0010] Preferably, the pressing and limiting assembly includes two sets of threaded sleeves, which are fixedly embedded inside the cover plate. Each of the two sets of threaded sleeves is threaded with a screw rod. The bottom end of each of the two sets of screw rods is fixedly connected with a protrusion, and the bottom of each of the two sets of protrusions abuts against the top of the two sets of pressing blocks.

[0011] Preferably, the top end of the screw is located inside the sleeve.

[0012] Preferably, it also includes an internal hexagonal hole, which is formed at the top of the screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention employs a dual locking structure of preliminary positioning and stable positioning, forming a comprehensive constraint on the movement. Two symmetrically arranged pressing components provide preliminary positioning of the movement within the receiving slot, creating clamping force from the inner walls on both sides of the outer casing to prevent displacement of the movement before placement and cover closing. The pressing and limiting components further apply positioning force after the cover is closed, forming multi-directional vertical and lateral limiting through cooperation with the pressing components. This completely eliminates the movement's movement from shifting or rotating during transportation due to vehicle bumps and loading / unloading collisions. This dual locking design effectively protects the movement's internal gear set, balance wheel, hairspring, and other precision structures, preventing displacement, deformation, or wear, thereby ensuring the watch's accuracy and reducing the scrap rate caused by transportation damage, thus minimizing economic losses for the company. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the axial side structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the pressing assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the pressing and limiting component of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Cover plate; 3. Buckle; 4. Rubber base; 5. Mechanism; 6. Receiving groove; 7. Pressing assembly; 701. Mounting base; 702. Fixing block; 703. Connecting plate; 704. Pressing block; 705. Torsion spring; 8. Pressing limit assembly; 801. Screw sleeve; 802. Screw; 803. Protrusion; 804. Internal hexagonal hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution:

[0022] A device for locking a watch movement includes: an outer casing 1, which serves as the basic load-bearing structure of the device. It is integrally injection molded from high-strength engineering plastic and has good impact resistance and wear resistance. A cover plate 2 is hinged to the top via a hinge. The opening and closing angle range between the cover plate 2 and the outer casing 1 is 0-180°. A latch 3 is installed on the edge of the cover plate 2. The latch 3 is adapted to the snap-fit ​​structure on the side wall of the outer casing 1. When the cover plate 2 is closed, the latch 3 can be engaged to lock the cover plate 2 and the outer casing 1. By setting the cooperative structure of the outer casing 1, the cover plate 2 and the latch 3, a closed protective space is provided for the internal components and the movement 5. The device can be opened and closed quickly and locked reliably, effectively preventing the intrusion of external dust and moisture and the impact of collisions on the movement 5.

[0023] The rubber base 4 is fixedly installed to the inner bottom of the outer casing 1 by bolts. The rubber base 4 is made of high elasticity and wear-resistant rubber material, which has good cushioning and shock absorption performance. Its top has a receiving groove 6 that is adapted to the shape of common movement 5. The inner wall of the receiving groove 6 is rounded to avoid sharp edges scratching the surface of movement 5. By setting the rubber base 4 and the receiving groove 6 on the top, a close-fitting placement base is provided for movement 5, and the elastic deformation of the rubber material is used to absorb some of the vibration energy during transportation. At the same time, the movement 5 is initially centered and positioned to prevent movement 5 from being displaced significantly within the outer casing 1.

[0024] Two sets of pressing components 7 are used to initially position the movement 5 inside the receiving groove 6. They are symmetrically arranged on the inner walls of both sides of the outer shell 1. The center line connecting the two sets of pressing components 7 coincides with the central axis of the receiving groove 6, ensuring that the clamping force on the movement 5 is balanced. By setting two sets of symmetrically distributed pressing components 7, symmetrical clamping forces can be applied from both sides of the movement 5, so as to achieve the initial horizontal positioning of the movement 5 in the receiving groove 6. This avoids the movement 5 from shifting to the left or right or tipping over before it is placed and the cover plate 2 is closed, laying the foundation for subsequent stable positioning.

[0025] The pressing and limiting component 8 is set vertically and vertically with the pressing component 7 to securely position the movement 5 after the cover plate 2 is closed, thereby preventing it from shifting during transportation. By setting the pressing and limiting component 8, downward pressure can be applied to the pressing component 7 after the cover plate 2 is closed, so that the pressing component 7 maintains a stable clamping state on the movement 5, and at the same time forms a limiting constraint in the vertical direction. Together with the pressing component 7, the movement 5 is stably positioned in multiple directions, completely eliminating the problem of shifting caused by bumps and collisions during transportation.

