CN112648590B

CN112648590B - Lock catch, pendant lamp and bracket lamp

Info

Publication number: CN112648590B
Application number: CN202011469724.2A
Authority: CN
Inventors: 付超; 吕伯君; 李阳
Original assignee: Zhejiang Yankon Group Co Ltd; Zhejiang Yankon Mega Lighting Co Ltd
Current assignee: Zhejiang Yankon Group Co Ltd; Zhejiang Yankon Mega Lighting Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2023-02-28
Anticipated expiration: 2040-12-15
Also published as: CN112648590A

Abstract

The invention discloses a lock catch, a ceiling lamp and a bracket lamp, wherein the lock catch comprises a first part and a second part, and the second part can move up and down in a lock groove of the first part; one side of the second part is provided with a clamping groove, and the first part is rotatably provided with a clamping tongue matched with the clamping groove; the second component is respectively provided with a baffle and a driving wheel in a rotatable way, and the driving wheel comprises a ratchet wheel and a cam which are fixedly connected in a concentric way; the second component is rotatably provided with a first pawl; a movable push rod is arranged in the second part; the bottom end of the push rod extends out of the push rod groove and is abutted against the bottom surface of the lock groove of the first component; the push rod is rotatably provided with a second pawl. The locking device has high locking stability and simple and convenient locking or unlocking operation, and the operation can be completed only by the relative movement of the first component and the second component during locking or unlocking; in addition, the invention has simple and smart internal structure and high transmission efficiency.

Description

Lock catch, ceiling lamp and bracket lamp

Technical Field

The invention relates to the technical field of locking devices, in particular to a lock catch, a ceiling lamp and a bracket lamp, and particularly relates to a lock catch which needs to bear certain load.

Background

In order to facilitate assembly and disassembly of some hoisted products, a set of locking device is designed, in order to achieve rapid assembly and disassembly, the direction of the product to be assembled and disassembled is required to be designed to be consistent with the operation direction of an unlocking system, and the product is locked when being assembled or unlocked when being disassembled.

At present, most of locking devices are designed to integrate a locking structure and an unlocking system into a whole or integrate a mechanical structure, for example, a heart-shaped groove structure mentioned in some patents, so that the locking device cannot bear overlarge load, and a set of bearing system needs to be additionally designed; or a certain load can be borne, but the strength of the unlocking system is also improved, the cost is increased, or the locking and unlocking processes are complicated, and the operation efficiency is low.

Based on the situation, the locking structure of the locking device is separated from the unlocking system, so that the load is only used for the locking structure after being locked without improving the strength design of the unlocking system, the cost and the failure risk are greatly reduced, and the locking and unlocking operation can be simply and quickly carried out.

Disclosure of Invention

The invention aims to provide a lock catch which is high in locking stability, simple and convenient to lock or unlock, exquisite in structure and capable of bearing a certain load, so as to solve the defects in the prior art.

Another objective of the present invention is to provide a ceiling lamp and a stand lamp with easy assembly and disassembly, wherein the ceiling lamp or the stand lamp comprises the latch.

In order to achieve the above purpose, the invention provides the following technical scheme: a latch comprising a first member and a second member, the first member comprising a locking slot, the second member being movable up and down within the locking slot of the first member; a clamping groove is formed in one side of the second component, a clamping tongue matched with the clamping groove is rotatably arranged on the first component, a clamping tongue limiting block is arranged above the free rotation direction of the clamping tongue of the first component, and the clamping tongue is provided with a clamping tongue spring, so that the clamping tongue can be embedded into the clamping groove under the elastic force of the clamping tongue spring and the second component is limited to move outwards;

the second component is respectively provided with a baffle and a driving wheel in a rotatable way, and the driving wheel comprises a ratchet wheel and a cam which are fixedly connected in a concentric way; the blocking piece comprises a clamping tongue contact end and a cam contact end, the clamping tongue contact end is correspondingly matched with the clamping tongue, and the cam contact end is correspondingly matched with the cam; the blocking piece is provided with a blocking piece spring, so that the cam contact end is always in contact with the cam;

the second component is rotatably provided with a first pawl which is provided with a first pawl spring, so that the first pawl is always in contact with the ratchet wheel;

a push rod groove is formed in the second component, a push rod is movably inserted in the push rod groove, and a push rod spring is arranged between the top end of the push rod and the push rod groove; the bottom end of the push rod extends out of the push rod groove and is abutted against the bottom surface of the lock groove of the first component; the push rod is rotatably provided with a second pawl, and the second pawl is provided with a second pawl spring, so that the second pawl is always in contact with the ratchet wheel.

