A telescopic structure and a lighting fixture

Abstract

This application provides a telescopic structure and a lamp, belonging to the field of lighting technology. A telescopic rod assembly is movably mounted on a main body, with the telescopic direction being a first direction. A first mounting shaft is mounted on the main body, its axial direction intersecting the first direction. A first rotating wheel is mounted on the first mounting shaft, rotating relative to the main body around the shaft. The first rotating wheel abuts against the telescopic rod assembly radially, and the telescopic rod assembly telescopically moves relative to the main body to drive the first rotating wheel to rotate. A one-way damper abuts against the first rotating wheel to restrict its rotation. The one-way damper causes different resistances to the first rotating wheel rotating in two opposite directions, thus allowing the resistance to the telescopic rod assembly extending relative to the main body and the resistance to its retraction relative to the main body to be relatively different. This adapts to different requirements for the resistance to the extension and retraction of the telescopic rod assembly, making the telescopic structure convenient to use.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and more particularly to a telescopic structure and a luminaire. Background Technology

[0002] Telescopic structures are characterized by their retractability, ease of storage, and portability, and are widely used in various products. They allow for the adjustment of product dimensions to make the product more convenient to use.

[0003] In related technologies, telescopic structures are inconvenient to use. Utility Model Content

[0004] To address the related technical problems, embodiments of this application aim to provide a telescopic structure and a lighting fixture.

[0005] The technical solution of this application embodiment is implemented as follows:

[0006] This application provides a telescopic structure, including:

[0007] main body;

[0008] A telescopic rod assembly is movably disposed on the main body, the telescopic rod assembly being able to extend or retract relative to the main body, and the telescopic direction of the telescopic rod assembly being a first direction;

[0009] A first mounting shaft is disposed on the main body, and the axial direction of the first mounting shaft is a second direction that intersects the first direction;

[0010] A first rotating wheel is disposed on the first mounting shaft. The first rotating wheel rotates relative to the main body around the first mounting shaft. The first rotating wheel abuts against the telescopic rod assembly along the radial direction of the first rotating wheel. The telescopic rod assembly moves telescopically to drive the first rotating wheel to rotate.

[0011] A one-way damper abuts against the first wheel to limit the rotation of the first wheel.

[0012] In some embodiments, the unidirectional damper is a first unidirectional damping wheel, which at least partially rotates with the first wheel to provide damping force to the first wheel.

[0013] In some embodiments, the first unidirectional damping wheel has a protrusion, the first rotating wheel has a groove, the protrusion is located in the groove, and the protrusion abuts against the groove wall along the circumference of the first rotating wheel to rotate with the first rotating wheel.

[0014] In some embodiments, the first one-way damping wheel is sleeved on the first mounting shaft, and the first one-way damping wheel is located on one side of the first rotating wheel along the second direction.

[0015] In some embodiments, the telescopic structure further includes a support member disposed on the main body. The support member is located on the side of the telescopic rod assembly that is radially away from the first rotating wheel. The support member abuts against the telescopic rod assembly radially, so that the telescopic rod assembly is spaced apart from the main body radially.

[0016] In some embodiments, the support member includes a pivot and a second wheel disposed on the pivot. The pivot is disposed on the main body, and the second wheel abuts against the telescopic rod assembly along the radial direction of the telescopic rod assembly. The telescopic rod assembly extends and retracts to drive the second wheel to rotate.

[0017] In some embodiments, the main body includes a first mounting sleeve and a support assembly connected to each other, a first mounting shaft is connected to the first mounting sleeve, the first mounting sleeve is sleeved on the support assembly, the support assembly is sleeved on the telescopic rod assembly, the support assembly has a telescopic cavity, a portion of the telescopic rod assembly is movable within the telescopic cavity, and the support assembly has a clearance opening communicating with the telescopic cavity on at least one side along the radial direction of the telescopic rod assembly, and the first rotating wheel passes through the clearance opening and abuts against the telescopic rod assembly within the telescopic cavity.

[0018] In some embodiments, the first mounting sleeve and the support assembly enclose a mounting cavity, the first rotating wheel and the one-way damper are located within the mounting cavity, and the opening of the mounting cavity is located below the mounting cavity.

[0019] In some embodiments, the telescopic structure further includes a first locking member disposed on the main body, and the telescopic rod assembly passing through the first locking member. When the first locking member is in a locked state, the first locking member restricts the telescopic movement of the telescopic rod assembly. When the first locking member is in an unlocked state, the telescopic rod assembly can telescopically move relative to the main body.

[0020] A second aspect of this application provides a lamp, comprising:

[0021] The telescopic structure described above;

[0022] The lamp head is located at one end of the telescopic rod assembly that is away from the main body along the first direction.

