CN107542771B

CN107542771B - Second direction thickness reduction ball slide rail

Info

Publication number: CN107542771B
Application number: CN201610475614.4A
Authority: CN
Inventors: 请求不公布姓名; 夏勇
Original assignee: Taizhou Stronkin Electronic Co Ltd
Current assignee: Taizhou Stronkin Electronic Co Ltd
Priority date: 2016-06-24
Filing date: 2016-06-24
Publication date: 2024-03-12
Anticipated expiration: 2036-06-24
Also published as: CN107542771A

Abstract

The invention relates to a ball sliding rail with reduced thickness in a second direction, which is used for lifting a lifting module in a display support frame on a stand column, and comprises the following components: seen from the cross section, the U-shaped outer rail and the U-shaped inner rail are arranged, the U-shaped opening of the inner rail faces the U-shaped opening of the outer rail and extends into the U-shape of the outer rail, and gaps are kept between the U-shaped opening of the inner rail and the outer rail; two rows of balls respectively arranged between the inner rail and the outer rail and respectively arranged on two side surfaces of the inner rail; the corresponding bead frames are used for accommodating and spacing two rows of balls; the ball rack is in a shape of II instead of U, the corresponding II is two long thin plate-shaped partition plates, and the two partition plates are longitudinally provided with containing parts for containing and separating two rows of balls respectively; the upper top ends of the two partition boards of the bead frame in the longitudinal direction are mutually connected and form a stop part for blocking the upper top ends of the inner rail which ascends repeatedly. The display lifting support frame has the characteristic of being particularly thin in the second direction, and is used for requiring the upright post to be longer.

Description

Second direction thickness reduction ball slide rail

Technical Field

The invention relates to a ball sliding rail, in particular to a ball sliding rail which is used for supporting a lifting module in a lifting support frame for lifting relative to a stand column in a display (comprising a flat panel type, a monitor and a liquid crystal display, which are the same below).

Background

The ball type sliding rail has the advantages of small rolling friction resistance, smooth action, stable structure, few gaps among mutual moving parts, high moving rigidity and the like, and is widely applied to a relative sliding guide structure between a lifting module and a stand column in a lifting type support frame of a display. In recent years, along with the progress of the design of electronic product mechanisms and the change of aesthetic interests of people, more and more display support frames pursue the appearance of the upright posts with longer and longer appearance, and the key is that the two sliding rail appearance dimensions installed in the upright posts are smaller when seen from the cross section, and the dimensions of the sliding rail cross section appearance in two vertical directions are required to be smaller.

At present, the structure of the prior art closest to the present invention in the upright post of the lifting support frame of the display is as follows (the present specification adopts the names commonly used in the art for common parts and structures in the sliding rail, please note that the following are the same):

referring to fig. 1 and 2, the specific construction includes, in cross section, a generally U-shaped outer rail 1a, a generally U-shaped inner rail 2a, and a U-shaped opening portion of the inner rail 2a faces and extends into the U-shaped opening of the outer rail 1 a; two rows of balls 3a (each row of balls includes a plurality of balls, not shown in fig. 1, 3 a) respectively disposed between the inner rail 2a and the outer rail 1a and disposed on both outer sides of the inner rail 2a, and a corresponding substantially U-shaped ball frame 4a disposed between the outer rail 1a and the inner rail 2a for accommodating and spacing the two rows of balls 3a when viewed in cross section; obviously, the outer rail 1a forms a longitudinal guiding space as seen from the longitudinal direction due to the U-shape, so that the U-shape inner rail 2a can be accommodated therein, the outer rail 1a and the inner rail 2a are respectively provided with corresponding ball 3a guiding and loading raceways along the longitudinal direction on the wall surface contacted with the balls 3a, obviously, each sliding rail has four raceways which respectively form two rolling channels of the ball 3a together, so that the inner rail 2a and the outer rail 1a mutually move in a rolling way along the raceways through a plurality of balls 3a, thereby achieving the effect of reducing the resistance when the inner rail 2a and the outer rail 1a mutually move, and simultaneously achieving the effect of indirectly abutting against each other (achieving the relative lifting movement without gaps (only having degrees of freedom in the lifting direction) through the balls 3 a), and also meaning that the display connected with the sliding rail is not influenced by the defects of shaking and the like due to the gapless parts mutually moving when guided lifting.

