Anti-seismic and anti-falling structure of combination instrument

Abstract

The utility model provides an anti-shock and anti-drop structure of a combination instrument, which relates to the field of instrument panel assembly and comprises an instrument shell, a bolt seat integrally formed on the outer edge of the instrument shell, a connecting bolt in threaded connection with the bolt seat, an anti-drop groove arranged on the upper side of the bolt seat, and a ratchet wheel piece integrally formed on the bottom wall of the anti-drop groove. The connecting bolt is sleeved with a locking ring, a plurality of locking rods are arranged on the locking ring in a sliding and penetrating mode, the lower ends of the locking rods abut against and are clamped to the ratchet wheel piece, the connecting bolt is further sleeved with a locking spring, and the locking spring abuts against the position between the top of the locking rod and a nut of the connecting bolt. An unlocking sleeve is connected to the outer side of the connecting bolt in a threaded mode, a limiting ring is inwards arranged at the bottom of the unlocking sleeve, and the limiting ring abuts against the bottom of the locking ring. The locking rod abuts against the ratchet wheel piece, one-way locking of the connecting bolt is achieved, and loosening of the connecting bolt is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument panel assembly, in particular to a shock-resistant and anti-detachment structure of a combined instrument. Background Art

[0002] The instrument is the interactive interface between people and cars, providing the driver with the required information such as car operating parameters, faults, mileage, etc. It is an indispensable component of every car.

[0003] At present, when installing the instrument panel on the vehicle, the instrument panel needs to be clamped on the vehicle body shell. During installation, it is basically fixed with bolts, and only part of the instrument panel is fixed. The use environment of agricultural machinery is usually accompanied by severe vibration, and the vibration will cause the bolts used to fix the instrument panel to twist and loosen. After the bolts are loose, the instrument panel will shake more violently with the agricultural machinery body, causing damage to the instrument panel. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a shock-resistant and anti-drop structure for a combination instrument, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A combination instrument anti-seismic and anti-slip structure comprises an instrument housing, an outer edge of the instrument housing is integrally formed with a bolt seat, a connecting bolt is threadedly connected to the bolt seat, an anti-slip groove is provided on the upper side of the bolt seat, a ratchet piece is integrally formed on the bottom wall of the anti-slip groove, a locking ring is provided outside the connecting bolt, a plurality of locking rods are slidably penetrated on the locking ring, the lower end of the locking rod is abutted and clamped on the ratchet piece, a locking spring is also sleeved outside the connecting bolt, and the locking spring abuts between the top of the locking rod and the nut of the connecting bolt.

[0009] Preferably, the ratchet plate includes a fixed ring plate integrally formed with the anti-slip groove and a plurality of ratchet teeth arranged on the side of the fixed plate facing away from the bottom wall of the anti-slip groove, the top surface of the ratchet teeth is arranged as an inclined sliding surface, the side surface of the ratchet teeth is arranged as a vertical surface, the lower end of the locking rod abuts against the inclined sliding surface, and the side wall is clamped on the vertical surface.

[0010] Preferably, the locking ring has a plurality of sliding holes distributed around its circumference, the locking rod is inserted into the sliding hole, a limiting cap is provided on the top of the locking rod, and the width of the limiting cap is greater than the inner diameter of the sliding hole.

[0011] Preferably, an unlocking sleeve is provided on the outer side of the connecting bolt, and the unlocking sleeve is slidably connected in the anti-slip groove. The unlocking sleeve extends from top to bottom along the connecting bolt, and a limiting ring is provided inward at the bottom. The limiting ring abuts against the bottom of the locking ring, and the bottom end of the locking rod extends out of the lower end of the unlocking sleeve.

[0012] Preferably, the inner wall of the unlocking sleeve is provided with an internal thread from top to bottom, the nut of the connecting bolt is provided with an external thread, and the unlocking sleeve is threadedly connected to the nut of the connecting bolt.

[0013] Preferably, a magnetic ring is sleeved on the outer side of the connecting bolt, the magnetic ring is arranged between the locking spring and the locking rod, and the locking rod is attracted to the magnetic ring.

[0014] Preferably, a screw groove is provided on the top of the nut of the connecting bolt.

[0015] Preferably, a screw ring is provided on the top outer edge of the unlocking sleeve.

