Folding head

Abstract

The utility model relates to a folding head. The folding head comprises a first part, a second part, a pressing part and an elastic part, the first part is hinged to the second part; the first part is provided with a movable groove; the second part is provided with a first clamping position; the pressing part comprises a pushing plate and a bulge, and the pushing plate is fixedly connected with the bulge; the elastic component comprises a first telescopic end and a second telescopic end, the first telescopic end is connected with the first component, the second telescopic end is connected with the pushing plate, and telescopic tracks of the first telescopic end and the second telescopic end are collinear; when the elastic component is in a first compression state, the bulge is inserted into the movable groove and the first clamping position; when the elastic component is in a second compression state, the protrusion is located outside the first clamping position, and the compression stroke of the second compression state is longer than that of the first compression state. According to the scheme, labor can be saved.

Description

Technical Field

[0001] This application relates to the field of support, suspension or connection devices for lighting fixtures, and more particularly to a folding head. Background Technology

[0002] Television studios, theaters, performance halls, bars, and mobile performance venues all require stage lighting to create the desired lighting environment. Because stage lighting needs to be frequently adjusted according to the performance content, it is generally installed and fixed in a detachable manner—the lights are hung on rods or trusses using light hooks.

[0003] A lamp hook typically includes a hook body for hooking onto the boom, a clamping device for securing the boom, and a base. On one hand, to allow for angle adjustment of the lamp hook so that it can rotate and be positioned within a certain angle range to meet the fixing needs of different scenarios; on the other hand, to allow the lamp hook to be folded up after installation for convenient storage, packaging, and transportation, a flipping mechanism—a folding head—is also provided between the lamp hook and the lamp.

[0004] The existing folding head includes a first lug and a second lug respectively located on the hook body and the base. The first lug and the second lug are hinged together by a hinge pin. A positioning mechanism is provided between the first lug and the second lug to self-lock the hook body onto the base. The positioning mechanism includes an elongated hole radially located on the hinge pin of the first lug. The second lug has an arcuate surface concentric with the hinge pin, and a limiting groove is provided on the arcuate surface. The arcuate surface of the second lug intersects with the elongated hole on the first lug. A limiting shaft is inserted into the elongated hole and is pulled towards the hinge pin by an elastic member. When the second lug is outside the first lug, the limiting shaft passes through the elongated hole, and both ends of the limiting shaft extend from both sides of the elongated hole and are engaged in the limiting groove. The middle part of the unlocking member is movably hinged to the first lug, and one end of the unlocking member abuts against the inner side of the limiting shaft. When the other end of the unlocking member is manually pressed, the unlocking member pushes the limiting shaft out of the limiting groove under the action of leverage.

[0005] Existing folding mechanisms employ complex unlocking structures involving multiple interconnected components, requiring the coordinated operation of a limiting shaft, unlocking components, and elastic components to complete the unlocking action. During this process, the unlocking force must be transmitted through multiple components before reaching the limiting shaft, and the initial direction of the unlocking force is not consistent with the direction of force applied to the limiting shaft. Because the non-collinear force transmission leads to significant energy loss, unlocking is relatively laborious. Summary of the Invention

[0006] This application provides a folding head to solve the technical problem that the direction of force in the transmission of complex unlocking structures in the prior art is deflected, making unlocking more difficult.

[0007] To achieve the above objectives, the first aspect of this application provides a folding head, comprising:

[0008] First component, second component, pressing component, and elastic component;

[0009] The first component and the second component are hinged together;

[0010] The first component is provided with a movable groove;

[0011] The second component is equipped with a first locking position;

[0012] The pressing component includes a push plate and a protrusion, the push plate and the protrusion being fixedly connected;

[0013] The elastic component includes a first telescopic end and a second telescopic end. The first telescopic end is connected to the first component, and the second telescopic end is connected to the push plate. The telescopic trajectories of the first telescopic end and the second telescopic end are collinear.

[0014] When the elastic component is in the first compressed state, the protrusion is inserted into the movable groove and the first locking position;

[0015] When the elastic component is in the second compression state, the protrusion is located outside the first locking position, and the compression stroke of the second compression state is longer than that of the first compression state.

[0016] In the first possible implementation of the folded head in the first aspect:

[0017] It also includes assembly bolts;

[0018] The first component includes a first side plate and a second side plate that are parallel to each other, with the first side plate and the second side plate spaced apart from each other.

[0019] The direction from the first side plate to the second side plate is the first direction;

[0020] The elastic component extends and retracts in the second direction, and the first direction is perpendicular to the second direction.

[0021] Both the first side plate and the second side plate are provided with the movable groove;

[0022] The depth direction of the active groove is perpendicular to the first direction and parallel to the second direction;

[0023] The second component includes a third side plate and a fourth side plate that are parallel to each other and are spaced apart from each other.

