Hasp for lamp and lamp

Abstract

The utility model relates to a hasp for a lamp and the lamp, and the hasp comprises a connecting piece which comprises a connecting plate, and a first rotating shaft and a second rotating shaft which are respectively positioned at two opposite side edges of the connecting plate; the hasp piece comprises a hasp main body, the connecting end of the hasp main body is used for being connected with the connecting piece, the free end of the hasp main body is far away from the connecting piece, and the free end of the hasp main body is provided with a lock catch protruding part protruding towards the back face of the hasp main body; the connecting piece further comprises a torsional spring, a main body of the torsional spring is arranged on the second rotating shaft in a sleeving mode, the first end of the torsional spring abuts against the connecting plate, the second end of the torsional spring abuts against the hasp main body, and therefore the hasp main body always has the trend of being unfolded relative to the connecting piece. The utility model has the advantages that the hasp structure can be effectively simplified, and the service life of the hasp is prolonged.

Description

Fasteners for lamps and lamps Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a fastener for lighting fixtures and a lighting fixture. Background Technology

[0002] Lighting fixtures, such as tri-proof lights, generally include a lamp housing and a lamp panel assembly housed within the lamp housing. The lamp housing includes an upper shell with a lower opening and a light-transmitting lampshade connected to the bottom opening of the upper shell. The light-transmitting lampshade has an upper opening and is connected to the upper shell by a snap-fit ​​structure. For example, Chinese utility model patent application number CN202421535683.6 (authorization announcement number: CN222747154U) discloses a fastening structure for a lampshade, which includes a fastening structure. The fastening structure includes a fastening piece and a fastening body. The fastening piece includes a first rotating shaft, a fastening body, and a second rotating shaft. The first rotating shaft is located in a limiting rotating groove on the side wall of the lamp body, and the second rotating shaft is pivotally connected to the fastening body. The front end of the lower surface of the fastening body forms two opposing connecting ends, which are respectively connected to the two ends of the second rotating shaft. The middle section of the fastening body is provided with a curved locking position. The lower section of the fastening body bends downward, and the side of the curved locking position between the connecting end and the corresponding side wall of the connecting end forms a second hook that engages with the first hook on the lamp body. The lower end of the fastening body is provided with a third hook that matches the locking groove. Each of the two connecting ends has an elastic damping structure on one side facing the snap fastener piece. Each of the elastic damping structures has an inclined guide edge on each side. In its normal state, one of the guide edges interferes with the lower surface of one side of the snap fastener piece. When the applied force exceeds the resistance of the elastic damping structure, the snap fastener piece folds along the corresponding guide edge to the other side of the elastic damping structure, and the other guide edge interferes with the upper surface of the other side of the snap fastener piece. This interference prevents the snap fastener piece from drooping freely due to gravity during installation, increasing ease of installation.

[0003] However, the above-mentioned latch structure for lighting fixtures still has some shortcomings: in order to avoid the latch from drooping due to its own weight and causing inconvenience in operation, the latch is achieved through the guide edge of the elastic damping structure. The structure of this latch is relatively complex. In particular, after long-term use, the elastic damping structure is also prone to failure due to wear or deformation, resulting in a short service life.

[0004] Therefore, the existing latches used for lighting fixtures need further improvement. Summary of the Invention

[0005] The first technical problem to be solved by this utility model is to provide a fastener for lighting fixtures that can effectively simplify the fastener structure and extend its service life, in light of the current state of the technology.

[0006] The second technical problem to be solved by this utility model is to provide a lamp that uses the above-mentioned buckle, in view of the current state of the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem is: a fastener for lamps, comprising:

[0008] The connector includes a connecting plate and a first rotating shaft and a second rotating shaft located on opposite sides of the connecting plate, the first rotating shaft being parallel to the second rotating shaft, and the first rotating shaft being used to rotatably connect with the lamp housing of the lamp.

[0009] A fastener includes a fastener body having a connecting end and a free end opposite each other in the length direction. The connecting end of the fastener body is used to connect with the connector. The free end of the fastener body is away from the connector. The free end of the fastener body has a locking protrusion protruding towards the back of the fastener body. When the locking protrusion of the fastener is locked with the locking position on the lamp housing of the lamp, the fastener and the connector are closed relative to each other and abut against one side of the lamp housing of the lamp.