[0026] The pressing assembly 7 includes a mounting base 701, which is fixedly connected to the inner wall of one side of the outer casing 1 by welding. The mounting base 701 is made of steel plate by stamping, resulting in high structural strength. A rotating shaft is rotatably connected to the mounting base 701 via a bearing. The axis of the rotating shaft is horizontally oriented. A fixing block 702 is fixedly connected to the outer wall of the rotating shaft via a flat key. A connecting plate 703 is fixedly connected to the outer wall of the fixing block 702 via bolts. The connecting plate 703 is made of alloy material, possessing certain rigidity and toughness. A pressure block is fixedly connected to one end of the connecting plate 703 via a threaded connection. 704, the clamping surface of the pressure block 704 has an arc-shaped structure, which has a high degree of fit with the outer wall of the movement 5. Torsion springs 705 are respectively provided between the two ends of the mounting base 701 and the fixing block 702. By setting the pressing assembly 7 consisting of the mounting base 701, the rotating shaft, the fixing block 702, the connecting plate 703, the pressure block 704 and the torsion spring 705, the elastic restoring force of the torsion spring 705 drives the fixing block 702 to rotate around the rotating shaft, and then the connecting plate 703 drives the pressure block 704 to clamp towards the movement 5, realizing the automatic initial positioning of the movement 5, and the clamping force is gentle to avoid damage to the movement 5.

[0027] One end of the torsion spring 705 is fixedly connected to the mounting base 701 via a hook, and the other end is fixedly connected to the end of the fixing block 702 via a hook. The torsion spring 705 is movably sleeved on the outer wall of the rotating shaft. The initial state of the torsion spring 705 is a pre-compressed state, which ensures that a rotational force towards the movement 5 is always applied to the fixing block 702. By setting the torsion spring 705 sleeved on the outer wall of the rotating shaft and its connection with the mounting base 701 and the fixing block 702, the installation stability of the torsion spring 705 is ensured, and the elastic force of the torsion spring 705 is accurately transmitted to the fixing block 702, providing a continuous and stable clamping force for the pressure block 704, while facilitating the disassembly and maintenance of the components.

[0028] A flexible pad is fixedly attached to the bottom of the pressure block 704 and the contact surface of the movement 5 by adhesive. The flexible pad is made of silicone material with anti-slip texture on the surface and a thickness of 2-3mm. By setting the flexible pad at the bottom of the pressure block 704, the friction between the pressure block 704 and the movement 5 can be increased, improving the clamping stability. At the same time, it avoids hard contact between the pressure block 704 and the movement 5, effectively preventing the surface of the movement 5 from being scratched or damaged, and ensuring the appearance and performance of the movement 5 are intact.

[0029] The pressing and limiting assembly 8 includes two sets of threaded sleeves 801, which are fixedly embedded inside the cover plate 2 by interference fit. The axis of the threaded sleeves 801 is vertically arranged. The two sets of threaded sleeves 801 are respectively threaded with screws 802. The screws 802 have fine threads for easy and precise adjustment of the feed rate. The bottom ends of the two sets of screws 802 are fixedly connected with protrusions 803 by welding. The protrusions 803 have a hemispherical structure and are made of hard rubber. The bottom part of the two sets of protrusions 803... The pressure block 704 does not come into contact with the top of the two sets of pressure blocks 704. The contact point is the middle position of the pressure block 704. The pressing and limiting assembly 8, which is composed of a screw sleeve 801, a screw 802 and a protrusion 803, is used to adjust the vertical height by means of the threaded engagement between the screw 802 and the screw sleeve 801. The pressure is transmitted to the pressure block 704 through the protrusion 803, so that the pressure block 704 keeps the movement 5 in a clamping state. At the same time, the pressure can be flexibly adjusted according to the thickness of the movement 5 to adapt to the locking requirements of different specifications of movement 5.

[0030] The top end of the screw 802 is located inside the sleeve 801, and the top surface of the screw 802 is flush with the upper surface of the cover plate 2. This prevents the screw 802 from protruding from the cover plate 2 and causing accidental contact or damage. By setting the structure so that the top end of the screw 802 is located inside the sleeve 801, the flatness of the device appearance is ensured, and the screw 802 is protected to prevent damage to the threads caused by collisions during transportation or operation, thus ensuring the reliability of the adjustment function.

[0031] The device also includes an internal hexagonal hole 804, which is located on the top of the screw 802. The specifications of the internal hexagonal hole 804 are compatible with commonly used internal hexagonal wrenches. By setting the internal hexagonal hole 804 on the top of the screw 802, it is easy to use an internal hexagonal wrench to drive the screw 802 to rotate, thereby achieving precise lifting and lowering adjustment of the screw 802. The operation is convenient and labor-saving. At the same time, compared with the externally protruding adjustment parts, the internal hexagonal structure can better avoid the problem of adjustment failure caused by misoperation.

