A type of hole sleeve and glass workpiece

Abstract

This invention discloses a perforated sleeve that passes through a through-hole in laminated glass. The laminated glass contains an intermediate film layer. The perforated sleeve includes a male component, a female component, and a cutting component. The male component has a first boss and a second boss arranged sequentially along the axial direction. The female component is coaxially arranged with the male component, and the second boss of the male component matches the female component and can be embedded within the female component. The cutting component is sleeved outside the first boss or the female component, and the end of the cutting component extending towards the through-hole has serrations capable of cutting the intermediate film layer. Correspondingly, this invention also discloses a glass workpiece, which includes a glass assembly and the perforated sleeve described above. The glass assembly includes laminated glass with a through-hole and an intermediate film layer. The perforated sleeve passes through the through-hole of the laminated glass.

Description

Technical Field

[0001] This invention belongs to the field of mechanical tooling technology, and particularly relates to a hole sleeve and a glass workpiece. Background Technology

[0002] Most existing laminated glass drilling processes involve drilling and heating the inner and outer glass sheets separately during the glass pretreatment stage, then joining the two sheets together and bonding an interlayer film between them. Since the interlayer film is a single piece without pre-processed holes in the glass, excess interlayer film within the through-hole locations in the laminated glass must be manually trimmed later to create through-holes that penetrate both the inner and outer glass sheets and the interlayer film.

[0003] However, the inventors discovered that when actually manufacturing laminated glass with through holes using the above process, the following problems often occur:

[0004] (1) The inner and outer glass of laminated glass are drilled separately before being joined together. After joining, the intermediate film layer needs to be cut at the through hole between the two glass pieces, which will increase production costs and affect production efficiency.

[0005] (2) After the inner and outer glass panes of the laminated glass are assembled, it is difficult to control the coaxiality of the hole center and the hole boundary cannot be fully aligned. When they are assembled with the through shaft later, it is easy to cause the single glass pane to be stressed, which will result in uneven stress on the inner and outer glass panes and increase the risk of glass cracking.

[0006] (3) Neither the inner nor outer glass of laminated glass can be threaded. When it is used in specific applications such as door glass screw connection, laminated glass with light holes cannot be directly assembled and applied.

[0007] (4) Laminated glass is also commonly used in automobiles. It is generally required to have a thin thickness (less than 6mm). Due to the thinness, the through-hole position of the laminated glass cannot be directly and accurately positioned when it is fitted with the shaft. Under the production conditions of glue injection, the inner and outer glass of the laminated glass cannot maintain the correct relative position before the adhesive is cured. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a hole sleeve that can be adapted to the through holes of laminated glass, so as to facilitate the precise pre-positioning of the inner and outer perforated glass pieces of laminated glass during lamination, so that the hole axes of the through holes of the inner and outer perforated glass pieces are coaxially corresponding, and at the same time, the intermediate film layer at the through hole position of the inner and outer perforated glass pieces of laminated glass can be easily cut off.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a hole sleeve, wherein the hole sleeve is provided through a through hole in laminated glass, and the laminated glass has an intermediate film layer, characterized in that the hole sleeve includes a male part, a female part, and a cutting part; the male part has a first boss and a second boss arranged sequentially along the axial direction, the female part is coaxially arranged with the male part, and the second boss of the male part matches the female part and can be embedded in the female part;

[0010] The cutting member is sleeved on the first boss or the mother member, and the end of the cutting member extending toward the side where the through hole is located has serrations capable of cutting the intermediate film layer.

[0011] Furthermore, in the bushing described in this invention, the outer diameter of the second boss is smaller than the outer diameter of the first boss;

[0012] The female part includes a third boss, which is sleeved on the second boss and is coaxially arranged with the first boss.

[0013] The cutting element is fitted onto the first or third protrusion, and the outer diameter of the cutting element is smaller than the diameter of the through hole in the laminated glass.

[0014] In current technologies, the fabrication of laminated glass typically involves drilling holes in both the inner and outer glass panes during the glass pretreatment stage, followed by lamination of the two panes with an interlayer bonded between them. Since the interlayer is a single piece, excess interlayer material at the through-hole locations must be manually trimmed later to create through-holes penetrating both the inner and outer glass panes and the interlayer. This method is time-consuming and labor-intensive. Furthermore, during lamination, controlling the coaxiality of the through-holes in the inner and outer glass panes is difficult, and the hole boundaries cannot be perfectly aligned, easily causing problems for subsequent applications.

