CN203010136U - support frame - Google Patents

Abstract

A support frame for supporting a display comprises a pivot unit, a swing arm unit and a connecting unit, wherein the pivot unit comprises a pivot piece, it has a first pivot part and a second pivot part, the swing arm unit includes a first connecting rod, a linear moving member, a linkage block and an elastic member, the first connecting rod has a first end and a second end opposite to each other, the first end is pivoted with the second pivoting part, the first connecting rod is provided with a linear guide part which is arranged in a direction parallel to the first connecting rod and is close to the first end, the linear moving part can move linearly along the linear guide part, one end of the linkage block is pivoted with the first pivoting part, the other end of the elastic piece is pivoted with the linear moving piece, one end of the elastic piece is arranged at the second end of the first connecting rod, the other end of the connecting unit is connected with the linear moving part, and the connecting unit is used for fixing the display and is pivoted with the second end of the first connecting rod. The utility model discloses can save whole cost of manufacture.

Description

support frame

technical field

The utility model relates to a support frame, in particular to a support frame with a lifting device.

Background technique

With the progress of the times, general liquid crystal displays have become very common, but liquid crystal displays for office or display purposes have requirements different from general liquid crystal displays on the support frame, for example, the support frame needs to be able to swivel left and right and have a wide range Move left and right or up and down, etc.

Therefore, those skilled in the art have developed a support frame, as shown in FIG. 1A and FIG. The supporter 13 inside the swing arm 12 includes an outer sleeve 131, a linkage block 132 and a compression spring 133, and the bottom of the outer sleeve 131 is a bracket 121 that is pierced with a pivoting linkage block 132 and clamped to the swing arm 12. The rod 134 that slides in the slideway 1210 is held against the compression spring 133 on the stop ring 135 on the outer ring surface of the bottom of the outer casing 131, and the bottom of the linkage block 132 is provided with a shaft pivotally connected to one end of the cantilever 11 Rod 136, so that when the swing arm 12 swings downward or upward, the swing arm 12 will rotate around the bottom connecting shaft 122, and the rod 134 and the shaft rod 136 at the two ends of the linkage block 132 of the supporter 13 form a The interaction makes the rod 134 displace and slide in the slideway 1210 to form the expected position movement line, so that the compression spring 133 is pushed and compressed, and when different rotation angles are reached, it automatically adjusts the compensation torque, so that the entire swing arm 12 The force of the swing is consistent, so that the user can adjust the height of the screen up and down and achieve the effect of stopping at any height.

This case provides another design, so that when the user adjusts the height of the screen up and down, the torsion force can also be automatically adjusted and compensated.

Utility model content

In view of the lack of the above-mentioned prior art, the main purpose of the utility model is to provide a support frame, which can save the overall manufacturing cost.

The support frame of the present utility model is used to support a display, and the support frame includes: a pivot unit, which includes: a pivot member with a first pivot portion and a second pivot portion; a swing arm unit, which It includes: at least one first connecting rod, which has an opposite first end and a second end, the first end is pivotally connected to the second pivot joint, and the first connecting rod has a setting direction parallel to the first connecting rod adjacent to the first end. The linear guide part of the first connecting rod; a linear moving part, which can move linearly along the linear guide part; on the linear moving part; and at least one elastic part, one end of which is arranged near the second end of the first connecting rod, the other end of which is connected to the linear moving part; and a connecting unit, which is used for fixing the display and is pivoted at the second end of the first connecting rod.

Preferably, the linear guiding portion is a linear through hole, and the linear moving member has a convex portion passing through the linear through hole.

Preferably, the second pivotal portion is located below the first pivotal portion.

Preferably, the first link is switched between a horizontal state and a raised state, and when changing from the horizontal state to the raised state, the linkage block pivots and pushes against the linear moving member along the linear motion. The guiding part moves linearly and approaches the second end of the first connecting rod, thereby shortening the length of the elastic member.

Preferably, the swing arm unit further includes at least one second link located below the first link, one end of which is pivotally connected to the pivot member, and the other end of which is pivotally connected to the connecting unit.

Preferably, one end of the first link is pivotally connected to the second pivot portion around a first pivot, and the other end of the first link is pivotally connected to the connecting unit around a second pivot. connected; one end of the linkage block is pivotally connected to the first pivotal portion around a third pivot, and the other end of the linkage block is pivotally connected to the linear moving member around a fourth pivot; One end of the second link is pivotally connected to the pivot unit around a fifth pivot, and the other end of the second link is pivotally connected to the connecting unit around a sixth pivot; wherein, the The first pivot is located between the third pivot and the fifth pivot.

