Scissor Foot Assembly Device

Abstract

The present invention discloses a scissor foot assembly device, comprising: a body, a clamping component and a pressing component; the clamping component is slidably mounted on the body, the clamping component can abut against the side wall surface of the scissor foot, and realizes the clamping of the scissor foot through interference fit; the pressing component is slidably mounted on the body, the pressing component can abut against the surface of the scissor foot, and realizes the assembly of the scissor foot and the keyboard by pushing the scissor foot. According to an embodiment of the present invention, a scissor foot assembly device adopts a clamping component slidably mounted on the body to clamp the scissor foot through interference fit, and adopts a pressing component slidably mounted on the body to push the scissor foot, so as to cooperate with the clamping component to assemble the scissor foot and the keyboard. The assembly efficiency is high and the degree of automation is high.

Description

Technical Field

[0001] The present invention relates to the assembly of scissor feet, and particularly to a scissor foot assembly device. Background Art

[0002] The scissor foot is one of the important components on the keyboard, and its function is to shorten the key travel. For example, Patent No. CN110729145A discloses a scissor foot. Compared with the traditional "X-structure" scissor foot, this scissor foot is thinner and lighter, and thus has become more and more popular. At the same time, problems have also arisen. Due to its thinness and lightness, it is more difficult to assemble. The existing assembly mainly relies on manual assembly, and the efficiency is very low.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a scissor foot assembly device, which can greatly improve the assembly efficiency of scissor feet.

[0005] To achieve the above purpose, an embodiment of the present invention provides a scissor foot assembly device. The scissor foot has a left bracket and a right bracket that are hinged to each other, and includes:

[0006] A body;

[0007] A clamping assembly, slidably mounted on the body. The clamping assembly can abut against the side wall surface of the scissor foot and realize the clamping of the scissor foot through interference fit. The clamping assembly includes a first clamping member and a second clamping member. The first clamping member has a first clamping portion that abuts against the side wall surface of one of the left bracket and the right bracket of the scissor foot. The second clamping member has a second clamping portion that abuts against the side wall surface of the other of the left bracket and the right bracket of the scissor foot. The first clamping portion has at least one first contact portion that abuts against the inner wall surface of one of the left bracket and the right bracket of the scissor foot. The second clamping portion has at least one second contact portion that abuts against the inner wall surface of the other of the left bracket and the right bracket of the scissor foot. At least one of the first contact portions is disposed opposite to one of the second contact portions; and

[0008] A material pressing assembly, slidably mounted on the body. The material pressing assembly can abut against the surface of the left bracket or the right bracket of the scissor foot and realize the assembly of the scissor foot with the keyboard by pushing the left bracket or the right bracket of the scissor foot. The material pressing assembly includes a material pressing member, and the material pressing member has a third contact portion that abuts against the surface of the left bracket or the right bracket of the scissor foot;

[0009] During the assembly process of the scissor feet and the keyboard, the movement of the body drives the movement of the clamping assembly and the material pressing assembly. Initially, the first clamping member moves and drives the movement of one of the left and right brackets of the scissor feet to engage with the keyboard. Then, the second clamping member and the material pressing member drive the movement of the other bracket of the left and right brackets of the scissor feet, and the angle between the left bracket and the right bracket is further increased. The material pressing member drives the third contact portion to continue moving, thereby generating a driving force on the other bracket of the left and right brackets of the scissor feet. Under the action of the driving force, the other bracket of the left and right brackets of the scissor feet is engaged with the keyboard.

[0010] In one or more embodiments of the present invention, the third contact portion has an inclined surface that can abut against the surface of the left or right bracket of the scissor feet. During the assembly process, the third contact portion moves so that the inclined surface changes from surface contact with the left or right bracket of the scissor feet to line contact with the left or right bracket of the scissor feet, thereby pushing the left or right bracket of the scissor feet.

[0011] In one or more embodiments of the present invention, the bottom of the first clamping member or the second clamping member further has an abutting portion that can abut against the surface of the left or right bracket of the scissor feet.