[0015] Therefore, in this invention, the inventors designed a hole sleeve for laminated glass. This sleeve facilitates the coaxiality of the two drilled glass panes during lamination by using male and female parts that match the through holes of the inner and outer panes. Unlike manual alignment, in practical application, the male and female parts of the sleeve can be inserted through the through holes of the inner and outer panes of the laminated glass, respectively, and then matched accordingly. At this time, the first and second protrusions of the male part can pass through the through holes of the drilled glass, while the third protrusion of the female part can effectively pass through the through hole of the other drilled glass and be fitted onto the second protrusion of the male part. By controlling the outer diameter of the third and first protrusions, the operator can achieve coaxiality between the first and third protrusions, thereby limiting the axial movement of the inner and outer drilled glass panes and controlling their coaxiality. This greatly simplifies the operation for the operator.

[0016] Accordingly, considering the current difficulty for operators to remove the interlayer film at the through-hole positions of the two perforated glass pieces, requiring an additional cutting process, which is inconvenient for production, the inventors have also provided a cutting component on the first boss or the third boss of the female component. The outer diameter of the cutting component is smaller than the diameter of the through-holes in the inner and outer perforated glass pieces, and the end of the cutting component extending towards the through-hole of the laminated glass has serrations capable of cutting the interlayer film. When the male and female components are assembled corresponding to the inner and outer perforated glass pieces, this cutting component can directly cut off the interlayer film at the through-hole positions of the inner and outer perforated glass pieces, effectively improving production efficiency and saving production costs. It has good prospects for promotion and application value.

[0017] It should be noted that, in order to ensure that the male and female parts of the sleeve can effectively fit the through holes on the inner and outer perforated glass sheets of the laminated glass, the inventors need to strictly control the outer diameters of the first, second, and third protrusions during actual installation. This ensures that the first and third protrusions are coaxially aligned, and that the outer diameter of the cutting piece is smaller than the diameter of the through hole in the laminated glass when it is fitted onto the first or third protrusion. Furthermore, the reason for controlling the coaxial alignment of the male and female parts and ensuring the coaxial alignment of the first and third protrusions in this invention is also to ensure that the hole axes of the through holes on the inner and outer perforated glass sheets of the laminated glass are coaxial.

[0018] In practical applications, the hole sleeve designed in this invention allows for the efficient trimming of excess intermediate film at corresponding hole positions after assembling the inner and outer perforated glass sheets of laminated glass. Simultaneously, the hole sleeve increases the stress-bearing area between the axial holes, absorbing coaxiality deviations in the through-hole positions of the inner and outer perforated glass sheets after lamination, reducing the risk of glass cracking due to uneven stress. Furthermore, the hole sleeve employs a split design, with complementary and intersecting male and female components, ensuring pre-positioning before adhesive curing after assembly.

[0019] Furthermore, in the hole sleeve described in this invention, the cutting member is sleeved on the first boss, and the inner diameter of the cutting member is the same as the outer diameter of the third boss.

[0020] Furthermore, in the hole sleeve described in this invention, the cutting member is sleeved on the third boss, and the inner diameter of the cutting member is the same as the outer diameter of the first boss.

[0021] In the above technical solution of the present invention, the cutting element can be provided on the male or female part according to specific usage requirements. When the cutting element is provided on the male part, the cutting element can be specifically fitted on the first boss so that the cutting element can enter the through hole of the drilled glass together with the first boss. It can effectively use its own saw teeth to cut the intermediate film layer at the through hole position between the inner and outer drilled glass of the laminated glass.

[0022] Correspondingly, in some other preferred embodiments, depending on actual usage needs, the operator may also specifically mount the above-mentioned cutting piece onto the third protrusion of the mother piece. In this case, the cutting piece can enter the through hole of the drilled glass along with the third protrusion, and can use the saw teeth of the cutting piece to cut the intermediate film layer at the through hole position between the two pieces of drilled glass of the laminated glass.

[0023] Furthermore, in the hole sleeve described in this invention, the male component also includes a first cap, and the first cap, the first boss, and the second boss are connected in sequence;

[0024] The mother component also includes a second cap, which is connected to the third boss.

