Torsion spring supporting structure and lamp

The torsion spring support structure addresses the issue of automatically closing rear covers in lamps by using a support frame and torsion spring to keep the cover open, enhancing operational ease and safety.

CN223105904UActive Publication Date: 2025-07-15ジャン州立達信光電子科技有限公司
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Patent Information

Application Number
CN202422193949.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2025-07-15
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

In the existing split street lamp structure where the driving cavity is separated from the light source, the rear cover is easy to close automatically, resulting in difficulty in operation and risk of electric shock.

Method used

The torsion spring support structure is adopted, including a support frame and a torsion spring. It uses the torsion characteristics of the torsion spring to automatically bounce when the rear cover is opened, supporting the rear cover and preventing it from closing automatically.

Benefits of technology

It realizes automatic bounce of the back cover, simplifying operation, reducing labor costs, avoiding the risk of electric shock, and improving operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The torsional spring supporting structure comprises a supporting frame and a torsional spring, the supporting frame is provided with a supporting portion, a first installation portion and a second installation portion, the first installation portion and the second installation portion are formed by bending and extending the two ends of the supporting portion towards one side, and the supporting portion, the first installation portion and the second installation portion are located on the same plane. The torsional spring is arranged on the second installation part in a sleeving mode, and one end of the torsional spring abuts against one side of the supporting part. According to the structure, the torsional spring and the supporting frame are additionally arranged between the lamp bottom box and the surface cover. When the surface cover is opened, the supporting frame automatically pops up, the surface cover is fixed at a position which does not interfere with operation, troubleshooting and maintenance are facilitated, meanwhile, operation safety is improved, labor cost is saved, a second fixing part of the torsion spring is inserted into a bottom box fixing hole, deviation is prevented, and when the surface cover is closed, the supporting frame retracts into the bottom box by means of the torsion / reset characteristic of the torsion spring. Structural interference is avoided; and when opened, the support frame automatically pops up and is fixed, thereby preventing electric appliance electrification caused by automatic closing of the surface cover and preventing personnel injury.
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Description

Technical Field

[0001] The utility model relates to the field of lighting fixtures, and particularly to a torsion spring support structure and a lighting fixture. Background Art

[0002] In the existing split street lamp structure with the driving cavity separated from the light source on the market, the switch of the driving cavity is generally the lamp body main body and the rear cover cooperating with it, and the two generally adopt a hinge structure. When the rear cover is opened, due to the absence of a support structure, the rear cover of the lamp body is likely to automatically close due to the action of gravity, and manual assistance is required to hold the rear cover for operation, making the operation difficult and increasing the labor cost. If there are electrical components such as circuit breakers in the lamp body structure, after the rear cover automatically closes, the lamp body will change from a power-off state to a power-on state, posing a risk of electric shock to personnel.

[0003] Therefore, it is crucial to design a structure that can automatically pop up the rear cover and play a supporting role. Summary of the Utility Model

[0004] Aiming at the problem that the rear cover of the lamp body in the prior art is likely to automatically close, resulting in difficult operation and high risk, the utility model provides a torsion spring support structure and a lighting fixture to solve the above problems.

[0005] According to the first aspect of the present application, a torsion spring support structure is provided, which includes a support frame and a torsion spring. The support frame has a support portion, and a first installation portion and a second installation portion formed by bending and extending both ends of the support portion to one side. The support portion, the first installation portion, and the second installation portion are in the same plane; the torsion spring is sleeved on the second installation portion, and one end of the torsion spring abuts against one side of the support portion.

[0006] By adopting the above technical solution, the first installation portion and the second installation portion are used for rotational cooperation with the interior of the lighting fixture. At the same time, the torsion spring is sleeved on the second installation portion, and one end of the torsion spring abuts against one side of the support portion. When the other end of the torsion spring is fixed, when the support portion is stressed and rotates, the torsion spring can be twisted. When the external force acting on the support portion is removed, under the action of the torsion spring reset force, the automatic popping up of the support portion is realized.

[0007] In some specific embodiments, the support portion is a U-shaped frame with a circular cross-section. The first installation portion extends in a direction away from the end point where the second installation portion is located, and the second installation portion extends in a direction close to the end point where the first installation portion is located. The extension length of the second installation portion is greater than that of the first installation portion and less than the distance between the two end points of the support portion.

