TW201521963A - Clamping device - Google Patents

Abstract

A clamping device includes a first base, a second base mounted oppositely to the first base, an abutting assembly, and a pressure assembly positioned on the abutting assembly. The second base defines a receiving cavity, and provides a first rack on the bottom of the receiving cavity. The abutting assembly includes a movable member, a first resilient member, a gear, a resistant member, and a second resilient member. An end of the first resilient member resists to the movable member and the other end resists to the bottom of the receiving cavity. The resistant member is connected to the movable member. The resistant member includes a resistant portion oppositely to the movable member. The pressure assembly includes a pressing member and a second rack. The pressing member is mounted on the movable member and adjacent to the resistant portion. An end of the second resilient member resists to the pressing member and the other end resists to the resistant portion. An elasticity of the second resilient member is equal to an elasticity of the first resilient member. The gear is rotatably set on the movable member and meshing to the first rack and the second rack.

Description

Clamping device

The present invention relates to a clamping device, and more particularly to a clamping device for an electronic device.

With the popularization of electronic devices (such as portable communication devices, tablet computers, etc.), in order to fix the electronic device on the desktop, in the car or other occasions for convenient charging or use, the clamping device of the electronic device has emerged. The conventional clamping device generally comprises a seat body and two elastic arms spaced apart from the seat body. The two elastic arms are oppositely disposed and have a certain elasticity, and can be away from or close to each other. In use, an electronic device such as a mobile phone is inserted between the two elastic arms to be clamped and fixed. In the above clamping device, the distance between the two elastic arms is always constant before and after the clamping, and the elastic force cannot be changed when the plastic deformation is not performed, so when the electronic device with different thickness is clamped, the elastic shape variable changes, The clamping force generated by the electronic device is also different. For electronic devices with thinner thickness, looseness may occur; for thicker electronic devices, it is sometimes difficult to insert between two elastic arms, or because the two elastic arms have larger deformation due to larger deformation variables. The elastic clamping force causes the electronic device to be damaged or difficult to pull out.

In view of the above circumstances, it is necessary to provide a holding device capable of maintaining constant force clamping for electronic devices of different thicknesses.

A clamping device for clamping and fixing an electronic device, comprising a clamping seat, the clamping seat comprising a first seat body and a second seat body disposed opposite to each other, the second seat body being a hollow shell and An opening is disposed on one side of the first seat body, and the first seat body is provided with a first rack. The clamping device further includes a resisting component disposed on the opening and a constant disposed on the resisting component a pressing assembly, comprising: a movable member that is disposed on the opening; and a first elastic member that is respectively abutted on the movable member and the second base, the movable member is formed on the movable member a pressure receiving member and a gear in the two seats, and a second elastic member is disposed on the pressure receiving member, the second elastic member has the same elastic modulus as the first elastic member, and the constant pressure assembly includes the same a pressure plate on the two elastic members and a second rack disposed on the pressure plate, the gear gear meshes with the first rack and the second rack, and the movable member of the resisting component is movable in the opening to cooperate with the The first body clamps the electronic device, and the pressure plate of the constant pressure component is movable relative to the movable member to resist The second elastic member generating a force to the movable member, the movable member so that the supporting force is kept constant for different thickness of the electronic device.

The clamping device of the present invention clamps the electronic device by using the movable member disposed on the second seat body, and the gears on the movable member and the first rack and the constant pressure assembly on the second seat body respectively The second rack is engaged, so that when the electronic device moves against the movable member toward the second base body and compresses the first elastic member, the movable member can drive the pressure plate to move toward the second base body, and at the same time, the gear is driven by the second rack The pressing plate moves relative to the movable member such that the second elastic member is compressed and applies a force to the movable member, and the elastic force generated by the first elastic member against the movable member is offset by a part of the elastic member. Since the elastic modulus of the first elastic member and the second elastic member are the same, the offsetting elastic force values are equal, so that the clamping device can maintain a constant clamping force when clamping electronic devices of different thicknesses.

Figure 1 is a schematic view showing the state of use of the holding device of the present invention.

Figure 2 is a perspective cross-sectional view of the holding device of Figure 1.

Figure 3 is an exploded perspective view of the holding device of Figure 2;

Figure 4 is an exploded perspective view of another angle of view of the holding device of Figure 3.

Figure 5 is a cross-sectional view of the holding device of Figure 1 taken along line V-V.

