Lamp post lifting mechanism and lifting lamp

Abstract

The utility model is suitable for the technical field of lamp pole lifting mechanisms, and provides a lamp pole lifting mechanism which comprises a shell, a lamp pole lifting mechanism, a lamp pole lifting mechanism, a lifting mechanism and a lifting mechanism, the top end of the shell is provided with an opening, and an inner space communicated with the opening is formed in the shell; the first rod body can move in the internal space in the length direction of the shell, the first rod body can extend out of the internal space or retract into the internal space, and a first driven structure is arranged on the first rod body; and the mechanical transmission assembly is arranged on the shell and is in transmission fit with the first driven structure, and the mechanical transmission assembly can apply force to the first driven structure to drive the first rod body to extend out of the inner space or retract into the inner space. The utility model further provides a lifting lamp. According to the lamp pole lifting mechanism, the lifting / stretching function is effectively achieved through a relatively simple mechanical transmission structure and a mechanical transmission relation, the achieving cost is low, later maintenance of the mechanical transmission assembly arranged outside the shell is relatively simple, and the application range of the lamp pole lifting mechanism is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamps, and in particular relates to a lamp pole lifting mechanism and a lifting lamp. Background Art

[0002] A lamp is an appliance that can transmit, distribute and change the light distribution of a light source, including the light source, all parts required to fix and protect the light source, and the wiring accessories necessary for connecting to the power supply. Lamps can be divided into fixed lamps and movable lamps according to the installation form.

[0003] With the continuous development of the lighting manufacturing industry, novel, personalized, conveniently decorated, widely used and effective lighting fixtures have become the lighting fixtures that people urgently need for lighting in their daily life activities. At present, in many outdoor lighting systems, it is often necessary to adjust the lighting height of the lighting fixture to meet different lighting needs. Therefore, many types of liftable lighting fixtures have appeared on the market. Liftable lighting fixtures generally mainly include lifting devices and light source components. The lifting device is used to realize the lifting of the light source component to adjust the lighting height of the light source component, thereby meeting the different lighting needs of users.

[0004] In the prior art, liftable lamps mainly use lifting devices such as hydraulic or pneumatic structures to drive the movable rod to move up and down relative to the fixed rod to adjust the height of the light source component, thereby adjusting the height of the lighting. However, the structure of the lifting device is often complex, the implementation cost is high, and the subsequent maintenance is difficult. Utility Model Content

[0005] The utility model provides a lamp pole lifting mechanism, aiming to solve the technical problems of the lamp pole lifting mechanism of the lifting lamp in the prior art being relatively complex in structure and high in realization cost.

[0006] In order to solve the above technical problems, the utility model provides a lamp pole lifting mechanism, comprising:

[0007] A shell, wherein the top of the shell is provided with an opening, and an inner space communicating with the opening is formed in the shell;

[0008] a first rod body movable in the internal space along the length direction of the housing, the first rod body being able to extend from the internal space or be retracted into the internal space, and a first driven structure being disposed on the first rod body; and

[0009] A mechanical transmission component is disposed on the housing and is in transmission cooperation with the first driven structure. The mechanical transmission component can apply force to the first driven structure to drive the first rod to extend from the internal space or to be retracted into the internal space.

[0010] Furthermore, the lamp pole lifting mechanism also includes:

[0011] a second rod body located in the internal space and sleeved with the first rod body, the second rod body being movable in the internal space along the length direction of the shell, and a second driven structure being provided on the second rod body;

[0012] After driving the first rod to extend to the extreme position, the mechanical transmission component separates from the first driven structure and switches to transmission cooperation with the second driven structure. The mechanical transmission component can drive the second rod to extend from the internal space or retract into the internal space.

[0013] Furthermore, the lamp pole lifting mechanism further comprises a transmission switching assembly provided on the second rod body and the mechanical transmission assembly;

[0014] After driving the first rod body to extend to the limit position, the mechanical transmission component is separated from the first driven structure through the transmission switching component, and switches to transmission cooperation with the second driven structure;

[0015] When the mechanical transmission assembly drives the first rod body to retract from the extreme position to the second rod body, the mechanical transmission assembly is separated from the second driven structure through the transmission switching assembly, and switches to transmission cooperation with the first driven structure.

[0016] Furthermore, the transmission switching component includes:

[0017] a switching transition piece provided at the top end of the second rod body, through which the first rod body passes, and which extends along the length direction of the second rod body; and

[0018] A switching auxiliary member provided on the mechanical transmission assembly, the switching auxiliary member comprising a switching auxiliary end, the switching auxiliary end being slidably connected to the switching transition member;

[0019] When the switching transition piece moves with the second rod body, it can slide relative to the switching auxiliary piece and cause the switching auxiliary end to move slightly, so that the switching auxiliary piece drives the mechanical transmission component to separate from the first driven structure and switch to transmission cooperation with the second driven structure, or the switching auxiliary piece drives the mechanical transmission component to separate from the second driven structure and switch to transmission cooperation with the first driven structure.

[0020] Furthermore, starting from the extreme position:

[0021] When the switching transition piece slides relative to the switching auxiliary piece in a direction away from the housing, the switching auxiliary piece is driven to slightly move in a direction away from the side of the switching transition piece, and the mechanical transmission component is driven to separate from the first driven structure and then to cooperate with the second driven structure in transmission;

[0022] When the switching transition piece slides relative to the switching auxiliary piece toward the outer shell, the switching auxiliary piece is driven to move slightly toward the side of the switching transition piece, and the mechanical transmission component is driven to separate from the second driven structure and then cooperate with the first driven structure.

[0023] Furthermore, the switching transition piece includes:

[0024] A main body is arranged on one end of the second rod body close to the opening, the first rod body passes through the main body, and the main body extends along the length direction of the second rod body;

[0025] A slide groove is provided on the side of the main body, and the switching auxiliary member is slidably connected to the slide groove; and

[0026] a third driven structure disposed on the main body and in the same plane as the second driven structure;

[0027] When the mechanical transmission assembly drives the first rod to extend to the extreme position, the switching auxiliary component slides relative to the slide slot, and the mechanical transmission assembly is guided to switch to transmission cooperation with the third driven structure, and then transitions from the third driven structure to transmission cooperation with the second driven structure.

[0028] Furthermore, the chute comprises:

[0029] A first section extending along the length direction of the second rod body and toward the bottom end of the second rod body;

[0030] a second section docking with the second rod body, wherein an extension line of the second section on the main body is located outside the first section; and

[0031] A track-changing section smoothly connects the first section and the second section, and the switching transition piece can slide from the first section to the second section through the track-changing section.

[0032] Furthermore, the second rod body is provided with a guide groove which is on the same side as the slide groove and is connected to the slide groove, and the guide groove is distributed along the length direction of the second rod body;

[0033] When the mechanical transmission component transitions from the third driven structure to the transmission cooperation with the second driven structure, the switching auxiliary member slides from the sliding groove to the guide groove.

[0034] Furthermore, the mechanical transmission assembly also includes:

[0035] A first shell is arranged at the top of the housing, the first rod and the second rod can pass through the first shell, and the switching auxiliary component is arranged in the first shell;

[0036] a first driving member located in the first housing and disposed on the switching auxiliary member; and

[0037] A first transmission member is located in the first housing and is arranged on the switching auxiliary member. The first transmission member is transmission-connected to the first driving member and transmission-coordinated with the first driven structure or the second driven structure.

[0038] Furthermore, the first driving member is a driving gear, and the first transmission member is a driven gear.

[0039] Furthermore, the two opposite inner side walls of the first shell are each provided with a first movable groove, a mounting groove and a second movable groove;

[0040] Two ends of the first driving member are fixed to the switching auxiliary member and embedded in the two mounting grooves;

[0041] Two ends of the first transmission member are fixed to the switching auxiliary member and movably embedded in the two first movable grooves;

[0042] The switching auxiliary component comprises a position adjustment end opposite to the switching auxiliary end, and two sides of the position adjustment end are respectively and movably embedded in two of the second movable grooves.

[0043] Furthermore, the first driven structure is a toothed structure arranged along the length direction of the first rod body, the second driven structure is a toothed structure arranged along the length direction of the second rod body, and the mechanical transmission component is meshed with the first driven structure or the second driven structure.

[0044] Furthermore, the mechanical transmission assembly also includes a resistance member movably disposed in the first housing, and the resistance member can abut against the first transmission member.

[0045] Furthermore, the resistance member is a unidirectional resistance member.

[0046] Furthermore, the mechanical transmission assembly also includes:

[0047] A first drive motor is disposed on the first housing, and the first drive motor is drivingly connected to the first drive member;

[0048] a first control circuit disposed on the first housing and used to rotate and / or short-circuit the first drive motor, the first control circuit being electrically connected to the first drive motor; and

[0049] A first switch is provided on the first housing, the first switch is electrically connected to the first control circuit, and is used to turn on or off the short-circuit state of the first drive motor.

[0050] Furthermore, a locking piece is provided at the top end of the second rod body, and the locking piece passes through the second rod body and has a compressing force toward the inside of the second rod body. When the first rod body is extended to the extreme position, at least part of the locking piece is embedded in the first rod body, locking and connecting the first rod body and the second rod body.

[0051] Furthermore, the mechanical transmission assembly is provided with an opening portion, and when the second rod is retracted to the limit position, the opening portion opens the portion of the locking element embedded in the first rod, thereby releasing the locking connection between the first rod and the second rod.

[0052] Furthermore, the mechanical transmission assembly also includes:

[0053] A second shell provided at the top of the shell;

[0054] a second driving member disposed in the second housing; and

[0055] A second transmission member is located in the second housing and is arranged on the switching auxiliary member. The second transmission member is transmission-connected to the second driving member and transmission-coordinated with the first driven structure or the second driven structure.

[0056] Furthermore, the second driving member is a driving gear, and the second transmission member is a driven gear.

[0057] Furthermore, two opposite inner side walls of the second housing are provided with first movable holes, and the mechanical transmission assembly further comprises a first pressing member located outside the second housing;

[0058] Two ends of the second transmission member respectively pass through the two first movable holes and then emerge from the second housing and can slightly move in the first movable holes toward the rod body;

[0059] One end of the first pressing member is connected to the end of the second transmission member, and the other end is connected to the second shell. The first pressing member applies a pressing force to the second transmission member in the direction of the rod body.

[0060] Furthermore, the two opposite inner side walls of the second shell are provided with second movable holes, and the mechanical drive assembly further comprises a second pressing member located outside the second shell;

[0061] Two ends of the second driving member respectively pass through the two second movable holes and then emerge from the second housing and can slightly move toward the rod body in the second movable holes;

[0062] One end of the second pressing member is connected to the end of the second driving member, and the other end is connected to the second shell. The second pressing member applies a pressing force to the second driving member in the direction of the rod body.

