TWM595443U - Fast locking structure of chair back and chair seat - Google Patents

Abstract

This creation relates to a quick lock structure for a seat back and a seat. It is mainly provided with a first engaging part and a second engaging part respectively on a seat chassis and a seat back bracket, and a set of standing parts is formed on the first engaging part A slot, and a clamping hole is provided on the bottom surface of the assembly groove, and the second engaging portion is correspondingly sleeved in the assembly groove by the slot of the assembly groove of the first engaging portion, and the bottom side of the second engaging portion is provided The elastic pin is correspondingly inserted into the locking hole of the set of vertical slots, and the combined design of the locking not only can easily complete the assembly of the seat back bracket and the seat chassis, but also can reliably prevent the seat back bracket and the seat chassis from riding Unexpected dangers such as loosening are not expected.

Description

Quick lock structure of seat back and seat

This creation is about a quick-lock structure of seat back and seat, especially a kind of assembly that can easily complete the seat back bracket and seat chassis, and can surely prevent the seat back chassis and seat chassis from unintentionally loosening when riding Quick lock structure.

The chair is a necessary furniture for home or office. Generally, the chair is mainly composed of a seat back and a seat. The seat can be used for the user's buttocks, and the seat back can support the user's back to lie down to provide people with a seat. Timely comfort.

In order to reduce the cost of transportation and warehousing of existing chairs, the industry will separate the back and seat of the chair and store them separately. When they are delivered to consumers, they will be assembled and combined. Please refer to the "Improvement of Office Chair" Structure, the existing chair back and seat assembly structure such as the "Office Chair Base and Back Structure" of China Announcement No. 527888 and the "backrest bracket assembly structure" of China Announcement No. M360631 are mainly in the seat and chair Each back is provided with a coupling groove, and two ends of an L-shaped connecting rod are respectively inserted into the coupling groove of the seat back and the seat, and the lock grooves of the seat back and the seat are each provided with a plurality of lock holes to connect with the L After the corresponding locking holes at the two ends of the connecting rod are matched, the locking joints are threaded with screws and other locking members to assemble and fix the seat back and the seat base.

However, the assembly of the chair back and the seat of the existing chair is mainly fixed by screw locking. On the assembly, the screw must be rotated one by one with a screwdriver into the corresponding locking holes of the L-shaped connecting rod and the seat back and the seat Here, not only is it troublesome and time-consuming to assemble, but after being used for a period of time, the screw screwed to the lock hole of the L-shaped link, the back of the seat and the seat of the seat is easy to lie or shake the chair repeatedly when the user rides on the chair Back, etc., and the screw is not expected to loosen or fall off, resulting in danger when riding the chair.

The reason is that, in view of the lack of assembly of the backrest and seat of the existing chair, the author used his many years of manufacturing and design experience and knowledge in the relevant field to assist him, and after many ingenuity, he created this creation.

This creation is about a quick lock structure for seat back and seat, the main purpose of which is to provide a simple and easy assembly of the seat back bracket and seat base chassis, and to prevent the seat back bracket and seat base chassis The quick-lock structure is expected to be released.

In order to achieve the above-mentioned implementation purposes, the author has developed the following quick-lock structure of the seat back and the seat base, which mainly includes a seat base chassis and a seat back bracket, and a first joint portion is provided at the rear end of the seat base chassis, And a set of upright grooves are formed on the first engagement portion, and at least one clamping hole is provided on the bottom surface of the upright grooves, and a second engagement portion is provided on the bottom end of the seat back bracket, and the second engagement portion is formed by the chair The notch of the assembling groove of the first engaging portion of the base chassis is correspondingly sleeved in the assembling groove, and at least one elastic pin is provided on the bottom side of the second engaging portion, and the elastic pin and the clamping hole of the assembling groove are provided Corresponding to insert card.

The quick-locking structure of the seat back and the seat as described above, wherein the first connecting portion of the seat chassis is formed with a U-shaped assembling section, and a fixing piece is combined with a cover at an open place above the assembling section, so that The fixed piece cover is formed to be closed on one side, and the set of vertical grooves is only left with a notch at the rear.

The quick lock structure for the seat back and the seat as described above, wherein a locking hole is provided on the fixing piece, and a perforation corresponding to the position of the locking hole is provided on the bottom surface of the vertical groove, and a locking fastener is provided so that The locking member passes through the perforation of the set up slot to lock and fix with the lock hole of the fixing piece, so that the lock upright is erected in the set up slot, and the second engaging portion of the seat back bracket is centered on the front side thereof A recessed portion is provided at the location, so that the recessed portion of the second connecting portion sleeved in the set of vertical grooves is correspondingly fitted and positioned with the locking member in the set of vertical grooves.

