CN220073896U - Screw slipway module - Google Patents

Abstract

A screw sliding table module comprises a linear track body, a screw, a sliding seat and a plurality of balls. The screw is arranged on the linear track body. The sliding seat is arranged on the linear track body in a sliding way and comprises a sliding seat body, two inner dustproof pieces, two end covers and two end dustproof pieces. The slide base body comprises a through groove, two buckling grooves, a first ball circulation channel and a second ball circulation channel, the screw rod penetrates through the through groove, and the two buckling grooves are respectively formed in two opposite ends of the through groove. The two inner dustproof pieces respectively comprise a body part and a buckling part, and the buckling part extends radially from the body part. The two inner dustproof pieces are respectively buckled in the two buckling grooves through buckling parts. The two end covers are arranged at the two opposite ends of the sliding seat body. The two-end dustproof piece is arranged on the two end covers. The first ball rolls in the first ball circulation passage. The second balls roll in the second ball circulation passage.

Description

Screw slipway module

Technical Field

A screw slipway module, in particular a screw slipway module with an inner dust-proof piece.

Background

The screw sliding table module can be applied to working machine tables such as lathes, grinding machines, automatic devices, manufacturing equipment and the like. However, the conventional screw sliding table module is only provided with a dust-proof member at the end or side, so that dust or foreign matter entering the inside of the sliding seat is not easy to be removed, and dust or foreign matter accumulated in the sliding seat over time may cause damage to the screw sliding table module.

Disclosure of Invention

In view of the above, according to one embodiment, a screw slipway module is provided, which includes a linear rail body, a screw, a slide and a plurality of balls. The screw is arranged on the linear track body. The sliding seat is arranged on the linear track body in a sliding way and comprises a sliding seat body, two inner dustproof pieces, two end covers and two end dustproof pieces. The slide base body comprises a through groove, two buckling grooves, a first ball circulation channel and a second ball circulation channel which are penetrated in the long shaft direction, the screw rod penetrates through the through groove, and the two buckling grooves are respectively annularly formed at two opposite ends of the through groove. The second inner dustproof piece comprises a body part and a buckling part respectively, and the buckling part extends annularly from the body part towards the radial direction and can elastically deform relative to the body part. The two inner dustproof pieces are respectively buckled in the two buckling grooves through buckling parts. The two end covers are respectively arranged at the first end and the second end of the sliding seat body which are opposite along the long axis direction. The two end dustproof pieces are respectively arranged on the two end covers. The first balls roll in the first ball circulation channel to circulate and roll in the screw and the sliding seat. The plurality of second balls roll in the second ball circulation channel so as to circulate and roll in the linear track body and the sliding seat.

In some embodiments, the two inner dust-proof parts respectively include an assembling convex part, the penetrating groove includes an assembling concave part, and the assembling convex part protrudes from one side of the body part and is correspondingly assembled in the assembling concave part.

In some embodiments, the two inner dust-proof parts respectively comprise a neck part, and the neck part extends from the buckling part along the long axis direction and is gradually reduced.

In some embodiments, the neck of the inner dust guard has a plurality of slots arranged annularly about the long axis.

In some embodiments, the outer diameters of the two inner dustproof pieces and the buckling groove are slightly larger than the outer diameter of the penetrating groove.

In some embodiments, the two inner dustproof pieces respectively comprise scraping brush parts protruding towards the direction opposite to the extending direction of the buckling parts and corresponding to the threads of the screw rods.

In some embodiments, the sliding seat further includes two side dust-proof pieces respectively disposed on a first side and a second side of the sliding seat body parallel to the long axis direction and located on opposite sides of the through slot, and at least a portion of the two side dust-proof pieces is located on the linear rail body.

In some embodiments, the two side dust-proof pieces extend along the direction parallel to the sliding base body respectively and cover the side surfaces of the two side dust-proof pieces respectively.

In some embodiments, the two-sided dust guard extends beyond the two-sided dust guard.

In some embodiments, the two-end dust-proof piece comprises a hole part and a dust-proof flange, and the dust-proof flange extends along the long axis direction from the periphery of the second hole part.

In some embodiments, the dust flange tapers in the long axis direction to cover a partial aperture.