Preferably, the number of the first connecting rod and the second connecting rod is two respectively, and the first connecting rod and the second connecting rod jointly surround and define an accommodating space, and the linear moving member and the elastic The component is accommodated in the accommodating space.

Preferably, the elastic member is a tension spring.

Preferably, the swing arm unit further includes a resisting member, which is arranged on the linear moving member and selectively resists the first connecting rod.

Preferably, the swing arm unit further includes a baffle, an adjusting screw and a linear moving block, the baffle is arranged near the second end of the first connecting rod, the adjusting screw passes through the baffle, the adjusting screw The threaded end of the threaded end is connected with the linear moving block, and the adjusting screw is connected with the elastic member through the linear moving block, so as to adjust the initial length of the elastic member through the adjusting screw.

Preferably, the connecting unit further includes a connecting piece, a rotating piece and a tilting piece, the connecting unit is pivotally connected to the second end of the first link by the connecting piece, and the rotating piece is pivotally connected to the connecting piece and the tilting piece.

Preferably, the support frame further includes a cantilever unit and a fixed unit, two ends of the cantilever unit are respectively pivotally connected to the pivot unit and the fixed unit, and the fixed unit includes a fixed rod.

It can be seen from the above that the support frame of the present invention has the function of supporting a tablet computer, a liquid crystal screen or a smart mobile phone, and the swing arm unit of the support frame of the present invention cleverly uses linear moving parts and springs in a way different from the prior art Such components have the advantage that the lifting action can be easily operated by hand.

Description of drawings

Fig. 1A and Fig. 1B show the schematic diagram of the supporting frame of the existing Chinese Taiwan No. TWM368005 patent;

Fig. 2A to Fig. 2D show the schematic diagram of the raised state of the support frame of the present invention, wherein Fig. 2A is a side view, and Fig. 2B to Fig. 2D are partially enlarged perspective views of Fig. 2A;

Fig. 3 has shown the schematic diagram of the flat state of support frame of the present utility model; And

FIG. 4A and FIG. 4B respectively show a simple schematic view of the operating state of the first connecting rod, the second connecting rod and the linkage member in FIG. 2A and FIG. 3 of the present invention.

Explanation of main component symbols

10 Fixed seat

11 Cantilever

12 swing arm

121 bracket

1210 slideway

122 connecting shaft

13 Supporter

131 Outer casing

132 Linkage block

133 Compression spring

134 Rod

135 retaining ring

136 shaft

14 Connection seat

2 pivot unit

21 Pivot piece

211 The first pivot joint

212 Second pivot joint

3 Swing arm unit

31 The first connecting rod

310a, 310b Straight through hole

311 first end

312 second end

313 Plate

32 Linear moving parts

321 convex part

33 Linkage block

34 Elastic parts

35 Second connecting rod

36 Jacking piece

37 Torque adjustment parts

371 Bezel

372 Adjusting screw

373 Linear moving block

4 Link unit

41 Connectors

42 Rotating parts

43 Tilting piece

44 Display connection board

5 Cantilever unit

51 Cantilever

6 Fixed unit

61 Fixed rod

L1 First Pivot

L2 Second Pivot

L3 Third Pivot

L4 Fourth Pivot

L5 Fifth Pivot

L6 Sixth pivot.

Detailed ways

The implementation of the present utility model is described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to match the content disclosed in the specification for the understanding and reading of those skilled in the art, and are not used to limit the scope of the utility model. Therefore, it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size should still fall into place without affecting the effect and the purpose that the utility model can produce and achieve. within the scope covered by the technical content disclosed in the utility model. At the same time, terms such as "upper", "lower", "end", "adjacent", "top", "initial", "pitch", "left and right" and "one" quoted in this specification are only For the sake of clarity of description, rather than to limit the applicable scope of the present utility model, the change or adjustment of the relative relationship shall also be regarded as the applicable scope of the present utility model without substantive changes in the technical content.

Fig. 2A to Fig. 2D show schematic views of the raised state of the support frame of the present invention, wherein Fig. 2A is a side view, and Fig. 2B to Fig. 2D are partially enlarged perspective views of Fig. 2A.

As shown in the figure, the support frame of the present invention includes: a pivot unit 2 , a swing arm unit 3 , a connecting unit 4 , a cantilever unit 5 and a fixing unit 6 .

