A telescopic double-track guide rail and a working table structure of a saw table

Abstract

The present invention discloses a telescopic double-track guide rail and a worktable structure of a saw table, wherein the guide rail comprises a first track, a second track, a first bearing module and a second bearing module, both ends of the first track and the second track are provided with end metal baffles, the top and bottom of the track movable grooves of the first track and the second track are provided with circular guide pillars, the first bearing module and the second bearing module are both movably mounted between the track movable groove of the first track and the track movable groove of the second track, and the first bearing module and the second bearing module both comprise a bearing mounting seat, a bearing and a magnet. The present invention adopts a structural design combining a double track with two bearing modules, which has stable and reliable operation, good load-bearing capacity, is not easy to deform and damage, can be expanded and contracted, saves floor space, and is easy to use. In addition, the magnet design is adopted to prevent the positions of the two bearing modules from being disordered, so that the force of the guide rail is balanced.

Description

Technical Field

[0001] The present invention relates to the technical field of guide rails, and more particularly to a telescopic double-track guide rail and a working table structure of a saw table. Background Art

[0002] The working table of the existing saw table generally includes a frame and a working panel. The bottom of the two sides of the working panel can be slidably connected to the top of the frame through a slider and a long guide rail. The cost of this sliding structure is low, but the long guide rail is a long track that cannot be extended, resulting in a large area occupied by the saw table. If ordinary drawer-type guide rails are used, such guide rails have poor load-bearing capacity and are easily deformed and damaged. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned defects in the prior art and to provide a telescopic double-track guide rail and a working table structure of a saw table, the guide rails of which have stable and reliable operation, balanced force, good load-bearing capacity, are not easy to deform and damage, can be expanded and retracted, save space, and are easy to use.

[0004] To achieve the above-mentioned purpose, the first aspect of the present invention provides a telescopic double-track guide rail, comprising a first track, a second track, a first bearing module and a second bearing module, the inner side surface of the first track and the inner side surface of the second track are respectively provided with track movable grooves which are concave and extend along the length direction thereof, the top and bottom of each track movable groove are embedded and fixed with circular guide pillars which are symmetrical up and down, each circular guide pillar extends along the length direction of the track movable groove, both ends of the first track and the second track are provided with end metal baffles which can close both ends of the track movable groove, the first bearing module and the second bearing module are oriented in opposite directions, and the first bearing module and the second bearing module are both movably installed between the track movable groove of the first track and the track movable groove of the second track;

[0005] Among them, the first bearing module and the second bearing module both include a bearing mounting seat, a plurality of bearings and two magnets for realizing magnetic attraction with the end metal baffle, the bearings are respectively mounted on the two side surfaces of the bearing mounting seat, the outer ring surface of each bearing is provided with a circle of arc-shaped grooves matching the shape of the circular guide column, all the bearings located on one side of the bearing mounting seat are placed in the track movable groove of the first track, and can roll with the circular guide column in the track movable groove of the first track, while all the bearings located on the other side of the bearing mounting seat are placed in the track movable groove of the second track, and can roll with the circular guide column in the track movable groove of the second track, and two magnets are respectively mounted on the head end surface of the bearing mounting seat.

[0006] Preferably, the bearing mounting seat includes a first bearing mounting plate and a second bearing mounting plate, the head end of the first bearing mounting plate and the head end of the second bearing mounting plate are respectively bent to form end plates perpendicular thereto, the first bearing mounting plate and the second bearing mounting plate are combined and installed to form a T-shaped structure, and the magnet is installed on the outer end surfaces of the two end plates.

[0007] Preferably, a circular screw hole and an obliquely arranged adjustment waist-shaped hole are respectively provided on the first bearing mounting plate and the second bearing mounting plate, the circular screw hole and the adjustment waist-shaped hole on the first bearing mounting plate are arranged alternately in sequence, the circular screw hole and the adjustment waist-shaped hole on the second bearing mounting plate are arranged alternately in sequence, and the circular screw hole on the first bearing mounting plate corresponds to the adjustment waist-shaped hole of the second bearing mounting plate, the adjustment waist-shaped hole on the first bearing mounting plate corresponds to the circular screw hole of the second bearing mounting plate, and all bearings located on both sides of the first bearing mounting plate and the second bearing mounting plate are locked and fixed by locking screws that simultaneously pass through their corresponding circular screw holes and adjustment waist-shaped holes.

