CN216952716U - Slidable and rotatable connecting structure and lamp with same - Google Patents

Abstract

The utility model relates to a slidable and rotatable connecting structure and a lamp with the same. The shell is provided with a sliding chute; the movable seat is arranged in the chute; the rotating frame is rotatably arranged on the movable seat. The utility model realizes the rotation of the axis and the horizontal movement at the same time through the movable seat sliding in the chute and the rotating frame rotating on the movable seat, and has simple structure, low cost and convenient maintenance.

Description

Slidable and rotatable connecting structure and lamp with same

Technical Field

The utility model belongs to the technical field of mechanical connection structures, and particularly relates to a slidable and rotatable connection structure and a lamp with the structure.

Background

The prior art is directed at the desk lamp product on the market at present, and the pivot of most desk lamps can only rotate along the axle center, if want the horizontal migration of lamp holder can only be realized through the synthetic rotation of a plurality of pivots, have some desk lamps to realize carrying out the position adjustment of lamp holder when rotating through increasing two parallel connecting rods in the pivot, and the structure is more complicated.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a slidable and rotatable connecting structure and a lamp with the same, so as to solve the problem that the conventional table lamp cannot realize axial rotation and horizontal movement with a simple structure.

The utility model provides a slidable and rotatable connecting structure, comprising:

the shell is provided with a sliding chute;

a movable seat arranged in the chute;

and the rotating frame is rotatably arranged on the movable seat.

The technical scheme simultaneously realizes the rotation of the axis and the horizontal movement by a simple structure through the sliding movable seat and the rotation of the movable seat.

In some of these embodiments, further comprising:

and the auxiliary friction plate is arranged on the movable seat and is attached to the inner wall of the sliding groove.

This technical scheme provides the gliding damping of removal seat through supplementary friction disc.

In some embodiments, the auxiliary friction plate has a pin inserted into a first mounting hole formed in the movable seat. This technical scheme realizes the installation location of auxiliary friction piece through the bolt, guarantees the stability of the auxiliary friction piece in the slip process.

In some of these embodiments, further comprising:

and the adjusting screw is installed in the first installation hole in a threaded manner and abuts against the plug pin.

This technical scheme passes through adjusting screw and realizes the regulation of the frictional force size that the auxiliary friction piece provided.

In some of these embodiments, the mobile station comprises:

the shaft core is positioned on the seat body;

the sliding sleeve is sleeved on the seat body.

This technical scheme realizes removing the partition of seat, is convenient for change the sliding sleeve of changing wearing and tearing, reduces the structure maintenance cost.

In some embodiments, the sliding sleeve is provided with an assembling window, an auxiliary friction plate is arranged in the assembling window, and the seat body presses the auxiliary friction plate on the inner wall of the sliding chute. This technical scheme holds the auxiliary friction piece through windowing, makes the slip in-process auxiliary friction piece remain stable.

In some of these embodiments, further comprising:

and the limiting part is arranged in a second mounting hole formed in the moving seat, and one end of the limiting part is positioned in a positioning groove formed in the inner wall of the sliding groove.

According to the technical scheme, one end of the limiting part is clamped into the positioning groove, so that the movable seat is fixed.

In some embodiments, the position-limiting member is a spring plunger, the positioning member of the spring plunger is located in the positioning groove, and the positioning member is a positioning post or a positioning ball. This technical scheme fixes a position through spring plunger, and positioning groove can be deviate from to the setting element under the exogenic action, realizes removing the slip of seat.

In some embodiments, the positioning groove is arranged at intervals along the sliding groove. This technical scheme sets up a plurality of positioning groove through the slip direction along removing the seat, realizes removing the multiposition location of seat and fixes.

In some of these embodiments, further comprising:

and the guide strip is arranged on the inner wall of the sliding groove and is assembled in the guide groove formed in the movable seat.

This technical scheme leads through the conducting bar in the inside slip to removing the seat of spout, improves and removes the gliding stability of seat.

In some embodiments, the conducting bars have two, namely a first conducting bar and a second conducting bar;

the first guide strip is located on one side of the sliding groove, and the second guide strip is located on the bottom surface of the sliding groove.