[0024] Both the third side plate and the fourth side plate are provided with the first locking position;

[0025] When the elastic component is in the first compressed state, the first locking position corresponds to the movable groove of the first side plate;

[0026] The first side plate and the second side plate are located between the third side plate and the fourth side plate, and the first side plate is parallel to the third side plate;

[0027] The first side plate, the second side plate, the third side plate, and the fourth side plate are all provided with assembly holes that extend along the first direction and correspond to each other;

[0028] The assembly bolts pass through the four assembly holes.

[0029] In conjunction with the first possible implementation of the folding head of the first aspect, in the second possible implementation of the folding head of the first aspect:

[0030] The push plate corresponds to the spacing between the first side plate and the second side plate;

[0031] The push plate includes a pressing plate and a connecting plate connected at right angles;

[0032] The surface of the pressing plate is parallel to the first direction and perpendicular to the second direction;

[0033] The protrusion is fixedly connected to the connecting plate, and the direction of the protrusion is parallel to the first direction;

[0034] The protrusion is located within the movable groove.

[0035] In conjunction with the second possible implementation of the folding head in the first aspect, the third possible implementation of the folding head in the first aspect further includes:

[0036] The pressing plate has a fixing post extending along the first direction on the side facing the assembly bolt;

[0037] The first telescopic end is connected to the fixed column, and the second telescopic end is connected to the assembly bolt.

[0038] In conjunction with the second possible implementation of the folding head in the first aspect, in the fourth possible implementation of the folding head in the first aspect:

[0039] The first component also includes a first connecting plate, the surface of which is fixedly connected to the first end face of the first side plate and the second side plate. The first end face is parallel to the first direction and the second direction and is located outside the gap between the third side plate and the fourth side plate.

[0040] The second component also includes a second connecting plate, which is fixedly connected to the first side surface of the third side plate and the fourth side plate. In the first compressed state, the first side surface is parallel to the first end face and is located outside the gap between the first side plate and the second side plate.

[0041] In conjunction with the fourth possible implementation of the folding head in the first aspect, in the fifth possible implementation of the folding head in the first aspect:

[0042] Both the first side plate and the second side plate are provided with a first rounded corner. The first rounded corner connects the second end face and the third end face. The second end face is parallel to the first end face, and the third end face is perpendicular to the first end face and located on the side where the movable groove is located.

[0043] In conjunction with the fifth possible implementation of the folding head in the first aspect, in the sixth possible implementation of the folding head in the first aspect:

[0044] The first card slot is a right-angled first card slot opened on the third side plate and the fourth side plate;

[0045] The first locking position is located at the end of the second side in the second direction, and the second side is parallel to the first side.

[0046] In conjunction with the sixth possible implementation of the folding head in the first aspect, in the seventh possible implementation of the folding head in the first aspect:

[0047] The third side of both the third side plate and the fourth side plate is provided with a right-angled second slot, which is perpendicular to the first side and located on the side where the first slot is located.

[0048] The first card slot and the second card slot are connected by a second rounded corner.

[0049] In conjunction with the fifth possible implementation of the folding head in the first aspect, in the eighth possible implementation of the folding head in the first aspect:

[0050] The first connecting plate has a first connecting hole that penetrates the plate surface vertically.

[0051] The first connecting hole is fitted with a first connecting bolt;

[0052] The first connecting bolt is used to connect the lamp hook.

[0053] In conjunction with the fifth possible implementation of the folding head in the first aspect, in the ninth possible implementation of the folding head in the first aspect:

[0054] The second connecting plate has a second connecting hole that penetrates the plate surface;

[0055] The second connecting hole is equipped with a second connecting bolt;

[0056] The second connecting bolt is used to connect the lamp.

[0057] The technical solution provided in this application may include the following beneficial effects:

[0058] The folding head provided in this application includes a first component, a second component, a pressing component, and an elastic component; the first component and the second component are hinged; the first component is provided with a movable groove; the second component is provided with a first locking position; the pressing component includes a push plate and a protrusion, and the push plate and the protrusion are fixedly connected; the first telescopic end of the elastic component is connected to the first component, and the second telescopic end is connected to the push plate, and the telescopic trajectories of the two ends are on the same straight line, forming a linear transmission structure. Without pressing, the push plate, pushed by the restoring force of the elastic component in the first compressed state, pulls the protrusion located in the movable groove of the first component into the first locking position of the second component. The first and second components cannot rotate relative to each other due to the limitation of the protrusion, thus achieving locking. When unlocking is required, a pressing force parallel to the extension and retraction direction of the elastic component is applied to the push plate. The elastic component is further compressed in a straight line, moving from the first compressed state to the second compressed state. At the same time, the protrusion is pushed to slide straight out of the first locking position along the movable groove, that is, the protrusion is released from the limitation of the second component. The limitation of the second component on the first component is released, and the first component can rotate relative to the second component. During the unlocking process, the transmission of the unlocking force always remains in the same direction without any deviation, so the energy loss is small, thus achieving effortless unlocking.

