CN210034170U - Novel linear sliding rail - Google Patents

Abstract

The utility model relates to a novel linear slide rail, belong to linear slide rail, a structural design is reasonable, the wholeness of circulatory system and bearing system is good, the chain belt carries on spacingly, make the chain belt more convenient when the assembly, and more stable when using, life is longer, the security is better, the technical scheme of adoption is for regarding slider body as inserts and backward flow lid through injection moulding, the back flow, go up connecting portion, well connecting portion and lower connecting portion pass through injection moulding, set up the third fixed slot from top to bottom in well connecting portion, set up second fixed slot and fourth fixed slot on last connecting portion and lower connecting portion, make the upper and lower both ends of chain belt obtain the restriction when the motion, not only make things convenient for the installation of chain belt, and make the slide rail chain belt remove more stable when using.

Description

Novel linear sliding rail

Technical Field

The utility model relates to a linear sliding rail especially relates to a novel linear sliding rail.

Background

The linear slide rail is used for the linear reciprocating motion occasion, can bear certain torque, and can realize high-precision linear motion under the condition of high load. The linear sliding rail is mainly used on a mechanical structure with higher precision requirement, and mainly comprises the following parts: the bearing system, the circulating system, the dustproof system and the lubricating system, wherein the circulating system consists of various backflow components, including an end cover, a backflow pipe, a retainer and the like, and the rolling component can perform reciprocating circulating rolling between the sliding block and the guide rail through the backflow components; and before the sliding block is not installed on the guide rail, the retainer is used for supporting the rolling assembly to prevent the rolling assembly (ball and roller) from falling off the sliding block. Most linear slider's circulation system at present stage adopts a plurality of parts assembly to constitute, make circulation system and bearing system's wholeness relatively poor, there is certain error during processing and the assembly of each part, there is certain clearance between each subassembly, make linear slider can produce vibrations at the during operation, and the sliding part is smooth and easy, life is not long, and among the prior art, linear slide rail is when the assembly chain belt, because lack the restriction of guide rail and keep the ware and only play the supporting role, the chain belt takes place to drop easily, increase the assemble duration, and lack the restriction to chain belt horizontal direction on the slide rail, the chain belt can take place the friction with the guide rail and lead to wearing and tearing when the slide rail during operation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a novel linear slide rail, this slide rail structural design is reasonable, and the wholeness of circulatory system and bearing system is good, and the chain belt carries on spacingly for more convenience when the assembly of chain belt, and more stable when using, life is longer, and the security is better.

The utility model provides a technical scheme that its technical problem adopted: the novel linear slide rail comprises a slide block body and a guide rail, wherein a plurality of threaded holes which are uniformly distributed are formed in the upper end of the slide block body, a forming groove is formed in the inner side of the lower end of the slide block body, through holes which are formed in the upper end and the lower end of the slide block body are formed in the left end and the right end of the forming groove, ball grooves which are located at the upper end and the lower end of the forming groove are formed in the left end and the right end of the forming groove, a first screw hole which is formed in the slide block body is formed between the upper through hole and the lower through hole, a left second screw hole and a right second screw hole are formed in the upper side and the lower side of the front end and the rear end of the slide block body, return covers are arranged at the front end and the rear end of the slide block body, the upper ends of the return covers are located on the lower sides of, the left and right sides of the middle end of the guide rail are provided with limiting grooves, the front and back upper ends of the sliding groove are provided with upper connecting parts for connecting the front and back backflow covers, the left and right sides of the lower end of the upper connecting part are provided with first clamping grooves positioned at the upper end of the guide rail, a first sealing strip is clamped in the first clamping grooves, the lower end of the first sealing strip is provided with a first shielding part, the first shielding part is in contact connection with the upper end of the guide rail, the front and back left and right sides of the middle end of the sliding groove are provided with middle connecting parts for connecting the front and back backflow covers, the front and back left sides of the lower end of the sliding groove are provided with lower connecting parts for connecting the front and back backflow covers, the lower connecting parts are in sliding connection with the limiting grooves, the lower end of the lower connecting parts is provided with second clamping grooves, the lower end of the second sealing strips is provided with second shielding parts, the, front and back the backward flow lid about both ends open has the backward flow hole that corresponds with the through-hole, around be equipped with between the backward flow hole and be located the back flow in the through-hole, be equipped with backflow channel in the back flow, both ends are equipped with first fixed slot about the backward flow channel, the backward flow is covered and is opened and have the first sliding tray that corresponds with the ball groove, be equipped with the backward flow portion that is located both ends around the backward flow lid between backward flow hole and the first sliding tray, the upper junction portion left and right sides and left and right sides the lower junction portion upper end is equipped with the second sliding tray respectively, first sliding tray, second sliding tray and upper end the slide groove formation sliding channel, be equipped with the chain belt in backflow channel, the sliding channel, the contained angle of the plane of motion of chain belt and horizontal plane is more than or equal to 15, the upper end open the second fixed slot outside the second sliding tray, open at well connecting, the outer side of the second sliding groove at the lower end is provided with a fourth fixing groove, the fourth fixing groove is provided with an upper connecting part, a middle connecting part and a lower connecting part, so that balls are more stable during movement and are not easy to fall off, the third fixing groove is arranged above and below the middle connecting part, the second fixing groove and the fourth fixing groove are arranged on the upper connecting part and the lower connecting part, so that a chain belt cannot fall off during assembly, and when the sliding rail is used, the chain belt can be prevented from moving in a sliding channel, the friction between the chain belt and a guide rail is reduced, the stability of the chain belt is improved, the service life of the chain belt is prolonged, the included angle between the movement plane of the chain belt and the horizontal plane is;