The pivot unit 2 includes: a pivot member 21 having a first pivot portion 211 and a second pivot portion 212 , and the second pivot portion 212 is located below the first pivot portion 211 .

The swing arm unit 3 includes: two first connecting rods 31, a linear moving part 32, a linking block 33, four elastic parts 34, two second connecting rods 35 (one for left and right symmetry), one abutment The member 36 and a torque adjusting member 37 , the torque adjusting member 37 includes a baffle plate 371 , an adjusting screw 372 and a linear moving block 373 .

Each first connecting rod 31 has a first end 311 and a second end 312 opposite to each other. The first end 311 is pivotally connected to the second pivot portion 212 and can pivot around a first pivot axis L1. The two ends 312 are pivotally connected to the connecting unit 4 and can pivot around a second pivot L2. Through hole 310a, the first connecting rod 31 has a linear through hole 310b extending along the long axis direction of the first connecting rod 31 adjacent to the second end 312; the linear moving member 32 has a linear through hole 310a passing through protruding portion 321 (such as a screw head), so that the linear moving member 32 can move linearly along the linear through hole 310a, and both sides have the protruding portion 321, but it is not limited thereto, for example, there may be only There is the convex portion 321 on one side; one end of the linkage block 33 is pivotally connected to the first pivotal portion 211, and can pivot around a third pivot L3, and the other end is pivotally connected to the linear moving member 32, And can pivot around a fourth pivot L4; one end of the elastic member 34 is connected to the linear moving block 373 of the torsion adjustment member 37, and the other end is connected to the linear moving member 32, and the elastic members 34 in this embodiment The middle is a tension spring, but it is not limited thereto; the second link 35 is located below the first link 31, one end of which is pivotally connected to the pivot member 21, and can pivot around a fifth pivot L5 Rotate, the other end is pivotally connected to the connecting unit 4, and can pivot around a sixth pivot L6; the resisting member 36 is locked to the side of the linear moving member 32, and selectively resists the plate 313, the plate 313 is fixed on the first connecting rod 31, by pressing the abutting member 36 against the plate 313, the abutting member 36 and the plate 313 are pressed against each other, and the pivoting of the The first connecting rod 31. Specifically, the number of the first connecting rods 31 and the second connecting rods 35 are two respectively, and the first connecting rods 31 and the second connecting rods 35 jointly surround and define an accommodating space, and the linear movement The element 32 and the elastic element 34 are accommodated in the accommodating space.

The connecting unit 4 includes: a connecting piece 41, a rotating piece 42, a tilting piece 43 and a display connecting plate 44. Rod 35, the rotating part 42 is pivotally connected to the connecting part 41 and the tilting part 43, and the display connection plate 44 is arranged on the tilting part 43, and is used to connect a display such as a tablet computer, a liquid crystal screen or a smart phone ( not shown).

The cantilever unit 5 includes a cantilever member 51, one end of which is pivotally connected to the pivotal member 21 of the pivotal unit 2. In this embodiment, the pivotal member 21 can rotate horizontally relative to the cantilever member 51, but this does not mean that limit.

The fixed unit 6 includes a fixed rod 61, which is pivotally connected to the other end of the cantilever member 51 of the cantilever unit 5, and the fixed rod 61 can be screwed to the desktop or wall, or clamped to the table. to fix on the desktop. Likewise, in this embodiment, the cantilever member 51 can rotate horizontally relative to the fixed rod 61 to increase the convenience of adjustment.

It should be noted here that FIG. 2B does not show the resisting member 36 and the plate 313 for convenience of observation, and FIG. 2C does not show the first connecting rod 31 for convenience of observation.

Fig. 3 shows a schematic diagram of the first connecting rod 31 of the swing arm unit 3 of the present invention in a horizontal state, wherein, compared with the raised state, the linear moving member 32 is used to pull the elastic member 34 longer.