[0012] In one or more embodiments of the present invention, a first strip-shaped hole and a second strip-shaped hole are formed on the body. The clamping assembly further includes a first connecting shaft that simultaneously passes through the first strip-shaped hole and the first clamping member, and a second connecting shaft that simultaneously passes through the second strip-shaped hole and the second clamping member. The first clamping member cooperates with the first connecting shaft and can reciprocate along the first strip-shaped hole, and the second clamping member cooperates with the second connecting shaft and can reciprocate along the second strip-shaped hole.

[0013] In one or more embodiments of the present invention, a third strip-shaped hole is formed on the body. The material pressing assembly further includes a third connecting shaft that simultaneously passes through the third strip-shaped hole and the material pressing member. The material pressing member cooperates with the third connecting shaft and can reciprocate along the third strip-shaped hole.

[0014] In one or more embodiments of the present invention, the scissor feet assembly device further includes an elastic component. The elastic component is cooperatively installed with the body, the clamping assembly, and the material pressing assembly, and is used to provide a buffering force for the clamping assembly and the material pressing assembly.

[0015] In one or more embodiments of the present invention, the elastic component includes an abutting shaft and an elastic member that abuts against the abutting shaft. The elastic member cooperates with the abutting shaft through its own elasticity to provide a buffering force for the clamping assembly and the material pressing assembly.

[0016] Compared with the prior art, a scissor foot assembly device according to an embodiment of the present invention adopts a clamping component slidably mounted on the body, realizes the clamping of the scissor foot through interference fit, and uses a pressing component slidably mounted on the body to push the scissor foot, so as to cooperate with the clamping component to assemble the scissor foot with the keyboard. The assembly efficiency is high and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of a scissor foot in the prior art;

[0018] Figure 2 is a schematic structural view of a scissor foot assembly device according to an embodiment of the present invention;

[0019] Figure 3 is a schematic structural view of a first clamping member according to an embodiment of the present invention;

[0020] Figure 4 is a schematic structural view of a second clamping member according to an embodiment of the present invention;

[0021] Figure 5 is a schematic structural view of a pressing member according to an embodiment of the present invention;

[0022] Figure 6 is a schematic side view of a scissor foot assembly device according to an embodiment of the present invention;

[0023] Figure 7 is a schematic structural view of a body according to an embodiment of the present invention;

[0024] Figure 8 is a schematic structural view of the body from another perspective according to an embodiment of the present invention;

[0025] Figure 9 is a schematic structural view of an elastic component according to an embodiment of the present invention;

[0026] Figure 10 is a schematic side view of a scissor foot assembly device during assembly according to an embodiment of the present invention;

[0027] Figure 11 is a schematic structural view of a scissor foot assembly device according to another embodiment of the present invention;

[0028] Figure 12 is a schematic structural view of a first clamping member according to another embodiment of the present invention;

[0029] Figure 13 is a schematic structural view of a second clamping member according to another embodiment of the present invention;

[0030] Figure 14 It is a schematic structural view of a pressure member according to another embodiment of the present invention;

[0031] Figure 15 It is a schematic side structural view of a scissor foot assembly device according to another embodiment of the present invention. Specific embodiments

[0032] The following will describe in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. However, it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0033] Unless otherwise clearly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0034] As Figure 1 shown, the scissor foot 100 includes a left bracket 110 and a right bracket 120 which are hinged. The left bracket 110 includes a first connecting beam 111, and a second connecting beam 112 and a third connecting beam 113 connected to both ends of the first connecting beam 111. The right bracket 120 includes a fourth connecting beam 121, and a fifth connecting beam 122 and a sixth connecting beam 123 connected to both ends of the fourth connecting beam 121. The second connecting beam 112 is hinged to the fifth connecting beam 122, and the third connecting beam 113 is hinged to the sixth connecting beam 123. The scissor foot 100 has been disclosed, and the scissor foot 100 is cited in the following embodiments only for illustrative purposes to help understand the technical solution of the present invention more easily.

[0035] Embodiment 1:

[0036] As Figure 2 shown, a scissor foot assembly device according to a preferred embodiment of the present invention includes: a body 1, and a clamping assembly 2 and a pressure member assembly 3 which are cooperatively installed with the body 1. The clamping assembly 2 is slidably installed on the body 1. The clamping assembly 2 can abut against the side wall surface of the scissor foot 100 and realize the clamping of the scissor foot 100 through interference fit. The pressure member assembly 3 is slidably installed on the body 1. The pressure member assembly 3 can abut against the upper surface of the scissor foot 100 and realize the assembly of the scissor foot 100 and the keyboard by pushing the scissor foot 100. Both the clamping assembly 2 and the pressure member assembly 3 are installed at the lower end of the body 1.