Referring to FIG. 1 and FIG. 2 together, the clamping device 100 of the embodiment of the present invention is used for clamping and fixing an electronic device 200 such as a mobile phone or a tablet computer having a thickness of H1 on a desktop, in a car or other occasions. Charge or use. The clamping device 100 includes a clamping seat 10 , a resisting assembly 30 disposed on the clamping seat 10 , and a constant pressure assembly 50 disposed in the resisting assembly 30 .

Referring to FIG. 3 together, the holder 10 is substantially in the shape of a U-shaped block, and includes a main body 12 and a first seat body 14 and a second seat body 16 which are fixedly disposed at opposite ends of the main body 12, and The body 14 and the second seat 16 are located on the same side of the body 12.

The second seat body 16 is a hollow casing, and a receiving cavity 161 is defined therein, and an opening 163 is formed on one side of the first seat body 14. The receiving cavity 161 communicates with the outside through the opening 163 for receiving the resisting assembly 30 and the constant pressure assembly 50. The second body 16 is disposed with two first guiding members 165 spaced apart from each other in the bottom wall of the receiving cavity 161, and two second guiding members 167 are disposed between the two first guiding members 165. In the present embodiment, the first guiding member 165 and the second guiding member 167 are both guiding sleeves whose axes are perpendicular to the first base body 14 and the second seat body 16. The second guiding member 167 and the two first guiding members 165 are spaced apart from each other and are disposed toward the first base body 14. The second guiding members 167 are respectively disposed with the first rack 169 facing the outer walls of the two sides. The teeth of the two first racks 169 are disposed opposite to each other, and the dividing lines of the two first racks 169 are parallel to the corresponding second. The axis of the guide 167.

Referring to FIG. 4 , the resisting component 30 is movably disposed at the opening 163 and received in the receiving cavity 161 . The resisting assembly 30 includes a movable member 32 and a gear 34 disposed on the movable member 32, a pressure receiving member 36, a first elastic member 38, and a second elastic member 39.

The movable member 32 is disposed on the opening 163 and protrudes from the second base 16 and is movable relative to the second base 16 . The movable member 32 includes a body 321 , a guiding portion 323 formed at one end of the body 321 , and a first guiding post 325 and a connecting portion 327 formed on the body 321 . The body 321 has a substantially rectangular plate shape and is disposed on a side of the second base body 16 facing the first seat body 14. There is a certain gap 3210 between the body 321 and the first base body 14 (see FIG. 2 ) to clamp the electronic device 200 with the first base body 14 . The width of the gap 3210 is D1, and the width D1 of the gap 3210 is smaller than the thickness H1 of the electronic device 200 to be clamped (refer to FIG. 1). The guiding portion 323 is formed by bending one end of the body 321 and is engaged with the opening 163 of the second seat body 16. The first guide post 325 is formed to protrude from the body 321 toward one side of the receiving cavity 161. In this embodiment, the number of the first guiding columns 325 is two, and each of the first guiding columns 325 is correspondingly movably received in a first guiding member 165. The first guide post 325 cooperates with the first guide member 165 to guide the direction of movement of the movable member 32 relative to the second seat body 16. In the present embodiment, the number of the connecting portions 327 is two. Each of the connecting portions 327 is in the form of a strip-shaped plate, and the two connecting portions 327 are disposed in parallel between the two first guiding columns 325 for mounting the gears 34.

In this embodiment, the number of the gears 34 is two, and the two gears 34 are rotatably disposed at one end of the corresponding connecting portion 327 away from the body 321 and between the two second guiding members 167, and respectively corresponding to the first A rack 169 is engaged.

In this embodiment, the number of the pressure receiving members 36 is two, and the two pressure receiving members 36 are respectively disposed on the body 321 adjacent to the two first guiding columns 325. Each of the pressure receiving members 36 includes a mounting portion 361 and a pressure receiving portion 363 formed at one end of the mounting portion 361. The mounting portion 361 is disposed perpendicular to the body 321 and protrudes between the corresponding first guiding member 165 and the second guiding member 167. The pressure receiving portion 363 is substantially in the shape of a plate, and is substantially connected to the one end of the mounting portion 361 away from the body 321 at a substantially central position. The pressure receiving portion 363 is parallel to the body 321 , and one end opposite to the first guiding post 325 is provided with a avoiding groove 3631 to allow the first guiding member 165 to pass therethrough. The other end of the opposite recessed groove 3631 of the pressure receiving portion 363 is provided with a first positioning portion 3633 which is formed by the pressure receiving portion 363 protruding toward one side of the body 321 .