Preferably, two sides of the second component are respectively provided with a baffle piece mounting groove and a driving wheel mounting groove, the baffle pieces are mounted in the baffle piece mounting grooves, the driving wheel is mounted in the driving wheel mounting grooves, and the bottom surfaces of the baffle piece mounting grooves and the bottom surfaces of the driving wheel mounting grooves are communicated in a staggered manner; and the cam of the driving wheel is close to one side of the blocking piece mounting groove.

Preferably, the second component is provided with cover plates on two sides, and the shape of the cover plates is matched with that of the second component.

Preferably, the number of ratchet teeth is twice the number of cam teeth.

Preferably, the latch and the first part are respectively provided with a latch spring limiting block, and two feet of the latch spring are respectively clamped on the latch spring limiting block.

Preferably, the blocking piece and the second part are respectively provided with a blocking piece spring clamping groove, and two legs of the blocking piece spring are respectively clamped in the blocking piece spring clamping grooves.

Preferably, a first pawl spring groove is formed in one side of the driving wheel mounting groove, the first pawl spring is mounted in the first pawl spring groove, and two feet of the first pawl spring are respectively clamped in the first pawl spring groove and the first pawl; and a second pawl spring groove is formed in the push rod, the second pawl spring is installed in the second pawl spring groove, and two feet of the second pawl spring are clamped in the second pawl spring groove and the second pawl respectively.

Preferably, the push rod is provided with a push rod limiting block, and the side wall of the push rod groove is provided with a push rod limiting groove matched with the push rod limiting block.

The invention provides another technical scheme that: the utility model provides an use ceiling lamp of above-mentioned hasp, ceiling lamp still includes first base, lamp pole, first lamp body, the lamp pole links to each other with first lamp body, first base is equipped with an inner chamber, first part is fixed in the inner chamber, first base accessible screw fixation in ceiling, the second part is fixed in the lamp pole top, pushes the lamp pole top along the inner chamber direction and can lock, pushes once more and can the unblock.

The invention provides another technical scheme that: the utility model provides an use the frame lamp of above-mentioned hasp, the frame lamp still includes two second bases, second lamp body, the second base is equipped with a U-shaped groove, first part is fixed in U-shaped groove one end, second base accessible screw fixation in ceiling, second lamp body both ends are equipped with the second part respectively, and second base position matches with second part position, pushes the second lamp body along U-shaped groove direction and can lock, pushes once more and can the unblock.

Compared with the prior art, the invention has the advantages that: the lock catch provided by the invention has high locking stability, is simple and convenient to lock or unlock, and can be operated only by relative movement of the first component and the second component during locking or unlocking; in addition, the invention has simple and smart internal structure and high transmission efficiency.

Drawings

Fig. 1 is an overall exploded schematic view of the present invention.

Fig. 2 is a schematic view of the structure of the first member in the present invention.

Fig. 3 is a schematic view of the mounting structure of the latch of the present invention.

Fig. 4 is a schematic view of the overall structure of the first member and the latch of the present invention.

Fig. 5 is a schematic structural view of the latch of the present invention.

Fig. 6 is a schematic view of the structure of the second member in the present invention.

Fig. 7 is a side view of the second member of the present invention.

Fig. 8 is another schematic view of the second member of the present invention.

FIG. 9 is a schematic view of the structure of the driving wheel in the present invention.

FIG. 10 is another schematic view of the driving wheel according to the present invention.

Fig. 11 is a schematic view of the mounting of the drive wheel in the present invention.

Fig. 12 is a schematic view of the installation of the first pawl in the present invention.

Fig. 13 is a schematic view of the installation of the second pawl in the present invention.

Fig. 14 is a schematic structural view of the push rod of the present invention.

Fig. 15 is a schematic view of the installation of the push rod in the present invention.

Fig. 16 is a schematic view of the installation of the baffle plate of the present invention.

Fig. 17 is a schematic view of a second member with a flap according to the present invention.

Fig. 18 is a schematic structural view of the baffle plate of the present invention.

Fig. 19 is a schematic view of the structure of the second member with the cover plate according to the present invention.

Fig. 20 is a schematic view of the present invention in a locked state.

Fig. 21 is a schematic view of the unlocking process of the present invention.

FIG. 22 is a schematic diagram of the exit process of the second component of the present invention.

Fig. 23 is a schematic diagram of a locking process according to the present invention.

Fig. 24 is a schematic view of the structure of the ceiling lamp of the present invention.

Fig. 25 is an enlarged schematic view of a in fig. 24.

Fig. 26 is a schematic view of the installation of the ceiling lamp of the present invention.