the left side and the right side of the lower end of the forming groove are provided with a plurality of anti-moving grooves formed in the slider body, the lower connecting part is provided with a plurality of anti-moving parts positioned in the anti-moving grooves, the outer sides of the front and the back backflow covers are provided with sealing covers, the inner sides of the sealing covers are provided with mounting grooves, the outer sides of the backflow covers are provided with backflow grooves formed in the mounting grooves, the upper end of each sealing cover is provided with a third screw hole corresponding to the second screw hole, the outer sides of the third screw holes are provided with countersunk holes formed in the sealing covers, the left end and the right end of each sealing cover are provided with fixing holes corresponding to the process holes, the upper end and the lower end of each sealing cover are provided with third clamping grooves corresponding to the first clamping grooves and the second clamping grooves respectively, the outer sides of the third clamping grooves are provided with fixing grooves formed in the sealing covers, the front end and the rear end of each first sealing strip are clamped in the, front and back the fixed part joint is inboard at the fixed slot, the sealed lid outside is equipped with the visor, both ends are equipped with first location portion about the sealed lid outside, the first location portion outside is equipped with opens the locating hole in the protective cover inboard, both ends are equipped with the connecting hole that corresponds with the fixed orifices about the visor, and the connecting hole outside is equipped with opens the constant head tank on the protective cover, the visor outside is equipped with the end cover, and both ends are equipped with the hole that increases that corresponds with the connecting hole about the end cover, it is equipped with and is located to add the macropore outside second location portion in the constant head tank, is equipped with sealed lid for the leakproofness of this slide rail is good, makes the lubrication effect of this slide rail good, is equipped with visor and end cover, makes this slide rail.

In order to further perfect, the inboard joint of chain belt has the ball, adopts the ball as the motion original paper for resistance is little when this slide rail removes, and the flexibility ratio is high.

Further perfect, the slider body adopts metal material, the backward flow lid, back flow, go up connecting portion, well connecting portion and lower connecting portion form a whole through injection moulding and slider body, have eliminated assembly error and assembly gap between slider body and backward flow lid, back flow, last connecting portion, well connecting portion and lower connecting portion for this slide rail is more stable when using, and the precision is higher, and life is longer.

The sealing cover is further improved, an oil inlet hole is formed in the center of the upper end of the sealing cover and located between the left and right third screw holes, first oil paths which are formed in the inner sides of the sealing cover are arranged at the left and right ends of the inner side of the oil inlet hole, the first oil paths are located on the upper side of the third screw hole, a second oil path which is formed in the upper end of the inner side of the mounting groove is connected to the outer sides of the left and right first oil paths, third oil paths which are formed in the left and right ends of the inner side of the mounting groove are connected to the outer sides of the left and right second oil paths, the lower end of the third oil path penetrates through the fixing hole and is located on the outer side of the return groove, a fourth oil path which corresponds to the third oil path is formed in the outer side of the return cover, a fifth oil path which is connected to the return hole is formed in the center of the upper end of the protective, the flange portion that is located the standing groove is equipped with to the tank filler sleeve inboard, and the first oil circuit, second oil circuit, third oil circuit and the fourth oil circuit that are equipped with make the entering return flow in that the lubricating oil that adds can be quick.

