TWI751713B - Height adjustment device and print platform using same - Google Patents

Abstract

The present application relates to a height adjustment device comprising a fixed assembly, a supporting assembly, a shaft, an elastic element, and a fastening element. The fixed assembly includes a first body, a first fastening platform, and a first position-limiting portion. The supporting assembly includes a second body, a second fastening platform, a second position-limiting portion, and a supporting element. The supporting element is penetrated through the second body and supporting a transmission shaft of a print platform. The shaft is penetrated through the first body and the second body. A first portion of the elastic element is limited by the first position-limiting portion, and a second portion of the elastic element is limited by the second position-limiting portion. The fastening element is penetrated through the first fastening platform and the second fastening platform and fastened with a fastening portion. When the fastening element is locked relative to the fastening portion, the transmission shaft is driven by the second body to move along a first direction. When the fastening element is released relative to the fastening portion, the transmission shaft is driven by the second body to move along a second direction.

Description

Height adjustment device and its applicable printing platform

This case is about an adjustment device, especially a height adjustment device and a printing platform to which it is applied.

Printing equipment can output digital files to print media such as paper and photos, so it is widely used in domestic and commercial fields.

Calibration of printing equipment, such as height adjustment, has a direct impact on printing accuracy. The printing platform of the traditional printing equipment is mainly of fixed height, and the relative distance between the print head and the printing platform has been fixed before the printing equipment leaves the factory. In advanced models, the height of the print head can be adjusted to control the gap between the print head and the printing platform.

However, both the fixed-height printing equipment and the printing equipment equipped with adjustable-height printheads have many disadvantages. In the fixed structure, when the media is deformed, it is impossible to fine-tune the distance between the print head and the printing platform according to the deformation of the media. In the advanced structure, the mechanism for adjusting the height of the print head is more complicated, and it belongs to the professional adjustment. In addition, traditional printing equipment, It is difficult to rule out the tolerance problem from the accumulation of parts. In addition to poor accuracy during the printing process, there may even be a collision between the print head and the printing platform.

Therefore, how to develop a height adjustment device that can effectively solve the problems and disadvantages of the prior art and a printing platform suitable for it is a problem to be solved at present.

The main purpose of this case is to provide a height adjustment device and a printing platform suitable for it, so as to solve and improve the problems and shortcomings of the aforementioned prior art.

Another object of the present application is to provide a height adjustment device and a suitable printing platform. By adjusting the tightness of the locking element relative to the locking portion and using the elastic element to limit the degree of freedom of the supporting element, the supporting element can be relatively fixed to the element Rotate to drive the transmission shaft to move along the first direction or the second direction, so as to achieve the effect of simple height adjustment.

Another object of this application is to provide a height adjustment device and a printing platform suitable for it, through the engagement between the toothed area of the supporting element and the positioning tip of the second body, and each tooth is formed to the axis of the transmission shaft. The lengths of the radii are different from each other, it is easy to set the height displacement of each tooth, and the height can be easily fine-tuned by rotating the support element.

Another object of the present application is to provide a height adjustment device and a printing platform suitable for it. Using the weight of the printing platform itself and the pressing force provided by the pressing element, the teeth of the supporting element can be positively engaged with the positioning tip. In addition, through the first locating screw, the second locating screw and the third locating screw of the supporting component, the supporting component and the fixing component can be stably fixed after adjustment and fine adjustment, so that the adjusted height is stable.

In order to achieve the above-mentioned purpose, a preferred embodiment of the present application is to provide a height adjustment device suitable for a printing platform of a printing device, the height adjustment device comprising: a fixing component, including It includes a first body, a first locking platform and a first limiting portion, wherein the first locking platform and the first limiting portion are arranged on the first body; a supporting component includes a second body , a second locking platform, a second limiting portion and a supporting element, wherein the second locking platform and the second limiting portion are arranged on the second body, and the second locking platform is arranged on the first Between a locking platform and the second limiting portion, the second locking platform includes a locking portion, and the supporting element passes through the second body and supports a transmission shaft of the printing platform; a rotating shaft , passing through the first body and the second body; an elastic element having an elastic part, a first end and a second end, wherein the elastic part is connected with the first end and the second end The first end is connected with the first limiting portion and is limited by the first limiting portion, and the second end is connected with the second limiting portion and is limited by the second limiting portion. a position limit, so that the elastic part is stretched by the pulling force of the first end and the second end; and a locking element is inserted through the first locking platform and the second locking platform and is locked with the locking portion, wherein the locking element has a first length between the first locking platform and the second locking platform, and the locking element protrudes from the second locking platform a second Length; wherein, when the locking element is locked relative to the locking portion, the first length decreases and the second length increases, the second body is driven by the second locking platform to rotate along the shaft, and the supporting element Driven by the second body to drive the transmission shaft to move in a first direction; wherein, when the locking element is released relative to the locking portion, the first length increases and the second length decreases, and the second limiting portion The second body is driven to rotate along the rotating shaft by the restoring force of the elastic portion, and the supporting element is driven by the second body to drive the transmission shaft to move in a second direction.