[0063] Furthermore, the mechanical transmission assembly also includes:

[0064] a second drive motor disposed on the second housing, the second drive motor being drivingly connected to the second drive member;

[0065] a second control circuit disposed on the second housing and used to rotate and / or short-circuit the second drive motor, the second control circuit being electrically connected to the second drive motor; and

[0066] A second switch is provided on the second housing, and the second switch is electrically connected to the second control circuit, and is used to turn on or off the short-circuit state of the second drive motor.

[0067] Furthermore, the mechanical transmission assembly also includes a third clamping member located outside the second shell, one end of the third clamping member is connected to the second drive motor, and the other end is connected to the second shell, and the third clamping member applies a clamping force on the second drive motor in the direction of the second drive member.

[0068] Furthermore, the first driven structure is a toothed structure arranged along the length direction of the first rod body, the second driven structure is a toothed structure arranged along the length direction of the second rod body, and the mechanical transmission component is meshed with the first driven structure or the second driven structure.

[0069] Furthermore, the lamp pole lifting mechanism also includes:

[0070] a third rod body located in the internal space and sleeved with the second rod body, the third rod body being movable in the internal space along the length direction of the outer shell, and a fourth driven structure being disposed on the third rod body;

[0071] After driving the second rod to extend to the extreme position, the mechanical transmission component separates from the second driven structure and switches to transmission cooperation with the fourth driven structure. The mechanical transmission component can drive the third rod to extend from the internal space or retract into the internal space.

[0072] Furthermore, the lamp pole lifting mechanism also includes a manual driving component that is detachably arranged and cooperates with the mechanical transmission component for transmission. The mechanical transmission component can be driven by the manual driving component to drive the first rod body to extend from or retract into the second rod body, or to drive the second rod body to extend from or retract into the internal space.

[0073] The utility model also provides a lifting lamp, comprising:

[0074] Lamp holder;

[0075] Base; and

[0076] According to any of the above-mentioned lamp pole lifting mechanisms, one end of the lamp pole lifting mechanism is connected to the lamp holder, and the other end is connected to the base, and the lamp pole lifting mechanism can drive the lamp holder to rise and fall relative to the base.

[0077] In the lamp pole lifting mechanism of the utility model, a first rod body is provided which can be extended from or accommodated in an outer shell, and a first driven structure is provided on the first rod body, and a mechanical transmission component which cooperates with the first driven structure is provided on the outer shell. The mechanical transmission component can apply force to the first driven structure to drive the first rod body to extend from or be retracted into the outer shell, thereby realizing the lifting / telescopic function of the lamp pole lifting mechanism. This scheme adopts a relatively simple mechanical transmission structure and mechanical transmission relationship to effectively realize the lifting / telescopic function, and the implementation cost is relatively low. The later maintenance of the mechanical transmission component arranged outside the outer shell is also relatively simple, which improves the application scope of the lamp pole lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments of the utility model. Obviously, the drawings described below are some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0079] Figure 1 It is a three-dimensional schematic diagram of a lamp pole lifting mechanism provided by an embodiment of the utility model;

[0080] Figure 2 It is another three-dimensional schematic diagram of the lamp pole lifting mechanism provided by one embodiment of the utility model;

[0081] Figure 3 It is another three-dimensional schematic diagram of the lamp pole lifting mechanism provided by one embodiment of the utility model;

[0082] Figure 4 It is a structural schematic diagram of the friction contact of the lamp pole lifting mechanism provided by one embodiment of the utility model;

[0083] Figure 5 It is a structural schematic diagram of a lamp pole lifting mechanism provided by another embodiment of the utility model;

[0084] Figure 6 It is a structural schematic diagram of a lamp pole lifting mechanism provided by another embodiment of the utility model;

[0085] Figure 7 It is a structural schematic diagram of a lamp pole lifting mechanism provided by another embodiment of the utility model;

[0086] Figure 8 This is another structural schematic diagram of a lamp pole lifting mechanism provided by another embodiment of the utility model;

[0087] Fig. 9 It is a three-dimensional schematic diagram of a lamp pole lifting mechanism provided by yet another embodiment of the utility model;

[0088] Fig.10 It is a three-dimensional schematic diagram of the assembly of the switching auxiliary member, the first driving member and the second driving member provided by one embodiment of the utility model;

[0089] Fig.11 It is a structural schematic diagram of a switching transition piece provided by an embodiment of the utility model;

[0090] Fig.12 It is a three-dimensional schematic diagram of a portion of a first shell provided by an embodiment of the utility model;

[0091] Fig.13 It is a structural schematic diagram of a portion of a lamp pole lifting mechanism provided by an embodiment of the utility model;

[0092] Fig.14 It is another structural schematic diagram of a portion of a lamp pole lifting mechanism provided by an embodiment of the utility model;

[0093] Fig.15 It is a three-dimensional schematic diagram of a lamp pole lifting mechanism provided by yet another embodiment of the utility model;

[0094] Fig.16 is a circuit diagram of a first control circuit / a second control circuit provided in an embodiment of the utility model;

[0095] Fig.17 It is a three-dimensional schematic diagram of the assembly of a manual drive member provided by another embodiment of the utility model;

[0096] Fig.18 It is a structural schematic diagram of the lifting lamp provided by the embodiment of the utility model in the raised state;

[0097] Fig.19It is a structural schematic diagram of the retracted and lowered state of the lifting lamp provided by an embodiment of the utility model.

[0098] Description of main reference numerals:

[0099] Light pole lifting mechanism-100; mechanical transmission assembly-10; first shell-11; first movable groove-111; mounting groove-112; second movable groove-113; top opening part-114; first driving member-12; first transmission member-13; resistance member-14; first driving motor-15; second shell-11a; second driving member-12a; second transmission member-13a; first pressing member-14a; second driving motor-16a; third pressing member-17a; first rod body-20; first Driven structure-21; housing-30; second rod body-40; second driven structure-41; locking piece-43; transmission switching assembly-50; switching transition piece-51; main body-511; slide groove-512; first section-5121; track change section-5122; second section-5123; third driven structure-513; switching auxiliary piece-52; switching auxiliary end-521; position adjustment end-522; manual drive piece-60; lamp holder-200; base-300; lifting lamp-1000. DETAILED DESCRIPTION

[0100] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0101] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0102] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In the description of the present utility model, the meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0103] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0104] See also Figure 1 , Figure 4 , Figure 5 and Figure 7 The lamp pole lifting mechanism 100 of the embodiment of the utility model comprises:

[0105] A housing 30, wherein an opening is formed at a top of the housing 30, and an inner space communicating with the opening is formed in the housing 30;

[0106] a first rod 20 that can move in the inner space along the length direction of the housing 30 , the first rod 20 can extend from the inner space or be retracted into the inner space, and a first driven structure 21 is disposed on the first rod 20 ; and

[0107] The mechanical transmission assembly 10 is disposed on the housing 30 and is in transmission cooperation with the first driven structure 21 . The mechanical transmission assembly 10 can apply force to the first driven structure 21 to drive the first rod 20 to extend from the internal space or to be retracted into the internal space.

[0108] In the lamp pole lifting mechanism 100 of the utility model, there is a first rod body 20 that can be extended from the shell 30 or accommodated in the shell 30, and a first driven structure 21 is provided on the first rod body 20, and a mechanical transmission component 10 that cooperates with the first driven structure 21 is provided on the shell 30. The mechanical transmission component 10 can apply force to the first driven structure 21 to drive the first rod body 20 to extend from the shell 30 or be retracted into the shell 30, thereby realizing the lifting / telescopic function of the lamp pole lifting mechanism 100. This solution adopts a relatively simple mechanical transmission structure and mechanical transmission relationship to effectively realize the lifting / telescopic function, and the implementation cost is low. The later maintenance of the mechanical transmission component 10 arranged outside the shell 30 is also relatively simple, which improves the application scope of the lamp pole lifting mechanism 100.

[0109] For example, the lamp pole lifting mechanism 100 can be applied to a lifting lamp 1000, a lifting rod, and other tools that need to be lifted / extended. The top of the lamp pole lifting mechanism 100, that is, the top of the first rod body 20, can be provided with functional components such as a lamp head and a camera to achieve functions such as adjusting the lighting height and driving other mechanisms to lift / extend. In this embodiment, the lamp pole lifting mechanism 100 is applied to a lifting lamp 1000 for specific implementation and example description.

[0110] The outer shell 30 is a hollow structure with an internal space, and its top and bottom may be provided with openings connected to the internal space. The top opening is convenient for extending the first rod body 20, and the bottom opening is convenient for assembling and disassembling the first rod body 20 and installing the lamp pole lifting mechanism 100.

[0111] At the same time, the shape of the housing 30 is adapted to the shape of the first rod 20. For example, the size of the housing 30 may be slightly larger than the size of the first rod 20, so that the housing 30 can also be used to guide the lifting of the first rod 20 and improve the stability of the first rod 20 during lifting. The mechanical transmission assembly 10 is fixed on the housing 30, and does not move with the movement of the first rod 20, but only provides a driving force to drive the first rod 20 to lift.

[0112] In this embodiment, the first driven structure 21 is the part of the first rod 20 that receives the driving force, and can be a structure such as teeth or a rough friction surface disposed on the first rod 20 that can receive the driving force provided by the mechanical transmission assembly 10 .

[0113] Accordingly, the mechanical transmission assembly 10 may include structures such as toothed or rough friction surfaces that cooperate with the first rod body 20, such as driving elements such as gears and friction blocks, to effectively cooperate with the first driven structure 21, and then the movement of the first rod body 20 can be driven by the action of the driving element.

[0114] Taking the first driven structure 21 as a meshing structure as an example, it can be distributed along the length direction of the first rod body 20. The mechanical transmission assembly 10 may include driving elements such as gears that mesh with the first driven structure 21. When the gears in the mechanical transmission assembly 10 rotate under the action of external force, force can be applied to the first driven structure 21 to cause the first rod body 20 to move up and down.

[0115] Exemplarily, if the driving element of the mechanical transmission assembly 10 is a gear, and the first driven structure 20 is a convex tooth structure, when the gear rotates counterclockwise, it continuously applies an upward force to the first driven structure 21, thereby driving the first rod body 20 to move upward. When the gear rotates clockwise, it continuously applies a downward force to the first driven structure 21, thereby driving the first rod body 20 to move downward, thereby realizing the lifting and lowering movement of the first rod body 20.

[0116] The height to which the first rod 20 can be raised and lowered is determined by the drive of the mechanical transmission assembly 10, and can also be determined by the coverage of the first driven structure 21. When the first driven structure 21 is completely distributed in the length direction of the first rod 20, that is, when the first driven structure 21 is distributed from one end to the other end of the first rod 20, the height to which the first rod 20 can be raised and lowered is determined by the drive of the mechanical transmission assembly 10, that is, the user can control the height to which the first rod 20 can be raised and lowered by controlling the mechanical transmission assembly 10, and the first rod 20 can be driven and controlled by the mechanical transmission assembly 10 to be at any extended height.