FIG. 4A and FIG. 4B respectively show a simple schematic diagram of the operating state of the first connecting rod 31 , the second connecting rod 35 and the linkage block 33 in FIG. 2A and FIG. 3 of the present invention. For convenience of description, the second link 35 is temporarily ignored, and only the movement changes of the first link 31 and the linkage block 33 are described. Among them, the distance between L1 and L2 (approximately the length of the first connecting rod 31) and the distance between L3 and L4 (approximately the length of the linkage block 33) are fixed values, and because the first linkage 31 and the linkage block 33 They are all pivotally arranged on the pivoting member 21, so the distance between L1 and L3 is a fixed value, but since the other end of the linkage block 33 is pivotally connected to the linear moving member 32, it can be moved relative to the first connecting rod 31. Linear sliding, so the distance between L1 and L4 will change with the angle of raising the first connecting rod 31, in this embodiment, the greater the angle of raising the first connecting rod 31, the distance between L1 and L4 In other words, the distance between L4 and L2 is smaller, and at the same time, the elastic member 34 (extension spring) is stretched smaller, that is, the elastic force of the elastic member 34 is smaller. Further taking the elevated state of FIG. 4A as an example, when operating the support frame of the present invention, the sum of the weight F1 of the swing arm unit 3 , the link unit 4 and the display (force directly downward) will be relative to the first A clockwise moment τ1 is generated by the pivot L1; and the elastic force F2 of the elastic member 34 in the raised state generates a counterclockwise moment τ2 relative to the third pivot L3. Since the moment is equal to the force multiplied by the effective moment arm, τ1=F1×D1, where D1 is the vertical distance from the first pivot L1 to the line of action of F1, which is the effective moment arm of F1 in the raised state (that is, L1 and The projected length of the L2 line in the horizontal direction); and τ2=F2×D2, where D2 is the vertical distance from the line of action of the third pivot L3 to F2 (that is, the shortest distance from L3 to L1 and the line of L4).

In addition, taking the horizontal state of Figure 4B further, τ1'=F1'×D1', where F1'=F1 (the sum of the weights will not change), and D1' is the vertical of the line of action from the first pivot L1 to F1' The distance is the effective force arm of F1' in the horizontal state (that is, the length of the connection between L1 and L2 in the figure), and D1'>D1; and τ2'=F2'×D2', where F2'>F2 (because The tension spring is stretched to a greater extent), D2' is the vertical distance from the line of action from L3 to F2' (that is, the shortest distance from L3 to L1 and L4), which is approximately equal to the distance between L3 and L1 in the figure. That is, D2'>D2.

Furthermore, in the raised state of FIG. 4A , by adjusting the torque adjustment member 37 (details will be described later), the above-mentioned clockwise torque τ1 and counterclockwise torque τ2 are substantially equal, so that the first connecting rod 31 remains elevated; and when the swing arm unit 3 is pivoted downward to be in a horizontal state as shown in Figure 4B, since F1'=F1, and D1'>D1, τ1'>τ1, so if the swing The arm unit 3 can stop at any angle during the downward pivoting process, and τ2' should also increase correspondingly to τ1', that is, τ2'>τ2, and it is known that F2' is greater than F2, and D2' is greater than D2, so τ2' and τ1 'While increasing and substantially maintaining balance.

In addition, the above torque calculation is biased towards the ideal state, and in fact there is also the influence of friction, which can be understood by those skilled in the art, and will not be repeated here.

In addition, as can be seen from FIG. 4A and FIG. 4B, since the second link 35 is located below the first link 31, no matter how the swing arm unit 3 of the present invention swings up and down, the pitch angle of the display will not change. And it is beneficial for the user to operate the display.

In addition, in order to ensure that the lifting angle of the swing arm unit 3 of the present invention will not be affected by external force and improperly changed after the adjustment is completed, the swing arm 36 and the plate 313 can be pressed against each other to make the swing arm Unit 3 is locked at a specific angle.

Next, the adjustment method of the pre-torque will be supplemented. The baffle 371 of the torque adjusting member 37 is disposed on the first connecting rod 31 adjacent to the second end 312, the adjusting screw 372 passes through the baffle 371, and the threaded end of the adjusting screw 372 is connected to the linear moving block 373, The linear moving block 373 has a protrusion passing through the linear through hole 310b, so that the linear moving block 373 can move linearly along the linear through hole 310b, and the adjusting screw 372 is connected to the elastic member through the linear moving block 373 34, so as to adjust the initial length and initial elastic force of the elastic member 34 through the adjusting screw 372. In other words, the initial pre-torque force can be adjusted corresponding to different screen weights, but preferably, the connecting unit 4 must be raised to the highest position during adjustment, so that the end of the adjustment screw 372 will be exposed, so as to facilitate the adjustment. Adjustment.