[0010] It also includes a torsion spring, the main body of which is sleeved on the second rotating shaft. The first end of the torsion spring abuts against the connecting plate, and the second end abuts against the buckle body, so that the buckle body always has a tendency to unfold relative to the connecting member.

[0011] To prevent the torsion spring from wobbling, the back of the buckle body also has a positioning protrusion with a positioning hole for the first end of the torsion spring to pass through. The positioning protrusion and positioning hole fix the first end of the torsion spring, ensuring the stability of the torsion spring position, improving the efficiency of force transmission, and enhancing the reliability of the buckle.

[0012] To ensure a secure fit between the second end of the torsion spring and the buckle body, the second end of the torsion spring extends to the central region of the back of the buckle body, forming a first bend that curves along the width of the buckle body. This first bend extends to the center of the buckle body, increasing the contact area, optimizing the lever arm distribution, reducing localized wear, and further extending the torsion spring's lifespan.

[0013] In some embodiments, the hook and loop fastener may employ only one torsion spring structure, i.e., a single torsion spring structure. However, considering that a single torsion spring structure is prone to buckle deflection or jamming due to uneven force distribution, affecting the locking effect, the torsion spring includes a first torsion spring body and a second torsion spring body arranged at a distance from each other. The first and second torsion spring bodies are respectively sleeved on the left and right ends of the second rotating shaft, and the second ends of both the first and second torsion spring bodies abut against the back of the hook and loop body. The first end of the first torsion spring body forms a second bend along the width direction of the hook and loop body, which abuts against the back of the connecting plate. The first end of the second torsion spring body forms a third bend along the width direction of the hook and loop body, which abuts against the back of the connecting plate. The double torsion spring bodies are located at both ends of the second rotating shaft to balance the force, prevent deflection, and improve the smoothness of the hook and loop action and the locking stability.

[0014] In some designs, the first torsion spring body and the second torsion spring body can be separate components. As an improvement, the second end of the first torsion spring body is connected to the second end of the second torsion spring body, making the first and second torsion spring bodies a single piece. This integrated design simplifies the manufacturing process, reduces the number of parts, ensures synchronized operation of the two torsion springs, and improves assembly efficiency.

[0015] To ensure effective contact between the second end of the double torsion spring body and the hook-and-loop fastener body, the portion connecting the second ends of the first and second torsion spring bodies extends along the width direction of the hook-and-loop fastener body. This width-extending connection enhances the structural strength of the second end of the torsion spring, prevents deformation, and ensures the reliability of the double torsion springs working together.

[0016] In order to achieve the rotational connection between the second pivot of the connector and the buckle body, the left and right sides of the connecting end of the buckle body have connecting arms extending toward the back of the buckle body. The second pivot is rotatably connected to the two connecting arms. The two connecting arms of the buckle body are plate-shaped and perpendicular to the buckle body. The two connecting arms are provided with pivot holes for the two ends of the second pivot to pass through.

[0017] As an improvement, the latching protrusion is a rolled-up structure that curls from the free end of the latch body toward the back. The rolled-up structure enhances the bending strength and wear resistance of the latching protrusion, and improves the fitting accuracy and durability with the latching position.

[0018] To further enhance the connection strength between the latch protrusion and the latch body, reinforcing ribs are provided on the portion of the rolled structure that connects to the latch body. These reinforcing ribs disperse the root stress of the latch protrusion, preventing deformation or breakage and further extending its service life.

[0019] The technical solution adopted by this utility model to solve the second technical problem is as follows: a lamp fixture, including a lamp housing, the lamp housing including an upper shell with a lower opening and a light-transmitting lampshade fastened to the bottom opening of the upper shell, the outer side wall of the upper shell is also provided with a buckle that can be deflected up and down relative to the upper shell, the buckle adopts the buckle for lamp fixtures mentioned above, the light-transmitting lampshade has a locking position, the first rotating shaft of the connecting member is rotatably connected to the upper shell, when the light-transmitting lampshade and the upper shell are assembled in place, the locking protrusion of the buckle can be deflected downward and limited at the locking position.

