A tool for disassembling a watch strap

Abstract

The application relates to the technical field of precision tools, in particular to a dismounting tool for a watchband, which comprises a base, a first supporting part and a second supporting part which are arranged on the base at intervals, a lifting platform arranged between the first supporting part and the second supporting part, and a pin dismounting assembly and a screw dismounting assembly which are respectively used for dismounting pins and screws. The lifting platform is driven to make vertical fine adjustment by adjusting a handle, so that the connecting hole of the watchband can be accurately aligned with the coaxially arranged dismounting assembly. The pin dismounting assembly is smoothly pushed out through a threaded pushing mode. The application integrates multiple functions, realizes accurate alignment through the lifting platform, improves operation efficiency, replaces knocking with smooth pushing force, effectively reduces the risk of watchband damage, and has high practicability.

Description

Technical Field

[0001] This application relates to the field of precision tool technology, and more particularly to a tool for removing watch straps. Background Technology

[0002] Watch metal bracelets are typically connected using hairpins, screws, or micro screws. Special tools are needed to disassemble or install these connectors when adjusting the bracelet length.

[0003] Currently, common disassembly methods mainly suffer from two types of problems: The first type uses a "pin and hammer" striking method. This method relies entirely on manual alignment and force control. During operation, operator hand tremors or improper striking force often cause the pin to shift, scratching the precious metal surface of the watchband and even damaging the precision structure of the pin holes. The second type uses a simple screw-type strap remover. While this tool avoids hammering, its core flaw is that the tool's pin or screwdriver head is difficult to align with the hole in the watchband's connector. Users have to repeatedly try to align it using cumbersome methods such as temporary shims, which is not only inefficient but also prone to damaging the tool head or watchband due to misalignment when applying force. In addition, existing tools are often single-function, requiring multiple sets of independent tools to handle various connector structures, which is inconvenient and prone to tool loss.

[0004] Based on the above, this application proposes a tool for disassembling watch straps, which can effectively solve the above problems. Utility Model Content

[0005] To address the problems of low efficiency, easy damage to watch straps, and limited functionality of existing watch strap removal tools due to difficulty in alignment, this application proposes a watch strap removal tool.

[0006] A tool for removing watch straps, comprising: A base, wherein a first support portion and a second support portion are provided at intervals on the base; The lifting platform is located between the first support part and the second support part and is capable of vertical lifting movement; The pin removal assembly includes a removal push rod mounted on a first support and a discharge groove opened on a second support and coaxially disposed with the removal push rod. The screw removal assembly includes a screwdriver mounted on a first support and an aligning tip disposed on a second support and coaxially disposed with the screwdriver.

[0007] This solution constructs a framework for the tool by setting up an integrated base, a liftable platform, and two main functional components: a pin removal component and a screw removal component. This helps to achieve functional integration and assist in precise alignment, thereby improving the problems of scattered and inconvenient alignment of existing technical tools.

[0008] In one embodiment, the first support portion has a support threaded hole, and the outer circumferential surface of the disassembly push rod is provided with an external thread that mates with the support threaded hole. A pin tool head is installed at one end of the disassembly push rod near the second support portion. This solution replaces the traditional hammering method with a threaded push structure, making the movement of the disassembly push rod relatively smooth and linearly controllable when a pushing force is applied. The operator can control the pushing force and speed by rotating the rod, which helps reduce the risk of the tool head slipping or scratching the watch strap due to unstable operation or uneven force.

[0009] In one embodiment, both the ejector tool head and the screwdriver head of the disassembly screwdriver are replaceable tool heads, detachably connected to the disassembly push rod and the shaft of the disassembly screwdriver respectively via quick-change interfaces. This design allows the tool to be adapted to different types of watch strap connectors by replacing different sized tool heads, thus improving the tool's versatility and applicability.

[0010] In one embodiment, a component collection recess is provided at the top of the first support to accommodate connectors removed from the watch strap. This design provides a dedicated area for storing small connectors, helping to prevent tiny parts such as pins and screws from rolling off or being lost during disassembly, thus improving ease of operation.

[0011] In one embodiment, the second support portion has a mounting hole, and the alignment tip is disposed within the mounting hole. The second support portion also has a first limiting hole perpendicular to the mounting hole. A first limiting member passes through the first limiting hole and abuts against the shank of the alignment tip to lock the alignment tip to the second support portion. This solution provides a method for fixing the alignment tip, ensuring that when removing a screw, the alignment tip can stably hold one end of the screw, providing resistance to the torque applied by the screwdriver at the other end, thus ensuring smooth disassembly.

