A buckle and LED street lamp

Abstract

The present application relates to a kind of buckles, with shell, dog, operating lever and positioning cam, dog is rotatably mounted in the shell and is supported by first pre-tightening member to obtain corresponding steady state;Dog's hanging interface is used to be hung with buckle, realize buckling lock;The mounting end of lever operation is rotatably mounted in shell, while the operating part of lever operation extends from shell;Resist pressing portion is provided on the mounting end, and resist pressing portion limits the rotation of the opposite side of dog by abutting dog, so that buckle is not allowed to be separated from hanging interface;Positioning cam is rotatably mounted in shell and is supported by second pre-tightening member to obtain corresponding steady state, so that positioning dog teeth are clamped into the positioning slot of dog to determine the space parking position of the hanging interface of dog.The present application has reasonable structure, small size, small space occupation, simple disassembly and assembly, buckling point is hidden, effectively protected, applied to LED street lamp, can effectively promote the usability of street lamp product, with higher economic benefit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of locks, in particular to a buckle for LED street lamp. BACKGROUND

[0002] Figure 1 As shown, the edge of the panel 101 is locked on the lamp holder 100 by the buckle 102 after the panel 101 covers the lamp holder 100. The buckle 102 is a hook buckle and is fastened by elasticity. This type of buckle for LED street lamp has the following defects: 1. A relatively large operation space is required for installation and use, which affects the layout of the lamp and brings inconvenience to installation and maintenance. 2. The buckling point is exposed, which not only affects the appearance of the lamp, but also is easily damaged by external force, has insufficient use stability and short service life. SUMMARY

[0003] The present application aims to provide a buckle and LED street lamp, which can well solve the above technical problems and have reasonable structure and simple disassembly and assembly.

[0004] To achieve the above object, the present application adopts the following technical scheme:

[0005] A buckle has:

[0006] a housing,

[0007] a pawl having a hanging port and a positioning slot, the pawl being rotatably installed in the housing and being supported by a first pre-tightening member to obtain a corresponding steady state; the hanging port is used for hanging connection with a buckle, realizing buckling locking, the buckle being extended into the housing from outside and making the pawl rotate to complete the hanging connection by relying on external force or self-impact;

[0008] an operating rod having an installation end and an operating part extending from the installation end, the installation end of the operating rod being rotatably installed in the housing, and the operating part extending from the housing; a pressing part is arranged on the installation end, which limits the rotation of the pawl on the opposite side by pressing against the pawl, so that the buckle cannot be separated from the hanging port;

[0009] a positioning cam having a positioning tooth and being rotatably installed in the housing and being supported by a second pre-tightening member to obtain a corresponding steady state, so that the positioning tooth is clamped into the positioning slot of the pawl to determine the space parking position of the hanging port of the pawl; the positioning tooth exiting the positioning slot of the pawl is realized by driving the positioning cam by the operating rod.

[0010] The above scheme further is that the shell is a side-standing horizontal frame body, the shell has a front end and a rear end, the shell is internally provided with a first base shaft and a second base shaft arranged in parallel and crossing left and right side walls of the shell, the operating rod and the claw are left and right stacked and installed on the first base shaft, a hanging interface of the claw faces the front end of the shell, and the positioning cam is installed on the second base shaft and away from the hanging interface; the claw has a tail part facing the positioning cam, and a positioning groove is arranged on the tail part; the abutting part of the operating rod limits rotation of the claw relative to the side by abutting against an upper side of the tail part.

[0011] The above scheme further is that the operating rod and the positioning cam are connected through a linkage plate, the linkage plate transmits power of the operating rod to the positioning cam, and the operating rod drives the positioning cam; the linkage plate is side-standingly installed in the shell and is provided with a first guide groove at a front end, a second guide groove at a rear end, and a shoulder part between the first guide groove and the second guide groove; the first guide groove and the second guide groove are respectively matched with the first base shaft and the second base shaft to guide movement of the linkage plate; the mounting end of the operating rod is provided with a pushing part, the pushing part rotates with the mounting end and drives the linkage plate to move backward by pushing the shoulder part, and the linkage plate rotates with the positioning cam, so that the positioning claw tooth exits the positioning groove of the claw.