[0059] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0060] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0061] Figure 1 This is a schematic diagram illustrating the assembly of a folding head according to an embodiment of this application;

[0062] Figure 2 This is another assembly schematic diagram of a folding head shown in an embodiment of this application;

[0063] Figure 3 This is an exploded view of a folding head as shown in an embodiment of this application;

[0064] Figure 4 This is a partial structural schematic diagram of a folding head shown in an embodiment of this application;

[0065] Figure 5 This is a schematic diagram of the pressing component shown in the embodiments of this application;

[0066] Figure 6 This is a schematic diagram of the structure of the first side plate shown in an embodiment of this application;

[0067] Figure 7 This is a schematic diagram of the structure of the third side plate shown in an embodiment of this application;

[0068] Figure 8 This is a schematic diagram of the structure of the elastic component shown in the embodiments of this application;

[0069] Figure 9 This is a schematic diagram of the assembly bolt structure shown in the embodiments of this application;

[0070] Wherein: 10-First component, 11-First connecting plate, 11.1-First connecting hole, 12-First side plate, 12.1-First rounded corner, 12.2-Assembly hole, 12.3-Modible groove, 13-Second side plate, 20-Second component, 21-Second connecting plate, 21.1-Second connecting hole, 22-Third side plate, 22.1-Second rounded corner, 22.2-First locking position, 22.3-Second locking position, 23-Fourth side plate, 30-Pressing component, 31-Push plate, 31.1-Pressing plate, 31.11-Fixing post, 31.2-Connecting plate, 32-Protrusion, 40-Elastic component, 41-First telescopic end, 42-Second telescopic end, 50-Assembly bolt, 51-Assembly nut, 52-Assembly spindle, 60-First connecting bolt, 70-Second connecting bolt Detailed Implementation

[0071] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0072] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0073] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0074] In the description of this application, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0075] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0076] Existing folding mechanisms employ complex unlocking structures involving multiple interconnected components, requiring the coordinated operation of a limiting shaft, an unlocking component, and an elastic component to complete the unlocking action. During this process, the unlocking force must pass through multiple components before reaching the elastic component, and the initial direction of the unlocking force is not consistent with the final direction of the force acting on the elastic component. Because the non-collinear force transmission leads to some energy loss, a larger force is required for unlocking. Example

[0077] Please see Figures 1 to 9 This application provides a folding head, comprising:

[0078] The device comprises a first component 10, a second component 20, a pressing component 30, and an elastic component 40; the first component 10 and the second component 20 are hinged together; the first component 10 is provided with a movable groove 12.3; the second component 20 is provided with a first locking position 22.2; the pressing component 30 includes a push plate 31 and a protrusion 32, which are fixedly connected; the elastic component 40 includes a first telescopic end 41 and a second telescopic end 42, which are connected to the first component 10 and to the push plate 31, and their telescopic trajectories are collinear; when the elastic component 40 is in a first compressed state, the protrusion 32 is inserted into the movable groove 12.3 and the first locking position 22.2; when the elastic component 40 is in a second compressed state, the protrusion 32 is located outside the first locking position 22.2, and the compression stroke in the second compressed state is longer than that in the first compressed state.

[0079] It should be noted that:

[0080] The first component 10 and the second component 20 are the basic structural units of the folding head. The first component 10 provides a bearing surface for the lamp hook installation, and the second component 20 provides a bearing surface for the lamp installation. The first component 10 and the second component 20 are connected by a hinge, and together they constitute the main frame structure of the folding head, forming a relatively rotatable connection. The movable groove 12.3 provided on the first component 10 provides a motion guide track for the protrusion 32 of the pressing component 30. When in the first compressed state, the first locking position 22.2 provided on the second component 20 corresponds to the movable groove 12.3 of the first component 10. Since the protrusion 32 fits into the first locking position 22.2 and is in the movable groove 12.3, the protrusion 32, in conjunction with the elastic component 40, can lock the movement of the protrusion 32, thereby locking the first component 10 and the second component 20, preventing the first component 10 and the second component 20 from rotating relative to each other.

[0081] The pressing component 30 is the operational actuator for the folding head's state transition. It achieves this function switching through cooperation with the elastic component 40, the movable groove 12.3, and the first locking position 22.2. When the folding head needs to be unlocked, external force acts on the push plate 31, causing the elastic component 40 to transition from a first compressed state to a second compressed state with a greater compression. The push plate 31 overcomes the elastic force of the elastic component 40, driving the protrusion 32 to move in the direction of disengaging from the first locking position 22.2. When the protrusion 32 is completely disengaged from the first locking position 22.2, the restriction on the relative rotation of the first component 10 and the second component 20 is released, and the folding head enters a movable state, allowing the lamp hook position to be adjusted. When the external force is removed, the elastic component 40 resets, and its elastic force pushes the pressing component 30 to move in the opposite direction, causing the protrusion 32 to move along the movable groove 12.3 and engage with the first locking position 22.2. The elastic component 40 returns to the first compressed state, and the folding head is relocked.