[0025] The maximum cross-sectional area of ​​both the first cap and the second cap is greater than the area of ​​the through hole.

[0026] In this invention, to achieve mutual positioning between the male component, the female component, and the laminated glass, the maximum cross-sectional area of ​​the first cap on the male component and the second cap on the female component must both be larger than the area of ​​the circular hole in the through-hole of the laminated glass. Based on this configuration, when the first protrusion of the male component is inserted into the inner and outer perforated glass panes of the laminated glass, the first cap will gradually move closer to the perforated glass until it adheres to the perforated glass. At this point, the first cap will prevent the male component from moving further towards the perforated glass.

[0027] Correspondingly, when the third boss of the mother part is inserted into the inner and outer pieces of the laminated glass and is fitted onto the second boss of the male part, the second cap will gradually move closer to the drilled glass until the second cap is attached to the other piece of drilled glass. At this time, the second cap will prevent the mother part from moving further toward the drilled glass.

[0028] Furthermore, in the hole sleeve described in this invention, both the first cap and the second cap have through cavities. The first boss and the second boss are both annular bosses. The through cavity of the first cap communicates with the hollow cavities of the first boss and the second boss, and the through cavity of the second cap communicates with the hollow cavity of the third boss.

[0029] Furthermore, in the hole sleeve described in this invention, the inner diameters of the first boss, the second boss, and the third boss are the same as the diameter of the through cavity.

[0030] Furthermore, the hole sleeve of the present invention also includes a nut, which is disposed in the male component and passes sequentially through the through cavity of the first cap, the hollow cavity of the first boss and the hollow cavity of the second boss.

[0031] Furthermore, in the bushing described in this invention, the outer diameter of the nut is the same as the diameter of the through cavity.

[0032] In the above-described technical solution of this invention, a nut can be pre-embedded inside the male component of the designed hole sleeve. This nut can sequentially pass through the through-cavity of the first cap, the hollow cavities of the first boss and the second boss. The pre-embedded nut inside the male component facilitates the subsequent threaded connection between the laminated glass and the external assembly after the male component is assembled with the laminated glass. To ensure a secure assembly, the outer diameter of the nut can be the same as the through-cavity of the first cap, preventing the nut from easily detaching from the male component.

[0033] Of course, in practical applications, in some preferred embodiments, the nut can also be replaced with a smooth hole bushing. Replacing the nut with a smooth hole bushing can also achieve smooth rod shaft hole assembly, which can be effectively applied to a variety of application scenarios.

[0034] Furthermore, in the hole sleeve described in this invention, the first cap and / or the second cap are also provided with an annular groove, the annular groove corresponding to a portion of the end of the cutting piece with the serrations, and the width of the annular groove is smaller than the thickness of the cutting piece.

[0035] In the above-described technical solution of the present invention, in practical applications, the cutting component is usually selected as a metal cutting component. The end of the metal cutting component away from the first or second cap is also machined with serrations. During assembly, a portion of the serrated end of the metal cutting component can be correspondingly accommodated in the annular groove provided on the first and / or second caps. For example, the cutting component designed in this invention can specifically be a metal annular serrated ring. When the cutting component designed in this invention is fitted onto the first boss of the male component, when the hole sleeve needs to be assembled, the cutting component can generate a shearing force with the annular groove on the second cap of the female component, thereby cutting the intermediate film layer. After assembly, a portion of the serrated end of the cutting component is located in the annular groove of the second cap, and friction is formed between the cutting component and the annular groove to provide axial pre-tightening.

[0036] Furthermore, in the hole sleeve described in this invention, the first cap and the second cap are provided with a glue storage cavity on the side near the through hole of the laminated glass.

[0037] In the above-mentioned technical solution of the present invention, a glue storage cavity can also be provided on the side of the first cap of the male part and the second cap of the female part near the through hole of the laminated glass. Based on this arrangement, after the hole sleeve designed in the present invention is assembled with the laminated glass, the edges of the first cap and the second cap can fit against the glass surface of the laminated glass. At this time, the glue storage cavity stores adhesive, which can prevent the adhesive from overflowing before curing, and at the same time disperse the stress state between the laminated glass and the external assembly, thereby avoiding the problem of glass cracking due to uneven stress.