Fig. 27 is a schematic view of a structure of a bracket lamp according to the present invention.

Fig. 28 is an enlarged schematic view of B in fig. 27.

Fig. 29 is a schematic view of the mounting of the bracket lamp of the present invention.

In fig. 21, 22 and 23, in order to more visually display the movement condition of each part in the movement process, the cover plate is hidden, and the second component and the push rod are transparent.

In the figure: 1. the first component 11 and the clamping tongue limiting block;

2. the second component 21, a baffle piece mounting groove 22, a driving wheel mounting groove 23, a push rod groove 24, a push rod limiting groove 25 and a first pawl spring groove;

3. a card slot 31, a card slot platform 32 and a card slot upper edge;

4. the clamp tongue 41, the clamp tongue positioning pin 42, the clamp tongue spring 43 and the clamp tongue spring limiting block;

5. the cam locking device comprises a baffle plate 51, a baffle plate positioning pin 52, a clamping tongue contact end 53, a cam contact end 54, a baffle plate spring 55 and a baffle plate spring clamping groove;

6. a driving wheel 61, a driving wheel positioning pin 62, a ratchet wheel 63 and a cam;

7. the push rod 71, a push rod spring 71, a push rod limiting block 73 and a second pawl spring groove;

8. a first pawl 81, a first pawl positioning pin 82, a first pawl spring;

9. a second pawl 91, a second pawl positioning pin 92, a second pawl spring;

10. and (7) a cover plate.

100. The lamp comprises a first base 200, a lamp post 300, a first lamp body 400, a second base 500 and a second lamp body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described by embodiments in conjunction with the accompanying drawings.

Example (b): a shackle as shown in figures 1 to 19 comprises a first member 1 and a second member 2, the first member 1 being U-shaped and the second member 2 being shaped to fit into a locking slot in the first member 1 and to move up and down in the locking slot. The clamping groove 3 is formed in the inner side of one side, in contact with the first component 1, of the second component 2, the clamping groove 3 comprises a horizontal clamping groove platform 31 and an arc-shaped clamping groove upper edge 32, the first component 1 is provided with a clamping tongue 4 matched with the clamping groove 3, the clamping tongue 4 is rotatably arranged on the first component 1 through a clamping tongue positioning pin 41, the clamping tongue 4 is provided with a clamping tongue spring 42, the clamping tongue spring 42 is a spring providing rotating elasticity, the clamping tongue 4 and the first component 1 are respectively provided with a clamping tongue spring limiting block 43, two feet of the clamping tongue spring 42 are respectively clamped on the clamping tongue spring limiting block 43, the clamping tongue 4 can be outwards rotated and embedded into the clamping groove 3 under the elastic force action of the clamping tongue spring 42, and when the clamping tongue 4 is abutted to the clamping groove platform 31 of the clamping groove 3, the second component 2 is limited to move outwards, and at the moment, the clamping groove is in a locking state. In addition, the first component 1 is further provided with a latch stopper 11 above the latch 4 to limit the maximum rotation angle of the latch 4. In the embodiment, a clamping tongue retreating groove is arranged below the clamping tongue 4 on the first component 1, and when the clamping tongue 4 retreats into the groove, the limiting and locking of the second component 2 can be released; after the installation of the clamping tongue 4 is finished, the two sides of the clamping tongue are respectively provided with a protective end cover.

The two sides of the second component 2 are respectively provided with a baffle plate mounting groove 21 and a driving wheel mounting groove 22, and a baffle plate 6 and a driving wheel 6 are respectively and rotatably arranged in the baffle plate mounting groove 21 and the driving wheel mounting groove 22. The driving wheel 6 is arranged in the driving wheel mounting groove 22 through a driving wheel positioning pin 61, the driving wheel 6 comprises a ratchet wheel 62 and a cam 63 which are concentrically and fixedly connected, and the cam 63 is close to one side of the separation blade mounting groove 21 during mounting; the number of teeth of the ratchet 62 is twice that of the cam 63, and in the present embodiment, the number of teeth of the ratchet 62 is six, and the number of teeth of the cam 63 is three. The baffle 5 is rotatably arranged in the baffle mounting groove 21 through a baffle positioning pin 51, the baffle 5 is Y-like and respectively comprises a clamping tongue contact end 52 and a cam contact end 53, and the clamping tongue contact end 52 can be abutted against the clamping tongue 4 during working; the bottom surface of the baffle plate mounting groove 21 is communicated with the bottom surface of the driving wheel mounting groove 22 in a staggered manner, so that the cam contact end 53 can be contacted with the cam 63; the blocking piece 5 is provided with a blocking piece spring 54, the blocking piece spring 54 is a spring for providing rotation elasticity, the blocking piece 5 and the second component 2 are respectively provided with a blocking piece spring clamping groove 55, and two legs of the blocking piece spring 54 are respectively clamped in the blocking piece spring clamping grooves 55, so that the cam contact end 53 is always in contact with the cam 63.