The utility model discloses profitable effect is: the utility model has the advantages of reasonable design, through injection moulding with the slider body as inserts and backward flow lid, the back flow, go up connecting portion, well connecting portion and lower connecting portion pass through injection moulding, make the wholeness of circulatory system and bearing system good, make this slide rail precision when using high, the temperature nature good, long service life, it is spacing to have carried out the chain belt, make the chain belt more convenient when the assembly, and more stable when using, and life is longer, and the security is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a front view of the slider body;

FIG. 4 is a schematic structural view of the return cover, the upper connecting portion, the middle connecting portion, the lower connecting portion and the return pipe;

FIG. 5 is a front view of the reflow lid;

FIG. 6 is an installation schematic diagram of the backflow cap, the slider body, the guide rail, the first sealing strip, and the second sealing strip;

FIG. 7 is a schematic view of the installation of the slider body, the reflow cover and the chain belt;

FIG. 8 is a bottom view of the slider body;

FIG. 9 is a bottom view of the slider body, the reflow cap, and the sealing cap after installation;

FIG. 10 is a schematic view of the installation of the slider body, the first seal strip, the second seal strip, the guide rail and the seal cover;

FIG. 11 is a schematic view of the sealing cap;

FIG. 12 is a rear view of the seal cap;

FIG. 13 is a schematic structural diagram of a protective cover;

FIG. 14 is a front view of the guide rail;

fig. 15 is a schematic structural view of the first sealing tape.

