Table lamp lifting mechanism

Abstract

The utility model relates to the field of table lamps, in particular to a table lamp lifting mechanism. A table lamp lifting mechanism comprises an inner sliding rod and an outer sliding rod. The inner sliding rod and the outer sliding rod slide relatively; the table lamp lifting mechanism further comprises an inner frame and an outer frame. The inner frame is fixed to the inner sliding rod; the outer frame is fixed to the outer sliding rod; a rack is formed on the outer frame; a rail sliding groove is formed in the outer surface of the inner sliding rod. The rail sliding groove extends in the axial direction of the inner sliding rod. The rack is arranged in the rail sliding groove and slides along the rail sliding groove. An inner frame plastic elastic sheet capable of generating elastic deformation is formed on the inner frame; limiting teeth meshed with the rack are formed on the inner frame plastic elastic piece. The lifting table lamp has the advantage that the user experience feeling of lifting of the table lamp is good. The plastic elastic piece of the inner frame elastically deforms in the lifting process of the table lamp, continuous click sounds can be made, and clear sound texture of distance adjustment can be brought to a user. And the plastic elastic sheet of the inner frame can avoid over-speed sliding.

Description

Technical Field

[0001] This utility model relates to the field of desk lamps, and in particular to a desk lamp lifting mechanism. Background Technology

[0002] A desk lamp is a light fixture used on a desk to provide users with sufficient light when reading data or processing documents, so as to avoid eye strain or fatigue caused by insufficient light.

[0003] The lamp's height adjustment mechanism allows the lamp head to be raised or lowered. However, traditional lamp height adjustment mechanisms offer a relatively poor user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a table lamp lifting mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A desk lamp lifting mechanism includes: an inner slide rod and an outer slide rod; the inner slide rod and the outer slide rod slide relative to each other; the desk lamp lifting mechanism also includes an inner frame and an outer frame; the inner frame is fixed to the inner slide rod; the outer frame is fixed to the outer slide rod; the outer frame has a rack; the outer surface of the inner slide rod has a track groove; the track groove extends axially along the inner slide rod; the rack is disposed in the track groove and slides along the track groove; the inner frame has an inner frame plastic spring that can undergo elastic deformation; the inner frame plastic spring has a limiting tooth that meshes with the rack; when the user applies an external force to make the inner slide rod slide relative to the outer slide rod, the inner frame plastic spring undergoes elastic deformation, and the limiting tooth passes over the tooth on the rack; when there is no external force applied by the user to make the inner slide rod slide relative to the outer slide rod, the limiting tooth is inserted into two adjacent teeth on the rack.

[0007] As a further embodiment of this utility model: a table lamp lifting mechanism further includes: a locking mechanism for locking and unlocking the relative positions of the inner slide rod and the outer slide rod; the locking mechanism includes: a locking seat and a locking member; the locking seat is installed to the outer slide rod; the locking member is rotatably installed to the locking seat; the inner slide rod has a plurality of lock holes; the locking member has an unlocking part for the user to press and a latch for insertion into the lock hole; the unlocking part and the latch are located on both sides of the rotation axis of the locking member relative to the locking seat; the locking seat has a locking seat plastic spring for applying a force to the locking member to prevent the latch from disengaging from the lock hole; the locking seat plastic spring abuts against the locking member; when the user presses the unlocking part, the locking member rotates relative to the locking seat, applying a force to the locking seat plastic spring to cause elastic deformation of the locking seat plastic spring, and the latch is pulled out of the lock hole; when the unlocking part is not subjected to external force applied by the user, when the latch is aligned with the lock hole, the locking seat plastic spring pushes the locking member to rotate relative to the locking seat, and the latch is inserted into the lock hole.

[0008] As a further embodiment of this utility model: the locking seat forms a limiting part and a snap-fit ​​structure; the outer slide rod forms a mounting hole; the locking seat is inserted into the mounting hole from the outside of the outer slide rod, the limiting part abuts against the outer wall surface of the outer slide rod, and the snap-fit ​​structure hooks onto the inner wall surface of the mounting hole.

[0009] As a further embodiment of this utility model: the locking seat is arranged around the locking member; the snap-fit ​​structure formed by the locking seat is symmetrically arranged on both sides of the locking member.

[0010] As a further embodiment of this utility model: the outer frame has two racks; the outer surface of the inner slide rod has two track grooves; the two track grooves are symmetrically arranged on both sides of the inner slide rod; the inner frame plastic springs are arranged in pairs; the limiting teeth of the two inner frame plastic springs are respectively aligned with the racks on both sides.