[0037] As Figure 2As shown, the clamping assembly 2 includes a first clamping member 21 and a second clamping member 22. The first clamping member 21 and the second clamping member 22 are arranged opposite to each other. The first clamping member 21 and the second clamping member 22 cover the lower end of the body 1. During the assembly process, the first clamping member 21 and the second clamping member 22 act in sequence driven by the body 1 to assemble the scissor legs 100 with the keyboard.

[0038] As Figure 3 shown, the bottom of the first clamping member 21 has a first clamping portion 211, and at least two first clamping portions 211 are provided. The opposite side surfaces of the two first clamping portions 211 can respectively abut against the outer side wall surfaces of the second connecting beam 112 and the third connecting beam 113. The distance between the opposite side surfaces of the two first clamping portions 211 is less than the distance between the outer side wall surfaces of the corresponding second connecting beam 112 and the third connecting beam 113, so as to achieve an interference fit between the two first clamping portions 211 and the corresponding second connecting beam 112 and third connecting beam 113. The bottom of the first clamping member 21 also has an abutting portion 212. In one embodiment, two abutting portions 212 can be provided. The bottoms of the two abutting portions 212 can respectively abut against the upper surfaces of the corresponding second connecting beam 112 and third connecting beam 113.

[0039] As Figure 3 and Figure 2 shown, a first mounting hole 213 penetrating the first clamping member 21 is formed in the first clamping member 21 along a first direction. The first direction is the x-axis direction. The clamping assembly 2 further includes a first connecting shaft 23, and the first connecting shaft 23 passes through the first mounting hole 213. The first clamping member 21 is cooperatively mounted with the body 1 through the first connecting shaft 23.

[0040] As Figure 4 shown, the bottom of the second clamping member 22 has a second clamping portion 221. At least two second clamping portions 221 are provided. The opposite side surfaces of the two second clamping portions 221 can respectively abut against the outer side wall surfaces of the fifth connecting beam 122 and the sixth connecting beam 123. The distance between the opposite side surfaces of the two second clamping portions 221 is less than the distance between the outer side wall surfaces of the corresponding fifth connecting beam 122 and the sixth connecting beam 123, so as to achieve an interference fit between the two second clamping portions 221 and the corresponding fifth connecting beam 122 and sixth connecting beam 123.

[0041] As Figure 4 and Figure 2 shown, a second mounting hole 222 penetrating the second clamping member 22 is formed in the second clamping member 22 along the first direction. The clamping assembly 2 further includes a second connecting shaft 24, and the second connecting shaft 24 passes through the second mounting hole 222. The second clamping member 22 is cooperatively mounted with the body 1 through the second connecting shaft 24.

[0042] As Figure 5 shown, the blank holder assembly 3 includes a blank holder 31. The blank holder 31 is located between the first clamping member 21 and the second clamping member 22. The blank holder 31 is formed by processing such as cutting and injection molding. The bottom of the blank holder 31 has a third contact portion 311. The blank holder 31 also has a bent portion 313 connected to the third contact portion 311 and a fixing portion 314 connected to the bent portion 313. The fixing portion 314 is located at the upper part of the blank holder 31. The bent portion 313 is located in the middle section of the blank holder 31.

[0043] As Figure 5 and Figure 2 shown, a third mounting hole 312 penetrating the blank holder 31 is formed in the blank holder 31 along a first direction. The blank holder assembly 3 further includes a third connecting shaft 32, and the third connecting shaft 32 passes through the third mounting hole 312. The blank holder 31 is cooperatively mounted with the body 1 through the third connecting shaft 32.