Description of reference numerals: 1. a slider body, 2, a guide rail, 3, a threaded hole, 4, a molding groove, 5, a through hole, 6, a ball groove, 7, a first screw hole, 8, a second screw hole, 9, a backflow cover, 10, a process hole, 11, a sliding groove, 12, a slide groove, 13, a limiting groove, 14, an upper connecting part, 15, a first clamping groove, 16, a first sealing strip, 17, a first shielding part, 18, a middle connecting part, 19, a lower connecting part, 20, a second clamping groove, 21, a second sealing strip, 22, a second shielding part, 23, a fixing part, 24, a backflow hole, 25, a backflow pipe, 26, a backflow channel, 27, a first fixing groove, 28, a first sliding groove, 29, a backflow part, 30, a second sliding groove, 32, a sliding channel, 34, a second fixing groove, 35, a third fixing groove, 36, a fourth fixing groove, 37, an anti-movement groove, 38, an anti-movement part, 39, a sealing cover, 40, a mounting groove, 41. the oil return groove, 42, a third screw hole, 43, a counter bore, 44, a fixing hole, 45, a third clamping groove, 46, a fixing groove, 47, a protective cover, 48, a first positioning part, 49, a positioning hole, 50, a connecting hole, 51, a positioning groove, 52, an end cover, 53, an enlarged hole, 54, a second positioning part, 55, an oil inlet hole, 56, a first oil path, 57, a second oil path, 58, a third oil path, 59, a fourth oil path, 60, a fifth oil path, 61, a placing hole, 62, a placing groove, 63, an oil filling hole, 64, a boss part, 65 and a chain belt.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to figures 1-15: the novel linear sliding rail comprises a sliding block body 1 and a guide rail 2, wherein a plurality of threaded holes 3 which are uniformly distributed are formed in the upper end of the sliding block body 1, a forming groove 4 is formed in the inner side of the lower end of the sliding block body 1, through holes 5 which are formed in the upper end and the lower end of the sliding block body 1 are formed in the left end and the right end of the forming groove 4, ball grooves 6 which are located in the upper end and the lower end of the forming groove are formed in the left end and the right end of the forming groove 4, a first screw hole 7 which is formed in the sliding block body 1 is formed between the upper end and the lower end of the through hole 5, a left second screw hole 8 and a right second screw hole 8 are formed in the upper side and the lower end of the sliding block body 1, backflow covers 9 are arranged at the front end and the rear end of the sliding block body 1, process holes 10 which correspond to the first screw holes, the guide rail 2 is connected to the inner side of a sliding groove 11 in a sliding manner, the left and right ends of the guide rail 2 are provided with a sliding groove 12, the left and right sides of the middle end of the guide rail 2 are provided with a limiting groove 13, the upper end of the sliding groove 11 is provided with an upper connecting part 14 for connecting the front and back backflow cover 9, the left and right sides of the lower end of the upper connecting part 14 are provided with first clamping grooves 15 positioned at the upper end of the guide rail 2, a first sealing strip 16 is clamped in the first clamping grooves 15, the lower end of the first sealing strip 16 is provided with a first shielding part 17, the first shielding part 17 is in contact connection with the upper end of the guide rail 2, the left and right sides of the middle end of the sliding groove 11 are provided with middle connecting parts 18 for connecting the front and back backflow cover 9, the left and right sides of the lower end of the sliding groove 11 are provided with lower connecting parts 19 for connecting the, a second sealing strip 21 is clamped in the second clamping groove 20, a second shielding portion 22 is arranged at the lower end of the second sealing strip 21, the second shielding portion 22 is in contact connection with the lower end of the limiting groove 13, fixing portions 23 are arranged at the front end and the rear end of the first sealing strip 16 and the second sealing strip 21, a backflow hole 24 corresponding to the through hole 5 is formed at the left end and the right end of the backflow cover 9, a backflow pipe 25 located in the through hole 5 is arranged between the backflow hole 24 and the backflow hole, a backflow passage 26 is arranged in the backflow pipe 25, first fixing grooves 27 are arranged at the upper end and the lower end of the backflow passage 26, a first sliding groove 28 corresponding to the ball groove 6 is formed in the backflow cover 9, backflow portions 29 located at the front end and the rear end of the backflow cover 9 are arranged between the backflow hole 24 and the first sliding groove 28, second sliding grooves 30 are respectively arranged at the left end and the right end of the upper connecting portion, the first sliding groove 28, the second sliding groove 30 and the upper end of the sliding groove 12 form a sliding channel 32, a chain belt 65 is arranged in the backflow channel 26 and the sliding channel 32, an included angle between a movement plane of the chain belt 65 and a horizontal plane is more than or equal to 15 degrees, a second fixing groove 34 is formed in the outer side of the second sliding groove 30 at the upper end, third fixing grooves 35 are formed in the upper end and the lower end of the middle connecting part 18, a fourth fixing groove 36 is formed in the outer side of the second sliding groove 30 at the lower end, a plurality of anti-moving grooves 37 formed in the sliding block body 1 are formed in the left side and the right side of the lower end of the forming groove 4, a plurality of anti-moving parts 38 located in the anti-moving grooves 37 are arranged on the lower connecting part 19, a sealing cover 39 is arranged on the outer side of the backflow cover 9 in the front and back direction, an installation groove 40 is arranged on the inner side of, the upper end of the sealing cover 39 is provided with a third screw hole 42 corresponding to the second screw hole 8, the outer side of the third screw hole 42 is provided with a countersunk hole 43 opened on the sealing cover 39, the left and right ends of the sealing cover 39 are provided with fixing holes 44 corresponding to the fabrication hole 10, the upper and lower ends of the sealing cover 39 are provided with third clamping grooves 45 corresponding to the first clamping groove 15 and the second clamping groove 20 respectively, the outer side of the third clamping groove 45 is provided with a fixing groove 46 opened on the sealing cover 39, the front and rear ends of the first sealing strip 16 are clamped in the third clamping groove 45 at the upper end, the front and rear ends of the second sealing strip 21 are clamped in the third clamping groove 45 at the lower end, the front and rear fixing parts 23 are clamped inside the fixing groove 46, the outer side of the sealing cover 39 is provided with a protective cover 47, the left and right ends of the outer side of the sealing cover 39 are provided with first positioning parts 48, the outer side of the first, the left end and the right end of the protective cover 47 are provided with connecting holes 50 corresponding to the fixing holes 44, the outer side of each connecting hole 50 is provided with a positioning groove 51 opened on the protective cover 47, the outer side of the protective cover 47 is provided with an end cover 52, the left end and the right end of the end cover 52 are provided with enlarged holes 53 corresponding to the connecting holes 50, the outer side of each enlarged hole 53 is provided with a second positioning part 54 positioned in the positioning groove 51, the inner side of the chain belt 65 is clamped with a ball 68, the slider body 1 is made of metal materials, the backflow cover 9, the backflow pipe 25, the upper connecting part 14, the middle connecting part 18 and the lower connecting part 19 are integrated with the slider body 1 through injection molding, the center position of the upper end of the sealing cover 39 is provided with an oil inlet hole 55 positioned between the left screw hole and the right screw hole 42, the left end and the right end of the inner side of the, a second oil path 57 opened at the upper end of the inner side of the mounting groove 40 is connected to the outer side of the left and right first oil paths 56, a third oil path 58 opened at the left and right ends of the inner side of the mounting groove 40 is connected to the outer side of the left and right second oil paths 57, the lower end of the third oil path 58 passes through the fixing hole 44 and is positioned at the outer side of the return groove 41, a fourth oil path 59 corresponding to the third oil path 58 is opened at the outer side of the return cover 9, a fifth oil path 60 connected to the return hole 24 is provided on the fourth oil path 59, a placing hole 61 corresponding to the oil inlet hole 55 is opened at the center position of the upper end of the protective cover 47, a placing groove 62 opened on the outer side of the placing hole 61 is provided at the outer side of the protective cover 47, an oil filling hole 63 corresponding to the placing hole 61 is provided at the.