In some embodiments, the sliding device further comprises another sliding seat slidably disposed on the linear rail body, wherein the other sliding seat comprises another sliding seat body, another two inner dustproof pieces, another two end covers and another two end dustproof pieces. The other slide seat body comprises another through groove, another two fastening grooves, another first ball circulation channel and another second ball circulation channel which are penetrated along the long axis direction, the screw rod is penetrated in the other through groove, and the other two fastening grooves are respectively annularly arranged at two opposite ends of the other through groove. The other two inner dustproof pieces respectively comprise another body part and another buckling part, the other buckling part extends annularly and radially from the other body part and can elastically deform relative to the other body part, and the other two inner dustproof pieces are respectively buckled in the other two buckling grooves through the other buckling part. The other two end covers are respectively arranged at the other first end and the other second end of the other slide seat body which are opposite along the long axis direction. The other two end dustproof pieces are respectively arranged on the other two end covers. The first balls roll in the first ball circulation channel to circulate the screw rod and the sliding seat. The second balls roll in the second ball circulation channel to circulate and roll in the linear track body and the sliding seat. The screw is provided with two thread grooves in opposite directions, and the sliding seat and the other sliding seat are respectively assembled corresponding to one of the thread grooves, so that the sliding seat and the other sliding seat respectively move towards opposite sides along the long axis direction.

In some embodiments, the sliding device further comprises another sliding seat slidably disposed on the linear rail body, and the other sliding seat comprises another sliding seat body, another two end covers and another two end dustproof pieces. The other slide seat body comprises another through groove and another second ball circulation channel which are penetrated along the long axis direction, and the screw rod is penetrated in the other through groove. The other two end covers are respectively arranged at the other first end and the other second end of the other slide seat body which are opposite along the long axis direction. The other two end dustproof pieces are respectively arranged on the other two end covers. The second balls roll in the second ball circulation channel to circulate and roll in the linear track body and the sliding seat. The screw is provided with a single-direction thread groove, and the slide seat and the other slide seat are connected with each other in a linkage mode and are arranged in the thread groove, so that the slide seat and the other slide seat move towards the same side along the long axis direction.

In summary, according to an embodiment, a screw sliding table module is provided, when an inner dust-proof member is fastened to a fastening slot along a long axis direction, a fastening portion of the inner dust-proof member abuts against an inner wall of the slot, so that the fastening portion is elastically deformed, and the inner dust-proof member is fastened to the fastening slot. Therefore, the inner dustproof piece can be buckled into the sliding seat easily through the buckling part which can elastically deform, so that the function of cleaning dust or foreign matters inside the sliding seat can be provided.

Drawings

FIG. 1 is a perspective view of a screw slipway module according to a first embodiment;

FIG. 2 is an exploded view of a screw slipway module according to a first embodiment;

FIG. 3 is a cross-sectional view of a screw slipway module according to a first embodiment;

FIG. 4 is a schematic view of an inner dust-proof member according to a first embodiment;

FIG. 5 is a schematic view of an inner dust guard according to a second embodiment;

FIG. 6 is a partial schematic view of a side screw slipway module according to a third embodiment;

FIG. 7 is a schematic view of an end dust guard according to a fourth embodiment;

fig. 8 is a schematic view of an end dust-proof member according to a fifth embodiment.

[ symbolic description ]

1 screw slipway module

10 Linear Rail body

11 track groove

30 screw rod

31,32 thread grooves

50:

51 slide base body

51A first end

51B second end

511 through the groove

511A first side

511B second side

512 snap groove

513 assembling concave portion

514 assembly groove

515 internal circulation tank

516, inner circulation channel

517 external circulation tank

518 external circulation channel

52 inner dust-proof piece

521 body portion

522 snap-fit portion

523 assembling convex part

524 neck portion

5241 grooving

525 scraping brush part

53 end cap

54 end dust guard

541 hole portion

542 dustproof flange

55 side dust guard

56 circulation piece

561 reflux bend

57 reflow element

70 first ball

80 second ball

X in the long axis direction

Detailed Description

Please refer to fig. 1 to 3. Fig. 1 is a perspective view of a screw slipway module according to a first embodiment. Fig. 2 is an exploded view of a screw slipway module according to a first embodiment. Fig. 3 is a cross-sectional view of a screw slipway module according to a first embodiment. The screw slide module 1 includes a linear rail body 10, a screw 30, a slider 50, a plurality of first balls 70, and a plurality of second balls 80.

The linear rail body 10 is provided with rail grooves 11 on the left and right sides, and here, one rail groove 11 is provided, but the present utility model is not limited thereto, and two or more rail grooves 11 may be provided on both sides, respectively, according to design requirements.