[0020] Compared with existing technologies, the advantages of this invention are as follows: The buckle of this invention uses a torsion spring as a single elastic element, sleeved on the second rotating shaft. By abutting the connecting plate at both ends against the buckle body, it replaces the original multi-component linkage system including guide edges and elastic damping plates, significantly reducing the number of parts and assembly complexity, and lowering production costs. Secondly, the torsion spring is made of metal and only withstands pure torsional deformation, exhibiting stronger fatigue resistance and wear resistance compared to elastic damping structures. It maintains stable elastic recovery force even after long-term use, effectively avoiding failure due to material aging or structural deformation. Furthermore, the preload of the torsion spring ensures that the buckle body always has an unfolding tendency, preventing the buckle from sagging due to its own weight and interfering with installation, and eliminating the need for friction damping to maintain position, simplifying the buckle opening and closing process and making operation more convenient. Attached Figure Description

[0021] Figure 1 is a three-dimensional structural diagram of the buckle in Embodiment 1 of this utility model;

[0022] Figure 2 is a front view of the buckle in Embodiment 1 of this utility model;

[0023] Figure 3 is an exploded view of the buckle in Embodiment 1 of this utility model;

[0024] Figure 4 is a right view of the buckle of Embodiment 1 of this utility model, with the buckle in the unfolded state;

[0025] Figure 5 is a right view of the buckle in Embodiment 1 of this utility model, with the buckle in a closed state;

[0026] Figure 6 is a three-dimensional structural diagram of the lamp according to Embodiment 1 of this utility model;

[0027] Figure 7 is a cross-sectional view of the lamp according to Embodiment 1 of this utility model, without showing the torsion spring;

[0028] Figure 8 is a three-dimensional structural diagram of the buckle in Embodiment 2 of this utility model. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0031] Example 1

[0032] Figures 1-7 illustrate a preferred embodiment of the latch for a lamp and the lamp of the present invention. The latch for the lamp includes a connector 1, a latch 2, and a torsion spring 3. The connector 1 includes a connecting plate 11 and a first rotating shaft 121 and a second rotating shaft 122 disposed on its two sides, the first rotating shaft 121 and the second rotating shaft 122 being parallel. The left and right ends of the first rotating shaft 121 and the left and right ends of the second rotating shaft 122 both protrude outward relative to the left and right sides of the connecting plate 11. The two ends of the first rotating shaft 121 are rotatably connected to the lamp housing 4 (such as the upper housing 41) of the lamp. The latch 2 includes a latch body 20, the latch body 20 having a connecting end 201 and a free end 202 opposite to each other in the length direction. Its connecting end 201 is rotatably connected to the second rotating shaft 122 through a pair of plate-shaped connecting arms 23 perpendicular to the latch body 20. The two connecting arms 23 have opposite rotating shaft holes 230, through which the two ends of the second rotating shaft 122 can pass. The free end 202 of the buckle body 20 is rolled up towards the back to form a buckle protrusion 21 with a rolled structure. The connection between the rolled structure and the buckle body 20 is provided with a reinforcing rib 211 to enhance strength and disperse stress.

[0033] To fit the structure of the lamp housing 4, the latch body 20 is generally a bent plate structure (i.e., not a straight plate). As shown in Figure 7, when the latch on the left side of the lamp is locked, the lower part of the latch body 20 is basically vertical, while the upper part of the latch body 20 is tilted from bottom to top toward the side where the lamp housing 4 is located.

[0034] The main body of the torsion spring 3 is sleeved on the second rotating shaft 122. Its first end abuts against the back of the connecting plate 11, and its second end extends to the middle area of ​​the back of the buckle body 20 and bends to form a first bent portion 301 along the width direction of the buckle body 20, which fits against the back of the buckle body 20. The preload of the torsion spring 3 causes the buckle body 20 to always tend to unfold away from the connecting plate 11 around the second rotating shaft 122. When the locking protrusion 21 locks with the locking position 420 on the lamp housing 4, the buckle body 20 can overcome the force of the torsion spring 3 and close relative to the connecting plate 11 and abut against the side of the lamp housing 4. When the locking protrusion 21 unlocks from the locking position 420 on the lamp housing 4, the torsion spring 3 pushes the buckle body 20 to unfold automatically, avoiding sagging due to its own weight. The deflection direction of the automatic unfolding of the buckle body 20 is shown in the S direction in Figure 5. The center lines in Figures 4 and 5 can be understood as the vertical direction for reference.