[0008] By adopting the above technical solution, the circular cross-section makes the overall rotation of the support frame more flexible. At the same time, the U-shaped frame of the support part plays a more stable supporting role. The extended length of the second installation part ensures that it will not close with the end point where the first installation part is located, leaving a gap for sleeving the torsion spring. At the same time, the relatively longer second installation part is also to reserve a certain sleeving space according to the length of the torsion spring.

[0009] In some specific embodiments, the two ends of the torsion spring extend with a first fixing part and a second fixing part. The first fixing part extends along one side of the support frame towards the recess of the U-shaped frame, and the initial included angle between the first fixing part and the second fixing part is 180°.

[0010] By adopting the above technical solution, the first fixing part can extend to the recess of the U-shaped frame of the support frame. When the torsion spring abuts against the support frame, it can play a better supporting role. At the same time, the initial included angle of 180° between the first fixing part and the second fixing part makes the included angle between the two gradually become smaller during the torsion process of the torsion spring. When the torsion spring returns, the included angle between the two will return to 180°. The greater the torsion strength of the torsion spring, the greater the acting force generated during its reset, and the greater the supporting force provided for the support frame.

[0011] In some specific embodiments, a U-shaped hook is further formed at the end of the first fixing part, and the recessed part of the U-shaped hook abuts against the support frame.

[0012] By adopting the above technical solution, the design of the U-shaped hook can better hold the support frame and prevent the cooperation between the first fixing part and the support frame from being unstable.

[0013] In some specific embodiments, a U-shaped limiting part is further formed at the end of the first installation part. The first installation part is perpendicular to the plane where the U-shaped limiting part is located, and the plane where the U-shaped limiting part is located is also perpendicular to the plane where the support part is located.

[0014] By adopting the above technical solution, when the support frame is installed inside the lamp, the U-shaped limiting part is used to prevent the support frame from slipping left and right during operation and avoid the detachment of the support frame.

[0015] According to the second aspect of the present application, a lamp is proposed, which includes the above-mentioned torsion spring support structure, and also includes a lamp bottom box and a face cover that are hinged and matched. The torsion spring support structure is rotatably arranged on the side wall of the lamp bottom box near the hinge. The second fixing part of the torsion spring is clamped with the lamp bottom box, and the side of the support frame away from the hinge abuts against the lower surface of the face cover, and the support frame rotates and twists the torsion spring.

[0016] By adopting the above technical solution, when the face cover rotates and forms a sealed space with the lamp base box, under the action of closing the face cover, the support frame twists the torsion spring. When the face cover is disengaged from the sealed fit with the lamp base box, the torsion spring starts to reset. Under the action of the reset force of the torsion spring, the support frame is forced to bounce upward, thereby bouncing the face cover up and playing a role in supporting the face cover to prevent it from falling, effectively avoiding the problem that the face cover automatically falls during the operation process.

[0017] In some specific embodiments, a first rotating seat and a second rotating seat are provided inside the lamp base box near the hinge. The central distance between the first rotating seat and the second rotating seat is the same as the distance between the two end points of the support frame.

[0018] By adopting the above technical solution, the first rotating seat and the second rotating seat respectively correspond to the first installation part and the second installation part of the support frame, and the corresponding distance setting makes the installation of the support frame more accurate.

[0019] In some specific embodiments, arc-shaped depressions adapted to the sizes of the first installation part and the second installation part are respectively provided at the tops of the first rotating seat and the second rotating seat. The first rotating seat and the second rotating seat respectively cooperate with a fixed pressing piece to form a rotating space for the first installation part and the second installation part to rotate.

[0020] By adopting the above technical solution, setting the arc-shaped depression is more adapted to the structure of the support frame, facilitating the rotation of the support frame. The cooperation between the first rotating seat, the second rotating seat and the fixed pressing piece not only forms a rotating space adapted to the first installation part and the second installation part, but also can prevent the support frame from shifting up and down, ensuring the stability of the cooperation.

[0021] In some specific embodiments, the torsion spring is placed between the first rotating seat and the second rotating seat. A fixed column is provided on the side of the second rotating seat facing the first rotating seat. A vertically downward fixing hole is provided on the top surface of the fixed column. The second fixing part extends vertically downward and is inserted into the fixing hole.