[0038] Accordingly, another objective of the present invention is to disclose a glass workpiece that also possesses the advantages and superior effects of the aforementioned perforated sleeve. Specifically, the glass workpiece includes a glass assembly and the perforated sleeve described above, wherein the glass assembly includes laminated glass, the laminated glass has a through hole, the laminated glass has an intermediate film layer, and the perforated sleeve is disposed through the through hole of the laminated glass.

[0039] The beneficial effects of this invention are as follows: by reasonably optimizing the structure of the hole sleeve, in practical applications, the male and female parts that cooperate with each other can pass through the through holes of the inner and outer perforated glass of the laminated glass respectively. At this time, the operator can easily and simply achieve the coaxial setting of the male and female parts, thereby using the matching cooperation of the male and female parts to achieve the coaxiality of the hole axis of the inner and outer perforated glass when the two pieces of perforated glass are joined together, and to axially limit the inner and outer perforated glass.

[0040] Accordingly, the present invention also includes a cutting component, which can be fitted onto the first boss of the male component or the third boss of the female component. The outer diameter of the cutting component is smaller than the diameter of the through holes of the inner and outer perforated glass pieces. The cutting component is provided with serrations. When the male and female components are assembled with the inner and outer perforated glass pieces respectively, the cutting component can be used to directly cut off the intermediate film layer at the through hole position of the inner and outer perforated glass pieces. This can effectively improve production efficiency and save production costs, and has good prospects for promotion and application value.

[0041] In addition, in some preferred embodiments, a nut may be pre-embedded in the male part of the sleeve. The nut can effectively penetrate the first cap, the first boss and the second boss of the male part. With the nut, the laminated glass can be directly threaded and assembled with the external assembly in the later stage.

[0042] In other preferred embodiments, the first and second caps can be made of soft material, and a glue storage cavity is formed between the first and second caps and the outer wall of the cut piece. After the male and female parts are assembled with the inner and outer perforated glass sheets of the laminated glass, the edges of the first and second caps can respectively adhere to the surfaces of the inner and outer perforated glass sheets. The glue storage cavity stores adhesive to prevent the adhesive from overflowing before curing. At the same time, during the subsequent assembly of the laminated glass with the external assembly, it can effectively disperse the stress state between the laminated glass and the external assembly, reducing the risk of cracking of the laminated glass due to uneven stress. Attached Figure Description

[0043] Figure 1 This is an exploded view of the hole sleeve according to one embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the hole sleeve described in the present invention being assembled on laminated glass in one embodiment.

[0045] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the hole fitting on laminated glass.

[0046] Figure 4 This is a schematic diagram of the structural assembly of the hole sleeve according to one embodiment of the present invention;

[0047] Figure 5 This is a schematic diagram of the structure of the empty sleeve according to one embodiment of the present invention;

[0048] Figure 6 This is a schematic diagram of the structure of the female part of the hole sleeve according to one embodiment of the present invention;

[0049] Figure 7This is a schematic diagram of the installation of the hole sleeve according to one embodiment of the present invention.

[0050] Label Explanation:

[0051] 1. Component; 11. First cap; 12. First boss; 13. Second boss;

[0052] 2. Female component; 21. Second cap; 22. Third boss;

[0053] 3. Cut parts;

[0054] 4. Nuts;

[0055] 5. Drilled glass;

[0056] 6. Intermediate film layer;

[0057] 7. Annular groove. Detailed Implementation

[0058] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0059] Please refer to Figures 1 to 7 As shown, the present invention designs a glass workpiece, which includes a glass assembly and a sleeve. The glass assembly includes laminated glass, and the sleeve is disposed through a through hole in the laminated glass. The laminated glass has an intermediate film layer 6. The sleeve includes a male part 1, a female part 2 that matches the male part 1, and a cutting part 3. The male part 1 includes a first boss 12 and a second boss 13 connected in sequence, and the outer diameter of the second boss 13 is smaller than the outer diameter of the first boss 12. The female part 2 includes a third boss 22, which is sleeved on the second boss 1. 3. The first boss 12 and the third boss 22 are coaxially arranged; wherein, the cutting member 3 can be sleeved on the first boss 12 or the third boss 22, and the outer diameter of the cutting member 3 is smaller than the diameter of the through hole of the laminated glass. The end of the cutting member 3 extending toward the through hole of the laminated glass has serrations that can cut the intermediate film layer 6 at the through hole position of the inner and outer drilled glass 5 of the laminated glass, so that the cutting member 3 passes through the through hole and cuts the intermediate film layer at the through hole position of the inner and outer drilled glass 5 of the laminated glass.