[0082] The elastic component 40 achieves the state transition of the first component 10 through its own expansion and contraction deformation within the folding head structure. When the folding head is in the locked state, the elastic component 40 is in the first compressed state. At this time, the elastic potential energy causes the protrusion 32 to be firmly inserted into the movable groove 12.3 of the first component 10 and the first locking position 22.2 of the second component 20, restricting the relative rotation of the first component 10 and the second component 20, maintaining the fixed shape of the folding head, and ensuring the stability of the lamp hook position. When an external force is applied to the pressing component 30, the pushing plate 31 overcomes the resistance of the elastic component 40, driving the protrusion 32 to move, compressing the elastic component 40 to the second compressed state, further increasing the elastic potential energy. In this state, the protrusion 32 disengages from the first locking position 22.2, and the first component 10 and the second component 20 can rotate relative to each other around the hinge axis, thereby unlocking the folding head and completing the lamp hook position transition operation. When the external force is removed, the elastic component 40 returns to its original position using its stored elastic potential energy, pushing the pressing component 30 to re-engage the protrusion 32 with the first locking position 22.2, and the elastic component 40 returns to its first compressed state. Therefore, the elastic component 40 can be a spring, a pneumatic rod, elastic plastic, or two repulsive magnets.

[0083] The movable groove 12.3 serves as the movement track for the protrusion 32 of the pressing component 30. The movable groove 12.3 is located in the first component 10. The shape, size, and extension direction of the groove strictly limit the displacement path of the protrusion 32, ensuring that the protrusion 32 moves linearly along the movable groove 12.3, and that the direction of movement of the protrusion is consistent with the compression direction of the elastic component 40. When an external force drives the pressing component 30, the protrusion 32 slides along the movable groove 12.3 and disengages from the first locking position 22.2. The protrusion 32 moves within the movable groove 12.3 along a preset path, thus unlocking. After the external force is removed, the elastic component 40 resets, causing the protrusion 32 to slide in the opposite direction along the movable groove 12.3.

[0084] When the protrusion 32 is simultaneously embedded in the movable groove 12.3 of the first component 10 and the first locking position 22.2 of the second component 20, the protrusion 32 is tightly engaged in the first locking position 22.2 due to the stretching of the elastic component 40. The protrusion 32 thus constrains the bottom and sidewall of the movable groove 12.3, limiting the relative rotation of the first component 10 and the second component 20. The continuous application of elastic force by the elastic component 40 ensures that the protrusion 32 remains engaged in the first locking position 22.2, thereby ensuring that the structure remains secure in the locked state and maintaining the stability of the lamp hook position. When it is necessary to unlock the folding head, external force is applied to the pressing component 30 connected to the protrusion 32, pushing the protrusion 32 to overcome the resistance of the elastic component 40, slide along the preset track of the movable groove 12.3, and disengage from the first locking position 22.2. During this process, an external operating force drives the protrusion 32 to disengage from the first locking position 22.2, causing the protrusion to break free from the constraint of the first locking position 22.2 of the second component 20. This enables relative rotation between the first component 10 and the second component 20, completing the unlocking of the folding head and providing conditions for adjusting the position of the lamp hook. After the external force is removed, the elastic component 40 resets, and the resulting elastic force drives the protrusion 32 to slide in the opposite direction along the movable groove 12.3.

[0085] The first locking position 22.2 is located on the second component 20, and its internal contour matches the shape of the protrusion 32, allowing them to mechanically engage. When the folding head is locked, the protrusion 32 is embedded in the first locking position 22.2 under the elastic force of the elastic component 40. When the folding head needs to be unlocked, external force pushes the pressing component 30 to move the protrusion 32. The protrusion 32 overcomes the resistance of the elastic component 40, slides along the movable groove 12.3, and disengages from the first locking position 22.2. After the first locking position 22.2 releases its constraint on the protrusion 32, the first component 10 is no longer restricted by mechanical engagement and can rotate relative to the second component 20, allowing the folding head to enter a movable state and enabling the adjustment of the lamp hook position. After the external force is removed, the elastic component 40 resets and drives the protrusion 32 to slide in the opposite direction. After the protrusion 32 re-engages in the first locking position 22.2, the folding head returns to the locked state, and the first locking position 22.2 again constrains the protrusion 32, ensuring structural stability.

[0086] It should be noted that the shapes of the movable groove 12.3, the protrusion 32, and the locking position are closely related, achieving synergistic function through geometric complementarity. The movable groove 12.3 can adopt regular shapes such as rectangles or trapezoids, which can provide linear guidance for the movement of the protrusion 32. The locking structure can be U-shaped or L-shaped, and the displacement of the protrusion 32 is restricted by the elastic component 40. The shape of the protrusion 32 must be compatible with both the movable groove 12.3 and the locking position; it can be a columnar structure or a plate-like structure. The protrusion 32 engages with the corresponding shaped locking position and can simultaneously move linearly within the movable groove 12.3.

