CN219571546U - Supporting device - Google Patents

Abstract

The present utility model provides a supporting device comprising: a straight column with a plurality of positioning holes; the pulley is arranged in the upright column and comprises a limit groove; a shaft unit arranged on the pulley; a stop module comprising a positioning tenon capable of reciprocating in the limit groove; the deflector rod module is arranged in the upright column and pivoted with the shaft rod unit, and can be changed between a pushing state and a releasing state relative to the pulley; when the deflector rod module is in the pushing state, the positioning tenons are accommodated in one of the positioning holes, the pulley, the stop module and the deflector rod module are fixed relative to the upright post, and when the deflector rod module is in the releasing state, the positioning tenons are separated from the positioning holes, and the pulley, the stop module and the deflector rod module can slide relative to the upright post.

Description

Supporting device

Technical Field

The utility model provides a supporting device, in particular to a supporting device capable of preventing a pulley, a cantilever set and a bearing piece from being backwashed.

Background

In order to enable a display to be carried by the conventional display supporting device to stop at random, the conventional display supporting device generally comprises a carrying member, a cantilever set, a pulley, a vertical column and a force spring, wherein the pulley is accommodated in the vertical column and can move up and down relative to the vertical column, the cantilever set is connected with the pulley, the carrying member is connected with the cantilever set and is used for carrying the display, the force spring is provided with a cylindrical part and a movable end part, the cylindrical part is arranged in the pulley, the movable end part is locked on the vertical column, and when the pulley moves up and down relative to the vertical column, the force spring can provide an elastic force to enable the display to stop at any position at random. The elastic force provided by the constant force spring is set to be balanced with the total weight of the display, the pulley, the cantilever set and the carrier (for the display to stop at any position), however, when the user removes the display from the carrier, the elastic force of the constant force spring may be far greater than the total weight of the pulley, the cantilever set and the carrier, resulting in the risk of the pulley, the cantilever set and the carrier being bumped back by the cantilever set and the carrier.

Disclosure of Invention

The present utility model provides a supporting device comprising: a riser, comprising: a housing extending along a first axis; a containing space surrounded and defined by the shell; an opening formed on the housing along the first axis and communicating with the accommodating space; and a plurality of positioning holes arranged along the first axis and formed on the inner side of the housing; the pulley is arranged in the accommodating space, extends outwards from the opening partially, can slide back and forth along a gravity direction substantially, and comprises a limit groove extending along a second axis perpendicular to the first axis; at least one elastic piece arranged in the accommodating space, two ends of which are respectively fixed on the shell and the pulley and constantly provide a pulling force opposite to the gravity direction for the pulley; the shaft lever unit comprises a rod piece and is arranged on the pulley along a third axis perpendicular to the first axis and the second axis; a stop module comprising a positioning tenon capable of reciprocating in the limit groove; the deflector rod module is at least partially arranged in the accommodating space and pivoted to the rod piece, and can be changed between a pushing state and a releasing state relative to the pulley; when the deflector rod module is in the pushing state, the deflector rod module tends to enable the positioning tenons to be contained in one of the positioning holes, so that the pulley, the stop module and the deflector rod module are fixed relative to the upright post, and when the deflector rod module is in the releasing state, the deflector rod module tends to enable the positioning tenons to be separated from the positioning holes, so that the pulley, the stop module and the deflector rod module can slide relative to the upright post.

In the foregoing supporting device, the stop module further includes a first elastic body, and the first elastic body constantly provides a first elastic force, and the first elastic force tends to separate the positioning tenon from the positioning hole.

In the foregoing supporting device, the locking module further includes a cup body and a slot, the cup body is accommodated in the limit slot and surrounds and defines the slot, the positioning tenon is accommodated in the slot and fixedly connected to the cup body, and the first elastic body is sleeved on the positioning tenon.

In the foregoing supporting device, the stop module further includes a stop plate fixedly connected to the pulley and having a through hole, the through hole is communicated with the limit slot and is penetrated by the positioning tenon, and a pulling block extending outwards from the cup body.