[0060] See Figure 1 It can be seen that, in the demolding fixture designed in this invention, unlike the prior art which uses manual assembly to assemble two pieces of drilled glass 5 and prepare laminated glass, the inventors ensure that the inner and outer pieces of drilled glass 5 are coaxial when assembling by setting male part 1 and female part 2 that match the through holes of the inner and outer pieces of drilled glass 5 of the laminated glass.

[0061] In practical applications, the male part 1 and female part 2 of the hole sleeve can be inserted through the through holes of the inner and outer perforated glass 5 of the laminated glass, and then the male part 1 and female part 2 can be matched accordingly. At this time, the first boss 12 and the second boss 13 of the male part 1 can pass through the through hole of the perforated glass 5, while the first cap 11 is blocked by the perforated glass 5 and cannot pass through the through hole. Meanwhile, the third boss 22 of the female part 2 can effectively pass through the through hole of the other perforated glass 5 and be sleeved on the second boss 13 of the male part 1.

[0062] In this invention, the first boss 12 and the third boss 22 are coaxially arranged, thereby achieving axial positioning of the inner and outer perforated glass pieces 5 of the laminated glass, thus controlling their coaxiality and greatly simplifying the operation for the operator. Figures 1-7 In this embodiment, the first boss 12, the second boss 13 and the third boss 22 are all made of hard material.

[0063] Accordingly, see Figure 1 , Figure 3 and Figure 5 As can be seen, in the hole sleeve described in this invention, the cutting element 3 is sleeved on the first boss 12, and the inner diameter of the cutting element 3 is the same as the outer diameter of the third boss 22. Meanwhile, the outer diameter of the cutting element 3 is smaller than the diameter of the through hole in the laminated glass (e.g., ...). Figure 3 (As shown).

[0064] In such Figure 1 and Figure 5 In this embodiment, when the cutting element 3 is set on the male part 1, the cutting element 3 can be sleeved on the first boss 12 so that the cutting element 3 can enter the through hole of the drilled glass 5 together with the first boss 12. At this time, the cutting element 3 can effectively use its own saw teeth to cut the intermediate film layer 6 at the through hole position between the two pieces of drilled glass 5.

[0065] Of course, in some other implementations, depending on the actual usage requirements, the operator can also specifically fit the above-mentioned cutting piece 3 onto the third protrusion 22 of the mother piece 2. At this time, the cutting piece 3 can enter the through hole of the drilled glass 5 along with the third protrusion 22, and it can also use its own serrations to cut the intermediate film layer 6 between the two drilled glass pieces 5 of the laminated glass.

[0066] It should be noted that, in order to ensure that the first boss 12 of the male part 1 and the third boss 22 of the female part 2 are coaxially arranged, in this embodiment, it is necessary to control the outer diameters of the first boss 12 and the third boss 22. That is, in this embodiment, when the cutting part 3 is provided on the first boss 12 of the male part 1, the outer diameter of the third boss 22 can be the same as the inner diameter of the cutting part 3. Similarly, in some other embodiments, when the cutting part 3 is provided on the third boss 22 of the female part 2, the outer diameter of the first boss 12 can be the same as the inner diameter of the cutting part 3.

[0067] Further reading Figure 1 , Figure 5 , Figure 6 and Figure 7 As can be seen, in this embodiment, the male component 1 is further provided with a first cap 11, and the female component 2 is further provided with a second cap 21. The first cap 11, the first boss 12, and the second boss 13 are connected in sequence, and the second cap 21 is connected to the third boss 22. Both the first cap 11 and the second cap 21 have through-holes, and the maximum cross-sectional area of ​​both the first cap 11 and the second cap 21 is larger than the area of ​​the circular hole in the laminated glass.

[0068] Accordingly, in this embodiment, the first boss 12 of the male part 1 and the second boss 13 of the female part 2 are both annular bosses, and both bosses also have hollow cavities. Furthermore, in Figure 7 As shown in the schematic diagram, the through cavity of the first cap 11 is connected to the hollow cavities of the first boss 12 and the second boss 13, while the through cavity of the second cap 21 is connected to the hollow cavity of the third boss 22.

