CN204250370U - With the seat mechanical lock of restoring force - Google Patents
With the seat mechanical lock of restoring force Download PDFInfo
- Publication number
- CN204250370U CN204250370U CN201420726737.7U CN201420726737U CN204250370U CN 204250370 U CN204250370 U CN 204250370U CN 201420726737 U CN201420726737 U CN 201420726737U CN 204250370 U CN204250370 U CN 204250370U
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- China
- Prior art keywords
- piston
- lock
- hole
- fixed
- spring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model relates to a kind of seat mechanical lock with restoring force, comprise lock frame, sleeve, lock shaft, piston, first spring, second spring, hold-down mechanism and stay cord, orthogonal cross through hole and vertical through holes is provided with in lock frame, one end of sleeve is fixed on lock frame, through hole in sleeve is communicated with vertical through holes, piston is arranged in cross through hole, piston side is provided with through hole, lock shaft and vertical through holes join the through hole being combined through piston, the left side of piston is provided with hold-down mechanism, the right side of piston is provided with the first spring, stay cord is connected with hold-down mechanism and can controls hold-down mechanism and promote piston to the right, second spring housing is on lock shaft, second lower spring end is fixed with lock arch, upper end and lock shaft top are fixed.The utility model can carry out the locking and unlocking to backrest, can bidirectional stress, and in use can provide restoring force, the utility model is lightly reliable, easy to operate.
Description
Technical field
the utility model relates to a kind of mechanical lock, is specifically related to a kind of seat mechanical lock with restoring force.
Background technology
In order to meet comfortable effect and other specific purposes, people need the backrest of seat to have the function of angular adjustment, current is hydraulic lock and recliner for the unblock of backrest angle adjustment and the mechanism overwhelming majority of locking, although these two kinds of product technology are comparatively ripe but also have obvious shortcoming: the locking direction of hydraulic lock is unidirectional, itself can only bear pressure and can not bear pulling force, use the seat of hydraulic lock, as aircraft passenger seat, because the mechanical characteristic of hydraulic lock limits, all can not the safety strap of mounting strap shoulder belt, therefore the seat of mounting strap shoulder belt safety strap all must can not adopt hydraulic lock structure at aviator's seat etc., though recliner can two-way load with its adjustment backrest angle time need constantly to rotate control handle, waste time and energy very inconvenient, and recliner volume and weight is all larger.
Utility model content
In order to overcome above-mentioned problem, the utility model provides a kind of seat mechanical lock with restoring force, and this mechanical lock can carry out the locking and unlocking to backrest, and can bidirectional stress, this mechanical lock in use can provide restoring force, and this mechanical lock is lightly reliable, easy to operate.
In order to solve above-mentioned technical matters, the utility model provides a kind of seat mechanical lock with restoring force, comprise lock frame, sleeve, lock shaft, piston, first spring, second spring, hold-down mechanism and stay cord, lock frame is provided with orthogonal cross through hole and vertical through holes, one end of sleeve is fixed on lock frame, through hole in sleeve is communicated with vertical through holes, from left to right piston is provided with successively in cross through hole, first spring and catch, piston coordinates with hole, place, piston side is provided with through hole, the two ends of the first spring contact with catch with piston all the time, catch is fixed in lock frame by back-up ring, lock shaft and vertical through holes join the through hole being combined through piston, the bottom of lock shaft is arranged in sleeve, second spring housing is on lock shaft, the bottom of the second spring is fixed with lock arch, the top of the second spring and the top of lock shaft are fixed, hold-down mechanism be fixed on lock frame left side and with piston left contact, stay cord is connected with hold-down mechanism and hold-down mechanism can be made to promote piston to the right.
Described steel ball is arranged on the left end of cross through hole, steel ball all the time with piston left contact, fixed block is fixed on the left side of lock frame, fixed block is provided with through groove, the width of groove is less than the diameter of steel ball, is provided with briquetting in groove, and briquetting is fixed in the groove of fixed block through the side of briquetting by tack axle, the bottom surface of briquetting contacts with steel ball all the time, and one end of stay cord is fixed on briquetting.
Described briquetting is provided with a pair monaural ring, one end of stay cord is fixed with steel ball, and the outshot of steel ball both sides is separately positioned in the hole of monaural ring.
The through hole of described piston is waist shaped hole, and the left part of waist shaped hole is half-turn unthreaded hole, right part is half-turn tapped bore, lock shaft is provided with except attaching parts the outside thread matched with the screw thread in piston.
The bottom of described lock shaft is fixed with retaining nut, and retaining nut is arranged in sleeve through hole.
A part of rope of described stay cord is limited in overcoat, and overcoat is fixed on fixed block, and the operating side of stay cord is provided with steel ball, and steel ball size is greater than the aperture of overcoat.
The beneficial effects of the utility model are: by the cooperation of stay cord, hold-down mechanism, lock shaft, the first spring and piston, can realize the locking and unlocking; In releasing process, by the cooperation of the second spring and lock shaft also with certain restoring force; The utility model can bidirectional stress, lightly reliable, easy to operate.