In order to achieve the above purpose, a preferred embodiment of the present application is to provide a printing platform, including: a first transmission shaft; a second transmission shaft; a platform body, one end of the platform body is sleeved on the first transmission a shaft, and the other end of the platform body is supported on the second transmission shaft; two first height adjusting devices respectively carry the first transmission shaft on a first side of the platform body and a second drive shaft on a first side of the platform body The side supports the second transmission shaft, wherein each of the first height adjustment devices is the height adjustment device described in the previous paragraph. When the locking element is locked relative to the locking portion, the second body is subject to the second locking platform It is driven to rotate counterclockwise along the rotating shaft to increase the height of the platform body, and when the locking element is released relative to the locking portion, the second limiting portion is driven by the restoring force of the elastic portion to drive the second body along the height of the platform body. The rotating shaft rotates clockwise to reduce the height of the platform body; and two second height adjusting devices respectively carry the second transmission shaft on the first side of the platform body and on the second side of the platform body Bearing the first transmission shaft, each of the second height adjusting devices is the height adjusting device described in the previous paragraph, and when the locking element is locked relative to the locking portion, the second body is subject to the second locking The platform is driven to rotate clockwise along the rotating shaft to raise the height of the platform body, and when the locking element is released relative to the locking portion, the second limiting portion is driven by the restoring force of the elastic portion to drive the second body Rotate counterclockwise along the rotating shaft to reduce the height of the platform body.

1: Height adjustment device

11: Fixed components

111: The first body

112: The first lock payment platform

113: The first limit part

12: Support components

121: The second body

1211: Through slot

1212: Positioning tip

1213: Arc Opening

1214: Convex shaft

1215: hook part

122: Second lock payment platform

1221: Lock Payment Department

123: The second limit part

124: Support element

1240: Round Flakes

1241: Tooth area

12411: Teeth

1242: Limit handle

12421: Limit surface

12422: Pull handle

1243: Rotary handle

12430: Lock hole

125: The first positioning screw

126: Second positioning screw

127: The third set screw

128: Press components

13: Spindle

14: Elastic element

141: First End

142: Second end

143: Elastic part

15: Locking components

2: Height adjustment device

21: Fixed components

211: The first body

212: The first lock payment platform

213: The first limit part

22: Support components

221: Second Body

2211: Through slot

2212: Positioning tip

2213: Arc Opening

2214: Convex

2215: hook part

222: Second lock payment platform

2221: Lock Payment Department

223: The second limit part

224: Support element

2240: Round Flakes

2241: Tooth area

22411: Teeth

2242: Limit handle

22421: Limit surface

22422: Pull handle

2243: Rotary handle

22430: Lock hole

225: The first positioning screw

226: Second positioning screw

227: The third set screw

228: Press components

23: Spindle

24: Elastic element

241: First End

242: Second End

243: Elastic part

25: Locking components

3: Printing Platform

31: The first drive shaft

32: Second drive shaft

33: Platform ontology

4: Printing equipment

41: Bracket

A: Transmission shaft

C: axis

d1: first direction

d2: the second direction

G: Gap

h1: screw hole

h2: screw hole

L1: first length

L2: second length

L3: first length

L4: Second length

Z: area

FIG. 1 is a front view showing the structure of a height adjusting device according to an embodiment of the present application.

FIG. 2 is a rear view showing the structure of the height adjusting device shown in FIG. 1 .

FIG. 3 is a schematic diagram showing the structure of the support element shown in FIG. 1 .

FIG. 4 is a front view showing the structure of the height adjusting device shown in FIG. 1 with the support elements removed.

FIG. 5 is a front view showing the structure of the height adjusting device according to an embodiment of the present application.

FIG. 6 is a rear view showing the structure of the height adjusting device shown in FIG. 5 .