The quick lock structure for the seat back and the seat as described above, wherein the elastic tip includes a spring and a tip rod, and at least one of the second engaging portion of the seat back bracket is provided to penetrate from the top surface to the bottom surface A through hole, and a rim is formed on the wall of the through hole, and the tip rod and the spring are sequentially arranged in the through hole, and the bottom end of the tip rod protrudes from the bottom surface of the second engaging portion, In addition, a stop flange is formed on the upper end of the tip rod to stop positioning with the step edge of the through hole, and a gasket is provided to fix the gasket to the top surface of the second engaging portion to cover the Above the through hole, and the two ends of the spring are respectively positioned against the spacer and the upper end of the tip rod, and the bottom end of the tip rod of the elastic tip is correspondingly inserted into the clamping hole of the set up slot.

In this way, when assembling the seat back bracket and the seat chassis, the second engagement portion of the seat back bracket is correspondingly sleeved in the assembly groove by the notch provided by the assembly groove of the first engagement portion of the seat chassis , And the elastic pin provided on the bottom side of the second connecting portion is correspondingly inserted into the locking hole of the set of vertical slots, according to the combined design of the locking, to easily complete the assembly of the seat back bracket and the seat chassis, at the same time It does prevent the danger of unintended loosening of the seat back bracket and seat base chassis while riding.

In order to make the technical means of this creation and the effects it can achieve more complete and clear disclosure, here are detailed descriptions, please refer to the disclosed schemes and figures:

First of all, please refer to the first to third pictures. The backrest and seat quick lock structure for this creation mainly includes:

A seat chassis (1) is that a rear end of the seat chassis (1) is provided with a first engaging portion (11), the first engaging portion (11) is formed with a U-shaped assembly interval (12), and The open area above the assembly section (12) is covered with a fixing piece (13), so that the fixing piece (13) is formed to be closed at the periphery of the covering area, and only a slot (141) is left behind the assembly groove (14) ), and a locking hole (131) is provided on the fixing piece (13), the locking hole (131) is a screw hole, and a fixing plate (13) is provided on the bottom surface of the set of grooves (14) The perforation (142) corresponding to the position of the lock hole (131) is provided with a lock fastener (15). The lock fastener (15) includes a knob (151) and a lock lever (152) connected to the knob (151) ), the locking rod (152) is a screw rod, so that the locking rod (152) of the locking member (15) passes through the perforation (142) of the set of vertical grooves (14) to lock with the fixing piece (13) The hole (131) is provided with a screw connection, and the lock rod (152) of the locking member (15) is vertically erected in the set of vertical grooves (14), and the bottom surface of the set of vertical grooves (14) is adjacent to its notch ( 141) At least one card hole (16) is provided at the location;

A seat back bracket (2) is provided with a second engaging portion (21) at the bottom end of the seat back bracket (2), and a recessed recess (22) is provided longitudinally at the center of the front side of the second engaging portion (21) ), so that the second engaging portion (21) is correspondingly sleeved on the set of vertical grooves (14) by the notch (141) of the assembling groove (14) of the first engaging portion (11) of the seat chassis (1) The second engaging portion (21), the front side recessed portion (22) and the locking rod (152) of the locking member (15) erected in the assembly groove (14) are fitted and positioned, and the second engaging portion (21) The bottom side group is provided with at least one elastic tip (23), the elastic tip (23) includes a spring (231) and a tip rod (232), and the second engaging portion (21) is provided with at least one A through hole (24) penetrating from the top surface to the bottom surface longitudinally, and forming a step edge (241) on the hole wall of the through hole (24), and making the tip rod (232) and the spring (231) The sequence group is set in the through hole (24), and the bottom end of the tip rod (232) protrudes from the bottom surface of the second engaging portion (21), and the stop edge (233) at the upper end of the tip rod (232) A blocking edge (241) of the through hole (24) is blocked for positioning, and a gasket (25) is provided to fix the gasket (25) to the top surface of the second connecting portion (21) to cover Above the through hole (24), the two ends of the spring (231) are respectively positioned against the upper end of the spacer (25) and the tip rod (232), and the elastic rod (23) has the tip rod (232) The bottom end corresponds to the clamping hole (16) on the bottom surface of the group of vertical slots (14).

According to this, when you want to assemble the seat back bracket (2) and the seat base chassis (1), please refer to the fourth figure together, which is to set the second connecting portion ( 21) The notch (141) of the assembling groove (14) of the first connecting portion (11) of the seat chassis (1) is correspondingly sleeved in the assembling groove (14), at this time, it is erected in the assembling groove The locking member (15) in (14), the lock lever (152) is engaged with the indentation (22) on the front side of the second engaging portion (21), and is additionally arranged on the bottom side of the second engaging portion (21) The elastic pin (23) has its tip rod (232) retracted against the bottom of the assembly groove (14). At this time, the spring (231) of the elastic pin (23) is in a compressed state.

Please also refer to the fifth figure, as the second engagement portion (21) of the seat back bracket (2) continues to be fitted into the assembly groove (14) of the seat chassis (1), the second engagement portion (21) ) The indentation part (22) is correspondingly fitted with the locking rod (15) of the locking member (15) erected in the assembly groove (14), and the tip rod (232) of the elastic tip (23) is also erected along the assembly The bottom surface of the slot (14) slides to the card hole (16). When the card hole (16) is reached, the spring (231) of the elastic tip (23) will return to its original state, and reset against the push rod (232) And the bottom end of the tip rod (232) is correspondingly inserted and positioned in the clamping hole (16) provided on the bottom surface of the set of vertical grooves (14), according to which, the seat back bracket (2) and the seat chassis are easily and quickly completed ( 1) Assembly [as shown in the sixth figure].