[0023] In some embodiments, when the telescopic rod assembly retracts relative to the body along the first direction, the telescopic rod assembly drives the lamp head to move downward, the first wheel rotates along a preset rotation direction, and the one-way damper abuts against the first wheel to limit the rotation of the first wheel along the preset rotation direction.

[0024] The telescopic structure provided in this application embodiment allows the telescopic rod assembly to extend or retract relative to the main body. A first rotating wheel is disposed on a first mounting shaft and rotates relative to the main body around the first mounting shaft. The first rotating wheel abuts against the telescopic rod assembly along its radial direction. The telescopic rod assembly extends and retracts to drive the first rotating wheel to rotate. During the extension and retraction of the telescopic rod assembly relative to the main body, the first rotating wheel transforms the sliding friction between the telescopic rod assembly and the main body into rolling friction, which is beneficial for the extension and retraction of the telescopic rod assembly relative to the main body. A one-way damper abuts against the first rotating wheel to restrict its rotation. The one-way damper causes the resistance to the first rotating wheel to rotate in two opposite directions to be different, thereby making the relative magnitudes of the resistance to the extension of the telescopic rod assembly relative to the main body and the resistance to the retraction of the telescopic rod assembly relative to the main body different. This allows it to adapt to different requirements for the resistance to the extension and retraction of the telescopic rod assembly. The telescopic structure is suitable for various situations and is easy to use. The resistance of the telescopic rod assembly to its extension or retraction relative to the main body is mainly affected by the damping force of the unidirectional damper, and is not entirely determined by the friction between the first rotating wheel and the telescopic rod assembly. The pressure between the first rotating wheel and the telescopic rod assembly has little effect on the damping force of the unidirectional damper, which makes the dimensional accuracy requirements of the telescopic rod assembly in the radial direction of the telescopic rod assembly lower, making it easier to manufacture the telescopic rod assembly and helping to reduce the cost of the telescopic structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the telescopic structure according to an embodiment of this application;

[0026] Figure 2 for Figure 1 Sectional view at point AA;

[0027] Figure 3 for Figure 1 Sectional view at point BB;

[0028] Figure 4 for Figure 1 Sectional view at CC;

[0029] Figure 5 This is a schematic diagram of the assembly of the first mounting sleeve, the first rotating wheel, and the one-way damper according to an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the structure of the lamp according to an embodiment of this application;

[0031] Figure 7 for Figure 6 Sectional view at point DD;

[0032] Figure 8 for Figure 7 Enlarged view at point E in the middle.

[0033] Explanation of reference numerals in the attached figures

[0034] 1. Main body; 11. First mounting sleeve; 111. Mounting cavity; 112. Opening; 12. Support assembly; 121. Telescopic cavity; 122. Clearance opening; 123. Support rod; 124. Handle; 2. Telescopic rod assembly; 21. First telescopic rod; 22. Second telescopic rod; 3. First mounting shaft; 4. First rotating wheel; 41. Groove; 5. One-way damper; 51. First one-way damping wheel; 52. Protrusion; 6. Support member; 61. Second 62. Rotating wheel; 7. Rotating shaft; 8. First locking element; 9. Locking ring; 10. First locking cavity; 11. First notch; 12. Liner; 13. Second locking cavity; 14. Second notch; 15. Damping assembly; 16. Third rotating wheel; 17. Fourth rotating wheel; 18. Second mounting shaft; 19. Second mounting sleeve; 20. Second locking element; 10. Telescopic structure; 21. Lamp head; R1. First direction; R2. Second direction; R3. Preset rotation direction. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0037] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the directions in normal use, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions in normal use.

[0038] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0039] In related technologies, telescopic structures include telescopic rod assemblies and a main body. The telescopic rod assemblies are movably mounted on the main body and can extend or retract relative to the main body. The resistance encountered by the telescopic rod assemblies when extending or retracting is roughly the same, making it difficult to adapt to the different resistances when extending and retracting the telescopic rod assemblies, thus making the telescopic structure inconvenient to use.

[0040] For example, a telescopic structure is installed on a lamp. The lamp head is raised or lowered by the telescopic structure. When the lamp head is lowered, the weight of the lamp head will cause the telescopic rod assembly to slide down quickly. In order to avoid the lamp head moving quickly and injuring people's hands, the resistance of the telescopic structure needs to be set to be large. The large resistance of the telescopic structure makes it difficult to pull the lamp head up. The resistance of the telescopic rod assembly is roughly the same when it extends or retracts, which makes it difficult to adapt to the different needs of the lamp head rising and falling. The telescopic structure is inconvenient to use.