FIG. 7 is a schematic diagram showing the structure of the support element shown in FIG. 5 .

FIG. 8 is a front view showing the structure of the height adjusting device shown in FIG. 5 with the support elements removed.

FIG. 9 is a schematic diagram showing the relationship between the drive shaft of the printing platform, the supporting element and the third positioning screw shown in FIGS. 1 and 5 .

FIG. 10 is a schematic diagram showing the structure of the printing platform and the applicable printing equipment according to an embodiment of the present application.

FIG. 11 is a front view showing the structure of the printing platform shown in FIG. 10 and its applicable printing equipment.

FIG. 12 is a schematic diagram showing the detailed structure of the area Z shown in FIG. 11 .

Some typical embodiments embodying the features and advantages of the present case will be described in detail in the description of the latter paragraph. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and the descriptions and diagrams therein are essentially for illustrative purposes rather than limiting the present case.

Please refer to Figure 1, Figure 2, Figure 3 and Figure 4, wherein Figure 1 is a front view of the structure of the height adjustment device according to an embodiment of the present application, and Figure 2 is the height adjustment shown in Figure 1 The rear view of the structure of the device, Figure 3 is a schematic view of the structure of the support element shown in Figure 1, and Figure 4 is a front view of the structure of the height adjustment device shown in Figure 1 without the support element. As shown in FIGS. 1 to 4, according to an embodiment of the present case, the height adjustment device 1 is suitable for a printing platform of a printing device, and the height adjustment device 1 includes a fixing component 11, a supporting component 12, a rotating shaft 13, Elastic element 14 and locking element 15 . The fixing assembly 11 includes a first body 111 , a first locking platform 112 and a first limiting portion 113 . The first locking platform 112 and the first limiting portion 113 are disposed on the first body 111 . The supporting assembly 12 includes a second body 121 , a second locking platform 122 , a second limiting portion 123 and a supporting element 124 . The second locking platform 122 and the second limiting portion 123 are disposed on the second body 121 . The second locking platform 122 is disposed between the first locking platform 112 and the second limiting portion 123 , and the second locking platform 122 includes a locking portion 1221 . The support element 124 passes through the second body 121 and supports the transmission shaft A of the printing platform. The rotating shaft 13 passes through the first body 111 and the second body 121 . The elastic element 14 has a first end portion 141 , a second end portion 142 and an elastic portion 143 . The elastic portion 143 is connected with the first end portion 141 and the second end portion 142 . The first end portion 141 is connected to the first limiting portion 113 and is limited by the first The positioning portion 113 is limited, and the second end portion 142 is connected to the second limiting portion 123 and is limited by the second limiting portion 123 , so that the elastic portion 143 is limited by the first end portion 141 and the second end portion 142 . Pull stretch. The locking element 15 passes through the first locking platform 112 and the second locking platform 122 and is locked with the locking portion 1221 . The locking element 15 has a first length L1 between the first locking platform 112 and the second locking platform 122 , and the locking element 15 protrudes from the second locking platform 122 by a second length L2 . When the locking element 15 is locked relative to the locking portion 1221, the first length L1 decreases and the second length L2 increases, the second body 121 is driven by the second locking platform 122 to rotate along the rotating shaft 13, and the supporting element 124 is supported by the second body 121 is driven to drive the transmission shaft A to move along the first direction d1; when the locking element 15 is released relative to the locking portion 1221, the first length L1 increases and the second length L2 decreases, and the second limiting portion 123 is restored by the elastic portion 143 The force drives the second body 121 to rotate along the rotating shaft 13 , and the supporting element 124 is driven by the second body 121 to drive the transmission shaft A to move along the second direction d2 . Specifically, the first direction d1 is preferably vertically upward, and the second direction d2 is preferably vertically downward, but both are not limited thereto. In short, the height adjustment device 1 of the present application adjusts the tightness of the locking element 15 relative to the locking portion 1221 and uses the elastic element 14 to limit the degree of freedom of the supporting element 12, and the supporting element 12 can rotate relative to the fixing element 11, In order to drive the transmission shaft A to move up or down, the effect of simple height adjustment can be achieved.