In the utility model, the slide block body 1 is taken as an insert and put into a mould through injection moulding, the backflow cover 9, the backflow pipe 25, the upper connecting part 14, the middle connecting part 18 and the lower connecting part 19 are integrally formed through injection moulding, so that the integrity of a circulating system and a bearing system of the slide rail is good, the assembly error and the assembly gap between the slide block body 1 and other assembly parts are eliminated, the slide rail is more stable in use, higher in precision and longer in service life, the third fixing grooves 35 are arranged above and below the middle connecting part 18, the second fixing grooves 34 and the fourth fixing grooves 36 are arranged on the upper connecting part 14 and the lower connecting part 19, so that the chain belt 65 can not fall off in assembly, and when the slide rail is used, the chain belt 65 can be prevented from moving in the sliding channel 32, the friction between the chain belt 65 and the guide rail 2 in use is reduced, the stability and the service life of the, the included angle between the moving plane of the chain belt 65 and the horizontal plane is more than or equal to 15 degrees, and the interference between the connecting part and the guide rail is avoided when the chain belt is used.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (4)

1. The utility model provides a novel linear sliding rail, includes slider body (1) and guide rail (2), characterized by: the upper end of the sliding block body (1) is provided with a plurality of uniformly distributed threaded holes (3), the inner side of the lower end of the sliding block body (1) is provided with a forming groove (4), the left end and the right end of the forming groove (4) are provided with through holes (5) arranged at the upper end and the lower end of the sliding block body (1), the left end and the right end of the forming groove (4) are provided with ball grooves (6) arranged at the upper end and the lower end of the forming groove, a first screw hole (7) arranged on the sliding block body (1) is arranged between the upper end and the lower end of the through hole (5), the upper side of the front end and the rear end of the sliding block body (1) is provided with a left second screw hole and a right second screw hole (8), the front end and the rear end of the sliding block body (1) are provided with backflow covers (9), the upper end of the backflow cover, the lower end of the backflow cover (9) is provided with a sliding groove (11) corresponding to the forming groove (4), the guide rail (2) is connected to the inner side of the sliding groove (11) in a sliding mode, the sliding groove (12) is formed in the left end and the right end of the guide rail (2), the limiting grooves (13) are formed in the left side and the right side of the middle end of the guide rail (2), the upper connecting portion (14) used for connecting the backflow cover (9) is arranged at the upper end of the sliding groove (11) in the front and at the back, first clamping grooves (15) located at the upper end of the guide rail (2) are formed in the left side and the right side of the lower end of the upper connecting portion (14), first sealing strips (16) are clamped in the first clamping grooves (15), a first shielding portion (17) is arranged at the lower end of the first sealing strips (16), the first shielding portion (17) is in contact connection with the upper end of the guide rail (2), front and back the sliding tray (11) lower extreme left and right sides is equipped with the lower connecting portion (19) of connecting front and back backward the backward flow lid (9), connecting portion (19) sliding connection down in spacing groove (13), connecting portion (19) lower extreme is opened down has second draw-in groove (20), the joint has second sealing strip (21) in second draw-in groove (20), second sealing strip (21) lower extreme is equipped with second shielding portion (22), second shielding portion (22) with spacing groove (13) lower extreme contact is connected, both ends are equipped with fixed part (23) around first sealing strip (16) and the second sealing strip (21), around the backward flow lid (9) both ends are opened has backward flow hole (24) that correspond with through-hole (5), around be equipped with between backward flow hole (24) and be located back flow (25) in through-hole (5), be equipped with backflow passageway (26) in back flow (25), the upper end and the lower end of the backflow channel (26) are provided with first fixing grooves (27), the backflow cover (9) is provided with first sliding grooves (28) corresponding to the ball grooves (6), backflow parts (29) located at the front end and the rear end of the backflow cover (9) are arranged between the backflow holes (24) and the first sliding grooves (28), the upper end of the upper connecting part (14) is provided with second sliding grooves (30) at the left end and the right end and the left end and the right end of the lower connecting part (19) respectively, the first sliding grooves (28), the second sliding grooves (30) and the upper end of the first sliding grooves (28), the sliding grooves (12) form sliding channels (32), chain belts (65) are arranged in the backflow channel (26) and the sliding channels (32), the included angles between the movement planes of the chain belts (65) and the horizontal plane are more than or equal to 15 degrees, the upper end of the second fixing grooves (34) are, third fixing grooves (35) are formed in the upper end and the lower end of the middle connecting part (18), and fourth fixing grooves (36) are formed in the outer sides of the second sliding grooves (30) at the lower ends of the middle connecting part;