In the foregoing supporting device, the first elastic body is accommodated in the mortise and sleeved on the positioning tenon, and two ends of the first elastic body respectively abut against the positioning tenon and the stop plate, when the lever module is transformed from the release state to the push state, the lever module pushes the shifting block along the second axis, thereby the cup body moves towards the stop plate and simultaneously compresses the first elastic body, and the positioning tenon is accommodated in one of the positioning holes, when the lever module is transformed from the push state to the release state, the lever module releases the shifting block, the first elastic body rebounds, thereby the cup body is far away from the stop plate and the positioning tenon is separated from the positioning hole.

In the foregoing supporting device, the pulley comprises a main body and two foot plates, the foot plates extend outwards from the main body along the first axis and are spaced apart from each other, the stop module is disposed on the main body, and the lever module is disposed between the foot plates.

In the foregoing supporting device, the pulley further comprises two through holes, a fixing block and a cover plate, wherein each through hole is formed on the foot plate in a penetrating manner along the third axis, the rod member is arranged in the through hole in a penetrating manner, the fixing block is formed at the tail end of the foot plate, and the cover plate is fixedly connected to the fixing block and the vehicle body and is positioned at the front side of the housing, so that the opening is covered.

In the foregoing supporting device, the cover plate has an operation opening extending along the first axis and communicating with the opening, the lever module extends partially outward from the operation opening, the lever module is adjacent to a bottom end of the operation opening when the lever module is in the released state, and the lever module is far away from the bottom end of the operation opening when the lever module is in the pushed state.

In the foregoing supporting device, the shaft unit further includes two friction plates and two fasteners, the friction plates are sleeved on the rod and are respectively located between the foot boards and the lever module, when the stopping module is changed between the pushing state and the releasing state, the friction plates generate friction, and the fasteners are respectively buckled at two ends of the rod and are located at two opposite outer sides of the foot boards, so that the rod is prevented from being separated from the pulley.

In the foregoing supporting device, the lever module further includes a second elastic body, which constantly provides a second elastic force, and the second elastic body is sleeved on the rod and tends to keep the lever module in the pushing state.

In the foregoing supporting device, the lever module includes a pivot base and a lever block, the pivot base has a seat plate, two wing plates, a top plate and a stop block, the wing plates are respectively formed by extending vertically from two opposite sides of the seat plate, the top plate is formed by extending vertically from the top side of the seat plate and is fixedly connected between the wing plates, the stop block is formed by extending outwards from the top plate and is correspondingly abutted against the lever block, and the lever block is fixedly connected to the seat plate and extends outwards from the opening partially.

In the foregoing supporting device, the pivot seat further has two through holes, each through hole is formed through the wing plate along the third axis, and the rod is disposed through the through hole, so that the pivot seat can rotate relative to the pulley about the rod.

In the foregoing supporting device, the first elastic body is a compression spring, and the second elastic body is a torsion spring.

In the foregoing supporting device, when the lever module is in the pushing state, the stop block limits the lever block, and when an external force is applied to the lever block, the pivot block can rotate relative to the pulley about the rod as an axis, and the lever module enters the releasing state, the stop block releases the lever block along the second axis, and when the external force is removed, the second elastic body resets the pivot block, and the lever module returns to the pushing state.

Drawings

Fig. 1 is an overall schematic view of the support device of the present utility model.

Fig. 2 is an exploded view of a portion of the components of the support device of the present utility model.

Fig. 3 is an overall schematic view of the sled in the support apparatus of the present utility model.

Fig. 4 is an exploded view of the various views of a portion of the components of the support device of the present utility model.

FIG. 5 is a schematic cross-sectional view of a lever module in an ejection state in the supporting device of the present utility model.

FIG. 6 is a schematic cross-sectional view of a lever module in a released state in the support device of the present utility model.