Of course, here, two opposite sections of the bead frame 4a, which are open in a U-shape in cross section (corresponding to the remaining sections of the U-shape with the bottom sealing section being supposed to be removed, i.e., only the II-shaped sections on both sides of the U-shape) are respectively used for accommodating and spacing the two rows of balls 3a, and these two sections of the U-shape may also be referred to as (the present invention is specifically referred to for convenience of description and understanding, the prior art is a U-shape, and no separated state exists) partition plates 41a, and each partition plate 41a is provided with accommodating portions 411a (usually an incomplete round hole) corresponding to the number of balls in each row in the longitudinal direction for accommodating and holding the balls 3a in the accommodating portions 411a so as to avoid mutual collision interference (and also facilitate transportation assembly) when the balls 3a roll between them; the outer rail 1a and the inner rail 2a are respectively and fixedly connected with a stand column on the base of the display support frame and a lifting module which performs lifting movement, so that the lifting module of the display support frame can perform reciprocating linear displacement without shaking clearance along the guide path of the ball 3a slide rail relative to the stand column.

However, as also described above, the main part of the bead frame 4a in the ball slide rail of the prior art has a U-shaped structure which is approximately open in cross section, that is, the longitudinal side edges (the side edges at the innermost wall in the U-shaped opening adjacent to the outer rail 1 a) of the two partition plates 41a are connected together in an extending and bending manner (that is, the II-shaped integrated back cover is U-shaped in cross section), so that the two partition plates 41a are not suspended and separated into one body, and particularly, a stopper is also easily provided at the back cover; the stop is provided, which means that the bead frame 4a makes a stop structure (the stop structure is not shown in fig. 1 and 2) at the upper end of the path through which the inner rail 2a moves up and down, so that the bead frame 4a can collide with the inner rail 2a in a lifting motion and be forced by the inner rail 2a, when the bead frame 4a does not have the stop, the inner rail 2a is used for preventing the inner rail 2a from lifting back and forth in the outer rail 1a for many times, and after the bead frame 4a is added with the unavoidable asynchronism in the rolling process of the balls 3a due to the gravity reason, the whole bead frame 4a gradually falls down without being caught by the inner rail 2a, so that the number of the balls 3a which simultaneously abut against effectively is reduced, namely the overlapping degree of the bead frame 4a relative to the inner rail 2a is gradually reduced after the two relatively moves for many times, and obviously, the total number of the balls 3a which simultaneously participate in the collision and rolling work in the ball channel of the inner rail 2a and the outer rail 1a is correspondingly reduced, so that the movement rigidity of the sliding rail is necessarily affected, and the display is possibly unstable and shakes; the stop structure can force the ball 3a to return to the original position by touching the stop position of the bead frame 4a once when the inner rail 2a rises to the high point every time (the stop structure is usually arranged near the upper end when seen from the longitudinal direction of the bead frame 4a, and is formed by local stamping protrusions and the like when seen from the longitudinal direction of the bottom sealing part in the prior art).

However, the bead frame 4a of the prior art is also limited by the construction factor of the U-shaped middle back cover section, which causes the thickness of the sliding rail to be thicker along the U-shaped opening direction of the outer rail 1 (referred to as the second thickness direction or the second direction in the industry), because the steel plate portion of the back cover section of the bending connection has a thickness (because of the need for a certain strength), and particularly, the back cover section needs to be added with a gap in the second direction that has to be left for avoiding rubbing against the outer rail 1a and the inner rail 2a, so that it must occupy a certain thickness of the sliding rail in the second direction, which makes the thickness dimension of the sliding rail of the whole ball 3a still thicker in this direction, thereby limiting the application of the sliding rail in the lifting support frame of the display with a longer requirement of the upright (i.e. under the condition that the installation and accommodation are difficult), or in other words, the rigidity and the strength of the upright are lower under the same external condition (because the rigidity of the upright is lower, the rigidity is required to have more space for the upright to be filled with metal, and the rigidity cannot be increased for the rigidity of the upright if the appearance of the sliding rail is large in various directions).