[0012] In one embodiment, a threaded through hole and multiple positioning holes are provided on the base between the first and second support parts. Multiple positioning pins are correspondingly provided on the bottom of the lifting platform, and the positioning pins can cooperate with the positioning holes. This solution constrains the movement trajectory of the lifting platform through the cooperation of the positioning pins and positioning holes, helping to ensure that it rises and falls vertically, avoiding significant shaking or rotation during the lifting process, thereby helping to maintain the stability of the coaxiality between the watch strap and the disassembly tool.

[0013] In one embodiment, an adjustment handle is also included. The adjustment handle includes a threaded portion and a gripping portion. A slot is also formed at the bottom of the lifting platform. The threaded portion of the adjustment handle is threadedly connected to the threaded through-hole. The threaded portion of the adjustment handle passes through the threaded through-hole until it is engaged in the slot. The lifting platform is driven to rise and fall by rotating the gripping portion. This solution utilizes the principle of threaded transmission to convert rotational motion into linear vertical motion, providing a finely adjustable driving method for the lifting platform. The operator can control the height of the platform by rotating the gripping portion of the adjustment handle, thereby assisting in aligning the watch strap with the tool.

[0014] In one embodiment, the lifting platform is further provided with a second limiting hole perpendicular to the slot, and a second limiting member passes through the second limiting hole and abuts against the top of the threaded portion of the adjusting handle to lock the adjusting handle to the lifting platform. This design ensures that the adjusting handle and the lifting platform are connected as one unit, making it less likely for them to slide relative to each other or loosen during lifting, thus ensuring the working stability of the adjusting mechanism.

[0015] In one embodiment, a baffle is further included, detachably disposed on the outer peripheral wall of the second support portion. The baffle has a first channel and a second channel, the position of the first channel matching the position of the discharge groove, and the cutting head portion of the alignment cutter is accommodated within the second channel. The baffle in this design serves a dual purpose: when removing the pin, it acts as a positioning reference for the watch strap and guides the pin out; when the screw removal function is not used, it covers the alignment cutter, providing protection and helping to prevent accidental injury to the operator or damage to other items, thus improving tool safety.

[0016] In one embodiment, the lifting platform has a support groove on its bearing surface to partially accommodate the disassembly push rod and the disassembly screwdriver. This design provides a placement position for the disassembly push rod and the disassembly screwdriver when not in operation, avoiding direct contact between the tool rods and the lifting platform's bearing surface, helping to prevent bumps and wear, and also making the overall structure more regular.

[0017] In summary, this application includes at least one of the following beneficial technical effects: 1. By integrating pin removal and screw removal components onto the same base, multiple functions are combined, resulting in a relatively compact structure that helps improve the problems of existing tools being scattered, easily lost, and inconvenient to carry.

[0018] 2. By setting up a vertically adjustable lifting platform, along with its positioning mechanism, the watch strap connection hole and disassembly tool can be aligned coaxially, which helps improve operational efficiency and reduces the risk of damage to the tool head or watch strap due to misalignment.

[0019] 3. By setting a threaded push-rod for disassembly, a more stable and controllable pushing force is used instead of impact force, making the disassembly process more stable. At the same time, the coaxially set disassembly screwdriver and alignment tool can stably apply and counteract torque, achieving reliable disassembly of screw-type connectors, which helps to reduce the risk of scratching the watch strap surface or damaging the connection hole structure.

[0020] 4. By setting up replaceable tool heads and functional baffles, accessory collection pits and other auxiliary structures, the versatility, safety and ease of operation of the tool are improved, making it adaptable to different sizes of watch straps and improving the overall usage process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a tool for disassembling watch straps proposed in this application.

[0022] Figure 2 This is a first exploded view schematic diagram of a tool for disassembling watch straps proposed in this application.

[0023] Figure 3 This is a second exploded view schematic diagram of a tool for disassembling watch straps proposed in this application.

[0024] Figure 4 This is a schematic diagram of the bottom surface of the lifting platform in a tool for disassembling watch straps proposed in this application.

[0025] Figure 5 This is a schematic diagram of the structure of a tool for disassembling watch straps proposed in this application when disassembling pin-type connectors such as hairpins or pins.

[0026] Figure 6 This is a schematic diagram of the structure of a tool for disassembling watch straps proposed in this application when disassembling a miniature screw connector.