Opposite ends of the screw 30 are provided at both ends of the linear rail body 10, respectively, and are disposed in parallel with the rail grooves 11.

The sliding base 50 is slidably disposed on the linear rail body 10, and includes a sliding base body 51, two inner dustproof members 52, two end caps 53 and two end dustproof members 54. The slide body 51 includes a through groove 511, two fastening grooves 512, a first ball circulation path and a second ball circulation path penetrating along a long axis direction X (i.e., X axis). The screw 30 is inserted into the through groove 511 along a direction parallel to the major axis direction X, and the two fastening grooves 512 are respectively formed at opposite ends of the through groove 511 in a ring shape with the major axis as a center. In the first embodiment, the outer diameter of the snap groove 512 is slightly larger than the outer diameter of the through groove 511.

Fig. 4 is a schematic view of an inner dust-proof member according to a first embodiment. As can be seen from fig. 4, the two inner dust-proof members 52 each include a main body 521 and a locking portion 522, and the locking portion 522 extends radially from the main body 521 in a ring shape with the long axis as the center and is elastically deformable with respect to the main body 521. The two inner dustproof members 52 are respectively locked in the two locking grooves 512 by the locking parts 522. For example, when the inner dust-proof member 52 is to be fastened to the fastening slot 512, the inner dust-proof member 52 is pushed into the through slot 511 along the long axis direction X, and the fastening portion 522 is pushed against the inner wall of the through slot 511 to generate elastic deformation, so that the fastening portion 522 is continuously forced toward the through slot 511, and when the fastening portion 522 reaches the fastening slot 512, the fastening portion 522 is no longer pushed against the inner wall of the through slot 511 to recover and is accommodated in the fastening slot 512.

Referring to fig. 2 and 3 again, the sliding base 50 includes two circulating elements 56, the sliding base body 51 includes assembling grooves 514, the two circulating elements 56 are respectively disposed in the two assembling grooves 514, in this embodiment, the circulating elements 56 are disposed corresponding to the number of the assembling grooves 514, each circulating element 56 includes a return bend 561, and the sliding base body 51 includes an inner circulating groove 515 and an inner circulating channel 516. In the present embodiment, the two return bends 561, the inner circulation groove 515, and the inner circulation passage 516 form a first ball circulation passage. The first balls 70 roll the first ball circulation path and circulate between the screw 30 and the slide 50, so that the slide 50 moves on the screw 30. Further, the screw 30 may include a thread groove 31, and in the present embodiment, the thread groove 31 corresponds to the internal circulation groove 515 to form a passage for the first balls 70 to roll, but not limited thereto, the screw 30 may not be provided with the thread groove 31. In addition, the first ball 70 is omitted from fig. 2 and is shown in fig. 3.

The two end caps 53 are respectively disposed at a first end 51A and a second end 51B of the slider body 51 opposite to each other along the long axis direction X. The two end dust-proof pieces 54 are respectively arranged on the two end covers 53. The screw 30 passes through the two end caps 53 and the two end dust-proof members 54, and dust or foreign matter on the screw 30 or outside the screw 30 can be prevented from entering the end caps 53 by the end dust-proof members 54.

As can be seen from fig. 2, the slide 50 includes a plurality of return members 57, the return members 57 are respectively disposed at a first end 51A and a second end 51B of the slide body 51, the slide body 51 includes an outer circulation groove 517 and an outer circulation channel 518, and in this embodiment, the outer circulation groove 517, the return members 57 and the outer circulation channel 518 form a second ball circulation channel. The second balls 80 roll in the second ball circulation path and circulate between the linear rail body 10 and the slide 50, so that the slide 50 slides on the linear rail body 10. Further, in the present embodiment, the outer circulation groove 517 corresponds to the track groove 11 to form a passage through which the second balls 80 roll, but the present utility model is not limited thereto, and the linear track body 10 may not be provided with the track groove 11.

Specifically, the inner dust-proof member 52 of the screw sliding table module 1 can be easily locked into the sliding seat body 51 by the elastic deformation, and the user can elastically deform the locking portion 522 and lock into the locking groove 512 only by applying force to the inner dust-proof member 52 along the long axis direction X and pushing into the through groove 511. In this way, in addition to preventing dust or foreign matter by the end dust piece 54, even if dust or foreign matter enters the slider body 51, it can be protected by the inner dust piece 52.

