Quick-release structure of screw rod
By opening multiple screw holes on the end surface of the stud and designing a quick-removal structure for the fixed ring to drive the stud rotation, the problem of inconvenient stud removal in the semiconductor field is solved, and the rapid disassembly and convenient operation of the stud is achieved.
Patent Information
- Application Number
- CN202421066968.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-15
AI Technical Summary
In the semiconductor field, especially in wafer placement devices, the disassembly of the stud is inconvenient because the end surface of the screw is smooth and cannot be screwed from the upper part, but can only be screwed from the bottom, resulting in troublesome disassembly.
A quick screw removal structure is designed, by opening a plurality of first screw holes and second screw holes on the end surface of the stud, and providing corresponding first screws and second screws on the fixing ring, the fixing ring drives the stud to rotate, and the quick disassembly is achieved.
The rapid disassembly of the stud at the free end is realized, and the disassembly process becomes very convenient, solving the problem of inconvenient disassembly of studs in the prior art.
Smart Images
Figure CN222668630U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stud connection, in particular to a screw rod quick-release structure. Background Art
[0002] A stud is a mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw. Studs are commonly used fasteners in daily life. The stud head is set in a hexagonal shape, and a hexagonal wrench can be used to tighten or loosen the stud.
[0003] However, the inventors have discovered that in the semiconductor field, especially on wafer placement devices (such as wafer boxes), the stud head is usually installed downward and the free end of the screw is upward. When disassembling, due to the threads on the screw and the smooth end surface, it cannot be twisted from the top and can only be twisted from the bottom, which makes disassembly very inconvenient. Utility Model Content
[0004] The utility model aims to provide a screw rod quick-disassembly structure, which can realize quick disassembly of the screw rod at the free end of the screw rod and is convenient to disassemble.
[0005] The embodiment of the utility model is achieved as follows:
[0006] In the first aspect, the utility model provides a screw quick-release structure, including a stud, a nut and a fixing ring, the outer peripheral surface of the stud is provided with an external thread, the stud is used to be assembled on an external machine, the nut is arranged at one end of the stud, and a plurality of first screw holes and a plurality of second screw holes are opened on the other end surface of the stud, the plurality of first screw holes are arranged in sequence along a first straight line direction, and the plurality of second screw holes are arranged in sequence along a second straight line direction, at least one side surface of the fixing ring is provided with a plurality of first screws and a plurality of second screws, the plurality of first screws are arranged in sequence along the first straight line direction, and are plugged into the plurality of first screw holes one by one, the plurality of second screws are arranged in sequence along the second straight line direction, and are plugged into the plurality of second screw holes one by one, so that the fixing ring and the stud remain relatively fixed, and the fixing ring is used to drive the stud to rotate.
[0007] In an optional embodiment, a center hole is arranged at the center of the end face of the stud, the first straight line direction and the second straight line direction are both along the radial direction of the center hole, and a plurality of first screw holes are arranged on both sides of the center hole along the first straight line direction, and a plurality of second screw holes are arranged on both sides of the center hole along the second straight line direction.
[0008] In an optional embodiment, the first straight line direction and the second straight line direction are perpendicular to each other, so that the plurality of first screw holes and the plurality of second screw holes are distributed in a cross shape.
[0009] In an optional embodiment, the first screw hole and the second screw hole are both in a mushroom head shape, the mushroom head shape includes a first semicircular area and a second semicircular area spliced to each other, the diameter of the first semicircular area is larger than the diameter of the second semicircular area, the shape of the first screw rod is adapted to the shape of the first screw hole, and the shape of the second screw rod is adapted to the shape of the second screw hole.
[0010] In an optional embodiment, the first semicircular areas of every two adjacent first screw holes along the first straight line direction are in opposite directions, so that the plurality of first screw holes are staggered in pairs.
[0011] In an optional embodiment, the first semicircular areas of every two adjacent second screw holes along the second straight line direction are in opposite directions, so that the plurality of second screw holes are staggered in pairs.
[0012] In an optional embodiment, the first semicircular areas of the plurality of first screw holes along the first straight line direction are oriented in the same direction, and the first semicircular areas of the plurality of second screw holes along the second straight line direction are oriented in the same direction.