[0022] By adopting the above technical solution, by setting the fixing hole, the torsion spring can be stuck inside the lamp base box, realizing the locking of the installation position of the second fixing part. Furthermore, only the support frame needs to drive the first fixing part to move to twist the torsion spring.

[0023] In some specific embodiments, the same limiting bosses are also provided at the tops of the first rotating seat and the second rotating seat. Grooves adapted to the sizes of the limiting bosses are provided on the fixed pressing piece.

[0024] By adopting the above technical solution, the cooperation between the limiting boss and the groove makes the installation positioning of the fixed pressing piece more accurate, reducing the cumbersome positioning required during installation. At the same time, it also plays a role in preventing the situation where only one end of the fixed pressing piece is fixed and the other end will rotate.

[0025] The beneficial effects of the present application compared with the prior art are as follows:

[0026] In the torsion spring support structure of the present application, by adding a torsion spring and a support frame between the lamp bottom box and the face cover, when the face cover is opened, the support frame will automatically pop out and fix the face cover at a place that does not interfere with the operation of the operator, facilitating the operator's troubleshooting and maintenance work, ensuring the safety of the operator while saving labor costs. The second fixing part of the torsion spring is inserted into the fixing hole of the lamp bottom box to ensure that the torsion spring will not shift left and right during movement. Utilizing the torsion / reset characteristics of the torsion spring, when the face cover is closed, the support frame can be contracted into the lamp bottom box without causing structural interference. When the face cover is opened, the support frame automatically pops out and is fixed at a fixed position, facilitating the operator's troubleshooting, maintenance and other operations, and avoiding the situation where when there is an electrical component similar to a circuit breaker in the lamp during the operation of the operator, after the face cover automatically closes, the lamp will enter the powered-on state from the powered-off state, causing injury to the personnel. Description of the Drawings

[0027] The drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The drawings illustrate the embodiments and are used in conjunction with the description to explain the principles of the present invention. Other embodiments and many of the expected advantages of the embodiments will be readily apparent as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with each other. Like reference numerals refer to corresponding like parts.

[0028] Figure 1 is a schematic diagram of the torsion spring support structure according to an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of the lamp structure according to an embodiment of the present application;

[0030] Figure 3 is an installation schematic diagram of the torsion spring support structure according to an embodiment of the present application.

[0031] The meanings of the numbers in the figures are as follows:

[0032] Support frame 01, torsion spring 02, support part 03, first installation part 04, second installation part 05, first fixing part 06, second fixing part 07, U-shaped hook 08, U-shaped limiting part 09, lamp bottom box 10, face cover 11, first rotating seat 12, second rotating seat 13, fixing pressing piece 14, limiting boss 15, fixing column 16, fixing hole 17. Detailed Embodiments

[0033] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and illustrate illustrative specific embodiments in which the present utility model can be practiced. In this regard, directional terms such as "top", "bottom", "left", "right", "upper", "lower", etc. are used with reference to the orientation of the described figures. Since the components of the embodiments can be positioned in several different orientations, the directional terms are used for the purpose of illustration and are in no way limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present utility model. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the present utility model is defined by the appended claims.

[0034] According to a first aspect of the present application, a torsion spring support structure is provided. Figure 1 The schematic diagram of the torsion spring support structure according to an embodiment of the present application is shown. As shown in the figure, the structure includes a support frame 01 and a torsion spring 02. The support frame 01 has a support portion 03, and a first mounting portion 04 and a second mounting portion 05 formed by bending and extending both ends of the support portion 03 to one side. The support portion 03, the first mounting portion 04, and the second mounting portion 05 are in the same plane; the torsion spring 02 is sleeved on the second mounting portion 05, and one end of the torsion spring 02 abuts against one side of the support portion 03.

[0035] By adopting the above technical solution, the first mounting portion 04 and the second mounting portion 05 are used for rotational cooperation with the interior of the lamp. At the same time, the torsion spring 02 is sleeved on the second mounting portion 05, and one end of the torsion spring 02 abuts against one side of the support portion 03. When the other end of the torsion spring 02 is fixed, the support portion 03 can twist the torsion spring 02 when the support portion 03 is stressed and rotated. When the external force acting on the support portion 03 is removed, the support portion 03 can be automatically sprung up under the resetting force of the torsion spring 02.