[0041] This application provides a telescopic structure 10, please refer to [link / reference]. Figures 1-3 The telescopic structure 10 includes a main body 1, a telescopic rod assembly 2, a first mounting shaft 3, a first rotating wheel 4, and a one-way damper 5. The telescopic rod assembly 2 is movably disposed on the main body 1 and can extend or retract relative to the main body 1. The telescopic direction of the telescopic rod assembly 2 is a first direction R1. The first mounting shaft 3 is disposed on the main body 1, and the axial direction of the first mounting shaft 3 is a second direction R2 that intersects with the first direction R1. The first rotating wheel 4 is disposed on the first mounting shaft 3 and rotates relative to the main body 1 around the first mounting shaft 3. The first rotating wheel 4 abuts against the telescopic rod assembly 2 along the radial direction of the first rotating wheel 4. The telescopic rod assembly 2 moves telescopically to drive the first rotating wheel 4 to rotate. The one-way damper 5 abuts against the first rotating wheel 4 to restrict the rotation of the first rotating wheel 4.

[0042] It should be noted that the unidirectional damper 5 is used to provide resistance to the motion of an object in one direction in order to decelerate the object. The unidirectional damper 5 has a damping effect in one direction, while the damping effect in the other direction is relatively small.

[0043] For example, the unidirectional damper 5 has a damping effect in one direction and no damping effect in the other direction.

[0044] It should be noted that when the telescopic rod assembly 2 extends or retracts relative to the main body 1 along the first direction R1, the rotation direction of the first rotating wheel 4 is opposite.

[0045] It should be noted that when the telescopic rod assembly 2 extends or retracts along the first direction R1, the friction between the telescopic rod assembly 2 and the first rotating wheel 4 causes the first rotating wheel 4 to rotate. The friction force of the telescopic rod assembly 2 on the first rotating wheel 4 is greater than the damping force of the one-way damper 5 on the first rotating wheel 4.

[0046] For example, when the telescopic rod assembly 2 retracts into the main body 1, the first rotating wheel 4 rotates along the preset rotation direction R3, and the one-way damper 5 has a damping effect on the first rotating wheel 4. When the telescopic rod assembly 2 extends, the first rotating wheel 4 rotates away from the preset rotation direction R3. The damping effect of the one-way damper 5 on the first rotating wheel 4 rotating away from the preset rotation direction R3 is relatively small compared to the damping effect on the first rotating wheel 4 rotating along the preset rotation direction R3.

[0047] For example, when the telescopic rod assembly 2 retracts into the main body 1, the first rotating wheel 4 rotates along the preset rotation direction R3, and the one-way damper 5 has a damping effect on the first rotating wheel 4. When the telescopic rod assembly 2 extends, the first rotating wheel 4 rotates away from the preset rotation direction R3, and the one-way damper 5 has no damping effect on the first rotating wheel 4.

[0048] For example, the first mounting shaft 3 is mounted on the main body 1 and is fixed relative to the main body 1. The first rotating wheel 4 is rotatably connected to the first mounting shaft 3 and can rotate relative to the first mounting shaft 3.

[0049] For example, the first mounting shaft 3 is rotatably connected to the main body 1, the first rotating wheel 4 is mounted on the first mounting shaft 3, and the first rotating wheel 4 drives the first mounting shaft 3 to rotate relative to the main body 1.

[0050] For example, a unidirectional damper 5 is disposed on the main body 1.

[0051] In this embodiment, the telescopic rod assembly 2 can extend or retract relative to the main body 1. A first rotating wheel 4 is mounted on a first mounting shaft 3 and rotates relative to the main body 1 around the first mounting shaft 3. The first rotating wheel 4 abuts against the telescopic rod assembly 2 radially. The telescopic rod assembly 2 extends and retracts to drive the first rotating wheel 4 to rotate. During this extension and retraction, the first rotating wheel 4 transforms the sliding friction between the telescopic rod assembly 2 and the main body 1 into rolling friction, which is beneficial for the extension and retraction of the telescopic rod assembly 2 relative to the main body 1. A one-way damper 5 abuts against the first rotating wheel 4 to restrict its rotation. The one-way damper 5 causes different resistances to the first rotating wheel 4 rotating in two opposite directions, thus making the resistance to the extension of the telescopic rod assembly 2 relative to the main body 1 and the resistance to its retraction relatively different. This adapts to different resistance requirements for the extension and retraction of the telescopic rod assembly 2, making the telescopic structure 10 suitable for various situations and convenient to use. The resistance of the telescopic rod assembly 2 extending or retracting relative to the main body 1 is mainly affected by the damping force of the one-way damper 5, and is not entirely determined by the friction between the first rotating wheel 4 and the telescopic rod assembly 2. The pressure between the first rotating wheel 4 and the telescopic rod assembly 2 has little effect on the damping force of the one-way damper 5, which makes the dimensional accuracy requirements of the telescopic rod assembly 2 in the radial direction lower, which facilitates the production of the telescopic rod assembly 2 and helps to reduce the cost of the telescopic structure 10.