Description of the main reference numerals

1000 support means 42 movable end

2000 load-bearing cantilever module 5: shaft unit

2100 cantilever set 51 rod member

2200 carrier 52 friction plate

3000 display 53 fastener

4000 working face 6 stop module

1, chassis 61, cup body

2 upright post 62, mortise

21 casing 63 positioning tenon

211 locking hole 631 head

22 accommodating space 632 body

23 opening 64 stop plate

24 positioning holes 641 are perforated

3 pulley 65, pulling block

31 vehicle body 66 first elastomer

32 foot plate 7, deflector rod module

33 through hole 71 pivoting seat

34 fixing block 711, seat plate

35 limit groove 712 wing plate

351 large diameter section 713 top plate

352 small diameter section 714 stop block

353 elongated notched region 715 through-hole

36 pivoting table 72, lever block

37 recess 73 second elastomer

38, cover plate G, gravity direction

381 operation port X1 first axis

3811 bottom end X2 second axis

4 elastic member X3 third axis

41, a cylindrical portion.

Detailed Description

Referring to fig. 1 and 2, the supporting device 1000 of the present utility model supports a display 3000 on a working surface 4000 through a supporting cantilever module 2000, the supporting device 1000 includes a chassis 1, a vertical column 2, a pulley 3, an elastic member 4 (as shown in fig. 5), a shaft unit 5, a stopping module 6 and a driving lever module 7, wherein the chassis 1 is disposed on the working surface 4000, the vertical column 2 is disposed on the chassis 1, the pulley 3 is slidably disposed on the vertical column 2, the elastic member 4 is disposed in the vertical column 2, the shaft unit 5 is disposed on the pulley 3, the stopping module 6 is disposed on the pulley 3, the driving lever module 7 is pivotally connected to the shaft unit 5, the supporting cantilever module 2000 includes a cantilever set 2100 and a bearing member 2200, the cantilever set 2100 is disposed on the pulley 3, and the bearing member 2200 is disposed on the cantilever set 2100 and is used for supporting the display 3000. The structure of each element and the connection relationship between each other will be described in detail below, wherein a portion of the drawings are drawn with a first axis X1, a second axis X2, a third axis X3, and a gravity direction G, the first axis X1 is parallel to the gravity direction G, the second axis X2 is perpendicular to the first axis X1, and the third axis X3 is perpendicular to the first axis X1 and the second axis X2.

The chassis 1 can be firmly mounted on the working surface 4000 in a clamping manner, and in this embodiment, a table clamp clamped at the edge of a table plate is taken as an example, but the utility model is not limited thereto, and the chassis 1 may also be a tray body placed on the working surface 4000 or a fixing seat locked on a wall surface.

The upright post 2 comprises a housing 21, a receiving space 22 (fig. 5), an opening 23 and a plurality of positioning holes 24, wherein the housing 21 is a hollow long column extending substantially along the first axis X1, one end of the hollow long column is disposed on the chassis 1, the other end of the hollow long column is provided with a locking hole 211, the receiving space 22 is surrounded and defined by the housing 21, and the opening 23 extends along the first axis X1 to form a side surface of the housing 21 and is communicated with the receiving space 22. The positioning holes 24 are arranged up and down along the first axis X1 at intervals, are formed on the inner side of the housing 21, and are far from the locking holes 211. In the present embodiment, the housing 21 extends perpendicularly to the working surface 4000, but the present utility model is not limited thereto, and the housing 21 may extend slightly inclined to the working surface 4000.

Referring to fig. 3 and 4, the pulley 3 includes a main body 31, two foot plates 32, two through holes 33, a fixing block 34, a limiting slot 35, a pivot table 36, two concave portions 37 and a cover 38. The vehicle body 31 is a generally elongated body, is disposed in the accommodating space 22, and can slide up and down along the gravity direction G (the first axis X1 may also be the first axis X1) relative to the housing 21, for example, can reciprocate in the housing 21 by a sliding rail (not shown) disposed in the housing 21, or can reciprocate in the housing 21 by the cooperation of a sliding block and a sliding rail. The leg plates 32 extend outward from the bottom side of the vehicle body 31 along the first axis X1 and are spaced apart from each other (substantially form a frame). The through holes 33 are formed through the foot plate 32 along the third axis X3, respectively, and correspond to each other. A fixing block 34 is formed at the end of the foot plate 32. The limiting groove 35 is formed between the foot plates 32 and extends along the second axis X2 and is formed with a large-diameter section 351, a small-diameter section 352 and an elongated notch 353, wherein the large-diameter section 351 is communicated with the small-diameter section 352 along the second axis X2 and is communicated with the elongated notch 353 along the first axis X1. The pivot table 36 is formed on the front side of the vehicle body 31 and spaced from the limiting slot 35, and extends outward from the opening 23 for pivoting the cantilever set 2100. The concave portions 37 are concavely formed from the rear side of the vehicle body 31, are distant from the foot plate 32, and are arranged up and down along the first axis X1, respectively. The cover 38 is used for covering the opening 23, and has two sides fixedly connected to the vehicle body 31 and the fixed block 34, respectively, and is located at the front side of the housing 21, and has an operation opening 381 extending along the first axis X1 and communicating with the opening 23, and the operation opening 381 further has a bottom end 3811.

