Double-end tooth stud

Abstract

The utility model belongs to the technical field of studs, and particularly relates to a stud. Comprising a connecting section; the first stud section is arranged at one end of the connecting section; the second stud section is arranged at the other end of the connecting section; the assembling and disassembling assembly is used for locking or disassembling the first stud section and the second stud section; the assembling and disassembling assembly comprises a bolt head arranged on the opposite faces of the first stud section and the second stud section; the mounting groove is formed in the bolt head; the fixing pieces are arranged at the upper end and the lower end of the connecting section, and the fixing pieces are embedded in the mounting grooves; the multiple mounting holes are evenly formed in the bolt head at intervals in the circumferential direction, and the mounting holes communicate with the mounting groove; the positioning holes are formed in the fixing piece, the number of the positioning holes is consistent with that of the mounting holes, and the positioning holes are in one-to-one correspondence; and the screw penetrates through the mounting hole and the positioning hole and is in threaded connection with the mounting hole and the positioning hole. The utility model provides a double-end stud which can be used for detaching double-end studs at two ends and is convenient for taking out the stud after loose threads.

Description

Technical Field

[0001] The utility model belongs to the technical field of double-ended threaded studs, in particular to a double-ended threaded stud. Background Art

[0002] Studs are cylindrical fasteners with threads on both ends. They are widely used in electric power, chemical industry, oil refining, valves, railways, bridges, steel structures, auto parts, machinery, boiler steel structures, tower cranes, large-span steel structures and large buildings. They are mainly used for large equipment with large main body and accessories, such as sight glasses, mechanical seal seats, reducer racks, etc. Stud bolts are required. One end of the stud bolt is screwed into the main body and the other end is equipped with a nut after the accessories are installed. Since the accessories are often disassembled, when the main body and accessories are directly connected by bolts, the main thread will wear or damage over time, and it is very convenient to replace them with stud bolts. When the thickness of the connecting body is very large and the length of the bolt is very long, stud bolts are required. In actual work, external loads such as vibration, change, and high-temperature creep of materials will cause friction to decrease. The positive pressure in the thread pair disappears at a certain moment and the friction is zero, thereby loosening the threaded connection. If it is repeatedly used, the threaded connection will loosen and fail. Therefore, it is necessary to prevent loosening, otherwise it will affect normal work and cause accidents. The use of stud bolts has the purpose of preventing loosening.

[0003] The installation method of the double-ended stud is: first screw the short end of the thread into the machine base (the base with a blind hole), and make sure to screw it all the way to the low beam pole. Then add two nuts to the longer end of the thread and screw them in. Then take out the double nuts, insert them into the machine cover, put the washer on the screw, and finally tighten the nut.

[0004] Since the studs need to be connected to the objects at both ends, it is easy to cause thread slippage during installation. For example, if the installation angle is wrong, the threads cannot be aligned correctly, causing thread slippage; if the screws are tightened continuously after being tightened, thread slippage may also occur; if the tightening sequence of the screws is incorrect, the tightening holes will be misaligned, and the required tightening torque will be too large, which is difficult to control and causes thread slippage; if the tightening hole is too large, thread slippage may also occur. Over-tightening. Over-tightening may cause excessive deformation or damage of the threads, resulting in thread slippage.

[0005] The current double-ended studs are of integrated design. If one end of the double-ended stud is stripped, the stud will be embedded in the object to be installed and is difficult to remove. When the stud is removed, it is easy to affect the stable installation of the other end of the stud on the object to be installed. Utility Model Content

[0006] The utility model aims to solve the above-mentioned technical problems and provides a double-thread stud capable of disassembling the double-thread stud at both ends so as to facilitate taking out the stud after the threads are slipped.