[0052] In some embodiments, please refer to Figures 1-3 The one-way damper 5 is a first one-way damping wheel 51, which at least partially rotates with the first rotating wheel 4 to provide damping force to the first rotating wheel 4.

[0053] The first one-way damping wheel 51 is a one-way rotary damper. When the first one-way damping wheel 51 rotates, the viscosity of the damping oil inside generates damping. The first one-way damping wheel 51 has a damping effect when rotating in one direction, but no damping effect when rotating in the other direction.

[0054] In this embodiment, the unidirectional damper 5 is a first unidirectional damping wheel 51. The first unidirectional damping wheel 51 rotates at least partially with the first rotating wheel 4 to provide damping force to the first rotating wheel 4. The first unidirectional damping wheel 51 generates damping force by rotating. The space occupied by the unidirectional damping wheel in the first direction R1 is small, which makes it convenient to set the first unidirectional damping wheel 51.

[0055] It is understood that the one-way damper 5 is not limited to the first one-way damping wheel 51. Exemplarily, the one-way damper 5 includes a transmission rod and a spring, the transmission rod and the spring are arranged in a first direction R1, the transmission rod can abut or separate from the spring, the first rotating wheel 4 rotates to drive the transmission rod to move along the first direction R1, when the transmission rod moves towards the spring along the first direction R1, the transmission rod can compress the spring, and the damping effect is generated by the elastic force of the spring.

[0056] In some embodiments, please refer to Figure 2 The first one-way damping wheel 51 has a protrusion 52, and the first rotating wheel 4 has a groove 41. The protrusion 52 is located in the groove 41 and abuts against the groove wall of the groove 41 along the circumference of the first rotating wheel 4 so as to rotate with the first rotating wheel 4.

[0057] For example, the protrusion 52 is provided on opposite sides radially along the first unidirectional damping wheel 51.

[0058] In this embodiment, the first one-way damping wheel 51 has a protrusion 52, and the first rotating wheel 4 has a groove 41. The protrusion 52 is located in the groove 41. The protrusion 52 abuts against the groove wall of the groove 41 along the circumference of the first rotating wheel 4 so as to rotate with the first rotating wheel 4. Through the cooperation of the protrusion 52 and the groove 41, the first one-way damping wheel 51 and the first rotating wheel 4 can transmit rotational force and damping force better.

[0059] It is understood that the first one-way damping wheel 51 is not limited to having a protrusion 52, and the first rotating wheel 4 is not limited to having a groove 41. Exemplarily, the first mounting shaft 3 is rotatably connected to the body 1, and the first one-way damping wheel 51 is keyed to the first mounting shaft 3.

[0060] In some embodiments, please refer to Figures 1-3 The first one-way damping wheel 51 is sleeved on the first mounting shaft 3, and the first one-way damping wheel 51 is located on one side of the first rotating wheel 4 along the second direction R2.

[0061] It should be noted that the axis of the first rotating wheel 4 is parallel to the second direction R2.

[0062] For example, the first mounting shaft 3 is mounted on the main body 1, and the first one-way damping wheel 51 is rotatably connected to the first mounting shaft 3.

[0063] For example, the protrusion 52 is located on the side of the first one-way damping wheel 51 facing the first rotating wheel 4 along the second direction R2, and the groove 41 is located on the side of the first rotating wheel 4 facing the first one-way damping wheel 51 along the second direction R2.

[0064] In this embodiment, the first one-way damping wheel 51 is sleeved on the first mounting shaft 3. The first one-way damping wheel 51 is located on one side of the first rotating wheel 4 along the second direction R2. The first one-way damping wheel 51 is set up using the space on one side of the first rotating wheel 4 along the second direction R2, which reduces the space occupied by the first one-way damping wheel 51 on the side of the telescopic structure 10 radially away from the telescopic rod group 2 along the first rotating wheel 4, and reduces the space occupied by the first one-way damping wheel 51 on the telescopic structure 10 along the first direction R1.

[0065] It is understood that the first one-way damping wheel 51 is not limited to being located on one side of the first rotating wheel 4 along the second direction R2. Exemplarily, the first one-way damping wheel 51 is located on the side of the first rotating wheel 4 that is radially away from the telescopic rod assembly 2.

[0066] In some embodiments, please refer to Figure 3 and Figure 7 The telescopic structure 10 also includes a support member 6, which is disposed on the main body 1. The support member 6 is located on the side of the telescopic rod assembly 2 that is away from the first rotating wheel 4 along the radial direction of the telescopic rod assembly 2. The support member 6 abuts against the telescopic rod assembly 2 along the radial direction of the telescopic rod assembly 2 so that the telescopic rod assembly 2 is spaced apart from the main body 1 along the radial direction of the telescopic rod assembly 2.

[0067] For example, the telescopic rod assembly 2 is made of metal.

