CN105889310A - Damping pivoting mechanism with limiting function and table lamp with damping pivoting mechanism - Google Patents

Abstract

The invention relates to a damping pivoting mechanism with a limiting function and a table lamp with the damping pivoting mechanism. The damping pivoting mechanism comprises a fixing component, a shaft lever, a pivoting component and an elastic component. The fixing component is suitable to be fixedly arranged on a first component; the shaft lever is provided with a positioning section and a threaded section, the end, which is far away from the threaded section, of the fixing section is fixedly connected with the fixing component, and a positioning component is arranged at the end, which is far away from the positioning section, of the threaded section; the pivoting component is suitable to be fixedly arranged on a second component and is in thread fit with the threaded section; the elastic component sleeves the threaded section, is positioned between the pivoting component and the positioning component and can axially move along the threaded section; the pivoting section can rotate on the threaded section and can axially press the elastic component when rotating, so that the elastic component can be elastically compressed. The damping pivoting mechanism and the table lamp have the advantages that friction force on the pivoting component in rotation procedures can be increased by elastic force provided by the elastic component, accordingly, damping effects can be improved, electronic equipment with the damping pivoting mechanism can be reliably folded or can reliably rotate, and problems of shaking and the like can be solved.

Description

Limitable damping pivot mechanism and desk lamp with it

technical field

The invention relates to a pivoting mechanism, in particular to a position-limiting damping pivoting mechanism and a desk lamp with it.

Background technique

With the continuous advancement of technology, more complex and more user-friendly electronic products are introduced. For example, in order to facilitate portability and angle adjustment, in the related art, many electronic products adopt a foldable or rotating manner. These foldable or rotatable electronic products generally include a first body, a second body and a pivot mechanism connected between the first body and the second body. After the first body and the second body are connected through the pivot mechanism, the Realize turning or folding.

However, the pivoting mechanism in the prior art generally uses the friction force between the structural parts as the rotational torque. It has a simple structure and a small volume, but at the same time, it has small damping. After turning to a certain angle, it cannot be firmly This position is prone to problems such as shaking.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a position-limited damping pivot mechanism.

Another object of the present invention is to provide a desk lamp with the position-limitable damping pivot mechanism.

To achieve the above object, on the one hand, the limitable damping pivot mechanism according to the embodiment of the present invention is used to pivotally connect the first component and the second component of the electronic device, including:

a fixing member adapted to be fixed to the first member;

A shaft, the shaft has a positioning section and a threaded section, the end of the positioning section away from the threaded section is fixedly connected to the fixing member, and the end of the threaded section away from the positioning section is provided with a positioning piece;

a pivoting piece, the pivoting piece is adapted to be fixed to the second member, and the pivoting piece is threadedly engaged with the threaded segment;

an elastic member, the elastic member is sleeved on the threaded segment and is located between the pivoting member and the positioning member, when the pivoting member rotates, the pivoting member rotates on the threaded segment And compress the elastic member in the axial direction, so that the elastic member is elastically compressed.

According to the limitable damping pivot mechanism provided by the present invention, the elastic member is sleeved on the threaded section of the shaft and is located between the pivoting member and the positioning member. When the pivoting member rotates, the pivoting member rotates on the threaded section and Compress the elastic member in the axial direction so that the elastic member is elastically compressed. In this way, the elastic force provided by the elastic member can increase the friction force received by the pivot member during the rotation process, thereby improving the damping effect. The limitable damping pivot can be applied. The folding or turning of the electronic equipment of the mechanism is more reliable, and problems such as shaking will not occur.

In addition, according to the above-mentioned embodiments of the present invention, the position-limiting damping pivot mechanism may also have the following additional technical features:

According to an embodiment of the present invention, also include:

a first wear-resistant sheet, the first wear-resistant sheet is sleeved on the threaded segment and located between the pivoting member and the elastic member;

The second wear-resistant sheet is sleeved on the threaded section and located between the elastic member and the positioning member.