A push rod groove 23 is formed in the second component 2, a push rod 7 is movably inserted in the push rod groove 23, a push rod spring 71 is arranged between the top end of the push rod 7 and the push rod groove 23, and the bottom end of the push rod 7 extends out of the push rod groove 23 for a certain distance and is abutted against the bottom surface of the lock groove of the first component 1; in this embodiment, the push rod 7 is provided with a push rod limiting block 72, and the side wall of the push rod groove 23 is provided with a push rod limiting groove 24 matched with the push rod limiting block 72 for limiting the maximum distance of the up-and-down movement of the push rod 7, so as to prevent the push rod 7 from sliding out of the push rod groove 23.

A first pawl 8 is rotatably arranged on the second component 2 beside the driving wheel 6 through a first pawl positioning pin 81, the first pawl 8 is provided with a first pawl spring 82, specifically, one side of the driving wheel mounting groove 22 is provided with a first pawl spring groove 25, the first pawl spring 82 is arranged in the first pawl spring groove 25, and two feet of the first pawl spring 82 are respectively clamped in the first pawl spring groove 25 and the first pawl 8; the push rod 7 is rotatably provided with a second pawl 9 through a second pawl positioning pin 91, the second pawl 9 is provided with a second pawl spring 92, specifically, the push rod 7 is provided with a second pawl spring groove 73, the second pawl spring 92 is installed in the second pawl spring groove 73, and two feet of the second pawl spring 92 are respectively clamped in the second pawl spring groove 73 and the second pawl 9. The first pawl 8 and the second pawl 9 are always brought into contact with the ratchet wheel 62 by the elastic force provided by the first pawl spring 82 and the second pawl spring 92. The first pawl 8 and the second pawl 9 should be spaced at least one ratchet tooth apart, and in this embodiment, the first pawl 8 and the second pawl 9 are located on opposite sides of the ratchet wheel 62.

In this embodiment, the two sides of the second component 2 are respectively provided with a cover plate 10, and the shape of the cover plate 10 is matched with the shape of the second component 2, that is, the cover plate is provided with a slot having the same shape as the second component 2. In addition, the width of the latch 4 in this embodiment is comparable to the thickness of the integral assembly of the second part 2 plus the cover plate 10.

In the locked state of the present embodiment, as shown in fig. 20, the latch 4 is latched into the card slot 3 by the elastic force of the latch spring 42, and the latch 4 contacts the card slot platform 31 to limit the outward movement of the second member 2.

The unlocking process of this embodiment is as follows: as shown in fig. 21-22, the second member 2 is pushed inward, and the upper edge 32 of the slot contacts with the latch 4, so as to push the latch 4 to rotate; meanwhile, the bottom end of the push rod 7 abuts against the bottom surface of the lock groove of the first component 1, so that in the process of inward movement of the second component 2, the push rod 7 moves upwards relative to the second component 2, the second pawl 9 pushes the transmission wheel 6 to rotate, the cam 63 of the transmission wheel 6 pushes the cam contact end 53 of the baffle 5 to enable the baffle 5 to rotate, and in the process, the contact point of the baffle 5 and the cam 63 moves from the concave surface to the convex surface; the second part 2 continues to be pushed inwardly until the latch contacting end 52 of the catch 5 has pushed the latch 4 completely out of the pocket 3, at which point the first pawl 8 has just passed over one of the ratchet teeth of the ratchet wheel 62 and the point of contact of the catch 5 with the cam 63 is on the convex side of the cam 63. After unlocking, the second part 2 can be withdrawn outwards, the push rod 7 moves outwards relative to the second part 2 under the action of the push rod spring 71, at the moment, the transmission wheel 6 stops rotating under the action of the first pawl 8, and the second pawl 9 passes over a ratchet during the movement of the push rod 7.

The lock-in process of this embodiment is as follows: as shown in fig. 23, the second component 2 is pushed inward, wherein the motion mode of the push rod 7, the first pawl 8, the second pawl 9 and the transmission wheel 6 is consistent with the unlocking process, the cam 63 continues to push the blocking piece 5 to move, the contact point of the blocking piece 5 and the cam 63 crosses the convex surface and enters the concave surface, because the concave surface profile is located outside the motion track of the cam contact end 53 of the blocking piece 5, the blocking piece 5 loses the cam support and exits the card slot 3 under the action of the blocking piece spring 54, and meanwhile, the card tongue 4 enters the card slot 3 under the action of the card tongue spring 42; the second part 2 is further pushed inwards, after the driving wheel 6 finishes the movement of one ratchet, the second part 2 is withdrawn outwards, and the clamping tongue 4 can smoothly enter the clamping groove 3 and is contacted with the clamping groove platform 31 to enter a locking state.