[0068] For example, the telescopic rod assembly 2 is made of aluminum.

[0069] For example, there are three support members 6, and the three support members 6 and the first rotating wheel 4 are arranged at circumferential intervals along the telescopic rod assembly 2.

[0070] For example, the surface where the telescopic rod assembly 2 abuts against the support member 6 is a plane.

[0071] For example, the surface where the telescopic rod assembly 2 abuts against the first rotating wheel 4 is a plane.

[0072] In this embodiment, the support member 6 is located on the side of the telescopic rod assembly 2 that is radially away from the first rotating wheel 4. The support member 6 abuts against the telescopic rod assembly 2 radially, so that the telescopic rod assembly 2 is spaced apart from the main body 1 radially. The support member 6 and the first rotating wheel 4 support the telescopic rod assembly 2 on both sides radially, so that the two sides radially of the telescopic rod assembly 2 do not contact the main body 1, reducing the friction between the telescopic rod assembly 2 and the main body 1 during the telescopic movement, and reducing the damage to the telescopic rod assembly 2 during the telescopic movement.

[0073] It is understood that the telescopic structure 10 is not limited to the provision of the support member 6. Exemplarily, the telescopic rod assembly 2 abuts against the main body 1 on the side of the telescopic rod assembly 2 that is radially away from the first rotating wheel 4.

[0074] In some embodiments, please refer to Figure 3 and Figure 7 The support member 6 includes a rotating shaft 62 and a second rotating wheel 61 disposed on the rotating shaft 62. The rotating shaft 62 is disposed on the main body 1. The second rotating wheel 61 abuts against the telescopic rod assembly 2 along the radial direction of the telescopic rod assembly 2. The telescopic rod assembly 2 moves to extend and retract to drive the second rotating wheel 61 to rotate.

[0075] For example, the axial direction of the rotating shaft 62 is parallel to the axial direction of the first mounting shaft 3.

[0076] For example, the telescopic structure 10 includes a second first one-way damping wheel 51, which abuts against the second rotating wheel 61 to limit the rotation of the second rotating wheel 61.

[0077] For example, the rotating shaft 62 is rotatably connected to the main body 1, the second rotating wheel 61 is fixed relative to the rotating shaft 62, and the second rotating wheel 61 drives the rotating shaft 62 to rotate relative to the main body 1.

[0078] For example, the rotating shaft 62 is fixedly connected to the main body 1, and the second rotating wheel 61 is rotatably connected to the rotating shaft 62, and the second rotating wheel 61 rotates relative to the rotating shaft 62.

[0079] In this embodiment, the support member 6 includes a rotating shaft 62 and a second rotating wheel 61 disposed on the rotating shaft 62. The rotating shaft 62 is disposed on the main body 1. The second rotating wheel 61 abuts against the telescopic rod assembly 2 along the radial direction of the telescopic rod assembly 2. The telescopic rod assembly 2 moves telescopically to drive the second rotating wheel 61 to rotate. The sliding friction between the telescopic rod assembly 2 and the support member 6 is converted into rolling friction through the second rotating wheel 61, reducing the friction between the telescopic rod assembly 2 and the support member 6, which is beneficial to the telescopic movement of the telescopic rod assembly 2.

[0080] It is understood that the support member 6 is not limited to including the pivot 62 and the second rotating wheel 61 disposed on the pivot 62. Exemplarily, the support member 6 is a slider connected to the main body 1.

[0081] In some embodiments, please refer to Figures 1-3 and Figure 8 The main body 1 includes a first mounting sleeve 11 and a support assembly 12 connected to each other. A first mounting shaft 3 is connected to the first mounting sleeve 11. The first mounting sleeve 11 is fitted onto the support assembly 12. The support assembly 12 is fitted onto the telescopic rod assembly 2. The support assembly 12 has a telescopic cavity 121. A portion of the telescopic rod assembly 2 moves within the telescopic cavity 121. The support assembly 12 has a clearance opening 122 communicating with the telescopic cavity 121 on at least one side along the radial direction of the telescopic rod assembly 2. A first rotating wheel 4 passes through the corresponding clearance opening 122 and abuts against the telescopic rod assembly 2 within the telescopic cavity 121.

[0082] For example, the support assembly 12 has clearance openings 122 communicating with the telescopic cavity 121 on opposite sides of the telescopic rod assembly 2 in the radial direction.

[0083] For example, the first rotating wheel 4 passes through one of the clearance openings 122, and the second rotating wheel 61 passes through the other clearance opening 122 and abuts against the telescopic rod assembly 2 in the telescopic cavity 121.