Referring to fig. 5, the elastic member 4 is a constant force spring in the present embodiment, and has a cylindrical portion 41 and a movable end portion 42 connected to each other, wherein the cylindrical portion 41 is accommodated in one of the concave portions 37, and the movable end portion 42 is locked in the locking hole 211, so that the elastic member 4 can provide a constant pulling force to the pulley 3 opposite to the gravity direction G when the pulley 3 slides reciprocally along the gravity direction G, and further, the upward pulling force provided by the elastic member 4 (constant force spring) is approximately balanced with the total weight of the display 3000, the pulley 3, the shaft unit 5, the stop module 6, the lever module 7 and the carrying cantilever module 2000. In other embodiments, the number of the elastic members 4 and the locking holes 211 may be two, so that the elastic members 4 and the locking holes 211 are respectively accommodated in the concave portions 37 and locked in the locking holes 211, but not limited thereto, and the number of the elastic members 4 and the concave portions 37 can be adjusted according to the weight of the display 3000.

The shaft unit 5 includes a rod 51, two friction plates 52 and two fasteners 53, the rod 51 is disposed through the through hole 33 along the third axis X3, and the friction plates 52 are sleeved on the rod 51 and respectively adjacent to the inner sides of the foot plates 32. The fasteners 53 are respectively fastened to two ends of the rod 51 and located at two opposite outer sides of the foot plate 32, and can prevent the rod 51 from being separated from the pulley 3.

The stop module 6 is disposed on the vehicle body 31, and includes a cup 61, a tongue-and-groove 62, a positioning tongue 63, a stop plate 64, a shifting block 65, and a first elastic body 66, where the cup 61 is generally cylindrical and is accommodated in a large diameter section 351 of the limiting groove 35, and the tongue-and-groove 62 is defined by the cup 61 and extends along the second axis X2. The positioning tenon 63 is accommodated in the tenon groove 62 and the limiting groove 35, and is provided with a head 631 and a body 632 which are mutually connected, the head 631 is fixedly connected with the cup 61 and is also accommodated in the large-diameter section 351, and the cross-sectional area of the body 632 is smaller than that of the head 631, so that the head 631 (and the cup 61) cannot pass through the small-diameter section 352 of the limiting groove 35, and the body 632 can pass through the small-diameter section 352, thus being prone to being accommodated in one of the positioning holes 24 and being separated from the positioning hole 24 according to conditions. The stopper plate 64 is fixedly connected to the rear side of the vehicle body 31, and has a through hole 641, and the through hole 641 is correspondingly communicated with the limiting groove 35 and is penetrated by the body 632. The pulling block 65 extends outwards from the side surface of the cup 61 along the first axis X1 and is slidably disposed in the limiting groove 35 together with the cup 61, in detail, the pulling block 65 is accommodated in the elongated notch area 353 of the limiting groove 35 and at least partially protrudes outwards, and is limited by the elongated notch area 353, so that the cup 61, the positioning tenon 63 and the pulling block 65 can only reciprocate in the limiting groove 35 along the second axis X2. The first elastic body 66 is sleeved on the body 632, and is simultaneously accommodated in the mortise 62 and the limit groove 35, and two ends of the first elastic body are respectively abutted against the head 631 and the stop plate 64 to constantly provide a first elastic force, and the first elastic force tends to separate the positioning tenons 63 from the positioning holes 24. In the present embodiment, the first elastic body 66 is a compression spring.