[0087] Beneficial effects: The folding head provided in this application includes a first component 10, a second component 20, a pressing component 30, and an elastic component 40; the first component 10 and the second component 20 are hinged; the first component 10 is provided with a movable groove 12.3; the second component 20 is provided with a first locking position 22.2; the pressing component 30 includes a push plate 31 and a protrusion 32, which are fixedly connected; the first telescopic end 41 of the elastic component 40 is connected to the first component 10, and the second telescopic end 42 is connected to the push plate 31, and the telescopic trajectories of the two ends are on the same straight line, forming a linear transmission structure. When the folding head needs to be locked, the elastic component 40 returns from other compressed states to the first compressed state, and the second telescopic end 42 applies a pushing force to the push plate 31, causing the push plate 31 to drive the protrusion 32 to embed into the first locking position 22.2 of the second component 20, and at the same time, the protrusion 32 also passes through the movable groove 12.3 of the first component 10. When the elastic component 40 is in the first compressed state, the push plate 31, under the pushing action of the elastic component 40, causes the protrusion 32 to fit tightly against the inner wall of the first locking position 22.2. Simultaneously, since the protrusion 32 is inserted into the movable groove 12.3, it prevents the first component 10 from rotating relative to the second component 20, thus achieving a locked state for the folding head. When external pressure is applied to the push plate 31, since the extension and retraction trajectories of both ends of the elastic component 40 are on the same straight line, the elastic component 40 is compressed linearly to the second compressed state (compression stroke greater than the first state). The push plate 31 moves linearly along the extension and retraction direction of the elastic component 40, causing the protrusion 32 to gradually disengage from the first locking position 22.2 in a linear motion. The engagement between the protrusion 32 and the first locking position 22.2 is released, and the first component 10 can rotate relative to the second component 20, thus unlocking the folding head. Since the extension and retraction trajectory of the elastic component 40 is on the same straight line as the movement direction of the push plate 31, the force transmission path has no angular deviation, so that the operating force is directly converted into the translational force of the protrusion 32, reducing the amount of force required to unlock the folding head.

[0088] Specifically, assembly bolts 50 are provided to better hinge the first component 10 and the second component 20; the first component 10 includes a first side plate 12 and a second side plate 13 that are parallel to each other, with the first side plate 12 and the second side plate 13 spaced apart and opposite each other; the direction from the first side plate 12 to the second side plate 13 is the first direction; the extension and retraction direction of the elastic component 40 is the second direction, and the first direction is perpendicular to the second direction; both the first side plate 12 and the second side plate 13 are provided with movable grooves 12.3; the groove depth direction of the movable grooves 12.3 is perpendicular to the first direction and parallel to the second direction; the second component 20 includes a third side plate 22 and a fourth side plate 23 that are parallel to each other. 3. The third side plate 22 and the fourth side plate 23 are spaced apart and opposite each other; both the third side plate 22 and the fourth side plate 23 are provided with a first locking position 22.2; when the elastic member 40 is in the first compressed state, the first locking position 22.2 corresponds to the movable groove 12.3 of the first side plate 12; the first side plate 12 and the second side plate 13 are located between the third side plate 22 and the fourth side plate 23, and the first side plate 12 is parallel to the third side plate 22; the first side plate 12, the second side plate 13, the third side plate 22 and the fourth side plate 23 are all provided with assembly holes 12.2 that extend along the first direction and correspond to each other; the assembly bolts 50 pass through the four assembly holes 12.2. Thus, by opening corresponding assembly holes 12.2 extending along a first direction (from the first side plate 12 to the second side plate 13) on the first side plate 12 and the second side plate 13 of the first component 10 and the third side plate 22 and the fourth side plate 23 of the second component 20, and using assembly bolts 50 to pass through the four assembly holes 12.2, a hinged connection structure is formed, allowing the first component 10 and the second component 20 to rotate around the bolt axis. In this embodiment, the first component 10 has a "U"-shaped three-dimensional structure, composed of the first side plate 12 and the second side plate 13. The first side plate 12 and the second side plate 13 are parallel and spaced apart, and both have movable grooves 12.3 on their sides. These two movable grooves 12.3 are at the same horizontal height, have completely identical dimensions, and have the same shape, depth, and length, providing a sliding track space for the protrusion 32 of the pressing component 30. At the same time, assembly holes 12.2 are respectively opened at the center positions of the first side plate 12 and the second side plate 13. The two assembly holes 12.2 are centrally symmetrically distributed, with identical hole diameters, depths, and positioning dimensions. They allow for hinged connection between the first component 10 and the second component 20 via through bolts. The second component 20 also employs a U-shaped three-dimensional structure, consisting of a third side plate 22 and a fourth side plate 23. The third side plate 22 and the fourth side plate 23 are parallel and spaced apart, with locking structures at their inner ends. These two locking structures are identical in horizontal height and dimensions, engaging with the protrusion 32 of the pressing component 30 to lock the relative positions of the first component 10 and the second component 20. Assembly holes 12.2 are respectively provided at the center of the third side plate 22 and the fourth side plate 23.The two assembly holes 12.2 have identical diameters, depths, and positioning dimensions, allowing the second component 20 to be hinged to the first component 10 by inserting assembly bolts 50. The four assembly holes 12.2 of the first component 10 and the second component 20 correspond to each other, and the line connecting the four assembly holes 12.2 is parallel to the direction from the first side plate 12 to the second side plate 13, so that the assembly bolts 50 can pass through all the assembly holes 12.2, thereby hinged to the first component 10 and the second component 20. The distance between the first side plate 12 and the second side plate 13 is less than the distance between the third side plate 22 and the fourth side plate 23. The openings of the first component 10 and the second component 20 face each other. The assembly bolts 50 include assembly nuts 51 and assembly spindles 52.