According to an embodiment of the present invention, the cross-section of the threaded section is non-circular, the first wear-resistant sheet has a first assembly hole matching the cross-sectional shape of the threaded section, and the first wear-resistant The piece fits on the threaded segment through the interference fit of the first assembly hole;

The second wear-resistant sheet has a second assembly hole matching the cross-sectional shape of the threaded section, and the second wear-resistant sheet is interference-fitted on the threaded section through the second assembly hole.

According to an embodiment of the present invention, also include:

A limiting member, the limiting member is fixed on the positioning section, and the limiting member has a notch, and a protrusion extending into the notch is formed on the pivoting member in the axial direction, when When the pivot member rotates between the first position and the second position, the protrusion slides in the notch.

According to an embodiment of the present invention, the positioning section has a limiting portion with a non-circular cross section, the limiting member has a limiting hole matching the cross-sectional shape of the limiting portion, and the limiting The positioning member is interference-fitted on the limiting portion through the limiting hole.

According to an embodiment of the present invention, the positioning member is a nut, and the nut is threadedly engaged with an end of the threaded segment away from the positioning segment.

According to an embodiment of the present invention, the pivoting member includes:

A rotating sleeve, the rotating sleeve has a threaded hole threaded with the threaded section, and a storage cavity is formed on the side of the rotating sleeve adjacent to the elastic member, and the elastic member is accommodated in the receiving cavity;

A side cover, the side cover is provided with a through hole for the threaded section to pass through, and the side cover is fastened to the rotating sleeve and is located on the side of the rotating sleeve away from the elastic member.

According to an embodiment of the present invention, the swivel sleeve protrudes to the side away from the elastic member to form a card platform with a non-circular cross section, and the side cover is formed with a button that engages with the card platform A card slot that enables the side cover and the rotating sleeve to rotate synchronously.

On the other hand, the desk lamp provided by the embodiment of the present invention includes:

As mentioned above, the limitable damping pivot mechanism;

A base and a support arm, the base is fixed on the first component, and the support arm is connected to the second component.

According to the desk lamp provided by the present invention, it has the above-mentioned limitable damping pivot mechanism, the elastic member is sleeved on the threaded section of the shaft and is located between the pivot member and the positioning member, when the pivot member rotates, the pivot member Rotate on the segment and compress the elastic part axially so that the elastic part is elastically compressed. In this way, the elastic force provided by the spring can increase the friction force received by the pivoting part during the rotation process, thereby improving the damping effect. The base and support of the desk lamp The rotation between the arms is more reliable, and can be stably maintained at a certain angle without problems such as shaking.

According to an embodiment of the present invention, the first component has two opposite hinge parts, one of the two hinge parts has a third assembly hole with a non-circular cross section, and the cross section of the fixing part is the same as that of the fixed part. The third assembling hole is adapted and fits in the third assembling hole with an interference fit;

The second component has a rotating portion, the rotating portion has a fourth assembly hole with a non-circular cross section, the cross section of the pivoting member is adapted to the fourth assembly hole and is interference fit in the fourth assembly hole. In the fourth assembly hole mentioned above;

The rotating part has a positioning hole coaxial with the fourth assembly hole and has a circular cross section, and a positioning post is provided on the other of the two hinge parts, and the positioning post can pivotally set the in the positioning hole.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1 is an exploded view of a limitable damping pivot mechanism according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the overall structure of the limitable damping pivot mechanism of the embodiment of the present invention;

Fig. 3 is a schematic structural view of a pivoting member in a limitable damping pivot mechanism according to an embodiment of the present invention;

Fig. 4 is a schematic exploded view of the structure of the first component, the second component and the limitable damping pivot mechanism in the desk lamp of the embodiment of the present invention;

Fig. 5 is a schematic diagram of the overall structure of the first component, the second component and the limitable damping pivot mechanism in the desk lamp according to the embodiment of the present invention.