[0008] Preferably, a lower boss facing downwards is provided at a middle position of the bottom of the first bearing mounting plate, and an upper boss facing upwards is provided at a middle position of the top of the second bearing mounting plate.

[0009] Preferably, dust removal blocks made of soft rubber material are respectively installed on the inner side surfaces of the end plates of the first bearing mounting plate and the inner side surfaces of the end plates of the second bearing mounting plate, and the tops of the dust removal blocks are provided with arc-shaped avoidance grooves corresponding to the positions of the circular guide columns.

[0010] Preferably, the main cross-sectional shape of the first track is set to "[", and the main cross-sectional shape of the second track is set to "]".

[0011] Preferably, a first horizontal extension portion extending horizontally outward is provided at the bottom of the outer side surface of the first track, and a second horizontal extension portion extending horizontally outward is provided at the top of the outer side surface of the second track.

[0012] A second aspect of the present invention provides a workbench structure of a saw table, comprising a frame body and a work panel, wherein the bottom two sides of the work panel are slidably connected to the frame body via the telescopic double-track guide rails described in the above technical solution.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention has a simple structure and reasonable design. It adopts a structural design combining double tracks with two bearing modules. It has stable and reliable operation, good load-bearing capacity, is not easy to deform and damage, can be expanded and retracted, saves space, and is easy to use.

[0015] 2. Magnets are provided at the ends of the two bearing modules of the present invention, and the magnets can realize magnetic attraction cooperation with the end metal baffles of the first track and the second track to ensure that when the guide rail is reset after being unfolded, the end metal baffles of the first track or the second track can pull the bearing module to reset by suction, and can ensure that one bearing module is at least attracted to the end metal baffle at one end of one track, and the other bearing module is at least attracted to the end metal baffle at the other end of the other track. In this way, the positions of the two bearing modules can be prevented from being disordered, the force of the guide rail is balanced, and the load-bearing capacity is further improved.

[0016] 3. The first bearing mounting plate and the second bearing mounting plate of the present invention adopt a circular screw hole and an inclined adjustment waist-shaped hole design. After loosening the locking screws, it is convenient to adjust the upper and lower positions of the bearings, thereby facilitating the adjustment of the matching position between the bearings and the circular guide columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a side view of the telescopic double-track guide provided by an embodiment of the present invention after hiding the end metal baffle at one end;

[0019] Figure 2 is a side view of a first track provided by an embodiment of the present invention;

[0020] Figure 3 is a structural schematic diagram of a first bearing module or a second bearing module provided in an embodiment of the present invention;

[0021] Figure 4 is an exploded view of a first bearing module or a second bearing module provided by an embodiment of the present invention;

[0022] Figure 5 is a perspective view of a telescopic double-track guide provided by an embodiment of the present invention when retracted;

[0023] Figure 6 is a perspective view of a telescopic double-track guide provided by an embodiment of the present invention when unfolded;

[0024] Figure 7 It is a structural schematic diagram of the working table structure of the saw table provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1

[0027] Please refer to Figure 1 , Figure 2 and Figure 3 Embodiment 1 of the present invention provides a telescopic double-track guide rail, including a first track 1, a second track 2, a first bearing module 3, a second bearing module 4 and other components. The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0028] In this embodiment, preferably, the main cross-sectional shape of the first track 1 can be set to "[", and the main cross-sectional shape of the second track 2 can be set to "]". The inner side surfaces of the first track 1 and the inner side surfaces of the second track 2 are respectively provided with concave track movable grooves 10 extending along their length directions. The top and bottom of each track movable groove 10 are embedded and fixed with circular guide columns 5 which are symmetrical up and down. Each circular guide column 5 extends along the length direction of the track movable groove 10. Both ends of the first track 1 and both ends of the second track 2 are provided with end metal baffles 6 which can close both ends of the track movable groove 10.