Accompanying drawing explanation
Fig. 1 is cutaway view of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is right elevation of the present utility model.
Fig. 4 is left view of the present utility model.
Fig. 5 is the cutaway view of lock frame of the present utility model.
Fig. 6 is the left view of lock frame of the present utility model.
Fig. 7 is the birds-eye view of piston of the present utility model.
Fig. 8 is the cutaway view of piston of the present utility model.
In figure: 1-locks frame; 2-sleeve; 3-lock shaft; 4-retaining nut; 5-briquetting; 6-fixed block; 7-tack axle; 8-steel ball; 9-piston; 10-first spring; 11-catch; 12-back-up ring; 13-stay cord; 14-second spring.
Detailed description of the invention
below by detailed description of the invention, the utility model is described in further detail.
As shown in Figures 1 to 6, a kind of seat mechanical lock with restoring force comprises lock frame 1, sleeve 2, lock shaft 3, piston 9, first spring 10, second spring 14, hold-down mechanism and stay cord 13, lock frame 1 is provided with orthogonal cross through hole and vertical through holes, one end of sleeve 2 is fixed on lock frame 1, through hole in sleeve 2 is communicated with vertical through holes, from left to right piston 9 is provided with successively in cross through hole, first spring 10 and catch 11, the two ends of the first spring 10 contact with catch 11 with piston 9 all the time, catch 11 is fixed in lock frame 1 by back-up ring 12, lock shaft 3 and vertical through holes join the through hole being combined through piston 9 side, the bottom of lock shaft 3 is arranged in sleeve 2, second spring 14 is enclosed within lock shaft 3, the bottom of the second spring 14 is fixed with lock frame 1 top, the top of the second spring 14 and the top of lock shaft 3 are fixed, hold-down mechanism be fixed on lock frame 1 left side and with piston 9 left contact, stay cord 13 is connected with hold-down mechanism and hold-down mechanism can be driven to promote piston 9 to the right.
As shown in Figure 1, one end of sleeve 2 is provided with negative thread, and one end of lock frame 1 is provided with the outside thread matched, and lock frame 1 and sleeve 2 are threaded connection.
As shown in Figure 1, the bottom of described lock shaft 3 is fixed with retaining nut 4, and retaining nut 4 is arranged in sleeve 2 through hole, when retaining nut 4 is for preventing lock shaft 3 upward movement, stretches out the vertical through holes of lock frame 1 and coming off with lock frame 1.
As shown in Figure 7 and Figure 8, in the present embodiment, the through hole of described piston 9 is waist shaped hole, and the left part of waist shaped hole is half-turn unthreaded hole, right part is half-turn tapped bore, lock shaft 3 is provided with except attaching parts the outside thread matched with the negative thread of piston.
As shown in Figures 1 to 4, described hold-down mechanism comprises fixed block 6, briquetting 5, steel ball 8 and tack axle 7, described steel ball 8 is arranged on the left end of cross through hole, steel ball 8 all the time with piston 9 left contact, fixed block 6 is fixed on the left side of lock frame 1, fixed block 6 is provided with through groove, the width of groove is less than the diameter of steel ball 8, for limiting steel ball 8, prevent steel ball 8 from dropping out from groove, briquetting 5 is provided with in groove, briquetting 5 is fixed in the groove of fixed block 6 through the side of briquetting 5 by tack axle 7, briquetting 5 can rotate around tack axle 7, the bottom surface of briquetting 5 contacts with steel ball 8 all the time, one end of stay cord 13 is fixed on briquetting 5.
As shown in Figure 2 and Figure 4, in the present embodiment, the top of described briquetting 5 is provided with a pair monaural ring, one end of stay cord 13 is fixed with steel ball, the outshot of steel ball both sides is separately positioned in the hole of monaural ring, this connection mode makes the stressed of point of connection can not be too concentrated, improves the life-span of stay cord 13 point of connection.
As shown in Figure 2, in the present embodiment, a part of rope of described stay cord 13 is limited in overcoat, overcoat is fixed on fixed block 6, and the operating side of stay cord 13 is provided with steel ball, and steel ball size is greater than the aperture of overcoat, wherein, overcoat, for limiting the path of stay cord 13, prevents stay cord 13 to be wound around, to tie a knot and to block other device, cannot pull stay cord 13 when steel ball prevents the operating side of stay cord 13 from entering overcoat.
In the present invention, lock shaft 3 is limited in vertical through holes, can only vertically through hole up-and-down movement; Piston 9 is limited in cross through hole, can only transversely through hole side-to-side movement.
During initial condition, under the pressure of the first spring 10 pairs of pistons 9, lock shaft 3 coordinates with the half-turn tapped bore of waist shaped hole right part in piston 9, and now lock shaft is in the lock state, can not up-and-down movement.
When pulling stay cord 13, stay cord 13 drives briquetting 5 to rotate around tack axle 7, the application force that the bottom surface extruding steel ball 8 of briquetting overcomes the first spring 10 moves right, when the distance that steel ball 8 drives piston 9 to move right exceedes the tooth depth of screw thread, lock shaft 3 is separated with piston 9, and now lock shaft 3 unlocks, lock shaft 3 can up-and-down movement, now the second spring 14 is in extended state, and under the effect of the second spring 14, lock shaft 3 has downward restoring force; When unclamping stay cord 13, under the first spring 10 thrust left, half cast tapped bore of piston 9 coordinates with lock shaft 3, and lock shaft 3 enters lock-out state.