[0084] In this embodiment, the telescopic rod assembly 2 moves within the telescopic cavity 121. The support assembly 12 has a clearance opening 122 communicating with the telescopic cavity 121 on at least one side of the radial direction of the telescopic rod assembly 2. The first rotating wheel 4 passes through the corresponding clearance opening 122 and abuts against the telescopic rod assembly 2 within the telescopic cavity 121. The first rotating wheel 4 is arranged in the radial space of the telescopic rod assembly 2 to reduce the axial dimension of the first mounting sleeve 11 along the telescopic rod assembly 2.

[0085] It is understood that the support assembly 12 is not limited to having a clearance opening 122 communicating with the telescopic cavity 121 along the radial direction of the telescopic rod assembly 2. For example, the support assembly 12 is not provided with a clearance opening 122 communicating with the telescopic cavity 121 along the radial direction of the telescopic rod assembly 2, and the first rotating wheel 4 is located on the side of the support assembly 12 away from the telescopic cavity 121 along the first direction R1, and the first rotating wheel 4 abuts against the telescopic rod assembly 2 outside the telescopic cavity 121.

[0086] In some embodiments, please refer to Figure 3 , Figure 7 and Figure 8 The support assembly 12 includes a support rod 123 and a handle 124. The handle 124 is sleeved on the support rod 123. The handle 124 and the support rod 123 form a telescopic cavity 121. An avoidance opening 122 is formed in the handle 124.

[0087] For example, the support rod 123 is made of aluminum.

[0088] In this embodiment, the handle 124 allows the user to easily grip the support assembly 12 while pulling the telescopic rod assembly 2, and the handle 124 can shield and protect the end of the support rod 123.

[0089] In some embodiments, please refer to Figure 5 The first mounting sleeve 11 and the support assembly 12 form a mounting cavity 111. The first rotating wheel 4 and the one-way damper 5 are located inside the mounting cavity 111. The opening 112 of the mounting cavity 111 is located below the mounting cavity 111.

[0090] It should be noted that the mounting cavity 111 has cavity walls on all sides except the side with opening 112.

[0091] In this embodiment, the first mounting sleeve 11 and the support assembly 12 form a mounting cavity 111. The first rotating wheel 4 and the one-way damper 5 are located inside the mounting cavity 111. The opening 112 of the mounting cavity 111 is located below the mounting cavity 111. The first rotating wheel 4 and the one-way damper 5 are inserted into the mounting cavity 111 through the opening 112 for assembly. This can protect the first rotating wheel 4 and the one-way damper 5 and reduce the entry of external dust and debris into the mounting cavity 111, which may affect the operation of the first rotating wheel 4 and the one-way damper 5.

[0092] It is understood that the first mounting sleeve 11 is not limited to forming a mounting cavity 111 with the support assembly 12. Exemplarily, the first wheel 4 and the one-way damper 5 are exposed radially in the first mounting sleeve 11 along the telescopic rod assembly 2, and the first wheel 4 and the one-way damper 5 are exposed in the first mounting sleeve 11 along the second direction R2.

[0093] In some embodiments, please refer to Figures 1-4 The telescopic structure 10 also includes a first locking member 7, which is disposed on the main body 1. The telescopic rod assembly 2 passes through the first locking member 7. When the first locking member 7 is in the locked state, the first locking member 7 restricts the telescopic rod assembly 2 from telescopic movement. When the first locking member 7 is in the unlocked state, the telescopic rod assembly 2 can telescopically move relative to the main body 1.

[0094] For example, the first locking member 7 is located on the side of the first rotating wheel 4 away from the support rod 123 along the first direction R1.

[0095] For example, the first locking member 7 is connected to the first mounting sleeve 11.

[0096] For example, the first locking member 7 includes a locking ring 71 and a liner 72. The locking ring 71 surrounds a first locking cavity 711 and a first notch 712. The liner 72 is located inside the first locking cavity 711 and surrounds a second locking cavity 721 and a second notch 722. The telescopic rod assembly 2 passes through the second locking cavity 721, and the second notch 722 is exposed at the first notch 712.

[0097] For example, the liner 72 is a lubricating block.

[0098] For example, the liner 72 is POM plastic (polyoxymethylene resin).

[0099] For example, the locking ring 71 is connected to the first mounting sleeve 11.

[0100] For example, the locking ring 71 is integrally formed with the first mounting sleeve 11.

[0101] In this embodiment, the first locking member 7 is disposed on the main body 1, and the telescopic rod assembly 2 passes through the first locking member 7. When the first locking member 7 is in the locked state, the first locking member 7 restricts the telescopic rod assembly 2 from telescopic movement. When the first locking member 7 is in the unlocked state, the telescopic rod assembly 2 can telescopically move relative to the main body 1. By limiting the telescopic rod assembly 2 with the first locking member 7, it is beneficial to fix the telescopic rod assembly 2 relative to the main body 1 in the required position.

[0102] It is understandable that the telescopic structure 10 may not have a first locking element 7.