Reference signs:

A position-limiting damping pivot mechanism 100;

Fastener 10;

Shaft 11;

positioning section 111; limiting part 1111;

threaded segment 112;

pivoting member 12;

Rotating sleeve 121; threaded hole 1211; receiving cavity 1212; card table 1213;

side cover 122;

elastic member 13;

Positioner 14;

The first wear plate 15;

the first assembly hole 151;

The second wear plate 16;

the second assembly hole 161;

Limiting piece 17;

notch 171;

Limiting hole 172;

first member 200;

Hinge 2001, 2002;

Positioning hole 2003;

second member 201;

Turning part 2011;

The fourth assembly hole 2012;

Positioning Post 2013.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Referring to FIGS. 1 to 3 , an embodiment of the present invention provides a limitable damping pivot mechanism 100 for pivotally connecting a first member 200 and a second member 201 of an electronic device, such as a desk lamp. , electronic product brackets, notebook computers, etc., for desk lamps, the limitable damping pivot mechanism 100 can be used to connect the lamp holder and the support arm to form a relative rotational relationship, and then make the support arm rotate to adjust the position on the support arm. The angle of the lighting unit; the limitable damping pivot mechanism 100 can also be used to connect the support arm with the lighting unit to form a relative rotational relationship, so that the lighting unit can rotate to adjust the angle. As for the electronic product support, the position-limitable damping pivot mechanism 100 can be used to connect the support bar with the clamping head of the electronic product to form a rotational relationship, thereby realizing angle adjustment. For a notebook computer, the limitable damping pivot mechanism 100 can be used to connect the display part with the host part to form an openable and closable structure, thereby achieving the effect of opening and closing the display screen.

The limitable damping pivot mechanism 100 includes a fixing part 10 , a shaft 11 , a pivoting part 12 and an elastic part 13 .

Specifically, the fixing member 10 is adapted to be fixed to the first member 200 . That is to say, the fixing member 10 is suitable for fixing with a part of the electronic equipment, such as a lamp socket of a desk lamp. It should be noted that the structure of the fixing member 10 is selected according to the structure of the first member 200 in the electronic device. For different electronic devices, the fixing member 10 of different shapes and structures can be used, as long as the fixing member 10 is suitable for fixing on the first component 200. component 200.

The shaft 11 has a positioning section 111 and a threaded section 112, the end of the positioning section 111 away from the threaded section 112 is fixedly connected with the fixing member 10, and the end of the threaded section 112 away from the positioning section 111 is provided with a positioning piece 14. That is, one end of the shaft 11 is provided with a fixing part 10 , and the fixing part 10 is relatively fixed to the shaft 11 and can rotate synchronously with the shaft 11 , and the other end of the shaft 11 is provided with a positioning part 14 .

The pivoting member 12 is adapted to be fixed to the second member 201 , and the pivoting member 12 is threadedly engaged with the threaded segment 112 . That is to say, that is to say, the pivoting member 12 is adapted to be fixed with another part of the electronic device, such as a support arm of a desk lamp. It should be noted that the structure of the pivoting member 12 is selected according to the structure of the first member 200 in the electronic device. For different electronic devices, the pivoting member 12 of different shapes and structures can be used, as long as the pivoting member 12 is suitable for fixing Just on the second component 201 . At the same time, the pivoting member 12 is sleeved on the shaft 11 and threadedly engaged with the threaded section 112 . When the pivoting member 12 is rotated, the pivoting member 12 can move a certain distance in the axial direction on the shaft 11 .

The elastic member 13 is sleeved on the threaded section 112 and is located between the pivoting member 12 and the positioning member 14. When the pivoting member 12 rotates, the pivoting member 12 will Rotate upward and compress the elastic member 13 in the axial direction, so that the elastic member 13 is elastically compressed.

That is to say, the elastic member 13 is in a compressed state between the pivoting member 12 and the positioning member 14, and is used to provide an axial pressure acting on the pivoting member 12, so that the pivoting member 12 and the threaded section 112 and the elastic Frictional torque is generated between the parts 13. When the pivoting member 12 rotates (for example, clockwise), the pivoting member 12 moves a certain distance along the axial direction of the shaft 11 toward the elastic member 13. At this time, the elastic member 13 is further compressed, and the compression of the elastic member 13 The larger the amount, the greater the pressure provided by the elastic member 13 to the pivot member 12 , and the greater the friction torque between the pivot member 12 , the threaded section 112 and the elastic member 13 .

It can be understood that the elastic member 13 can be a disk spring or a pressure spring, which can be directly sleeved on the shaft 11, and can provide a relatively large elastic effect, thereby increasing the frictional torque.