[0069] It should be noted that, in this embodiment, the inner diameters (i.e., the diameters of the hollow cavities) of the first boss 12, the second boss 13, and the third boss 22 are further controlled to be the same as the diameters of the through-cavities opened on the first cap 11 and the second cap 21. Based on this configuration, a nut 4 is also embedded in the component 1 designed in this invention. The outer diameter of the nut 4 is the same as the diameter of the through-cavities of the first cap 11 and the second cap 21, and the nut 4 can pass through the through-cavity of the first cap 11 and the hollow cavities of the first boss 12 and the second boss 13 in sequence.

[0070] Therefore, in this invention, by pre-embedding a nut 4 inside the male component 1, a threaded connection between the laminated glass and the external assembly can be achieved after the male component 1 is assembled with the laminated glass. To ensure a secure assembly, the outer diameter of the nut 4 can be controlled to be the same as the diameter of the through-hole cavity of the first cap 11, ensuring that the nut 4 will not easily loosen from the male component 1. Of course, in practical applications, in some other preferred embodiments, the nut 4 can also be replaced with a light hole bushing. Replacing the nut 4 with a light hole bushing also allows for the assembly of the laminated glass with the light rod shaft hole, thus adapting to various application scenarios.

[0071] In addition, further reading Figure 6 As can be seen, in this embodiment, since the cutting element 3 is set on the first boss 12 of the male part 1, an annular groove 7 is also provided on the second cap 21 of the female part 2. The annular groove 7 can correspondingly accommodate a portion of the end of the cutting element 3 with serrations, and the width of the annular groove 7 is smaller than the thickness of the cutting element 3. Based on this setting, when the hole sleeve needs to be assembled, the cutting element 3 can generate a shearing force with the annular groove 7 on the second cap 21 of the female part 2, thereby cutting the intermediate film layer 6. After assembly, the portion of the end of the cutting element 3 with serrations is located in the annular groove 7 of the second cap 21, and the friction between the cutting element 3 and the annular groove 7 forms an axial pre-tightening effect.

[0072] In addition, in this embodiment, the first cap 11 of male component 1 and the second cap 21 of female component 2 are both made of soft material, and a glue storage cavity is provided on the side of the first cap 11 and the second cap 21 near the laminated glass. Based on this arrangement, after the hole sleeve designed in this invention is assembled with the laminated glass, the edges of the first cap 11 and the second cap 21 can fit against the glass surface of the laminated glass. At this time, the glue storage cavity stores adhesive, which can prevent the adhesive from overflowing before curing, and at the same time disperse the stress state between the laminated glass and the external assembly, thereby avoiding the problem of glass cracking due to uneven stress.

[0073] See also Figures 1-7 It should be noted that when applying the hole sleeve designed in this invention, the two drilled glass pieces 5 with the drilled holes can be fixed on the tooling first. Then, a male part 1 and a female part 2 can be taken out respectively. The first cap 11 of the male part 1 and the second cap 21 of the female part 2 are both made of soft material. Adhesive is evenly applied to the concave glue storage cavity of the soft material caps of the male part 1 and the female part 2 and the outer surface of the cut piece 3 in contact with the soft material caps.

[0074] Then, the glued male component 1 and female component 2 are inserted into the through holes of the inner and outer perforated glass 5 of the laminated glass. At this time, since the male component 1 and female component 2 have an axially intersecting complementary structure, the third boss 22 of the female component 2 can be effectively fitted onto the second boss 13 of the male component 1. During the relative movement, a shearing force is generated between the cutting part 3 fitted on the first boss 12 of the male component 1 and the outer surface of the third boss 22 on the female component 2, thereby cutting the intermediate film layer 6 of the inner and outer perforated glass 5 of the laminated glass.

[0075] Accordingly, during the later stage of the axial relative movement between male component 1 and female component 2, the aforementioned cutting piece 3 can be inserted into the annular groove 7 of female component 2. The width of the annular groove 7 is smaller than the thickness of the cutting piece 3, which generates frictional force to achieve axial pre-fixation. At the same time, the first cap 11 of male component 1 and the second cap 21 of female component 2 are in contact with the glass, and the friction generated here can achieve radial pre-fixation. In this case, after the first cap 11 of male component 1 and the second cap 21 of female component 2 are in contact with the glass, a closed space can be formed, and the adhesive is evenly filled in the adhesive storage cavity due to the compression effect without overflowing.