[0089] Specifically, the push plate 31 corresponds to the spacing between the first side plate 12 and the second side plate 13; the push plate 31 includes a pressing plate 31.1 and a connecting plate 31.2 connected at right angles; the surface of the pressing plate 31.1 is parallel to the first direction and perpendicular to the second direction; a protrusion 32 is fixedly connected to the connecting plate 31.2, and the direction of the protrusion 32 is parallel to the first direction; the protrusion 32 is located in the movable groove 12.3. Thus, an "L"-shaped structure is adopted in which the pressing plate 31.1 and the connecting plate 31.2 are connected at right angles, wherein the surface of the pressing plate 31.1 is parallel to the first direction (the direction from the first side plate 12 to the second side plate 13) and perpendicular to the second direction (the extension and retraction direction of the elastic member 40), and the connecting plate 31.2 is fixedly perpendicular to the pressing plate 31.1. The protrusion 32 is fixedly connected to the connecting plate 31.2, and its extension direction is parallel to the first direction, so that the protrusion 32 can be embedded in the movable groove 12.3. Figure 2 As shown, in this embodiment, the first direction is the left-right direction, and the second direction is the front-back direction. The flat connecting plate 31.2 is located in the upper middle part of the hollow area enclosed by the first component 10 and the second component 20 after hinge. The front end of the left side of the connecting plate 31.2 is provided with a square protrusion 32 extending to the left, and the front end of the right side of the connecting plate 31.2 is provided with a square protrusion 32 extending to the right. The shape and size of the protrusion 32 are adapted to the movable groove 12.3 of the first component 10 and the locking position of the second component 20. Figure 1As shown, the pressing plate 31.1 is a flat plate structure, with its upper side flush with the rear end of the lower plate of the connecting plate 31.2. The lower plate of the connecting plate 31.2 and the front plate of the pressing plate 31.1 form a right angle. To reduce the sharpness of the pressing component 30, the outer right angle at the connection between the connecting plate 31.2 and the pressing plate 31.1 is rounded. For convenient pressing and to ensure sufficient pressing force, the pressing plate 31.1 is designed to be located outside the hollow area formed by the hinge of the first component 10 and the second component 20 in the first compressed state. The rear plate of the pressing plate 31.1 is the pressing area. A bolt hole extending from back to front is opened on both the left and right sides of the pressing plate 31.1. After the bolt passes through the hole from back to front, its protruding part relative to the front plate of the pressing plate 31.1 forms a fixing post 31.11, which is used for fixed connection with the rear end of the elastic component 40.

[0090] Specifically, to connect the elastic component 40, a fixing post 31.11 extending in a first direction is provided on the side of the pressing plate 31.1 facing the assembly bolt 50; the first telescopic end 41 is connected to the fixing post 31.11, and the second telescopic end 42 is connected to the assembly bolt 50. Thus, one end of the elastic component 40 is connected to the pressing plate 31.1 via the fixing post 31.11, and the assembly bolt 50 serves as the connection point for the other end of the elastic component 40, forming a straight force transmission path of "fixing post 31.11—elastic component 40—assembly bolt 50". In this embodiment, the pressing plate 31.1 has bolt holes; when the bolt passes through these holes, its protruding portion forms the fixing post 31.11, used for connection and fixation with the elastic component 40.