[0029] The first bearing module 3 and the second bearing module 4 are both movably installed between the track movable groove 10 of the first track 1 and the track movable groove 10 of the second track 2, and the first bearing module 3 and the second bearing module 4 are in opposite directions.

[0030] like Figure 3 and Figure 4 As shown, the first bearing module 3 and the second bearing module 4 each include a bearing mounting seat, a plurality of bearings 32 and two magnets 33 for realizing magnetic attraction with the end metal baffle 6, the bearings 32 are respectively mounted on the two side surfaces of the bearing mounting seat, the outer ring surface of each bearing 32 is provided with a circle of arc-shaped grooves matching the shape of the circular guide column 5, all the bearings 32 located on one side of the bearing mounting seat are placed in the track movable groove 10 of the first track 1, and can roll with the circular guide column 5 in the track movable groove 10 of the first track 1, and all the bearings 32 located on the other side of the bearing mounting seat are placed in the track movable groove 10 of the second track 2, and can roll with the circular guide column 5 in the track movable groove 10 of the second track 2, and two magnets 33 are respectively mounted on the head end surface of the bearing mounting seat.

[0031] Furthermore, preferably, the bearing mounting seat can adopt a split structure, and the bearing mounting seat can include a first bearing mounting plate 30 and a second bearing mounting plate 31, the head end of the first bearing mounting plate 30 and the head end of the second bearing mounting plate 31 are respectively bent to form an end plate 301 perpendicular thereto, the first bearing mounting plate 30 and the second bearing mounting plate 31 are combined and installed to form a T-shaped structure, and the magnet 33 is installed on the outer end surfaces of the two end plates 301.

[0032] like Figure 3 and Figure 4 As shown, the first bearing mounting plate 30 and the second bearing mounting plate 31 are respectively provided with circular screw holes 303 for mounting and positioning the bearings, and an adjusting waist-shaped hole 304 which is tilted (e.g., tilted 45 degrees). The circular screw holes 303 and the adjusting waist-shaped holes 304 on the first bearing mounting plate 30 are arranged alternately in sequence, and the circular screw holes 303 and the adjusting waist-shaped holes 304 on the second bearing mounting plate 31 are arranged alternately in sequence, and the circular screw holes 303 on the first bearing mounting plate 30 correspond to the adjusting waist-shaped holes 304 of the second bearing mounting plate 31, and the adjusting waist-shaped holes 304 on the first bearing mounting plate 30 correspond to the circular screw holes 303 of the second bearing mounting plate 31. All the bearings 32 located on both sides of the first bearing mounting plate 30 and the second bearing mounting plate 31 are locked and fixed by locking screws 35 (also known as parent-child screws) which simultaneously pass through their corresponding circular screw holes 303 and adjusting waist-shaped holes 304.

[0033] During specific installation, for one group of bearings, the sub-nail of the sub-thread screw 35 can be threaded through the inner ring center hole, circular screw hole 303, adjustment waist-shaped hole 304 of the bearing 32 located on the side of the first bearing mounting plate 30, and the female nail in the inner ring center hole of another bearing 32 located on the side of the second bearing mounting plate 31. For another adjacent group of bearings, the sub-nail of the sub-thread screw 35 can be threaded through the inner ring center hole, adjustment waist-shaped hole 304, circular screw hole 303, and the female nail in the inner ring center hole of another bearing 32 located on the side of the second bearing mounting plate 31, and so on.

[0034] When the locking screws are tightened, the first bearing mounting plate 30 and the second bearing mounting plate 31 are also locked and will not be offset or misplaced. After loosening the locking screws, the first bearing mounting plate 30 and the second bearing mounting plate 31 can be tilted and offset, so that the upper and lower positions of the bearings on both sides can be adjusted, thereby facilitating the adjustment of the matching position between the bearings and the circular guide column. At the same time, the relative height of the first track 1 and the second track 2 can also be adjusted, wherein the height of the second track 2 can be flush with the first track 1 or higher than the first track 1.