[0117] The above content about the transmission cooperation between the mechanical transmission assembly 10 and the first rod body 20 is only exemplary and should not be understood as limiting the present invention. The transmission cooperation between the mechanical transmission assembly 10 and the first rod body 20 can also be other, which can be specifically designed in the specific embodiment.

[0118] See also Figure 2 , Figure 3 , Figure 6 and Figure 7 Furthermore, the lamp pole lifting mechanism 100 also includes a second rod body 40 located in the internal space and sleeved with the first rod body 20. The second rod body 40 can move in the internal space along the length direction of the shell 30, and a second driven structure 41 is provided on the second rod body 40.

[0119] After driving the first rod 20 to extend to the extreme position, the mechanical transmission assembly 10 separates from the first driven structure 21 and switches to transmission cooperation with the second driven structure 41. The mechanical transmission assembly 10 can drive the second rod 40 to extend from the internal space or retract into the internal space.

[0120] In order to improve the height that the lamp pole lifting mechanism 100 can be raised and lowered, this embodiment is further provided with a second rod body 40 on the basis of the first rod body 20. The outer diameter of the first rod body 20 is smaller than the inner diameter of the second rod body 40, so that the second rod body 40 can be sleeved on the outside of the first rod body 20 to achieve the connection and relative movement between the first rod body 20 and the second rod body 40, and also make the lifting and moving of the first rod body 20 in the second rod body 40 smoother. The size of the second rod body 40 is adapted to the size of the internal space, which makes the lifting and moving of the second rod body 40 in the outer shell 30 smoother.

[0121] The first rod 20 can rise or fall relative to the second rod 40 along the extension direction of the second rod 40 (i.e., the length direction of the housing 30), that is, the first rod 20 can extend from the second rod 40 or be accommodated in the second rod 40, and the second rod 40 can smoothly guide the lifting and lowering movement of the first rod 20, and the second rod 40 can rise or fall relative to the housing 30 along the length direction of the housing 30, that is, the second rod 40 can extend from the housing 30 or be accommodated in the housing 30, and the housing 30 can smoothly guide the lifting and lowering movement of the second rod 40. Specifically:

[0122] When the lamp pole lifting mechanism 100 is ascending, the mechanical transmission assembly 10 applies an upward force to the first driven structure 21 to gradually ascend the first rod body 20. After the first rod body 20 is completely extended from the second rod body 40 (in the housing 30), that is, after the first rod body 20 is extended to the limit position, the first rod body 20 and the second rod body 40 can be locked and fixed by corresponding structures respectively arranged on the two rod bodies, or the first rod body 20 can be restricted from falling out of the second rod body 40 by a restriction structure.

[0123] Afterwards, the mechanical transmission assembly 10 is separated from the first driven structure 21 and switched to transmission cooperation with the second driven structure 41. After the second driven structure 41 is subjected to the upward driving force provided by the mechanical transmission assembly 10, the second rod body 40 is driven by the mechanical transmission assembly 10 and gradually extends out of the housing 30. At the same time, the second rod body 40 continuously pushes the first rod body 20 upward to raise it, until the second rod body 40 also extends to the above-mentioned limit position, so that the lamp pole lifting mechanism 100 can be raised to a higher height.

[0124] When the second rod 40 is extended to the extreme position and the lamp pole lifting mechanism 100 needs to descend, the mechanical transmission assembly 10 applies a downward force to the second driven structure 41 to drive the second rod 40 to move downward. At this time, the second rod 40 will drive the first rod 20 to move downward at the same time. When the second rod 40 retracts to the initial position, the first rod 20 and the second rod 40 will be unlocked. At the same time, the mechanical transmission assembly 10 separates from the second driven structure 41 and switches to transmission cooperation with the first driven structure 21. The mechanical transmission assembly 10 applies a downward force to the first driven structure 21 to drive the first rod 20 to descend until the first rod 20 is completely accommodated in the second rod 40.

[0125] It is worth noting that the above-mentioned extreme position is the position near the top of the housing 30, which is the position of the bottom end of the first rod body 20 when the first rod body 20 is basically extended from the housing 30. It can be understood as the position of the top end of the first rod body 20 when the first rod body 20 is completely accommodated in the second rod body 40. It can also be understood as the position where the mechanical transmission assembly 10 is separated from the first driven structure 21 and is in transmission cooperation with the second driven structure 41.

[0126] In this embodiment, the limit position is understood to be the position when the first rod body 20 is locked with the second rod body 40 after extending from the second rod body 40 .

[0127] In this embodiment, the second driven structure 41 and the first driven structure 21 are on the same side, or it can be understood that the second driven structure 41 and the first driven structure 21 are on the same straight line, so that the mechanical transmission assembly 10 can seamlessly switch and smoothly connect between the first driven structure 21 and the second driven structure 41.

[0128] The lamp pole lifting mechanism 100 in this embodiment can be composed of at least two rod bodies to form a rod body assembly. It can be a two-section lamp pole lifting mechanism 100 including a first rod body 20 and a second rod body 40, or a rod body assembly including more rod bodies, for example, a multi-section rod body assembly including a third rod body, a fourth rod body, etc.

[0129] It is worth mentioning that if the first driven structure 21 and the second driven structure 41 are both rough friction surface structures, the driving device in the mechanical transmission assembly 10 used for friction cooperation with the first driven structure 21 and the second driven structure 41 can be a structure with elasticity and rough surface such as a rubber wheel. This type of driving device can form a better friction cooperation with the first driven structure 21 and the second driven structure 41, and can be deformed to form a close contact with the first rod body 20 and the second rod body 40, thereby improving the transmission effect.

[0130] In addition, a structure for pressing the first rod 20, the second rod 40 and the mechanical transmission assembly 10 may be provided between the first rod 20, the second rod 40 and the mechanical transmission assembly 10, such as an elastic element such as a tension spring or a spring, to enhance the tightness between the first rod 20, the second rod 40 and the mechanical transmission assembly 10 and promote the lifting effect of the friction transmission of the first rod 20 and the second rod 40.

[0131] See also Figures 1 to 6 Furthermore, in this embodiment, the lamp pole lifting mechanism 100 also includes a transmission switching assembly 50 arranged on the second rod body 40 and the mechanical transmission assembly 10. Since there is a certain step difference / spacing difference between the first rod body 20 and the second rod body 40, the transmission switching assembly 50 is used to realize the smooth and smooth switching of the mechanical transmission assembly 10 between the first rod body 20 and the second rod body 40.

[0132] After driving the first rod body 20 to extend to the extreme position, the mechanical transmission component 10 can be separated from the first driven structure 21 through the transmission switching component 50 and switch to transmission cooperation with the second driven structure 41. For example, when the mechanical transmission component 10 switches from the first rod body 20 to the second rod body 40, the transmission switching component 50 can increase the distance between the mechanical transmission component 10 and the first rod body 20 and shorten the distance with the second rod body 40, thereby separating from the first driven structure 21 and transmitting to the second driven structure 41.

[0133] When the mechanical transmission component 10 drives the first rod body 20 to retract the second rod body 40 from the extreme position, it can be separated from the second driven structure 41 through the transmission switching component 50, and switch to transmission cooperation with the first driven structure 21. For example, when the mechanical transmission component 10 switches from the second rod body 40 to the first rod body 20, the transmission switching component 50 can increase the distance between the mechanical transmission component 10 and the second rod body 40 and shorten the distance with the first rod body 20, thereby separating from the second driven structure 41 and transmitting to the first driven structure 21.

[0134] Among them, the transmission switching component 50 is arranged on the second rod body 40 and the mechanical transmission component 10, which can be understood as a part of the structure of the transmission switching component 50 is arranged on the second rod body 40, and this part of the structure can be used to guide the movement of the mechanical transmission component 10 between the first rod body 20 and the second rod body 40, and the other part of the structure is arranged on the mechanical transmission component 10, and this part of the structure can be used to drive the mechanical transmission component 10 to make corresponding adjustment actions.

[0135] In this way, the switching coordination between the first rod 20 and the second rod 40 of the mechanical transmission assembly 10 is achieved by means of the structure of the two-part transmission switching assembly 50 which is separately arranged on the second rod 40 and the mechanical transmission assembly 10 .

[0136] Please refer to the figure Figure 2 , Figure 3 , Fig.10 and Fig.11 Furthermore, in this embodiment, the transmission switching assembly 50 specifically includes a switching transition piece 51 disposed at the top end of the second rod body 40 and a switching auxiliary piece 52 disposed on the mechanical transmission assembly 10. The first rod body 20 passes through the switching transition piece 51, and the switching transition piece 51 extends along the length direction of the second rod body 40. The switching auxiliary piece 52 includes a switching auxiliary end 521, and the switching auxiliary end 521 is slidably connected to the switching transition piece 51.

[0137] Among them, when the switching transition piece 51 moves with the second rod body 40, it can slide relative to the switching auxiliary piece 52 and make the switching auxiliary end 521 move slightly, so that the switching auxiliary piece 52 drives the mechanical transmission component 10 to separate from the first driven structure 21 and switch to transmission cooperation with the second driven structure 41, or the switching auxiliary piece 52 drives the mechanical transmission component 10 to separate from the second driven structure 41 and switch to transmission cooperation with the first driven structure 21.

[0138] Specifically, the switching transition piece 51 is fixed to the top end of the second rod body 40 and is arranged along the extension direction of the second rod body 40. It can be extended from the shell 30 or retracted into the shell 30 along with the second rod body 40, and the size of the switching transition piece 51 matches the size of the second rod body 40, or the sizes of the two are equal to ensure the consistency of the appearance and the compactness of the second rod body 40 in the shell 30, which can reduce the entry of impurities into the internal space to cause dirt or even jamming.

[0139] In addition, the switching transition piece 51 is a hollow structure, so that the first rod body 20 can pass through the switching transition piece 51 and rise and fall relative to the second rod body 40, and the switching transition piece 51 can avoid the structure in the mechanical transmission component 10 for driving the first rod body 20 (such as the gear mentioned above). For example, an opening can be opened on the side of the switching transition piece 51 facing the mechanical transmission component 10, so that the mechanical transmission component 10 (the gear therein) can pass through the opening to be transmission-connected with the first rod body 20.

[0140] The switching auxiliary member 52 is disposed in the mechanical transmission assembly 10 to assist the mechanical transmission assembly 10 in switching between the first driven structure 21 and the second driven structure 41. Specifically, within a certain range of the extreme position, when the switching transition member 51 rises and falls with the second rod body 40, the switching auxiliary member 52 will make a corresponding action, for example:

[0141] When the switching transition member 51 starts to rise with the second rod body 40 at the limit position, the switching auxiliary member 52 will move toward the side away from the second rod body 40, which can drive the mechanical transmission component 10 to move outward (i.e., outside) a little distance, thereby increasing the distance from the first rod body 20 and shortening the distance from the second rod body 40, thereby realizing the switching of the mechanical transmission component 10 from the first driven structure 21 to the second driven structure 41;

[0142] As the switching transition piece 51 moves along with the second rod body 40 to the extreme position, the switching auxiliary piece 52 will move toward the side close to the second rod body 40, which can drive the mechanical transmission component 10 to move a little inward (i.e., inside), thereby increasing the distance from the second rod body 40 and shortening the distance from the first rod body 20, thereby realizing the switching of the mechanical transmission component 10 from the second driven structure 41 to the first driven structure 21.