[0036] In some specific embodiments, the support portion 03 is a U-shaped frame with a circular cross-section. The first mounting portion 04 extends in a direction away from the end point where the second mounting portion 05 is located, and the second mounting portion 05 extends in a direction close to the end point where the first mounting portion 04 is located. The extension length of the second mounting portion 05 is greater than that of the first mounting portion 04 and less than the distance between the two end points of the support portion 03.

[0037] By adopting the above technical solution, the circular cross-section enables the overall rotation of the support frame 01 to be more flexible. At the same time, the U-shaped frame of the support portion 03 plays a more stable supporting role. The extension length of the second mounting portion 05 ensures that it will not close with the end point where the first mounting portion 04 is located, leaving a gap for sleeving the torsion spring 02. At the same time, the relatively longer second mounting portion 05 also reserves a certain sleeving space according to the length of the torsion spring 02.

[0038] In some specific embodiments, first fixing portions 06 and second fixing portions 07 extend from two ends of the torsion spring 02. The first fixing portion 06 extends along one side of the support frame 01 towards the recess of the U-shaped frame, and the initial included angle between the first fixing portion 06 and the second fixing portion 07 is 180°.

[0039] By adopting the above technical solution, the first fixing portion 06 can extend to the recess of the U-shaped frame of the support frame 01. When the torsion spring 02 abuts against the support frame 01, it can play a better supporting role. At the same time, the initial included angle of 180° between the first fixing portion 06 and the second fixing portion 07 enables the included angle between the two to gradually decrease during the twisting process of the torsion spring 02. When the torsion spring 02 returns, the included angle between the two will return to 180°. The greater the twisting strength of the torsion spring 02, the greater the acting force generated during its reset, and the greater the supporting force provided for the support frame 01.

[0040] In some specific embodiments, a U-shaped hook 08 is further formed at the end of the first fixing portion 06, and the recessed portion of the U-shaped hook 08 abuts against the support frame 01.

[0041] By adopting the above technical solution, the design of the U-shaped hook 08 can better clamp the support frame 01 and prevent the cooperation between the first fixing portion 06 and the support frame 01 from being unstable.

[0042] In some specific embodiments, a U-shaped limiting portion 09 is further formed at the end of the first mounting portion 04. The first mounting portion 04 is perpendicular to the plane where the U-shaped limiting portion 09 is located, and the plane where the U-shaped limiting portion 09 is located is also perpendicular to the plane where the support portion 03 is located.

[0043] By adopting the above technical solution, when the support frame 01 is installed inside the lamp, the U-shaped limiting portion 09 is used to prevent the support frame 01 from slipping left and right during operation and avoid the detachment of the support frame 01.

[0044] According to the second aspect of the present application, a lamp is proposed. Figure 2 The structural schematic diagram of the lamp according to the embodiment of the present application is shown. Figure 3 The installation schematic diagram of the torsion spring support structure according to the embodiment of the present application is shown. As Figures 1-3 shown, the lamp includes the above-mentioned torsion spring support structure, and further includes a lamp bottom box 10 and a face cover 11 which are hinged. The torsion spring support structure is rotatably arranged on the side wall of the lamp bottom box 10 near the hinge. The second fixing portion 07 of the torsion spring 02 is clamped with the lamp bottom box 10, and one side of the support frame 01 away from the hinge abuts against the lower surface of the face cover 11. The support frame 01 rotates and twists the torsion spring 02.

[0045] By adopting the above technical solution, when the face cover 11 rotates and forms a sealed space with the lamp base box 10, the support frame 01 twists the torsion spring 02 under the force of closing the face cover 11, and when the face cover 11 and the lamp base box 10 are released from the sealed fit, the torsion spring 02 begins to reset, and under the force of the torsion spring 02 resetting, the support frame 01 is forced to bounce upward, thereby bouncing the face cover 11 and supporting the face cover 11 to prevent it from falling, effectively avoiding the problem of the face cover 11 automatically falling during operation.

[0046] In some specific embodiments, a first rotating seat 12 and a second rotating seat 13 are provided inside the lamp base box 10 near the hinge, and the center distance between the first rotating seat 12 and the second rotating seat 13 is the same as the distance between the two end points of the support frame 01.