In an application, when the first member 200 of the electronic device is fixedly connected to the fixing member 10 of the limitable damping pivot mechanism 100 , the second member 201 of the electronic device is connected to the pivot member 100 of the limitable damping pivot mechanism 100 After 12 are fixedly connected, a pivotable or foldable electronic device can be formed. In use, when the user applies force to the first member 200 or the second member 201, due to the relatively large frictional force between the pivoting member 12 and the shaft 11 and between the pivoting member 12 and the elastic member 13, The frictional force acts as a resistance when the user needs to rotate the first member 200 or the second member 201 , so the force exerted by the user must be greater than the above frictional force to promote the relative rotation of the first member 200 and the second member 201 .

At the same time, in the process of pushing the first member 200 and the second member 201 to rotate, the pivot member 12 rotates on the shaft 11 at a certain angle, and if the pivot member 12 rotates in one direction clockwise and counterclockwise, and Moving towards the direction close to the elastic member 13, the elastic member 13 is further compressed to provide a greater pressure acting on the pivot member 12, thereby increasing the above-mentioned frictional force. In this way, the gradually increasing frictional force can be used trend, so that the first member 200 and the second member 201 rotate to the maximum angle position, and at the maximum angle position, the friction force is the largest, so as to ensure that the first member 200 and the second member 201 can reliably stop at the minimum when they are opened. Any position between the included angle position and the maximum included angle position without problems such as shaking.

If the pivoting member 12 rotates clockwise and anticlockwise in another direction, and moves away from the elastic member 13, the amount of compression on the elastic member 13 will gradually decrease, and the pressure it provides on the pivoting member 12 will also decrease. decrease, and thus make the above-mentioned frictional force smaller. In this way, the trend of gradually decreasing friction force can be utilized, so that when the first member 200 and the second member 201 rotate from the maximum angle position to the minimum angle position, the friction force It is relatively smaller, which makes it easier and labor-saving. At the same time, since the first member 200 and the second member 201 are rotated from the maximum angle position to the minimum angle position, there is still a certain friction force, thereby ensuring that the first member can 200 and the second member 201 will not rotate quickly and cause problems such as damage to the first member 200 and the second member 201 .

According to the limitable damping pivot mechanism 100 provided by the present invention, the elastic member 13 is sleeved on the threaded section 112 of the shaft 11 and located between the pivot member 12 and the positioning member 14. When the pivot member 12 rotates, the pivot The member 12 rotates on the threaded section 112 and axially compresses the elastic member 13, so that the elastic member 13 is elastically compressed. In this way, the elastic force provided by the spring can increase the frictional force received by the pivoting member 12 during the rotation process, thereby improving Due to the damping effect, the folding or rotation of electronic equipment using the position-limiting damping pivot mechanism 100 is more reliable, and problems such as shaking will not occur.

Referring to FIG. 1, in one embodiment of the present invention, it also includes a first wear-resistant sheet 15 and a second wear-resistant sheet 16. The first wear-resistant sheet 15 is sleeved on the threaded section 112 and located on the pivot. Between the rotating member 12 and the elastic member 13 ; the second wear plate 16 is sleeved on the threaded section 112 and located between the elastic member 13 and the positioning member 14 .

That is to say, in this embodiment, a wear-resistant sheet is provided between the pivoting member 12 and the elastic member 13, and between the elastic member 13 and the positioning member 14. On the one hand, the first wear-resistant sheet 15 can increase the The friction force between the pivoting member 12 and the elastic member 13 is increased, and the friction force between the positioning member 14 and the elastic member 13 can be increased by the second wear-resistant sheet 16 . On the other hand, the elastic member 13 can be protected by the first wear-resistant sheet 15 and the second wear-resistant sheet 16, avoiding problems such as wear and tear caused by the direct contact of the elastic member 13 with the pivoting member 12 and the positioning member 14, and improving Its service life and the reliability and firmness of use.

Preferably, in an example of the present invention, the cross-section of the threaded segment 112 is non-circular, and the first wear plate 15 has a first assembly hole 151 matching the cross-sectional shape of the threaded segment 112 , The first wear plate 15 is interference-fitted on the threaded section 112 through the first assembly hole 151 . The second wear-resistant sheet 16 has a second assembly hole 161 matching the cross-sectional shape of the threaded section 112, and the second wear-resistant sheet 16 is interference-fitted on the threaded section through the second assembly hole 161. 112 on.