[0035] In some embodiments, the torsion spring 3 may employ a double torsion spring 3 structure to improve the balance of the hook-and-loop action. Specifically, the torsion spring 3 includes a first torsion spring body 31 and a second torsion spring body 32 arranged at left and right intervals, respectively sleeved on the left and right ends of the second rotating shaft 122. The first end of the first torsion spring body 31 is bent toward the back of the connecting plate 11 to form a second bend 302, and the first end of the second torsion spring body 32 is bent to form a third bend 303. Both of them abut against the back of the connecting plate 11 to provide symmetrical preload. The second ends of both the first torsion spring body 31 and the second torsion spring body 32 extend to the back of the hook-and-loop body 20 and abut against its central region, forming a double-point support to avoid deflection or jamming caused by uneven force on the single torsion spring 3. In a further preferred embodiment, the second end (i.e., the first bend 301) of the first torsion spring body 31 and the second end (i.e., the second bend 302) of the second torsion spring body 32 are integrally formed by a connecting section extending along the width direction of the buckle body 20, forming an integral double torsion spring 3 structure, which reduces the number of parts, simplifies the assembly process, and ensures that the double torsion springs 3 operate synchronously.

[0036] Referring to Figures 4 and 5, in some embodiments, the latching protrusion 21 of the fastener is a rolled-up structure that rolls from the free end 202 of the fastener body 20 towards the back, with multiple radial reinforcing ribs 211 provided at its root where it connects to the fastener body 20. The reinforcing ribs 211 are integrally formed with the fastener body 20 through a stamping process, significantly improving the bending strength and wear resistance of the latching protrusion 21. The arc-shaped surface of the rolled structure forms surface contact with the latching position 420 of the lamp housing 4, reducing local stress and extending service life.

[0037] Referring to Figures 6 and 7, this embodiment also provides a lamp fixture using the above-mentioned latch. The lamp fixture includes a lamp housing 4 and a lamp panel assembly disposed within the lamp housing 4. The structure and working principle of the lamp panel assembly are existing technologies and will not be described in detail here. The lamp housing 4 includes an upper shell 41 with a lower opening and a light-transmitting lampshade 42 that is fastened to the bottom opening of the upper shell 41. The outer side wall of the upper shell 41 of the lamp housing 4 has a mounting recess 410 that is recessed toward the interior of the lamp housing 4. The mounting recess 410 has two opposing side walls in the length direction of the lamp housing 4. The two ends of the first pivot 121 of the latch are rotatably connected to the two opposing side walls of the mounting recess 410 of the upper shell 41. The top opening of the light-transmitting lampshade 42 is fastened to the bottom opening of the upper shell 41. The outer peripheral edge of the light-transmitting lampshade 42 has an outwardly protruding limiting flange 421, and the bottom of the limiting flange 421 has an upwardly recessed recess as a locking position 420. During installation, after aligning the light-transmitting lampshade 42 with the upper shell 41, press down on the latch body 20 so that its locking protrusion 21 engages with the locking position 420, locking the light-transmitting lampshade 42 to the upper shell 41. To disassemble, simply pull the latch body 20 upwards to release the lock. This latch design simplifies the assembly and disassembly process of the lamp housing 4, and the durable elasticity of the torsion spring 3 ensures that the latch body 20 will continue to unfold automatically even after long-term use.

[0038] Example 2

[0039] Figure 8 shows another preferred embodiment of the latch for lamps according to the present invention. The difference between this embodiment and embodiment 1 is that the torsion spring 3 in this embodiment is a single torsion spring 3 structure, and is only provided at one end of the second rotation of the connector 1. The first and second ends of the torsion spring 3 in this embodiment both have bends that are basically the same as in embodiment 1.

[0040] Furthermore, the back of the buckle body 20 in this embodiment is provided with a positioning protrusion 22, and a positioning hole 220 is formed on the positioning protrusion 22. The first end of the torsion spring 3 passes through the positioning hole 220 and abuts against the connecting plate 11. The positioning hole 220 restricts the displacement of the first end of the torsion spring 3, ensuring the stability of the torsion spring 3 and preventing elastic failure due to shaking during use. At the same time, the first bend 301 formed by the bending of the second end of the torsion spring 3 covers the middle of the back of the buckle body 20, increasing the contact area and reducing local wear.

[0041] Based on the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. For example, the main body of the double torsion spring 3 in Embodiment 1 can also adopt a split design, that is, the first torsion spring body 31 and the second torsion spring body 32 are independently installed at both ends of the second rotating shaft 122, and their second ends respectively abut against the left and right sides of the back of the buckle body 20, without being connected together. As another example, the positioning protrusion 22 with positioning hole 220 on the connecting plate 11 in Embodiment 2 can also be provided on the connecting plate 11 in Embodiment 1.