[0027] Explanation of reference numerals in the attached figures: 1. Base; 11. First support part; 111. Support threaded hole; 112. Accessory collection pit; 12. Second support part; 121. Mounting hole; 122. First limiting hole; 13. Threaded through hole; 14. Positioning hole; 2. Lifting platform; 21. Positioning pin; 22. Slot hole; 23. Second limiting hole; 24. Bearing groove; 3. Pin removal assembly; 31. Removal push rod; 311. External thread; 312. Ejector tool head; 32. Discharge groove; 4. Screw removal assembly; 41. Removal screwdriver; 42. Alignment tool head; 5. First limiting member; 6. Adjusting handle; 61. Threaded part; 62. Grip part; 7. Second limiting member; 8. Baffle; 81. First channel; 82. Second channel. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-6 This application provides a further detailed description of a tool for disassembling watch straps.

[0029] This application provides a tool for disassembling watch straps, including: a base 1, a lifting platform 2, a pin removal assembly 3, and a screw removal assembly 4.

[0030] In this embodiment, the base 1 provides a stable support for the entire tool and can be made of aluminum alloy, stainless steel, or high-strength engineering plastic to ensure the required rigidity and stability. In this embodiment, aluminum alloy is preferred. Two structurally separate support parts, namely a first support part 11 and a second support part 12, are spaced apart on the base 1. The lifting platform 2 is located in the space between the first support part 11 and the second support part 12 and can move vertically. The top surface of the lifting platform 2 serves as a bearing surface for supporting the watch strap to be operated.

[0031] In this embodiment, the pin removal assembly 3 is used to remove pin-type connectors such as hair clips or pins / seams. The pin removal assembly 3 includes a removal push rod 31 mounted on a first support 11 and a discharge groove 32 coaxially arranged with the removal push rod 31 on a second support 12. A through support threaded hole 111 is provided on the first support 11, and the rod body of the removal push rod 31 is machined with an external thread 311 that mates with the support threaded hole 111. By rotating the removal push rod 31, it can move smoothly axially within the support threaded hole 111.

[0032] Specifically, a replaceable ejector tool head 312 is installed at one end of the disassembly push rod 31 near the second support part 12. The ejector tool head 312 can push out the pin-type connector on the watch strap along the discharge groove 32. The ejector tool head 312 can be detachably connected to the rod body of the disassembly push rod 31 through a quick-change interface, so that the user can replace the ejector with different diameters or shapes of ejector pins according to actual needs to adapt to different specifications of watch pins.

[0033] More specifically, the quick-change interface can be a threaded interface, a miniature clamp, a spring clip, or a magnetic interface, etc., and in this embodiment, a spring clip is preferred.

[0034] In this embodiment, the screw removal assembly 4 is used to remove a watch strap connected by micro-screws. The screw removal assembly 4 includes a screwdriver 41 mounted on a first support 11 and an alignment tool 42 fixed on a second support 12.

[0035] Specifically, on the first support part 11, parallel to the support threaded hole 111, there is a receiving hole for accommodating the shaft of the disassembly screwdriver 41. One end of the disassembly screwdriver 41 is a rotating handle, and the other end is a screwdriver head. The screwdriver head can also be replaced through a quick-change interface to adapt to miniature screws with different slot types such as slotted, Phillips, and hexagonal.

[0036] Specifically, the alignment tip 42 is a component in the screw removal assembly 4 that provides reverse support. Its function is to fix the other end of the screw during removal, preventing it from rotating. The second support portion 12 has a mounting hole 121 for inserting the shank of the alignment tip 42. To securely lock it in place, the side wall of the second support portion 12 also has a first limiting hole 122 perpendicular to the mounting hole 121. A first limiting member 5 passes through this first limiting hole 122. In this embodiment, the first limiting member 5 is preferably a full-thread screw, the tip of which can abut against the shank of the alignment tip 42, thereby achieving reliable locking between the alignment tip 42 and the second support portion 12. The axis of the screwdriver 41 and the axis of the alignment tip 42 are designed to be strictly coaxial to ensure accurate alignment of both ends during removal.

[0037] In this embodiment, the lifting platform 2 is a component used to assist in accurately aligning the watch strap with the disassembly tool. To ensure the stability of the lifting platform 2 during its lifting process, multiple positioning pins 21 are provided at the bottom of the lifting platform 2. In this embodiment, the number of positioning pins 21 is preferably four. The base 1 has four positioning holes 14 on its integrated base plate at corresponding positions, which match the positioning pins 21. In the assembled state, the positioning pins 21 are inserted into the positioning holes 14. Through the sliding engagement between the pins and the holes, the movement trajectory of the lifting platform 2 is guided, constraining the lifting platform 2 to move in the vertical direction.

[0038] Specifically, a through threaded hole 13 is provided on the bottom plate of the base 1, at the center of the area enclosed by the four positioning holes 14. Correspondingly, a non-threaded slot 22 is provided at the center of the bottom of the lifting platform 2.