[0032] Working principle: First, open the latch 3 and flip the cover 2 to open the outer shell 1. At this time, the torsion spring 705 in the pressing assembly 7 is in a pre-compressed state. Its elastic restoring force drives the fixing block 702 to rotate around the axis towards the receiving groove 6. Then, the connecting plate 703 drives the pressure block 704 to be in the clamping preparation position. Place the movement 5 into the receiving groove 6 of the rubber base 4. During the placement process, the outer walls on both sides of the movement 5 will squeeze the pressure block 704, causing the pressure block 704 to drive the connecting plate 703 and the fixing block 702 to rotate outward around the axis. The torsion spring 705 is further compressed and generates a reverse elastic force. Under the action of the elastic force, the pressure block 704 tightly fits the two sides of the movement 5, realizing the initial horizontal positioning of the movement 5. At the same time, the flexible pad at the bottom of the pressure block 704 increases the friction and avoids hard damage.

[0033] After the movement 5 is initially positioned, the cover plate 2 is flipped and placed on top of the outer casing 1, and the latch 3 is engaged to lock the cover plate 2 to the outer casing 1. An Allen wrench is inserted into the Allen hole 804 at the top of the screw 802, and the screw 802 is rotated. The screw 802 and the threaded engagement of the screw and the screw sleeve 801 cause the screw 802 to move the protrusion 803 downward until the bottom of the protrusion 803 is in close contact with the top of the pressure block 704. The screw 802 is then finely adjusted so that the protrusion 803 applies a stable downward pressure to the pressure block 704. At this time, under the combined action of the elastic force of the torsion spring 705 and the downward pressure of the protrusion 803, the pressure block 704 maintains a horizontal clamping force on both sides of the movement 5, and indirectly limits the movement by forming a limit with the top of the movement 5 through the flexible pad. With the bottom support of the rubber base 4, the movement 5 is stably positioned in all directions in the up-down, left-right, and front-back directions.

[0034] After the transport arrives at the destination, first loosen the latch 3, flip the cover plate 2, and then use an Allen wrench to turn the screw 802 in the opposite direction, causing the protrusion 803 to move upward and disengage from the pressure block 704, releasing the downward pressure constraint on the pressure block 704. Finally, push the pressure block 704 outward to disengage it from the movement 5, allowing the movement 5 to be removed and the unlocking process complete. Throughout the entire process, the elastic deformation of the rubber base 4 absorbs the vibration energy during transportation, and the double locking structure ensures that the movement 5 will not shift or rotate. The coordinated action of all components provides reliable protection for the movement 5, ensuring the integrity of the precision internal structure of the movement 5.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for locking a watch movement, characterized in that, include: The outer shell (1) has a cover plate (2) hinged to its top, and the cover plate (2) is locked and positioned to the outer shell (1) by a buckle (3); A rubber base (4) is provided at the bottom of the outer casing (1), and a receiving groove (6) for placing the movement (5) is provided on the top of the rubber base (4); The pressing assembly (7) used to initially position the internal mechanism (5) of the receiving groove (6) is set in two sets and is symmetrically arranged on the inner walls of both sides of the outer shell (1). A pressing and limiting component (8) is used to securely position the movement (5) after the cover plate (2) is closed, thereby preventing it from shifting during transportation.

2. The device for locking a watch movement according to claim 1, characterized in that: The pressing assembly (7) includes a mounting base (701), which is fixedly connected to the inner wall of one side of the outer shell (1). A rotating shaft is rotatably connected to the mounting base (701), and a fixing block (702) is fixedly connected to the outer wall of the rotating shaft. A connecting plate (703) is fixedly connected to the outer wall of the fixing block (702). A pressure block (704) is fixedly connected to one end of the connecting plate (703). Torsion springs (705) are respectively provided between the two ends of the mounting base (701) and the fixing block (702).

3. The device for locking a watch movement according to claim 2, characterized in that: One end of the torsion spring (705) is fixedly connected to the mounting base (701), and the other end is fixedly connected to the end of the fixing block (702). The torsion spring (705) is movably sleeved on the outer wall of the rotating shaft.

4. The device for locking a watch movement according to claim 3, characterized in that: A flexible pad is provided on the contact surface between the bottom of the pressure block (704) and the mechanism (5).

5. The device for locking a watch movement according to claim 4, characterized in that: The pressing and limiting assembly (8) includes two sets of threaded sleeves (801), which are fixedly embedded inside the cover plate (2). The inside of each of the two sets of threaded sleeves (801) is threaded with a screw (802). The bottom end of each of the two sets of screws (802) is fixedly connected with a protrusion (803), and the bottom of each of the two sets of protrusions (803) abuts against the top of each of the two sets of pressing blocks (704).

6. The device for locking a watch movement according to claim 5, characterized in that: The top end of the screw (802) is located in the inner cavity of the screw sleeve (801).

7. The device for locking a watch movement according to claim 6, characterized in that: It also includes an internal hexagonal hole (804) which is formed at the top of the screw (802).

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