Further, referring to fig. 1 again, in the present embodiment, the screw sliding table module 1 is provided with two sliding seats 50. The other carriage is of substantially the same construction as carriage 50. However, the screw 30 has two screw grooves 31,32 in opposite directions at opposite ends, i.e., left-handed and right-handed screw grooves. The two sliding bases 50 are respectively assembled corresponding to one of the thread grooves, so that the two sliding bases 50 can respectively move towards opposite sides along the long axis direction, and the devices assembled on the sliding bases 50 can move towards different directions according to requirements. In addition, for example, if more than two carriages moving to the same side are used to move the larger object, the larger object is spanned on the plurality of carriages, and typically, one of the carriages is provided with balls rolling in the ball channel to drive the other carriages to move. Therefore, it is also only necessary to provide dust-proof means for the slide provided with the balls. However, since the two sliding carriages 50 of the present embodiment respectively move toward opposite sides, the balls are required to be disposed in the ball passages, and in order to avoid the ball passages from being affected by external dust or dirt, a good dust-proof effect can be achieved by the inner dust-proof member 52.

Further, the inner dust-proof member 52 can reduce or avoid increasing the overall length of the carriage 50 in addition to the dust-proof effect. For example, a common sliding seat provides a dust-proof effect by arranging a dust-proof piece on the outer side. If the dustproof effect is to be improved, more mechanisms are overlapped on the outer side, so that the size of the sliding seat is increased, and the movable travel of the sliding seat on the screw rod with fixed length is reduced. However, the dustproof effect can be achieved without increasing the size of the sliding seat by assembling the dustproof piece in the available space inside the sliding seat. Therefore, in the present embodiment, by assembling the inner dust-proof member 52 in the slider 50, the dust-proof effect is achieved while also effectively utilizing the space inside the slider 50, reducing the size of the slider 50 and increasing or avoiding the reduction of the moving stroke of the slider 50.

In addition, as described above, since the sliding seat 50 is not limited to move toward the opposite side, if more than two sliding seats moving toward the same side are used to move the larger object, the larger object is spanned on the sliding seats, and usually only one sliding seat needs to be provided with the second ball circulation channel to move under the driving of the other sliding seat. For example, in the case of fig. 1, when two carriages are to move in the same direction, the screw 30 may have a thread groove 31 at one end and a thread groove in the same spiral direction as the thread groove 31 at the other end. And the slide 50 as described above is provided at the end where the screw groove 31 is provided. At the other end, a further carriage is provided which does not have a first ball circulation channel, but only a second circulation channel. Therefore, only the first ball circulation channel is arranged on one sliding seat 50, and the sliding seat 50 provided with the first ball circulation channel can drive the other sliding seat to move along the long axis direction. Further, since the other carriage is moved by the carriage 50, there is no need to provide a first ball circulation path, and since there is no additional first ball 70 to roll between the screw 30 and the other carriage, there is no need to provide an inner dust-proof member in the other carriage.

Please continue to refer to fig. 2 while simultaneously referring to fig. 4. For the respective slide 50, the two inner dust-proof members 52 respectively include an assembling convex portion 523, and the penetrating groove 511 includes an assembling concave portion 513. Taking the assembly recess 513 of the first end 51A of the slider body 51 as an example, the assembly recess 513 is opened from the first end 51A of the slider body 51 and extends in the axial direction X to be communicated with the fastening groove 512. The fitting convex portion 523 protrudes from the body 521 and is correspondingly assembled in the fitting concave portion 513. When the inner dust-proof member 52 is to be fastened to the fastening groove 512, the assembling protrusion 523 corresponds to the assembling recess 513, and the inner dust-proof member 52 is forced to be pushed into the through groove 511, and the inner dust-proof member 52 can be prevented from rotating in the through groove 511 by the cooperation of the assembling protrusion 523 and the assembling recess 513, so that the smoothness of the assembling process is affected.

The two inner dust-proof pieces 52 respectively include a neck 524, and the neck 524 extends from the fastening portion 522 along the long axis direction X and tapers. Referring to fig. 2, taking the first end 51A side of the slider body 51 as an example, the neck 524 of the inner dust-proof member 52 on the first end 51A side extends toward the second end 51B side and tapers toward the center, and when the inner dust-proof member 52 is pushed into the through slot 511, the tapered slope will abut against the inner wall of the through slot 511, so as to elastically deform the fastening portion 522.

The two inner dust-proof members 52 each include a scraping portion 525 protruding in a direction opposite to the extending direction of the engaging portion 522 and corresponding to the thread of the screw 30. In this way, in addition to preventing entry of dust or foreign matter by the inner dust-proof member 52, dust or foreign matter on the thread of the screw 30 can be removed by the scraping portion 525 while the slider 50 is moving. Various embodiments of the inner dust-proof member 52 are provided, and the other inner dust-proof member 52 is described in detail below.