Therefore, in general, the thickness of the ball sliding rail in the second direction is still thicker, and when the appearance of the upright is required to be longer or the appearance of the upright is not changed and the strength and rigidity of the upright are required to be higher, the application of the ball sliding rail in the prior art is still greatly limited, so that the ball sliding rail is not suitable for the display lifting support frame product with the appearance required to be longer. Therefore, the improvement of the ball sliding rail in the second direction by the thickness reduction of the conventional structure makes the conventional ball sliding rail applicable to display supporting frames with longer and longer upright posts, i.e. expands the application range of the ball sliding rail, which is one of the important problems to be solved in the industry.

Disclosure of Invention

The invention mainly aims to provide a ball sliding rail with smaller and thinner thickness in the second direction, so that the defect that the ball sliding rail in the prior art is thicker in the second direction is overcome, and the ball sliding rail can be applied to a display supporting frame with a longer upright post requirement or when the upright post is required to have higher strength and rigidity under the condition that the appearance of the upright post is not changed.

The invention is realized by adopting the following technical scheme:

a second direction thickness reduction's ball slide rail for lift module's lift is with slide rail on stand in display support frame, includes: the device comprises an outer rail and an inner rail, wherein the outer rail is U-shaped in cross section, the U-shaped opening part of the inner rail faces to and stretches into the U-shaped opening of the outer rail, and gaps are kept between the U-shaped opening part and the outer rail; two rows of balls which are respectively arranged in gaps between the inner rail and the outer rail and are abutted against the two outer side surfaces of the inner rail; the corresponding bead frames are used for accommodating and separating the two rows of balls; the bead rack is in a shape like a II instead of a U, the corresponding object of the shape like the II is two long thin plate-shaped partition plates, and the two partition plates are longitudinally provided with containing parts for containing and separating the two rows of balls respectively; the upper top ends of the two spacing plates in the longitudinal direction of the bead frame are mutually connected and form a stop part which can be contacted by the upper top ends of the inner rails which rise up and down.

Further, the stop part is formed by bending and extending the two spacing plates at the upper top ends towards the side of the opposite side and interconnecting the two spacing plates; the stop part and the two spacing plates are integrally formed plastic parts or integrally formed metal plate stamping parts.

Further, the stop part is formed by clamping a perforated spacer between the upper top ends of the two partition plates and riveting the two partition plates with rivets.

Further, the stop portion is formed by riveting two partition plates between the upper top ends through rivets with two shoulders.

Further, the stop part further comprises a U-shaped plate body-shaped bridging bent plate, the bridging bent plate is arranged between the upper top ends of the two spacing plates, and two ends of the bridging bent plate and the two spacing plates are respectively riveted and fixedly connected by a rivet to form the stop part.

Further, the stop part is formed by extending the two spacing plates towards the side direction of the opposite side at the upper top end to enable the two spacing plates to be overlapped up and down, welding or arranging a rivet hole at the overlapped position, and then riveting and fixedly connecting the two spacing plates in the up and down direction by using a rivet.

Further, the inner rail is provided with at least one connecting screw hole and/or through hole for connecting the lifting module; the stop part and the two spacing plates are integrally formed plastic parts or integrally formed metal plate stamping parts.

Further, each accommodating portion on the partition board is a hole with a diameter larger than that of the ball, and each hole edge is respectively provided with at least two buckling members which are bent and extended integrally towards the surfaces of the accommodated ball on the two side plate surfaces of the partition board, so that each ball is held in the corresponding accommodating portion.

Further, the outer rail, the inner rail and the partition plate are all integrally stamped metal plates.

Further, along a second direction, the innermost wall of the U-shaped opening of the outer rail is spaced from the adjacent longitudinal edge of each of the spacer plates and the adjacent longitudinal edge of the inner rail by a distance of less than 3 mm; the width of the spacing plate is smaller than 6 mm.