[0143] Furthermore, in this embodiment, starting from the extreme position:

[0144] When the switching transition piece 51 slides with the second rod body 40 relative to the switching auxiliary piece 52 in a direction away from the housing 30, the switching auxiliary piece 52 is driven to slightly move in a direction away from the side of the switching transition piece 51, and the mechanical transmission component 10 is driven by the switching auxiliary end 521 of the switching auxiliary piece 52 to slightly move in a direction away from the side of the switching transition piece 51, so that the mechanical transmission component 10 is separated from the first driven structure 21 and then cooperates with the second driven structure 41 in transmission, thereby driving the second rod body 40 to rise and fall;

[0145] When the switching transition piece 51 slides along with the second rod body 40 relative to the switching auxiliary piece 52 toward the direction close to the outer shell 30, the switching auxiliary piece 52 is driven to move slightly toward the side of the switching transition piece 51, and the mechanical transmission component 10 is driven by the switching auxiliary end 521 of the switching auxiliary piece 52 to move slightly toward the side of the switching transition piece 51, so that the mechanical transmission component 10 is separated from the second driven structure 41 and then cooperates with the first driven structure 21 to drive the first rod body 20 to rise and fall.

[0146] See also Figure 5 , Figure 6 and Fig.11 , further, the switching transition piece 51 comprises:

[0147] A main body 511 is disposed on one end of the second rod body 40 close to the opening, the first rod body 20 passes through the main body 511, and the main body 511 extends along the length direction of the second rod body 40;

[0148] A slide groove 512 is provided on the side of the main body 511, and the switching auxiliary member 52 is slidably connected to the slide groove 512; and

[0149] The third driven structure 513 is arranged on the main body 511 and is in the same plane as the second driven structure 41. When the mechanical transmission component 10 drives the first rod body 20 to extend to the extreme position, the switching auxiliary component 52 slides relative to the slide groove 512, and the mechanical transmission component 10 is guided to switch to transmission cooperation with the third driven structure 513, and then transitions from the third driven structure 513 to the second driven structure 41.

[0150] Specifically, the main body 511 is fixed to the top end of the second rod body 40 and is arranged along the extension direction of the second rod body 40. It can be extended from the shell 30 or retracted into the shell 30 along with the second rod body 40, and the size of the main body 511 matches the size of the second rod body 40, or the sizes of the two are equal to ensure the consistency of the appearance and the compactness of the second rod body 40 in the shell 30, which can reduce the entry of impurities into the internal space to cause dirt or even jamming.

[0151] In addition, the main body 511 is a hollow structure, so that the first rod body 20 can pass through the main body 511 and rise and fall relative to the second rod body 40, and the main body 511 has an opening on one side facing the mechanical transmission component 10, so that the mechanical transmission component 10 (the gear therein) can pass through the opening to be transmission-connected with the first rod body 20.

[0152] In this embodiment, the movement of the switching auxiliary component 52 is assisted and guided by the sliding connection between the slide groove 512 provided on the side of the main body 511 and the switching auxiliary component 52, that is, the switching auxiliary component 52 is driven to move closer to or away from the main body 511 through sliding between the slide groove 512 and the switching auxiliary component, so that the switching auxiliary component 52 drives the mechanical transmission component 10 to move closer to or away from the second rod body 40, and switches between the first driven structure 21 and the second driven structure 41.

[0153] Furthermore, opposite slide grooves 512 are provided on both side surfaces of the main body 511, and the switching auxiliary component 52 includes two switching auxiliary ends 521, which can be convex column structures. The two switching auxiliary ends 521 can be slidably arranged in the corresponding slide grooves 512 respectively, so that the switching transition component 51 can assist the switching of the switching auxiliary component 52 more smoothly.

[0154] In order to avoid jamming of the mechanical transmission component 10 when switching between the first driven structure 21 and the second driven structure 41, a third driven structure 513 is provided on the main body 511 and is in the same plane as the second driven structure 41. When the mechanical transmission component 10 separates from the first driven structure 21 and switches to the second driven structure 41, it first transitions to the third driven structure 513 and cooperates with the third driven structure 513 for transmission. Since the main body 511 and the second rod body 40 are fixed together, the mechanical transmission component 10 can also drive the second rod body 40 to move when applying force to the third driven structure 513. After separating from the third driven structure 513, it transitions to the second driven structure 41 and directly drives the second rod body 40 to move through the second driven structure 41.

[0155] The process of the mechanical transmission assembly 10 separating from the second driven structure 41 and transitioning to the third driven structure 513 and then switching to the first driven structure 21 can refer to the above process and will not be described in detail here.

[0156] See also Figure 5 , Figure 6 and Fig.11Furthermore, the slide groove 512 in this embodiment includes a first section 5121 extending along the length direction of the second rod body 40 and toward the bottom end of the second rod body 40, a second section 5123 docking with the second rod body 40, and a track-changing section 5122 smoothly connecting the first section 5121 and the second section 5123. The extension line of the second section 5123 on the main body 511 is located outside the first section 5121. The switching transition piece 51 can slide from the first section 5121 to the second section 5123 through the track-changing section 5122.

[0157] In this embodiment, the transmission auxiliary member can slide between the first section 5121 and the second section 5123 through the track change section 5122, so that the mechanical transmission assembly 10 switches between the first rod body 20 and the second rod body 40. Figure 1 In the embodiment, the switching auxiliary member 52 is located in the first section 5121 of the slide slot 512. Figure 4 In the embodiment, the switching auxiliary member 52 is located in the second section 5123 of the slide slot 512. Specifically:

[0158] The first section 5121 is adapted to the position of the first rod body 20. When the switching auxiliary component 52 (the switching auxiliary end 521) is still on the first section 5121, the mechanical transmission assembly 10 is in transmission cooperation with the first driven structure 21; the positions of the two ends of the track changing section 5122 are respectively adapted to the positions of the first rod body 20 and the second rod body 40, which are used to smoothly guide the switching auxiliary component 52 from the first rod body 20 part to the second rod body 40 part, or to smoothly guide the first rod body 20 part from the second rod body 40 part. When the switching auxiliary component 52 slides from the first section 5121 to the track changing section 5122, the mechanical transmission assembly 10 switches from the first driven structure 21 to the third driven structure 513 for transmission cooperation; the second section 5123 is adapted to the position of the second rod body 40. When the switching auxiliary component 52 slides from the track changing section 5122 to the second section 5123, the mechanical transmission assembly 10 is in transmission cooperation with the second driven structure 41.

[0159] When the switching auxiliary end 521 of the switching auxiliary component 52 slides from the first section 5121 to the track change section 5122 and then to the second section 5123, the mechanical transmission component 10 moves from the transmission cooperation with the first driven structure 21 to the transmission cooperation with the third driven structure 513, and then moves to the transmission cooperation with the second driven structure 41. That is, the mechanical transmission component 10 moves from the transmission connection with the first rod body 20 to the transmission connection with the switching transition component 51, and then moves to the transmission connection with the second rod body 40.

[0160] When the switching auxiliary end 521 of the switching auxiliary component 52 moves from the second section 5123 to the track change section 5122 and then slides to the first section 5121, the mechanical transmission component 10 moves from the transmission cooperation with the second driven structure 41 to the transmission cooperation with the third driven structure 513, and then moves to the transmission cooperation with the first driven structure 21, that is, the mechanical transmission component 10 moves from the transmission connection with the second rod body 40 to the transmission connection with the switching transition component 51, and then moves to the transmission connection with the first rod body 20.

[0161] In this embodiment, because the diameters / sizes of the first rod body 20 and the second rod body 40 are different, the switching auxiliary component 52 can be moved from the first section 5121 to the second section 5123 through the track changing section 5122. Correspondingly, the switching auxiliary component 52 can also be moved from the second section 5123 to the first section 5121 through the track changing section 5122, so as to realize the change of the mechanical transmission component 10 from driving the first rod body 20 to driving the second rod body 40, thereby realizing the transition of the mechanical transmission component 10 between rod bodies of different diameters, so that the mechanical transmission component 10 can drive the lifting and lowering of rod bodies of different diameters.

[0162] In one embodiment, the slide groove 512 can be a shape and size that matches the switching auxiliary end 521, so that when the switching auxiliary end 521 slides in the slide groove 512, the switching auxiliary end 521 can be prevented from moving or shaking in the vertical direction as much as possible, thereby ensuring stability during switching.

[0163] Furthermore, a guide groove is provided on the second rod body 40, which is on the same side as the slide groove 512 and is connected to the slide groove 512. The guide groove is distributed along the length direction of the second rod body 40. When the mechanical transmission assembly 10 transitions from the third driven structure 513 to the transmission cooperation with the second driven structure 41, the switching auxiliary component 52 slides from the slide groove 512 to the guide groove.

[0164] When the mechanical transmission assembly 10 continuously drives the second rod body 40 so that the switching transition piece 51 rises relative to the switching auxiliary piece 52, the second section 5123 in the slide groove 512 also rises relative to the switching auxiliary piece 52. To ensure that the switching auxiliary end 521 does not hinder the rise of the second rod body 40, this embodiment provides a guide groove 42 connected to the second section 5123 in the length direction of the second rod body 40 for guiding the relative movement between the switching auxiliary piece 52 and the second rod body 40.

[0165] Moreover, when the lamp pole lifting mechanism 100 is provided with more rod bodies, such as a third rod body that is sleeved with the second rod body 40, the top of the third rod body also needs to be provided with a switching transition piece 51 to enable the mechanical transmission assembly 10 to switch from the second rod body 40 to the third rod body. At this time, the guide groove 42 on the second rod body 40 needs to be connected to the slide groove 512 of the switching transition piece 51 on the third rod body, so that the mechanical transmission assembly 10 separated from the second rod body 40 can be switched to the third rod body.

[0166] Furthermore, a guide groove is also provided on the third rod body, which can not only guide the relative movement of the switching auxiliary component 52 and the third rod body, but also be used for the lamp pole lifting mechanism 100 of the possible fourth rod body. The content of the possible fourth rod body can refer to the content of the third rod body and the second rod body 40 above, and will not be repeated here.

[0167] It is worth mentioning that when the rod body assembly includes a third rod body, a fourth rod body and more rod bodies, a switching transition piece 51 is provided on the top of each rod body to realize the transition switching between each rod body, and the transmission switching assembly 50 is only provided with one switching auxiliary piece 52 and only one mechanical transmission assembly 10.