the forming groove (4) lower extreme left and right sides is equipped with a plurality of and opens and be in anti-moving groove (37) on slider body (1), it is located to be equipped with a plurality of on lower connecting portion (19) anti-moving portion (38) in anti-moving groove (37), front and back backflow lid (9) outside is equipped with sealed lid (39), and sealed lid (39) inboard is equipped with mounting groove (40), backflow lid (9) are located mounting groove (40) inboard, backflow portion (29) outside is equipped with backward flow groove (41) of opening on mounting groove (40), sealed lid (39) upper end is opened has third screw hole (42) that correspond with second screw hole (8), third screw hole (42) outside is equipped with countersunk head hole (43) of opening on sealed lid (39), both ends are equipped with fixed orifices (44) that correspond with fabrication hole (10) about sealed lid (39), both ends are opened about sealed lid (39) have and are corresponded with first draw-in groove (15) and second draw-in groove (20) respectively A third clamping groove (45), a fixing groove (46) formed in a sealing cover (39) is formed in the outer side of the third clamping groove (45), the front end and the rear end of the first sealing strip (16) are connected to the upper end of the third clamping groove (45), the front end and the rear end of the second sealing strip (21) are connected to the lower end of the third clamping groove (45), a front fixing portion (23) and a rear fixing portion (23) are connected to the inner side of the fixing groove (46) in a clamping mode, a protective cover (47) is arranged on the outer side of the sealing cover (39), first positioning portions (48) are arranged on the left end and the right end of the first positioning portion (48), positioning holes (49) formed in the inner side of the protective cover (47) are formed in the outer side of the first positioning portion (48), connecting holes (50) corresponding to the fixing holes (44) are formed in the left end and the right end of the protective cover (47), positioning grooves (, the left end and the right end of the end cover (52) are provided with enlarged holes (53) corresponding to the connecting holes (50), and the outer sides of the enlarged holes (53) are provided with second positioning parts (54) located in the positioning grooves (51).

2. The novel linear slide of claim 1, wherein: the inner side of the chain belt (65) is clamped with a ball (68).

3. The novel linear slide of claim 1, wherein: the slider body (1) is made of metal materials, and the backflow cover (9), the backflow pipe (25), the upper connecting portion (14), the middle connecting portion (18) and the lower connecting portion (19) are integrated with the slider body (1) through injection molding.

4. The novel linear slide of claim 1, wherein: an oil inlet hole (55) positioned between the left and right third screw holes (42) is formed in the center of the upper end of the sealing cover (39), first oil passages (56) which are formed in the inner sides of the sealing cover (39) are formed in the left and right ends of the inner side of the oil inlet hole (55), the first oil passages (56) are positioned on the upper side of the third screw holes (42), second oil passages (57) which are formed in the upper end of the inner side of the mounting groove (40) are connected to the outer sides of the left and right first oil passages (56), third oil passages (58) which are formed in the left and right ends of the inner side of the mounting groove (40) are connected to the outer sides of the left and right second oil passages (57), the lower end of each third oil passage (58) penetrates through the fixing hole (44) and is positioned on the outer side of the return groove (41), a fourth oil passage (59) corresponding to the third oil passage (58) is formed in the outer side of the return cover, the oil filling device is characterized in that a placing hole (61) corresponding to the oil inlet hole (55) is formed in the center of the upper end of the protective cover (47), a placing groove (62) formed in the protective cover (47) is formed in the outer side of the placing hole (61), an oil filling hole (63) corresponding to the placing hole (61) is formed in the center of the upper end of the end cover (52), and a boss portion (64) located in the placing groove (62) is formed in the inner side of the oil filling hole (63).

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