[0047] By adopting the above technical solution, the first rotating seat 12 and the second rotating seat 13 correspond to the first mounting portion 04 and the second mounting portion 05 of the support frame 01 respectively, and the corresponding distance setting makes the installation of the support frame 01 more accurate.

[0048] In some specific embodiments, the tops of the first rotating seat 12 and the second rotating seat 13 are respectively provided with arc-shaped recesses adapted to the sizes of the first mounting portion 04 and the second mounting portion 05, and the first rotating seat 12 and the second rotating seat 13 are respectively cooperated with a fixed pressing plate 14 to form a rotating space for the first mounting portion 04 and the second mounting portion 05 to rotate.

[0049] Furthermore, when the torsion spring support structure is installed, the first mounting portion 04 and the second mounting portion 05 cooperate with the arc-shaped recesses of the first rotating seat 12 and the second rotating seat 13 respectively, and the fixed pressing plate 14 is fixed on the first rotating seat 12 and the second rotating seat 13 by threads to form a circular rotating space, so that the first mounting portion 04 and the second mounting portion 05 can rotate therein.

[0050] Furthermore, after the first mounting portion 04 is fixed, the U-shaped limiting portion 09 is placed on the outer side of the first rotating seat 12 and can resist the side wall of the first rotating seat 12 to play a limiting role. The second mounting portion 05 passes from the outer side of the second rotating seat 13 into the space between the first rotating seat 12 and the second rotating seat 13, thereby limiting the displacement in the left and right directions.

[0051] By adopting the above technical solution, an arc-shaped recess is provided to better fit the structure of the support frame 01, which facilitates the rotation of the support frame 01. The first rotating seat 12, the second rotating seat 13 and the fixed pressing plate 14 cooperate to not only form a rotation space adapted to the first mounting portion 04 and the second mounting portion 05, but also prevent the support frame 01 from shifting up and down, thereby ensuring the stability of the cooperation.

[0052] In some specific embodiments, a torsion spring 02 is disposed between a first rotating seat 12 and a second rotating seat 13. A fixing post 16 is provided on a side of the second rotating seat 13 facing the first rotating seat 12. A vertically downward fixing hole 17 is provided on the top surface of the fixing post 16. A second fixing portion 07 extends vertically downward and is snapped into the fixing hole 17.

[0053] During the installation process, the torsion spring 02 is sleeved on the second installation portion 05, and the second fixing portion 07 is first snapped into the fixing hole 17. The U-shaped hook 08 catches the supporting portion 03. Then, the first installation portion 04 and the second installation portion 05 are installed inside the lamp bottom box 10 through a fixing pressing plate 14. When the included angle between the first fixing portion 06 and the second fixing portion 07 is 180°, the support frame 01 is in an erected state, and the supporting portion 03 abuts against the face cover 11 to prevent it from falling. When the face cover 11 is pressed downward to close it with the lamp bottom box 10, the support frame 01 is forced to rotate downward and twists the torsion spring 02. At this time, the face cover 11 can be firmly fixed by fixing members such as buckles on the lamp bottom box 10. When the fixing members such as buckles are opened, the face cover 11 loses the locking force. Under the action of the rotational force generated by the reset of the torsion spring 02, the support frame 01 bounces upward, thereby automatically lifting the face cover 11 and preventing the face cover 11 from falling by itself.

[0054] By adopting the above technical solution, by providing the fixing hole 17, the torsion spring 02 can be stuck inside the lamp bottom box 10 to realize the installation position of locking the second fixing portion 07. Furthermore, only by driving the first fixing portion 06 by the support frame 01 can the torsion spring 02 be twisted.

[0055] In some specific embodiments, the same limiting bosses 15 are further provided on the tops of the first rotating seat 12 and the second rotating seat 13. Grooves adapted to the sizes of the limiting bosses 15 are provided on the fixing pressing plate 14.

[0056] By adopting the above technical solution, by using the cooperation of the limiting bosses 15 and the grooves, the installation and positioning of the fixing pressing plate 14 are more accurate, reducing the cumbersome positioning required during installation. At the same time, it also prevents the situation that only one end of the fixing pressing plate 14 is fixed and the other end rotates.