[0013] In an optional embodiment, along the first straight line direction, the first semicircular areas of the first screw holes located on both sides of the center hole are facing oppositely; along the second straight line direction, the first semicircular areas of the second screw holes located on both sides of the second center hole are facing oppositely.
[0014] In an optional embodiment, the first screw rod and the second screw rod are disposed on both side surfaces of the fixing ring, and end surfaces of a plurality of the first screw rods and a plurality of the second screw rods on the same side are flush with each other.
[0015] In an optional embodiment, an auxiliary screw hole is further formed on the edge of the nut, the axial direction of the auxiliary screw hole is parallel to the axial direction of the stud, and a disassembly piece is detachably assembled in the auxiliary screw hole, and the disassembly piece is used to drive the nut to rotate.
[0016] The beneficial effects of the embodiments of the utility model include:
[0017] The screw quick-release structure provided by the embodiment of the utility model is achieved by opening a first screw hole and multiple second screw holes on the end face of the stud, and the multiple first screw holes are arranged in sequence along the first straight line direction, and the multiple second screw holes are arranged in sequence along the second straight line direction, and multiple first screws and multiple second screws are arranged on the fixing ring, the multiple first screws are arranged in sequence along the first straight line direction and are inserted into the multiple first screw holes one by one, and the multiple second screw holes are arranged in sequence along the second straight line direction and are inserted into the multiple second screw holes one by one, so that the fixing ring and the stud remain relatively fixed, and the fixing ring can drive the stud to rotate. In actual use, the stud and nut are installed on an external machine to achieve the function of a conventional fastener, and the stud is set upward. When the stud needs to be removed, it is inconvenient to remove it because the nut is at the bottom. Therefore, an additional fixing ring needs to be designed. First, align the side of the fixing ring with the first stud and the second stud with the top of the stud, and then align the first screw and the second screw with the first screw hole and the second screw hole and insert them, so that the stud and the fixing ring remain relatively fixed in the circumferential direction, and then apply force to the fixing ring along the circumferential direction, which can be done manually or with the help of an additional fixture, so that the fixing ring drives the stud to rotate, thereby realizing the removal of the stud. Compared with the prior art, the screw quick-release structure provided by the utility model can realize the rapid removal of the stud at the free end of the stud, and the removal is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 A schematic diagram of a screw quick-release structure provided in the first embodiment of the utility model;
[0020] Figure 2 for Figure 1 Schematic diagram of the structure of the middle stud;
[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the middle fixed ring;
[0022] Figure 4 for Figure 2 A schematic diagram of the distribution of the first screw hole and the second screw hole;
[0023] Figure 5 This is a schematic diagram of the distribution of the first screw hole and the second screw hole in the second embodiment of the utility model;
[0024] Figure 6Schematic diagram of the distribution of the first screw hole and the second screw hole in the third embodiment of the utility model.
[0025] icon:
[0026] 100-screw quick-release structure; 110-screw; 111a-first screw hole; 111b-second screw hole; 113-center hole; 115-first semicircular area; 117-second semicircular area; 130-nut; 131-auxiliary screw hole; 150-fixing ring; 151a-first stud; 151b-second stud; 153-center column. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] As disclosed in the background technology, in the prior art, for the inverted stud structure, since the top of the stud is bare and has no force application point, directly applying force with a clamp will easily damage the threaded structure on the top of the stud. Therefore, when the stud is disassembled, it can only be removed from the nut at the bottom, which makes disassembly very troublesome.
[0034] In order to solve the above problems, the utility model provides a screw quick-release structure. The specific structure and principle of the screw quick-release structure are described in detail below.
[0035] First embodiment
[0036] Please refer to Figures 1 to 4 The utility model provides a screw rod quick-disassembly structure 100, which can realize the quick disassembly of the stud at the free end of the stud, and the disassembly is very convenient.