[0007] In view of this, the utility model provides a double-ended threaded stud, comprising:

[0008] Connecting segment;

[0009] A first stud section, disposed at one end of the connecting section;

[0010] A second stud section, disposed at the other end of the connecting section;

[0011] A mounting and dismounting assembly is arranged on the connecting section and cooperates with the first stud section and the second stud section to lock or disassemble the first stud section and the second stud section;

[0012] The handling assembly includes:

[0013] A bolt head is arranged on the opposite surface of the first stud section and the second stud section;

[0014] A mounting slot is provided in the bolt head;

[0015] The fixing parts are arranged at the upper and lower ends of the connecting section, and the fixing parts are embedded in the installation groove;

[0016] There are multiple mounting holes, which are evenly spaced and arranged on the bolt head along the circumferential direction, and the mounting holes are connected with the mounting groove;

[0017] Positioning holes are opened on the fixing parts. The number of positioning holes is the same as that of mounting holes, and they correspond one to one.

[0018] The screws are inserted into the mounting holes and the positioning holes and are threadedly connected with the mounting holes and the positioning holes.

[0019] In the above technical solution, further, the installation groove is a hexagonal groove, the fixing piece is a hexagonal column, the outer diameter of the hexagonal column is adapted to the inner diameter of the hexagonal groove, and the hexagonal column is embedded in the hexagonal groove.

[0020] In any of the above technical solutions, further, the first stud section and the second stud section are provided with threads, wherein one thread spirals upward and the other thread spirals downward.

[0021] In any of the above technical solutions, further, a twisting groove for twisting is provided inside the first stud section and the second stud section, and the twisting groove extends outward to pass through the first stud section and the second stud section.

[0022] In any of the above technical solutions, further, a stabilizing component is included, and the stabilizing component includes:

[0023] A flat groove is provided at one end of the first stud section and the second stud section which are away from each other;

[0024] A first groove is provided on the left and right sides of the upper end of the first stud section, the first groove extends outward to pass through the first stud section, and the first groove is connected to the twisting groove on the same side;

[0025] A second groove is provided on the left and right sides of the lower end of the second stud section, the second groove extends outward to pass through the second stud section, and the second groove is connected to the twisting groove on the same side;

[0026] The limiting plates are respectively arranged in the first groove and the second groove, and the left and right ends of the limiting plates extend outwards;

[0027] A fixing hole is provided on the flat groove, and the fixing hole is connected with the twisting groove;

[0028] The screws are threadedly connected to the fixing holes.

[0029] The beneficial effects of the utility model are:

[0030] 1. Through the assembly and disassembly assembly, the first stud section and the second stud section can be connected and separated from the connecting section, so that the double-thread stud can be locked and disassembled conveniently and quickly, so that after the stud is stripped, it can be taken out more conveniently, improving the operation efficiency and convenience;

[0031] 2. By twisting the groove, the installation tool (such as a wrench, a screwdriver, etc.) can rotate the first stud section and the second stud section through the twisting groove, realizing convenient installation and removal of the double-headed stud. The design of the twisting groove ensures the efficiency of applying the rotational force and provides a reliable locking and removal method;

[0032] 3. When the first stud section and the second stud section are screwed in to a certain extent, the limiting plate contacts the surface of the component to be installed, thereby playing a limiting role to prevent them from sliding out or moving, thereby ensuring the stability of the first stud section and the second stud section. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0034] Figure 2 It is a usage state diagram of the utility model;

[0035] Figure 3 It is an exploded view of the utility model;

[0036] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0037] The reference numerals in the figure are: 1, connecting section; 2, first stud section; 3, second stud section; 4, loading and unloading assembly; 41, bolt head; 42, mounting groove; 43, fixing piece; 44, mounting hole; 45, positioning hole; 46, screw; 5, thread; 6, twisting groove; 7, stabilizing assembly; 71, flat groove; 72, first groove; 73, second groove; 74, limiting plate; 75, fixing hole; 76, screw. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0039] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] Embodiment 1:

[0041] like Figure 1-Figure 4 As shown, this embodiment provides a double-ended threaded stud, comprising:

[0042] Connecting segment 1;

[0043] A first stud section 2, arranged at one end of the connecting section 1;

[0044] A second stud section 3, arranged at the other end of the connecting section 1;

[0045] The assembly and disassembly assembly 4 is arranged on the connection section 1 and cooperates with the first stud section 2 and the second stud section 3 to lock or disassemble the first stud section 2 and the second stud section 3;

[0046] The loading and unloading assembly 4 comprises:

[0047] The bolt head 41 is arranged on the opposite surface of the first stud section 2 and the second stud section 3;

[0048] A mounting groove 42 is provided in the bolt head 41;

[0049] The fixing member 43 is disposed at the upper and lower ends of the connecting section 1, and the fixing member 43 is embedded in the mounting groove 42;

[0050] There are a plurality of mounting holes 44, which are evenly spaced apart along the circumferential direction and are formed on the bolt head 41, and the mounting holes 44 are connected to the mounting groove 42;

[0051] Positioning holes 45 are formed on the fixing member 43 , and the number of the positioning holes 45 and the number of the mounting holes 44 are the same and correspond to each other.

[0052] The screw 46 passes through the mounting hole 44 and the positioning hole 45 , and is threadedly connected to the mounting hole 44 and the positioning hole 45 .

[0053] In the present technical solution, by screwing the first stud section 2 and the second stud section 3 into the object to be installed, when the double-headed stud slips during the installation process, the first stud section 2 and the second stud section 3 can be separated by operating the loading and unloading assembly 4. First, the screw 46 is turned, and the screw 46 moves outward along the mounting hole 44 during the turning process. When the screw 46 is completely disengaged from the mounting hole 44 and the positioning hole 45, the user moves the bolt head 41, and the mounting groove 42 in the bolt head 41 moves outward along the fixing piece 43, so that the first stud section 2 and the second stud section 3 are disconnected from the connecting section 1. The connecting section 1 serves as the connecting end of the first stud section 2 and the second stud section 3, and its double-headed stud is fixedly installed as an integrated bridge. When the first stud section 2 and the second stud section 3 are both disconnected from the connecting section 1, the user can use a wrench tool to remove the slipped stud from the object to be installed. The first stud section 2 or the second stud section 3 in the object is taken out. Such operation will not affect the stabilizing effect of the stud that has not been loosened. After the stud in the object is taken out, the new first stud section 2 or the second stud section 3 can be installed on the connecting section 1, and the fixing piece 43 can be inserted into the installing groove 42. The bolt head 41 is connected to the fixing piece 43 through the installing hole 44 and the positioning hole 45 of the screw 46, so that the first stud section 2 and the second stud section 3 are fixedly installed on the connecting section 1 to realize the installation of the double-headed stud. When disassembly is required, the screw 46 can be loosened to release the lock, and the first stud section 2 and the second stud section 3 can be easily disassembled. Therefore, the double-headed stud can realize convenient and quick locking and disassembly of the double-headed stud through the loading and unloading design, so that when the stud is loosened, it can be taken out more conveniently, thereby improving the operating efficiency and convenience.

[0054] Embodiment 2:

[0055] This embodiment provides a double-ended threaded stud, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0056] like Figure 3 As shown, in this embodiment, it is optimized that the mounting groove 42 is an inner hexagonal groove, the fixing member 43 is a hexagonal column, the outer diameter of the hexagonal column is adapted to the inner diameter of the inner hexagonal groove, and the hexagonal column is embedded in the inner hexagonal groove.

[0057] In the present technical solution, since the outer diameter of the hexagonal column is adapted to the inner diameter of the hexagonal groove, the fixing part 43 can be firmly embedded in the mounting groove 42 to ensure the stability of the loading and unloading assembly 4. When the screw 46 is tightened, the fixing part 43 (hexagonal column) will be pressed into the mounting groove 42 (hexagonal groove), thereby locking the first stud section 2 and the second stud section 3. At this time, the matching between the hexagonal column and the hexagonal groove ensures the stable position of the fixing part 43, thereby ensuring the safe connection between the first stud section 2 and the second stud section 3. Through the design of the hexagonal groove and the hexagonal column, the double-headed stud realizes a simple and effective installation and disassembly process, while ensuring the stability and reliability of the connection.

