A combined meter hairspring assembly

Abstract

The utility model belongs to meter hairspring technical field, and disclose a kind of combined meter hairspring assembly, including hairspring chassis, rotationally connected with the shaft in the top center position of hairspring chassis, hairspring chassis is provided with hairspring main body, the outside end surface of hairspring main body is fixedly connected with locating post, the inside end surface of hairspring main body is fixedly connected with intermediate block, cooperation slot is opened in intermediate block, cooperation block is provided in cooperation slot, cooperation block is fixed on the outside of shaft, the outside of shaft is equipped with connecting sleeve, the outside wall of connecting sleeve is fixedly connected with the multiple top face limit board of evenly distributed, by rotating ring, positioning block can be made to leave the positioning slot on positioning plug-in board, plug-in rod can also be made to leave the insertion hole on locating post, connecting sleeve, top face limit board, side limit board and other structures can be moved upwards and detached, and then detach hairspring main body, and hairspring main body can be quickly disassembled.

Description

Technical Field

[0001] This utility model belongs to the field of instrument hairspring technology, specifically a combined instrument hairspring assembly. Background Technology

[0002] The main function of the instrument's spiral spring is to stabilize the instrument pointer and accurately display the instrument's reading. Its specific functions are: to use the reaction torque generated by the spiral spring to keep the gears of the movement in close contact, eliminate the unstable state of the indicated value caused by the meshing clearance between the teeth and the connection clearance between each transmission shaft and connecting rod, and make the pointer positioning and operation smooth; after the pressure is eliminated, it helps the pointer return to zero.

[0003] Chinese Patent Application No. 202320454512.X discloses a combined instrument hairspring assembly, including a hairspring bracket. A combined component is disposed on the top of the hairspring bracket, and a rotating shaft is rotatably connected to the top of the hairspring bracket. A planar spiral spring is disposed on the outer side of the rotating shaft, and a support column is fixedly installed on the outer end face of the planar spiral spring. An insertion hole is provided on the top of the hairspring bracket, and a fixing component is disposed on the outer side of the hairspring bracket. By fixing the component, the restriction on the support rod is released, thereby releasing the restriction on the limiting rod. The limiting rod and the intermediate ring can be disassembled from the planar spiral spring. Then, the support column is moved out of the insertion hole, and the intermediate block is moved off the outer side of the mating block, allowing the planar spiral spring to be disassembled. The combined design makes overall disassembly and installation convenient, facilitating maintenance and replacement.

[0004] However, the above-mentioned combined instrument clock spring assembly has the following problems in actual use: the fixing component is used to fix the structure of the combined assembly, mainly by using a screw to connect the support rod to achieve the fixing function. When disassembling and assembling, multiple knobs need to be operated, which is inconvenient. In addition, the removed knobs and screws are easy to lose, making them inconvenient to use.

[0005] Therefore, a combined instrument hairspring assembly is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a combined instrument hairspring assembly, which has structures such as a quick-release connecting sleeve, a top limiting plate, and a side limiting plate, to facilitate quick disassembly and assembly of the hairspring body.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a combined instrument hairspring assembly, including a hairspring base, a rotating shaft rotatably connected to the top center of the hairspring base, a hairspring body disposed on the hairspring base, a positioning post fixedly connected to the outer end face of the hairspring body, a middle block fixedly connected to the inner end face of the hairspring body, a mating groove provided on the middle block, a mating block disposed in the mating groove, the mating block fixed to the outer side of the rotating shaft, a connecting sleeve sleeved on the outer side of the rotating shaft, a plurality of evenly distributed top surface limiting plates fixedly connected to the outer wall of the connecting sleeve, a side limiting plate disposed at the bottom position of the end of the top surface limiting plate away from the connecting sleeve, a positioning insert fixedly connected to the bottom of the side limiting plate, a positioning slot disposed on the hairspring base corresponding to the positioning insert, the positioning insert extending into the positioning slot, a positioning component disposed on the hairspring base, the positioning component being movably connected to the positioning insert;

[0008] The positioning component includes a positioning groove formed on the side wall of the positioning plate, a positioning block is provided in the positioning groove, a return spring is connected to the side of the positioning block away from the positioning plate, a connecting rod is fixedly connected to the bottom of the positioning block near the return spring, a rotating ring is fixedly connected to the bottom of the connecting rod, and the rotating ring is rotatably connected to the hairspring base.