A ceiling lamp using the lock catch is shown in figures 24-26 and further comprises a first base 100, a lamp post 200 and a first lamp body 300, wherein the lamp post 200 is connected with the first lamp body 300, the first base 100 is provided with an inner cavity, the first part 1 is fixed in the inner cavity, the first base 100 can be fixed on a ceiling through screws, the second part 2 is fixed at the top of the lamp post 200, the top of the lamp post 200 can be locked by being pushed in along the direction of the inner cavity, and the ceiling lamp can be unlocked by being pushed in again.

27-29, the bracket lamp further comprises two second bases 400 and a second lamp body 500, wherein the second base 400 is provided with a U-shaped groove, the first part 1 is fixed at one end of the U-shaped groove, the second bases 400 can be fixed on a ceiling through screws, the two ends of the second lamp body 500 are respectively provided with a second part 2, the position of the second base 400 is matched with the position of the second part 2, and the second lamp body 400 can be locked by being pushed in along the direction of the U-shaped groove and unlocked by being pushed in again.

The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A latch comprising a first member and a second member, wherein said first member comprises a locking slot and said second member is movable up and down within said locking slot of said first member; a clamping groove is formed in one side of the second component, a clamping tongue matched with the clamping groove is rotatably arranged on the first component, a clamping tongue limiting block is arranged above the clamping tongue in the free rotation direction of the first component, and the clamping tongue is provided with a clamping tongue spring, so that the clamping tongue can be embedded into the clamping groove under the elastic force action of the clamping tongue spring and limits the second component to move outwards;

2. A lock catch according to claim 1, wherein a retaining piece mounting groove and a driving wheel mounting groove are respectively formed on both sides of the second member, the retaining piece is mounted in the retaining piece mounting groove, the driving wheel is mounted in the driving wheel mounting groove, and the bottom surfaces of the retaining piece mounting grooves and the driving wheel mounting groove are communicated in a staggered manner; and the cam of the driving wheel is close to one side of the blocking piece mounting groove.

3. A latch as claimed in claim 2, wherein the second member is provided with cover plates on each side, the shape of the cover plates matching the shape of the second member.

4. A latch as claimed in claim 2, wherein the number of ratchet teeth is twice the number of cam teeth.

5. A lock according to claim 1, wherein the latch and the first member are respectively provided with a latch spring stopper, and two legs of the latch spring are respectively clamped on the latch spring stoppers.

6. A lock as claimed in claim 1, wherein the blocking piece and the second member are respectively provided with a blocking piece spring slot, and two legs of the blocking piece spring are respectively clamped in the blocking piece spring slot.

7. A shackle as claimed in claim 2, wherein the drive wheel mounting slot is provided with a first pawl spring slot on one side thereof, the first pawl spring is mounted in the first pawl spring slot, and the two legs of the first pawl spring are respectively engaged with the first pawl spring slot and the first pawl; and a second pawl spring groove is formed in the push rod, the second pawl spring is installed in the second pawl spring groove, and two feet of the second pawl spring are clamped in the second pawl spring groove and the second pawl respectively.

8. The latch of claim 1, wherein the push rod is provided with a push rod limiting block, and the side wall of the push rod groove is provided with a push rod limiting groove matched with the push rod limiting block.

9. A ceiling lamp using the lock of any one of claims 1-8, wherein the ceiling lamp further comprises a first base, a lamp post, and a first lamp body, the lamp post is connected to the first lamp body, the first base has an inner cavity, the first member is fixed in the inner cavity, the first base can be fixed on the ceiling through screws, the second member is fixed on the top of the lamp post, and the top of the lamp post can be locked by pushing the top of the lamp post along the direction of the inner cavity and unlocked by pushing the top of the lamp post again.

10. A bracket lamp using the lock catch as claimed in any one of claims 1 to 8, wherein the bracket lamp further comprises two second bases and a second lamp body, the second bases are provided with a U-shaped groove, the first part is fixed at one end of the U-shaped groove, the second bases can be fixed on the ceiling through screws, the two ends of the second lamp body are respectively provided with the second parts, the positions of the second bases are matched with those of the second parts, and the second lamp body can be locked by being pushed in along the direction of the U-shaped groove and unlocked by being pushed in again.