In some embodiments, the first locking platform 112 and the first limiting portion 113 are perpendicular to the first body 111 , and the second locking platform 122 and the second limiting portion 123 are perpendicular to the second body 121 , but not This is limited. In addition, there is a gap G between the first body 111 of the fixing component 11 of the height adjusting device 1 and the second body 121 of the supporting component 12 , and the gap G provides a space for the second body 121 to rotate relative to the first body 111 . In addition, the second body 121 has a through slot 1211 , and the support assembly 12 further includes a first positioning screw 125 , and the first positioning screw 125 penetrates through the through slot 1211 and the first body 111 to limit the support element 124 to drive the transmission shaft A along the first positioning screw 125 . The movement range of the movement in one direction d1 and the second direction d2. In other words, the first positioning screw 125 can lock the through groove 1211 and the first body 111. When the user wants to adjust the height of the transmission shaft A by adjusting the locking element 15, the first positioning screw 125 needs to be loosened first. And adjust the tightness of the locking element 15 relative to the locking portion 1221, so as to make the second body 121 rotate relative to the first body 111 along the rotating shaft 13; After completion, the first positioning screw 125 is locked to fix the adjusted height. In some embodiments, the rotating shaft 13 can be a screw, but not limited thereto. In addition, the locking element 15 and the locking portion 1221 may be a combination of screws and nuts, but not limited thereto.

Please refer to Figure 3 and Figure 4 again. In some embodiments, the height adjusting device of the present application further provides a mechanism for fine-tuning the height. Specifically, the supporting element 124 of the supporting element 12 of the height adjusting device 1 of the present application is a circular sheet-like body 1240 and has a tooth-shaped area 1241 . The toothed region 1241 has a plurality of toothed portions 12411 , the second body 121 has a positioning tip 1212 , and the positioning tip 1212 is engaged with one of the plurality of toothed portions 12411 of the toothed region 1241 . The toothed area 1241 is preferably formed along an involute, but not limited thereto, and the lengths of the radius formed by each tooth 12411 of the plurality of tooth parts 12411 to the axis C of the transmission shaft A are the same as each other. different. That is to say, when the supporting element 124 is rotated, so that the positioning tip 1212 is engaged with different tooth portions 12411, the distance between the positioning tip 1212 and the axis C of the transmission shaft A will be changed, so that the fine adjustment of the height can be achieved. Features. Therefore, in the application of the height adjusting device 1 of the present application, it is easy to set the height displacement of each tooth portion, and the height can be easily fine-tuned by rotating the support element 124 .

Further, the support element 124 includes a limiting handle 1242 and a rotating handle 1243 . The limiting handle 1242 and the rotating handle 1243 are disposed on opposite sides of the circular sheet body 1240 . The limiting handle 1242 has a limiting surface 12421 and a handle portion 12422, and the limiting surface 12421 is in direct contact with the second body 121 (as shown in FIG. 12). The handle portion 12422 has a screw hole h1, the second body 121 has an arc-shaped opening 1213, and the support assembly 12 further includes a second positioning screw 126, and the second positioning screw 126 passes through the arc-shaped opening 1213 and the screw hole h1 and is connected with the screw. The hole h1 is screwed together to limit the rotation range of the handle portion 12422 , the limiting handle 1242 and the circular sheet body 1240 . In other words, the second positioning screw 126 can lock the arc-shaped opening 1213 and the handle portion 12422 of the limiting handle 1242 . When the user wants to fine-tune the height, he needs to loosen the second positioning screw 126 and rotate the handle 1243 to change the distance between the positioning tip 1212 and the axis C of the transmission shaft A; By locking the positioning screw 126, the adjusted height can be fixed.

Please refer to Figure 1 and Figure 3 again. In some embodiments, the handle 1243 has a locking hole 12430 , and the support assembly 12 further includes a third positioning screw 127 . The third positioning screw 127 passes through the locking hole 12430 and is screwed with the locking hole 12430 , and the third positioning screw 127 and the rotary handle 1243 jointly clamp the transmission shaft A to limit the rotation of the transmission shaft A. In some embodiments, the support element 12 of the height adjustment device 1 of the present application further includes a pressing element 128 . The pressing member 128 is connected to the supporting member 124 and provides a pressing force in the second direction d2 to press the supporting member 124 . In other words, the support element 124 of the height adjustment device 1 of the present application is supported by the positioning tip 1212 of the second body 121 in the manner of gear meshing, and the support element 124 can be pressed down by the gravity of the printing platform itself. The toothed portion 12411 of the toothed region 1241 of the support element 124 is surely engaged with the positioning tip 1212 . Of course, the supporting element 124 can also be pressed down by using the pressing element 128 to provide a downward pressing force, so that the tooth portion 12411 of the toothed region 1241 of the supporting element 124 is indeed engaged with the positioning tip 1212 . At the same time, in order to ensure the stability of the fine adjustment of the height, the height of the transmission shaft A can be fixed by locking the third positioning screw 127 after the adjustment is completed.