The invention has the advantages that the mode of a bead frame structure with a U-shaped cross section in the prior art is broken through, namely, the bead frame is changed into a II type from the U-shaped cross section of the bead frame, the U-shaped curved bottom sealing section of the original bead frame is omitted, namely, only the remained two partition plate parts are reserved, the curved bottom sealing parts which are mutually connected with the longitudinal side edges of the two partition plates are removed, the thickness of the second direction is reduced due to the fact that the thickness of the bottom sealing section is not needed, and the size gap between the bead frame and the inner rail and the outer rail is not needed to be considered, so that the thickness of the bead frame in the second direction is reduced, the size of the original U-shaped bead frame structure in the second direction of the sliding rail is obviously reduced, and meanwhile, the requirement of retaining the stop structure is well solved by transferring the setting position of the stop structure, namely, the stop structure is changed into a stop part formed by mutually connecting at least the upper top ends of the two longitudinal top ends of the two partition plates, and the structure is simpler; therefore, under the condition that the other thickness direction is unchanged, the sliding rail with the thickness in the second direction is also very thin, and the rolling ball type sliding rail is suitable for being used for a display supporting frame with the appearance of the stand column being required to be longer or for being increased in rigidity and strength as required, so that the application range of the rolling ball type sliding rail is greatly increased, the supporting frame product is more attractive and longer, and the requirements of people pursuing fashion and aesthetic interests are met. The bead frame has the advantages that the bead frame is simpler in structure, the original bent connecting long section with longer longitudinal side edges of the partition plate is omitted, other parts of the whole sliding rail such as an outer rail and an inner rail are correspondingly reduced due to the reduction of the size of the bead frame, and the material consumption is also reduced; the slide rail is simpler and more convenient to manufacture and has lower cost.

For a further understanding of the nature and the technical aspects of the present invention, reference should be made to the following detailed description of the invention and to the accompanying drawings, which are provided for reference and illustration only and are not intended to limit the invention.

Drawings

FIG. 1 is a schematic perspective view of a prior art ball slide;

FIG. 2 is a schematic sectional view of a prior art ball slide;

FIG. 3 is a schematic cross-sectional view of a ball slide of the present invention;

FIG. 4 is a perspective view of a ball slide assembly according to the present invention;

FIG. 5 is an exploded perspective view of the ball slide of the present invention;

FIG. 6 is a schematic cross-sectional view of a first combination of stops in a ball track according to the present invention;

FIG. 7 is a schematic cross-sectional view of a second combination of stops in a ball track according to the present invention;

FIG. 8 is a schematic cross-sectional view of a third combination of stops in a ball track according to the present invention;

fig. 9 is a schematic cross-sectional view of a fourth combination structure of a stopper in a ball sliding rail according to the present invention.

Symbol description

The prior art comprises the following steps:

1a outer rail

2a inner rail

3a ball

4a bead rack

41a partition plate

411a accommodating portion

The invention comprises the following steps:

1 outer rail

2 inner rail

3 ball

4-bead frame

41 partition board

411 accommodating portion

42 stops.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings, which are incorporated herein by reference.

It should be noted that, the structures, proportions, sizes, etc. shown in the drawings are merely used in conjunction with the disclosure of the present specification, and are not intended to limit the applicable limitations of the present invention, so that any modification, proportional relationship, change of direction, or adjustment of size of the structures, proportions, etc. should not be regarded as technically essential, and should still fall within the scope of the disclosure of the present invention without affecting the efficacy and achievement of the present invention. Similarly, it should be noted that terms or contents related to directions such as "upper", "lower", "front", "rear", "left", "right", "longitudinal", "cross section", etc. in this specification refer to a general orientation of each element when the element is used normally when the drawing is seen from the direction of the display screen facing the operator, and also include "one", etc. are merely for convenience of description, and are not intended to limit the scope of the present invention, and any suitable change or adjustment of the relative relationship thereof, without substantial technical content modification, includes various modifications and alterations, etc. and should also be regarded as the scope of the present invention which is protected.