[0103] In some embodiments, please refer to Figure 1 and Figure 8 The telescopic rod assembly 2 includes a first telescopic rod 21 and a second telescopic rod 22. The first telescopic rod 21 is movably disposed on the main body 1, and the second telescopic rod 22 is movably disposed on the first telescopic rod 21 along a first direction R1. The first rotating wheel 4 abuts against the first telescopic rod 21 along the radial direction of the first rotating wheel 4. The first telescopic rod 21 moves telescopically to drive the first rotating wheel 4 to rotate.

[0104] For example, please refer to Figures 6-8 The telescopic structure 10 includes a damping component 8, which is disposed on the first telescopic rod 21. The damping component 8 includes a third rotating wheel 81 and a fourth rotating wheel 82. The third rotating wheel 81 and the fourth rotating wheel 82 respectively abut against the second telescopic rod 22 along the radial direction of the second telescopic rod 22. The second telescopic rod 22 moves telescopically to drive the third rotating wheel 81 and the fourth rotating wheel 82 to rotate. The fourth rotating wheel 82 is located on the side of the second telescopic rod 22 that is away from the third rotating wheel 81 along the radial direction of the second telescopic rod 22.

[0105] For example, the damping assembly 8 further includes a second unidirectional damper 5, which abuts against the third wheel 81 to limit the rotation of the third wheel 81.

[0106] For example, please refer to Figures 6-8 The damping assembly 8 also includes a second mounting shaft 83 and a second mounting sleeve 84. The second mounting sleeve 84 is connected to the first telescopic rod 21, and the second mounting shaft 83 is connected to the second mounting sleeve 84. The third rotating wheel 81 and the second one-way damping wheel are respectively sleeved on the second mounting shaft 83.

[0107] For example, the axial direction of the second mounting shaft 83 is parallel to the axial direction of the first mounting shaft 3.

[0108] In some embodiments, the telescopic structure 10 further includes a second locking member 9, which is disposed on the second mounting sleeve 84. The second telescopic rod 22 passes through the second locking member 9. When the second locking member 9 is in a locked state, it restricts the telescopic movement of the second telescopic rod 22 relative to the first telescopic rod 21. When the second locking member 9 is in an unlocked state, the second telescopic rod 22 can telescopically move relative to the first telescopic rod 21.

[0109] For example, the second locking member 9 is connected to the second mounting sleeve 84.

[0110] This application provides a lamp fixture; please refer to [link / reference]. Figures 6-8 The lamp includes a telescopic structure 10 and a lamp head 20, with the lamp head 20 located at one end of the telescopic rod assembly 2 away from the main body 1 along the first direction R1.

[0111] For example, the lamp head 20 is disposed at one end of the second telescopic rod 22 away from the main body 1 along the first direction R1.

[0112] In this embodiment of the application, the lamp includes a telescopic structure 10 and a lamp head 20. The lamp head 20 is disposed at one end of the telescopic rod assembly 2 away from the main body 1 along the first direction R1. The telescopic structure 10 drives the lamp head 20 to move along the first direction R1, so that the position of the lamp head 20 can be adjusted as needed.

[0113] In some embodiments, please refer to Figures 6-8 When the telescopic rod assembly 2 retracts relative to the main body 1 along the first direction R1, the telescopic rod assembly 2 drives the lamp head 20 to move downward, the first rotating wheel 4 rotates along the preset rotation direction R3, and the one-way damper 5 abuts against the first rotating wheel 4 to limit the rotation of the first rotating wheel 4 along the preset rotation direction R3.

[0114] For example, the first direction R1 is parallel to the up and down direction.

[0115] For example, the first direction R1 intersects the vertical direction and the horizontal direction.

[0116] In this embodiment, when the telescopic rod assembly 2 retracts relative to the main body 1 along the first direction R1 to drive the lamp head 20 downward, the first rotating wheel 4 rotates along the preset rotation direction R3, and the one-way damper 5 abuts against the first rotating wheel 4 to limit the rotation of the first rotating wheel 4 along the preset rotation direction R3. When the telescopic rod assembly 2 retracts along the first direction R1 and drives the main body 1 to descend, the one-way damper 5 can generate a large damping effect on the first rotating wheel 4, increasing the resistance of the telescopic rod assembly 2 retracting along the first direction R1, slowing down the descent speed of the lamp head 20, and reducing the possibility of the lamp head 20 hitting a person's hand. When the telescopic rod assembly 2 extends out of the main body 1 along the first direction R1 and drives the lamp head 20 upward, the one-way damper 5 basically does not generate a damping effect on the first rotating wheel 4 or generates a small damping effect on the first rotating wheel 4, making it convenient to pull the lamp head 20 upward. The telescopic structure 10 can adapt to the different needs of the lamp head 20 rising and falling, making it convenient for the use of the lamp. The resistance to the retraction of the telescopic rod assembly 2 and the descent of the lamp head 20 is mainly affected by the one-way damper 5. The pressure between the first rotating wheel 4 and the telescopic rod assembly 2 has little effect on the damping force of the one-way damper 5. The resistance to the telescopic movement of the telescopic rod assembly 2 has low requirements for the dimensional accuracy of the telescopic rod assembly 2, which can reduce the manufacturing difficulty of the telescopic rod assembly 2 and the assembly difficulty of the lamp, and help reduce the cost of lamp manufacturing and assembly.