[0091] Specifically, to facilitate smoother switching between locking and unlocking the folding head, a first connecting plate 11 is added to the first component 10. The surface of the first connecting plate 11 is fixedly connected to the first end face of the first side plate 12 and the second side plate 13. The first end face is parallel to the first and second directions and is located outside the gap between the third side plate 22 and the fourth side plate 23. The second component 20 also includes a second connecting plate 21, which is fixedly connected to the first side face of the third side plate 22 and the fourth side plate 23. In the first compressed state, the first side face is parallel to the first end face and is located outside the gap between the first side plate 12 and the second side plate 13. By fixing the first connecting plate 11 of the first component 10 to the first end face of the first side plate 12 and the second side plate 13, and ensuring that the first end face is located outside the gap between the third side plate 22 and the fourth side plate 23, conditions are created for the corresponding positioning of the movable groove 12.3 of the first component 10 and the second component 20. Meanwhile, the second connecting plate 21 of the second component 20 is fixedly connected to the first side of the third side plate 22 and the fourth side plate 23, and the first side is located outside the gap between the first side plate 12 and the second side plate 13, providing sufficient space for relative rotation between the first component 10 and the second component 20. Figure 2As shown, in this embodiment, the first direction is the left-right direction, and the second direction is the front-back direction. The first side plate 12 and the second side plate 13 are flat plates of the same shape and size. The right side surface of the first side plate 12 and the left side surface of the second side plate 13 are parallel and aligned in the left-right direction. The upper end surfaces of the first side plate 12 and the upper end surfaces of the second side plate 13 are respectively aligned and fixedly connected to the left and right ends of the lower plate surface of the first connecting plate 11, forming a U-shaped structure with the opening facing downwards. The third side plate 22 and the fourth side plate 23 are flat plates of the same shape and size. The right side surface of the third side plate 22 and the left side surface of the fourth side plate 23 are parallel and aligned. Furthermore, they are aligned in the left and right directions. The lower end faces of the first side plate 12 and the fourth side plate 23 are respectively aligned and fixedly connected to the left and right ends of the upper plate of the second connecting plate 21, forming a U-shaped structure with the opening facing upward. The left plate face of the first side plate 12 is close to the right plate face of the third side plate 22, and the right plate face of the second side plate 13 is close to the left plate face of the fourth side plate 23. There is a gap between the upper end faces of the first connecting plate 11 and the third side plate 22, which is greater than the thickness of the protrusion. There is a gap between the lower end face of the second connecting plate 21 and the first side plate 12, which provides sufficient space for the rotation of the first component 10.

[0092] Specifically, to reduce the space required for the rotation of the first component 10, a first rounded corner 12.1 is provided on both the first side plate 12 and the second side plate 13. The first rounded corner 12.1 connects the second end face and the third end face. The second end face is parallel to the first end face, and the third end face is perpendicular to the first end face and located on the side where the movable groove 12.3 is located. Thus, by designing the arc and radius of the first rounded corner 12.1, the gap between the lower end face of the first side plate 12 and the second connecting plate 21 can be set smaller, ensuring that the second connecting plate 21 does not obstruct the rotation of the first component 10, thereby effectively reducing the space required for the rotation of the first component 10, and consequently reducing the overall space occupied by the folding head. Figure 6 As shown, in this embodiment, the lower left corners of the first side plate 12 and the second side plate 13 are rounded to obtain the first rounded corner 12.1.

[0093] Specifically, for better engagement of the protrusion 32, the first locking position 22.2 is a right-angled first locking position 22.2 formed on the third side plate 22 and the fourth side plate 23; the first locking position 22.2 is located at the end of the second side in the second direction, and the second side is parallel to the first side. Thus, when the protrusion 32 is inserted into the first locking position 22.2 under the thrust of the elastic member 40, the vertical sidewall of the right-angled first locking position 22.2 can limit the protrusion 32, effectively preventing displacement of the protrusion 32 and forming a more secure mechanical engagement. Figure 7 As shown, in this embodiment, the first card slot 22.2 is a right-angled card slot opened on the left end of the upper surface of the third side plate 22 and the fourth side plate 23, and its depth is adapted to the thickness of the protrusion 32.

[0094] Specifically, to lock the first component 10 in its position after rotating 90 degrees from the first compressed state, right-angled second locking positions 22.3 are provided on the third side surfaces of both the third side plate 22 and the fourth side plate 23. These third side surfaces are perpendicular to the first side surfaces and located on the side where the first locking position 22.2 is located. The first locking position 22.2 and the second locking position 22.3 are connected by a second rounded corner 22.1. Thus, when the elastic component 40 moves from the first compressed state to the second compressed state, the protrusion 32 slides out from the first locking position 22.2. After the first component 10 rotates 90 degrees towards the side where the first rounded corner 12.1 is located, the protrusion 32 moves along the third side surfaces of the third side plate 22 and the fourth side plate 23 under the action of the elastic component 40. Furthermore, the right-angled second locking positions 22.3 constrain the protrusion 32 from a direction perpendicular to the third side plate 22, thereby locking the first component 10 in its position after rotating 90 degrees. Figure 7 As shown, in this embodiment, the second card slot 22.3 is located on the upper part of the left end face of the third side plate 22 and the fourth side plate 23, and the left end of the lower surface of the first card slot 22.2 is connected to the upper end of the right surface of the second card slot 22.3 by the second rounded corner 22.1.

[0095] Specifically, to connect the lamp hook, a first connecting hole 11.1 is formed vertically through the surface of the first connecting plate 11; a first connecting bolt 60 is installed in the first connecting hole 11.1; the first connecting bolt 60 is used to connect the lamp hook. Thus, by forming the first connecting hole 11.1 in the first connecting plate 11 and using the first connecting bolt 60, the lamp hook can be connected. In this embodiment, the first connecting plate 11 has a first connecting hole 11.1 on its surface, which is adapted to the first connecting bolt 60, and this hole can be used for bolt connection with the lamp hook.