[0011] As a further embodiment of this utility model: along the axial direction of the inner slide rod, the inner frame is formed with a plurality of paired inner frame plastic spring pieces.

[0012] As a further embodiment of this utility model: the outer frame includes: an integrally formed upper ring, a lower ring, and two racks; the upper ends of the two racks are connected to the upper ring; the lower ends of the two racks are connected to the lower ring; and the inner slide rod passes through the upper ring.

[0013] As a further embodiment of this utility model: the upper ring abuts against the end face of the outer slide rod; the lower ring is located inside the outer slide rod and is fixedly connected to the outer slide rod.

[0014] As a further embodiment of this utility model: the inner frame is fixed to the interior of the inner slide rod; the outer frame is fixed to the interior of the outer slide rod; the inner slide rod has an exposed groove for the limiting teeth to be exposed; the exposed groove is located at the bottom of the track slide groove.

[0015] As a further embodiment of this utility model: the inner frame plastic spring is located in the groove; the inner frame has a central through hole extending axially along the inner slide rod.

[0016] Compared with the prior art, the beneficial effect of this utility model is that the user experience of the adjustable desk lamp is better.

[0017] The inner frame's plastic springs elastically deform during the lamp's raising and lowering process, producing a continuous clicking sound that provides users with a clear tactile feedback when adjusting the distance. The inner frame's plastic springs also prevent excessive sliding.

[0018] The locking seat uses a plastic spring to reset the locking component, eliminating the need for an additional independent spring and resulting in a simple structure.

[0019] The symmetrically arranged external racks help maintain balance on both sides during lifting and lowering, avoiding tilting and wear problems caused by sliding on one side.

[0020] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a perspective view of a table lamp for which the lifting mechanism of this utility model is applicable;

[0022] Figure 2 yes Figure 1 A schematic diagram of the table lamp lifting mechanism of this utility model;

[0023] Figure 3 yes Figure 2 A schematic diagram of the inner slide bar of the lifting mechanism of the table lamp after it slides relative to the outer slide bar;

[0024] Figure 4 yes Figure 2 Right view of the lifting mechanism of the table lamp;

[0025] Figure 5 yes Figure 2 A sectional view of the lifting mechanism of the table lamp along line AA;

[0026] Figure 6 yes Figure 4 Cross-sectional view of the lifting mechanism of the table lamp along line BB;

[0027] Figure 7 yes Figure 2 A schematic diagram of the lifting mechanism of the table lamp after the outer slide bar has been removed;

[0028] Figure 8 yes Figure 7 Exploded view of the middle structure;

[0029] Figure 9 yes Figure 5 Enlarged view of a portion of the structure;

[0030] Figure 10 yes Figure 6 Enlarged view of a portion of the structure;

[0031] Figure 11 yes Figure 2 A schematic diagram of the locking mechanism of the table lamp lifting mechanism.

[0032] List of reference numerals in the attached drawings: table lamp lifting mechanism 100, inner slide bar 10, track slide groove 11, lock hole 12, outer slide bar 20, inner frame 30, inner frame plastic spring 31, limiting tooth 32, outer frame 40, rack 41, upper ring 42, lower ring 43, locking mechanism 50, locking seat 51, limiting part 511, buckle structure 512, locking seat plastic spring 513, locking part 52, locking tongue part 521, unlocking part 522. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 1 to 11 As shown, a desk lamp lifting mechanism 100 includes an inner slide rod 10 and an outer slide rod 20. The inner slide rod 10 and the outer slide rod 20 slide relative to each other. The desk lamp lifting mechanism 100 also includes an inner frame 30 and an outer frame 40. The inner frame 30 is fixed to the inner slide rod 10. The outer frame 40 is fixed to the outer slide rod 20. The outer frame 40 has a rack 41. The outer surface of the inner slide rod 10 has a track groove 11. The track groove 11 extends axially along the inner slide rod 10. The rack 41 is disposed in the track groove 11 and slides along the track groove 11. The inner frame 30 has an inner frame plastic spring piece 31. The inner frame plastic spring piece 31 is capable of elastic deformation. A limiting tooth 32 is formed on the inner frame plastic spring piece 31. The limiting tooth 32 engages with the rack 41. When the user applies an external force to make the inner slide bar 10 slide relative to the outer slide bar 20, the inner frame plastic spring 31 undergoes elastic deformation, and the limiting tooth 32 passes over the teeth on the rack 41. When there is no external force applied by the user to make the inner slide bar 10 slide relative to the outer slide bar 20, the limiting tooth 32 is inserted into two adjacent teeth on the rack 41.