Referring again to fig. 1-2. In the first embodiment, the sliding base 50 further includes two side dust-proof members 55, the two side dust-proof members 55 are disposed along the long axis direction X, the two side dust-proof members 55 are respectively disposed on the first side 511A and the second side 511B of the sliding base body 51, which are located on opposite sides of the through slot 511 in parallel to the long axis direction X, and at least a portion of the two side dust-proof members 55 are located on the linear rail body 10. Taking the first side 511A as an example, a portion of the side dust-proof member 55 abuts against the first side 511A, and another portion extends and bends to abut against the linear rail body 10, so as to close the contact position between the sliding base 50 and the linear rail body 10 as shown in fig. 1, and prevent dust or foreign matter from entering from the gap.

Further, the two side dust-proof members 55 extend along the long axis direction X to be aligned with the two end dust-proof members 54, and cover the side surfaces of the two end dust-proof members 54, respectively, so as to close the positions where the two end dust-proof members 54 meet the end caps 53, and prevent dust or foreign matters from entering from the gaps. Various embodiments of the side dust-proof member 55 are provided, and other embodiments of the side dust-proof member 55 will be described in detail below.

Various embodiments of the inner dust-proof member 52 are shown in FIG. 5. Fig. 5 is a schematic view of an inner dust-proof member according to a second embodiment. In the second embodiment, the neck 524 of the two inner dust-proof pieces 52 has a plurality of slots 5241, and the plurality of slots 5241 are annularly arranged on the neck 524 around the long axis to space the neck 524 into a plurality of neck segments. When the inner dust-proof piece 52 is pushed into the through groove 511, each neck section is propped against the inner wall of the through groove 511 to generate elastic deformation respectively. In this way, the degree of freedom in elastic deformation of the inner dust-proof member 52 is increased, and the user can apply a small force to click the inner dust-proof member 52. Further, since the inner dust-proof member 52 enhances the degree of freedom of elastic deformation by the plurality of neck segments, it may also be made of a stronger or harder material.

Various embodiments of the side dust-proof member 55 are shown in fig. 6. Fig. 6 is a partial schematic view of a side screw slipway module according to a third embodiment. In the first embodiment, the two-side dust-proof members 55 are each extended in the long axis direction X to be aligned with the two-end dust-proof members 54, but are not limited thereto. In the third embodiment, the two side dust-proof members 55 extend beyond the two end dust-proof members 54 in the long axis direction X, further improving the coverage of the side dust-proof members 55 and increasing the protection effect against dust or foreign matter.

To enhance the dust-proof effect of the end dust-proof member 54, the structure of the end dust-proof member 54 has various embodiments. Please refer to fig. 7. Fig. 7 is a schematic view of an end dust guard according to a fourth embodiment. The both-end dust-proof member 54 includes hole portions 541 and dust-proof flanges 542, respectively. The hole 541 serves as an oil hole, and the dust flange 542 extends from the peripheral edge of the hole 541 in the longitudinal direction X so that the dust flange 542 having a hollow cylindrical shape surrounds the hole 541. In this way, dust or foreign matter is prevented from entering the end cap 53 shown in fig. 1 and 2 from the hole 541 in the radial direction.

In the fourth embodiment, the dust-proof flange 542 having a hollow cylindrical shape is exemplified, but is not limited thereto. Please refer to fig. 8. Fig. 8 is a schematic view of an end dust-proof member according to a fifth embodiment. The dust-proof flange 542 extends in the long axis direction X and tapers inwardly, forming a dust-proof flange 542 in the shape of a hollow cone so as to cover the partial hole 541. Thus, in addition to the radial direction, the effect of preventing dust or foreign matter from entering the end cap 53 shown in fig. 1 and 2 can be provided in the axial direction at the same time.