That is to say, the first wear-resistant sheet 15 and the second wear-resistant sheet 16 cooperate with the threaded section 112 of the shaft 11 through a non-circular hole, so that the first wear-resistant sheet 15 and the second wear-resistant sheet can 16 is relatively fixed to the shaft 11, and when the shaft 11 rotates, the first wear-resistant sheet 15 and the second wear-resistant sheet 16 rotate relatively. At the same time, the structure is simple and the assembly is convenient.

Referring to FIG. 1 , in some embodiments of the present invention, a limiting member 17 is also included, the limiting member 17 is fixed to the positioning section 111, and the limiting member 17 has a notch 171, the A projection extending into the notch 171 is formed on the pivoting member 12 axially protruding. When the pivoting member 12 rotates between the first position and the second position, the protrusion Slide in the gap 171.

That is to say, the protrusion can slide in the notch 171 on the limiter 17, the size of the notch 171 determines the sliding stroke of the protrusion, and the protrusion is fixed with the pivoting member 12, therefore, the protrusion is in the notch. The sliding stroke within 171 defines the angular range of the pivot member 12 rotating on the shaft 11, the maximum angular position is the first position, and the minimum angular position is the second position.

In this embodiment, the rotation angle of the pivoting member 12 is limited by the cooperation between the limiting member 17 and the pivoting member 12 .

It can be understood that the structure of the limiting member 17 is not limited thereto, and other structural forms can be used to cooperate with the pivoting member 12 , for example, when the groove structure is used instead of the notch 171 , the protrusion can slide in the groove. In addition, protrusions may also be provided on the limiting member 17 , while notches 171 or slide grooves may be provided on the pivoting member 12 , which are not listed here.

Referring to FIG. 1 , in one embodiment of the present invention, the positioning section 111 has a stopper 1111 with a non-circular cross section, and the stopper 17 has a cross-sectional shape similar to that of the stopper 1111 The matching limiting hole 172 , the limiting member 17 fits on the limiting part 1111 through the limiting hole 172 .

That is to say, the stopper 17 and the positioning section 111 of the shaft 11 are fixed through a non-circular hole. When the shaft 11 rotates, the stopper 17 can rotate synchronously with the shaft 11. Its structure is simple and easy to assemble. Convenient, relatively fixed and more reliable.

In a preferred embodiment of the present invention, the positioning member 14 is a nut, and the nut is threadedly engaged with the end of the threaded section 112 away from the positioning section 111 . That is to say, in this embodiment, a nut is used as the positioning member 14, and the nut can rotate on the threaded section 112 of the shaft 11, so that the position of the nut on the threaded section 112 can be adjusted by rotating the nut, and then the elastic member 13 can be adjusted. the amount of compression.

Specifically, if the nut is rotated so that the nut moves in a direction close to the elastic member 13, the distance between the pivot member 12 and the nut will be reduced, thereby causing the elastic member 13 to be compressed more, so that the elastic member 13 acts on the pivot The pressure on member 12 is greater, which in turn increases the frictional torque. If the nut is rotated so that the nut moves away from the elastic member 13, the distance between the pivot member 12 and the nut increases, thereby reducing the amount of compression of the elastic member 13. In this way, the elastic member 13 acts on the pivot member 12. The pressure is reduced, thereby reducing the friction torque. Thus, the user can turn the nut to adjust the frictional torque as needed. For example, if the first member 200 and the second member 201 of the electronic device need to be rotated more tightly, the nut can be rotated with a wrench or other tools so that the nut moves along the direction close to the elastic member 13. For example, if the first member 200 and the second member 201 of the electronic device need to be rotated more easily, the nut can be rotated with a wrench or other tools so that the nut moves away from the elastic member 13, which is more flexible and convenient to use. In addition, after using for a certain period of time, if the first member 200 and the second member 201 become loose due to wear, the loosening problem can also be solved by rotating the nut to move the nut toward the elastic member 13 .