Since the quick-locking structure of the chair back and the seat base in this creation uses the snap structure of the elastic tip (23) and the clamping hole (16) to combine the seat back bracket (2) with the seat chassis (1), it can be It is indeed avoided that the existing seat back and seat base are screwed together, and the risk of unintended loosening of the screws is likely to occur during riding. Furthermore, when the seat back bracket (2) and the seat base chassis (1) are to be separated, the elastic tip (23) inserted in the clamping hole (16) of the seat base chassis (1) can be forced upward Push up to disengage the elastic tip (23) from the insertion latch on the card hole (16), and then the second engagement portion (21) of the seat back bracket (2) is connected by the first engagement of the seat chassis (1) The assembly groove (14) of the part (11) is drawn out, and the assembly state of the seat back bracket (2) and the seat chassis (1) can be easily released.

The foregoing embodiments or drawings do not limit the implementation of the backrest and seat quick-lock structure of this creation. Any appropriate changes or modifications by those with ordinary knowledge in the technical field should be regarded as patents that do not deviate from this creation. category.

In summary, the embodiments of this creation can indeed achieve the expected effect, and the specific structure disclosed by it has not only not been seen in similar products, nor has it been disclosed before the application, and has fully complied with the provisions of the Patent Law and To request that you file an application for a new type of patent in accordance with the law, pleading for the review and granting the patent, you feel truly virtuous.

1: Chair base chassis

11: The first connection department

12: Assembly interval

13: fixed piece

131: Keyhole

14: Assemble the slot

141: Notch

142: Perforation

15: Lock firmware

151: Knob

152: Lock lever

16: Card hole

2: Backrest bracket

21: The second interface

22: recessed part

23: Elastic tip

231: Spring

232: Pin

233: Stop edge

24: through hole

241: Class relationship

25: Gasket

The first picture: three-dimensional exploded view of the creation

Picture 2: Another three-dimensional exploded view of this creation

Figure 3: Anatomical view of this creation

Figure 4: Sectional view of the assembly state of this creation (1)

Figure 5: Sectional view of the assembly state of this creation (2)

Figure 6: The assembled state perspective view of this creation

1: seat base

11: The first link

12: assembly interval

13: fixed piece

14: assembly slot

141: Notch

15: Lock firmware

16: card hole

2: chair back bracket

21: Second Linkage

22: recessed part

Claims (4)

A quick lock structure for a seat back and a seat base mainly includes a seat base chassis and a seat back bracket. A first engaging portion is provided at the rear end of the seat base chassis, and the first engaging portion is formed with a set of vertical grooves. And at least one clamping hole is provided on the bottom surface of the group of upright grooves, and a second engaging portion is provided at the bottom end of the seat back bracket, and the second engaging portion is formed by the groove of the assembly groove of the first engaging portion of the seat chassis The mouth is correspondingly sleeved in the set of vertical grooves, and at least one elastic tip is provided on the bottom side of the second engaging portion, and the elastic tip is correspondingly inserted into the locking holes of the set of vertical grooves. The quick-locking structure of the seat back and the seat base according to claim 1, wherein the first connecting portion of the seat base chassis is formed with a U-shaped assembly section, and a fixing piece is combined with an opening at the upper opening of the assembly section, In order to form a set of grooves around the fixing plate, the set of vertical grooves is only left behind with a notch. The quick-lock structure of the seat back and the seat base according to claim 2, wherein the fixing piece is provided with a lock hole, and a perforation corresponding to the position of the lock hole is provided on the bottom surface of the set of vertical grooves, and a lock fastener is also provided , So that the locking member passes through the perforation of the set of vertical grooves to lock and fix with the lock hole of the fixing piece, so that the lock is erected in the set of vertical grooves, and the second engaging portion of the seat back bracket is An indented portion is provided at the center of the front side thereof, so that the indented portion of the second engaging portion sleeved in the set of vertical grooves is correspondingly fitted and positioned with the fastener in the set of vertical grooves. The quick lock structure for a seat back and a seat base according to claim 1, wherein the elastic tip includes a spring and a lever, at least one of which is penetrated by the top surface of the second engaging portion of the seat back bracket A through hole to the bottom surface of the through hole, and a rim is formed on the through wall of the through hole, and the tip rod and the spring are sequentially arranged in the through hole, and the bottom end of the tip rod protrudes from the second engagement The bottom surface of the part also forms a stop edge at the upper end of the tip rod to stop and position with the step edge of the through hole, and a gasket is provided to fix the gasket to the top surface of the second engaging portion, Covering the through hole, and positioning the two ends of the spring against the gasket and the upper end of the tip rod respectively, and the bottom end of the tip rod of the elastic tip is correspondingly inserted into the clamping hole of the set up slot.

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