[0076] In addition, after male part 1 and female part 2 are installed in place, the operator can use a pin with a diameter smaller than the inner diameter of nut 4 to insert into the threaded hole of nut 4 from the side of male part 1. Since the intermediate film layer 6 has been cut, the cut intermediate film layer 6 can be completely ejected from the through cavity of female part 2 as the pin is inserted.

[0077] In summary, it can be seen that the use of this split-type perforated sleeve in this invention can effectively improve the stress state between the laminated glass 5 and the external assembly, reducing the risk of glass breakage. Simultaneously, the perforated sleeve is simple to assemble; the intermediate film layer 6 can be cut during assembly, simplifying the laminated glass production process and improving actual production efficiency. Furthermore, the perforated sleeve has a pre-embedded nut 4, which allows for direct threaded connection between the laminated glass and the external assembly. Replacing the nut 4 with a smooth perforated bushing also enables smooth shaft hole assembly, making it suitable for various application scenarios. Correspondingly, the glass workpiece designed with this perforated sleeve also possesses the aforementioned advantages and beneficial effects, which will not be elaborated further here.

[0078] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A perforated sleeve, wherein the perforated sleeve is disposed through a through-hole in laminated glass, the laminated glass having an intermediate film layer therein, characterized in that, The bushing includes a male part, a female part, and a cutting part; the male part has a first boss and a second boss arranged sequentially along the axial direction, the female part is coaxially arranged with the male part, and the second boss of the male part matches the female part and can be embedded in the female part; The cutting member is sleeved on the first boss or the mother member, and the end of the cutting member extending toward the side where the through hole is located has serrations that can cut the intermediate film layer. Both the first boss and the second boss are annular bosses, and the hollow cavities of the first boss and the second boss are connected. The outer diameter of the second boss is smaller than the outer diameter of the first boss. The male and female parts are inserted from the through holes of the two pieces of laminated glass.

2. The hole sleeve according to claim 1, characterized in that, The female part includes a third boss, which is sleeved on the second boss and is coaxially arranged with the first boss. The cutting element is fitted onto the first or third protrusion, and the outer diameter of the cutting element is smaller than the diameter of the through hole in the laminated glass.

3. The hole sleeve according to claim 2, characterized in that, The cutting element is fitted onto the first boss, and the inner diameter of the cutting element is the same as the outer diameter of the third boss.

4. The hole sleeve according to claim 2, characterized in that, The cutting element is fitted onto the third protrusion, and the inner diameter of the cutting element is the same as the outer diameter of the first protrusion.

5. The hole sleeve according to claim 2, characterized in that, The component also includes a first cap, and the first cap, the first boss and the second boss are connected in sequence. The mother component also includes a second cap, which is connected to the third boss. The maximum cross-sectional area of ​​both the first cap and the second cap is greater than the area of ​​the through hole.

6. The bushing according to claim 5, characterized in that, Both the first cap and the second cap have through cavities. The through cavity of the first cap communicates with the hollow cavities of the first boss and the second boss, and the through cavity of the second cap communicates with the hollow cavity of the third boss.

7. The bushing according to claim 6, characterized in that, The inner diameters of the first boss, the second boss, and the third boss are the same as the diameter of the through cavity.

8. The bushing according to claim 7, characterized in that, It also includes a nut, which is disposed in the male component and passes sequentially through the through cavity of the first cap, the hollow cavity of the first boss and the hollow cavity of the second boss.

9. The bushing according to claim 8, characterized in that, The outer diameter of the nut is the same as the diameter of the through cavity.

10. The bushing according to claim 5, characterized in that, The first cap and / or the second cap are further provided with an annular groove, which corresponds to a portion of the end of the cut piece with the serrations, and the width of the annular groove is less than the thickness of the cut piece.

11. The bushing according to claim 5, characterized in that, The first cap and the second cap have adhesive storage cavities on the side near the through hole of the laminated glass.

12. A glass workpiece, characterized in that, The device includes a glass assembly and a bushing as described in any one of claims 1-11, wherein the glass assembly includes laminated glass, the laminated glass has a through hole, the laminated glass has an intermediate film layer, and the bushing is disposed through the through hole of the laminated glass.

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