[0012] The above scheme further is that the linkage plate is formed in a "Z" shape and is composed of a front folded plate segment, a rear folded plate segment, and a shoulder part connecting the front folded plate segment and the rear folded plate segment together; the front folded plate segment is flatly attached to a corresponding inner side wall of the shell; the first guide groove is arranged on the front folded plate segment; the second guide groove is arranged on the rear folded plate segment; and a toothed opening is arranged on a lower side of the rear folded plate segment, the toothed opening is in contact with a stop arm prearranged on the positioning cam, and the stop arm is a protruding block protruding along an axial direction of the second base shaft; the toothed opening cooperates with the stop arm to achieve a linkage relationship in which the linkage plate rotates with the positioning cam.

[0013] The above scheme further is that the hanging interface is a U-shaped fork, and the hanging interface faces downward and partially protrudes out of the shell under the support of the first pre-tightening member.

[0014] The above scheme further is that the first pre-tightening member and the second pre-tightening member are torsional springs.

[0015] An LED street lamp, a lamp head of the LED street lamp contains the above-mentioned buckle lock, and the lamp cover on the lamp head is locked through the buckle lock.

[0016] The buckle provided by the application integrates the clamping jaw, the operating rod and the positioning cam in the shell, the buckle is extended into the shell from outside and makes the clamping jaw rotate correspondingly to complete the hanging and realize the buckling and locking by relying on external force or self-impact of the clamping jaw, the structure is reasonable, the size is small, the occupied space is small, the buckle is simple to disassemble and assemble, the buckling point is hidden and effectively protected, the appearance of the lamp is not affected, and the service life is long. The buckle is applied to the LED street lamp, can effectively promote the usability of the street lamp product, and has high economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a structural schematic diagram of the prior art; Figure 1 FIG. 2 is a structural schematic diagram of one embodiment of the buckle of the application; FIG. 3 is a structural schematic diagram of another embodiment of the buckle of the application;

[0018] FIG. 4 is a structural schematic diagram of another embodiment of the buckle of the application; Figure 2 FIG. 5 is a structural schematic diagram of another embodiment of the buckle of the application; FIG. 6 is a structural schematic diagram of another embodiment of the buckle of the application;

[0019] FIG. 7 is a structural schematic diagram of another embodiment of the buckle of the application; Figure 3 FIG. 8 is a structural exploded schematic diagram of the embodiment; Figure 2 FIG. 9 is a partial structural exploded schematic diagram of the embodiment; FIG. 10 is a schematic diagram of the assembly of the clamping jaw, the operating rod, the positioning cam and the linkage plate of the embodiment;

[0020] FIG. 11 is a schematic diagram of the application of the embodiment to the LED street lamp; Figure 4 FIG. 12 is a partial structural exploded schematic diagram of the embodiment. Figure 2 FIG. 13 is a structural schematic diagram of another embodiment of the buckle of the application. FIG. 14 is a structural schematic diagram of another embodiment of the buckle of the application.

[0021] FIG. 15 is a structural schematic diagram of another embodiment of the buckle of the application. Figure 5 FIG. 16 is a structural schematic diagram of another embodiment of the buckle of the application. Figure 4 FIG. 17 is a structural schematic diagram of another embodiment of the buckle of the application. FIG. 18 is a structural schematic diagram of another embodiment of the buckle of the application.

[0022] FIG. 19 is a structural schematic diagram of another embodiment of the buckle of the application. Figure 6 FIG. 20 is a schematic diagram of the assembly of the clamping jaw, the operating rod, the positioning cam and the linkage plate of the embodiment. Figure 2 FIG. 21 is a schematic diagram of the application of the embodiment to the LED street lamp. FIG. 22 is a partial structural exploded schematic diagram of the embodiment.