[0168] Please refer to the figure Figure 2 and Fig.12 Furthermore, the mechanical transmission assembly 10 further includes:

[0169] A first housing 11 is disposed at the top of the housing 30 , the first rod 20 and the second rod 40 can pass through the first housing 11 , and the switching auxiliary member 52 is disposed in the first housing 11 ;

[0170] A first driving member 12 located in the first housing 11 and disposed on the switching auxiliary member 52; and

[0171] The first transmission member 13 is located in the first housing 11 and is disposed on the switching auxiliary member 52 . The first transmission member 13 is transmission-connected to the first driving member 12 and is transmission-coordinated with the first driven structure 21 or the second driven structure 41 .

[0172] Specifically, the first shell 11 is fixed to the top of the housing 30 to accommodate the first driving member 12 and the first transmission member 13 and protect the first driving member 12 and the first transmission member 13 from being directly exposed to the outside, thereby improving safety.

[0173] Among them, the first driving member 12 and the first transmission member 13 are arranged in the first shell 11 through the switching auxiliary member 52. When the switching auxiliary member 52 and the switching transition member 51 move relative to each other and cause the switching auxiliary member 52 to move slightly, it can drive the first driving member 12 and the first transmission member 13 to move slightly in the first shell 11 and maintain the transmission connection relationship between the first transmission member 13 and the first driving member 12.

[0174] The micro-movement of the switching auxiliary member 52 can separate the first transmission member 13 from the first driven structure 21 and cooperate with the third driven structure 513 or the second driven structure 41, or separate the first transmission member 13 from the third driven structure 513 or the second driven structure 41 and cooperate with the first driven structure 21.

[0175] In one embodiment, the first driving member 12 can be at least partially exposed from the first shell 11 to be connected to an external driving source (such as a driving motor / manual driving rod, etc.), or the driving source can extend into the first shell 11 to cooperate with the first driving member 12, and the first driving member 12 is driven by the driving source to move, and the first driving member 12 drives the first transmission member 13 to move, and the first transmission member 13 then drives the first rod body 20 or the second rod body 40 to rise and fall, thereby driving the lamp pole lifting mechanism 100 to rise and fall mechanically.

[0176] Furthermore, the first driving member 12 is a driving gear, and the first transmission member 13 is a driven gear.

[0177] Specifically, the first driving member 12 is a power output wheel, which is used to receive the input of external driving force and transmit the first transmission member 13 to perform actions at the same time. The first transmission member 13 can engage and disengage with the first rod body 20 (first driven structure 21) / the second rod body 40 (the second driven structure 41) / the switching transition member 51 (the third driven structure 513), thereby driving the first rod body 20 / the second rod body 40 to rise and fall.

[0178] It is worth mentioning that if the first driven structure 21 and the second driven structure 41 are both rough friction surface structures, the above-mentioned first transmission member 13 can be a structure with elasticity and rough surface such as a rubber wheel, and the first driving member 12 is a structure that drives the first transmission member 13 to rotate. This first transmission member 13 can form a better friction fit with the first driven structure 21 and the second driven structure 41, and can be deformed to form a close contact with the first rod body 20 and the second rod body 40, thereby improving the transmission effect.

[0179] See also Figure 2 , Fig.10 and Fig.12 Furthermore, two opposite inner side walls of the first housing 11 are provided with a first movable groove 111, a mounting groove 112 and a second movable groove 113;

[0180] Both ends of the first driving member 12 are fixed to the switching auxiliary member 52 and embedded in the two mounting grooves 112;

[0181] Both ends of the first transmission member 13 are fixed to the switching auxiliary member 52 and movably embedded in the two first movable grooves 111;

[0182] The switching auxiliary member 52 includes a position adjustment end 522 opposite to the switching auxiliary end 521 , and two sides of the position adjustment end 522 are respectively movably embedded in the two second movable grooves 113 .

[0183] In order to ensure that the switching auxiliary member 52 can drive the first transmission member 13 and the first driving member 12 to move slightly in the first shell 11 to adjust the transmission matching relationship between the first driving member 12 and the first rod body 20, the switching transition member 51 and the second rod body 40, the present embodiment is provided with a first movable groove 111, an installation groove 112 and a second movable groove 113 on the inner side wall of the first shell 11, and the first movable groove 111, the installation groove 112 and the second movable groove 113 can be formed by the side wall of the first shell 11 protruding outward.

[0184] Among them, since the first driving member 12 is between the first transmission member 13 and the position adjustment end 522, the installation groove 112 is set to limit the position of the first driving member 12, and the first movable groove 111 is set to enable the first transmission member 13 to move slightly within a certain range. The second movable groove 113 is set to set the position adjustment end 522, so that the switching auxiliary member 52 can move slightly, thereby driving the first transmission member 13 to move slightly. The linkage between the first transmission member 13 and the switching auxiliary member 52 is similar to the lever adjustment, and the first driving member 12 is the central axis structure of the lever, which undertakes the adjustment changes at both ends.

[0185] Furthermore, a brush is provided on the outlet of the first shell 11 through which the first rod 20 and the second rod 40 pass. The brush can directly block external impurities from entering the first shell 11 and the outer shell 30, and clean the surface of the first rod 20 and the second rod 40, preventing the first rod 20 and the second rod 40 from carrying impurities into the first shell 11 and the outer shell 30, so as to avoid problems such as corrosion and jamming.

[0186] Furthermore, the first driven structure 21 is a toothed structure arranged along the length direction of the first rod body 20, and the second driven structure 41 is a toothed structure arranged along the length direction of the second rod body 40. The mechanical transmission assembly 10 is meshed with the first driven structure 21 or the second driven structure 41.

[0187] That is to say, in this embodiment, transmission coordination is achieved through the toothed first driven structure 21 and the second driven structure 41 and the mechanical transmission assembly 10. The first driving member 12 and the first transmission member 13 in the mechanical transmission assembly 10 are both gear structures, which can stably transmit the driving force to the first driven structure 21, the second driven structure 41 or the third driven structure 513 through gear meshing transmission, thereby realizing stable driving and lifting of the first rod body 20 and the second rod body 40.

[0188] See also Figures 5 to 8Furthermore, the mechanical transmission assembly 10 also includes a resistance member 14 movably disposed in the first housing 11 , and the resistance member 14 can abut against the first transmission member 13 .

[0189] In this embodiment, the resistance member 14 may be a resistance gear. The resistance member 14 is mainly configured to apply resistance to the first transmission member 13 when the rod body descends, thereby applying a resistance to the rod body to slow down the descent.

[0190] When the lamp pole lifting mechanism 100 loses power or the connected power source is exhausted, it is necessary to manually lower the extended pole body. However, at this time, the load on the pole body due to loading other components may be too heavy, causing the pole body to fall quickly and cause danger or damage to the product. By setting the resistance member 14 to abut against the first transmission member 13 and applying resistance to the first transmission member 13, the falling speed of the pole body can be slowed down or the pole body can be directly stuck, thereby improving the safety of the lamp pole lifting mechanism 100 when in use.

[0191] Furthermore, in this embodiment, the resistance member 14 may be a one-way resistance member 14 , which further enhances the damping effect on the first transmission member 13 and improves the safety of the lamp pole lifting mechanism 100 .

[0192] See also Figure 2 and Fig.15 Furthermore, the mechanical transmission assembly 10 further includes:

[0193] A first drive motor 15 is disposed on the first housing 11 and is transmission-connected to the first drive member 12;

[0194] A first control circuit provided on the first housing 11 for rotating and / or short-circuiting the first drive motor 15, the first control circuit being electrically connected to the first drive motor 15; and

[0195] The first switch is disposed on the first housing 11 and is electrically connected to the first control circuit, and is used to turn on or off the short-circuit state of the first driving motor 15 .

[0196] Specifically, the first drive motor 15 can be arranged inside the first shell 11 or outside the first shell 11. Preferably, the first drive motor 15 is arranged outside the first shell 11, and the drive shaft of the first drive motor 15 extends into the first shell 11 and is transmission-connected with the first drive member 12, which is convenient for assembly and disassembly of the first drive motor 15 and also convenient for replacing the first drive motor 15 with different power.

[0197] The first control circuit also includes a second switch, such as Fig.11As shown, when the first drive motor 15 is powered on and working normally, the first switch provided on the first housing 11 is in a connected state, and the second switch is generally in a disconnected state. When there is a power outage or the power is exhausted, the first switch and the second switch are both in a connected state, and the first drive motor 15 is short-circuited at this time. Whether the first drive motor 15 is short-circuited can be controlled by adjusting the state of the first switch. For example, when the first switch is disconnected, the short-circuited state of the first drive motor 15 is released; when the first switch is connected again, the first drive motor 15 is in a short-circuited state again.

[0198] Considering that some motors (such as planetary gear motors) do not have a self-locking function, when the positive and negative short circuits of the motors are greatly increased, the stall torque of the motors reaches a certain self-locking ability. Whether it can be self-locking at this time depends on the size of the load being lifted. When the load is too large and the positive and negative short circuits of the motors cannot achieve the self-locking function, a one-way resistance gear (i.e., the resistance member 14 mentioned above) or a motor with a larger torque specification can be selected to achieve the self-locking function. In addition, the first drive motor 15 is set to a state of positive and negative short circuits under normal conditions through the first control circuit, and the positive and negative are disconnected during operation.

[0199] In this way, when the lamp pole lifting mechanism 100 is in a power outage or the power is exhausted, the first drive motor 15 is in a positive and negative short-circuited state. When the lamp pole lifting mechanism 100 is powered off and needs to be manually retracted, the positive and negative lines of the short-circuited first drive motor 15 are disconnected through the set mechanical switch, i.e., the first switch, so that the first drive motor 15 has no self-locking function, and the pole body can be manually retracted, that is, the lamp pole lifting mechanism 100 can be manually retracted.

[0200] See also Figure 2 , Figure 3 , Fig.13 and Fig.14 Furthermore, a locking piece 43 is provided at the top of the second rod 40, and the locking piece 43 passes through the second rod 40 and has a force to compress the inside of the second rod 40. When the first rod 20 is extended to the limit position, at least part of the locking piece 43 is embedded in the first rod 20, locking and connecting the first rod 20 and the second rod 40. In addition, a push-up portion 114 is provided on the mechanical transmission assembly 10 (specifically, the inner wall of the first housing 11). When the second rod 40 is retracted to the limit position, the push-up portion 114 pushes open the part of the locking piece 43 embedded in the first rod 20, releasing the locking connection between the first rod 20 and the second rod 40.

[0201] In this embodiment, a locking piece 43 and a top opening portion 114 are corresponding to the socket joint between the second rod body 40 and the first rod body 20. The locking piece 43 includes a base, an elastic element and a locking block. The base is located on the second rod body 40, and the base includes a mounting shaft facing the second rod body 40. The elastic element is sleeved on the mounting shaft, and the locking block is slidably disposed at the end of the mounting shaft. The elastic element and the mounting shaft pass through the transmission transition piece 51 together. One end of the elastic element abuts against the base, and the other end abuts against the locking block to generate an elastic force on the locking block toward the second rod body 40, thereby making the locking piece 43 have a clamping force toward the inner side of the second rod body 40.