This technical scheme is through two conducting bars at two planes of mutually perpendicular guide respectively and is removed the seat, further improves and removes the gliding stability of seat.

In some embodiments, the rotating frame is provided with a limiting pin, and the limiting pin is positioned in a limiting groove formed in the moving seat. According to the technical scheme, the limiting of the rotating angle of the rotating frame is realized through the matching of the limiting pin and the limiting groove.

In some embodiments, the movable base has an axis, and the rotating frame is mounted on the axis. This technical scheme realizes the rotation installation of action of rotating through setting up the axle center.

In some embodiments, the shaft core is axially provided with a threading hole. This technical scheme realizes wearing to establish of cable to it is smooth and easy to guarantee that the axle center rotates and horizontal migration.

In some of these embodiments, further comprising:

the fixing piece is arranged on the shaft core;

and the gasket is sleeved on the shaft core and pressed on the rotating frame by the fixing piece.

According to the technical scheme, the rotating frame and the shaft core are assembled by pressing the fixing piece and the gasket.

In some embodiments, the fixing member is a nut, the nut is screwed on the shaft core, and the washer is pressed on the rotating frame through screwing. This technical scheme realizes the pressure of packing ring through the nut of screwing and holds, simple structure, simple to operate.

In some of these embodiments, the gasket comprises:

the inner hole of the feedback washer is attached to a tangent plane arranged on the outer wall of the shaft core, a feedback protrusion is arranged on the surface of the feedback washer, and a feedback groove used for accommodating the feedback protrusion is arranged on the surface of the rotating frame.

According to the technical scheme, the feedback protrusion enters the feedback groove in the rotating process, and hand feeling feedback in the rotating process is realized.

In some of these embodiments, the cross-section of the feedback protrusion is trapezoidal, and the feedback groove is matched with the feedback protrusion. This technical scheme makes the bellied drop in of feedback and roll-off more smooth and easy through trapezium structure.

In some of these embodiments, the gasket comprises:

the inner hole of the conical elastic washer is attached to the tangent plane arranged on the outer wall of the shaft core;

and the positioning friction plate is connected with the rotating frame and used for following the rotating frame.

This technical scheme increases the compactness of location friction disc contact through having elastic packing ring to fully provide frictional force and produce the damping.

In some of these embodiments, the gasket further comprises:

the sliding friction plate is positioned between the conical elastic washer and the positioning friction plate, an inner hole of the sliding friction plate is attached to a tangent plane arranged on the outer wall of the shaft core, and an oil groove is formed in the surface of the sliding friction plate.

This technical scheme avoids elastic washer and location friction disc direct contact to produce wearing and tearing through the slip friction disc, can store lubricating oil simultaneously and guarantee to rotate smooth and easy nature.

The utility model provides a lamp which comprises a lamp holder, a lamp post, a lamp cap and the slidable and rotatable connecting structure, wherein the lamp post is arranged on the lamp holder, the lamp cap is arranged on a shell, and a rotating frame is arranged on the lamp post.

This technical scheme is applied to the lamps and lanterns with connection structure on, makes the lamp holder of lamps and lanterns can rotate and the sideslip, has realized higher regulation flexibility.

Based on the technical scheme, the embodiment of the utility model simultaneously realizes the rotation of the axis and the horizontal movement through the movable seat sliding in the sliding groove and the rotating frame rotating on the movable seat, has simple structure, low cost and convenient maintenance, and solves the problem that the current desk lamp can not realize the rotation of the axis and the horizontal movement with a simple structure.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a sectional view showing a connecting structure of the present invention which can slide and rotate;

FIG. 2 is an exploded view of the movable seat portion of the slidable and rotatable connection structure of the present invention;

FIG. 3 is an exploded view of the spacer portion of the slidable and rotatable connection structure of the present invention;

fig. 4 is an exploded view of the turret portion of the slidable and rotatable connection of the present invention.