[0044] As Figure 6 and Figure 1 shown, in the initial state of clamping the scissor leg 100, the left bracket 110 is clamped in a horizontal state. The two first clamping portions 211 are respectively in contact with the outer side wall surfaces of the second connecting beam 112 and the third connecting beam 113, and at the same time, the bottoms of the two abutting portions 212 are respectively in contact with the corresponding upper surfaces of the second connecting beam 112 and the third connecting beam 113. When the thickness of the scissor leg 100 is consistent, the bottom of the abutting portion 212 is higher than the bottom of the first clamping portion 211. In other embodiments, if the thickness of the scissor leg 100 is inconsistent, the height of the bottom of the abutting portion 212 and the height of the bottom of the first clamping portion 211 can also be adjusted. In one embodiment, the distance between the two abutting portions 212 can be less than the distance between the two first clamping portions 211.

[0045] In the initial state of clamping the scissor leg 100, when the right bracket 120 is clamped, a certain angle is formed between the right bracket 120 and the left bracket 110. The two second clamping portions 221 are respectively in contact with the outer side wall surfaces of the fifth connecting beam 122 and the sixth connecting beam 123 to achieve clamping.

[0046] Due to the setting of the bent portion 313, the third contact portion 311 can be close to the second clamping member 221. The bottom of the third contact portion 311 has an inclined surface 3111, and the inclined surface 3111 faces the second clamping member 22. The inclined surface 3111 can be in contact with the upper surface of the fourth connecting beam 121.

[0047] The third contact portion 311 may be partially located between the two second clamping portions 221. The distance between the inclined surface 3111 and the outer side wall of the second clamping member 22 gradually increases in the direction approaching the bottom of the third contact portion 311. Since the inclined surface 3111 is still located between the first clamping member 21 and the second clamping member 22, in the initial state of clamping the scissor feet 100, the height of the lowest point of the inclined surface 3111 may be higher than the height of the bottom of the second clamping portion 221. In other embodiments, when the position of the inclined surface 3111 is different, the height of the lowest point of the inclined surface 3111 may also be lower than the height of the bottom of the second clamping portion 221.

[0048] In one embodiment, in the initial state of clamping the scissor feet 100, the height of the lowest point of the inclined surface 3111 and the height of the bottom of the second clamping portion 221 are both higher than the height of the bottom of the abutting portion 212.

[0049] As Figure 7 、 Figure 3 and Figure 4 shown, first slideways 11 and second slideways 12 are formed on opposite sides of the lower end portion of the body 1 by machining. A first sliding groove 214 that fits with the first slideway 11 is formed on the first clamping member 21. A second sliding groove 223 that fits with the second slideway 12 is formed on the second clamping member 22. The first slideways 11 and the second slideways 12 are both arranged along the second direction, and the second direction is the y-axis direction. The first clamping member 21 and the second clamping member 22 are wrapped around the lower end portion of the body 1, and the first clamping member 21 and the second clamping member 22 form an embedded fit with the body 1. Through the cooperation of the first slideway 11 and the first sliding groove 214 and the cooperation of the second slideway 12 and the second sliding groove 223, both the first clamping member 21 and the second clamping member 22 can reciprocate along the second direction. The specific shapes of the first slideways 11 and the second slideways 12, the first sliding grooves 214 and the second sliding grooves 223 are various and are not specifically limited herein. All slideways and sliding grooves that can satisfy the reciprocating movement of the first clamping member 21 and the second clamping member 22 in the second direction are within the protection scope. A limiting guiding groove and a limiting guiding block may be provided between the first slideway 11 and the first sliding groove 214 and between the second slideway 12 and the second sliding groove 223, so that the first clamping member 21 and the second clamping member 22 can only slide in the second direction and will not move away from the body 1 in other directions.

[0050] As Figure 7 shown, a receiving cavity 13 penetrating the bottom of the body 1 is formed inside the lower end portion of the body 1. The receiving cavity 13 is used to receive the pressing member 31, and the pressing member 31 can reciprocate along the second direction within the receiving cavity 13. In one embodiment, the receiving cavity 13 may penetrate the second slideway 12. The lower end portion of the pressing member 31 may be attached to the inner side wall of the second clamping member 22.