[0037] The present embodiment provides a screw quick-release structure 100, including a stud 110, a nut 130 and a fixing ring 150. The outer peripheral surface of the stud 110 is provided with an external thread, and the stud is used to be assembled on an external machine. The nut 130 is arranged at one end of the stud 110, and a plurality of first screw holes 111a and a plurality of second screw holes 111b are opened on the other end surface of the stud 110. The plurality of first screw holes 111a are arranged in sequence along a first straight line direction, and the plurality of second screw holes 111b are arranged in sequence along a second straight line direction. A plurality of first screws and a plurality of second screws are arranged on at least one side surface of the fixing ring 150. The plurality of first screws are arranged in sequence along the first straight line direction and are plugged into the plurality of first screw holes 111a one by one. The plurality of second screws are arranged in sequence along the second straight line direction and are plugged into the plurality of second screw holes 111b one by one, so that the fixing ring 150 and the stud 110 remain relatively fixed, and the fixing ring 150 is used to drive the stud 110 to rotate.
[0038] It should be noted that the nut 130 and the stud 110 in this embodiment are both used for assembly on an external machine, for example, they can be assembled in the threaded hole of the external machine, and the stud 110 is set upward to achieve the function of a conventional fastener, and the stud 110 is set upward. When the stud 110 needs to be removed, it is inconvenient to remove it because the nut 130 is at the bottom, so it is necessary to additionally design a fixing ring 150. First, align the side of the fixing ring 150 provided with the first stud 151a and the second stud 151b with the top of the stud 110, and then align the first screw and the second screw with the first screw hole 111a and the second screw hole 111b and insert them, so that the stud 110 and the fixing ring 150 remain relatively fixed in the circumferential direction, and then apply force to the fixing ring 150 in the circumferential direction, which can be done manually or with the help of an additional jig, so that the fixing ring 150 drives the stud 110 to rotate, thereby realizing the removal of the stud 110.
[0039] In this embodiment, a center hole 113 is provided at the center of the end surface of the stud 110, the first linear direction and the second linear direction are both along the radial direction of the center hole 113, and a plurality of first screw holes 111a are provided on both sides of the center hole 113 along the first linear direction, and a plurality of second screw holes 111b are provided on both sides of the center hole 113 along the second linear direction. Specifically, the center hole 113 is a circular hole structure, and a center column 153 is further provided at the center of the fixing ring 150, and the center column 153 is correspondingly assembled in the center hole 113.
[0040] In this embodiment, the first straight line direction and the second straight line direction are perpendicular to each other, so that the plurality of first screw holes 111a and the plurality of second screw holes 111b are distributed in a cross shape. Specifically, the hole array formed by the plurality of first screw holes 111a and the plurality of second screw holes 111b intersects at the center hole 113, and the plurality of first screw holes 111a and the plurality of second screw holes 111b distributed in a cross shape can make the force of the plurality of first screw rods and the plurality of second screw rods more uniform. Of course, in other preferred embodiments of the utility model, the first straight line direction and the second straight line direction can also be arranged at an acute angle.
[0041] In this embodiment, the first screw hole 111a and the second screw hole 111b are both in the shape of a mushroom head, and the mushroom head shape includes a first semicircular area 115 and a second semicircular area 117 that are spliced to each other, and the diameter of the first semicircular area 115 is larger than the diameter of the second semicircular area 117. The shape of the first screw rod is adapted to the shape of the first screw hole 111a, and the shape of the second screw rod is adapted to the shape of the second screw hole 111b. Specifically, the first screw hole 111a and the second screw hole 111b have the same shape and size, so the first screw rod and the second screw rod have the same shape and size, and the first screw rod and the second screw rod are respectively inserted into the first screw hole 111a and the second screw hole 111b.
[0042] Furthermore, the first semicircular areas 115 of each two adjacent first screw holes 111a along the first straight line direction face oppositely, so that the first screw holes 111a are staggered in pairs. The first semicircular areas 115 of each two adjacent second screw holes 111b along the second straight line direction face oppositely, so that the second screw holes 111b are staggered in pairs. Through this staggered design, the fixing ring 150 can withstand the same torque regardless of whether it rotates in the forward or reverse direction, and the stress on the screw rod is reduced.
[0043] It should be noted that the first semicircular area 115 and the second semicircular area 117 are both semicircular structures, and the orientation of the first semicircular area 115 refers to the direction in which the first semicircular area 115 is away from the second semicircular area 117 .
[0044] In this embodiment, the first screw and the second screw are disposed on both sides of the fixing ring 150, and the end faces of the multiple first screws and the multiple second screws on the same side are flush. Specifically, the first screw and the second screw are disposed on both sides, and there is no need to distinguish the front and back sides of the fixing ring 150 during insertion. At the same time, the first screw and the second screw on the uninserted side can also cooperate with an external rotating fixture, and the external rotating fixture is used to drive the fixing ring 150 to rotate, thereby further optimizing the disassembly process.
[0045] In this embodiment, an auxiliary screw hole 131 is further provided at the edge of the nut 130, the axis direction of the auxiliary screw hole 131 is parallel to the axis direction of the stud 110, and a disassembly piece is detachably mounted in the auxiliary screw hole 131, and the disassembly piece is used to drive the nut 130 to rotate. Specifically, the disassembly piece can be a smaller screw structure, through which it can be used as a force application point, so that an external disassembly fixture can apply force to the nut 130, for example, cooperate with the upper rotating fixture to drive the stud 110 to rotate.
[0046] In summary, the screw quick-release structure 100 provided by the embodiment of the utility model is provided with a first screw hole 111a and a plurality of second screw holes 111b on the end face of the stud 110, and the plurality of first screw holes 111a are arranged sequentially along the first straight line direction, and the plurality of second screw holes 111b are arranged sequentially along the second straight line direction, and a plurality of first screws and a plurality of second screws are arranged on the fixing ring 150, and the plurality of first screws are arranged sequentially along the first straight line direction and are plugged into the plurality of first screw holes 111a one by one, and the plurality of second screw holes 111b are arranged sequentially along the second straight line direction and are plugged into the plurality of second screw holes 111b one by one, so that the fixing ring 150 and the stud 110 remain relatively fixed, and the fixing ring 150 can drive the stud 110 to rotate. In actual use, the stud 110 and the nut 130 are installed on an external machine to achieve the function of a conventional fastener, and the stud 110 is arranged upward. When the stud 110 needs to be removed, it is inconvenient to remove it because the nut 130 is at the bottom, so it is necessary to additionally design a fixing ring 150. First, align the side of the fixing ring 150 provided with the first stud 151a and the second stud 151b with the top of the stud 110, and then align the first screw and the second screw with the first screw hole 111a and the second screw hole 111b and insert them, so that the stud 110 and the fixing ring 150 remain relatively fixed in the circumferential direction, and then apply force to the fixing ring 150 in the circumferential direction, which can be done manually or with the help of an additional jig, so that the fixing ring 150 drives the stud 110 to rotate, thereby realizing the removal of the stud 110. Compared with the prior art, the screw quick-release structure 100 provided by the utility model can realize the rapid removal of the stud at the free end of the stud, and the removal is very convenient.
[0047] Second embodiment
[0048] See also Figure 5 This embodiment provides another screw quick-release structure 100, whose basic structure, principle and technical effects are the same as those of the first embodiment. For the sake of brief description, for parts not mentioned in this embodiment, reference can be made to the corresponding contents in the first embodiment. Compared with the first embodiment, the difference in this embodiment lies in the distribution of the first screw hole 111a and the second screw hole 111b.
[0049] In this embodiment, the first semicircular areas 115 of the plurality of first screw holes 111a along the first straight line direction are oriented in the same direction, and the first semicircular areas 115 of the plurality of second screw holes 111b along the second straight line direction are oriented in the same direction. Specifically, the directions of the plurality of first screw holes 111a are consistent, and the directions of the plurality of second screw holes 111b are consistent, thereby achieving a smaller stress in the rotation direction. In addition, the structures of the plurality of first screw rods and the plurality of second screw rods are also adaptively improved.
[0050] Third embodiment
[0051] See also Figure 6 This embodiment provides another screw quick-release structure 100, whose basic structure, principle and technical effects are the same as those of the first embodiment. For the sake of brief description, for parts not mentioned in this embodiment, reference can be made to the corresponding contents in the first embodiment. Compared with the first embodiment, the difference in this embodiment lies in the distribution of the first screw hole 111a and the second screw hole 111b.
[0052] In this embodiment, in the first straight direction, the first semicircular areas 115 of the first screw holes 111a on both sides of the center hole 113 face oppositely; in the second straight direction, the first semicircular areas 115 of the second screw holes 111b on both sides of the second center hole 113 face oppositely. Specifically, the plurality of first screw holes 111a and the plurality of second screw holes 111b are rotated and distributed, which can reduce the stress between the upper and lower areas in the cross direction. At the same time, the first screw and the second screw are also adjusted accordingly.
[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A screw quick-release structure, characterized in that: It includes a stud, a nut and a fixing ring, the outer peripheral surface of the stud is provided with an external thread, the stud is used to be assembled on an external machine, the nut is arranged at one end of the stud, and a plurality of first screw holes and a plurality of second screw holes are opened on the other end surface of the stud, the plurality of first screw holes are arranged in sequence along a first straight line direction, and the plurality of second screw holes are arranged in sequence along a second straight line direction, at least one side surface of the fixing ring is provided with a plurality of first screws and a plurality of second screws, the plurality of first screws are arranged in sequence along the first straight line direction and are inserted into the plurality of first screw holes one by one, the plurality of second screws are arranged in sequence along the second straight line direction and are inserted into the plurality of second screw holes one by one, so that the fixing ring and the stud remain relatively fixed, and the fixing ring is used to drive the stud to rotate.
2. The screw quick-release structure according to claim 1, characterized in that: A center hole is arranged at the center of the end face of the stud, the first straight line direction and the second straight line direction are both along the radial direction of the center hole, and a plurality of the first screw holes are arranged on both sides of the center hole along the first straight line direction, and a plurality of the second screw holes are arranged on both sides of the center hole along the second straight line direction.
3. The screw quick-release structure according to claim 2, characterized in that: The first straight line direction and the second straight line direction are perpendicular to each other, so that the plurality of first screw holes and the plurality of second screw holes are distributed in a cross shape.
4. The screw quick-release structure according to claim 2, characterized in that: The first screw hole and the second screw hole are both in a mushroom head shape, and the mushroom head shape includes a first semicircular area and a second semicircular area spliced to each other, the diameter of the first semicircular area is larger than the diameter of the second semicircular area, the shape of the first screw rod is adapted to the shape of the first screw hole, and the shape of the second screw rod is adapted to the shape of the second screw hole.
5. The screw quick-release structure according to claim 4, characterized in that: The first semicircular areas of every two adjacent first screw holes along the first straight line are oriented in opposite directions, so that the first screw holes are arranged alternately in pairs.
6. The screw rod quick release structure according to claim 4, characterized in that: The first semicircular areas of every two adjacent second screw holes along the second straight line are oriented in opposite directions, so that the plurality of second screw holes are staggered in pairs.
7. The screw rod quick release structure according to claim 4, characterized in that: The first semicircular areas of the plurality of first screw holes along the first straight line direction are oriented in the same direction, and the first semicircular areas of the plurality of second screw holes along the second straight line direction are oriented in the same direction.
8. The screw rod quick release structure according to claim 4, characterized in that: Along the first straight line direction, the first semicircular areas of the first screw holes located on both sides of the center hole face opposite directions; along the second straight line direction, the first semicircular areas of the second screw holes located on both sides of the center hole face opposite directions.
9. The screw rod quick release structure according to claim 1, characterized in that: The first screw rod and the second screw rod are disposed on both side surfaces of the fixing ring, and end surfaces of a plurality of the first screw rods and a plurality of the second screw rods located on the same side are flush.
10. The screw rod quick release structure according to claim 1, characterized in that: An auxiliary screw hole is also formed at the edge of the nut, the axial direction of the auxiliary screw hole is parallel to the axial direction of the stud, and a disassembly piece is detachably mounted in the auxiliary screw hole, and the disassembly piece is used to drive the nut to rotate.