For ease of understanding, please refer to fig. 3-9 and focus on fig. 3, 5. The invention provides a ball sliding rail with reduced thickness in a second direction, which is used for lifting a lifting module in a display support frame on a stand column, and comprises the following components: an outer rail 1 (the cross section is similar to the U-shaped cross section of a sliding rail, obviously, a containing space for containing the lifting movement of an inner rail 2 is formed along the longitudinal direction, the outer rail 1 is stamped or rolled by steel plates, and other known techniques are that the steel plates at the two longitudinal ends of the outer rail 1 are partially bent to the containing groove side by a small section of approximately 90 degrees for blocking the moving inner rail 2 from falling off, and meanwhile, a plurality of threaded holes or unthreaded holes are arranged on the longitudinal long surface of the side of the U-shaped back cover section of the outer rail 1 for being fixedly connected with a column of a lifting support frame), and the U-shaped opening part of the inner rail 2 faces the U-shaped opening of the outer rail 1 (the two parts are opposite to each other) and extends into the U-shaped opening of the outer rail 1 and keeps a gap (for preventing the friction collision due to the relative movement of the two parts); two rows of balls 3 (namely, the balls 3 are divided into two rows along the longitudinal direction, each row of balls 3 comprises a plurality of balls 3, the balls 3 are steel balls) which are respectively arranged in the gaps between the inner rail 2 and the outer rail 1 and are abutted against each other, and the two rows of balls are respectively arranged between two pairs of mutually overlapped but spaced opposite surfaces of the U-shaped inner rail 2 and the U-shaped outer rail 1 when seen from the cross section of the sliding rail, of course, the abutting surfaces of the inner rail 2 and the outer rail 1 and the balls are respectively provided with a raceway for the balls to roll and guide and bear uniform force along the longitudinal direction; it is characterized in that the bead frame 4 is shaped like a letter II (approximately, also seen in cross section) rather than a letter U, the counterpart of the letter II is a two-long sheet-shaped (i.e. long sheet-shaped seen in longitudinal direction) spacer 41 (this is quite different from the bead frame structure of the prior art, which is shaped like a letter U rather than a letter II seen in cross section, i.e. the bead frame is integrally connected with the longitudinal side edges of the bead frame at the innermost wall surface in the opening of the letter U adjacent to the outer rail, obviously, the back cover section of the letter U of the bead frame 4 needs to have a certain thickness due to the strength and rigidity, and the back cover section needs to be avoided and prevented from touching by the inner rail and the outer rail, this means that the dimension of the bead frame 4 in the second direction of the sliding rail is larger, and the bead frame 4 is II-shaped, and has no back cover section, so that only the outer rail 1 needs to leave a safety gap that is not contacted with the inner rail 2, and two occupied dimensions of the second direction thickness are omitted, so that the sliding rail is thinner in the thickness direction) (the spacing plate 41 can be formed by stamping long strip-shaped thin steel plates or integrally formed by plastic parts, and is respectively adjacent between two outer side walls of the inner rail 2 and opposite inner side walls of the outer rail 1), and the two spacing plates 41 are respectively provided with containing parts 411 (the total number of containing parts on the two spacing plates 41 is respectively corresponding to the number of the two rows of balls 3) for containing and spacing the two rows of balls 3 along the longitudinal direction; the upper ends of the two partition plates 41 of the bead frame 4 in the longitudinal direction (the sliding rails are installed substantially vertically, so that there is a vertical division) are connected to each other (thus, the upper ends of the two partition plates 41 can be directly bent and integrated with each other or indirectly connected with each other through another bridge, after being connected to each other, the overall appearance of the bead frame 4 is substantially inverted U-shaped), and a stop portion 42 is formed, which is contacted by the upper ends of the inner rail that can be reciprocally lifted (so that the upper ends of the inner rail 2 that can be reciprocally lifted and lowered are always contacted, and the bead frame 4 is forced to follow the inner rail 2 upwards, so that the problems of gradual dropping and step-out after a plurality of reciprocations due to dead weight of the bead frame 4 and sometimes asynchronous rolling of the balls 3, etc. are not caused, the effective working balls quantity is reduced, and the rigidity of the sliding rail movement is even not working, etc. obviously, the partition plates 41 and the stop portion 42 can be integrally formed by punching a long thin steel plate or plastic member.