[0009] Preferably, a recessed hole is provided on the main body of the hairspring at a position corresponding to the positioning post, and the bottom end of the positioning post extends into the recessed hole.

[0010] Preferably, the side wall of the positioning post in the recess is provided with an insertion hole, an insertion rod is provided in the insertion hole, the insertion rod is fixedly connected to an L-shaped rod, and the L-shaped rod is fixedly connected to a rotating ring.

[0011] Preferably, the side limiting plate includes a fixed frame that is fixedly connected to the top limiting plate on the top surface. A movable plate is provided inside the fixed frame. A threaded groove is provided at the middle position of the top surface of the movable plate. An adjusting bolt is provided on the top limiting plate at a position corresponding to the threaded groove. The screw of the adjusting bolt passes through the threaded groove of the top limiting plate.

[0012] Preferably, the top of the movable plate is located inside the fixed frame, and the movable plate slides against the inner wall of the fixed frame. The size of the movable plate is larger than the size of the positioning slot.

[0013] Preferably, displacement grooves are provided on the spiral spring base at positions corresponding to the connecting rod and the L-shaped rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting a positioning component, allows the positioning block to leave the positioning groove on the positioning plate by rotating the rotating ring, and also allows the insertion rod to leave the insertion hole on the positioning post. This allows the connecting sleeve, top limiting plate, side limiting plate and other structures to be moved upward and removed, thereby removing the main body of the hairspring, and thus quickly disassembling and assembling the main body of the hairspring.

[0016] 2. By setting a side limiting plate, the structure of this utility model can be length adjusted, thereby adjusting the distance between the top limiting plate and the hairspring base, so as to limit the hairspring body of different sizes, which is beneficial to the use of instrument hairspring assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the separation structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting structure of the main body of the hairspring of this utility model;

[0020] Figure 4 This is a schematic diagram of the side limiting plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the main structure of the hairspring of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the hairspring chassis of this utility model;

[0023] Figure 7 This is a schematic diagram of the positioning component of this utility model.

[0024] In the diagram: 1. Hairspring base; 2. Spindle; 3. Hairspring body; 4. Positioning pin; 5. Intermediate block; 6. Mating groove; 7. Mating block; 8. Connecting sleeve; 9. Top limiting plate;

[0025] 10. Side limiting plate; 1001. Fixing frame; 1002. Movable plate; 1003. Threaded groove; 1004. Adjusting bolt;

[0026] 11. Positioning plate; 12. Positioning slot;

[0027] 13. Positioning assembly; 1301. Positioning groove; 1302. Positioning block; 1303. Return spring; 1304. Connecting rod; 1305. Rotary ring; 1306. Insertion hole; 1307. Insertion rod; 1308. L-shaped rod; 14. Concave hole. Detailed Implementation

[0028] 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.