[0023] FIG. 23 is a structural schematic diagram of another embodiment of the buckle of the application. Figure 7 FIG. 24 is a partial structural exploded schematic diagram of the embodiment. FIG. 25 is a structural schematic diagram of another embodiment of the buckle of the application.

[0024] FIG. 26 is a partial structural exploded schematic diagram of the embodiment. Figure 8 FIG. 27 is a structural schematic diagram of another embodiment of the buckle of the application. Figure 7 FIG. 28 is a partial structural exploded schematic diagram of the embodiment. DETAILED DESCRIPTION

[0025] The concept, specific structure and generated technical effects of the application will be further described below with reference to the drawings, so as to fully understand the purpose, features and effects of the application.

[0026] It should be noted that in the description of the application, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the application.

[0027] Reference should be made to Figure 2 ,3 , 4, 5, 6 are the preferred embodiment of the present application, the present application relates to a lock, which has a housing 1, pawl 2, operating lever 4, buckle 5 and positioning cam 6. The pawl 2 has a hanging interface 21 and positioning groove 22, the pawl 2 is rotatably mounted in the housing 1 and supported by the first pre-tightening member 31 to obtain the corresponding stable state, preferably, the first pre-tightening member 31 is a torsion spring, one end of the first pre-tightening member 31 acts on the pawl 2, and the other end is connected to the housing 1. The hanging interface 21 of the pawl 2 is used for hanging with the buckle 5 to achieve the locking, the buckle 5 is extended into the housing 1 and relies on external force or its own impact on the pawl 2, so that the pawl 2 rotates to complete the hanging. The operating lever 4 has a mounting end 41 and an operating part 42 extending from the mounting end, the mounting end 41 of the operating lever 4 is rotatably mounted in the housing 1, and the operating part 42 extends from the housing 1 for manual operation. The mounting end 41 is provided with a pressing part 43, which limits the rotation of the pawl 2 on the opposite side by abutting against the pawl 2, so that the buckle 5 cannot be separated from the hanging interface 21, and the stable locking is achieved. The positioning cam 6 has a positioning tooth 61 and is rotatably mounted in the housing 1 and supported by the second pre-tightening member 32 to obtain the corresponding stable state, so that the positioning tooth 61 is clamped into the positioning groove 22 of the pawl 2 to determine the space parking position of the hanging interface 21 of the pawl, preferably, the second pre-tightening member 32 is a torsion spring, which is simple in structure and convenient to assemble. The positioning tooth 61 exits the positioning groove 22 of the pawl 2, which is realized by driving the positioning cam 6 by the operating lever 4.

[0028] Referring to Figure 2 , 3, 4, 5, 6, in the embodiment, the shell 1 is a side of the horizontal frame, further, in order to facilitate assembly, the shell 1 is enclosed by left and right two parts; The shell 1 has a front end and a rear end, the shell 1 is provided with first base shaft 11 and second base shaft 12 arranged in front and back and across the left and right side walls of the shell, the operating rod 4 and the claw 2 form left and right stacked form installation first base shaft 11, compact, reasonable structure. The hanging interface 21 of the claw 2 faces the front end of the shell, the hanging interface 21 is U-shaped fork, under the support of the first pre-tightening member 31, the corresponding stable state is that the hanging interface 21 faces down and partially extends out of the shell 1, in order to adapt to loose buckle 5; And the positioning cam 6 is installed on the second base shaft 12 and away from the hanging interface 21, the claw 2 has a tail 23 towards the positioning cam 6, the positioning groove 22 is arranged on the tail 23, the abutting portion 43 of the operating rod 4 overcomes the force of the first pre-tightening member 31 by abutting the upper side of the tail 23, so that the claw 2 rotates, the hanging interface 21 is retracted into the shell 1 and hooks the buckle 5, forming hanging engagement; At the same time, the abutting portion 43 abuts the upper side of the tail 23, also limits the rotation of the claw 2 relative to the side, to prevent accidental loosening. The operating rod 4 and the positioning cam 6 are connected through the linkage plate 7, the linkage plate 7 transmits power of the operating rod 4 to the positioning cam 6, so that the operating rod 4 drives the positioning cam 6. The linkage plate 7 is installed in the shell 1 and provided with a first guide groove 71 at the front end, a second guide groove 72 at the rear end and a shoulder portion 73 between the first guide groove 71 and the second guide groove 72, the first guide groove 71 and the second guide groove 72 are respectively matched with the first base shaft 11 and the second base shaft 12 to guide the movement of the linkage plate 7, the mounting end 41 of the operating rod 4 is provided with a push top 44. When the operating part 42 of the operating rod 4 is lifted (counterclockwise rotation) Figure 2 ), the push top 44 rotates with the mounting end 41 and drives the linkage plate 7 to move backward through the push shoulder portion 73, the linkage plate 7 rotates with the positioning cam 6, overcomes the force of the second pre-tightening member 32, and makes the positioning tooth 61 exit the positioning groove 22 of the claw 2, at the same time, the abutting portion 43 of the operating rod 4 also gives up the abutting of the tail 23 of the claw 2, at this time, under the action of the first pre-tightening member 31, the claw 2 resets, that is, the hanging interface 21 faces down and partially extends out of the shell 1, in order to adapt to loose buckle 5.