In some embodiments, the pressing element 128 is a torsion spring, and the second body 121 has a protruding shaft 1214 and a hook portion 1215 . The center of the torsion spring is sleeved on the protruding shaft 1214 , one end of the torsion spring is hooked on the hook portion 1215 , and the other end of the torsion spring presses the supporting element 124 .

Please refer to Figure 5, Figure 6, Figure 7 and Figure 8. Fig. 5 is a front view showing the structure of a height adjusting device according to an embodiment of the present application, Fig. 6 is a rear view showing the structure of the height adjusting device shown in Fig. 5, and Fig. 7 is a supporting element shown in Fig. 5 Fig. 8 is a schematic view of the structure, and Fig. 8 is a front view showing the structure of the height adjustment device shown in Fig. 5 with the support element removed. As shown in FIG. 5 to FIG. 8, according to an embodiment of the present case, the height adjustment device 2 is suitable for a printing platform of a printing device, and the height adjustment device 2 includes a fixing component 21, a supporting component 22, a rotating shaft 23, Elastic element 24 and locking element 25 . The fixing assembly 21 includes a first body 211 , a first locking platform 212 and a first limiting portion 213 . The first locking platform 212 and the first limiting portion 213 are disposed on the first body 211 . The supporting assembly 22 includes a second body 221 , a second locking platform 222 , a second limiting portion 223 and a supporting element 224 . The second lock and payment platform 222 includes a lock and payment part 2221. The elastic element 24 has a first end portion 241 , a second end portion 242 and an elastic portion 243 . The locking element 25 has a first length L3 between the first locking platform 212 and the second locking platform 222 , and the locking element 25 protrudes from the second locking platform 222 by a second length L4 . Since the fixing component 21, the supporting component 22, the rotating shaft 23, the elastic element 24, the locking element 25, the first body 211, the first locking platform 212, the first limiting portion 213, the second body 221, and the second locking platform 222, the second limiting portion 223, the supporting element 224, the locking portion 2221, the first end portion 241, the second end portion 242, the elastic portion 243, the first length L3 and the second length L4 are all similar to the previous embodiment, Therefore, it is not repeated here.

In addition, there is a gap G between the first body 211 of the fixing component 21 of the height adjusting device 2 and the second body 221 of the supporting component 22 in this embodiment, and the gap G provides a space for the second body 221 to rotate relative to the first body 211 . In addition, the second body 221 has a through slot 2211 , and the support assembly 22 further includes a first positioning screw 225 , the first positioning screw 225 penetrates through the through slot 2211 and the first body 211 to restrict the support element 124 from driving the transmission shaft A along the first The movement range of the movement in one direction d1 and the second direction d2.

In some embodiments, the supporting element 224 of the supporting element 22 of the height adjusting device 2 of the present application is a circular sheet-shaped body 2240 and has a tooth-shaped area 2241 . The toothed region 2241 has a plurality of toothed portions 22411 , the second body 221 has a positioning tip 2212 , and the positioning tip 2212 is engaged with one of the plurality of toothed portions 22411 of the toothed region 2241 . The toothed region 2241 is preferably formed along an involute, but not limited thereto, and the lengths of the radius formed by each tooth 22411 of the plurality of tooth portions 22411 to the axis C of the transmission shaft A are the same as each other. different.

Further, the support element 224 includes a limiting handle 2242 and a rotating handle 2243 . The limiting handle 2242 and the rotating handle 2243 are disposed on opposite sides of the circular sheet body 2240 . The limiting handle 2242 has a limiting surface 22421 and a handle portion 22422 , and the limiting surface 22421 is in direct contact with the second body 221 . The handle portion 22422 has a screw hole h2, the second body 221 has an arc-shaped opening 2213, and the support assembly 22 further includes a second positioning screw 226, and the second positioning screw 226 penetrates the arc-shaped opening 2213 and the screw hole h2 and is connected with the screw. The hole h2 is screwed together to limit the rotation range of the handle portion 22422 , the limiting handle 2242 and the circular sheet body 2240 .