[0029] like Figures 1 to 7 As shown, this utility model provides a combined instrument hairspring assembly, including a hairspring base 1, a rotating shaft 2 rotatably connected to the top center of the hairspring base 1, a hairspring body 3 disposed on the hairspring base 1, a positioning post 4 fixedly connected to the outer end face of the hairspring body 3, a middle block 5 fixedly connected to the inner end face of the hairspring body 3, a mating groove 6 opened on the middle block 5, a mating block 7 disposed in the mating groove 6, the mating block 7 fixed to the outer side of the rotating shaft 2, a connecting sleeve 8 sleeved on the outer side of the rotating shaft 2, a plurality of evenly distributed top surface limiting plates 9 fixedly connected to the outer wall of the connecting sleeve 8, a side limiting plate 10 disposed at the bottom position of the end of the top surface limiting plate 9 away from the connecting sleeve 8, a positioning insert plate 11 fixedly connected to the bottom of the side limiting plate 10, a positioning slot 12 opened on the hairspring base 1 at the position corresponding to the positioning insert plate 11, the positioning insert plate 11 extending into the positioning slot 12, a positioning component 13 disposed on the hairspring base 1, and the positioning component 13 movably connected to the positioning insert plate 11;

[0030] The positioning assembly 13 includes a positioning groove 1301 on the side wall of the positioning plate 11. A positioning block 1302 is provided in the positioning groove 1301. A return spring 1303 is connected to the side of the positioning block 1302 away from the positioning plate 11. A connecting rod 1304 is fixedly connected to the bottom of the positioning block 1302 near the return spring 1303. A rotating ring 1305 is fixedly connected to the bottom of the connecting rod 1304. The rotating ring 1305 is rotatably connected to the hairspring base 1. By rotating the rotating ring 1305, the positioning block 1302 can be moved away from the positioning groove 1301 on the positioning plate 11, and the insertion rod 1307 can be moved away from the insertion hole 1306 on the positioning post 4. The connecting sleeve 8, the top limiting plate 9, the side limiting plate 10 and other structures can be moved upward and removed, and the hairspring body 3 can be removed. The hairspring body 3 can be quickly disassembled and assembled.

[0031] Specifically, a recessed hole 14 is provided on the main body 3 of the hairspring, corresponding to the position of the positioning post 4, and the bottom end of the positioning post 4 extends into the recessed hole 14.

[0032] Furthermore, the positioning post 4 inside the recess 14 has an insertion hole 1306 on its side wall, and an insertion rod 1307 is provided in the insertion hole 1306. The insertion rod 1307 is fixedly connected to an L-shaped rod 1308, and the L-shaped rod 1308 is fixedly connected to a rotating ring 1305 to position and fix the positioning post 4.

[0033] Furthermore, the side limiting plate 10 includes a fixing frame 1001 that is fixedly connected to the top limiting plate 9 on the top surface. A movable plate 1002 is provided inside the fixing frame 1001. A threaded groove 1003 is provided at the middle of the top surface of the movable plate 1002. An adjusting bolt 1004 is provided on the top limiting plate 9 at a position corresponding to the threaded groove 1003. The screw of the adjusting bolt 1004 passes through the top limiting plate 9 and is threadedly connected to the threaded groove 1003. The side limiting plate 10 can be adjusted in length, thereby adjusting the distance between the top limiting plate 9 and the hairspring base 1, so as to limit the hairspring body 3 of different sizes, which is beneficial to the use of the instrument hairspring assembly.

[0034] It is worth noting that the top of the movable plate 1002 is located inside the fixed frame 1001, and the movable plate 1002 slides against the inner wall of the fixed frame 1001. The size of the movable plate 1002 is larger than the size of the positioning slot 12.

[0035] It is worth noting that displacement grooves are provided on the spiral spring base 1 at positions corresponding to the connecting rod 1304 and the L-shaped rod 1308, which facilitates the displacement of the connecting rod 1304, the L-shaped rod 1308 and other structures inside the spiral spring base 1.