[0029] As shown in the figure, the linkage plate 7 is composed of a front flap section 74, a rear flap section 75 and a shoulder part 73 connecting the front flap section 74 and the rear flap section 75 together, forming a "Z" shaped geometry, the shoulder part 73 is vertically arranged, the front flap section 74 is flatly attached to the corresponding inner side wall of the shell 1 to obtain installation and positioning, the first guide groove 71 is opened on the front flap section 74, the second guide groove 72 is opened on the rear flap section 75, and the lower side of the rear flap section 75 is provided with a toothed opening 751, which is in contact with the pre-set stop arm 62 on the positioning cam 6, the stop arm 62 is a protruding block protruding along the axial direction of the second base shaft 12, and the toothed opening 751 cooperates with the stop arm 62 to achieve the linkage relationship between the linkage plate 7 and the rotation of the positioning cam 6. When the operation part 42 of the operating rod 4 is lifted upward (counterclockwise rotation) Figure 2 , the mounting end 41 rotates around the first base shaft 11, the push-up part 44 rotates with the mounting end 41, the push-up part 44 pushes up the shoulder part 73, the linkage plate 7 moves backward, the toothed opening 751 drives the stop arm 62 to move, the positioning cam 6 rotates, the positioning clamping teeth 61 are out of the positioning groove 22 of the clamping jaw 2; at the same time, after the operation part 42 of the operating rod 4 is lifted upward, the abutting part 43 of the operating rod 4 also exits the restriction on the tail part 23 of the clamping jaw 2, at this time the first pre-tightening part 31 drives the clamping jaw 2 to rotate and reset, the hanging port 21 faces downward and releases the buckle 5.

[0030] Figure 7 、 8 As shown, the present application also provides an LED street lamp, the lamp head of which contains the above-mentioned buckle, the lamp cover 201 on the lamp head 200 is locked by the buckle, the lamp cover 201 is assembled on the lower side of the lamp head 200, i.e. the light-emitting side, and one end of the lamp cover 201 is hingedly connected with the lamp head 200, so that the other opposite end of the lamp cover 201 forms a freely opening and closing end which can approach or move away from the lamp head 200, the buckle 5 is assembled on the freely opening and closing end, the shell 1 is installed on the upper side of the lamp head 200 and can be embedded in the heat dissipation groove, and the clamping jaw 2, the operating rod 4 and the positioning cam 6 are assembled on the shell 1. The buckle body of the present application is relatively small in size, and the operation space is also relatively small, so it can be conveniently installed and used, and has good practicability.

