Split type bolt assembly with bolt capable of being inserted from side where nut is located
By designing the split bolt assembly, the half-thread segment of the bolt and the clamping structure are used to achieve single-side interpolation, and combined with the stop sleeve and hex nut, the problems of decreasing and loosening of the bolt tensile strength are solved, achieving a more stable connection effect .
Patent Information
- Application Number
- CN202420697652.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The tensile strength of existing bolts decreases when passing through the bolt hole and is prone to loosening, resulting in unstable connections.
A split bolt assembly is designed, in which the bolts are divided into two halves, each with threaded segments and a clamp head, which enables one-sided interpolation through a tool connection structure, and uses a stop sleeve and hex nut to prevent loosening.
It effectively improves the tensile strength of the bolt and prevents the nut from loosening, achieving a more stable connection.
Smart Images
Figure CN222185382U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fastener, in particular to a split bolt assembly into which a bolt can be inserted from a side where a nut is located. Background Art
[0002] Currently, in the fields of civil engineering and mechanical installation, there is a great demand for the installation of structural parts connection and fastening. Common bolt fasteners are generally composed of nuts and screws. During installation, it is necessary to clamp the nut or cap on one side and tighten it with a wrench on the other side. Usually the installer can access both sides of the object to be fastened. For special components, such as closed components, although the performance is good and common, the closed end cannot be operated. Therefore, common structures try to avoid closed components. Even if closed components are used, many structural components have to be connected by welding, riveting, or even cutting components to replace the construction process. Therefore, a bolt consisting of more than two parts, such as the one disclosed in Patent No. 2007100993692, which penetrates from one side of the bolt hole, is provided. The bolt has the following deficiencies: the one that passes through the bolt hole is achieved by sacrificing the hook head in the middle part (three hook heads constitute the bolt head). This method causes the bolt to be divided into two parts on both sides when subjected to force, which reduces the tensile strength of the bolt. In order to meet the same tensile strength of the bolt, it can only be achieved by increasing the diameter of the bolt, that is, the strength of the two side sections can meet the requirements, and the middle section only plays the role of expanding the side sections; in addition, when the bolt is used in conjunction with the nut, the nut is easy to loosen. The existing method to prevent loosening is to set a spring washer, and the friction between the threads is increased by the elastic force generated by the spring washer. This method has a poor effect in preventing loosening. Utility Model Content
[0003] The utility model aims to provide a split bolt assembly in which a bolt with a small decrease in tensile strength of the bolt caused by passing through a bolt hole on one side can be inserted from the side where a nut is located, thereby solving the problem that the tensile strength of the bolt is greatly reduced due to the existing bolt being able to pass through a bolt hole on one side.
[0004] The second object of the utility model is to further provide a split bolt assembly which can reliably prevent the bolt from loosening and can be inserted from the side where the nut is located, thereby solving the problem that the existing bolts are prone to loosening.
[0005] The following technical problems are solved by the following technical solutions: A split bolt assembly in which a bolt can be inserted from the side where a nut is located, comprising a bolt for being inserted into a bolt hole on a connected member, the bolt comprising a screw rod and a bolt head arranged at the other end of the screw rod, characterized in that the bolt comprises two bolt halves distributed along the radial direction of the bolt, the bolt halves comprising a half-threaded section and a half-clip arranged at one end of the half-threaded section, the half-threaded sections of the two bolt halves enclose the screw rod, the half-clip of the two bolt halves enclose the bolt head, the circumscribed circle radius of the half-clip is less than the radius of the bolt hole, the half-threaded section and the half-plate clip are eccentrically arranged, the other end of at least one of the half-threaded sections is provided with a tool connection structure for connecting an assembly tool, when the screw rod is coaxially inserted in the bolt hole, the bolt head can be hooked on the connected member to prevent the bolt from falling off from the bolt hole, and when the assembly tool is inserted in the bolt hole, the half-clip can pass through the bolt hole. The specific process of connecting the connected parts is: put the nut on the assembly tool, connect the assembly tool to the tool connection structure of one bolt half, use the assembly tool to pass one end of the bolt half through the bolt hole as a whole through the bolt hole to reach the other end of the bolt hole, adjust the position of the assembly tool so that the other bolt half can pass through the bolt hole, make the half-part clamping head of the other bolt half pass through one end of the bolt hole through the bolt hole to reach the other end of the bolt hole, use the assembly tool to pass the half-part threaded section of one bolt half into the bolt hole, make the two half-part bolt sections close together to form a screw rod, and thread the nut onto the screw rod, so that the bolt head cooperates with the nut to lock the connected part.
[0006] Preferably, the radius of the circumscribed circle where the half-threaded section is located is half of the radius of the circumscribed circle where the half-clip is located, and the eccentricity between the half-threaded section and the half-clip is equal to the radius of the circumscribed circle of the half-threaded section. This can maximize the area of the half-clip hooking the connected part when fixing the connected part.