Further (please also focus on fig. 6), the stop portion 42 is formed by bending and extending two spacer plates 41 on the upper top ends (as mentioned above, the uppermost top end should be selected obviously from the top ends of the lifting type display support frame as the stop effect) towards the opposite side and interconnecting them together (that is, the spacer plates 41 and the stop portion 42 may be integrally formed by stamping long thin steel plates or integrally injection molding plastic pieces, the overall appearance of the bead frame 4 is approximately inverted U-shaped as seen in the longitudinal direction, and the lower top ends may also be connected in a mouth shape as well, so as to improve the rigidity of the bead frame 4); the stop portion 42 and the two partition plates 41 are integrally formed plastic members or integrally formed sheet metal stamping members (the overall appearance is approximately inverted U-shaped); the method does not need extra parts and has simple structure.

Further (please refer to fig. 7 with emphasis, note that the hole of the receiving portion 411 is not shown), the stop portion 42 is formed by sandwiching a perforated spacer between the upper ends of the two partition plates 41 and riveting them with rivets (the perforated spacer has a very simple structure, such as a perforated washer, and the thickness of the washer is not enough, and several compound thickenings can be provided and clamped between the upper ends of the two partition plates 41. Of course, the corresponding holes are provided at the corresponding connection portions of the two partition plates 41 and are riveted together by means of rivets, obviously, the overall appearance of the bead frame 4 after the connection of the partition plates 41 and the stop portion 42 is still approximately inverted U-shaped, and the strength of the stop portion 42 is higher by this method, and of course, the bead frame can also be fixedly welded.

Further (please refer to fig. 8 with emphasis, note that the hole of the accommodating portion 411 is not shown), the stop portion 42 is riveted between the upper ends of the two spacer plates 41 by rivets with two shoulders (this is another stop portion connecting structure formed by fixedly connecting the two upper ends of the two spacer plates in a sectionally rather than integrally forming manner; the spacer plates with holes can be omitted, and a specially made rivet with two ends capable of being riveted is adopted; before riveting, the middle of the rivet is thick and thin, the rivet forms two shoulder surfaces near the two ends, the two spacer plates 41 are abutted against the shoulder surfaces (rivet holes are formed at the corresponding connection positions of the spacer plates 41 and are sleeved on the thin portions of the two ends of the rivet to be riveted together); the structure of the stop portion 42 is somewhat simple and the strength is relatively high.

Further (please refer to fig. 9 with emphasis, note that the hole of the receiving portion 411 is not shown), the stop portion 42 further includes a U-shaped plate-shaped bridging curved plate (the U-shape is obviously inverted in an inverted U-shape, and functions are similar), the bridging curved plate is disposed between the upper ends of the two partition plates 41, two ends of the bridging curved plate and the two partition plates 41 are respectively riveted and fastened by a rivet to form the stop portion 42 (the bridging curved plate is equivalent to a curved beam or a curved bridge plate with two ends having a connecting ear hole, of course, correspondingly, a rivet hole is correspondingly disposed on each ear and the top end of the corresponding partition plate 41 for rivet riveting, and obviously, welding and fastening can also be performed).

Further, the stopper 42 is formed by extending the upper ends of the two partition plates 41 toward each other (the outer shape corresponds to the respective upper ends of the two partition plates 41 being bent 90 ° toward each other for a length of a length) so that the two partition plates overlap each other vertically, welding or forming a rivet hole at the overlapping portion, and then fastening the two partition plates by riveting the two partition plates vertically (obviously, fastening by a welding method such as spot welding is also possible, and the structure is relatively simple, so the drawings are not shown).

Obviously, the connection method and structure of the top ends of the two partition plates can be varied, and the method is not limited to the above methods, so that other known methods for connecting the two partition plates to each other can be adopted; by means of the connection, the bead holder 4 can be integrated and at the same time a stop 42 is formed.