In this embodiment, the number of the first elastic member 38 and the second elastic member 39 is two. The first elastic members 38 are respectively sleeved on the two first guiding columns 325, and one end abuts the body 321 and the other end abuts the end of the corresponding second guiding member 167. The same ends of the second elastic members 39 are respectively sleeved on the two first positioning portions 3633. The first elastic member 38 and the second elastic member 39 have a modulus of elasticity K.

The constant pressure assembly 50 is movably disposed on the body 321 and housed in the receiving cavity 161. The constant pressure assembly 50 includes a pressure plate 52 and a third elastic member 54 and a second rack 56 disposed on the pressure plate 52.

The pressure plate 52 has a substantially rectangular plate shape and is disposed on a side of the body 321 facing the receiving cavity 161. A substantially central portion of the pressure plate 52 is provided with two through holes 521 corresponding to the two connecting portions 327 for receiving the corresponding connecting portion 327 and the gear 34 on the connecting portion 327. Two second positioning portions 523 are formed on the two ends of the pressing plate 52, and each of the second positioning portions 523 protrudes into the second elastic member 39 disposed on the corresponding first positioning portion 3633. The second elastic member 39 is positioned between the pressure receiving portion 363 between the pressure receiving portion 363 and one end abuts against the pressure receiving portion 363 , and the other end abuts against the pressure plate 52 , so that the pressure plate 52 is movably supported in the resisting assembly 30 . Two second guiding members 525 are disposed on the pressing plate 52, and each of the second guiding posts 525 is movably protruded into the corresponding second guiding member 167.

In this embodiment, the number of the third elastic members 54 is two, and the third elastic members 54 are respectively sleeved on the second guide posts 525. One end of each third elastic member 54 abuts against the pressure plate 52 and the other end abuts against the end of the corresponding second guide member 167.

The second rack 56 is disposed between the two through holes 521 and protrudes between the two gears 34. The two opposite sides are provided with a rack engaging portion 561. The rack engaging portions 561 on both sides of the second rack 56 mesh with the two gears 34, respectively.

When the clamp device 100 of the present embodiment is assembled, first, the second rack 56 is placed on the pressure plate 52, and the gear 34 is attached to the connection portion 327. Then, the connecting portion 327 and the gear 34 are passed through the through hole 521 and meshed with the rack engaging portion 561 to laminate the pressing plate 52 on the body 321. Since the second elastic member 39 abuts against the pressure plate 52 and the other end abuts against the pressure receiving portion 363 of the movable member 32, the constant pressure assembly 50 is movably supported in the resisting assembly 30. Then, the first elastic member 38 is sleeved on the first guiding post 325, the second elastic member 39 is sleeved on the first positioning portion 3633, and the third elastic member 54 is sleeved on the second guiding post 525. The assembled resisting component 30 and the constant pressure component 50 are mounted on the opening 163 of the second base 16 such that the first guiding post 325 protrudes into the corresponding first guiding member 165, and the second guiding post 525 The protrusion protrudes into the corresponding second guiding member 167. Finally, the second base 16 is mounted on the main body 12, and the first base 14 is mounted on the first body 12 in parallel with the second base 16.

Referring to FIG. 5, when the clamping device 100 of the present embodiment is used, the end portion of the electronic device 200 having the thickness H1 is pressed against the guiding portion 323 of the movable member 32, and the electronic device 200 is pushed toward the main body 12, so that The movable member 32 moves toward the second seat body 16 such that the height of the air gap 3210 becomes high until the height of the air gap 3210 can accommodate the electronic device 200, and the electronic device 200 is inserted into the air gap 3210. Since the thickness H1 of the electronic device 200 is greater than the width D1 of the slit 3210, the difference is assumed to be:

△h=H1-D1;

After the electronic device 200 is inserted into the gap 3210, the first elastic member 38 generates a deformation amount a1=Δh=H1-D1, and the force of the first elastic member 38 on the movable member 32 is F1.

F1=K*a1;

At the same time, the second elastic member 39 generates the shape variable a2, and the force acting on the movable member 32 is F2.

F2=K*a2;

At this time, the force of the electronic device 200 on the movable member 32 is F3. After the clamping device 100 clamps the electronic device 200, the movable member 32 remains in a stationary state, and the force is balanced.