[0036] Working principle and process: In use, rotate the rotating ring 1305 of the connecting hairspring base 1, which in turn drives the connecting rod 1304 and the positioning block 1302 to move until the positioning block 1302 completely leaves the positioning groove 1301. At the same time, the L-shaped rod 1308 drives the insertion rod 1307 to leave the insertion hole 1306. Pull the top limiting plate 9 upward to remove the connecting sleeve 8, the top limiting plate 9, the side limiting plate 10 and other structures. Then pull the hairspring body 3 upward to remove it, thus achieving the purpose of quick disassembly and assembly of the hairspring body 3. If necessary, the adjusting bolt 1004 of the side limiting plate 10 can be rotated, which drives the movable plate 1002 to move up and down in the fixed frame 1001 under the action of the threaded groove 1003. This can adjust the length of the side limiting plate 10, and thus adjust the distance between the top limiting plate 9 and the hairspring base 1, so as to limit the hairspring body 3 of different sizes, which is beneficial to the use of the instrument hairspring assembly.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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 combined instrument hairspring assembly, comprising a hairspring chassis (1), characterized in that: A rotating shaft (2) is rotatably connected to the top center of the hairspring base (1). A hairspring body (3) is provided on the hairspring base (1). A positioning post (4) is fixedly connected to the outer end face of the hairspring body (3). A middle block (5) is fixedly connected to the inner end face of the hairspring body (3). A mating groove (6) is provided on the middle block (5). A mating block (7) is provided in the mating groove (6). The mating block (7) is fixed to the outside of the rotating shaft (2). A connecting sleeve (8) is sleeved on the outside of the rotating shaft (2). The outer wall of the connecting sleeve (8) is fixed. A plurality of evenly distributed top limiting plates (9) are fixedly connected. A side limiting plate (10) is provided at the bottom of the end of the top limiting plate (9) away from the connecting sleeve (8). A positioning insert plate (11) is fixedly connected to the bottom of the side limiting plate (10). A positioning slot (12) is provided on the hairspring base (1) at the position corresponding to the positioning insert plate (11). The positioning insert plate (11) extends into the positioning slot (12). A positioning component (13) is provided on the hairspring base (1). The positioning component (13) is movably connected to the positioning insert plate (11). The positioning component (13) includes a positioning groove (1301) opened on the side wall of the positioning insert plate (11). A positioning block (1302) is provided in the positioning groove (1301). A return spring (1303) is connected to the side of the positioning block (1302) away from the positioning insert plate (11). A connecting rod (1304) is fixedly connected to the bottom of the positioning block (1302) near the return spring (1303). A rotating ring (1305) is fixedly connected to the bottom of the connecting rod (1304). The rotating ring (1305) is rotatably connected to the hairspring base (1).

2. The combined instrument hairspring assembly according to claim 1, characterized in that: A recessed hole (14) is provided on the main body (3) of the hairspring, corresponding to the position of the positioning post (4), and the bottom end of the positioning post (4) extends into the recessed hole (14).

3. A combined instrument hairspring assembly according to claim 2, characterized in that: The positioning post (4) inside the recess (14) has an insertion hole (1306) on its side wall. An insertion rod (1307) is provided in the insertion hole (1306). An L-shaped rod (1308) is fixedly connected to the insertion rod (1307). A rotating ring (1305) is fixedly connected to the L-shaped rod (1308).

4. A combined instrument hairspring assembly according to claim 1, characterized in that: The side limiting plate (10) includes a fixed frame (1001) that is fixedly connected to the top limiting plate (9) on the top surface. A movable plate (1002) is provided inside the fixed frame (1001). A threaded groove (1003) is provided at the middle position of the top surface of the movable plate (1002). An adjusting bolt (1004) is provided on the top limiting plate (9) at a position corresponding to the threaded groove (1003). The screw of the adjusting bolt (1004) passes through the top limiting plate (9) and is threadedly connected to the threaded groove (1003).

5. A combined instrument hairspring assembly according to claim 4, characterized in that: The top of the movable plate (1002) is located inside the fixed frame (1001), and the movable plate (1002) slides against the inner wall of the fixed frame (1001). The size of the movable plate (1002) is larger than the size of the positioning slot (12).

6. A combined instrument hairspring assembly according to claim 3, characterized in that: Displacement grooves are provided on the spiral spring base (1) at positions corresponding to the connecting rod (1304) and the L-shaped rod (1308).

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