[0031] There are two cases for the operation of closing the lamp cover 201:

[0032] I. The operating part 42 of the operating lever 4 is pressed down to the position, the pressing part 43 of the operating lever 4 presses against the tail part 23 of the clamping jaw 2, the clamping jaw 2 is rotated against the force of the first pre-tightening part 31, the hanging interface 21 is retracted into the shell 1, at this time, the positioning cam 6 is also supported by the second pre-tightening part 32 to obtain the corresponding stable state, and the positioning tooth 61 is clamped into the positioning groove 22 of the clamping jaw 2 to determine the space parking position of the hanging interface 21 of the clamping jaw; at this time, the lampshade 201 is forced to be closed, the buckle 5 moves with the lampshade 201, passes through the pre-set through hole on the lamp holder 200 and relies on the impact of the clamping jaw 2 by itself, so that the clamping jaw 2 rotates correspondingly against the force of the first pre-tightening part 31 and the limitation of the positioning tooth 61, and the buckle 5 is extended from outside into the shell 1 and hung into the hanging interface 21. The pressing part 43 of the operating lever 4 presses against the tail part 23 of the clamping jaw 2, and the positioning tooth 61 is clamped into the positioning groove 22 of the clamping jaw 2 to give positioning, so that the buckle 5 is stably hung with the hanging interface 21, and the lampshade 201 is closed and fixed.

[0033] II. As described above, when the operating part 42 of the operating lever 4 is lifted up (clockwise rotation) Figure 2 , the hanging interface 21 is supported by the first pre-tightening part 31 and partially extends out of the shell 1 downward, the lampshade 201 is closed, the buckle 5 is extended from outside into the shell 1 and freely extends into the hanging interface 21, and then the operating part 42 of the operating lever 4 is pressed down, the pressing part 43 of the operating lever 4 also presses down the tail part 23 of the clamping jaw 2, so that the clamping jaw 2 rotates, the hanging interface 21 rotates and hooks the buckle and retracts into the shell, at the same time, the pushing part 44 of the operating lever 4 releases the shoulder part 73, the positioning cam 6 is reset under the pre-tightening force of the second pre-tightening part 32, the linkage plate 7 moves forward, the tooth gap 751 retreats, the positioning tooth 61 of the positioning cam 6 returns to the positioning position and is clamped into the positioning groove 22 to give positioning. At this time, the buckle 5 is stably hung with the hanging interface 21, and the lampshade 201 is closed and fixed.

[0034] Lampshade 201 opening operation situation:

[0035] When the lampshade 201 needs to be opened, the operating part 42 of the operating lever 4 needs to be lifted up (counterclockwise rotation) Figure 2 , the first pre-tightening part 31 drives the clamping jaw 2 to reset, the hanging interface 21 is popped out and the opening faces downward, and then the buckle 5 is released, so that the lampshade 201 can be opened.

[0036] The buckle lock provided by the application integrates the clamping jaw, the operating lever and the positioning cam in the shell, the buckle is extended from outside into the shell and impacts the clamping jaw by external force or itself, so that the clamping jaw rotates to complete the hanging and realize the buckling and locking, the structure is reasonable, the size is small, the occupied space is small, the buckling point is hidden and effectively protected, the appearance of the lamp is not affected, and the service life is long. The application is applied to LED street lamps, can effectively promote the use of street lamp products, and has high economic benefits.

[0037] Although the preferred embodiments of the present application have been disclosed with reference to the attached drawings, the present application should not be limited to the exact construction and operation as disclosed above and shown in the drawings. Many changes and modifications will be apparent to those skilled in the art in view of the above teachings, and it is intended to encompass such changes and modifications within the scope of the appended claims.