[0051] As Figure 7 、Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in Figure 5 , a first strip-shaped hole 14, a second strip-shaped hole 15, and a third strip-shaped hole 16 penetrating through the lower end portion of the main body 1 are further provided on the lower end portion of the main body 1. The first strip-shaped hole 14, the second strip-shaped hole 15, and the third strip-shaped hole 16 all penetrate through the lower end portion of the main body 1 along the first direction. The first strip-shaped hole 14 is perpendicular to and communicated with the first mounting hole 213, and both ends of the first connecting shaft 23 extend into the first strip-shaped hole 14 at the same time. The second strip-shaped hole 15 is perpendicular to and communicated with the second mounting hole 222, and both ends of the second connecting shaft 24 extend into the second strip-shaped hole 15 at the same time. The third strip-shaped hole 16 is perpendicular to and communicated with the third mounting hole 312, and both ends of the third connecting shaft 32 extend into the second strip-shaped hole 15 at the same time.

[0052] The first clamping member 21 and the first connecting shaft 23, the second clamping member 22 and the second connecting shaft 24, and the pressing member 31 and the third connecting shaft 32 can reciprocate along the corresponding first strip-shaped hole 14, second strip-shaped hole 15, and third strip-shaped hole 16 respectively. The lengths of the first strip-shaped hole 14, the second strip-shaped hole 15, and the third strip-shaped hole 16 in the second direction determine the magnitudes of the moving strokes of the first clamping member 21, the second clamping member 22, and the pressing member 31 in the second direction. Of course, the lengths of the first sliding groove 11, the second sliding groove 12, and the accommodating cavity 13 can also determine the magnitudes of the moving strokes of the first clamping member 21, the second clamping member 22, and the pressing member 31 in the second direction.

[0053] As Figure 8 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a first channel 17, a second channel 18, and a third channel 19 are formed in the main body 1. The first channel 17, the second channel 18, and the third channel 19 are all provided along the second direction. The first channel 17 is communicated with the first mounting hole 213. The second channel 18 is communicated with the second mounting hole 222. The third channel 19 is communicated with the third mounting hole 312.

[0054] As Figure 9 , Figure 8 , Figure 7 and Figure 2As shown, the scissor leg assembly device further includes an elastic component 4. In one embodiment, three groups of elastic components 4 are provided and are respectively installed in the first channel 17, the second channel 18, and the third channel 19. The elastic component 4 includes a contact shaft 401 and an elastic member 402 that contacts the contact shaft 401. The contact shafts 401 of each group of elastic components 4 respectively contact the corresponding first connecting shaft 23, second connecting shaft 24, and third connecting shaft 32. Each contact shaft 401 is perpendicular to the corresponding first connecting shaft 23, second connecting shaft 24, and third connecting shaft 32. Each elastic member 402 can generate an elastic force in the contracted state, and the self-elastic force of each elastic member 402 can act on the corresponding first connecting shaft 23, second connecting shaft 24, and third connecting shaft 32 through the corresponding contact shaft 401, so as to provide a buffering force for the first connecting shaft 23, second connecting shaft 24, and third connecting shaft 32, and further provide a buffering force for the clamping component 2 and the pressing member 31. In one embodiment, the elastic component 4 further includes a plug 403. Three plugs 403 are provided and are respectively used to block the first channel 17, the second channel 18, and the third channel 19 at the top of the body 1.

[0055] The working principle in one embodiment:

[0056] Start to clamp the scissor leg 100: Through the cooperation of an external device, the left bracket 110 is inserted between the two first clamping portions 211, so that the opposite side surfaces between the two first clamping portions 211 are in interference fit with the outer side wall surfaces of the second connecting beam 112 and the third connecting beam 113. At the same time, the two contact portions 212 respectively contact the upper surfaces of the second connecting beam 112 and the third connecting beam 113, so as to realize the clamping of the left bracket 110. At the same time, the right bracket 120 is inserted between the two second clamping portions 221, so that the opposite side surfaces between the two second clamping portions 221 are in interference fit with the outer side wall surfaces of the fifth connecting beam 122 and the sixth connecting beam 123, and the inclined surface 3111 contacts the upper surface of the fourth connecting beam 121, realizing the clamping of the right bracket 120. So far, the scissor leg 100 has been clamped. As Figure 6 shown, in the initial state of clamping the scissor leg 100, the first connecting shaft 23, the second connecting shaft 24, and the third connecting shaft 32 are respectively located at the lowermost ends of the first strip-shaped hole 14, the second strip-shaped hole 15, and the third strip-shaped hole 16. At this time, the left bracket 110 is in a horizontal state, and the included angle between the right bracket 120 and the left bracket 110 is an obtuse angle.