[0007] Preferably, the tool connection structure includes a connecting threaded hole, the assembly tool includes a rod body and a threaded head arranged at one end of the rod body for threading in the threaded hole, the rod body is provided with a small diameter section, and when the small diameter section is inserted into the bolt hole, the half-section clamp head can pass through the bolt hole. When the bolt hole size is constant, the screw rod can be made thicker.
[0008] Preferably, the tool connection structure further comprises a connection block with one end fixed to the other end of the half threaded section, and the connection threaded hole is arranged on the other end of the connection block. The arrangement of the wall connection threaded hole can affect the strength of the screw.
[0009] Preferably, a positioning block is provided on the half clamp of one bolt half, and a positioning notch is provided on the end surface of the half clamp of the other bolt half away from the half threaded section, so that the two bolt halves can be conveniently spliced into one bolt.
[0010] Preferably, the positioning block is arranged on the half-section clamp of the bolt half with the tool connection structure, and the positioning block is inserted into the positioning notch and the threads on the two half-section threaded sections are aligned when the positioning block is pressed together along the axial direction of the bolt, so that the alignment operation is convenient.
[0011] Preferably, the positioning block is provided with a hook head, and the bottom wall of the positioning notch is provided with a hook hole, and the hook head is inserted into the hook hole to prevent the two bolt halves from separating in the radial direction of the bolt, so that the alignment state can be maintained more reliably.
[0012] Preferably, it also includes a stop sleeve for being sleeved on the screw and a hexagonal nut matched with the screw, a stop hole is provided on the outer surface of the hexagonal nut, a stop groove is provided on the circumferential surface of the screw, which extends along the axial direction of the screw and passes through the end of the screw away from the bolt head, the stop groove is located at the connection between the two half threaded sections, the stop sleeve is provided with a stop tooth for being inserted into the stop groove and a stop plate for being inserted into the stop hole, and the stop plate is a bendable structure. When the hexagonal nut is locked in place, the stop sleeve is sleeved on the screw with the stop tooth in the only stop groove until it abuts against the hexagonal nut, and then the stop plate is bent and inserted into the stop hole, thereby preventing the hexagonal nut from loosening. It can reliably prevent the nut from loosening. The second purpose of the invention is achieved.
[0013] Preferably, there are two anti-rotation grooves and two anti-rotation teeth, and the two anti-rotation teeth are used to be inserted into the two anti-rotation grooves in a one-to-one correspondence. The force is uniform when applied.
[0014] Preferably, the two anti-rotation grooves are evenly distributed along the circumference of the screw.
[0015] Preferably, the two surfaces of the hexagonal nut are provided with the anti-rotation holes, and the anti-rotation plates are two, and the two anti-rotation plates are respectively inserted into the two anti-rotation holes, so that the anti-rotation plates can save effort when bending and ensure that the anti-rotation plates have sufficient strength to prevent rotation.
[0016] Preferably, the two anti-rotation plates are evenly distributed along the circumference of the anti-rotation sleeve to bear uniform force.
[0017] Preferably, the anti-rotation holes are provided on the six faces of the hexagonal nut, and all the anti-rotation holes are connected to form an annular groove extending along the circumference of the hexagonal nut, and the anti-rotation plate cooperates with the bottom surface of the anti-rotation hole to achieve anti-rotation.
[0018] Preferably, a half prism section is provided at one end of the half thread section away from the half clamp, and the half prism sections of the two half thread sections enclose a regular hexagonal prism section, so that the bolts and nuts can be tightened more conveniently and reliably.
[0019] The utility model has the following beneficial effects: the bolt can be passed through the bolt hole from one side, the tensile strength of the bolt can be reduced slightly, and the nut can be reliably prevented from being loosened. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of a viewing angle of the first embodiment;
[0021] Figure 2 It is a three-dimensional structural schematic diagram of the use state of the first embodiment;
[0022] Figure 3 is a front view schematic diagram of another viewing angle of the first embodiment;
[0023] Figure 4 is a schematic diagram of another half of a bolt in Embodiment 1;
[0024] Figure 5 It is a front view schematic diagram of the first embodiment in use;
[0025] Figure 6 It is a schematic diagram of Embodiment 2;
[0026] Figure 7 This is a schematic diagram of Example 3.