Claims

1. A latch, characterized in that, have: Outer shell (1), The claw (2) has a hook interface (21) and a positioning groove (22). The claw (2) is rotatably installed inside the housing (1) and supported by the first pre-tightening member (31) to obtain a corresponding stable state. The hook interface (21) is used to hook with the buckle (5) to achieve a locking. The buckle (5) extends into the housing (1) from the outside and relies on external force or its own impact to make the claw (2) rotate accordingly to complete the hooking. The operating lever (4) has a mounting end (41) and an operating part (42) extending from the mounting end. The mounting end (41) of the operating lever (4) is rotatably mounted inside the housing (1), and the operating part (42) extends out from the housing (1). The mounting end (41) is provided with a pressing part (43), which restricts the rotation of the opposite side of the pawl (2) by abutting against the pawl (2) to prevent the buckle (5) from disengaging from the hook interface (21). The positioning cam (6) has positioning teeth (61) and is rotatably mounted in the housing (1) and supported by the second preload (32) to obtain a corresponding stable state, so that the positioning teeth (61) engage with the positioning groove (22) of the claw (2) to determine the spatial parking position of the claw's hook interface (21); the positioning teeth (61) disengage from the positioning groove (22) of the claw (2) by driving the positioning cam (6) through the operating lever (4); The outer shell (1) is a horizontal frame standing on its side. The outer shell (1) has a front end and a rear end. The inner shell (1) is provided with a first base shaft (11) and a second base shaft (12) arranged in parallel front and rear and spanning the left and right side walls of the outer shell. The operating lever (4) and the pawl (2) are stacked on the first base shaft (11) in a left-right stack. The hanging interface (21) of the pawl (2) faces the front end of the outer shell, while the positioning cam (6) is installed on the second base shaft (12) and away from the hanging interface (21). The pawl (2) has a tail (23) facing the positioning cam (6). The positioning groove (22) is provided on the tail (23). The pressing part (43) of the operating lever (4) restricts the rotation of the opposite side of the pawl (2) by abutting against the upper side of the tail (23). The inner shell (1) is also provided with a linkage plate (7) for cooperating with the operating lever (4) to drive the positioning cam (6).

2. The latch according to claim 1, characterized in that, The operating lever (4) and the positioning cam (6) are connected by a linkage plate (7). The linkage plate (7) transmits the power of the operating lever (4) to the positioning cam (6), so that the operating lever (4) drives the positioning cam (6). The linkage plate (7) is installed on its side inside the housing (1) and has a first guide groove (71) at the front end, a second guide groove (72) at the rear end, and a shoulder (73) located between the first guide groove (71) and the second guide groove (72). The first guide groove (71) and the second guide groove (72) are respectively matched with the first base shaft (11) and the second base shaft (12) to guide the linkage plate (7) to move. The mounting end (41) of the operating lever (4) is provided with a pusher (44). The pusher (44) rotates with the mounting end (41) and drives the linkage plate (7) to move backward through the pusher shoulder (73). The linkage plate (7) rotates along with the positioning cam (6), so that the positioning tooth (61) exits the positioning groove (22) of the pawl (2).

3. A latch according to claim 2, characterized in that, The linkage plate (7) is composed of a front folding plate section (74), a rear folding plate section (75), and a shoulder section (73) connecting the front folding plate section (74) and the rear folding plate section (75) together, forming a zigzag geometry. The front folding plate section (74) is flat against the corresponding inner wall of the outer shell (1). The first guide groove (71) is opened on the front folding plate section (74), and the second guide groove (72) is opened on the rear folding plate section (75). The lower side of the rear folding plate section (75) is provided with a toothed opening (751). The toothed opening (751) is in contact with the stop arm (62) preset on the positioning cam (6). The stop arm (62) is a protruding block that protrudes axially along the second base shaft (12). The linkage relationship between the linkage plate (7) and the positioning cam (6) is achieved by the toothed opening (751) cooperating with the stop arm (62).

4. A latch according to claim 1, characterized in that, The hanging interface (21) is a U-shaped fork. Under the support of the first pre-tightening member (31), the hanging interface (21) faces downward and partially extends out of the outer shell (1).

5. A latch according to claim 1, characterized in that, The first pretensioner (31) and the second pretensioner (32) are torsion springs.

6. An LED street light, characterized in that, The LED street light head includes a latch as described in any one of claims 1 to 5, which is used to lock the lamp cover on the lamp head.

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