F1=F2+F3;

F3=K*a1-K*a2=K*(a1-a2);

It can be seen from Newton's third law that the supporting force FN of the movable member 32 to the electronic device 200 is equal to the force F3 of the electronic device 200 to the movable member 32, so:

FN=F3=K*(a1-a2)

When another electronic device 300 having a thickness H2 is sandwiched by the holding device 100, it is assumed that H2-H1=b. After the electronic device 300 is inserted into the gap 3210, the movable member 32 is closer to the distance of the second base 16 from the use of the clamping electronic device 200, that is, the total shape variable generated by the first elastic member 38 is ( A1+b), whose force on the movable member 32 is F1', then

F1'=K*(a1+b);

While the movable member 32 is moving, the second elastic member 39 and the constant pressure assembly 50 are moved toward the bottom wall of the receiving cavity 161 by a distance b. In this process, one side of the gear 34 meshes with the first rack 169. Rotating, the other side of the second rack 56 simultaneously meshes with the second rack 56 to move the second rack 56 toward the bottom wall of the receiving cavity 161, thereby driving the constant pressure assembly 50 to move relative to the movable member 32 by a distance b, that is, At this time, the total elastic variable generated by the second elastic member 39 is (a2+b), and the force of the second elastic member 39 to the movable member 32 is F2'.

F2'=K*(a2+b);

At this time, the force of the electronic device 300 on the movable member 32 is F3'. After the clamping device 100 clamps the electronic device 300, the movable member 32 remains in a stationary state, and the force is balanced.

F1' = F2' + F3';

F3'= K*(a1+b)-K*(a2+b)=K*(a1-a2);

It can be seen from Newton's third law that the supporting force FN' of the movable member 32 to the electronic device 300 is equal to the force F3' of the electronic device 300 for the movable member 32, so:

FN'=F3'=K*(a1-a2)=FN.

It can be seen from the above analysis that when the electronic device 200 having the thickness H1 is sandwiched by the clamping device 100, the supporting force FN generated by the electronic device 200 is equal to the electronic device 300 when the electronic device 300 having the thickness H2 is clamped. The resulting support force FN'. In the same way, no matter how the thickness value H1 of the electronic device 200 changes, the supporting force FN of the electronic device 200 held by the clamping device 100 is always unchanged.

The clamping device 100 of the present invention clamps the electronic device 200 by using the movable member 32 movably disposed on the second base body 16, and the gears 34 on the movable member 32 and the first teeth on the second base 16 respectively. The strip 169 and the second rack 56 on the constant pressure assembly 50 are engaged, so that when the electronic device 200 moves against the movable member 32 toward the second base 16 and compresses the first elastic member 38, the movable member 32 can drive the pressing plate 52 toward The second body 16 is moved. At the same time, the gear 34 drives the pressure plate relative to the movable member 32 by the second rack 56, so that the second elastic member 39 is compressed and urges the movable member 32, so that the first elastic member 38 is The compression produces a portion of the spring force generated by the movable member 32. Since the elastic coefficients of the first elastic member 38 and the second elastic member 39 are the same, the offsetting elastic force values are equal, so that the clamping device 100 can maintain a constant clamping force when clamping the electronic device 200 of different thicknesses. .

It can be understood that the width D1 of the gap 3210 between the movable member 32 and the first seat body 14 can be 0 or any value, and it is only required to ensure that the electronic device 200 to be fixed can be clamped.

It can be understood that the first guiding member 165 and the first guiding post 325 can be omitted. When the clamping device 100 is assembled, only one end of the first elastic member 38 needs to be abutted against the body 321 and the other end abuts the receiving cavity 161. The bottom wall can be.

It can be understood that the second guiding member 167 and the second guiding post 525 can be omitted. When the clamping device 100 is assembled, only one end of the third elastic member 54 needs to be abutted against the pressing plate 52, and the other end abuts the receiving cavity 161. The bottom wall serves to cushion the constant pressure component 50. Even the third elastic member 54 can be omitted.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