The lever module 7 is partially disposed in the accommodating space 22, is disposed between the foot plates 32 and pivotally connected to the rod member 51, can be shifted between an ejection state and a release state relative to the sled 3, and includes a pivot seat 71, a lever block 72, and a second elastic body 73. The pivot base 71 has a seat plate 711, two wing plates 712, a top plate 713, a stopper 714 and a through hole 715. The seat plate 711 has a substantially rectangular parallelepiped shape, and the wing plates 712 are formed to extend perpendicularly outward from opposite sides of the seat plate 711. The top plate 713 is formed to extend perpendicularly outward from the top side of the seat plate 711 and to connect the wings 712 at an angle, i.e., the top plate 713 and the wings 712 are generally U-shaped. The stopper 714 is formed to extend perpendicularly outward from the top plate 713 and abuts against the dial 65 correspondingly. The through holes 715 are formed along the third axis X3 and are respectively penetrated through the wing plates 712, and the rod 51 is penetrated through the through holes, so that both sides of each friction plate 52 respectively abut against the inner side of the foot plate 32 and the outer side of the wing plates 712 (i.e. the friction plates 52 are clamped between the foot plate 32 and the wing plates 712), the pivot seat 71 can rotate relative to the pulley 3 with the rod 51 as an axis, and the friction plates 52 generate friction. The lever block 72 is generally T-shaped, is fixedly connected to the seat plate 711, and extends partially outward from the opening 23 and the operation port 381. The second elastic body 73 is sleeved on the rod 51 and is located between the wing plates 712, and two ends of the second elastic body are respectively abutted against the wing plates 712 and constantly provide a second elastic force, and the second elastic force tends to keep the deflector rod module 7 in the pushing state. In the present embodiment, the second elastic body 73 is a torsion spring.

The actuation of the lever module 7 in the ejection state (fig. 5) and the release state (fig. 6), respectively, is further described below. Referring to fig. 5, in the pushing state of the lever module 7 (the lever block 72 is horizontal), the stop block 714 limits the lever block 65, that is, pushes the lever block against the rear side relatively close to the main body 31, at this time, the first elastic body 66 is compressed by the positioning tongue 63 and the stop plate 64, the cup 61 is adjacent to the stop plate 64, and the positioning tongue 63 is accommodated in one of the positioning holes 24, so that the pulley 3, the stop module 6 and the lever module 7 are fixed relative to the upright 2, and at this time, the lever block 72 extends partially outwards from the operation opening 381 and is located approximately in the center of the operation opening 381 and is far from the bottom end 3811 of the operation opening 381. If the pushing state is to be changed to the releasing state, an external force is continuously applied to the shift lever block 72 (the shift lever block 72 is tilted), so that the pivot seat 71 can rotate relative to the pulley 3 with the rod 51 as an axis, the stop block 714 gradually releases the shift block 65 along the second axis X2 (the shift block 65 is relatively far away from the rear side of the vehicle body 31), the first elastic body 66 gradually rebounds (i.e. the first elastic force gradually becomes smaller), the cup 61 and the shift block 65 move in the limit groove 35 along the second axis X2, the cup 61 gradually gets far away from the stop plate 64, the positioning tenon 63 is separated from one of the positioning holes 24, and the pulley 3, the stop block 6 and the shift lever block 7 can slide relative to the upright 2 at this time, that is, the up-down position of the adjustable display 3000.

Further, as shown in fig. 6, when the lever block 72 is adjacent to the bottom end 3811 of the operation opening 381, one end of the second elastic body 73 is pressed by the wing 712, the second elastic force is gradually increased, and when the external force is removed, the second elastic body 73 tends to rebound (i.e. the second elastic force is gradually decreased) to reset the pivot seat 71, the stop block 714 pushes the dial 65 along the second axis X2, the cup 61 moves toward the stop plate 64 and simultaneously compresses the first elastic body 66 (i.e. the first elastic force is gradually increased), the lever module 7 returns to the pushing state, and the positioning tongue 63 is accommodated in one of the positioning holes 24, in other words, the pulley 3, the stop module 6 and the lever module 7 tend to be kept in the pushing state without applying the external force.

