Anti-falling combined instrument hairspring

Abstract

The utility model discloses an anti-falling combined instrument hairspring which comprises a hairspring chassis, a combined mounting sleeve is connected to the center of the top of the hairspring chassis in a penetrating mode, a hairspring inner pile is arranged on the combined mounting sleeve in a sliding and sleeving mode, a hairspring body is arranged on the outer wall of the hairspring inner pile, and an anti-falling mechanism is arranged on the hairspring chassis. The anti-disengaging mechanism comprises a connecting sleeve arranged above the balance spring inner pile, the bottom of the connecting sleeve is fixedly connected with a connecting column, the connecting column penetrates through the combined installation sleeve in a sliding mode, and four limiting grooves are formed in the top of the balance spring base plate. According to the anti-falling combined instrument hairspring, the periphery and the top of the hairspring body can be supported and limited through the arranged anti-falling mechanism, so that an all-around anti-falling effect can be provided for the hairspring body, use is more stable, meanwhile, the disassembly and assembly mode is easy, and follow-up overhaul and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument hairsprings, in particular to an anti-falling combined instrument hairspring. Background Art

[0002] The main function of the instrument hairspring is to make the instrument pointer run stably and accurately display the instrument readings. Its specific functions are: using the reaction torque generated by the hairspring to keep the movement gears in close contact, eliminate the unstable indication caused by the meshing clearance between teeth and the clearance between each transmission shaft and the connecting rod, so that the pointer is positioned and runs smoothly: after the pressure is eliminated, help the pointer return to zero position.

[0003] Announcement No. CN 219778532 U discloses an anti-falling structure for an instrument hairspring, which belongs to the technical field of instrument hairsprings and comprises a main body module and an anti-falling module, wherein the main body module comprises a chassis, a central axis is fixedly connected at the center of the top of the chassis, a hairspring body is arranged on the outer surface of the central axis, the anti-falling module comprises a rotating ring rotatably connected to the top of the chassis, four slide grooves are arranged in an annular shape and at equal distances on the top of the chassis, elastic components are slidably connected inside the four slide grooves, and through the arrangement of the rotating ring, the slide groove, the elastic component, the boosting component and the self-locking component, when hairspring bodies of different sizes need to be fixed and prevented from falling off, the positions of the four elastic components can be quickly adjusted, so that the structure can be convenient for fixing hairspring bodies of different sizes, so that the structure is suitable for hairspring bodies of different sizes, thereby improving the practicality of the structure when in use.

[0004] However, the anti-falling structure has the following shortcomings: when in use, the instrument hairspring can be supported by a plurality of elastic components on the outside of the hairspring body; however, since it does not support and limit the top of the hairspring body, it is easy to warp up during use, causing it to fall off, and the use effect is limited.

[0005] Therefore, the utility model provides an anti-falling combined instrument hairspring to solve the above-mentioned problem. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an anti-falling combined instrument hairspring to solve the above-mentioned problems.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: an anti-dropping combined instrument hairspring, comprising a hairspring chassis, a combined mounting sleeve is connected through the top center of the hairspring chassis, a hairspring inner pile is provided on the sliding sleeve of the combined mounting sleeve, a hairspring body is provided on the outer wall of the hairspring inner pile, and an anti-dropping mechanism is provided on the hairspring chassis;

[0008] The anti-slip mechanism includes a connecting sleeve arranged above the inner pile of the hairspring, the bottom of the connecting sleeve is fixedly connected with a connecting column, the connecting column slides through the combined mounting sleeve, the top of the hairspring chassis is provided with four limiting grooves, the bottom inner wall of the limiting groove is fixedly connected with an anti-deflection rod, the outer wall of the connecting sleeve is fixedly connected with four top protective plates, one side of the four top protective plates is fixedly connected with a side protective plate, the bottoms of the four side protective plates respectively slide and extend into the corresponding limiting grooves, the bottom of the side protective plate is provided with a card slot, and the top of the anti-deflection rod slides and extends into the corresponding card slot.

[0009] Preferably, the bottom of the hairspring chassis is fixedly connected to a fixing box, the bottom end of the connecting column slides and extends into the fixing box, the outer wall of the connecting column is provided with four slots, four telescopic sleeves are arranged in the fixing box, one end of the four telescopic sleeves is fixedly connected to a fastening plate, one side of the four fastening plates respectively slides and extends into the corresponding slots, and the connecting column can be conveniently fixed by using the provided fixing box, slots, telescopic sleeves and fastening plates, thereby facilitating the overall connection to be firmly connected.

[0010] Preferably, four threaded rods are rotatably connected to the outer wall of the fixed box, one end of the four threaded rods are respectively threadedly extended into the corresponding telescopic sleeves, and one end of the threaded rod away from the connecting column is fixedly connected to a handwheel. The combination of the threaded rod and the handwheel can facilitate the operator to control the movement of the telescopic sleeve.