[0202] When the first rod 20 is still in the second rod 40, the other side of the locking block facing away from the elastic element contacts the first rod 20, and a fixing hole adapted to the locking block is provided at the end of the first rod 20. Therefore, when the first rod 20 rises to a certain position, the locking block can slide into the fixing hole along the surface of the first rod, so that the first rod 20 is locked and connected with the second rod 40. Specifically:

[0203] When the first rod 20 has not risen to the limit position, the end of the locking piece 43 (i.e., the locking block mentioned above) contacts the surface of the first rod 20. When the first rod 20 rises to the limit position, since the first rod 20 is inside the second rod 40, the end of the locking piece 43 will pop into the fixing hole of the first rod 20, so that the first rod 20 and the second rod 40 are locked and connected, and the second rod 40 can drive the first rod 20 to rise and fall at the same time.

[0204] When the second rod 40 descends to the limit position, the push-up portion 114 provided on the inner wall of the first shell 11 contacts the locking piece 43, is inserted between the locking piece 43 and the fixing hole of the first rod 20, and pushes the locking piece 43 away from the first rod 20, thereby releasing the locked connection state between the first rod 20 and the second rod 40, so that the first rod 20 can be received back into the second rod 40.

[0205] Specifically, one end of the push-up portion 114 close to the locking piece 43 can be wedge-shaped. When the first rod body 20 drops to the extreme position, the push-up portion 114 is easily inserted into the connection between the locking piece 43 and the first rod body 20. When the first rod body 20 continues to drop, the push-up portion 114 pushes the locking piece 43 away from the first rod body 20, thereby releasing the locked connection state between the first rod body 20 and the second rod body 40.

[0206] The utility model provides a combination of a mechanical transmission component 10 and a transmission switching component 50 to realize the technical solution of switching the mechanical transmission component 10 between the first rod body 20 and the second rod body 40, and further provides the following Figures 7 to 9 Another technical solution is shown in which the mechanical transmission assembly 10 can be switched between the first rod body 20 and the second rod body 40 without the need for the transmission switching assembly 50 .

[0207] Another technical solution provided by the present invention, in addition to not including the transmission switching assembly 50, may also include a resistance member 14, a locking member 43, a top opening portion 114 and a toothed first driven structure 21 / second driven structure 41 / third driven structure 513 and other technical features, which are not elaborated here.

[0208] See also Figures 7 to 9 and Fig.17 Furthermore, the mechanical transmission assembly 10 also includes a second shell 11a arranged at the top of the shell 30, a second driving member 12a arranged in the second shell 11a, and a second transmission member 13a located in the second shell 11a and arranged on the switching auxiliary member 52. The second transmission member 13a is transmission-connected to the second driving member 12a and is transmission-coordinated with the first driven structure 21 or the second driven structure 41.

[0209] Specifically, the second shell 11a is fixed to the top of the housing 30 to accommodate the second driving member 12a and the second transmission member 13a and protect the second driving member 12a and the second transmission member 13a from being directly exposed to the outside, thereby improving safety.

[0210] In addition, the second driving member 12a and the second transmission member 13a can move slightly in the second shell 11a. For example, the ends of the second driving member 12a and the second transmission member 13a can extend from the second shell 11a and can move within a certain range. When it is necessary to switch the second transmission member 13a between the first driven structure 21 and the second driven structure 41, the ends of the second transmission member 13a and / or the second driving member 12a can be pushed, so that the second transmission member 13a and / or the second driving member 12a can adapt to the step difference between the first rod body 20 and the second rod body 40, that is, adapt to rod bodies of different sizes.

[0211] In one embodiment, the second driving member 12a can be at least partially exposed from the second shell body 11a to be connected to an external driving source (such as a motor / manual driving rod, etc.), or the driving source extends into the second shell body 11a to cooperate with the second driving member 12a, and the second driving member 12a is driven by the driving source to move, and the second driving member 12a drives the second transmission member 13a to move, and the second transmission member 13a then drives the first rod body or the second rod body 40 to rise and fall.

[0212] Furthermore, the second driving member 12a is a driving gear, and the second transmission member 13a is a driven gear.

[0213] Specifically, the second driving member 12a is a power output wheel, which is used to receive the input of external driving force and transmit the second transmission member 13a to perform actions at the same time. The second transmission member 13a can engage and disengage with the first rod body 20 (first driven structure 21) / the second rod body 40 (the second driven structure 41) / the switching transition member 51 (the third driven structure 513), thereby driving the first rod body 20 / the second rod body 40 to rise and fall.

[0214] See also Figures 7 to 9 and Fig.17 Furthermore, first movable holes are provided on two opposite inner side walls of the second housing 11a, and the mechanical transmission assembly 10 further includes a first pressing member 14a located outside the second housing 11a. The two ends of the second transmission member 13a respectively pass through the two first movable holes and then emerge from the second housing 11a and can slightly move in the first movable holes toward the rod body. One end of the first pressing member 14a is connected to the end of the second transmission member 13a, and the other end is connected to the second housing 11a, and the first pressing member 14a applies a pressing force toward the rod body to the second transmission member 13a.

[0215] Specifically, the first pressing member 14a may be an elastic element, and the surface of the second housing 11a may be provided with a structure such as a protrusion to facilitate the sleeve fixing of one end of the first pressing member 14a. After the first pressing member 14a is assembled on the second housing 11a, that is, one end of the first pressing member 14a is connected to the second housing 11a, and the other end is connected to the second transmission member 13a, the first pressing member 14a is in a stretched state, thereby applying a pressing force in the direction of the rod body to the second transmission member 13a, that is, the second transmission member 13a has a pressing force in the direction of the first rod body 20 / the second rod body 40. When the second transmission member 13a switches from the transmission cooperation with the first rod body 20 to the transmission cooperation with the second rod body 40, it will smoothly transition to the second rod body 40 under the action of the pressing force, ensuring a tight and stable cooperation with the second driven structure 41.

[0216] That is to say, when the mechanical transmission component 10 (i.e., the second transmission component 13a) drives rods of different diameters to rise and fall, the external force provided by the deformation of the first clamping component 14a is used to achieve the transition of the mechanical transmission component 10 between rods of different diameters, so that the mechanical transmission component 10 can drive rods of different diameters to rise and fall.

[0217] When the light pole lifting mechanism 100 is powered by a power supply, if the power is exhausted or a power outage occurs after the light pole lifting mechanism 100 is raised, the pole body needs to be lowered manually. After the power outage, many motors have a self-locking function, that is, the second drive member 12a will automatically get stuck and cannot move.

[0218] Therefore, in this embodiment, the second driving member 12a and the second transmission member 13a can be separated by disassembling the first clamping member 14a to release the abutment state between the second driving member 12a and the second transmission member 13a. The user can manually control the second transmission member 13a to lower the rod body to adapt to emergencies.

[0219] In addition, in this embodiment, the second driving member 12a and the second transmission member 13a are designed to be deeply engaged. When the second transmission member 13a switches to the second rod body 40, although the second transmission member 13a moves a certain distance toward the rod body, it is still engaged with the second driving member 12a. Therefore, only one set of first clamping members 14a is provided to act evenly on the second transmission member 13a, which can ensure that the second transmission member 13a can switch to effectively cooperate with the rod body.

[0220] The first pressing member 14a may be a spring or other elastic element that can be applied to the present embodiment and can achieve the same or similar functions, and no specific limitation is made herein.

[0221] Furthermore, second movable holes are provided on two opposite inner side walls of the second housing 11a, and the mechanical drive assembly further comprises a second pressing member located outside the second housing 11a. The two ends of the second driving member 12a respectively pass through the two second movable holes and then emerge from the second housing 11a and can slightly move in the second movable holes toward the rod body. One end of the second pressing member is connected to the end of the second driving member 12a, and the other end is connected to the second housing 11a, and the second pressing member applies a pressing force toward the rod body to the second driving member 12a.

[0222] In order to ensure the meshing effect between the second driving member 12a and the second transmission member 13a, this embodiment adds a group of second clamping members on the second shell 11a to act on the second driving member 12a to control the second driving member 12a to be pressed toward the rod body, that is, pressed with the second transmission member 13a, thereby ensuring the meshing effect with the second transmission member 13a.

[0223] Specifically, the second clamping member can be an elastic element like the first clamping member 14a. The surface of the second shell 11a can be provided with a protrusion or other structure that facilitates the socketing and fixing of one end of the second clamping member. After the second clamping member is assembled on the second shell 11a, that is, one end of the second clamping member is connected to the second shell 11a, and the other end is connected to the second driving member 12a, the second clamping member is in a stretched state, thereby applying a clamping force to the second driving member 12a in the direction of the rod body, that is, the second driving member 12a has a clamping force in the direction of the first rod body 20 / second rod body 40.

[0224] When the second transmission member 13a switches from transmission cooperation with the first rod body 20 to transmission cooperation with the second rod body 40, it will smoothly transition to the second rod body 40 under the action of the clamping force provided by the first clamping member 14a. At the same time, the second driving member 12a will also maintain a stable transmission connection with the second transmission member 13a under the action of the clamping force provided by the second clamping member.

[0225] The second pressing member may be a spring or other elastic element that can be applied to the present embodiment and can achieve the same or similar functions. The second pressing member may be the same as or different from the first pressing member 14a, and no specific limitation is made here.

[0226] See also Figures 7 to 9 and Fig.17 Furthermore, in the present embodiment, the mechanical transmission assembly 10 further includes a second drive motor 16a disposed on the second housing 11a, a second control circuit disposed on the second housing 11a for rotating and / or short-circuiting the second drive motor 16a, and a second switch disposed on the second housing 11a, the second drive motor 16a is transmission-connected to the second drive member 12a, the second control circuit is electrically connected to the second drive motor 16a, and the second switch is electrically connected to the second control circuit for turning on or off the short-circuit state of the second drive motor 16a.

[0227] Specifically, the second drive motor 16a can be arranged inside the second shell 11a or outside the second shell 11a. Preferably, the second drive motor 16a is arranged outside the second shell 11a, and the drive shaft of the second drive motor 16a extends into the second shell 11a and is transmission-connected with the second drive member 12a, so as to facilitate the assembly and disassembly of the second drive motor 16a.

[0228] The second control circuit is also provided with a third switch (equivalent to the second switch in the first control circuit above). When the second drive motor 16a is powered on and working normally, the second switch (equivalent to the first switch in the first control circuit) provided on the second housing 11a is in a connected state, and the third switch is generally in a disconnected state. When there is a power outage or the power is exhausted, the second switch and the third switch are both in a connected state, and the second drive motor 16a is short-circuited at this time. Whether the second drive motor 16a is short-circuited can be controlled by adjusting the state of the second switch. For example, when the second switch is disconnected, the short-circuited state of the second drive motor 16a is released; when the second switch is connected again, the second drive motor 16a is in a short-circuited state again.