[0058] Embodiment 3:

[0059] This embodiment provides a double-ended threaded stud, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0060] like Figure 1 As shown, in this embodiment, it is optimized that threads 5 are provided on the first stud section 2 and the second stud section 3, wherein one thread 5 is spirally ascending and the other thread 5 is spirally descending.

[0061] In the present technical solution, firstly, the first stud section 2 and the second stud section 3 of the double-headed stud are respectively inserted into the holes in the two parts to be connected. Since the first stud section 2 and the second stud section 3 are both provided with threads 5, one of the threads 5 spirals up and the other thread 5 spirals down, the threads 5 will bite each other during the screwing-in process, so that the two parts are tightly connected. When screwed in to a certain extent, the bite between the rising thread 5 and the descending thread 5 will generate a tensile force, which will pull the two parts tightly together. This bite force will fix the double-headed stud between the two parts and can withstand a certain tensile force and shear force, thereby ensuring the firmness and stability of the connection. When disassembly is required, the double-headed stud only needs to be rotated in the opposite direction, and the bite force between the rising thread 5 and the descending thread 5 will be weakened, so that the tight connection between the two parts can be released, so that the double-headed stud can be easily disassembled. Through the design of the rising and descending threads 5, the double-headed stud realizes a simple and effective connection and disassembly process, while ensuring the firmness and reliability of the connection.

[0062] Embodiment 4:

[0063] This embodiment provides a double-ended threaded stud, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0064] like Figure 3 and Figure 4As shown, in this embodiment, in an optimized manner, a screwing groove 6 for screwing is provided inside the first stud section 2 and the second stud section 3 , and the screwing groove 6 extends outward to pass through the first stud section 2 and the second stud section 3 .

[0065] In the present technical solution, by twisting the groove 6, the installation tool (such as a wrench, a screwdriver, etc.) can rotate the first stud section 2 and the second stud section 3 through the twisting groove 6. By utilizing the twisting groove 6, the rotational force can be applied more effectively, so that the threads 5 between the stud sections are firmly engaged. By tightening, the double-headed stud will tighten the two components to ensure a stable connection. Because the twisting groove 6 runs through the entire stud section, it is more convenient to apply torque to ensure that the stud section can be firmly locked. The design of the twisting groove 6 also facilitates the disassembly process. When the double-headed stud needs to be disassembled, the installation and disassembly can be achieved by inserting the tool into the twisting groove 6 and rotating it in the opposite direction. This has flexibility and convenience, making the disassembly process smoother.

[0066] Embodiment 5:

[0067] This embodiment provides a double-ended threaded stud, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] like Figure 1-Figure 4 As shown, in this embodiment, the optimization further includes a stabilizing component 7, and the stabilizing component 7 includes:

[0069] The flat groove 71 is arranged at one end of the first stud section 2 and the second stud section 3 which are away from each other;

[0070] A first groove 72 is provided on the left and right sides of the upper end of the first stud section 2. The first groove 72 extends outward to pass through the first stud section 2. The first groove 72 is connected to the twisting groove 6 on the same side.

[0071] The second groove 73 is formed on the left and right sides of the lower end of the second stud section 3. The second groove 73 extends outward to pass through the second stud section 3. The second groove 73 is connected to the twisting groove 6 on the same side.

[0072] The limiting plates 74 are respectively disposed in the first groove 72 and the second groove 73, and the left and right ends of the limiting plates 74 extend outwards;

[0073] A fixing hole 75 is provided on the flat groove 71, and the fixing hole 75 is connected to the twisting groove 6;

[0074] The screw 76 passes through the fixing hole 75 and is threadedly connected to the limiting plate 74 .