In some embodiments, the handle 2243 has a locking hole 22430 , and the support assembly 22 further includes a third positioning screw 227 . The third positioning screw 227 passes through the locking hole 22430 and is screwed with the locking hole 22430 , and the third positioning screw 227 and the rotary handle 2243 jointly clamp the transmission shaft A to limit the rotation of the transmission shaft A. In addition, the support assembly 22 of the height adjustment device 2 further includes a pressing element 228 . The pressing member 228 is connected to the supporting member 224 and provides a pressing force to press the supporting member 224 in the second direction d2. In some embodiments, the pressing element 228 is a torsion spring, and the second body 221 has a protruding shaft 2214 and a hook portion 2215 . The center of the torsion spring is sleeved on the protruding shaft 2214 , one end of the torsion spring is hooked on the hook portion 2215 , and the other end of the torsion spring presses the supporting element 224 .

It should be noted that in the height adjustment device 1 shown in FIGS. 1 to 4, when the locking element 15 is locked relative to the locking portion 1221, the second body 121 is driven by the second locking platform 122 along the rotation axis. Rotation is preferably counterclockwise, but not limited to this; when the locking element 15 is loosened from the locking portion 1221, the second limiting portion 123 is driven by the restoring force of the elastic portion 143 to drive the second body 121 along the rotating shaft 13. The rotation system is preferably clockwise, but it is not limited to this. In the height adjustment device 2 shown in FIGS. 5 to 8 , when the locking element 25 is locked relative to the locking portion 2221 , the second body 221 is driven by the second locking platform 222 to rotate along the rotating shaft 23 clockwise Rotation is preferable, but not limited thereto; the locking element 25 is loosened relative to the locking portion 2221 , and the second limiting portion 223 is driven by the restoring force of the elastic portion 243 to drive the second body 221 to rotate along the rotating shaft 23 to rotate counterclockwise is better, but not limited to this.

Please refer to Figure 9 in conjunction with Figures 1 and 5, wherein Figure 9 is a schematic diagram showing the relationship between the drive shaft of the printing platform, the supporting element and the third positioning screw shown in Figures 1 and 5. In some embodiments, the drive shaft A of the printing platform is simultaneously supported by the support member 124 of the support member 12 of the height adjustment device 1 and the support member 224 of the support member 22 of the height adjustment device 2, and after the height adjustment is performed, The height of the transmission shaft A can be fixed through the third positioning screw 127 of the support member 12 of the height adjustment device 1 and the third positioning screw 227 of the support member 22 of the height adjustment device 2 after the adjustment is completed. In addition, when the third positioning screw 127 of the support assembly 12 of the height adjustment device 1 and the support assembly of the height adjustment device 2 When the third positioning screws 227 of the component 22 are not locked, if the supporting element 124 is rotated, since the transmission shaft A is connected to the supporting element 124 and the supporting element 224 and rotates coaxially, the supporting element 224 will rotate synchronously and complete the fine-tuning action. That is to say, the user only needs to adjust the support element 124 of the support element 12 of the single height adjustment device 1 or the support element 224 of the support element 22 of the height adjustment device 2 to realize height fine adjustment.

Please refer to Figures 10, 11 and 12 in conjunction with Figures 1 and 5, wherein Figure 10 is a schematic diagram showing the structure of a printing platform and applicable printing equipment according to an embodiment of the present application, Figure 11 Figure 10 shows a front view of the structure of the printing platform and its applicable printing equipment, and Figure 12 shows a schematic view of the detailed structure of the area Z shown in Figure 11. As shown in FIG. 1 , FIG. 5 , and FIGS. 10 to 12 , according to an embodiment of the present invention, the printing platform 3 is suitable for the printing apparatus 4 , wherein the printing apparatus 4 has a bracket 41 . The printing platform 3 includes a first transmission shaft 31 , a second transmission shaft 32 , a platform body 33 , two first height adjustment devices and two second height adjustment devices. In this embodiment, the first height adjustment device is the height adjustment device 1 shown in FIG. 1 , and the second height adjustment device is the height adjustment device 2 shown in FIG. 5 . The two height adjustment devices 1 and the two height adjustment devices 2 are preferably installed at diagonal positions, but not limited thereto. One end of the platform body 33 is sleeved on the first transmission shaft 31 , and the other end of the platform body 33 is supported on the second transmission shaft 32 . The two height adjustment devices 1 respectively carry the first transmission shaft 31 on the first side of the platform body 33 and the second transmission shaft 32 on the second side of the platform body 33 . The element 15 is locked relative to the locking portion 1221 , and the second body 121 is driven by the second locking platform 122 to rotate counterclockwise along the rotating shaft 13 to increase the height of the platform body 33 , and when the locking element 15 is opposite to the locking portion 1221 After loosening, the second limiting portion 123 is driven by the restoring force of the elastic portion 143 to drive the second body 121 to rotate clockwise along the rotating shaft 13 , so as to reduce the height of the platform body 33 . The two height adjusting devices 2 respectively carry the second transmission shaft 32 on the first side of the platform body 33 and the first transmission shaft 31 on the second side of the platform body 33 . , wherein in each height adjustment device 2, when the locking element 25 is locked relative to the locking portion 2221, the second body 221 is driven by the second locking platform 222 to rotate clockwise along the rotating shaft 23, so as to make the height of the platform body 33 rises, and when the locking element 25 is released relative to the locking portion 2221, the second limiting portion 223 is elastically The restoring force of the portion 243 drives the second body 221 to rotate counterclockwise along the rotating shaft 23 , so as to reduce the height of the platform body 33 .