Claims

1. A latch for a lighting fixture, comprising: The connector (1) includes a connecting plate (11) and a first rotating shaft (121) and a second rotating shaft (122) located on opposite sides of the connecting plate (11). The first rotating shaft (121) and the second rotating shaft (122) are parallel. The first rotating shaft (121) is used to rotatably connect with the lamp housing (4) of the lamp. The fastener (2) includes a fastener body (20), which has a connecting end (201) and a free end (202) opposite each other in the length direction. The connecting end (201) of the fastener body (20) is used to connect with the connector (1). The free end (202) of the fastener body (20) is away from the connector (1). The free end (202) of the body (20) has a locking protrusion (21) protruding towards the back of the buckle body (20). When the locking protrusion (21) of the buckle (2) is locked with the locking position (420) on the lamp housing (4) of the lamp, the buckle (2) and the connector (1) are closed relative to each other and abut against one side of the lamp housing (4) of the lamp. The characteristic is that it also includes a torsion spring (3), the main body of which is sleeved on the second rotating shaft (122). The first end of the torsion spring (3) abuts against the connecting plate (11) and the second end abuts against the buckle body (20), so that the buckle body (20) always has a tendency to unfold relative to the connector (1).

2. The latch for lamps according to claim 1, characterized in that: The back of the buckle body (20) also has a positioning protrusion (22), on which a positioning hole (220) is provided for the first end of the torsion spring (3) to pass through.

3. The latch for lamps according to claim 2, characterized in that: The second end of the torsion spring (3) extends to the middle region of the back of the buckle body (20) and forms a first bend (301) that bends along the width direction of the buckle body (20).

4. The latch for lamps according to claim 1, characterized in that: The torsion spring (3) includes a first torsion spring body (31) and a second torsion spring body (32) arranged at left and right intervals. The first torsion spring body (31) and the second torsion spring body (32) are respectively sleeved on the left and right ends of the second rotating shaft (122). The second ends of the first torsion spring body (31) and the second ends of the second torsion spring body (32) abut against the back of the buckle body (20). The first end of the first torsion spring body (31) forms a second bent portion (302) bent along the width direction of the buckle body (20). The second bent portion (302) abuts against the back of the connecting plate (11). The first end of the second torsion spring body (32) forms a third bent portion (303) bent along the width direction of the buckle body (20). The third bent portion (303) abuts against the back of the connecting plate (11).

5. The latch for lamps according to claim 4, characterized in that: The second end of the first torsion spring body (31) is connected to the second end of the second torsion spring body (32), so that the first torsion spring body (31) and the second torsion spring body (32) are a single piece.

6. The latch for lamps according to claim 5, characterized in that: The portion where the second end of the first torsion spring body (31) connects to the second end of the second torsion spring body (32) extends along the width direction of the buckle body (20).

7. The latch for a lamp according to any one of claims 1 to 6, characterized in that: The left and right sides of the connecting end (201) of the buckle body (20) each have connecting arms (23) extending toward the back of the buckle body (20). The second rotating shaft (122) is rotatably connected to the two connecting arms (23). The two connecting arms (23) of the buckle body (20) are plate-shaped and perpendicular to the buckle body (20). The two connecting arms (23) are provided with rotating shaft holes (230) for the two ends of the second rotating shaft (122) to pass through.

8. The latch for a lamp according to any one of claims 1 to 6, characterized in that: The buckle protrusion (21) is a rolled structure that rolls up from the free end (202) of the buckle body (20) toward the back.

9. The latch for a lamp as described in claim 8, characterized in that: The portion of the rolled structure that connects to the buckle body (20) is provided with reinforcing ribs (211).

10. A lamp fixture, comprising a lamp housing (4), the lamp housing (4) comprising an upper shell (41) with an open lower portion and a light-transmitting lampshade (42) fastened to the bottom opening of the upper shell (41), wherein the outer side wall of the upper shell (41) is further provided with a fastener capable of rotating vertically relative to the upper shell (41), characterized in that: The fastener is the same as that used for lamps according to any one of claims 1 to 9. The light-transmitting lampshade (42) has a locking position (420). The first pivot (121) of the connector (1) is rotatably connected to the upper shell (41). When the light-transmitting lampshade (42) and the upper shell (41) are assembled in place, the locking protrusion of the fastener (2) can be deflected downward and limited at the locking position (420).

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