Further, the inner rail 2 is provided with at least one connecting screw hole and/or through hole for connecting the lifting module (i.e. a plurality of screw holes and/or light holes are longitudinally arranged at the U-shaped back cover section of the inner rail 2 to facilitate connection of the lifting module, and the specific shape, structure, number and the like of the holes can be appropriately adapted and changed according to the requirement of interconnection); the stop portion 42 and the two partition plates 41 are integrally formed plastic members or integrally formed sheet metal stamping members.

Further, each receiving portion 411 of the partition 41 is a hole (the diameter is only slightly larger than the diameter of the balls 3), the shape of the hole is not necessarily a complete circle, as long as the main portion is a circle, each edge of the hole forms at least two retaining members (not shown) integrally bent and extended (slightly extended) toward the surface of the received balls 3 on the two sides of the partition 41 (2 retaining members are respectively arranged on the two sides of the partition 41 where the hole is located and are preferably arranged separately on the diameter of the hole so that the sphere of the retained balls 3 does not drop), so that each ball 3 is retained in the corresponding receiving portion 411 (the principle is that the retaining members locally generate slight elasticity, namely, the balls 3 can be mounted in the holes of the receiving portion 411 with slight force, and at the same time elastically abut the balls 3 themselves and cannot fall off after the surfaces of the balls 3 are mounted in the holes) (the two sides of the partition 41 are preferably provided with 2 retaining members so that the sphere of the balls 3 does not drop down), the diameter of the balls 411 is slightly larger than that the diameter of the other balls 4 is formed on the two sides of the partition 41, the diameter of the partition 41 is slightly larger than the diameter of the other balls 411, and the diameter of the plastic partition 411 is slightly formed by the diameter of the plastic hole is slightly formed by the diameter of the two sides of the partition 4, thus, the ball 3 can be easily put into the accommodating part 411 due to slight elasticity of the material and cannot fall off due to rebound; that is, these methods can achieve the purpose of the holding member) (of course, the above-mentioned purpose of accommodating the balls 3 can be partially performed by making the diameters of the holes in the plate surface of the partition 41 slightly smaller than the diameters of the balls, and obviously, the balls can only be limited in one direction in the holes to be accommodated, and the balls 3 can fall in the second direction, but can not fall down if they are assembled in the slide rail, so that the whole use function of the slide rail is not affected, but the turnover and the installation of the semi-finished parts are inconvenient) (the structure of the partition 41 can enable the balls 3 to freely rotate in the accommodation portion 411, roll along the ball 3 guiding grooves of the slide rail inner rail 2 and the slide rail outer rail 1, and can not fall down and cause the balls 3 to collide with each other to interfere).

Further, the outer rail 1, the inner rail 2, and the partition plate 41 are all integrally stamped pieces of sheet metal (of course, as described above, it is obvious that the partition plate 41 may also be a plastic piece, which may be more conveniently integrally formed with the stopper 42, and the processing is simpler).

Further, along a second direction (this direction is the second direction in which the thickness of the sliding rail is to be thinned), the distance between the innermost inner wall of the U-shaped opening of the outer rail 1 and the adjacent longitudinal edge of each partition board 41 and the adjacent longitudinal edge of the inner rail 2 is smaller than 3 mm (through practical tests, the dimension can achieve both the process and the thinning performance in the second direction, and is better); the width of the spacer is smaller than 6 mm (through practical tests, the dimension can be better compatible with the dimension of the spacer 41 itself in the second direction and the strength of the spacer itself can meet the requirement of the accommodating portion 411).