[0075] In the present technical solution, the two components are tightly connected through the action of the first stud section 2 and the second stud section 3. When they are screwed in to a certain extent, the limiting plate 74 contacts the surface of the component to be installed, thereby limiting the first stud section 2 and the second stud section 3 to prevent them from slipping out or moving. If the first stud section 2 and the second stud section 3 slip during the screwing-in process, the user can unscrew the screw 76, then remove the limiting plate 74 from the first groove 72 or the second groove 73, and then use an installation tool (such as a wrench, a screwdriver, etc.) to rotate the first stud section 2 and the second stud section 3 by twisting the groove 6, so as to remove the first stud section 2 or the second stud section 3 after slipping from the component. In this way, the double-headed stud can be limited to prevent it from slipping out or moving, thereby ensuring the stability of the first stud section 2 and the second stud section 3.

[0076] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A double-ended threaded stud, characterized in that: include: Connecting section (1); A first stud section (2) is arranged at one end of the connecting section (1); A second stud section (3) is arranged at the other end of the connecting section (1); A mounting and disassembly assembly (4), which is arranged on the connecting section (1) and cooperates with the first stud section (2) and the second stud section (3) to lock or disassemble the first stud section (2) and the second stud section (3); The loading and unloading assembly (4) comprises: A bolt head (41) is arranged on opposite surfaces of the first stud section (2) and the second stud section (3); A mounting groove (42) is formed in the bolt head (41); A fixing member (43) is arranged at the upper and lower ends of the connecting section (1), and the fixing member (43) is embedded in the installation groove (42); A plurality of mounting holes (44) are provided on the bolt head (41) at even intervals along the circumferential direction, and the mounting holes (44) are connected to the mounting groove (42); Positioning holes (45) are formed on the fixing member (43), the number of the positioning holes (45) and the number of the mounting holes (44) being the same and corresponding to each other; The screw (46) is inserted into the mounting hole (44) and the positioning hole (45), and is threadedly connected to the mounting hole (44) and the positioning hole (45).

2. A double-ended threaded stud according to claim 1, characterized in that: The installation groove (42) is a hexagonal groove, the fixing member (43) is a hexagonal column, the outer diameter of the hexagonal column is adapted to the inner diameter of the hexagonal groove, and the hexagonal column is embedded in the hexagonal groove.

3. A double-ended threaded stud according to claim 1, characterized in that: The first stud section (2) and the second stud section (3) are provided with threads (5), wherein one of the threads (5) spirals upward and the other of the threads (5) spirals downward.

4. A double-ended threaded stud according to claim 3, characterized in that: The first stud section (2) and the second stud section (3) are provided with screwing grooves (6) for screwing inside, and the screwing grooves (6) extend outwards to pass through the first stud section (2) and the second stud section (3).

5. A double-ended threaded stud according to claim 4, characterized in that: The device further comprises a stabilizing component (7), wherein the stabilizing component (7) comprises: A flat groove (71) is arranged at one end of the first stud section (2) and the second stud section (3) which are away from each other; A first groove (72) is formed on the left and right sides of the upper end of the first stud section (2), the first groove (72) extends outward to pass through the first stud section (2), and the first groove (72) is connected to the twisting groove (6) on the same side; A second groove (73) is provided on the left and right sides of the lower end of the second stud section (3), the second groove (73) extends outward to pass through the second stud section (3), and the second groove (73) is connected to the twisting groove (6) on the same side; A limiting plate (74) is respectively arranged in the first groove (72) and the second groove (73), and the left and right ends of the limiting plate (74) extend outwards; A fixing hole (75) is provided on the flat groove (71), and the fixing hole (75) is communicated with the twisting groove (6); A screw (76) passes through the fixing hole (75) and is threadably connected to the limiting plate (74).

Images