It should be noted that the above-mentioned two linear through holes 310a, 310b can be provided with the track on the inner surface of the first connecting rod 31 to replace the linear guide part, or the first connecting rod 31 and the second connecting rod 31 can be used to replace the linear guide. The inner space of the connecting rod 35 restricts the linear movement of the linear moving member 32 and the linear moving block 373 .

In summary, the support frame of the present invention has the function of supporting a tablet computer, a liquid crystal screen or a smart mobile phone, and the swing arm unit of the support frame of the present invention cleverly uses a linear moving part and a Components such as springs have the advantage of being able to easily operate the lifting action by hand.

The above-mentioned embodiments are only used to illustrate the principles and effects of the present utility model, but not to limit the present utility model. Any person skilled in the art can modify the above-mentioned embodiments without departing from the spirit and scope of the present utility model. Therefore, the scope of protection of the rights of the utility model should be as listed in the claims.

Claims (12)

1. A support frame, in order to support a display, is characterized in that, this support frame comprises: A pivot unit, comprising: A pivot member, having a first pivot portion and a second pivot portion; a swing arm unit, comprising: at least one first connecting rod, which has opposite first end and second end, the first end is pivotally connected to the second pivot joint, and the first connecting rod has an arrangement direction parallel to the first connecting rod adjacent to the first end. The linear guide of the connecting rod; a linear moving member capable of linearly moving along the linear guide; a linkage block, one end of which is pivotally connected to the first pivotal portion, and the other end of which is pivotally connected to the linear moving member; and at least one elastic member, one end of which is disposed adjacent to the second end of the first connecting rod, and the other end of which is connected to the linear moving member; and A connecting unit is used for fixing the display and is pivotally connected to the second end of the first connecting rod. 2 . The support frame according to claim 1 , wherein the linear guiding portion is a linear through hole, and the linear moving member has a convex portion passing through the linear through hole. 3 . 3. The supporting frame according to claim 2, wherein the second pivotal portion is located below the first pivotal portion. 4. The support frame according to claim 3, wherein the first link is switched between a horizontal state and an elevated state, and when the horizontal state is transformed into the elevated state, the linkage block The pivoting and pushing against the linear moving part produces linear movement along the linear guide part, and approaches the second end of the first connecting rod, thereby shortening the length of the elastic part. 5. The support frame according to claim 4, wherein the swing arm unit further comprises at least one second link located below the first link, one end of which is pivotally connected to the pivot member, and the other end of which is pivotally connected to the connecting unit. 6. The support frame according to claim 5, wherein one end of the first connecting rod is pivotally connected to the second pivot joint around a first pivot, and the other end of the first connecting rod It is pivotally connected with the connecting unit around a second pivot; one end of the link block is pivotally connected with the first pivot part around a third pivot, and the other end of the link block is around a The fourth pivot is pivoted with the linear moving member; one end of the second link is pivoted with the pivot unit around a fifth pivot, and the other end of the second link is pivoted around a sixth The pivot is pivotally connected with the connecting unit; wherein, the first pivot is located between the third pivot and the fifth pivot. 7. The support frame according to claim 6, wherein the number of the first connecting rods and the second connecting rods are respectively two, and the first connecting rods and the second connecting rods jointly cooperate to define a The accommodating space, the linear moving element and the elastic element are accommodated in the accommodating space. 8. The supporting frame according to claim 4, wherein the elastic member is a tension spring. 9 . The support frame according to claim 4 , wherein the swing arm unit further comprises a resisting member disposed on the linear moving member and selectively resisting the first connecting rod. 10. The support frame according to any one of claims 1 to 9, wherein the swing arm unit further comprises a baffle, an adjusting screw and a linear moving block, the baffle is arranged on the first connecting rod Adjacent to the second end, the adjusting screw passes through the baffle, the threaded end of the adjusting screw is connected to the linear moving block, and the adjusting screw is connected to the elastic member through the linear moving block, so as to adjust the elastic member through the adjusting screw. initial length. 11. The support frame according to any one of claims 1 to 9, wherein the connecting unit further comprises a connecting piece, a rotating piece and a tilting piece, and the connecting unit is pivotally connected to the first connecting rod through the connecting piece At the second end, the rotating component is pivotally connected to the connecting component and the tilting component. 12. The support frame according to any one of claims 1 to 9, wherein the support frame further comprises a cantilever unit and a fixed unit, and the two ends of the cantilever unit are pivotally connected to the pivot unit and the fixed unit respectively , the fixing unit includes a fixing rod.

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