In the figure:

1. a housing; 11. a chute; 12. an end cap; 13. a positioning groove;

2. a movable seat; 21. a base body; 22. a sliding sleeve; 23. a first mounting hole; 24. a second mounting hole; 25. assembling the window; 26. a guide groove; 27. a limiting groove;

3. a rotating frame; 31. a limit pin 3; 32. a feedback groove; 33. inserting slots;

4. a shaft core; 41. threading holes; 42. cutting into noodles;

5. an auxiliary friction plate; 51. a bolt;

6. an adjusting screw; 7. a limiting member;

8. conducting bars; 81. a first conducting bar; 82. a second conducting bar;

9. a fixing member;

10. a gasket; 101. a feedback washer; 102. a feedback projection; 103. a tapered resilient washer; 104. positioning the friction plate; 105. a support leg; 106. sliding the friction plate; 107. an oil groove.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

As shown in fig. 1 to 4, in an exemplary embodiment of the slidable and rotatable coupling structure of the present invention, the slidable and rotatable coupling structure includes a housing 1, a moving base 2, and a rotating frame 3. The housing 1 has a chute 11 disposed along its length with the ends closed by end caps 12. The moving seat 2 is installed in the chute 11 so as to be slidable along the chute 11. The turret 3 is rotatably mounted on the moving base 2 so as to be rotatable on the moving base 2.

In the above exemplary embodiment, the movable base 2 slides in the sliding groove 11, so that the housing 1 can move horizontally, and when the housing 1 is used as a lamp arm, the position of the lamp holder on the lamp arm in the length direction can be adjusted; the rotating frame 3 rotates on the moving seat 2, so that when the rotating frame 3 is connected with a lamp post, the shell 1 can swing by taking the rotating frame 3 as an axis, the height position of the lamp cap can be adjusted, the axis rotation and the horizontal movement are simultaneously realized by the connecting structure, the integral structure is simple, the assembly is convenient, the cost is low, the maintenance is convenient, and the problem that the axis rotation and the horizontal movement cannot be realized by a simple structure of the current desk lamp is solved.

In some embodiments, the connecting structure further comprises an auxiliary friction plate 5, and the auxiliary friction plate 5 is mounted on the movable seat 2 and attached to the inner wall of the sliding groove 11. The friction force generated by the contact between the auxiliary friction plate 5 and the sliding chute 11 provides resistance for the sliding of the movable seat 2 in the sliding chute 11, so that the horizontal movement has damping, and when the movable seat 2 is not acted by external force, the movable seat 2 can be kept still in the sliding chute 11, thereby maintaining the structural posture.

In some embodiments, the auxiliary friction plate 5 has a latch 51, and the latch 51 is inserted into the first mounting hole 23 formed in the movable seat 2. The first mounting hole 23 is used for limiting the plug pin 51 in the radial direction, so that when the movable seat 2 slides, the auxiliary friction plate 5 is kept synchronous with the sliding of the movable seat 2, and the auxiliary friction plate 5 is kept stable in the moving process and continuously provides stable friction force.

In some embodiments, the connecting structure further comprises an adjusting screw 6, which is threadedly mounted in the first mounting hole 23 and abuts against the plug 51. The adjusting screw 6 can be axially moved by rotating the adjusting screw. When the adjusting screw 6 moves towards the bolt 51, the adjusting screw 6 increases the pressure on the bolt 51, so that the pressure of the auxiliary friction plate 5 on the inner wall of the chute 11 is increased, the generated friction force is increased, and the damping effect is enhanced; when the adjusting screw 6 moves away from the plug 51, the pressure on the plug 51 is reduced, so that the friction force generated by the auxiliary friction plate 5 is reduced, and the damping effect is reduced. Realize the regulation of damping effect size through adjusting screw 6, under connection structure is in different bearing, can both keep the structure fixed when non-exogenic action.

In some embodiments, mobile seat 2 comprises a seat body 21 and a sliding sleeve 22. The shaft core 4 is located on the seat body 21, and the sliding sleeve 22 is sleeved on the seat body 21. The sliding sleeve 22 is located outside with its outer wall in sliding contact with the inner wall of the chute 11. The sliding sleeve 22 is more easily worn and can be replaced by detaching the sliding sleeve from the seat body 21, so that the whole movable seat 2 is not required to be replaced, and the maintenance is convenient.