[0096] Specifically, for connecting the light fixture, a second connecting hole 21.1 penetrating the surface of the second connecting plate 21 is provided; a second connecting bolt 70 is installed in the second connecting hole 21.1; the second connecting bolt 70 is used to connect the light fixture. Thus, by providing the second connecting hole 21.1 in the second connecting plate 21 and using the second connecting bolt 70, the light fixture can be connected. In this embodiment, the second connecting hole 21.1 is provided in the center of the surface of the second connecting plate 21, and this hole is adapted to the second connecting bolt 70 for bolt connection with the light fixture.

[0097] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated further here.

[0098] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different emphases; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0099] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A folding head, characterized in that, include: First component, second component, pressing component, and elastic component; The first component and the second component are hinged together; The first component is provided with a movable groove; The second component is provided with a first locking position; The pressing component includes a push plate and a protrusion, and the push plate and the protrusion are fixedly connected; The elastic component includes a first telescopic end and a second telescopic end. The first telescopic end is connected to the first component, and the second telescopic end is connected to the push plate. The telescopic trajectories of the first telescopic end and the second telescopic end are collinear. When the elastic component is in the first compressed state, the protrusion is inserted into the movable groove and the first locking position; When the elastic component is in the second compression state, the protrusion is located outside the first locking position, and the compression stroke of the second compression state is longer than that of the first compression state.

2. A folding head according to claim 1, characterized in that, Also includes: Assembly bolts; The first component includes a first side plate and a second side plate that are parallel to each other, with the first side plate and the second side plate spaced apart from each other; The direction from the first side plate to the second side plate is the first direction; The extension and retraction direction of the elastic component is the second direction, and the first direction is perpendicular to the second direction; Both the first side plate and the second side plate are provided with the movable groove; The depth direction of the movable groove is perpendicular to the first direction and parallel to the second direction; The second component includes a third side plate and a fourth side plate that are parallel to each other, with the third side plate and the fourth side plate spaced apart from each other; Both the third side plate and the fourth side plate are provided with the first locking slot; When the elastic component is in the first compressed state, the first locking position corresponds to the movable groove of the first side plate; The first side plate and the second side plate are located between the third side plate and the fourth side plate, and the first side plate is parallel to the third side plate; The first side plate, the second side plate, the third side plate, and the fourth side plate are all provided with assembly holes that extend along the first direction and correspond to each other; The assembly bolts pass through the four assembly holes.

3. A folding head according to claim 2, characterized in that: The push plate corresponds to the spacing between the first side plate and the second side plate; The push plate includes a pressing plate and a connecting plate connected at right angles; The surface of the pressing plate is parallel to the first direction and perpendicular to the second direction; The protrusion is fixedly connected to the connecting plate, and the direction of the protrusion is parallel to the first direction; The protrusion is located within the movable groove.

4. A folding head according to claim 3, characterized in that: The pressing plate is provided with a fixing post extending along the first direction on the side facing the assembly bolt; The first telescopic end is connected to the fixed column, and the second telescopic end is connected to the assembly bolt.

5. A folding head according to claim 2, characterized in that: The first component further includes a first connecting plate, the surface of which is fixedly connected to the first end face of the first side plate and the second side plate. The first end face is parallel to the first direction and the second direction and is located outside the gap between the third side plate and the fourth side plate. The second component also includes a second connecting plate, which is fixedly connected to the first side surface of the third side plate and the fourth side plate. In the first compressed state, the first side surface is parallel to the first end face and is located outside the gap between the first side plate and the second side plate.

6. A folding head according to claim 5, characterized in that: Both the first side plate and the second side plate are provided with a first rounded corner. The first rounded corner connects the second end face and the third end face. The second end face is parallel to the first end face, and the third end face is perpendicular to the first end face and located on the side where the movable groove is located.

7. A folding head according to claim 5, characterized in that: The first card slot is a right-angled first card slot formed on the third side plate and the fourth side plate; The first card slot is located at the end of the second side in the second direction, and the second side is parallel to the first side.

8. A folding head according to claim 7, characterized in that: The third side of both the third side plate and the fourth side plate is provided with a right-angled second slot, and the third side is perpendicular to the first side and located on the side where the first slot is located; The first card slot and the second card slot are connected by a second rounded corner.

9. A folding head according to claim 6, characterized in that: The first connecting plate has a first connecting hole that penetrates the plate surface vertically; The first connecting hole is fitted with a first connecting bolt; The first connecting bolt is used to connect the lamp hook.

10. A folding head according to claim 6, characterized in that: The second connecting plate has a second connecting hole that penetrates the plate surface; The second connecting hole is fitted with a second connecting bolt; The second connecting bolt is used to connect the lamp.

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