[0016] (III) Beneficial effects

[0017] The utility model provides a combination instrument anti-vibration and anti-drop structure, which has the following beneficial effects:

[0018] 1. In this technical solution, an anti-slip groove is provided on the bolt seat, and a ratchet piece is integrally formed at the bottom of the anti-slip groove. The locking rod extends through the sliding on the locking ring to contact the ratchet teeth of the ratchet piece and lock it in one direction. When the connecting bolts are screwed to assemble the instrument housing, the locking rod slides on the inclined sliding surface of the ratchet teeth through the screwing force, and the height change of the inclined sliding surface is provided by the contraction of the locking spring. When the assembly is completed, the locking rod contacts the ratchet teeth under the action of the locking spring. When vibration occurs, the bolt has a reverse loosening and rotating tendency. Since the locking rod is clamped on the vertical surface of the ratchet teeth, the connecting screw cannot be loosened, thereby achieving an anti-seismic effect.

[0019] 2. In this technical solution, an unlocking sleeve is sleeved on the nut of the connecting bolt. The unlocking sleeve is manually rotated to make the unlocking sleeve move upward relative to the connecting bolt. During this process, the limiting ring at the bottom of the unlocking sleeve contacts and pulls the locking ring to move upward, compressing the locking spring and pulling up the locking rod to disengage it from the ratchet teeth. This operation is to unlock the connecting bolt. After the unlocking is completed, the connecting bolt can be rotated to inspect and replace the instrument housing.

[0020] 3. The technical solution provides a magnetic ring which can attract the locking rod to ensure synchronous movement of the locking rod and the locking spring. On the other hand, it replaces the direct contact between the locking rod and the spring, thereby increasing the contact area with the end of the spring and avoiding misalignment of the locking rod and the spring due to too small a contact area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a combination instrument anti-seismic and anti-detachment structure of the utility model;

[0022] Figure 2 for Figure 1 A cross-sectional view of

[0023] Figure 3 It is a structural schematic diagram of the instrument housing in the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the ratchet piece in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the connecting bolt in the utility model;

[0026] Figure 6 for Figure 5 A cross-sectional view of

[0027] Figure 7 It is a partial schematic diagram of the connecting bolt in the utility model.

[0028] In the figure: 1. Instrument housing; 2. Bolt seat; 3. Connecting bolt; 4. Anti-slip groove; 5. Ratchet plate; 51. Fixed ring plate; 52. Ratchet teeth; 521. Inclined sliding surface; 522. Vertical surface; 6. Locking ring; 7. Locking rod; 8. Limiting cap; 9. Locking spring; 10. Magnetic ring; 11. Unlocking sleeve; 12. Limiting ring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] The utility model provides a combination instrument anti-vibration and anti-drop structure.

[0031] like Figure 1-7As shown, it includes an instrument housing 1, the outer edge of the instrument housing 1 is integrally formed with a bolt seat 2, a connecting bolt 3 is threadedly connected to the bolt seat 2, the top of the nut of the connecting bolt 3 is provided with a screwing groove, an anti-slip groove 4 is opened on the upper side of the bolt seat 2, and a ratchet piece 5 is integrally formed on the bottom wall of the anti-slip groove 4, and the ratchet piece 5 includes a fixed ring piece 51 integrally formed with the anti-slip groove 4 and a plurality of ratchet teeth 52 are arranged on the side of the fixed piece facing away from the bottom wall of the anti-slip groove 4, and the top surface of the ratchet teeth 52 is arranged to be inclined and slideable. The ratchet teeth 52 have a vertical surface 522 on their sides. A locking ring 6 is provided on the outer sleeve of the connecting bolt 3. A plurality of vertically extending limiting grooves are provided on the outer wall of the connecting bolt 3. A limiting slider is provided on the inner wall of the locking ring 6. The limiting slider is slidably connected in the limiting groove. The locking ring 6 has a plurality of sliding holes distributed around its circumference. A plurality of locking rods 7 are slidably penetrated on the locking ring 6. The locking rods 7 are penetrated in the sliding holes. A limiting cap 8 is provided on the top of the locking rod 7. The limiting cap 8 has a width greater than the inner diameter of the sliding hole, the lower end of the locking rod 7 abuts against the inclined sliding surface 521, and the side wall is clamped on the vertical surface 522. A locking spring 9 is sleeved on the outside of the connecting bolt, and the locking spring 9 abuts between the top of the locking rod 7 and the nut of the connecting bolt 3. A magnetic ring 10 is sleeved on the outside of the connecting bolt 3, and the magnetic ring 10 is arranged between the locking spring 9 and the locking rod 7. The locking rod 7 is attracted by the magnetic ring 10, and an unlocking sleeve 11 is sleeved on the outside of the connecting bolt 3. The inner wall of the unlocking sleeve 11 is provided with an internal thread from top to bottom, and the nut of the connecting bolt 3 is provided with an external thread. The unlocking sleeve 11 is threadedly connected to the nut of the connecting bolt 3. The unlocking sleeve 11 is slidably connected in the anti-slip groove 4. A screwing ring is provided on the top outer edge of the unlocking sleeve 11. The unlocking sleeve 11 extends from top to bottom along the connecting bolt 3, and a limiting ring 12 is provided inwardly at the bottom. The limiting ring 12 abuts against the bottom of the locking ring 6, and the bottom end of the locking rod 7 extends out of the lower end of the unlocking sleeve 11.