[0027] In the figure: connected part 1, bolt hole 8, screw rod 2, bolt head 3, one bolt half 4, another bolt half 5, one half threaded section 6, one half clamp 7, another half threaded section 9, another half clamp 10, tool connecting structure 11, connecting block 12, connecting threaded hole 13, rod body 14, small diameter section 15, positioning block 16, positioning notch 17, anti-rotation sleeve 18, hexagonal nut 19, anti-rotation hole 20, anti-rotation groove 21, anti-rotation tooth 22, anti-rotation plate 23, bolt 24, annular groove 25, half prism section 26, hook head 27, hooking hole 28. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] See also Figures 1 to 5, a split bolt assembly in which a bolt can be inserted from the side where a nut is located, comprising a bolt 24 for penetrating into a bolt hole 8 on a connected member 1, the bolt comprising a screw rod 2 and a bolt head 3 arranged at the other end of the screw rod. The bolt comprises two bolt halves distributed along the radial direction of the bolt, namely, a bolt half 4 and another bolt half 5. One bolt half comprises a half threaded section 6 and a half clamp 7 arranged at one end of the half threaded section. The other bolt half comprises another half threaded section 9 and another half clamp 10 arranged at one end of the other half threaded section. One half threaded section and the other bolt half threaded section together form a screw rod, and one half clamp and the other half clamp together form a bolt head. The radius of the circumscribed circle of one half-clamp and the circumscribed circle of the other half-clamp are equal and are less than the radius of the bolt hole. The half-threaded sections and half-plate clamps of the two bolt halves are eccentrically arranged. The other end of one half-threaded section is provided with a tool connection structure 11 for connecting an assembly tool. The tool connection structure includes a connection block 12 fixed at one end on the other end of one half-threaded section and a connection threaded hole 13 arranged at the other end of the connection block. When the screw rod is coaxially inserted into the bolt hole, the bolt head (i.e., the half-hook heads of the two bolt halves) can hook onto the connected part to prevent the bolt from falling off the bolt hole. The radius of the circumscribed circle where the half-threaded section is located is half of the radius of the circumscribed circle where the half-clamp is located. The eccentricity of the half-threaded section and the half-clamp is equal to the radius of the circumscribed circle of the half-threaded section. The assembly tool includes a rod body 14 and a threaded head arranged at one end of the rod body for threaded connection in a threaded hole. The rod body is provided with a small diameter section 15. When the small diameter section is inserted into the bolt hole, the half-section clamp can pass through the bolt hole. A positioning block 16 is provided on the half-section clamp of one bolt half, and a positioning notch 17 is provided on the end face of the half-section clamp of the other bolt half away from one end of the half-section threaded section. The positioning block is provided on the half-section clamp of the bolt half provided with the tool connection structure. The positioning block is inserted into the positioning notch and the threads on the two half-section threaded sections are aligned when they are pressed together along the axial direction of the bolt.
[0030] It also includes a stop sleeve 18 for sleeved on the screw and a hexagonal nut 19 matched with the screw. A stop hole 20 is provided on the outer surface of the hexagonal nut. Specifically, there are six stop holes, which are arranged one by one on the two outer sides of the hexagonal nut. A stop groove 21 extending along the axial direction of the screw and penetrating the end of the screw away from the bolt head is provided on the circumferential surface of the screw. The stop groove is located at the connection of the two half threaded sections. There are two stop grooves, and the two stop grooves are evenly distributed along the circumference of the screw. The stop sleeve is provided with a stop tooth 22 for penetrating into the stop groove and a stop plate 23 for penetrating into the stop hole. The stop plate is a bendable structure. There are two stop teeth, and the two stop teeth are used to be penetrating into the two stop grooves one by one. There are two stop plates. The two stop plates are evenly distributed along the circumference of the stop sleeve. The two stop plates are used to be penetrating into the two stop holes one by one. The method of locking water inlet is: when the hexagonal nut is locked in place, the anti-rotation sleeve is put on the screw rod with the anti-rotation teeth located in the anti-rotation groove until it abuts against the hexagonal nut, and then the anti-rotation sheet is bent and inserted into the anti-rotation hole, thereby preventing the hexagonal nut from loosening.
[0031] The specific process of connecting the connected parts is as follows: both the nut and the anti-rotation sleeve are set on the assembly tool, the assembly tool is connected to the tool connection structure of one half of the bolt, and the end of the half of the bolt connected to the bolt hole is passed through the bolt hole as a whole through the assembly tool to reach the other end of the bolt hole, and the position of the assembly tool is adjusted so that the other half of the bolt can pass through the bolt hole, so that the half clamp of the other half of the bolt passes through one end of the bolt hole through the bolt hole to reach the other end of the bolt hole, and the half threaded section of one half of the bolt is passed into the bolt hole through the assembly tool, so that the two half bolt sections are closed and spliced to form a screw rod, and the nut is threadedly connected to the screw rod, so that the bolt head cooperates with the nut to lock the connected part. Finally, the anti-rotation sleeve is installed.