[0057] As Figure 10As shown, the scissor leg 100 is assembled: the body 1 drives the clamping assembly 2 and the pressing assembly 3 to move downward. At first, the first clamping member 21 drives the left bracket 110 to move downward and first contact the keyboard. The first clamping member 21 cooperates with the corresponding elastic assembly 4 that can play a buffering role to achieve the first engagement of the left bracket 110 with the keyboard. The first clamping member 21 continues to move upward, and then the second clamping member 22 and the pressing member 31 drive the right bracket 120 to move downward and contact the keyboard. Since the left bracket 110 and the right bracket 120 are hinged, the downward movement of the right bracket 120 will produce rotation. The angle between the right bracket 120 and the left bracket 110 is further enlarged, so that the inclined surface 3111 contacts the upper surface of the fourth connecting beam 121 from the beginning, and gradually moves to the connecting edge of the upper surface and the inner wall of the fourth connecting beam 121 as the third contact portion 311 moves downward, that is, it changes from surface contact to line contact. When the inclined surface 3111 contacts the connecting edge, as the inclined surface 3111 moves downward, a driving force is generated on the fourth connecting beam 121, and the direction of the driving force includes downward and toward the side away from the left bracket 110. Under the driving force, the right bracket 120 is finally ensured to be engaged with the keyboard. At this point, the scissor foot 100 and the keyboard are assembled.

[0058] Embodiment 2:

[0059] like Figure 11 As shown, the second clamping member 22 is located between the first clamping member 21 and the pressing member 31. The second clamping member 22 and the pressing member 31 are arranged opposite to each other and cover the lower end of the body 1. The pressing member 31 is located in the accommodating cavity 13 of the body 1 so as to be able to move back and forth. The first clamping member 21 and the pressing member 31 are also installed in cooperation with the lower end of the body 1 through the slideway and the slide groove to limit the reciprocating movement.

[0060] like Figure 12 As shown, the first clamping member 21 has a first clamping portion 41 at its bottom. The first clamping portion 41 has a first contact portion 411 abutting against the inner wall of the scissor leg 100 , and the outer wall of the first contact portion 411 abuts against the inner wall of the first connecting beam 111 .

[0061] like Figure 13 As shown, the second clamping member 22 has a second clamping portion 42 at the bottom. The second clamping portion 42 has a second contact portion 421 that can abut against the inner wall of the scissor leg 100, and the outer wall of the second contact portion 421 abuts against the connecting edge of the inner wall and the upper surface of the fourth connecting beam 121 to form a line contact.

[0062] Since the inner side wall surfaces of the first connecting beam 111 and the fourth connecting beam 121 are arranged oppositely, in order to better clamp the scissors feet 100, the first contact portion 411 and the second contact portion 421 are also arranged oppositely. The scissors feet 100 are sleeved on the first contact portion 411 and the second contact portion 421. The distance between the outer side wall surface of the first contact portion 411 and the outer side wall surface of the second contact portion 421 is greater than the distance between the inner side wall surface of the first connecting beam 111 and the inner side wall surface of the fourth connecting beam 121, and / or the length of the outer side wall surface of the first contact portion 411 is greater than the length of the inner side wall surface of the first connecting beam 111 and the length of the outer side wall surface of the second contact portion 421 is greater than the length of the inner side wall surface of the fourth connecting beam 121, so that the first contact portion 411 and the second contact portion 421 are in interference fit with the scissors feet 100.

[0063] As Figure 12 and Figure 13 shown, the first contact portion 411 has three and is connected to form a groove. The outer side wall surfaces of the three first contact portions 411 are respectively in contact with the inner side wall surfaces of the first connecting beam 111, the second connecting beam 112 and the third connecting beam 113. The second contact portion 421 has three and is connected to form a groove. The outer side wall surfaces of the three second contact portions 421 are respectively in contact with the inner side wall surfaces of the fourth connecting beam 121, the fifth connecting beam 122 and the sixth connecting beam 123.

[0064] In other embodiments, the first contact portion 411 and the second contact portion 421 can also be set to other quantities.