In some embodiments, the sliding sleeve 22 is provided with a mounting window 25, and the auxiliary friction plate 5 is arranged in the mounting window 25. The seat body 21 presses the auxiliary friction plate 5 against the inner wall of the slide groove 11, so that the auxiliary friction plate 5 is held in close contact with the inner wall of the slide groove 11, providing a frictional force as a damper. The assembling window 25 limits the auxiliary friction plate 5 in the moving direction, keeps the auxiliary friction plate 5 and the moving seat 2 moving synchronously, and stably provides friction force.

In some embodiments, the connecting structure further comprises a stopper 7. The limiting member 7 is installed in the second installation hole 24 formed in the moving base 2, and one end of the limiting member 7 is located in the positioning groove 13 formed in the inner wall of the sliding groove 11, so that the positioning groove 13 limits the moving base 2 through the limiting member 7, and the stability of the moving base 2 during fixing is further improved. The shell 1 is pulled under the action of external force, the limiting piece 7 is separated from the positioning groove 13, and the movable seat 2 can slide in the shell 1.

In some embodiments, the stop 7 is a spring plunger. Spring plunger is also called bulb plunger, has the setting element that can axial displacement, and the spring is installed to inside, and the spring provides the pretightning force for the setting element. The positioning piece is a positioning bead or a positioning column, and the outer end of the positioning piece is positioned in the positioning groove 13. Because the outer end face of the positioning piece is a spherical surface, and the positioning piece can overcome the pretightening force provided by the spring, the positioning piece can be smoothly separated from the positioning groove 13 under the action of external force, so that the movable seat can be more smoothly restored to a sliding state. In addition, in the process of moving the moving seat 2, the resistance feeling generated when the positioning piece falls into the positioning groove 13 can provide hand feeling feedback for the sliding of the moving seat 2.

In some embodiments, the positioning grooves 13 are spaced along the sliding groove 11, so that the movable base 2 can be stably fixed at a plurality of positions by the wave ball screws 7, thereby improving the flexibility of use.

In some embodiments, the connection structure further comprises a conductive strip 8. The guide bar 8 is mounted on the inner wall of the slide groove 11 in the direction of movement of the movable base 2 and fits in a guide groove 26 provided in the movable base 2. The conducting bar 8 guides the sliding of the movable seat 2 in the sliding groove 11 through the guide groove 26, improves the stability of the movable seat 2 during sliding, and avoids the phenomenon that the movable seat 2 is rocked in the sliding process due to the overlarge assembly gap between the movable seat 2 and the sliding groove 11.

In some embodiments, the bar 8 has two bars, a first bar 81 and a second bar 82. The first guide bar 81 is located on one side of the slide groove 11, and the second guide bar 82 is located on the bottom surface of the slide groove 11. The two guide bars 81 guide the movable base 2 on two planes perpendicular to each other, respectively, further improving the stability of the movable base 2. In addition, first conducting bar 81 can carry on spacingly to removing seat 2, prevents to remove seat 2 and removes to the notch of spout 11 removal to deviate from spout 11.

In some embodiments, the rotating frame 3 has a limiting pin 31, and the limiting pin 31 is located in the limiting groove 27 formed in the moving seat 2. The stopper pin 31 moves in the stopper groove 27 as it rotates with the turret 3. The stopper groove 27 is formed in an arc shape, and restricts the movement range of the stopper pin 31 by its arc, thereby restricting the rotation angle of the rotating frame 3.

In some embodiments, the movable base 2 has a shaft core 4, the shaft core 4 is fixed, and the rotating frame 3 is sleeved on the shaft core 4, so as to rotate with the shaft core 4 as a shaft, thereby realizing the rotating installation of the rotating frame 3.

In some embodiments, the core 4 is axially provided with a threading hole 41. When the connecting structure is applied to a lamp, the cable can pass through the axis 4 through the threading hole 41 and then enter the shell 1 to supply power to a light source in a lamp holder connected with the shell 1.

In some embodiments, the connection structure further comprises a fixing member 9 and a washer 10. The fixing piece 9 is arranged on the shaft core 4, and the gasket 10 is sleeved on the shaft core 4. The fixing piece 9 presses the gasket 10 on the rotating frame 3, so that the rotating frame 3 is axially limited and is prevented from falling off the shaft core 4.