According to the concept of the present case, the first body 111 and the second body 121 are fixed to the printing apparatus 4 , and preferably fixed to the bracket 41 of the printing apparatus 4 , but not limited thereto. The first body 111 and the second body 121 are sheet-like bodies. The elastic element 14 and the elastic element 24 may be, for example, but not limited to, tension springs. The first direction d1 is vertically upward relative to the horizontal plane on which the printing device 4 is placed, and the second direction d2 is vertically downward relative to the horizontal plane on which the printing device 4 is placed.

To sum up, the present application provides a height adjustment device and a printing platform suitable for it. By adjusting the tightness of the locking element relative to the locking portion and using the elastic element to limit the degree of freedom of the supporting element, the supporting element can be relatively fixed to the element. Rotate to drive the transmission shaft to move along the first direction or the second direction, so as to achieve the effect of simple height adjustment. Further, through the meshing of the toothed area of the supporting element and the positioning tip of the second body, and the lengths of the radii formed by each toothed portion to the axis of the transmission shaft are different from each other, it is easy to set the height displacement of each toothed portion. The height can be easily adjusted by rotating the support element. At the same time, by utilizing the weight of the printing platform itself and the pressing force provided by the pressing element, the teeth of the supporting element can indeed engage with the positioning tip. In addition, through the first locating screw, the second locating screw and the third locating screw of the supporting component, the supporting component and the fixing component can be stably fixed after adjustment and fine adjustment, so that the adjusted height is stable.

Even though the present invention has been described in detail by the above-mentioned embodiments, various modifications can be made by those skilled in the art, but they are all within the scope of the appended claims.

1: Height adjustment device

11: Fixed components

111: The first body

112: The first lock payment platform

113: The first limit part

12: Support components

121: The second body

1214: Convex shaft

1215: hook part

122: Second lock payment platform

1221: Lock Payment Department

123: The second limit part

124: Support element

127: The third set screw

128: Press components

13: Spindle

14: Elastic element

141: First End

142: Second end

143: Elastic part

15: Locking components

d1: first direction

d2: the second direction

G: Gap

L1: first length

L2: second length

Claims (10)