[0065] As Figure 12 shown, two abutting portions 412 are also provided. The two abutting portions 412 are respectively located outside the two first contact portions 411 that are in contact with the inner side wall surfaces of the second connecting beam 112 and the third connecting beam 113. The two abutting portions 412 can also be respectively connected to the corresponding first contact portions 411. The two abutting portions 412 can respectively be in contact with the upper surfaces of the second connecting beam 112 and the third connecting beam 113.

[0066] As Figure 14 and Figure 15 shown, the bottom of the pressing member 31 has a third contact portion 51. The bottom of the third contact portion 51 has an inclined surface 511 and a vertical surface 512, and the inclined surface 511 and the vertical surface 512 are arranged oppositely. The vertical surface 512 is close to the second clamping portion 42, and the inclined surface 511 is far from the second clamping portion 42. The vertical surface 512 can be in contact with the nearest second contact portion 421.

[0067] As Figure 15 , Figure 14 , Figure 13 , Figure 12 , Figure 11 andFigure 1 As shown, in the initial state of clamping the scissor leg 100, the angle between the left bracket 110 and the right bracket 120 is an obtuse angle. The second clamping portion 42 is located between the first clamping portion 41 and the third contact portion 51. At this time, the outer wall surfaces of the three first contact portions 411 respectively correspond to the inner wall surfaces of the first connecting beam 111, the second connecting beam 112 and the third connecting beam 113. The outer wall surfaces of the three second contact portions 421 respectively correspond to the inner wall surfaces of the fourth connecting beam 121, the fifth connecting beam 122 and the sixth connecting beam 123, wherein the connecting edge formed by connecting the inner wall surface and the upper surface of the fourth connecting beam 121 abuts against the outer wall surface of the corresponding second contact portion 421. At the same time, the inclined surface 511 contacts the upper surface of the fourth connecting beam 121.

[0068] In the initial state of clamping the scissor leg 100 , the lowest point of the inclined surface 511 is higher than the bottom of the second contact portion 421 . The bottom of the second contact portion 421 may be higher than the bottom of the abutting portion 412 .

[0069] Working principle:

[0070] Start clamping the scissor legs 100: through the cooperation of external equipment, the left bracket 110 is horizontally sleeved on the first clamping part 41, so that the outer wall surface of the first contact part 411 abuts against the inner wall surfaces of the left bracket 110 to form an interference fit, and the two abutting parts 412 abut against the upper surfaces of the second connecting beam 112 and the third connecting beam 113 respectively, thereby clamping the left bracket 110. At the same time, the right bracket 120 is sleeved on the first clamping part 41, so that the outer wall surfaces of the two oppositely arranged second contact parts 421 abut against the two outer wall surfaces of the fifth connecting beam 122 and the sixth connecting beam 123 to form an interference fit, and the other second contact part 421 abuts against the connecting edge formed by connecting the inner wall surface and the upper surface of the fourth connecting beam 121 to form an interference fit, and the inclined surface 511 abuts against the upper surface of the fourth connecting beam 121 to clamp the right bracket 120. Figure 15 As shown, at this point, the scissor legs 100 have been clamped.

[0071] The scissor legs 100 are assembled: the body 1 drives the clamping assembly 2 and the pressing assembly 3 to move downward. Initially, the first clamping member 21 drives the left bracket 110 to move downward and first contact the keyboard, so that the left bracket 110 and the keyboard are first engaged. The first clamping member 21 continues to move upward, and then the second clamping member 22 and the pressing member 31 drive the right bracket 120 to move downward and contact the keyboard. Since the left bracket 110 and the right bracket 120 are hinged, the right bracket 120 will rotate when it moves downward. The angle between the right bracket 120 and the left bracket 110 is further increased, so that a gap is formed between the second clamping portion 42 and the fourth connecting beam 121. As the third contact portion 51 moves downward, the third contact portion 51 can extend into the gap, so that the inclined surface 511 gradually moves from contacting the upper surface of the fourth connecting beam 121 at the beginning to contacting the connecting edge of the upper surface and the inner wall of the fourth connecting beam 121, that is, from surface contact to line contact. When the inclined surface 511 contacts the connecting edge, as the inclined surface 511 moves downward, a driving force is generated on the fourth connecting beam 121, and the direction of the driving force includes downward and toward the side away from the left bracket 110. Under the driving force, the right bracket 120 is finally ensured to be engaged with the keyboard. At this point, the scissor foot 100 and the keyboard are assembled.