In some embodiments, the fastener 9 is a nut that is threadably mounted on the core 4. The washer 10 can be pressed on the rotating frame 3 by screwing the nut, and the fixing piece 9 is simple in structure and convenient to mount.

In some embodiments, the gasket 10 includes a feedback gasket 101. The inner bore of the feedback washer 101 abuts against a cut-out 42 provided on the outer wall of the spindle 4, so that the feedback washer 101 is held stationary by the cut-out 42. The feedback washer 101 has a feedback protrusion 102 on a surface thereof and the rotary rack 3 has a feedback groove 32 on a surface thereof. When the rotating frame 3 rotates, the feedback protrusion 102 generates resistance when entering the feedback groove 32, so that the feedback of the hand feeling of rotating in place can be provided.

In some embodiments, the cross section of the feedback protrusion 102 is trapezoidal, and the feedback groove 32 is matched with the feedback protrusion 102, so that both sides of the feedback groove 32 and the feedback protrusion 102 are in a slope shape, the feedback groove 32 does not generate too large obstruction to the movement of the feedback protrusion 102, and the smoothness of the rotation of the turret 3 is maintained while hand feeling feedback is generated.

In some embodiments, the washer 10 includes a tapered spring washer 103 and a locating friction plate 104. The positioning friction plate 104 is connected to the turret 3 so as to be rotatable with the turret 3. In order to realize the connection between the positioning friction plate 104 and the rotating frame 3, the two can adopt the connection modes such as insertion connection, bonding connection, magnetic attraction connection and the like. If the positioning friction plate 104 is connected with the rotating frame 3 in an inserting manner, the positioning friction plate 104 is provided with a supporting leg 105, and the supporting leg 105 is inserted into the slot 33 formed in the rotating frame 3, so that the positioning friction plate 104 and the rotating frame 3 can synchronously rotate; the legs 105 may also be provided on the turret 3 and the slots 33 on the positioning pads 104. The tapered elastic washer 103 is an elastic washer, and is tapered so as to be elastically deformable in the axial direction. The inner hole of the conical elastic washer 103 is attached to the cut surface 42 provided on the outer wall of the shaft core 4, and the conical elastic washer 103 is held by the cut surface 42. The conical elastic washer 103 generates elastic force under the pressing of the nut 9, closely clings to the positioning friction plate 104, and generates friction force as the damping of the rotation of the rotating frame 3.

In some embodiments, the washer 10 further includes a sliding friction plate 106. The inner hole of the sliding friction plate 106 is attached to the tangent plane 42 of the outer wall of the shaft core 4, and the sliding friction plate 106 is kept fixed through the tangent plane 42. The sliding friction plate 106 is positioned between the conical elastic washer 103 and the positioning friction plate 104 to separate the two, so that the conical elastic washer 103 is prevented from being worn, and the generated elastic force is ensured to be stable. The surface of the sliding friction plate 106 is provided with an oil groove 107 for containing lubricating oil, so that the relative rotation between the sliding friction plate 106 and the positioning friction plate 104 is ensured to be smooth, and the abrasion is reduced.

Based on the slidable and rotatable connecting structure, the utility model also provides a lamp, which comprises a lamp holder, a lamp post, a lamp cap and the slidable and rotatable connecting structure. The lamp holder is used as a base, the lamp post is arranged on the lamp holder, the lamp cap is arranged on the shell 1, the shell 1 is used as a lamp arm, the rotating frame 3 is arranged on the lamp post, the lamp arm can rotate and move in the horizontal direction, the height of the lamp cap and the position of the lamp cap in the horizontal direction are adjusted, the lamp cap can rotate and transversely move in a concise structure, and high adjusting flexibility is achieved.

Through the description of the embodiments of the slidable and rotatable connecting structure and the lamp with the structure, it can be seen that the slidable and rotatable connecting structure and the lamp with the structure have at least one or more of the following advantages:

1. the axial center rotation and the horizontal movement are simultaneously realized by a simple structure through the sliding moving seat and the rotation rotating on the axial center;

2. the sliding friction plate provides damping, the damping is adjustable, and the structure is flexible to use.

3. The glass bead screw is used for providing positioning fixation and positioning hand feeling, and the use experience is enhanced.