[0035] In one specific embodiment, a desk lamp lifting mechanism 100 further includes a locking mechanism 50. The locking mechanism 50 is used to lock and unlock the relative positions of the inner slide bar 10 and the outer slide bar 20. The locking mechanism 50 includes a locking seat 51 and a locking member 52. The locking seat 51 is mounted to the outer slide bar 20. The locking member 52 is rotatably mounted to the locking seat 51. The inner slide bar 10 has a plurality of lock holes 12. The locking member 52 has a latch portion 521. The latch portion 521 is for the user to press an unlocking part 522 and for insertion into the lock holes 12. The unlocking part 522 and the latch portion 521 are located on opposite sides of the axis of rotation of the locking member 52 relative to the locking seat 51. The locking seat 51 has a locking seat plastic spring piece 513. The locking seat plastic spring piece 513 is used to apply a force to the locking member 52 to prevent the latch portion 521 from disengaging from the lock holes 12. The locking seat plastic spring piece 513 abuts against the locking member 52. When the user presses the unlocking part 522, the locking member 52 rotates relative to the locking seat 51, applying a force to the locking seat plastic spring 513, causing the locking seat plastic spring 513 to elastically deform, and the latch 521 is pulled out of the keyhole 12. When the unlocking part 522 is not subjected to external force applied by the user, when the latch 521 is aligned with the keyhole 12, the locking seat plastic spring 513 pushes the locking member 52 to rotate relative to the locking seat 51, and the latch 521 is inserted into the keyhole 12.

[0036] In one specific embodiment, the locking seat 51 has a limiting part 511 and a snap-fit ​​structure 512. The outer slide rod 20 has a mounting hole. The locking seat 51 is inserted into the mounting hole from the outside of the outer slide rod 20, the limiting part 511 abuts against the outer wall surface of the outer slide rod 20, and the snap-fit ​​structure 512 hooks onto the inner wall surface of the mounting hole.

[0037] In one specific implementation, the locking seat 51 is arranged around the locking member 52. The latching structure 512 formed by the locking seat 51 is symmetrically arranged on both sides of the locking member 52.

[0038] In one specific implementation, the outer frame 40 forms two racks 41. The outer surface of the inner slide rod 10 forms two track grooves 11. The two track grooves 11 are symmetrically arranged on both sides of the inner slide rod 10. The inner frame plastic spring pieces 31 are arranged in pairs. The limiting teeth 32 of the two paired inner frame plastic spring pieces 31 are respectively aligned with the racks 41 on both sides.

[0039] In one specific implementation, the inner frame 30 has several sets of inner frame plastic spring pieces 31 formed along the axial direction of the inner slide rod 10. The inner frame plastic spring pieces 31 are arranged in pairs.

[0040] In one specific implementation, the outer frame 40 includes an upper ring 42, a lower ring 43, and two racks 41. The upper ring 42 and lower ring 43 are integrally formed. The upper ends of the two racks 41 are connected to the upper ring 42. The lower ends of the two racks 41 are connected to the lower ring 43. The inner slide rod 10 passes through the upper ring 42.

[0041] In one specific implementation, the upper ring 42 abuts against the end face of the outer slide rod 20. The lower ring 43 is located inside the outer slide rod 20 and is fixedly connected to the outer slide rod 20.

[0042] In one specific implementation, the inner frame 30 is fixed to the interior of the inner slide bar 10. The outer frame 40 is fixed to the interior of the outer slide bar 20. The inner slide bar 10 has an exposed groove. The exposed groove allows the limiting tooth 32 to be exposed. The exposed groove is located at the bottom of the track slide groove 11.

[0043] In one specific implementation, the inner frame plastic spring 31 is located in the groove. The inner frame 30 has a central through hole. The central through hole extends axially along the inner slide bar 10.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A desk lamp lifting mechanism (100), comprising: The lamp lifting mechanism (100) comprises an inner slide rod (10) and an outer slide rod (20); the inner slide rod (10) and the outer slide rod (20) slide relative to each other; characterized in that the lamp lifting mechanism (100) further comprises an inner frame (30) and an outer frame (40); the inner frame (30) is fixed to the inner slide rod (10); the outer frame (40) is fixed to the outer slide rod (20); the outer frame (40) is formed with a rack (41); the outer surface of the inner slide rod (10) is formed with a track groove (11); the track groove (11) extends along the axial direction of the inner slide rod (10); the rack (41) is disposed in the track groove (11) and slides along the track groove. The groove (11) slides; the inner frame (30) is formed with an inner frame plastic spring (31) capable of elastic deformation; the inner frame plastic spring (31) is formed with a limiting tooth (32) that meshes with the rack (41); when the user applies an external force to make the inner slide rod (10) slide relative to the outer slide rod (20), the inner frame plastic spring (31) undergoes elastic deformation, and the limiting tooth (32) passes over the tooth on the rack (41); when there is no external force applied by the user to make the inner slide rod (10) slide relative to the outer slide rod (20), the limiting tooth (32) is inserted into two adjacent teeth on the rack (41).