[0039] Specifically, it also includes an adjustment handle 6, which includes a grip 62 that can be rotated by the operator and a threaded portion 61 with external threads, the threaded portion 61 engaging with a threaded through hole 13. The threaded portion 61 of the adjustment handle 6 can be screwed into the threaded through hole 13 from below the base 1, and the adjustment handle 6 is connected to the base 1 through the threaded engagement. The threaded portion 61 of the adjustment handle 6 continues to be screwed upwards, and its top end passes through the threaded through hole 13, extends out, and engages with the slot 22 at the bottom of the lifting platform 2.

[0040] More specifically, to effectively transmit the axial movement of the adjusting handle 6 to the lifting platform 2, a second limiting hole 23 perpendicular to the slot 22 is provided on the side wall of the lifting platform 2. A second limiting member 7 passes through the second limiting hole 23. In this embodiment, the second limiting member 7 is preferably a set screw, the end of which abuts against the top side wall of the threaded portion 61 of the adjusting handle 6. By tightening the second limiting member 7, the top of the adjusting handle 6 can be locked to the slot 22 of the lifting platform 2, preventing relative axial movement between the two. When the operator rotates the grip 62, the adjusting handle 6 will undergo a smooth axial displacement relative to the fixed base 1, i.e., rising or falling, because the threaded portion 61 is threadedly connected to the threaded through hole 13 of the base 1. Since the top of the adjusting handle 6 is locked to the lifting platform 2, this axial displacement will directly drive the lifting platform 2 to complete a smooth lifting movement synchronously, thereby enabling the watch strap and disassembly tool placed flat on the lifting platform 2 to be accurately aligned.

[0041] In this embodiment, a parts collection pit 112 is also provided on the top of the first support part 11, where small parts such as pins or screws that have been disassembled can be temporarily placed to reduce the risk of them rolling away and being lost.

[0042] In this embodiment, two support grooves 24 are provided on the bearing surface of the lifting platform 2, corresponding to the positions of the disassembly push rod 31 and the disassembly screwdriver 41. When the disassembly tools are not working and the disassembly push rod 31 and the disassembly screwdriver 41 are in the retracted state, their rods can be partially accommodated in the support grooves 24. This avoids direct contact between the tool rods and the platform bearing surface, helps to prevent bumps and wear, and also makes the platform surface more regular, making it easier to place watch straps.

[0043] In this embodiment, a baffle 8 is also included. The baffle 8 is detachably mounted on the outer peripheral wall of the second support portion 12. When the lifting platform 2 is installed, the lifting platform 2 can press the baffle 8 against the side wall of the second support portion 12 to achieve simple limiting. The baffle 8 has a first channel 81 and a second channel 82, which are arranged in parallel. The position and size of the first channel 81 match the discharge groove 32 on the second support portion 12, and the position of the second channel 82 corresponds to the alignment head 42. When using the pin removal function, the baffle 8 can be installed on the outer peripheral wall of the second support portion 12. At this time, the first channel 81 is aligned with the discharge groove 32, facilitating the smooth ejection of the pin under the action of the ejector tool head 312. Simultaneously, the second channel 82 can accommodate and cover the sharp cutting edge of the alignment head 42, providing a safety protection function. When using the screw removal function, the baffle 8 can be removed from the outer peripheral wall of the second support part 12. At this time, the blade part of the alignment blade 42 is exposed to the outside, and the two ends of the screw-type connectors on the watch strap can be aligned and removed.

[0044] The working principle of the tool for removing watch straps provided in this application embodiment is as follows: 1. When disassembling hairpins or pin-type connectors in a watch strap, first install the baffle 8 on the outer peripheral wall of the second support 12, aligning the first channel 81 with the discharge groove 32 on the second support 12. At this time, the second channel 82 will naturally shield the alignment tool 42 below, preventing accidental contact. Next, place the watch strap to be disassembled flat on the bearing surface of the lifting platform 2, with one edge of the strap resting against the baffle 8 as a positioning reference. Rotate the grip 62 of the adjusting handle 6 located below the base 1. Through the engagement of the threaded part 61 and the threaded through hole 13, the adjusting handle 6 smoothly raises or lowers the lifting platform 2. The operator must carefully observe until the center line of the pin hole in the watch strap is substantially coincident with the center line of the ejector tool head 312 of the disassembly push rod 31, thus completing the coaxial alignment. By slowly rotating the disassembly push rod 31, the ejector tool head 312 smoothly advances forward into the pin hole through the engagement of its external thread 311 with the support threaded hole 111, applying a continuous axial thrust to the pin. Once fully ejected, the pin exits through the discharge groove 32. The operator can then easily remove the pin and place it into the accessory collection pit 112.