4. The stability of removing the seat is improved through the conducting bar to play spacing anticreep effect.

5. The hand feeling feedback of the rotation operation is realized through the feedback washer, and the use experience is enhanced.

6. Damping is provided by the gasket, and lubricating oil is contained to ensure smooth rotation.

Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims (19)

1. A slidable and rotatable connecting structure, comprising:

the shell is provided with a sliding chute;

the moving seat is slidably assembled in the sliding groove and is provided with a shaft core;

the rotating frame is arranged on the shaft core;

and the auxiliary friction plate is arranged on the movable seat and is attached to the inner wall of the sliding groove.

2. The connecting structure capable of sliding and rotating as claimed in claim 1, wherein the auxiliary friction plate has a pin inserted into a first mounting hole formed in the moving seat.

3. The slidable and rotatable connection structure of claim 2, further comprising:

and the adjusting screw is in threaded mounting in the first mounting hole and abuts against the plug pin.

4. The slidable and rotatable connection of claim 1, wherein the movable mount comprises:

the shaft core is positioned on the seat body;

the sliding sleeve is sleeved on the seat body.

5. The connecting structure capable of sliding and rotating as claimed in claim 4, wherein the sliding sleeve is provided with an assembling window, an auxiliary friction plate is arranged in the assembling window, and the seat body presses the auxiliary friction plate on the inner wall of the sliding groove.

6. The slidable and rotatable connection of claim 1, further comprising:

the limiting piece is arranged in a second mounting hole formed in the moving base, and one end of the limiting piece is located in a positioning groove formed in the inner wall of the sliding groove.

7. The connecting structure of claim 6, wherein the position-limiting member is a spring plunger, a positioning member of the spring plunger is located in the positioning groove, and the positioning member is a positioning post or a positioning ball.

8. The slidable and rotatable connecting structure as set forth in claim 6 or 7, wherein said positioning groove is provided in plurality at intervals along said slide groove.

9. The slidable and rotatable connection of claim 1, further comprising:

and the guide strip is arranged on the inner wall of the sliding groove and assembled in the guide groove formed in the movable seat.

10. The slidable and rotatable connection of claim 9 wherein the bar has two, first and second bars;

the first guide strip is located on one side of the sliding groove, and the second guide strip is located on the bottom surface of the sliding groove.

11. The connecting structure capable of sliding and rotating as claimed in claim 1, wherein the rotating frame has a limit pin, and the limit pin is located in a limit groove formed in the moving seat.

12. The connecting structure capable of sliding and rotating as claimed in claim 1, wherein the shaft core is axially provided with a threading hole.

13. The slidable and rotatable connection of claim 1, further comprising:

the fixing piece is arranged on the shaft core;

and the gasket is sleeved on the shaft core and pressed on the rotating frame by the fixing piece.

14. The slidable and rotatable connection of claim 13, wherein the fastener is a nut that is threadably mounted on the core and presses the washer against the turret upon tightening.

15. The slidable and rotatable connection of claim 13, wherein the washer comprises:

the inner hole of the feedback washer is attached to a tangent plane arranged on the outer wall of the shaft core, a feedback protrusion is arranged on the surface of the feedback washer, and a feedback groove used for accommodating the feedback protrusion is arranged on the surface of the rotating frame.

16. The slidable and rotatable connection of claim 15, wherein the feedback protrusion is trapezoidal in cross-section, and the feedback groove is matched to the feedback protrusion.

17. The slidable and rotatable connection of claim 13, wherein the washer comprises:

the inner hole of the conical elastic washer is attached to the tangent plane arranged on the outer wall of the shaft core;

and the positioning friction plate is connected with the rotating frame and used for following the rotating frame.

18. The slidable and rotatable connection of claim 17, wherein the washer further comprises:

the sliding friction plate is positioned between the conical elastic washer and the positioning friction plate, an inner hole of the sliding friction plate is attached to a tangent plane arranged on the outer wall of the shaft core, and an oil groove is formed in the surface of the sliding friction plate.

19. A lamp comprising a base, a stem, a cap and the slidable and rotatable connection of any one of claims 1 to 18, wherein the stem is mounted on the base, the cap is mounted on the housing, and the turret is mounted on the stem.

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