[0117] It is understood that when the telescopic rod assembly 2 retracts relative to the main body 1 along the first direction R1, it is not limited to the telescopic rod assembly 2 causing the lamp head 20 to move downward. For example, when the telescopic rod assembly 2 retracts relative to the main body 1 along the first direction R1, the telescopic rod assembly 2 causes the lamp head 20 to move horizontally.

[0118] For example, the first direction R1 is perpendicular to the vertical direction.

[0119] In the description of this application, the terms "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0120] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A telescopic structure, characterized in that, include: main body; A telescopic rod assembly is movably disposed on the main body, the telescopic rod assembly being able to extend or retract relative to the main body, and the telescopic direction of the telescopic rod assembly being a first direction; A first mounting shaft is disposed on the main body, and the axial direction of the first mounting shaft is a second direction that intersects the first direction; A first rotating wheel is disposed on the first mounting shaft. The first rotating wheel rotates relative to the main body around the first mounting shaft. The first rotating wheel abuts against the telescopic rod assembly along the radial direction of the first rotating wheel. The telescopic rod assembly moves telescopically to drive the first rotating wheel to rotate. A one-way damper abuts against the first wheel to limit the rotation of the first wheel.

2. The telescopic structure according to claim 1, characterized in that, The unidirectional damper is a first unidirectional damping wheel, which at least partially rotates with the first wheel to provide damping force to the first wheel.

3. The telescopic structure according to claim 2, characterized in that, The first unidirectional damping wheel has a protrusion, and the first rotating wheel has a groove. The protrusion is located in the groove and abuts against the groove wall along the circumference of the first rotating wheel to rotate with the first rotating wheel.

4. The telescopic structure according to claim 2, characterized in that, The first one-way damping wheel is sleeved on the first mounting shaft, and the first one-way damping wheel is located on one side of the first rotating wheel along the second direction.

5. The telescopic structure according to any one of claims 1 to 4, characterized in that, The telescopic structure further includes a support member disposed on the main body. The support member is located on the side of the telescopic rod assembly that is radially away from the first rotating wheel. The support member abuts against the telescopic rod assembly radially, so that the telescopic rod assembly is spaced apart from the main body radially.

6. The telescopic structure according to claim 5, characterized in that, The support includes a rotating shaft and a second rotating wheel disposed on the rotating shaft. The rotating shaft is disposed on the main body. The second rotating wheel abuts against the telescopic rod assembly along the radial direction of the telescopic rod assembly. The telescopic rod assembly moves telescopically to drive the second rotating wheel to rotate.

7. The telescopic structure according to any one of claims 1 to 4, characterized in that, The main body includes a first mounting sleeve and a support assembly connected to each other. The first mounting shaft is connected to the first mounting sleeve. The first mounting sleeve is fitted onto the support assembly. The support assembly is fitted onto the telescopic rod assembly. The support assembly has a telescopic cavity. The telescopic rod assembly is partially located within the telescopic cavity and moves. The support assembly has a clearance opening on at least one side along the radial direction of the telescopic rod assembly that communicates with the telescopic cavity. The first rotating wheel passes through the clearance opening and abuts against the telescopic rod assembly within the telescopic cavity.

8. The telescopic structure according to claim 7, characterized in that, The first mounting sleeve and the support assembly form a mounting cavity, the first rotating wheel and the one-way damper are located inside the mounting cavity, and the opening of the mounting cavity is located below the mounting cavity.

9. The telescopic structure according to any one of claims 1 to 4, characterized in that, The telescopic structure further includes a first locking member, which is disposed on the main body. The telescopic rod assembly passes through the first locking member. When the first locking member is in a locked state, it restricts the telescopic movement of the telescopic rod assembly. When the first locking member is in an unlocked state, the telescopic rod assembly can move telescopically relative to the main body.

10. A lamp, characterized in that, include: The telescopic structure according to any one of claims 1 to 9; The lamp head is located at one end of the telescopic rod assembly that is away from the main body along the first direction.

11. The lamp according to claim 10, characterized in that, When the telescopic rod assembly retracts relative to the main body along the first direction, the telescopic rod assembly drives the lamp head to move downward, the first rotating wheel rotates along a preset rotation direction, and the one-way damper abuts against the first rotating wheel to limit the rotation of the first rotating wheel along the preset rotation direction.

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