Referring to FIG. 3 , in a specific embodiment of the present invention, the pivot member 12 includes a rotating sleeve 121 and a side cover 122 . The rotating sleeve 121 has a threaded hole 1211 threadedly engaged with the threaded section 112, and a receiving chamber 1212 is formed on the side of the rotating sleeve 121 adjacent to the elastic member 13, and the elastic member 13 is accommodated in the receiving chamber 1212 . For example, as shown in FIG. 1 , the elastic member 13 , the first wear-resistant sheet 15 and the second wear-resistant sheet 16 are all located in the receiving cavity 1212 .

The side cover 122 is provided with a through hole for the threaded section 112 to pass through, and the side cover 122 is fastened to the rotating sleeve 121 and located on a side of the rotating sleeve 121 away from the elastic member 13 . Correspondingly, protrusions can be formed on the side cover 122 .

That is to say, the rotating sleeve 121 is threadedly engaged with the threaded section 112 of the shaft 11 and can rotate on the threaded section 112 , while the side cover 122 is fixed on one side of the rotating sleeve 121 and can rotate differently with the rotating sleeve 121 . In this embodiment, the split rotating sleeve 121 and the side cover 122 are used as the pivoting member 12, which facilitates the production and processing of the pivoting member 12 and also facilitates the formation of protrusions. At the same time, the side cover 122 and the rotating sleeve 121 are fastened In this way, the fixing structure of the side cover 122 and the rotating sleeve 121 can be simplified.

More specifically, in order to realize the fastening between the rotating sleeve 121 and the side cover 122, in an example of the present invention, the rotating sleeve 121 protrudes to the side away from the elastic member 13 to form a non-circular cross-section The card platform 1213, the side cover 122 is formed with a card slot that engages with the card platform 1213 so that the side cover 122 and the rotating sleeve 121 can rotate synchronously. In this way, the rotation sleeve 121 can be engaged with the side cover 122 through the engagement of the engagement table 1213 with the engagement slot, and then realize synchronous rotation. The structure is simple, and the fixation is firm and reliable.

Referring to Fig. 4 to Fig. 5, the embodiment of the present invention provides a table lamp, including a base, a support arm and the limitable damping pivot mechanism 100 as described in the above embodiment, the base is fixed on the first member 200 , the support arm is connected to the second member 201 . In this way, the relative rotation between the support arm and the base can be realized by the rotation of the first member 200 and the second member 201 through the limitable damping pivot mechanism 100 .

In one embodiment of the present invention, the first member 200 has two opposite hinge parts 2001, 2002, one of the two hinge parts 2001 has a third assembly hole with a non-circular cross section, and the fixing member 10 The cross section of the cross section is adapted to the third assembly hole and is interference fitted in the third assembly hole. The second component 201 has a rotating portion 2011, the rotating portion 2011 has a fourth assembly hole 2012 with a non-circular cross section, the cross section of the pivoting member 12 is adapted to the fourth assembly hole 2012 and The interference fit fits in the fourth assembly hole 2012 . The rotating part 2011 has a positioning hole 2003 coaxially arranged with the fourth assembly hole 2012 and has a circular cross section, and a positioning post 2013 is provided on the other 2002 of the two hinge parts, and the positioning post 2013 can pivot Set in the positioning hole 2003.

Therefore, the first member 200 and the second member 201 can realize more stable and reliable rotation, thereby ensuring that the rotation of the base and the support arm is more stable and reliable after being respectively fixed to the first member 200 and the second member 201 .

The desk lamp provided according to the present invention has the above-mentioned limitable damping pivot mechanism 100, the elastic member 13 is sleeved on the threaded section 112 of the shaft 11 and is located between the pivot member 12 and the positioning member 14, when the pivot member 12 rotates At this time, the pivoting member 12 rotates on the threaded section 112 and compresses the elastic member 13 in the axial direction, so that the elastic member 13 is elastically compressed. In this way, the elastic force provided by the spring can increase the friction suffered by the pivoting member 12 during the rotation process. Force, thereby improving the damping effect, the rotation between the base of the table lamp and the support arm is more reliable, and can be stably maintained at a certain angle without shaking and other problems.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limitations to the present invention. Variations, modifications, substitutions, and modifications to the above-described embodiments are possible within the scope of the present invention.