2. The table lamp lifting mechanism (100) according to claim 1, characterized in that, The lamp lifting mechanism (100) further includes a locking mechanism (50) for locking and unlocking the relative positions of the inner slide rod (10) and the outer slide rod (20); the locking mechanism (50) includes a locking seat (51) and a locking member (52); the locking seat (51) is mounted to the outer slide rod (20); the locking member (52) is rotatably mounted to the locking seat (51); the inner slide rod (10) has a plurality of lock holes (12); the locking member (52) has an unlocking part (522) for the user to press and a latch (521) for inserting into the lock holes (12); the unlocking part (522) and the latch (521) are located on both sides of the rotation axis of the locking member (52) relative to the locking seat (51); the locking seat (51) has a mechanism for locking the locking member (52). A locking seat plastic spring (513) applies a force to prevent the locking tongue (521) from disengaging from the lock hole (12); the locking seat plastic spring (513) abuts against the locking member (52); when the user presses the unlocking part (522), the locking member (52) rotates relative to the locking seat (51), applying a force to the locking seat plastic spring (513) to cause elastic deformation of the locking seat plastic spring (513), and the locking tongue (521) is pulled out from the lock hole (12); when the unlocking part (522) is not subjected to external force applied by the user, when the locking tongue (521) is aligned with the lock hole (12), the locking seat plastic spring (513) pushes the locking member (52) to rotate relative to the locking seat (51), and the locking tongue (521) is inserted into the lock hole (12).

3. The table lamp lifting mechanism (100) according to claim 2, characterized in that, The locking seat (51) forms a limiting part (511) and a snap-fit ​​structure (512); the outer slide rod (20) forms a mounting hole; the locking seat (51) is inserted into the mounting hole from the outside of the outer slide rod (20), the limiting part (511) abuts against the outer wall surface of the outer slide rod (20), and the snap-fit ​​structure (512) hooks onto the inner wall surface of the mounting hole.

4. The table lamp lifting mechanism (100) according to claim 3, characterized in that, The locking seat (51) is arranged around the locking member (52); the latching structure (512) formed by the locking seat (51) is symmetrically arranged on both sides of the locking member (52).

5. The table lamp lifting mechanism (100) according to claim 1, characterized in that, The number of racks (41) formed by the outer frame (40) is two; the number of track grooves (11) formed on the outer surface of the inner slide rod (10) is two; the two track grooves (11) are symmetrically arranged on both sides of the inner slide rod (10); the inner frame plastic spring pieces (31) are arranged in pairs; the limiting teeth (32) of the two inner frame plastic spring pieces (31) are respectively aligned with the racks (41) on both sides.

6. The table lamp lifting mechanism (100) according to claim 5, characterized in that, Along the axial direction of the inner slide bar (10), the inner frame (30) is formed with a plurality of inner frame plastic springs (31) arranged in pairs.

7. A table lamp lifting mechanism (100) according to claim 5, characterized in that, The outer frame (40) includes: an integrally formed upper ring (42), a lower ring (43) and two racks (41); the upper ends of the two racks (41) are connected to the upper ring (42); the lower ends of the two racks (41) are connected to the lower ring (43); the inner slide rod (10) passes through the upper ring (42).

8. A table lamp lifting mechanism (100) according to claim 7, characterized in that, The upper ring (42) abuts against the end face of the outer slide rod (20); the lower ring (43) is located inside the outer slide rod (20) and is fixedly connected to the outer slide rod (20).

9. A table lamp lifting mechanism (100) according to claim 1, characterized in that, The inner frame (30) is fixed to the interior of the inner slide rod (10); the outer frame (40) is fixed to the interior of the outer slide rod (20); the inner slide rod (10) has an exposed groove for the limiting tooth (32) to be exposed; the exposed groove is located at the bottom of the track slide groove (11).

10. A table lamp lifting mechanism (100) according to claim 9, characterized in that, The inner frame plastic spring (31) is located in the groove; the inner frame (30) has a central through hole extending axially along the inner slide bar (10).

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