[0072] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and pass through various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A scissor foot assembly device, wherein the scissor foot has a left bracket and a right bracket that are hinged to each other. Characterized in that, Comprising: A body; A clamping assembly, slidably mounted on the body, the clamping assembly can abut against the side wall surface of the scissor foot and realize the clamping of the scissor foot through interference fit. The clamping assembly includes a first clamping member and a second clamping member. The first clamping member has a first clamping portion that abuts against the side wall surface of one of the left bracket and the right bracket of the scissor foot. The second clamping member has a second clamping portion that abuts against the side wall surface of the other of the left bracket and the right bracket of the scissor foot. The first clamping portion has at least one first contact portion that abuts against the inner wall surface of one of the left bracket and the right bracket of the scissor foot. The second clamping portion has at least one second contact portion that abuts against the inner wall surface of the other of the left bracket and the right bracket of the scissor foot. At least one of the first contact portions is disposed opposite to one of the second contact portions; And A material pressing assembly, slidably mounted on the body, the material pressing assembly can abut against the surface of the left bracket or the right bracket of the scissor foot and realize the assembly of the scissor foot and the keyboard by pushing the left bracket or the right bracket of the scissor foot. The material pressing assembly includes a material pressing member, and the material pressing member has a third contact portion that abuts against the surface of the left bracket or the right bracket of the scissor foot; During the assembly of the scissor foot and the keyboard, the movement of the body drives the movement of the clamping assembly and the material pressing assembly. Initially, the first clamping member moves and drives one of the left bracket and the right bracket of the scissor foot to move and engage with the keyboard. Then, the second clamping member and the material pressing member drive the other of the left bracket and the right bracket of the scissor foot to move and further increase the angle between the left bracket and the right bracket. The material pressing member drives the third contact portion to continue to move, thereby generating a driving force on the other of the left bracket and the right bracket of the scissor foot. Under the action of the driving force, the other of the left bracket and the right bracket of the scissor foot is engaged with the keyboard.

2. The scissor foot assembly device according to claim 1, Characterized in that, The third contact portion has an inclined surface that can abut against the surface of the left bracket or the right bracket of the scissor foot. During the assembly process, the third contact portion moves so that the inclined surface changes from surface contact with the left bracket or the right bracket of the scissor foot to line contact with the left bracket or the right bracket of the scissor foot, thereby pushing the left bracket or the right bracket of the scissor foot.

3. The scissor foot assembly device according to claim 1, Characterized in that, The bottom of the first clamping member or the second clamping member further has an abutting portion that can abut against the surface of the left bracket or the right bracket of the scissor foot.

4. The scissor foot assembly device according to claim 1, Characterized in that, The body is provided with a first strip-shaped hole and a second strip-shaped hole. The clamping assembly further includes a first connecting shaft that passes through the first strip-shaped hole and the first clamping member at the same time, and a second connecting shaft that passes through the second strip-shaped hole and the second clamping member at the same time. The first clamping member can reciprocate along the first strip-shaped hole in cooperation with the first connecting shaft, and the second clamping member can reciprocate along the second strip-shaped hole in cooperation with the second connecting shaft.

5. The scissor leg assembly device according to claim 1, characterized in that the body is provided with a third strip-shaped hole, and the pressing component further includes a third connecting shaft that passes through the third strip-shaped hole and the pressing member at the same time. The pressing member can reciprocate along the third strip-shaped hole in cooperation with the third connecting shaft.

6. The scissor leg assembly device according to claim 1, characterized in that the scissor leg assembly device further includes an elastic component, and the elastic component is cooperatively installed with the body, the clamping assembly and the pressing component for providing a buffering force for the clamping assembly and the pressing component.

7. The scissor leg assembly device according to claim 6, characterized in that the elastic component includes an abutting shaft and an elastic member that abuts against the abutting shaft. The elastic member provides a buffering force for the clamping assembly and the pressing component by virtue of its own elasticity in cooperation with the abutting shaft.

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