Claims (10)

1. can a limit damping privot mechanism, for by the first component of electronic equipment and second component pivot Turn and connect, it is characterised in that including:

Fixture, described fixture is suitable to be fixedly held to described first component；

Axostylus axostyle, described axostylus axostyle has positioning section and thread segment, and described positioning section is away from the one of described thread segment Holding be connected fixing with described fixture, described thread segment is provided with positioning piece away from one end of described positioning section；

Pivotal part, described pivotal part is suitable to be fixedly held to described second component, and described pivotal part threaded engagement In described thread segment；

Elastic component, described elastic component is sheathed on described thread segment and is positioned at described pivotal part and described keeper Between can move axially along described thread segment, when described pivotal part rotates, described pivotal part is at described spiral shell Rotate in stricture of vagina section and oppress described elastic component vertically, so that described elastic component is elastically compressed.

The most according to claim 1 can limit damping privot mechanism, it is characterised in that also include:

First wear plate, described first wear plate is sheathed on described thread segment and is positioned at described pivotal part and bullet Between property part；

Second wear plate, described second wear plate is sheathed on described thread segment and is positioned at described elastic component and institute State between keeper.

The most according to claim 2 can limit damping privot mechanism, it is characterised in that described screw thread The cross section of section is non-circular, and the shape of cross section that described first wear plate has with described thread segment coordinates The first pilot hole, described first wear plate fits over described thread segment by described first pilot hole interference set On；

Described second wear plate has the second pilot hole that the shape of cross section with described thread segment coordinates, institute State the second wear plate to be fitted on described thread segment by described second pilot hole interference set.

The most according to claim 1 can limit damping privot mechanism, it is characterised in that also include:

Locating part, described locating part is fixed on described positioning section, and described locating part has a breach, institute State and axially projecting on pivotal part be formed with a projection extending in described breach, when described pivotal part exists When rotating between primary importance and the second position, described projection is slided in described breach.

The most according to claim 4 can limit damping privot mechanism, it is characterised in that described location It is non-circular limiting section that section has a cross section, and described locating part has and the cross section of described limiting section The spacing hole of form fit, described locating part is fitted on described limiting section by described spacing hole interference set.

The most according to claim 1 can limit damping privot mechanism, it is characterised in that described location Part is nut, and described nut thread is matched with described thread segment one end away from described positioning section.

The most according to claim 1 can limit damping privot mechanism, it is characterised in that described pivot Part includes:

Rotary sleeve, described rotary sleeve has and the screwed hole of described thread segment threaded engagement, and described rotation Putting and close on the side of described elastic component and be formed with a host cavity, described elastic component is contained in described host cavity；

Side cover, described side cover is provided with the through hole passed for described thread segment, and described side cover is fastened in institute State rotary sleeve and be positioned on described rotary sleeve the side away from described elastic component.

The most according to claim 7 can limit damping privot mechanism, it is characterised in that described rotation Putting and forming a cross section to the side protrusion away from described elastic component is non-circular chuck, described side cover On be formed and engage with described chuck so that described side cover and rotary sleeve can the draw-in grooves of synchronous rotary.

9. a desk lamp, its feature exists, including:

Can limit damping privot mechanism as according to any one of claim 1 to 8；

Base and support arm, described base is fixedly arranged on described first component, described support arm and described second Component is connected.

Desk lamp the most according to claim 9, it is characterised in that described first component has biphase To articulated section, it is non-circular 3rd pilot hole that articulated section described in two has cross section on one of them, institute State the cross section of fixture and described 3rd pilot hole is suitable and interference set is assigned in described 3rd pilot hole In；

Described second component has a rotation section, and it is non-circular 4th dress that described rotation section has cross section Distribution, the cross section of described pivotal part is suitable with described 4th pilot hole and interference set is assigned in the described 4th In pilot hole；

Described rotation section has and is coaxially disposed with described 4th pilot hole and cross section is circular hole, location, Another in articulated section described in two is provided with a locating dowel, and described locating dowel pivotably arranges described location In hole.