The ball sliding rail overcomes the defects in the prior art, namely, the bead frame is removed from the U-shaped middle back cover section in the second thickness direction of the U-shaped opening direction, the thickness occupied by the thickness of the steel plate part of the U-shaped middle back cover section is saved, and the distance between the two spacing plates and the innermost part of the U-shaped inner rail and the U-shaped outer rail (only the gap between the inner rail and the outer rail is actually needed to be considered and the bead frame is arranged to be farther away from the outer rail) is not needed to be considered, so that the distance is saved, and obviously, the thickness of the whole ball sliding rail in the second direction of the sliding rail can be smaller or thinner. Of course, this must also solve the structure of the corresponding stop part well at the same time, and this is solved by the invention through the top end interconnect on the division board very well integrally (two purposes, namely, make the bead stand become an integral piece, form the stop part at the same time), thus expand its application when there is display support frame that the requirement of longer length of the stand or does not change the appearance of the stand and requires stand strength and rigidity relatively higher; and the structure is simpler, the processing and the installation are more convenient, the cost is lower, the environment is protected, and the size is smaller and more compact while the thickness in the second direction is reduced.

The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention, so that all changes which come within the meaning and range of equivalency of the description and drawings are intended to be embraced therein.

Claims

1. A second direction thickness reduction's ball slide rail for lift module's lift is with slide rail on stand in display support frame, includes: the device comprises an outer rail and an inner rail, wherein the outer rail is U-shaped in cross section, the U-shaped opening part of the inner rail faces to and stretches into the U-shaped opening of the outer rail, and gaps are kept between the U-shaped opening part and the outer rail; two rows of balls which are respectively arranged in gaps between the inner rail and the outer rail and are abutted against the two outer side surfaces of the inner rail; the corresponding bead frames are used for accommodating and separating the two rows of balls; the bead rack is in a shape like a II instead of a U, the corresponding object of the shape like the II is two long thin plate-shaped partition plates, and the two partition plates are longitudinally provided with containing parts for containing and separating the two rows of balls respectively; the upper top ends of the two spacing plates in the longitudinal direction of the bead frame are mutually connected and form a stop part which can be contacted by the upper top end of the inner rail which is lifted up in a reciprocating way, the two spacing plates are connected through the stop part and can integrally act, and when the stop part is contacted by the upper end of the inner rail, the bead frame can move upwards along with the inner rail;

along a second direction, the innermost wall of the U-shaped opening of the outer rail is spaced from the adjacent longitudinal edge of each spacing plate and the adjacent longitudinal edge of the inner rail by a distance of less than 3 mm;

the inner rail is provided with at least one connecting screw hole and/or through hole for connecting the lifting module; the stop part and the two spacing plates are integrally formed plastic parts or integrally formed metal plate stamping parts.

2. The ball slide rail of claim 1, wherein the stop portion is formed by two of the partition plates bending and extending toward the opposite side at the upper top end and interconnecting the two of the partition plates; the stop part and the two spacing plates are integrally formed plastic parts or integrally formed metal plate stamping parts.

3. The ball slide rail of claim 1, wherein the stopper is formed by sandwiching a perforated spacer between the upper tips of the two spacer plates and riveting them with each other with rivets.

4. The second-direction reduced thickness ball slide of claim 1 wherein the stop is riveted between the upper tips of the two spacer plates by rivets having two shoulders.

5. The ball slide rail according to claim 1, wherein the stop portion further comprises a U-shaped plate bridging curved plate, the bridging curved plate is disposed between the upper top ends of the two spaced plates, and two ends of the bridging curved plate and the two spaced plates are respectively riveted with a rivet to form the stop portion.

6. The ball slide rail of claim 1, wherein the stop portion is formed by extending two of the partition plates at the upper top end toward each other in a side direction of the other side so that the two are overlapped up and down, welding or forming a rivet hole at the overlapped position, and then riveting and fastening the two in the up and down direction by using a rivet.

7. The ball slide rail according to any one of claims 1 to 6, wherein each of the receiving portions of the partition plate is a hole having a diameter larger than that of the ball, and each of the hole edges is formed with at least two retaining members integrally bent and extended toward the received ball surface on both side plate surfaces of the partition plate, respectively, so that each of the balls is retained in the corresponding respective receiving portion.

8. The second-direction reduced thickness ball slide of any one of claims 1-6 wherein said outer rail, said inner rail, and said spacer are all sheet metal integral stampings.

9. The second-direction reduced thickness ball slide rail of any one of claims 1-6 wherein the spacer plate has a width of less than 6 mm.