As shown in Figures 1 to 4, in the present embodiment, the top of described lock shaft 3 and the bottom of sleeve 2 are provided with attaching parts, attaching parts bottom sleeve 2 is fixing on the seat, and the attaching parts at lock shaft 3 top is connected with backrest, and lock shaft 3 can realize backrest by up-and-down movement and rotate around anchor shaft, lock shaft 3 coordinates the locking and unblock that can realize backrest with piston 9, when pulling stay cord 13 lock shaft 3 to be separated with piston 9, the second spring 14 is in extended state, for backrest provides restoring force.
It should be noted that; the foregoing is only preferred embodiment of the present utility model; instead of the restriction to technical solutions of the utility model, any equivalent replacement of doing the utility model technical characteristic or corresponding improvement, still within protection domain of the present utility model.
Claims (6)
1. the seat mechanical lock with restoring force, it is characterized in that: comprise lock frame, sleeve, lock shaft, piston, first spring, second spring, hold-down mechanism and stay cord, lock frame is provided with orthogonal cross through hole and vertical through holes, one end of sleeve is fixed on lock frame, through hole in sleeve is communicated with vertical through holes, from left to right piston is provided with successively in cross through hole, first spring and catch, piston coordinates with hole, place, piston side is provided with through hole, the two ends of the first spring contact with catch with piston all the time, catch is fixed in lock frame by back-up ring, lock shaft and vertical through holes join the through hole being combined through piston, the bottom of lock shaft is arranged in sleeve, second spring housing is on lock shaft, the bottom of the second spring is fixed with lock arch, the top of the second spring and the top of lock shaft are fixed, hold-down mechanism be fixed on lock frame left side and with piston left contact, stay cord is connected with hold-down mechanism and hold-down mechanism can be made to promote piston to the right.
2. a kind of seat mechanical lock with restoring force as claimed in claim 1, it is characterized in that: described hold-down mechanism comprises fixed block, briquetting, steel ball and tack axle, described steel ball is arranged on the left end of cross through hole, steel ball all the time with piston left contact, fixed block is fixed on the left side of lock frame, fixed block is provided with through groove, the width of groove is less than the diameter of steel ball, briquetting is provided with in groove, briquetting is fixed in the groove of fixed block through the side of briquetting by tack axle, the bottom surface of briquetting contacts with steel ball all the time, and one end of stay cord is fixed on briquetting.
3. a kind of seat mechanical lock with restoring force as claimed in claim 2, it is characterized in that: described briquetting is provided with a pair monaural ring, one end of stay cord is fixed with steel ball, the outshot of steel ball both sides is separately positioned in the hole of monaural ring.
4. a kind of seat mechanical lock with restoring force as claimed in claim 1, it is characterized in that: the through hole of described piston is waist shaped hole, the left part of waist shaped hole is half-turn unthreaded hole, right part is half-turn tapped bore, lock shaft is provided with except attaching parts the outside thread matched with the screw thread in piston.
5. a kind of seat mechanical lock with restoring force as claimed in claim 1, is characterized in that: the bottom of described lock shaft is fixed with retaining nut, and retaining nut is arranged in sleeve through hole.
6. a kind of seat mechanical lock with restoring force as claimed in claim 1, is characterized in that: a part of rope of described stay cord is limited in overcoat, and overcoat is fixed on fixed block, and the operating side of stay cord is provided with steel ball, and steel ball size is greater than the aperture of overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726737.7U CN204250370U (en) | 2014-11-28 | 2014-11-28 | With the seat mechanical lock of restoring force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726737.7U CN204250370U (en) | 2014-11-28 | 2014-11-28 | With the seat mechanical lock of restoring force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204250370U true CN204250370U (en) | 2015-04-08 |
Family
ID=52954702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420726737.7U Withdrawn - After Issue CN204250370U (en) | 2014-11-28 | 2014-11-28 | With the seat mechanical lock of restoring force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204250370U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477394A (en) * | 2014-11-28 | 2015-04-01 | 航宇救生装备有限公司 | Seat mechanical lock with restoring force |
| CN115503963A (en) * | 2022-10-11 | 2022-12-23 | 中国民用航空飞行学院 | Adjusting actuator cylinder of aircraft-mounted seat backrest |
-
2014
- 2014-11-28 CN CN201420726737.7U patent/CN204250370U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477394A (en) * | 2014-11-28 | 2015-04-01 | 航宇救生装备有限公司 | Seat mechanical lock with restoring force |
| CN104477394B (en) * | 2014-11-28 | 2016-07-06 | 航宇救生装备有限公司 | Seat mechanical lock with restoring force |
| CN115503963A (en) * | 2022-10-11 | 2022-12-23 | 中国民用航空飞行学院 | Adjusting actuator cylinder of aircraft-mounted seat backrest |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |