Low-pressure release type self-adsorption box

Abstract

The utility model relates to the technical field of electronic component carriers, in particular to a low-pressure release type self-adsorption box. The self-adsorption box comprises a box body, an air exhaust assembly and a locking assembly, wherein the box body is provided with a first mounting cavity; the air exhaust assembly is located in the first mounting cavity; the exhaust assembly has a piston rod; after the air exhaust assembly exhausts air, the piston rod has a first position; the locking assembly is provided with a locking rod and a driving piece, the driving piece is arranged on the box body, the output end of the driving piece is connected with the locking rod, and an inserting groove is formed in the piston rod; the driving piece is configured to drive the locking rod to move towards the piston rod, and when the piston rod is located at the first position, the locking rod is inserted into the inserting groove. According to the self-adsorption box, the use stability can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of electronic component carrier technology, and more specifically, to a low-pressure release type self-adhesive box. Background Technology

[0002] With the development and advancement of technology, the application of surface-mount electronic components, such as chips and ceramic wafers, is becoming increasingly widespread. After the manufacturing process is completed, these surface-mount electronic components often require the use of self-adhesive boxes for transportation.

[0003] When storing components, the self-adhesive box has the important function of automatic adsorption. When removing components, the self-adhesive box needs to use a vacuum pump to remove the internal air, creating a vacuum environment (approximately a vacuum, meaning the internal air pressure is lower than atmospheric pressure). The self-adhesive membrane deforms due to the pressure difference between the inside and outside, thus releasing the components.

[0004] In related technologies, an air extraction component is integrated into the self-adsorption box for air extraction. However, the piston of the air extraction component is unstable in position during use, which can easily lead to vacuum failure.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this disclosure is to provide a low-pressure release type self-adsorption box, which can improve the stability of the self-adsorption box in use.

[0007] This disclosure provides a low-pressure release type self-adsorption box, comprising:

[0008] A housing having a first mounting cavity;

[0009] An air extraction assembly is located within the first mounting cavity; the air extraction assembly has a piston rod; after the air extraction assembly extracts air, the piston rod has a first position;

[0010] A locking assembly having a locking rod and a drive member, the drive member being disposed on the housing, the output end of the drive member being connected to the locking rod, and the piston rod having a insertion slot; the drive member being configured to drive the locking rod to move toward the piston rod, and when the piston rod is in the first position, the locking rod is inserted into the insertion slot.

[0011] In one embodiment of this disclosure, the driving element is a spring, and the spring is in a compressed state.

[0012] In one embodiment of this disclosure, the locking component is located within the first mounting cavity;

[0013] The locking lever has a first body and a first protrusion connected to the first body. The housing has a sliding opening groove, and the first protrusion passes through the sliding opening groove and is located outside the housing.

[0014] At the first end of the sliding opening groove, the first body is inserted into the insertion groove; at the second end of the sliding opening groove, the first body is moved away from the insertion groove.

[0015] In one embodiment of this disclosure, the locking component further includes a limiting post;

[0016] The limiting post is provided with a limiting groove in the middle, and the spring is located in the limiting groove; when the first body is inserted into the insertion groove, at least part of the first body is located in the limiting groove and fits against the limiting groove.

[0017] In one embodiment of this disclosure, the low-pressure release type self-adsorption box further includes a grid liner structure and a self-adsorption membrane;

[0018] The box body also includes a second mounting cavity; the second mounting cavity is stepped, and the self-adsorption membrane is disposed on the stepped surface of the second mounting cavity, thereby forming a sealed chamber between the self-adsorption membrane and the bottom of the second mounting cavity;

[0019] The mesh lining structure is located within the sealed cavity.

[0020] In one embodiment of this disclosure, the air extraction assembly includes a sub-air extraction mechanism, which includes a tube, a piston, and a first air pipe.

[0021] One end of the piston is placed inside the tube and is slidably connected to the tube, thereby forming a variable air chamber between the tube and the piston. The box has an opening groove that exposes the other end of the piston.

[0022] The bottom of the box has a second air hole that connects the sealed chamber and the first mounting chamber. The tube has a first air hole that communicates with the variable air chamber. The first air hole and the second air hole are sealed together by the first air pipe.

[0023] In one embodiment of this disclosure, the number of sub-vacuuming mechanisms is multiple, and the vacuuming assembly further includes a connecting block;

[0024] The number of second air holes is multiple, and the first air hole of each of the sub-air extraction mechanisms corresponds one-to-one with each of the second air holes, and they are respectively sealed and connected through the first air pipe;

[0025] The tubes of each of the sub-vacuuming mechanisms are connected; the other end of the piston of each of the sub-vacuuming mechanisms is connected via the connecting block, and the opening slot exposes the connecting block;

[0026] The piston rod near the locking assembly is provided with the insertion slot.

[0027] In one embodiment of this disclosure, the bottom of the box body also has a first balance hole that connects the sealed chamber and the first mounting cavity, and the box body also has a second balance hole that connects the external atmosphere and the first mounting cavity; the first balance hole and the second balance hole are connected by a second air pipe; a sealing plug is provided on the second balance hole.

[0028] In one embodiment of this disclosure, the tube is made of antistatic plastic.

[0029] In one embodiment of this disclosure, the self-adsorption membrane is a flexible non-silicon-containing antistatic membrane; the box body is made of the antistatic material.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0032] Figure 1 This is a schematic diagram of the structure of a low-pressure release type self-adsorption box in one embodiment of the present disclosure.

[0033] Figure 2a This is a schematic diagram of the morphology of the self-adsorption membrane in one embodiment of the present disclosure.

[0034] Figure 2b This is a schematic diagram of the morphology of the self-adsorption membrane in one embodiment of the present disclosure.

[0035] Figure 3 This is a schematic diagram of the structure of the air extraction component in one embodiment of the present disclosure.

[0036] Figure 4a This is a schematic diagram of a first structure of the air extraction assembly in one embodiment of the present disclosure.

[0037] Figure 4b This is a schematic diagram of a second structure of the air extraction assembly in one embodiment of the present disclosure.

[0038] Figure 5 This is a schematic diagram of the structure of the air extraction component and the locking component in one embodiment of the present disclosure.

[0039] Figure 6 This is a schematic diagram of the structure of a low-pressure release type self-adsorption box in one embodiment of the present disclosure.

[0040] Figure 7 This is a schematic diagram of the structure of a low-pressure release type self-adsorption box in one embodiment of the present disclosure.

[0041] Figure 8 This is a schematic diagram of the structure of a low-pressure release type self-adsorption box in one embodiment of the present disclosure.

[0042] Figure 9 This is a schematic diagram of the structure of a low-pressure release type self-adsorption box in one embodiment of the present disclosure.

[0043] Figure 10 This is a schematic diagram of the structure of the air extraction component and the locking component in one embodiment of the present disclosure.

[0044] Figure 11 This is a schematic diagram of the structure of a low-pressure release type self-adsorption box in one embodiment of the present disclosure.

[0045] Figure 12 This is a schematic diagram of the structure of a low-pressure release type self-adsorption box in one embodiment of the present disclosure. Attached image description:

[0047] 1. Box lid; 2. Box body; 21. First sub-box body; 22. Second sub-box body; 3. Vacuum assembly; 31. Tube; 32. Piston rod; 33. Insertion groove; 34. First air hole; 35. Piston head; 36. Piston; 37. Connecting block; 4. Self-adhesive membrane; 5. Mesh lining structure; 6. Second balance hole; 7. Second air hole; 8. Second air tube; 9. First air tube; 10. Locking assembly; QA. First mounting cavity; QB. Second mounting cavity; FC. Sealed chamber; 11. Second protrusion; 12. First main body; 13. First protrusion; 14. Spring; 15. Limiting post; 16. First balance hole. Detailed Implementation

[0048] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0049] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0050] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” etc. are used only as markers and are not a limitation on the number of objects or their order.

[0051] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed connection, a detachable connection, or an integral part; it may be a direct connection or an indirect connection through an intermediate medium.

[0052] An exemplary embodiment of this disclosure provides a low-pressure release type self-adsorption box, see [link to example]. Figure 1 The low-pressure release type self-adsorption box includes a lid 1, a box body 2, a self-adsorption membrane 4, a mesh inner lining structure 5, and an air extraction component 3.

[0053] In one embodiment of this disclosure, the housing 2 may have a first sub-housing 21 and a second sub-housing 22 connected together, wherein the first sub-housing 21 has a first mounting cavity QA and the second sub-housing 22 has a second mounting cavity QB. In one example, the first sub-housing 21 and the second sub-housing 22 are integrally formed. In other examples, the first sub-housing 21 and the second sub-housing 22 may be separately formed. In one example, the first sub-housing 21 and the second sub-housing 22 are arranged vertically, wherein the first mounting cavity QA and the second mounting cavity QB are arranged vertically (the first mounting cavity QA is located at the bottom).

[0054] This disclosure uses the example of a first sub-box 21 and a second sub-box 22 being integrated as an example.

[0055] In one embodiment of this disclosure, the lid 1 is disposed on the opening side of the box body 2. The lid 1 can be disposed on the opening side of the box body 2 by means of a flip-top or hinged lid.

[0056] In one embodiment of this disclosure, the lid 1 and the body 2 can be formed by injection molding or other methods.

[0057] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 , Figure 2a and Figure 2b The second mounting cavity QB is stepped (i.e., the second mounting cavity QB is a stepped hole with a stepped surface). The large diameter end of the stepped second mounting cavity QB faces the cover 1. The self-adsorption membrane 4 is disposed on the stepped surface of the second mounting cavity QB, thereby forming a sealed chamber FC between the self-adsorption membrane 4 and the bottom of the second sub-box 22. The sealed chamber FC is an adsorption space. The vacuum assembly 3 can evacuate the sealed chamber FC to change the shape of the self-adsorption membrane 4.

[0058] In one example, a mesh liner structure 5 is disposed within the sealed chamber FC, and the thickness of the mesh liner structure 5 is slightly less than the height of the sealed chamber FC. In this disclosure, the mesh liner structure 5 is disposed within the sealed chamber FC to provide adsorption support for the self-adsorption membrane 4, the side of the self-adsorption membrane 4 facing away from the mesh liner structure 5 being used to adsorb the object to be adsorbed (e.g., various electronic components).

[0059] In another example, the grid liner structure 5 is disposed within the sealed chamber FC, and the grid liner structure 5 is formed by a plurality of cylinders arranged in an array.

[0060] In one embodiment of this disclosure, the self-adhesive membrane 4 is an elastic polymer film with surface adhesion. The self-adhesive membrane 4 is capable of deformation when the pressure on both sides is different. The self-adhesive membrane 4 can automatically adsorb the object to be adsorbed through adhesion. The object to be adsorbed can be a surface-mount component, a chip, or a ceramic plate, etc. In one example, the self-adhesive membrane 4 is a non-antistatic flexible membrane. In another example, the self-adhesive membrane 4 is an antistatic flexible membrane, thus preventing damage to the object to be adsorbed due to static electricity.

[0061] In one embodiment of this disclosure, the self-adsorption membrane 4 is prepared using a silicon-containing material. In another example, the self-adsorption membrane 4 is prepared using a non-silicon-containing material. This way, when removing the adsorbed component from the self-adsorption membrane 4, the self-adsorption membrane 4 can be kept intact, thus ensuring the integrity and lifespan of the self-adsorption membrane 4, as well as the cleanliness of the adsorbed component and the stability of the circuit.

[0062] In one embodiment of this disclosure, the mesh liner structure 5 is a discontinuous planar support, allowing the self-adhesive membrane 4 to undergo non-uniform elastic deformation. In this example, the orthographic projection of the component to be adsorbed on the housing 2 overlaps with the orthographic projection of at least one mesh opening of the mesh liner structure 5 onto the housing 2. This allows the component to detach from the self-adhesive membrane 4 during evacuation. For example, the orthographic projection of the component to be adsorbed on the housing 2 overlaps with the orthographic projection of one mesh opening onto the housing 2. As another example, the orthographic projection of the component to be adsorbed on the housing 2 overlaps with the orthographic projections of two mesh openings onto the housing 2, and so on.

[0063] In one embodiment of this disclosure, the mesh liner structure 5 is made of a flexible material to avoid damaging the object to be adsorbed.

[0064] In one embodiment of this disclosure, the mesh openings of the mesh lining structure 5 can be triangular, rhomboid, rectangular, etc.

[0065] In one embodiment of this disclosure, the first mounting cavity QA has an opening on one side, through which the air extraction assembly 3 can enter the first mounting cavity QA.

[0066] In this embodiment, see Figure 1 The first mounting cavity QA is connected to the sealed chamber FC through the second air hole 7, and the outlet of the air extraction component 3 is sealed to the second air hole 7 through the first air pipe 9. When the air extraction component 3 extracts air, it draws out the air from the sealed chamber FC. As the air extraction component 3 continuously extracts air, the air pressure in the sealed chamber FC decreases, and a pressure difference is generated between the upper and lower surfaces of the self-adsorption membrane 4 (wherein, the side closer to the box cover 1 is the upper surface of the self-adsorption membrane 4). The air pressure value on the upper surface of the self-adsorption membrane 4 is greater than the air pressure value on the lower surface. Under the action of the pressure difference, the self-adsorption membrane 4 deforms. However, due to the support of the mesh liner structure 5, the part of the self-adsorption membrane 4 not supported by the mesh liner structure 5 is recessed downward and embedded in the mesh openings between the mesh liner structures 5 (see Figure 2b The self-adsorption membrane 4 undergoes non-uniform elastic deformation, resulting in localized indentations and numerous pits, reducing the suction force between the self-adsorption membrane 4 and the workpiece to be adsorbed. Due to the indentation, the membrane in the pitted areas automatically separates from the workpiece, thus achieving a vacuum release function. The low-pressure release self-adsorption box of this disclosure improves the convenience of removing the workpiece from the self-adsorption membrane 4, avoids damage to the workpiece during removal, and improves the efficiency of workpiece removal. Furthermore, after removing the workpiece, the vacuum assembly 3 can inflate the sealed chamber FC, causing the self-adsorption membrane 4 to return to its original shape (see [reference]). Figure 2a ), and continue to be used for the adsorption of the adsorbed object.

[0067] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 12 The bottom of the second sub-box 22 also has a first balance hole 16 connecting the sealed chamber FC and the first mounting cavity QA. The box 2 (which can be either the first sub-box 21 or the second sub-box 22) also has a second balance hole 6 connecting the external atmosphere and the first mounting cavity QA. The first balance hole 16 and the second balance hole 6 are sealed together by a second air pipe 8 (the second air pipe 8 in the figure is only shown as an example). A sealing plug is provided on the second balance hole 6 (the sealing plug is not shown in the figure). In this disclosure, the first balance hole 16 and the second balance hole 6 are provided to balance the pressure on both sides of the self-adsorption membrane 4, ensuring the adsorption force between the self-adsorption membrane 4 and the object to be adsorbed, and avoiding the situation where the pressure on both sides of the self-adsorption membrane 4 is unstable due to air leakage from the suction assembly 3. When it is necessary to balance the pressure difference between the upper and lower surfaces of the self-adsorption membrane 4, the sealing plug in the second balance hole 6 is removed. External air enters the sealed chamber FC through the second balance hole 6 and the first balance hole 16, thereby achieving the balance of the pressure difference between the upper and lower surfaces of the self-adsorption membrane 4.

[0068] In one embodiment of this disclosure, the number of second balancing holes 6 can be set according to requirements, and can be one, two, four, etc. The positions of the second balancing holes 6 can be located at the four corners of the box body 2.

[0069] In one embodiment of this disclosure, the diameter of the second balancing hole 6 may be the same as or different from the diameter of the first balancing hole 16.

[0070] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The end face of the second balance hole 6 can be set towards the cover 1, so that the second balance hole 6 can be exposed after the cover 1 is opened. The sealing plug is set at this end face, which facilitates the installation and removal of the sealing plug.

[0071] In one embodiment of this disclosure, the vacuum assembly 3 is used to perform the vacuum release function, and the self-adsorption membrane 4 is controlled to be in a flat or concave state by adjusting the air pressure in the sealed chamber FC.

[0072] The air extraction assembly 3 in this disclosure has a piston rod 32, which has a first position and a second position. See also Figure 7 and Figure 11 At the first position, the vacuum assembly 3 draws air from the sealed chamber FC, creating a vacuum. See [link / reference]. Figure 2b Under the influence of pressure difference, the self-adsorption membrane 4 becomes trapped within the grid openings of the mesh liner structure 5, reducing the suction force of the self-adsorption membrane 4 on the object to be adsorbed, thereby allowing the object to be removed. See also Figure 6 and Figure 10 At the second position, air is re-injected into the sealed chamber FC, so that the pressure on both sides of the self-adsorption membrane 4 is basically the same. Under the same pressure, see... Figure 2a The self-adsorption membrane 4 is planar, which ensures stable adsorption between the self-adsorption membrane 4 and the object to be adsorbed.

[0073] In this embodiment, the air extraction assembly 3 may include a sub-air extraction mechanism.

[0074] In one example, see Figures 3-9 The number of sub-vacuum mechanisms is one, and the number of second air holes 7 is one. In this example, the sub-vacuum mechanism includes a tube 31, a piston 36, and a first air pipe 9. The piston 36 includes a piston rod 32 and a piston head 35 connected to one end of the piston rod 32. The piston head 35 is placed inside the tube 31 and is slidably connected to the tube 31 (the piston head 35 can be made of an elastic material, for example, rubber. The piston head 35 is in a compressed state inside the tube 31), thereby forming a sealed variable air chamber between the tube 31 and the piston head 35. The first sub-box 21 has an opening groove that exposes the piston rod 32, allowing control of the piston rod 32 through the opening groove. The tube 31 is provided with a first air hole 34 communicating with the variable air chamber, and the first air hole 34 and the second air hole 7 are sealed together through the first air pipe 9. In this disclosure, a variable air chamber refers to a chamber whose size can change, including the case where it becomes 0.

[0075] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 4a and Figure 4b The cross-section of the tube 31 is circular, so its inner diameter can be designed according to the air extraction volume.

[0076] In another example, the number of sub-vacuuming mechanisms is at least two, and the number of sub-vacuuming mechanisms is the same as the number of second air holes 7, and they are set in a one-to-one correspondence. In this way, a large number of sub-vacuuming mechanisms can be used to further accelerate the vacuuming efficiency. Furthermore, if a larger vacuuming volume is required, but it is not convenient to use a tube 31 with a large inner diameter, multiple tubes 31 with small inner diameters can be combined side by side for use (i.e., multiple sub-vacuuming mechanisms can be set).

[0077] In this disclosure, the number of sub-vacuuming mechanisms is two, three, four, six, etc. In this example, we will introduce the concept of having three sub-vacuuming mechanisms.

[0078] See Figure 4b , Figure 5 , Figure 10 and Figure 11Each sub-vacuuming mechanism includes a tube 31, a piston 36, and a first air pipe 9. The piston 36 includes a piston rod 32 and a piston head 35 connected to one end of the piston rod 32. The piston head 35 is placed inside the tube 31 and is slidably connected to the tube 31 (the piston head 35 is in a compressed state inside the tube 31), thereby forming a sealed variable air chamber between the tube 31 and the piston head 35. The first sub-box 21 has an opening slot that exposes the piston rod 32, allowing the piston rod 32 to be controlled through the opening slot. The tube 31 is provided with a first air hole 34 communicating with the variable air chamber, and the first air hole 34 and a corresponding second air hole 7 are sealed together through the first air pipe 9.

[0079] In this example, to synchronously control the three sub-vacuum mechanisms (three piston rods 32), the vacuum assembly 3 may further include a connecting block 37. All three piston rods 32 are connected to the connecting block 37. When the piston rods 32 are in the first position, at least a portion of the connecting block 37 is located outside the first sub-box 21. In one example, when the piston rods 32 are in the first position, the connecting block 37 is entirely located outside the first sub-box 21. When the piston rods 32 are in the second position, at least a portion of the connecting block 37 is located inside the first sub-box 21. In one example, when the piston rods 32 are in the second position, the connecting block 37 is completely located inside the first sub-box 21.

[0080] In this embodiment, the morphological changes of the self-adsorption membrane 4 are controlled by using the piston rod 32 to draw air. This method is simple in structure, lightweight, and easy to carry. It is also easy to operate and control, making it particularly suitable for use in outdoor or other non-production line environments.

[0081] The low-pressure release self-adsorption box provided in this embodiment includes a box body 2, a self-adsorption membrane 4, a mesh liner structure 5, and an air extraction component 3. The box body 2 is provided with a first mounting cavity QA and a second mounting cavity QB. The self-adsorption membrane 4 is disposed in the second mounting cavity QB and forms a sealed chamber FC in the second mounting cavity QB. Multiple mesh liner structures 5 are spaced apart in the sealed chamber FC to support the self-adsorption membrane 4. The side of the self-adsorption membrane 4 facing away from the mesh liner structure 5 is used to adsorb the object to be adsorbed. The air extraction component 3 is disposed in the first mounting cavity QA, and the first mounting cavity QA is connected to the sealed chamber FC. When the air extraction component 3 extracts air, the self-adsorption membrane 4 is partially embedded in the mesh openings between the mesh liner structures 5. The self-adsorption membrane 4 located inside the housing 2 adsorbs the workpiece, preventing damage during transportation or storage and protecting the workpiece. Furthermore, the gas in the sealed chamber FC is extracted by the air extraction component 3, causing the self-adsorption membrane 4 to be partially embedded in the grid openings between the grid lining structure 5. This reduces the suction force between the self-adsorption membrane 4 and the workpiece, improving the convenience of removing the workpiece from the self-adsorption membrane 4, preventing damage during the removal process, and increasing the efficiency of workpiece removal.

[0082] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 4a and Figure 4b The inner wall cross-section of the tube 31 is circular.

[0083] In one embodiment of this disclosure, the piston head 35 is made of rubber, and the tube 31 can be made of plastic, which makes it easier to use the vacuum assembly 3.

[0084] In related technologies, the use of a rubber piston head 35 in conjunction with a plastic tube 31 results in low friction, which can lead to instability in the position of the piston rod 32 of the extraction component, and consequently, instability in the pressure of the sealed chamber FC.

[0085] To address the aforementioned issues, in one embodiment of this disclosure, the low-pressure release self-adsorption box further includes a locking assembly 10. The locking assembly 10 is used to lock the piston rod 32 in a first position, thereby maintaining a constant air pressure within the sealed chamber FC.

[0086] In one embodiment of this disclosure, the locking assembly 10 has a locking rod 20 and a driving member, and the piston rod 32 is provided with a insertion groove 33.

[0087] The driving component is mounted on the housing 2. The output end of the driving component is connected to the locking rod 20. The driving component is configured to drive the locking rod 20 closer to the piston rod 32, thereby causing the locking rod 20 to be inserted into the insertion slot 33 and fixing the position of the piston rod 32. At this time, the piston rod 32 is in the first position.

[0088] In this disclosure, the locking component 10 can lock the position of the piston rod 32 when the piston rod 32 is in the first position, which can ensure the stability of the piston 36 in the first position, thereby keeping the air pressure in the sealed chamber FC constant during the evacuation state.

[0089] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 5 , Figure 6 , Figure 7 , Figure 10 and Figure 11The locking lever 20 may include a first body 12 and a first protrusion 13 and a second protrusion 11 located on the first body 12. The second protrusion 11 is located on the side of the first body 12 near the piston rod 32 and is used to insert into the insertion groove 33. The size of the second protrusion 11 is smaller than the size of the first body 12. This allows for a smaller insertion groove 33 on the piston rod 32 to cooperate with the second protrusion 11, and also helps to reduce the size of the piston rod 32. The first protrusion 13 is located on the side of the first body 12. The housing 2 is provided with a sliding opening groove. The side of the first protrusion 13 away from the first body 12 passes through the sliding opening groove and ends outside the housing 2. The length of the sliding opening groove needs to meet the moving distance of the first protrusion 13. In other words, the sliding opening groove has a first end and a second end. When the first protrusion 13 is located at the first end of the sliding opening groove, the second protrusion 11 is inserted into the insertion groove 33; when the first protrusion 13 is located at the second end of the sliding opening groove, the second protrusion 11 is away from the insertion groove 33. In one example, when the first protrusion 13 is located at the second end of the sliding opening groove, the second protrusion 11 is away from the insertion groove 33 and can abut against the piston rod 32.

[0090] In one embodiment of this disclosure, the driving component is a spring 14. One end of the spring 14 is connected to the housing 2, and the other end is connected to the first main body 12. The spring 14 is in a compressed state. Thus, under the action of the spring 14, the second protrusion 11 can always abut against the piston rod 32. When the air extraction assembly 3 extracts air, the second protrusion 11 can be inserted into the insertion slot 33 only under the action of the spring 14, without the need for external force interference (when it is necessary to inflate the sealed chamber FC, the second protrusion 11 can be detached from the insertion slot 33). The operation is simple. In addition, the use of the spring 14 structure results in low cost, light weight, and easy portability.

[0091] Of course, in other embodiments, the drive unit can be a cylinder structure, but it is heavier and depends on other equipment such as electricity.

[0092] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 6 , Figure 7 and Figure 10The suction assembly 3 also includes a limiting post 15, which limits the spring 14 and the first body 12 to ensure stable movement of the first body 12 under the action of the spring 14. In one example, the limiting post 15 has a limiting groove in the middle, the spring 14 is located in the limiting groove, one end of the spring 14 is connected to the limiting groove, and the other end is connected to the first body 12. When the second protrusion 11 is inserted into the insertion groove 33, at least a portion of the first body 12 is located in the limiting groove, and the size of the limiting groove is adapted to the size of the first body 12, so that the second protrusion 11 is stably inserted into the insertion groove 33 under the action of the spring 14. In this example, a sliding block can be provided on the first body 12, and a sliding groove can be provided on the inner wall of the limiting post 15. The sliding block is embedded in the sliding groove and can slide along the sliding groove. In this disclosure, the movement of the first body 12 can be further stabilized and limited by the provided sliding groove and sliding block. Of course, in other embodiments, the limiting post 15 may also be other structures not shown.

[0093] In one embodiment of this disclosure, one side of the limiting post 15 can be shared with the box body 2.

[0094] The working principle of this disclosure is as follows:

[0095] When the self-adsorption membrane 4 adsorbs the object to be adsorbed, the air pressure on both sides of the self-adsorption membrane 4 is the same, the self-adsorption membrane 4 has a planar or near-planar structure, and the contact area between the self-adsorption membrane 4 and the object to be adsorbed is large.

[0096] When it is necessary to remove the adsorbed item, the air extraction component 3 extracts air, and the pressure in the sealed chamber FC is less than the atmospheric pressure (the pressure on both sides of the self-adsorption membrane 4 is not equal). At this time, under the action of atmospheric pressure, the part of the self-adsorption membrane 4 outside the grid liner structure 5 is concave downward, thereby reducing the contact area between the self-adsorption membrane 4 and the adsorbed item, reducing the suction force of the self-adsorption membrane 4 on the adsorbed item, thus making it easier to remove the adsorbed item from the low-pressure release type self-adsorption box and avoiding damage to the adsorbed item.

[0097] The method of using the low-pressure release type self-adsorption box provided in this embodiment is as follows: When it is necessary to store the workpiece to be adsorbed, first remove the sealing plug to balance the pressure on the upper and lower surfaces of the self-adsorption membrane 4, and the shape of the self-adsorption membrane 4 becomes flat; place the workpiece to be adsorbed on the self-adsorption membrane 4, and the bottom surface of the workpiece to be adsorbed is completely attached to the self-adsorption membrane 4, without moving or falling off, and then close the box cover 1 to prevent dust. When it is necessary to remove the workpiece to be adsorbed, first use the sealing plug to block the second balance hole 6, then pull the piston rod 32 to evacuate the air, so that the air pressure in the sealed chamber FC is significantly reduced, and the self-adsorption membrane 4 bends and deforms until the second protrusion 11 is engaged in the insertion groove. Release the piston rod 32, and the low pressure in the sealed chamber FC can be kept constant, and then the workpiece to be adsorbed can be taken out. After the operation is completed, the second protrusion 11 is pushed down by the first protrusion 13, and the piston 32 moves towards the first air hole 34 under the action of suction. At this time, the pressure difference on both sides of the self-adsorption membrane 4 decreases. The sealing plug is pulled out, and air automatically enters the sealed chamber FC from the second balance hole 6. The air pressure in the sealed chamber FC returns to atmospheric pressure, and the self-adsorption membrane 4 is deformed back into a flat shape.

[0098] The self-adsorption box disclosed herein enables the storage and retrieval of items anytime and anywhere. Its built-in vacuum assembly 3 provides a vacuum release function, freeing the self-adsorption box from dependence on vacuum equipment. Furthermore, the vacuum assembly 3 has a very simple structure, is easy to manufacture, and is inexpensive.

[0099] This disclosure also provides methods for preparing two different sizes of self-adsorption boxes:

[0100] ① The size of the self-adhesive box is 2 inches.

[0101] 1. Prepare the box body 2 and the box lid 1, wherein, see Figure 1 , Figure 7 , Figure 8 and Figure 9 The box body 2 has a second air hole 7 and a first balance hole 16, both with a diameter of 2mm; the side length of the box body 2 is 2 inches (50.8mm).

[0102] 2. Preparation of the self-adsorption membrane 4 and the inner liner: A square self-adsorption membrane 4 with a side length of 42 mm and a thickness of 0.25 mm is prepared. The material is modified silica gel, and the antistatic grade (surface resistance) of the self-adsorption membrane 4 is 10. 7 ~10 10 Ω; The grid lining structure 5 can be an array of cylinders with a diameter of 1mm and a spacing of 2mm between adjacent cylinders. The outer edge of the grid lining structure 5 is a square with a side length of 36mm.

[0103] 3. Prepare the air extraction assembly 3 and the locking assembly 10: Use two PE hoses with a diameter of 1.5 mm as the first air pipe 9 and the second air pipe 8 respectively; prepare a tube 31 with a diameter of 10 mm; prepare a matching piston 36 with a insertion groove (width of 1.2 mm); prepare a locking rod 20, with the width of the first protrusion 13 and the second protrusion 11 both being 1 mm; prepare a spring 14 as the driving component.

[0104] 4. Assemble the vacuum assembly 3 and locking assembly 10: On the back of the box 2, connect a first air hole 34 and a second air hole 7 with a first air pipe 9, and connect the second balance hole 6 and the first balance hole 16 with another first air pipe 9. See [link / reference] Figure 6 and Figure 7 Then, install the vacuum assembly 3 and the locking assembly 10 into the back of the box 2; test the functions of the vacuum assembly 3 and the locking assembly 10. Figure 7 and Figure 6 As shown, when piston 36 is pulled to the right, locking lever 20 is ejected, and the upper second protrusion 11 enters the insertion slot, locking piston 36; manually press down the right first protrusion 13 to make the upper second protrusion 11 exit the insertion slot, at which point piston 36 is released from constraint and can be pushed and pulled freely.

[0105] 5. Assemble the self-adhesive membrane 4 and the mesh liner structure 5: Attach the mesh liner structure 5 to the inside of the box 2, avoiding the second air pore 7 and the first balance hole 16, as shown below. Figure 8 As shown; then the self-adhesive film 4 is pasted onto the box 2, as shown. Figure 9 As shown.

[0106] 6. Assemble box lid 1: Install the lid onto box body 2.

[0107] Place the item to be adsorbed on the self-adsorption membrane 4. After automatic adsorption is completed, it can be stored or transported. Before removing the item, manually pull out the piston 36. After the piston 36 is locked, the air pressure in the sealed chamber FC is low, for example, below 60 kPa. The self-adsorption membrane 4 is dented due to the pressure difference between the inside and outside, and the self-adsorption membrane 4 automatically separates from the sheet item. Then, remove the sheet item. Finally, reset the piston 36. The item is no longer in use.

[0108] ② The size of the self-adhesive box is 4 inches.

[0109] 1. Prepare the box body 2 and the box lid 1, wherein, see Figure 1 , Figure 11 and Figure 12 The box body 2 has three second air holes 7 and one first balance hole 16, all with a diameter of 2mm; the side length of the box body 2 is 4 inches (101.6mm).

[0110] 2. Preparation of the self-adsorption membrane 4 and the inner liner: A square self-adsorption membrane 4 with a side length of 88 mm and a thickness of 0.2 mm is prepared. The material is a modified silicon-free membrane, and the antistatic grade (surface resistivity) of the self-adsorption membrane 4 is 10. 5 ~10 7 Ω; The mesh opening of the mesh lining structure 5 is diamond-shaped, with a width of 1mm and a height of 2mm. The outer edge of the mesh lining structure 5 is a square with a side length of 3 inches, and the thickness of the mesh (connecting structure) is 0.8mm.

[0111] 3. Preparation of the suction assembly 3 and the locking assembly 10: Four PE hoses with a diameter of 1.5 mm are used as the first air pipe 9 and the second air pipe 8; see [link to documentation]. Figure 10 and Figure 11 Prepare a parallel-type air extraction assembly 3, consisting of three sub-air extraction mechanisms. The diameter of each tube 31 is 10mm. Prepare three pistons 36, one of which has a insertion groove 33. Connect the three pistons 36 using a connecting block 37. Figure 10 As shown; prepare a locking component 10, the width of the second protrusion 11 is 1.8mm; prepare a spring 14.

[0112] 4. Assemble the vacuum assembly 3 and locking assembly 10: On the back of the box 2, connect the first balance hole 16 and the second balance hole 6 with a second air pipe 8, and connect the three sub-vacuum mechanisms and the other three first air holes 34 with three other first air pipes 9 respectively. Figure 11 As shown; then install the vacuum component 3 and the locking component 10 into the back of the box 2; test the functions of the vacuum component 3 and the locking component 10.

[0113] 5. Assemble the self-adhesive membrane 4 and the mesh liner structure 5: Attach the mesh liner structure 5 to the inside of the box 2, avoiding the second air pore 7 and the first balance hole 16; then attach the self-adhesive membrane 4 to the box 2, as shown below. Figure 12 As shown.

[0114] 6. Assemble box lid 1: Attach the flip lid to box body 2.

[0115] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A low-pressure release type self-adsorption box, characterized in that, include: Box (2), the box (2) having a first mounting cavity (QA); An air extraction assembly (3) is located in the first mounting cavity (QA); the air extraction assembly (3) has a piston rod (32); after the air extraction assembly (3) extracts air, the piston rod (32) has a first position; A locking assembly (10) having a locking lever (20) and a drive member disposed on the housing (2), the output end of the drive member being connected to the locking lever (20), and the piston rod (32) having a insertion slot (33); the drive member is configured to drive the locking lever (20) to move toward the piston rod (32), and when the piston rod (32) is in the first position, the locking lever (20) is inserted into the insertion slot (33).

2. The low-pressure release type self-adsorption box according to claim 1, characterized in that, The driving component is a spring (14), which is in a compressed state.

3. The low-pressure release type self-adsorption box according to claim 2, characterized in that, The locking component (10) is located within the first mounting cavity (QA); The locking rod (20) has a first body (12) and a first protrusion (13) connected to the first body (12). The box (2) has a sliding opening groove. After the first protrusion (13) passes through the sliding opening groove, it is located outside the box (2). At the first end of the sliding opening groove, the first body (12) is inserted into the insertion groove (33); at the second end of the sliding opening groove, the first body (12) is away from the insertion groove (33).

4. The low-pressure release type self-adsorption box according to claim 3, characterized in that, The locking assembly (10) also includes a limiting post (15); The limiting post (15) is provided with a limiting groove in the middle, and the spring (14) is located in the limiting groove; when the first body (12) is inserted into the insertion groove (33), at least part of the first body (12) is located in the limiting groove and fits against the limiting groove.

5. The low-pressure release type self-adsorption box according to claim 1, characterized in that, The low-pressure release type self-adsorption box also includes a grid liner structure (5) and a self-adsorption membrane (4); The box body (2) further includes a second mounting cavity (QB); the second mounting cavity (QB) is stepped, and the self-adsorption membrane (4) is disposed on the stepped surface of the second mounting cavity (QB), thereby forming a sealed chamber (FC) between the self-adsorption membrane (4) and the bottom of the second mounting cavity (QB); The mesh lining structure (5) is located inside the sealed chamber (FC).

6. The low-pressure release type self-adsorption box according to claim 5, characterized in that, The air extraction assembly (3) includes a sub-air extraction mechanism, which includes a tube (31), a piston (36), and a first air pipe (9); One end of the piston (36) is placed inside the tube (31) and is slidably connected to the tube (31), thereby forming a variable air chamber between the tube (31) and the piston (36). The box (2) has an opening groove that exposes the other end of the piston (36). The box body (2) has a second air hole (7) connecting the sealed chamber (FC) and the first mounting chamber (QA), and the tube (31) is provided with a first air hole (34) communicating with the variable air chamber. The first air hole (34) and the second air hole (7) are sealed together by the first air pipe (9).

7. The low-pressure release type self-adsorption box according to claim 6, characterized in that, The number of the sub-vacuuming mechanisms is multiple, and the vacuuming assembly (3) also includes a connecting block (37); There are multiple second air holes (7), and each of the first air holes (34) of the sub-vacuuming mechanism corresponds one-to-one with each of the second air holes (7), and they are respectively sealed and connected through the first air pipe (9); The tubes (31) of each of the sub-vacuuming mechanisms are connected; the other end of the piston (36) of each of the sub-vacuuming mechanisms is connected via the connecting block (37), and the opening slot exposes the connecting block (37); The piston rod (32) near the locking assembly (10) is provided with the insertion groove (33).

8. The low-pressure release type self-adsorption box according to claim 5, characterized in that, The box body (2) also has a first balance hole (16) connecting the sealed chamber (FC) and the first mounting cavity (QA), and the box body (2) also has a second balance hole (6) connecting the external atmosphere and the first mounting cavity (QA); the first balance hole (16) and the second balance hole (6) are connected through a second air pipe (8); a sealing plug is provided on the second balance hole (6).

9. The low-pressure release type self-adsorption box according to claim 6, characterized in that, The tube (31) is made of antistatic plastic.

10. The low-pressure release type self-adsorption box according to claim 5, characterized in that, The self-adsorption membrane (4) is a flexible non-silicon-containing antistatic membrane; the box body (2) is made of antistatic material.

Images