Claims (13)

1. A screw slipway module, comprising:

a linear rail body;

the screw is arranged on the linear track body;

the sliding seat is arranged on the linear track body in a sliding way, and comprises:

the sliding seat body comprises a through groove, two buckling grooves, a first ball circulation channel and a second ball circulation channel which are penetrated along the long axis direction, wherein the screw rod penetrates through the through groove, and the two buckling grooves are respectively annularly formed at two opposite ends of the through groove;

the two inner dustproof pieces respectively comprise a body part and a buckling part, the buckling part extends annularly and radially from the body part and can elastically deform relative to the body part, and the two inner dustproof pieces are respectively buckled with the two buckling grooves through the buckling part;

the two end covers are respectively arranged at a first end and a second end of the sliding seat body which are opposite along the long axis direction; a kind of electronic device with high-pressure air-conditioning system

The two end dustproof pieces are respectively arranged on the two end covers;

the first balls roll in the first ball circulation channel so as to circularly roll on the screw rod and the sliding seat; and

the second balls roll in the second ball circulation channel to circulate and roll in the linear track body and the sliding seat.

2. The screw slipway module as claimed in claim 1, wherein the two inner dustproof members each comprise an assembling protrusion, the through slot comprises an assembling recess, and the assembling protrusion protrudes from one side of the body and is correspondingly assembled in the assembling recess.

3. The screw slipway module as claimed in claim 1, wherein the two inner dust-proof parts each comprise a neck portion extending from the locking portion in the longitudinal direction and tapering.

4. A screw slide module according to claim 3 wherein the neck of the two inner dust-proof members has a plurality of slots annularly arranged about the long axis in the neck.

5. The screw slipway module as claimed in claim 1, wherein the outer diameter of the two inner dust-proof parts and the snap groove is slightly larger than the outer diameter of the through groove.

6. The screw slipway module as claimed in claim 1, wherein the two inner dustproof members each comprise a wiper portion protruding in a direction opposite to the extending direction of the locking portion and corresponding to a thread of the screw.

7. The screw slipway module of claim 1, wherein the slide further comprises two side dust-proof members respectively disposed on a first side and a second side of the slide body parallel to the long axis direction and located on opposite sides of the through slot, and at least a portion of the two side dust-proof members are located on the linear rail body.

8. The screw slipway module as claimed in claim 7, wherein the two side dust-proof members extend in a direction parallel to the slide body, respectively, and cover the side surfaces of the two side dust-proof members, respectively.

9. The screw slide module of claim 8 wherein the two side dust pieces extend beyond the two end dust pieces.

10. The screw slipway module as claimed in claim 1, wherein the two end dust-proof parts each comprise a hole portion and a dust-proof flange extending from the periphery of the hole portion in the longitudinal direction.

11. The screw slide module of claim 10, wherein the dust flange tapers in the direction of the long axis to cover a portion of the aperture.

12. The screw skid module of claim 1, further comprising a further slide slidably disposed on the linear rail body, the further slide comprising:

the other sliding seat body comprises another through groove, another two buckling grooves, another first ball circulation channel and another second ball circulation channel which are penetrated along the long axis direction, the screw rod penetrates through the other through groove, and the other two buckling grooves are respectively annularly arranged at two opposite ends of the other through groove;

the other two inner dustproof pieces respectively comprise another body part and another buckling part, the other buckling part extends annularly and radially from the other body part and can elastically deform relative to the other body part, and the other two inner dustproof pieces are respectively buckled with the other two buckling grooves through the other buckling part;

the other two end covers are respectively arranged at one other first end and one other second end of the other slide seat body which are opposite along the long axis direction; a kind of electronic device with high-pressure air-conditioning system

The other two end dustproof pieces are respectively arranged on the other two end covers;

the first balls roll in the first ball circulation channel to circulate the screw rod and the sliding seat;

the second balls roll in the second ball circulation channel to circulate and roll in the linear track body and the sliding seat;

the screw rod is provided with two thread grooves in opposite directions, and the sliding seat and the other sliding seat are respectively assembled corresponding to one of the thread grooves, so that the sliding seat and the other sliding seat respectively move towards opposite sides along the long axis direction.

13. The screw skid module of claim 1, further comprising a further slide slidably disposed on the linear rail body, the further slide comprising:

the other slide seat body comprises another through groove and a second ball circulation channel which are penetrated along the long axis direction, and the screw rod is penetrated in the other through groove;

the other two end covers are respectively arranged at one other first end and one other second end of the other slide seat body which are opposite along the long axis direction; a kind of electronic device with high-pressure air-conditioning system

The other two end dustproof pieces are respectively arranged on the other two end covers;

the second balls roll in the second ball circulation channel to circulate and roll in the linear track body and the sliding seat;

the screw rod is provided with a thread groove in a single direction, and the slide seat and the other slide seat are linked and arranged in the thread groove, so that the slide seat and the other slide seat move towards the same side along the long axis direction.