[0032] The locking rod 7 is unable to rotate relative to the ratchet plate 5, that is, the connecting bolt 3 cannot rotate relative to the ratchet plate 5, thereby completing the locking of the connecting bolt 3 and effectively preventing the connecting bolt 3 from loosening due to vibration.

[0033] In addition, the unlocking sleeve provided in the utility model and cooperating with the thread of the connecting bolt nut can compress the locking spring and lift the locking ring by rotating the unlocking sleeve, so that the locking rod is disengaged from the ratchet piece to achieve unlocking, which can facilitate the inspection and disassembly of the instrument housing.

[0034] 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. A combination instrument anti-seismic and anti-detachment structure, comprising an instrument housing, wherein the outer edge of the instrument housing is integrally formed with a bolt seat, and is characterized in that: A connecting bolt is threadedly connected to the bolt seat, an anti-slip groove is provided on the upper side of the bolt seat, a ratchet piece is integrally formed on the bottom wall of the anti-slip groove, a locking ring is arranged outside the connecting bolt, a plurality of locking rods are slidably passed through the locking ring, the lower end of the locking rod is abutted and clamped on the ratchet piece, a locking spring is also sleeved outside the connecting bolt, the locking spring abuts between the top of the locking rod and the nut of the connecting bolt.

2. The anti-seismic and anti-detachment structure of a combination instrument according to claim 1, characterized in that: The ratchet plate includes a fixed ring plate integrally formed with the anti-slip groove and a plurality of ratchet teeth arranged on the side of the fixed plate facing away from the bottom wall of the anti-slip groove, the top surface of the ratchet teeth is arranged as an inclined sliding surface, the side surface of the ratchet teeth is arranged as a vertical surface, the lower end of the locking rod abuts against the inclined sliding surface, and the side wall is clamped on the vertical surface.

3. The anti-seismic and anti-detachment structure of a combination instrument according to claim 2, characterized in that: The locking ring is provided with a plurality of sliding holes distributed around its circumference, the locking rod is inserted into the sliding hole, a limiting cap is arranged on the top of the locking rod, and the width of the limiting cap is greater than the inner diameter of the sliding hole.

4. The anti-seismic and anti-detachment structure of a combination instrument according to claim 3, characterized in that: An unlocking sleeve is sleeved on the outer side of the connecting bolt, and the unlocking sleeve is slidably connected in the anti-slip groove. The unlocking sleeve extends from top to bottom along the connecting bolt, and a limiting ring is arranged inward at the bottom. The limiting ring abuts against the bottom of the locking ring, and the bottom end of the locking rod extends out of the lower end of the unlocking sleeve.

5. The anti-seismic and anti-detachment structure of a combination instrument according to claim 4, characterized in that: The inner wall of the unlocking sleeve is provided with an internal thread from top to bottom, the nut of the connecting bolt is provided with an external thread, and the unlocking sleeve is threadedly connected to the nut of the connecting bolt.

6. The anti-seismic and anti-detachment structure of a combination instrument according to claim 5, characterized in that: A magnetic ring is also sleeved on the outer side of the connecting bolt, and the magnetic ring is arranged between the locking spring and the locking rod, and the locking rod is attracted to the magnetic ring.

7. The anti-seismic and anti-detachment structure of a combination instrument according to claim 6, characterized in that: A screwing groove is arranged on the top of the nut of the connecting bolt.

8. The anti-seismic and anti-detachment structure of a combination instrument according to claim 7, characterized in that: A screw ring is arranged on the top outer edge of the unlocking sleeve.

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