A height adjustment device, suitable for a printing platform of a printing device, the height adjustment device includes: a fixing component including a first body, a first locking platform and a first limiting portion, wherein the first locking platform and the first limiting portion are disposed on the first body; A supporting component includes a second body, a second locking platform, a second limiting portion and a supporting element, wherein the second locking platform and the second limiting portion are disposed on the second body, the The second locking platform is disposed between the first locking platform and the second limiting portion, the second locking platform includes a locking portion, and the supporting element is passed through the second body and supports the row One of the drive shafts of the printing platform; a rotating shaft passing through the first body and the second body; An elastic element has a first end portion, a second end portion and an elastic portion, wherein the elastic portion is connected with the first end portion and the second end portion, and the first end portion is connected with the first limit The position part is connected and limited by the first limit part, and the second end part is connected with the second limit part and limited by the second limit part, so that the elastic part is limited by the first limit part. tension stretch of the end and the second end; and A locking element penetrates through the first locking platform and the second locking platform and is locked with the locking portion, wherein the locking element is located between the first locking platform and the second locking platform The space has a first length, and the locking element protrudes from the second locking platform by a second length; Wherein, when the locking element is locked relative to the locking portion, the first length decreases and the second length increases, the second body is driven by the second locking platform to rotate along the rotating shaft, and the supporting element is driven by the The second body is driven to drive the transmission shaft to move in a first direction; Wherein, when the locking element is released relative to the locking portion, the first length increases and the second length decreases, and the second limiting portion is driven by the restoring force of the elastic portion to drive the second body to rotate along the rotating shaft, and The supporting element is driven by the second body to drive the transmission shaft to move in a second direction. The height adjustment device as claimed in claim 1, wherein a gap is formed between the first body and the second body, the gap provides a space for the second body to rotate relative to the first body, and the second body has a through slot , the support assembly further includes a first positioning screw, the first positioning screw penetrates the through slot and the first body to limit the support element to drive the transmission shaft to move along the first direction and the second direction. range of movement. The height adjustment device as claimed in claim 1, wherein the supporting element is a circular sheet-like body and has a toothed area, the toothed area has a plurality of toothed portions, the second body has a positioning tip, and the The positioning tip engages with one of the plurality of teeth of the toothed area. The height adjustment device as claimed in claim 3, wherein the toothed area is formed along an involute, and the lengths of the radius formed by each of the toothed portions to the axis of the transmission shaft of the plurality of toothed portions are different from each other. different. The height adjustment device according to claim 3, wherein the support element comprises a limit handle and a rotary handle, the limit handle and the rotary handle are arranged on opposite sides of the circular sheet body, the limit The pull handle has a limiting surface and a handle portion, the limiting surface is in direct contact with the second body, the handle portion has a screw hole, the second body has an arc opening, and the support assembly further includes A second positioning screw, and the second positioning screw penetrates the arc-shaped opening and the screw hole and is screwed with the screw hole, so as to limit the handle portion, the limit handle and the circular sheet-shaped body range of rotation. The height adjustment device as claimed in claim 5, wherein the handle has a locking hole, and the support assembly further comprises a third positioning screw, the third positioning screw penetrates through the locking hole and is connected with the locking hole screwed together, and the third positioning screw and the rotary handle jointly clamp the transmission shaft to limit the rotation of the transmission shaft. The height adjusting device according to claim 3, wherein the supporting component further comprises a pressing element, the pressing element is connected with the supporting element, and provides a pressing force along the second direction to press the supporting element. The height adjusting device according to claim 7, wherein the pressing element is a torsion spring, the second body has a protruding shaft and a hook portion, the center of the torsion spring is sleeved on the protruding shaft, and the torsion spring is One end is hooked on the hook portion, and the other end of the torsion spring presses the supporting element. The height adjustment device according to claim 1, wherein the first body is fixed on the printing device and the first body is a sheet, the first locking platform and the first limiting portion are connected to the first One body is vertical, the second body is a piece, the second locking platform and the second limiting portion are vertical to the second body, the elastic element is a tension spring, and the locking element is a screw, The locking portion is a nut, the first direction is vertically upward relative to a horizontal plane where the printing device is placed, and the second direction is vertically downward relative to the horizontal plane. A printing platform including: a first drive shaft; a second drive shaft; a platform body, one end of the platform body is sleeved on the first transmission shaft, and the other end of the platform body is supported on the second transmission shaft; Two first height adjustment devices respectively carry the first transmission shaft on a first side of the platform body and carry the second transmission shaft on a second side of the platform body, wherein each of the first height adjustment devices According to the height adjustment device according to any one of claims 1 to 9, when the locking element is locked relative to the locking portion, the second body is driven by the second locking platform to rotate counterclockwise along the rotating shaft, In order to raise the height of the platform body, and when the locking element is released relative to the locking portion, the second limiting portion is driven by the restoring force of the elastic portion to drive the second body to rotate clockwise along the rotating shaft, so that the The height of the platform body is reduced; and Two second height adjustment devices, respectively carrying the second transmission shaft on the first side of the platform body and carrying the first transmission shaft on the second side of the platform body, each of the second height adjustment devices The height adjustment device according to any one of claims 1 to 9, and when the locking element is locked relative to the locking portion, the second body is driven by the second locking platform to rotate clockwise along the shaft , so that the height of the platform body is raised, and when the locking element is loosened relative to the locking portion, the second limiting portion is driven by the restoring force of the elastic portion to drive the second body to rotate counterclockwise along the rotating shaft to Reduce the height of the platform body.

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