[0011] Preferably, four bottom positioning grooves are formed at the bottom of the hairspring inner pile, and four protrusions are fixedly connected to the top of the hairspring chassis. The tops of the protrusions slide and extend into the corresponding bottom positioning grooves. The hairspring inner pile can be conveniently installed on the hairspring chassis by using the provided bottom positioning grooves and protrusions in combination.

[0012] Preferably, four top positioning grooves are provided on the top of the hairspring inner pile, and four positioning rods are fixedly connected to the bottom of the connecting sleeve. The bottom ends of the positioning rods slide and extend into the corresponding top positioning grooves. The connecting sleeve can be conveniently installed on the hairspring inner pile by using the provided top positioning grooves and positioning rods.

[0013] Preferably, a compression pad is fixedly connected to the bottom of the connecting sleeve, and the bottom of the compression pad contacts the top of the hairspring inner pile. The hairspring inner pile can be squeezed by the provided compression pad to facilitate tightening it.

[0014] Preferably, the outer wall of the telescopic sleeve is fixedly connected to two symmetrically distributed ear plates, and a plurality of sliding rods are fixedly connected inside the fixed box. The sliding rods slide through the corresponding ear plates, and the ear plates and sliding rods are used in combination to make the movement of the telescopic sleeve smoother.

[0015] Beneficial Effects

[0016] The utility model provides an anti-falling combined instrument hairspring. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The anti-falling combined instrument hairspring can support and limit the surroundings and the top of the hairspring body through the anti-falling mechanism, thereby providing a full range of anti-falling effects, making it more stable to use, and the disassembly and assembly method is simple, which is convenient for subsequent inspection and maintenance.

[0018] (2) The anti-dropping combined instrument hairspring can fix the connecting column by means of four symmetrically distributed fastening plates arranged in the fixing box, clamping it inside the fixing box, thereby fixing the connecting sleeve and facilitating disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0022] Figure 4 It is the internal assembly diagram of the fixed box in the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixed box in the utility model in a top view.

[0024] In the figure: 1. hairspring chassis; 2. combined mounting sleeve; 3. hairspring inner pile; 4. hairspring body; 5. connecting sleeve; 6. connecting column; 7. limit groove; 8. anti-bias rod; 9. top protective plate; 10. side protective plate; 11. card slot; 12. fixing box; 13. slot; 14. telescopic sleeve; 15. fastening plate; 16. threaded rod; 17. handwheel; 18. bottom positioning groove; 19. bump; 20. top positioning groove; 21. positioning rod; 22. extrusion pad; 23. ear plate; 24. slide rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] See also Figure 1 , Figure 2 and Figure 3 , an anti-dropping combined instrument hairspring, comprising a hairspring chassis 1, a combined mounting sleeve 2 is connected through the top center of the hairspring chassis 1, a hairspring inner pile 3 is provided on the sliding sleeve of the combined mounting sleeve 2, a hairspring body 4 is provided on the outer wall of the hairspring inner pile 3, and an anti-dropping mechanism is provided on the hairspring chassis 1;

[0028] The anti-slip mechanism includes a connecting sleeve 5 arranged above the hairspring inner pile 3, the bottom of the connecting sleeve 5 is fixedly connected with a connecting column 6, the connecting column 6 slides through the combined mounting sleeve 2, four limiting grooves 7 are opened on the top of the hairspring chassis 1, the bottom inner wall of the limiting groove 7 is fixedly connected with an anti-deflection rod 8, the outer wall of the connecting sleeve 5 is fixedly connected with four top protective plates 9, one side of the four top protective plates 9 is fixedly connected with a side protective plate 10, the bottoms of the four side protective plates 10 respectively slide and extend into the corresponding limiting grooves 7, the bottom of the side protective plates 10 is opened with a slot 11, and the top of the anti-deflection rod 8 slides and extends into the corresponding slot 11.

[0029] Embodiment 2:

[0030] See also Figures 1 to 5 This embodiment provides a technical solution based on the first embodiment: the bottom of the hairspring chassis 1 is fixedly connected with a fixed box 12, the bottom end of the connecting column 6 slides and extends into the fixed box 12, the outer wall of the connecting column 6 is provided with four slots 13, four telescopic sleeves 14 are arranged in the fixed box 12, the telescopic sleeve 14 has a threaded surface inside, one end of the four telescopic sleeves 14 is fixedly connected with a fastening plate 15, one side of the four fastening plates 15 slides and extends into the corresponding slots 13 respectively; four threaded rods 16 are rotatably connected through the outer wall of the fixed box 12, one end of the four threaded rods 16 is threadedly extended into the corresponding telescopic sleeves 14 respectively, and the end of the threaded rod 16 away from the connecting column 6 is fixedly connected with a handwheel 17; the hairspring inner pile 3 Four bottom positioning grooves 18 are provided at the bottom, four protrusions 19 are fixedly connected to the top of the hairspring chassis 1, and the tops of the protrusions 19 slide and extend into the corresponding bottom positioning grooves 18; four top positioning grooves 20 are provided at the top of the hairspring inner pile 3, four positioning rods 21 are fixedly connected to the bottom of the connecting sleeve 5, and the bottom ends of the positioning rods 21 slide and extend into the corresponding top positioning grooves 20; a squeezing pad 22 is fixedly connected to the bottom of the connecting sleeve 5, and the squeezing pad 22 is made of rubber material, and the bottom of the squeezing pad 22 contacts the top of the hairspring inner pile 3; two symmetrically distributed ear plates 23 are fixedly connected to the outer wall of the telescopic sleeve 14, and a plurality of sliding rods 24 are fixedly connected to the fixed box 12, and the sliding rods 24 slide through the corresponding ear plates 23.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] Working principle: When in use, align the bottom positioning groove 18 at the bottom of the hairspring inner pile 3 with the protrusion 19 on the top of the hairspring chassis 1 and insert it, then insert the positioning rod 21 at the bottom of the connecting sleeve 5 into the top positioning groove 20 on the top of the hairspring inner pile 3, and at the same time insert the side protection plate 10 into the limit groove 7, and the anti-deflection rod 8 into the card slot 11, and then turn the hand wheel 17 in turn, the hand wheel 17 drives one end of the telescopic sleeve 14 threadedly connected to it through the threaded rod 16, and the telescopic sleeve 14 drives the fastening plate 15 to move until it is inserted into the slot 13, and the connecting column 6 is firmly fixed in the fixing box 12 to complete the assembly work.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

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

Claims

1. An anti-dropping combined instrument hairspring, comprising a hairspring chassis (1), characterized in that: A combined mounting sleeve (2) is connected and penetrated at the center of the top of the hairspring chassis (1); a hairspring inner pile (3) is provided on the sliding sleeve of the combined mounting sleeve (2); a hairspring body (4) is provided on the outer wall of the hairspring inner pile (3); and an anti-slip mechanism is provided on the hairspring chassis (1); The anti-drop mechanism comprises a connecting sleeve (5) arranged above the hairspring inner pile (3), the bottom of the connecting sleeve (5) is fixedly connected with a connecting column (6), the connecting column (6) slides through the combined mounting sleeve (2), the top of the hairspring chassis (1) is provided with four limiting grooves (7), the bottom inner wall of the limiting groove (7) is fixedly connected with an anti-deflection rod (8), the outer wall of the connecting sleeve (5) is fixedly connected with four top protective plates (9), one side of the four top protective plates (9) is fixedly connected with a side protective plate (10), the bottoms of the four side protective plates (10) respectively slide and extend into the corresponding limiting grooves (7), the bottom of the side protective plates (10) is provided with a clamping groove (11), and the top of the anti-deflection rod (8) slides and extends into the corresponding clamping groove (11).

2. The anti-falling combined instrument hairspring according to claim 1, characterized in that: The bottom of the hairspring chassis (1) is fixedly connected to a fixed box (12), the bottom end of the connecting column (6) slides and extends into the fixed box (12), the outer wall of the connecting column (6) is provided with four slots (13), four telescopic sleeves (14) are arranged in the fixed box (12), one end of each of the four telescopic sleeves (14) is fixedly connected to a fastening plate (15), and one side of the four fastening plates (15) slides and extends into the corresponding slots (13) respectively.

3. The anti-falling combined instrument hairspring according to claim 2, characterized in that: Four threaded rods (16) are rotatably connected to the outer wall of the fixed box (12), one end of the four threaded rods (16) respectively extends into the corresponding telescopic sleeves (14) through threads, and one end of the threaded rod (16) away from the connecting column (6) is fixedly connected to a hand wheel (17).

4. The anti-falling combined instrument hairspring according to claim 1, characterized in that: The bottom of the hairspring inner pile (3) is provided with four bottom positioning grooves (18), and the top of the hairspring chassis (1) is fixedly connected with four protrusions (19), and the tops of the protrusions (19) slide and extend into the corresponding bottom positioning grooves (18).

5. The anti-falling combined instrument hairspring according to claim 1, characterized in that: The top of the hairspring inner pile (3) is provided with four top positioning grooves (20), and the bottom of the connecting sleeve (5) is fixedly connected with four positioning rods (21), and the bottom ends of the positioning rods (21) slide and extend into the corresponding top positioning grooves (20).

6. The anti-falling combined instrument hairspring according to claim 1, characterized in that: The bottom of the connecting sleeve (5) is fixedly connected with a pressing pad (22), and the bottom of the pressing pad (22) is in contact with the top of the hairspring inner pile (3).

7. The anti-falling combined instrument hairspring according to claim 2, characterized in that: The outer wall of the telescopic sleeve (14) is fixedly connected to two symmetrically distributed ear plates (23), and a plurality of sliding rods (24) are fixedly connected inside the fixed box (12), and the sliding rods (24) slide through the corresponding ear plates (23).

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