[0229] Considering that some motors (such as planetary gear motors) do not have a self-locking function, when the positive and negative short circuits of the motors are greatly increased, the motor's stall torque reaches a certain self-locking ability. Whether it can be self-locking at this time depends on the size of the load being lifted. When the load is too large and the positive and negative short circuits of the motors cannot achieve the self-locking function, a one-way resistance gear (i.e., the resistance member 14 mentioned above) or a motor with a larger torque specification can be selected to achieve the self-locking function. In addition, the second drive motor 16a is set to a state of positive and negative short circuits under normal conditions through the second control circuit, and the positive and negative are disconnected during operation.

[0230] In this way, when the lamp pole lifting mechanism 100 is in a power outage or the power is exhausted, the second drive motor 16a is in a positive and negative short-circuited state. When the lamp pole lifting mechanism 100 is powered off and needs to be manually retracted, the positive and negative lines of the short-circuited second drive motor 16a are disconnected through the set mechanical switch, i.e., the second switch, so that the second drive motor 16a has no self-locking function, and the pole body can be manually retracted, that is, the lamp pole lifting mechanism 100 can be manually retracted.

[0231] See also Figures 7 to 9 and Fig.17 Furthermore, the mechanical transmission assembly 10 also includes a third clamping member 17a located outside the second shell 11a, one end of the third clamping member 17a is connected to the second drive motor 16a, and the other end is connected to the second shell 11a, and the third clamping member 17a applies a clamping force on the second drive motor 16a in the direction of the second drive member 12a.

[0232] It is understandable that when the second driving member 12a and the second transmission member 13a are pressed toward the first rod 20 / the second rod 40 by the pressing force, some gaps may appear between the second driving member 12a and the second driving motor 16a, thereby affecting the transmission cooperation relationship between the two.

[0233] When the second transmission member 13a switches between the first rod body 20 and the second rod body 40, in order to ensure that the second drive motor 16a and the second drive member 12a still maintain a close transmission connection relationship, the present embodiment further provides a third clamping member 17a outside the second shell 11a. The third clamping member 17a may be an elastic element similar to the first clamping member 14a / the second clamping member, and the surface of the second shell 11a may be provided with a protrusion or the like to facilitate the sleeve and fixation of one end of the third clamping member 17a.

[0234] After the third clamping member 17a is assembled on the second shell 11a, that is, one end of the third clamping member 17a is connected to the second shell 11a and the other end is connected to the second drive motor 16a, the third clamping member 17a is in a stretched state, and a clamping force is applied to the second drive motor 16a in the direction of the second drive member 12a. Therefore, when the second transmission member 13a switches with the first rod body 20 and the second rod body 40, causing the position of the second drive member 12a to change, the second drive motor 16a still maintains a tight and stable connection with the second drive member 12a, thereby ensuring the normal operation of the lamp pole lifting mechanism 100.

[0235] The third pressing member 17a may be a spring or other elastic element that can be applied to the present embodiment and can achieve the same or similar functions. It may be the same as or different from the first pressing member 14a and the second pressing member, and no specific limitation is made here.

[0236] Furthermore, the first driven structure 21 is a toothed structure arranged along the length direction of the first rod body 20, and the second driven structure 41 is a toothed structure arranged along the length direction of the second rod body 40. The mechanical transmission assembly 10 is meshed with the first driven structure 21 or the second driven structure 41.

[0237] That is to say, in this embodiment, transmission coordination is achieved through the toothed first driven structure 21 and the second driven structure 41 and the mechanical transmission assembly 10. The first driving member 12 and the first transmission member 13 in the mechanical transmission assembly 10 are both gear structures, which can stably transmit the driving force to the first driven structure 21, the second driven structure 41 or the third driven structure 513 through gear meshing transmission, thereby realizing stable driving and lifting of the first rod body 20 and the second rod body 40.

[0238] Furthermore, the lamp pole lifting mechanism 100 further includes a third rod body located in the internal space and sleeved with the second rod body 40, the third rod body can move in the internal space along the length direction of the housing 30, and a fourth driven structure is provided on the third rod body. After driving the second rod body 40 to extend to the extreme position, the mechanical transmission assembly 10 separates from the second driven structure 41 and switches to transmission cooperation with the fourth driven structure, and the mechanical transmission assembly 10 can drive the third rod body to extend from the internal space or retract into the internal space.

[0239] In order to improve the height that the lamp pole lifting mechanism 100 can be raised and lowered, this embodiment is further provided with a third rod body on the basis of the first rod body 20 and the second rod body 40. The outer diameter of the second rod body 40 is smaller than the inner diameter of the third rod body, so that the third rod body can be sleeved on the outside of the second rod body 40 to achieve the connection and relative movement between the second rod body 40 and the third rod body, and also make the lifting and moving of the second rod body 40 in the third rod body more stable. The size of the third rod body is adapted to the size of the internal space, which makes the lifting and moving of the third rod body in the outer shell 30 more stable.

[0240] The content of how the mechanical transmission assembly 10 switches between the second rod body 40 and the third rod body can refer to the content of how the mechanical transmission assembly 10 switches between the first rod body 20 and the second rod body 40 above, and will not be repeated here.

[0241] In this embodiment, the fourth driven structure is on the same side as the first driven structure 21, the second driven structure 41 and the third driven structure 513, or it can be understood that the fourth driven structure is on the same straight line as the other driven structures, so that the mechanical transmission component 10 can seamlessly switch and smoothly connect between multiple driven structures.

[0242] The lamp pole lifting mechanism 100 of this embodiment has a multi-section rod body. When the lamp pole lifting mechanism 100 is extended, that is, when the rod body rises, after the first rod body 20 and the second rod body 40 are locked, the first rod body 20 and the second rod body 40 can rise together. After the second rod body 40 rises and is locked with the third rod body, the first rod body 20, the second rod body 40 and the third rod body can rise together until the third rod body is completely extended from the outer shell 30.

[0243] When the lamp pole lifting mechanism 100 is being accommodated, that is, when the pole body is lowered, the third pole body is first gradually accommodated in the outer shell 30, and then the second pole body 40 and the third pole body are unlocked, and the second pole body 40 gradually descends until it is completely accommodated in the third pole body, and then the first pole body 20 and the second pole body 40 are unlocked, and the first pole body 20 gradually descends until it is completely accommodated in the second pole body 40, and the entire lamp pole lifting mechanism 100 is completely accommodated.

[0244] By analogy, a fourth rod body, a fifth rod body and more rod bodies may be added, and the liftable height of the lamp pole lifting mechanism 100 may be increased by increasing the number of rod bodies.

[0245] See also Fig.17 Furthermore, the lamp pole lifting mechanism 100 also includes a manual driving member 60 that is detachably arranged and cooperates with the mechanical transmission assembly 10 for transmission. The manual driving member 60 can drive the mechanical transmission assembly 10 to move, so as to drive the first rod body 20 to extend from or retract into the second rod body, or to drive the second rod body to extend from or retract into the internal space.

[0246] In order to avoid the situation where an external driving source such as a driving motor is affected by electricity, such as avoiding the situation where the lamp pole lifting mechanism 100 is out of power or the power is exhausted, resulting in the inability to drive the first rod body 20 and the second rod body 40 to rise and fall through the driving source, this embodiment provides a manual driving component 60 outside the outer shell 30 that is detachably connected to the mechanical transmission assembly 10, and the manual driving component 60 has a driving part that is adapted to the mechanical transmission assembly 10, such as a bevel tooth part that is adapted to the gear.

[0247] When the driving source cannot be used due to power failure, the driving source can be removed from the outside of the mechanical transmission assembly 10, and the driving part of the manual driving member 60 can be inserted into the mechanical transmission assembly 10. The driving part can be connected to the first driving member 12, the first transmission member 13, the second driving member 12a or the second transmission member 13a mentioned above, and then the first driving member 12, the first transmission member 13, the second driving member 12a or the second transmission member 13a can be manually driven to move by shaking, rotating or pulling the manual driving member 60, so that when the driving source cannot be used, the lamp pole lifting mechanism 100 can be manually controlled to lift and lower, thereby solving the problem of power limitation.

[0248] Preferably, the manual drive member 60 is transmission-connected with the first drive member 12 or the second drive member 12a. The manual drive member 60 can be transmission-connected with the first drive member 12 or the second drive member 12a directly at the position of the original drive source of the mechanical transmission assembly 10, which is convenient for disassembly and assembly, and there is no need to make any other modifications to the mechanical transmission assembly 10.

[0249] See also Figure 1 , Fig.18 and Fig.19 The lifting lamp 1000 of the embodiment of the utility model comprises a lamp head 200, a base 300 and a lamp pole lifting mechanism 100 according to any of the above embodiments. One end of the lamp pole lifting mechanism 100 is connected to the lamp head 200, and the other end is connected to the base 300. The lamp pole lifting mechanism 100 can drive the lamp head 200 to rise and fall relative to the base 300 to adjust the lighting range of the lifting lamp 1000. Fig.18 This is a schematic diagram of the lifting lamp 1000 in a raised state. Fig.19 It is a schematic diagram of the lifting light 1000 in the retracted and lowered state.

[0250] In the lifting lamp 1000 of the utility model, the lamp pole lifting mechanism 100 includes a first rod body 20 that can be extended from the outer shell 30 or accommodated in the outer shell 30, and a first driven structure 21 is provided on the first rod body 20, and a mechanical transmission component 10 that cooperates with the first driven structure 21 is provided on the outer shell 30. The mechanical transmission component 10 can apply force to the first driven structure 21 to drive the first rod body 20 to extend from the outer shell 30 or be retracted into the outer shell 30, thereby realizing the lifting / retracting function of the lamp pole lifting mechanism 100. This solution adopts a relatively simple mechanical transmission structure and mechanical transmission relationship to effectively realize the lifting / retracting function, and the implementation cost is low. The later maintenance of the mechanical transmission component 10 arranged outside the outer shell 30 is also relatively simple, which improves the application scope of the lifting lamp 1000.

[0251] The lamp holder 200 of the lifting lamp 1000 can be an ordinary lamp holder 200, such as an LED lamp holder, as long as it can provide normal lighting. The lamp holder 200 can also be a lamp holder 200 that can adjust the lighting angle and direction, can be folded and unfolded, etc., so that the lifting lamp 1000 can adapt to more different lighting conditions and improve the scope of application. There is no actual restriction on the specific structure of the lamp holder 200 and the connection relationship with the lamp pole lifting mechanism 100, etc., which can be selected according to the specific situation.

[0252] In addition, the base 300 of the lifting lamp 1000 can be an ordinary base 300, as long as it can be installed and support the lamp pole lifting mechanism 100. The base 300 can also be a base 300 with adjustable parameters such as height, angle or direction, so that the lifting lamp 1000 can adapt to more different terrains and improve the scope of application. There is no actual restriction on the specific structure of the base 300 and the connection relationship with the lamp pole lifting mechanism 100, which can be selected according to the specific situation.

[0253] It is understandable that those skilled in the art can, under the guidance of the above embodiments, combine various implementations in the above embodiments to obtain technical solutions of multiple implementations.