Additionally, in this embodiment, the pulling force of the elastic member 4 is slightly smaller than the total weight of the display 3000, the pulley 3, the shaft unit 5, the stop module 6, the lever module 7 and the cantilever module 2000, so that when the positioning tenons 63 are not aligned with one of the positioning holes 24 (between two positioning holes 24), the pulley 3 automatically moves downward (due to the total weight being slightly greater than the pulling force) slightly during the process of changing from the release state to the pushing state, so that the positioning tenons 63 are aligned with the positioning holes 24 nearest to and below, and then smoothly enter the pushing state; conversely, if the tension of the elastic member 4 is slightly greater than the total weight of the display 3000, the pulley 3, the shaft unit 5, the stop module 6, the lever module 7 and the cantilever module 2000, when the positioning tongue 63 is not aligned with one of the positioning holes 24, the pulley 3 automatically moves upwards (because the total weight is slightly less than the tension) slightly during the process of changing from the release state to the pushing state, so that the positioning tongue 63 is aligned with the positioning hole 24 nearest and above, and then can smoothly enter the pushing state.

In summary, by the design of the supporting device 1000 of the present utility model that the driving lever module 7 is kept in the pushing state, when the user removes the display 3000 from the supporting arm module 2000, the upward pulling force provided by the elastic member 4 is suddenly greater than the total weight of the pulley 3, the shaft unit 5, the stop module 6, the driving lever module 7 and the supporting arm module 2000, but the positioning tongue 63 is accommodated in the positioning hole 24, so that the pulley 3 is limited to move along the first axis X1, that is, the pulley 3 does not move relative to the upright post 2 and no backlash (upper punch) occurs, so that the risk of the user being impacted by the supporting arm module 2000 can be avoided, and when the user needs to lift the screen when the user moves the position of the pulley 3 or mounts the display 3000, the user can lift the display normally as soon as the positioning tongue 63 is separated from the positioning hole 24 by pressing the driving lever block 72, and the finger is automatically rebounded to the pushing state when the finger leaves the driving lever block 72. Even if the positioning tenons 63 are not aligned with the positioning holes 24 during the process of automatically rebounding to the ejection state (for example, the positioning tenons 63 are propped against any two of the positioning holes 24), the positioning tenons 63 can be automatically inserted into the positioning holes 24 in the next sequential position by the first elastic force of the first elastic body 66 and the first elastic force of the stop module 6, the shift lever module 7 and the bearing cantilever module 2000 through the pull-up force of the elastic member 4 or the total weight force of the display 3000, the pulley 3, the shaft unit 5, the stop module 6, the shift lever module 7 and the bearing cantilever module 2000. The supporting device 1000 is convenient to use, good in experience and high in safety.

Claims (10)

1. A support device, the support device comprising:

a riser, comprising:

a housing extending along a first axis;

a containing space surrounded and defined by the shell;

an opening formed on the housing along the first axis and communicating with the accommodating space; and

A plurality of positioning holes arranged along the first axis and formed on the inner side of the shell;

the pulley is arranged in the accommodating space, extends outwards from the opening partially, can slide back and forth along a gravity direction substantially, and comprises a limit groove extending along a second axis perpendicular to the first axis;

at least one elastic piece arranged in the accommodating space, two ends of which are respectively fixed on the shell and the pulley and constantly provide a pulling force opposite to the gravity direction for the pulley;

the shaft lever unit comprises a rod piece and is arranged on the pulley along a third axis perpendicular to the first axis and the second axis;

a stop module comprising a positioning tenon capable of reciprocating in the limit groove; and

the deflector rod module is at least partially arranged in the accommodating space and pivoted to the rod piece, and can be switched between an ejection state and a release state relative to the pulley;

when the deflector rod module is in the pushing state, the deflector rod module tends to enable the positioning tenons to be contained in one of the positioning holes, so that the pulley, the stop module and the deflector rod module are fixed relative to the upright post, and when the deflector rod module is in the releasing state, the deflector rod module tends to enable the positioning tenons to be separated from the positioning holes, so that the pulley, the stop module and the deflector rod module can slide relative to the upright post.