100‧‧‧Clamping device

10‧‧‧Clamping seat

12‧‧‧ Subject

14‧‧‧First body

16‧‧‧Second body

161‧‧‧ containment chamber

163‧‧‧ openings

165‧‧‧First guide

167‧‧‧Second guide

169‧‧‧First rack

30‧‧‧Resist the component

32‧‧‧moving parts

321‧‧‧ body

3210‧‧‧ gap

D1‧‧‧ gap width

323‧‧‧Guide

325‧‧‧first guide column

327‧‧‧Connecting Department

34‧‧‧ Gears

36‧‧‧ Pressure parts

361‧‧‧Installation Department

363‧‧‧ Pressure Department

3631‧‧‧ escaping slot

3633‧‧‧First Positioning Department

38‧‧‧First elastic parts

39‧‧‧Second elastic parts

K‧‧‧elastic coefficient

50‧‧‧Constant pressure components

52‧‧‧ pressure plate

521‧‧‧through hole

523‧‧‧Second Positioning Department

525‧‧‧Second guide post

54‧‧‧ Third elastic parts

56‧‧‧second rack

561‧‧‧Rack meshing

200,300‧‧‧Electronic devices

H1, H2‧‧‧ electronic device thickness

no

100‧‧‧Clamping device

12‧‧‧ Subject

14‧‧‧First body

16‧‧‧Second body

165‧‧‧First guide

167‧‧‧Second guide

169‧‧‧First rack

30‧‧‧Resist the component

3210‧‧‧ gap

D1‧‧‧ gap width

327‧‧‧Connecting Department

34‧‧‧ Gears

361‧‧‧Installation Department

363‧‧‧ Pressure Department

50‧‧‧Constant pressure components

52‧‧‧ pressure plate

Claims (10)

A clamping device for clamping and fixing an electronic device, comprising a clamping seat, wherein the clamping seat comprises: a first seat body and a second seat body disposed opposite to each other, the second seat body is hollow The housing is provided with an opening toward one side of the first base body, and the second seat body is provided with a first rack. The clamping device further includes a resisting component disposed on the opening and disposed at the resisting a constant pressure component on the component, the resisting component includes a movable member disposed on the opening, and a first elastic member that is respectively abutted on the movable component and the second base body, and the movable component is formed on the movable component a pressure receiving member and a gear house accommodated in the second seat body, and a second elastic member is disposed on the pressure receiving member, the second elastic member and the first elastic member have the same elastic modulus, and the constant pressure assembly includes a pressure plate pressed on the second elastic member and a second rack disposed on the pressure plate, the gear meshes with the first rack and the second rack, and the movable member of the resisting assembly can be in the opening Acting to cooperate with the first body to clamp the electronic device, and the pressure plate of the constant pressure component can be opposite to the live The pressing member is moved to the second elastic member generating a force to the movable member, the movable member so that the supporting force is kept constant for different thickness of the electronic device. The clamping device of claim 1, wherein the second body is further provided with a first guiding member, the movable member is provided with a first guiding post corresponding to the first guiding member, and the first elastic member sleeve The first guiding post is movably received in the first guiding member, the first elastic member abutting the movable member and the other end abutting the end of the first guiding member. The holding device of claim 1, wherein the pressure receiving member comprises a mounting portion vertically disposed on the movable member, and a pressure receiving portion formed at an end of the mounting portion away from the movable member, the first Two elastic members are disposed on the pressure receiving portion. The clamping device of claim 3, wherein the pressure receiving portion protrudes toward one side of the movable member to form a first positioning portion, and the first positioning portion protrudes into one end of the second elastic member. The tear film mechanism of claim 4, wherein the clamping assembly further comprises a mounting member mounted on the mounting member and connected to the robot by the mounting member. The clamping device of claim 1, wherein the pressing plate has a second positioning portion corresponding to the first positioning portion, and the second positioning portion protrudes into the other end of the second elastic member, so that The second elastic member is positioned between the pressure receiving portion and the pressure plate. The clamping device of claim 6, wherein the second body is further provided with a second guiding member, and the second guiding member is provided with a second guiding column corresponding to the second guiding member, the second guiding column is movable The first rack is disposed in the second guiding member, and the first rack is disposed on the outer wall of the second guiding post. The clamping device of claim 1, wherein the movable member is further provided with a connecting portion, and the gear is rotatably disposed on the connecting portion. The clamping device of claim 1, wherein the clamping seat further comprises a main body, the first seat body and the second seat body are oppositely disposed at two ends of the main body, and the first seat body and The second seat is located on the same side of the body. The clamping device of claim 1, wherein the movable member comprises a body and a guiding portion, the body is disposed on the opening and has a gap with the first seat to match the first seat The body clamps the electronic device, and the guiding portion is formed by bending the body away from one end of the main body and engaging with the opening of the second seat body.