[0035] Preferably, in order to facilitate manual pressing of the first bearing mounting plate 30 and the second bearing mounting plate 31 to tilt and offset them, a downwardly facing lower boss 302 is provided at the bottom middle position of the first bearing mounting plate 30, and an upwardly facing upper boss 311 is provided at the top middle position of the second bearing mounting plate 31.

[0036] It should be noted that in other embodiments, the bearing mounting seat may also adopt an integrated structure instead of a structure with two separate sides, which is not limited to this embodiment.

[0037] like Figure 3 As shown, as a further improvement of this embodiment, the inner side surface of the end plate 301 of the first bearing mounting plate 30 and the inner side surface of the end plate 301 of the second bearing mounting plate 31 can also be respectively installed with a dust removal block 34 made of a soft glue material (such as soft rubber), and the top of the dust removal block 34 is provided with an arc-shaped avoidance groove corresponding to the position of the circular guide column 5.

[0038] Among them, the dust removal block 34 is arranged in front of the bearing to push away some dust and debris entering the first track 1 and the second track 2 to prevent them from affecting the movement of the bearing, thereby increasing the service life of the guide rail and reducing the maintenance of the guide rail.

[0039] like Figure 1 As shown, in order to facilitate the installation or connection of objects on the first rail 1 and the second rail 2, the first rail 1 may be provided with a first horizontal extension portion 11 extending horizontally outward at the bottom of the outer side surface, and the second rail 2 may be provided with a second horizontal extension portion 21 extending horizontally outward at the top of the outer side surface. For example, screws are installed on the first horizontal extension portion 11 to fix the first rail 1 on the specified object, and the plate body is installed on the second horizontal extension portion 21 by screws.

[0040] like Figure 5 As shown, when the guide rail is in a retracted state, the first bearing module 3 and the second bearing module 4 are always located on the left and right sides of the first track and the second track, and the two magnets of the first bearing module 3 are respectively attracted to the end metal baffle on the left side of the first track and the end metal baffle on the left side of the second track, and the two magnets of the second bearing module 4 are respectively attracted to the end metal baffle on the right side of the first track and the end metal baffle on the right side of the second track.

[0041] like Figure 6 As shown in the figure, when the guide rail is in the unfolded state, the first rail moves to the left, and the first bearing module 3 is blocked by the end metal baffle on the left side of the second rail and will not move to the left with the first rail, while the end metal baffle on the right side of the first rail will push the second bearing module 4 to move to the left. When the guide rail is retracted and reset (i.e. the first rail moves to the right), the magnet of the second bearing module 4 will attract the end metal baffle on the right side of the first rail and move to the right with the first rail.

[0042] In this embodiment, the magnet can achieve magnetic attraction cooperation with the end metal baffle to ensure that when the guide rail is reset after being unfolded, the end metal baffle of the first track or the second track can pull the bearing module to reset through suction, and can ensure that one bearing module is at least attracted to the end metal baffle at one end of one track, and the other bearing module is at least attracted to the end metal baffle at the other end of the other track. This can prevent the positions of the two bearing modules from being disordered, balance the force of the guide rail, and further improve the load-bearing capacity.

[0043] Embodiment 2

[0044] Please refer to Figure 7 The second embodiment of the present invention provides a workbench structure of a saw table, including a frame body 7 and a work panel 8. The bottom two sides of the work panel 8 are slidably connected to the frame body 7 by the telescopic double-track guide rails described in the first embodiment above.

[0045] It should be noted here that the telescopic double-track guide rail can be applied not only to saw table equipment, but also to other equipment or products that require guide rails for movement, and is not limited to this embodiment.

[0046] To sum up, the present invention has a simple structure and a reasonable design. It adopts a structural design combining double tracks and two bearing modules. It has stable and reliable operation, balanced force, good load-bearing capacity, is not easy to deform and damage, can be expanded and retracted, saves space, and is easy to use.