[0032] The embodiment is different from the embodiment 1 in that:
[0033] See also Figure 6 All the anti-rotation holes are connected to form an annular groove 25 extending along the circumference of the hexagonal nut, and the anti-rotation plate cooperates with the bottom surface of the anti-rotation hole to achieve anti-rotation. A half-prism section 26 is provided at one end of the half-thread section away from the half-clamp, and the half-prism sections of the two half-thread sections form a regular hexagonal prism section. A half-prism section constitutes a connecting block in the embodiment.
[0034] Embodiment 3 is different from the above two embodiments in that:
[0035] See also Figure 7 The positioning block is provided with a hook head 27, and a hook hole 28 is provided on the bottom wall of the positioning notch. When assembled together, the hook head is hooked in the hook hole to prevent the two bolt halves from separating radially.
[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A split bolt assembly in which a bolt can be inserted from the side where a nut is located, comprising a bolt for passing through a bolt hole on a connected member, the bolt comprising a screw rod and a bolt head arranged at the other end of the screw rod, characterized in that: The bolt includes two bolt halves distributed along the radial direction of the bolt, and the bolt halves include a half-threaded section and a half-clamp arranged at one end of the half-threaded section. The half-threaded sections of the two bolt halves enclose the screw rod, and the half-clamps of the two bolt halves enclose the bolt head. The radius of the circumscribed circle of the half-clamp is less than the radius of the bolt hole. The half-threaded section and the half-clamp are eccentrically arranged. The other end of at least one of the half-threaded sections is provided with a tool connection structure for connecting an assembly tool. When the screw rod is coaxially inserted into the bolt hole, the bolt head can be hooked on the connected part to prevent the bolt from falling off the bolt hole. When the assembly tool is inserted into the bolt hole, the half-clamp can pass through the bolt hole.
2. A split bolt assembly according to claim 1, wherein the bolt can be inserted from the side where the nut is located, characterized in that: The radius of the circumscribed circle where the half thread segment is located is half of the radius of the circumscribed circle where the half clamp is located, and the eccentricity between the half thread segment and the half clamp is equal to the radius of the circumscribed circle of the half thread segment.
3. A split bolt assembly according to claim 1 or 2, wherein the bolt can be inserted from the side where the nut is located, characterized in that: The tool connection structure includes a connecting threaded hole, and the assembly tool includes a rod body and a threaded head arranged at one end of the rod body for threaded connection in the threaded hole. The rod body is provided with a small diameter section, and when the small diameter section is inserted into the bolt hole, the half-section clamp can pass through the bolt hole.
4. A split bolt assembly according to claim 3, wherein the bolt can be inserted from the side where the nut is located, characterized in that: The tool connection structure also includes a connection block with one end fixed to the other end of the half threaded section, and the connection threaded hole is arranged on the other end of the connection block.
5. A split bolt assembly according to claim 1 or 2, wherein the bolt can be inserted from the side where the nut is located, characterized in that: A positioning block is arranged on the half clamp of one bolt half, and a positioning notch is arranged on the end surface of the half clamp of the other bolt half away from one end of the half threaded section.
6. A split bolt assembly according to claim 5, wherein the bolt can be inserted from the side where the nut is located, characterized in that: The positioning block is arranged on the half-part clamp of the bolt half part provided with the tool connection structure. The positioning block is penetrated into the positioning notch and the threads on the two half-part threaded sections are aligned when the positioning block is pressed together along the axial direction of the bolt.
7. A split bolt assembly according to claim 5, wherein the bolt can be inserted from the side where the nut is located, characterized in that: The positioning block is provided with a hook head, and the bottom wall of the positioning notch is provided with a hook hole, and the hook head is inserted into the hook hole to prevent the two bolt halves from being separated in the radial direction of the bolt.
8. A split bolt assembly according to claim 1, wherein the bolt can be inserted from the side where the nut is located, characterized in that: It also includes a stop sleeve for being sleeved on the screw and a hexagonal nut cooperating with the screw, a stop hole being provided on the outer surface of the hexagonal nut, a stop groove extending along the axial direction of the screw and passing through the end of the screw away from the bolt head being provided on the circumferential surface of the screw, the stop groove being located at the connection between the two half threaded sections, the stop sleeve being provided with a stop tooth for being inserted into the stop groove and a stop plate for being inserted into the stop hole, and the stop plate is a bendable structure.
9. A split bolt assembly according to claim 8, wherein the bolt can be inserted from the side where the nut is located, characterized in that: The anti-rotation holes are arranged on the six faces of the hexagonal nut, and all the anti-rotation holes are connected to form an annular groove extending along the circumference of the hexagonal nut, and the anti-rotation plates cooperate with the bottom surfaces of the anti-rotation holes to achieve anti-rotation.
10. A split bolt assembly according to claim 1 or 2 or 8 or 9, wherein the bolt can be inserted from the side where the nut is located, characterized in that: A half prism section is arranged at one end of the half thread section away from the half clamp, and the half prism sections of the two half thread sections enclose a regular hexagonal prism section.