2. The support device of claim 1, wherein the stop module further comprises a first elastomer that constantly provides a first spring force tending to disengage the dowel from the dowel hole.

3. The support device of claim 2, wherein the retaining module further comprises a cup and a slot, the cup is received in the slot and surrounds the slot, the positioning tongue is received in the slot and fixedly coupled to the cup, and the first elastic body is sleeved on the positioning tongue.

4. The support device of claim 3, wherein the stop module further comprises a stop plate and a pulling block, the stop plate is fixedly connected to the pulley and has a through hole, the through hole is communicated with the limit groove and is used for the positioning tenon to pass through, and the pulling block extends outwards from the cup body.

5. The support device of claim 4, wherein the first elastic body is accommodated in the mortise and sleeved on the positioning tenon, two ends of the first elastic body respectively abut against the positioning tenon and the stop plate, when the deflector rod module is transformed from the release state to the ejection state, the deflector rod module pushes the deflector block along the second axis, thereby the cup body moves towards the stop plate and simultaneously compresses the first elastic body, the positioning tenon is accommodated in one of the positioning holes, and when the deflector rod module is transformed from the ejection state to the release state, the deflector rod module releases the deflector block, the first elastic body rebounds, thereby the cup body is far away from the stop plate and the positioning tenon is separated from the positioning hole.

6. The support device of claim 5, wherein the sled comprises a cart body and two foot plates, the foot plates extend outwards from the cart body along the first axis and are spaced apart from each other, the stop module is arranged on the cart body, the deflector rod module is arranged between the foot plates, the sled further comprises two through holes, a fixed block and a cover plate, each through hole is respectively formed on the foot plates along the third axis, the rod piece is arranged through the through hole, the fixed block is formed at the tail end of the foot plates, and the cover plate is fixedly connected to the fixed block and the cart body and is positioned on the front side of the shell, thereby covering the opening.

7. The support device of claim 6, wherein the cover plate has an operation opening extending along the first axis and communicating with the opening, the lever module extends partially outward from the operation opening, the lever module is adjacent to a bottom end of the operation opening when the lever module is in the released state, the lever module is away from the bottom end of the operation opening when the lever module is in the pushed state, the shaft unit further comprises two friction plates and two fasteners, the friction plates are sleeved on the rod and respectively located between each of the foot plates and the lever module, the friction plates generate friction when the stop module is switched between the pushed state and the released state, and the fasteners are respectively buckled at two ends of the rod and located at two opposite outer sides of the foot plates, thereby preventing the rod from being separated from the pulley.

8. The support device of any one of claims 4 to 7, wherein the lever module further comprises a second elastic body, which constantly provides a second elastic force, and the second elastic body is sleeved on the rod and tends to keep the lever module in the pushing state.

9. The support device of claim 8, wherein the lever module comprises a pivot base and a lever block, the pivot base has a seat plate, two wing plates, a top plate and a stop block, the wing plates are respectively formed by extending vertically from two opposite sides of the seat plate, the top plate is formed by extending vertically from the top side of the seat plate and is fixedly connected between the wing plates, the stop block is formed by extending outwards from the top plate and is correspondingly abutted against the lever block, the lever block is fixedly connected to the seat plate and is partially extended outwards from the opening, the pivot base further has two through holes, each through hole is respectively formed by penetrating through the wing plates along the third axis, and the rod is arranged through the through holes, thereby the pivot base can rotate relative to the pulley by taking the rod as an axis.

10. The support device of claim 9, wherein the first elastic body is a compression spring, the second elastic body is a torsion spring, the stop block limits the shift block when the shift lever module is in the pushing state, the stop block releases the shift block along the second axis when an external force is applied to the shift lever block to enable the pivot block to rotate relative to the pulley with the rod as an axis and enable the shift lever module to enter the releasing state, and the second elastic body resets the pivot block when the external force is removed, and the shift lever module returns to the pushing state.