[0047] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A telescopic double track guide rail, Features: The invention comprises a first track (1), a second track (2), a first bearing module (3) and a second bearing module (4); the inner side surface of the first track (1) and the inner side surface of the second track (2) are respectively provided with a track movable groove (10) which is concave and extends along the length direction thereof; the top and the bottom of each track movable groove (10) are embedded and fixed with a circular guide column (5) which is symmetrical up and down; each circular guide column (5) extends along the length direction of the track movable groove (10); both ends of the first track (1) and both ends of the second track (2) are provided with end metal baffles (6) which can close both ends of the track movable groove (10); the first bearing module (3) and the second bearing module (4) are oriented in opposite directions; the first bearing module (3) and the second bearing module (4) are both movably mounted between the track movable groove (10) of the first track (1) and the track movable groove (10) of the second track (2); The first bearing module (3) and the second bearing module (4) both comprise a bearing mounting seat, a plurality of bearings (32) and two magnets (33) for realizing magnetic attraction with the end metal baffle (6), the bearings (32) being respectively mounted on the two side surfaces of the bearing mounting seat, the outer ring surface of each bearing (32) being provided with a circle of arc-shaped grooves matching the shape of the circular guide pillar (5), all the bearings (32) located on one side of the bearing mounting seat being placed in the track movable groove (10) of the first track (1) and being able to roll in cooperation with the circular guide pillar (5) in the track movable groove (10) of the first track (1), and all the bearings (32) located on the other side of the bearing mounting seat being placed in the track movable groove (10) of the second track (2) and being able to roll in cooperation with the circular guide pillar (5) in the track movable groove (10) of the second track (2), and the two magnets (33) being respectively mounted on the head end surface of the bearing mounting seat; The bearing mounting seat comprises a first bearing mounting plate (30) and a second bearing mounting plate (31); the head end of the first bearing mounting plate (30) and the head end of the second bearing mounting plate (31) are respectively bent to form end plates (301) perpendicular thereto; the first bearing mounting plate (30) and the second bearing mounting plate (31) are assembled and installed to form a T-shaped structure; the magnet (33) is installed on the outer end surfaces of the two end plates (301); The first bearing mounting plate (30) and the second bearing mounting plate (31) are respectively provided with a circular screw hole (303) and an inclined adjustment waist-shaped hole (304); the circular screw hole (303) and the adjustment waist-shaped hole (304) on the first bearing mounting plate (30) are arranged alternately in sequence; the circular screw hole (303) and the adjustment waist-shaped hole (304) on the second bearing mounting plate (31) are arranged alternately in sequence; the circular screw hole (303) on the first bearing mounting plate (30) corresponds to the adjustment waist-shaped hole (304) of the second bearing mounting plate (31); the adjustment waist-shaped hole (304) on the first bearing mounting plate (30) corresponds to the circular screw hole (303) of the second bearing mounting plate (31); all the bearings (32) located on both sides of the first bearing mounting plate (30) and the second bearing mounting plate (31) are locked and fixed by locking screws (35) that simultaneously pass through the corresponding circular screw holes (303) and the adjustment waist-shaped holes (304).

2. A telescopic double track guide rail according to claim 1, Features: A downwardly facing lower boss (302) is provided at the middle position of the bottom of the first bearing mounting plate (30), and an upwardly facing upper boss (311) is provided at the middle position of the top of the second bearing mounting plate (31).

3. A telescopic double track guide rail according to claim 1, Features: The inner side surface of the end plate (301) of the first bearing mounting plate (30) and the inner side surface of the end plate (301) of the second bearing mounting plate (31) are respectively provided with dust removal blocks (34) made of soft rubber material, and the top of the dust removal block (34) is provided with an arc-shaped avoidance groove corresponding to the position of the circular guide column (5).

4. A telescopic double track guide rail according to claim 1, Features: The main cross-sectional shape of the first track (1) is set to "[", and the main cross-sectional shape of the second track (2) is set to "]".

5. A telescopic double-track guide rail according to claim 1 or 4, Features: The bottom of the outer side surface of the first track (1) is provided with a first horizontal extension portion (11) extending horizontally outward, and the top of the outer side surface of the second track (2) is provided with a second horizontal extension portion (21) extending horizontally outward.

6. A working table structure of a saw table, comprising a frame (7) and a working panel (8), Features: The two sides of the bottom of the working panel (8) are slidably connected to the frame (7) via the telescopic double-track guide rails described in any one of claims 1 to 5.

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