[0057] The torsion spring support structure of the present application adds a torsion spring 02 and a support frame 01 between the lamp bottom box 10 and the face cover 11. When the face cover 11 is opened, the support frame 01 will automatically pop out and fix the face cover 11 at a place that does not interfere with the operation of the operator, facilitating the operator's troubleshooting and maintenance work, ensuring the safety of the operator while saving labor costs. The second fixing part 07 of the torsion spring 02 is inserted into the fixing hole 17 of the lamp bottom box 10 to ensure that the torsion spring 02 will not shift left and right during movement. Utilizing the torsion / reset characteristic of the torsion spring 02, when the face cover 11 is closed, the support frame 01 can be retracted into the lamp bottom box 10 without causing structural interference. When the face cover 11 is opened, the support frame 01 automatically pops out and is fixed at a fixed position, facilitating the operator's troubleshooting, maintenance and other operations, and avoiding the situation where, during the operation of the operator, there is an electrical component similar to a circuit breaker in the lamp, and after the face cover 11 automatically closes, the lamp will change from a power-off state to a power-on state, causing injury to the personnel.

[0058] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalent forms, the present invention also aims to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims should not be construed as limiting the scope.

Claims

1. A torsion spring support structure, characterized in that, It includes a support frame and a torsion spring. The support frame has a support portion, and a first mounting portion and a second mounting portion formed by bending and extending both ends of the support portion to one side. The support portion, the first mounting portion, and the second mounting portion are in the same plane. The torsion spring is sleeved on the second mounting portion, and one end of the torsion spring abuts against one side of the support portion.

2. The torsion spring support structure according to claim 1, characterized in that, The support portion is a U-shaped frame with a circular cross-section. The first mounting portion extends in a direction away from the end point where the second mounting portion is located. The second mounting portion extends in a direction close to the end point where the first mounting portion is located. The extension length of the second mounting portion is greater than that of the first mounting portion and less than the distance between the two end points of the support portion.

3. The torsion spring support structure according to claim 2, characterized in that, Both ends of the torsion spring extend out with a first fixing portion and a second fixing portion. The first fixing portion extends along one side of the support frame towards the concave portion of the U-shaped frame, and the initial included angle between the first fixing portion and the second fixing portion is 180°.

4. The torsion spring support structure according to claim 3, wherein A U-shaped hook is further formed at the end of the first fixing portion, and the concave portion of the U-shaped hook abuts against one side of the support frame.

5. The torsion spring support structure according to claim 2, characterized in that, A U-shaped limiting portion is further formed at the end of the first mounting portion. The first mounting portion is perpendicular to the plane where the U-shaped limiting portion is located, and the plane where the U-shaped limiting portion is located is also perpendicular to the plane where the support portion is located.

6. A lighting fixture, comprising the torsion spring support structure according to any one of claims 1-5, characterized in that, It further includes a lamp base box and a face cover that are hinged together. The torsion spring support structure is rotatably arranged on the side wall of the lamp base box near the hinge. The second fixing portion of the torsion spring is clamped with the lamp base box, and one side of the support frame away from the hinge abuts against the lower surface of the face cover. The support frame rotates and twists the torsion spring.

7. The luminaire according to claim 6, characterized in that, A first rotating seat and a second rotating seat are arranged inside the lamp base box near the hinge. The central distance between the first rotating seat and the second rotating seat is the same as the distance between the two end points of the support frame.

8. The luminaire according to claim 7, characterized in that, Arc-shaped depressions adapted to the sizes of the first mounting portion and the second mounting portion are respectively provided at the tops of the first rotating seat and the second rotating seat. The first rotating seat and the second rotating seat are respectively combined with a fixed pressing piece to form a rotating space for the first mounting portion and the second mounting portion to rotate.

9. The luminaire according to claim 7, characterized in that, The torsion spring is placed between the first rotating seat and the second rotating seat. A fixed column is provided on one side of the second rotating seat facing the first rotating seat, and a vertically downward fixing hole is provided on the top surface of the fixed column. The second fixing portion extends vertically downward and is inserted into the fixing hole.

10. The luminaire according to claim 8, characterized in that, The tops of the first rotating seat and the second rotating seat are also provided with the same limiting bosses, and grooves adapted to the sizes of the limiting bosses are provided on the fixed pressing piece.