[0254] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lamp pole lifting mechanism, characterized in that: include: A shell, wherein the top of the shell is provided with an opening, and an inner space communicating with the opening is formed in the shell; a first rod body movable in the internal space along the length direction of the shell, the first rod body being able to extend from the internal space or be retracted into the internal space, and a first driven structure being provided on the first rod body; as well as A mechanical transmission component is disposed on the housing and is in transmission cooperation with the first driven structure. The mechanical transmission component can apply force to the first driven structure to drive the first rod to extend from the internal space or to be retracted into the internal space.

2. The lamp pole lifting mechanism according to claim 1, characterized in that: The lamp pole lifting mechanism also includes: a second rod body located in the internal space and sleeved with the first rod body, the second rod body being movable in the internal space along the length direction of the shell, and a second driven structure being provided on the second rod body; After driving the first rod to extend to the extreme position, the mechanical transmission component separates from the first driven structure and switches to transmission cooperation with the second driven structure. The mechanical transmission component can drive the second rod to extend from the internal space or retract into the internal space.

3. The lamp pole lifting mechanism according to claim 2, characterized in that: The lamp pole lifting mechanism further comprises a transmission switching assembly provided on the second rod body and the mechanical transmission assembly; After driving the first rod body to extend to the limit position, the mechanical transmission component is separated from the first driven structure through the transmission switching component, and switches to transmission cooperation with the second driven structure; When the mechanical transmission assembly drives the first rod body to retract from the extreme position to the second rod body, the mechanical transmission assembly is separated from the second driven structure through the transmission switching assembly, and switches to transmission cooperation with the first driven structure.

4. The lamp pole lifting mechanism according to claim 3, characterized in that: The transmission switching assembly comprises: a switching transition piece provided at the top end of the second rod body, through which the first rod body passes, and which extends along the length direction of the second rod body; and A switching auxiliary member provided on the mechanical transmission assembly, the switching auxiliary member comprising a switching auxiliary end, the switching auxiliary end being slidably connected to the switching transition member; When the switching transition piece moves with the second rod body, it can slide relative to the switching auxiliary piece and cause the switching auxiliary end to move slightly, so that the switching auxiliary piece drives the mechanical transmission component to separate from the first driven structure and switch to transmission cooperation with the second driven structure, or the switching auxiliary piece drives the mechanical transmission component to separate from the second driven structure and switch to transmission cooperation with the first driven structure.

5. The lamp pole lifting mechanism according to claim 4, characterized in that: Starting from the stated extreme position: When the switching transition piece slides relative to the switching auxiliary piece in a direction away from the housing, the switching auxiliary piece is driven to slightly move in a direction away from the side of the switching transition piece, and the mechanical transmission component is driven to separate from the first driven structure and then to cooperate with the second driven structure in transmission; When the switching transition piece slides relative to the switching auxiliary piece toward the outer shell, the switching auxiliary piece is driven to move slightly toward the side of the switching transition piece, and the mechanical transmission component is driven to separate from the second driven structure and then cooperate with the first driven structure.

6. The lamp pole lifting mechanism according to claim 4, characterized in that: The switching transition piece comprises: A main body is arranged on one end of the second rod body close to the opening, the first rod body passes through the main body, and the main body extends along the length direction of the second rod body; A slide groove is provided on the side of the main body, and the switching auxiliary member is slidably connected to the slide groove; and a third driven structure disposed on the main body and in the same plane as the second driven structure; When the mechanical transmission assembly drives the first rod to extend to the extreme position, the switching auxiliary component slides relative to the slide slot, and the mechanical transmission assembly is guided to switch to transmission cooperation with the third driven structure, and then transitions from the third driven structure to transmission cooperation with the second driven structure.

7. The lamp pole lifting mechanism according to claim 6, characterized in that: The chute comprises: A first section extending along the length direction of the second rod body and toward the bottom end of the second rod body; a second section docking with the second rod body, wherein an extension line of the second section on the main body is located outside the first section; and A track-changing section smoothly connects the first section and the second section, and the switching transition piece can slide from the first section to the second section through the track-changing section.

8. The lamp pole lifting mechanism according to claim 6, characterized in that: The second rod body is provided with a guide groove which is on the same side as the slide groove and is connected to the slide groove, and the guide groove is distributed along the length direction of the second rod body; When the mechanical transmission component transitions from the third driven structure to the transmission cooperation with the second driven structure, the switching auxiliary member slides from the sliding groove to the guide groove.

9. The lamp pole lifting mechanism according to claim 4, characterized in that: The mechanical transmission assembly also includes: A first shell is arranged at the top of the housing, the first rod and the second rod can pass through the first shell, and the switching auxiliary component is arranged in the first shell; a first driving member located in the first housing and disposed on the switching auxiliary member; and A first transmission member is located in the first housing and is arranged on the switching auxiliary member. The first transmission member is transmission-connected to the first driving member and transmission-coordinated with the first driven structure or the second driven structure.

10. The lamp pole lifting mechanism according to claim 9, characterized in that: The first driving member is a driving gear, and the first transmission member is a driven gear.

11. The lamp pole lifting mechanism according to claim 9, characterized in that: The two opposite inner side walls of the first shell are each provided with a first movable groove, a mounting groove and a second movable groove; Two ends of the first driving member are fixed to the switching auxiliary member and embedded in the two mounting grooves; Two ends of the first transmission member are fixed to the switching auxiliary member and movably embedded in the two first movable grooves; The switching auxiliary component comprises a position adjustment end opposite to the switching auxiliary end, and two sides of the position adjustment end are respectively and movably embedded in two of the second movable grooves.

12. The lamp pole lifting mechanism according to any one of claims 2 to 11, characterized in that: The first driven structure is a toothed structure arranged along the length direction of the first rod body, the second driven structure is a toothed structure arranged along the length direction of the second rod body, and the mechanical transmission component is meshed with the first driven structure or the second driven structure.

13. The lamp pole lifting mechanism according to claim 9, characterized in that: The mechanical transmission assembly further comprises a resistance member movably disposed in the first housing, and the resistance member can abut against the first transmission member.

14. The lamp pole lifting mechanism according to claim 13, characterized in that: The resistance member is a one-way resistance member.

15. The lamp pole lifting mechanism according to claim 9, characterized in that: The mechanical transmission assembly also includes: A first drive motor is disposed on the first housing, and the first drive motor is drivingly connected to the first drive member; a first control circuit disposed on the first housing and used to rotate and / or short-circuit the first drive motor, the first control circuit being electrically connected to the first drive motor; and A first switch is provided on the first housing, the first switch is electrically connected to the first control circuit, and is used to turn on or off the short-circuit state of the first drive motor.

16. The lamp pole lifting mechanism according to claim 2, characterized in that: A locking piece is provided at the top end of the second rod body, and the locking piece passes through the second rod body and has a compressing force toward the inside of the second rod body. When the first rod body is extended to the extreme position, at least part of the locking piece is embedded in the first rod body, locking and connecting the first rod body and the second rod body.

17. The lamp pole lifting mechanism according to claim 16, characterized in that: The mechanical transmission assembly is provided with an opening portion, and when the second rod is retracted to the limit position, the opening portion opens the portion of the locking element embedded in the first rod, thereby releasing the locking connection between the first rod and the second rod.

18. The lamp pole lifting mechanism according to claim 4, characterized in that: The mechanical transmission assembly also includes: A second shell disposed at the top of the shell; a second driving member disposed in the second housing; and A second transmission member is located in the second housing and is arranged on the switching auxiliary member. The second transmission member is transmission-connected to the second driving member and transmission-coordinated with the first driven structure or the second driven structure.

19. The lamp pole lifting mechanism according to claim 18, characterized in that: The second driving member is a driving gear, and the second transmission member is a driven gear.

20. The lamp pole lifting mechanism according to claim 18, characterized in that: The second housing has two opposite inner side walls provided with first movable holes, and the mechanical transmission assembly further includes a first pressing member located outside the second housing; Two ends of the second transmission member respectively pass through the two first movable holes and then emerge from the second housing and can slightly move in the first movable holes toward the rod body; One end of the first pressing member is connected to the end of the second transmission member, and the other end is connected to the second shell. The first pressing member applies a pressing force to the second transmission member in the direction of the rod body.

21. The lamp pole lifting mechanism according to claim 20, characterized in that: The second housing is provided with a second movable hole on two opposite inner side walls, and the mechanical transmission assembly further includes a second pressing member located outside the second housing; Two ends of the second driving member respectively pass through the two second movable holes and then emerge from the second housing and can slightly move toward the rod body in the second movable holes; One end of the second pressing member is connected to the end of the second driving member, and the other end is connected to the second shell. The second pressing member applies a pressing force on the second driving member in the direction of the rod body.

22. The lamp pole lifting mechanism according to claim 20, characterized in that: The mechanical transmission assembly also includes: a second drive motor disposed on the second housing, the second drive motor being drivingly connected to the second drive member; a second control circuit disposed on the second housing and used to rotate and / or short-circuit the second drive motor, the second control circuit being electrically connected to the second drive motor; and A second switch is provided on the second housing, and the second switch is electrically connected to the second control circuit, and is used to turn on or off the short-circuit state of the second drive motor.

23. The lamp pole lifting mechanism according to claim 22, characterized in that: The mechanical transmission assembly also includes a third clamping member located outside the second shell, one end of the third clamping member is connected to the second drive motor, and the other end is connected to the second shell, and the third clamping member applies a clamping force on the second drive motor in the direction of the second drive member.

24. The lamp pole lifting mechanism according to any one of claims 18 to 23, characterized in that: The first driven structure is a toothed structure arranged along the length direction of the first rod body, the second driven structure is a toothed structure arranged along the length direction of the second rod body, and the mechanical transmission component is meshed with the first driven structure or the second driven structure.

25. The lamp pole lifting mechanism according to claim 2, characterized in that: The lamp pole lifting mechanism also includes: a third rod body located in the internal space and sleeved with the second rod body, the third rod body being movable in the internal space along the length direction of the outer shell, and a fourth driven structure being disposed on the third rod body; After driving the second rod to extend to the extreme position, the mechanical transmission component separates from the second driven structure and switches to transmission cooperation with the fourth driven structure. The mechanical transmission component can drive the third rod to extend from the internal space or retract into the internal space.

26. The lamp pole lifting mechanism according to claim 2, characterized in that: The lamp pole lifting mechanism also includes a manual driving component that is detachably arranged and cooperates with the mechanical transmission component. The manual driving component can drive the mechanical transmission component to drive the first rod body to extend from or retract into the second rod body, or drive the second rod body to extend from or retract into the internal space.

27. A lifting lamp, characterized in that: include: Lamp holder; Base; as well as According to the lamp pole lifting mechanism according to any one of claims 1 to 26, one end of the lamp pole lifting mechanism is connected to the lamp head, and the other end is connected to the base, and the lamp pole lifting mechanism can drive the lamp head to rise and fall relative to the base.

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