[0045] 2. When disassembling the micro-screw connector in the watch strap, first remove the baffle 8 to fully expose the alignment head 42 fixed on the second support 12, and place the watch strap on the lifting platform 2. Next, rotate the grip 62 of the adjusting handle 6 to adjust the height of the lifting platform 2 so that the axis of the micro-screw in the strap is vertically aligned with the axes of the disassembly screwdriver 41 and the alignment head 42. Slightly move the strap horizontally to engage the groove at one end of the micro-screw with the fixed alignment head 42. Push the disassembly screwdriver 41 forward so that its screwdriver head engages with the groove at the other end of the micro-screw. At this time, stabilize the base 1 with one hand and rotate the handle of the disassembly screwdriver 41 with the other hand. Since the alignment head 42 fixes the other end of the micro-screw, the applied torque will effectively act on the threaded pair, unscrewing the micro-screw. The removed micro-screw component can also be placed in the accessory collection pit 112.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tool for removing watch straps, characterized in that, include: A base (1) is provided with a first support part (11) and a second support part (12) spaced apart on the base (1); The lifting platform (2) is located between the first support part (11) and the second support part (12) and is capable of vertical lifting movement; The pin removal assembly (3) includes a removal push rod (31) mounted on the first support (11) and a discharge groove (32) opened on the second support (12) and coaxially arranged with the removal push rod (31); The screw removal assembly (4) includes a screwdriver (41) mounted on a first support (11) and an alignment head (42) disposed on a second support (12) and coaxially disposed with the screwdriver (41).

2. The tool for disassembling watch straps according to claim 1, characterized in that, The first support part (11) is provided with a support threaded hole (111), and the outer peripheral surface of the disassembly push rod (31) is provided with an external thread (311) that mates with the support threaded hole (111). A pin tool head (312) is installed at one end of the disassembly push rod (31) near the second support part (12).

3. The tool for disassembling watch straps according to claim 2, characterized in that, The ejector tool head (312) and the screwdriver head of the disassembly screwdriver (41) are both replaceable tool heads, and are detachably connected to the disassembly push rod (31) and the rod body of the disassembly screwdriver (41) respectively through quick-change interfaces.

4. The disassembly tool according to claim 1, characterized in that, The top of the first support (11) has a fitting collection pit (112) for holding the connectors that are removed from the watch strap.

5. A tool for disassembling watch straps according to claim 1, characterized in that, The second support part (12) has a mounting hole (121) and the alignment cutter head (42) is disposed in the mounting hole (121). The second support part (12) also has a first limiting hole (122) perpendicular to the mounting hole (121). A first limiting member (5) passes through the first limiting hole (122) and abuts against the rod of the alignment cutter head (42) to lock the alignment cutter head (42) to the second support part (12).

6. A tool for disassembling watch straps according to claim 1, characterized in that, A threaded through hole (13) and multiple positioning holes (14) are provided on the base (1) between the first support part (11) and the second support part (12). Multiple positioning pins (21) are provided at the bottom of the lifting platform (2), and the positioning pins (21) can cooperate with the positioning holes (14).

7. A tool for disassembling watch straps according to claim 6, characterized in that, It also includes an adjustment handle (6), which includes a threaded part (61) and a gripping part (62). The bottom of the lifting platform (2) is also provided with a slot (22). The threaded part (61) of the adjustment handle (6) is threadedly connected to the threaded through hole (13). The threaded part (61) of the adjustment handle (6) passes through the threaded through hole (13) until it is engaged in the slot (22). The lifting platform (2) is driven to rise and fall by rotating the gripping part (62).

8. A tool for disassembling watch straps according to claim 7, characterized in that, The lifting platform (2) is also provided with a second limiting hole (23) perpendicular to the slot (22). A second limiting member (7) passes through the second limiting hole (23) and abuts against the top of the threaded part (61) of the adjusting handle (6) to lock the adjusting handle (6) and the lifting platform (2).

9. A tool for disassembling watch straps according to claim 1, characterized in that, It also includes a baffle (8), which is detachably disposed on the outer peripheral wall of the second support (12). The baffle (8) has a first channel (81) and a second channel (82). The position of the first channel (81) matches the position of the discharge groove (32). The blade part of the alignment blade (42) is accommodated in the second channel (82).

10. A tool for disassembling watch straps according to claim 1, characterized in that, The lifting platform (2) has a bearing groove (24) on its bearing surface for partially accommodating the disassembly push rod (31) and the disassembly screwdriver (41).

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