Splicing type bolt

Abstract

The utility model provides a splicing type bolt which comprises a bolt part, an extension part, a connecting part and a positioning part, the two ends of the connecting part are connected with the bolt part and the positioning part respectively, the extension part is arranged on the positioning part in a sleeved mode, one end of the extension part is in threaded connection with the bolt part, and the connecting part comprises a first wedge block, a second wedge block, a fixing column and a connecting block. The positioning part comprises a sleeve lock assembly, a telescopic spring and a rod handle, and the bolt part comprises a screw rod, a first butt joint end and a second butt joint end. The splicing type bolt has the advantages that due to the modular design of the bolt part, the extension part, the connecting part and the positioning part, all the parts can be conveniently connected through threads, on one hand, the bolt part and the connecting part can be smoothly in butt joint, on the other hand, the extension part internally provided with the positioning part can be rapidly in butt joint with the bolt part, and the splicing type bolt is convenient to assemble and disassemble. Therefore, the bolt parts with different lengths can be replaced according to different use scenes and requirements, the overall length of the bolt is flexibly adjusted, and the adaptability of the bolt under different working conditions is greatly improved.

Description

Technical Field

[0001] This utility model mainly relates to the field of bolt technology, specifically to a splicing bolt. Background Technology

[0002] Bolts, as commonly used mechanical parts, are widely used in various mechanical connection scenarios. They are usually used in conjunction with nuts to fasten two parts with through holes, achieving a detachable connection. However, most existing bolts are one-piece structures. When the bolt length cannot meet the fixing requirements of the workpiece, it is necessary to replace it with bolts of other specifications, which not only wastes time and manpower but may also cause work delays.

[0003] Furthermore, bolts are prone to loosening in certain special environments or during long-term use, reducing the stability of the connection, affecting the normal operation of equipment, and even potentially causing safety accidents. For example, in critical components such as automobile engines and bridge structures, loose bolts can lead to serious consequences.

[0004] During the actual implementation process, the inventors discovered the following defects:

[0005] Fixed length and poor adaptability: The length of conventional bolts is determined during production and is difficult to change flexibly. The requirements for bolt length vary greatly in different application scenarios. If the bolt is too short, it cannot meet the connection depth, resulting in an unstable connection. If the bolt is too long, it not only wastes materials, but may also affect the overall layout and operation of the equipment due to the protruding part.

[0006] The locking method is simple and the reliability is poor: Some traditional bolts rely solely on threads for connection and locking. When subjected to external forces such as vibration and impact, the threads are prone to loosening, leading to connection failure and posing a serious threat to the safe operation of the equipment. At the same time, due to the lack of a multi-dimensional locking structure, it is difficult to ensure the stability of the connection parts under complex working conditions, which reduces the reliability and service life of the equipment.

[0007] Inconvenient and inefficient installation and disassembly: The installation and disassembly process of traditional bolts is usually cumbersome, sometimes requiring the use of multiple tools, which consumes a lot of time and labor costs. In some scenarios where the efficiency of installation and disassembly is required to be high, the operation method of traditional bolts seriously affects the work progress and reduces production efficiency.

[0008] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0009] 1. The technical problem to be solved by the utility model:

[0010] This utility model provides a splicing bolt to solve the technical problems existing in the background art.

[0011] 2. Technical Solution:

[0012] To achieve the above objectives, the technical solution provided by this utility model is as follows: a splicing bolt, comprising a bolt portion, an extension portion, a connecting portion, and a positioning portion. The two ends of the connecting portion are respectively connected to the bolt portion and the positioning portion. The extension portion is sleeved on the positioning portion, and one end of the extension portion is threadedly connected to the bolt portion. The connecting portion includes a wedge block one, a wedge block two, a fixing post, and a connecting block. The wedge block one and the wedge block two are arranged in a mirror image. The positioning portion includes a locking assembly. The end of the locking assembly away from the connecting portion is provided with a telescopic spring and a handle. The inner wall of the extension portion is provided with two annular plates. Both annular plates have notches, and a groove is formed between the two annular plates. The bolt portion includes a screw rod. The end of the screw rod near the connecting portion is sequentially provided with a mating end one and a mating end two. The mating end one has external threads, and the mating end two has internal threads.

[0013] Furthermore, the upper and lower ends of the fixed post are fixedly connected to the first wedge block and the connecting block, respectively. The second wedge block is sleeved on the fixed post and movably connected to it. The connecting block has an external thread that matches the second mating end.

[0014] Furthermore, the locking assembly includes a positioning ring, and two spring clips are embedded near the lower end of the first wedge block. The two spring clips are tangent to the outer walls of the first wedge block and the second wedge block.

[0015] Furthermore, the outer wall of the positioning ring is provided with two limiting blocks, which are matched with the notch and the sliding groove. The positioning ring has a receiving cavity that matches the wedge block and the wedge block.

[0016] Furthermore, the rod handle and the locking assembly are fixedly connected by a telescopic spring, and two limiting blocks are provided on the outer wall of the rod handle. A hexagonal groove is provided at the end of the rod handle away from the telescopic spring.

[0017] Furthermore, the end of the extension near the bolt has an internal thread, and the other end of the extension away from the bolt has two slots, which are corresponding to the second limiting block.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0020] 1. This interlocking bolt features a modular design consisting of a bolt section, an extension section, a connecting section, and a positioning section. Each component can be easily connected via threads. On one hand, the bolt section and the connecting section can be smoothly connected. On the other hand, the extension section with the built-in positioning section can also be quickly connected to the bolt section. This allows for the replacement of bolt sections of different lengths according to different usage scenarios and needs, flexibly adjusting the overall length of the bolt and greatly improving its adaptability to different working conditions.

[0021] 2. The connecting part adopts a combination design of wedge blocks, fixed posts and connecting blocks. The locking assembly of the positioning part is provided with a receiving cavity to accommodate the wedge blocks. The layout of each component is reasonable. While ensuring the integrity of the function, it effectively reduces the overall volume of the splicing bolts, making its structure more compact.

[0022] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0025] Figure 3 This is a partial exploded view of the structure of this utility model;

[0026] Figure 4 This is an exploded view of another partial structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the extension section of this utility model.

[0028] Figure label:

[0029] 1. Bolt section; 101. Screw; 102. Connecting end one; 103. Connecting end two; 2. Extension section; 201. Annular retaining plate; 202. Notch; 203. Slide groove; 204. Slot; 3. Connecting section; 301. Wedge block one; 302. Wedge block two; 303. Fixing post; 304. Connecting block; 4. Positioning section; 401. Locking assembly; 4011. Positioning ring; 4012. Spring retaining block; 4013. Limiting block one; 402. Telescopic spring; 403. Rod handle; 4031. Limiting block two; 4032. Hexagonal groove. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0034] See attached document Figure 1-5A splicing bolt includes a bolt portion 1, an extension portion 2, a connecting portion 3, and a positioning portion 4. The two ends of the connecting portion 3 are connected to the bolt portion 1 and the positioning portion 4, respectively. The extension portion 2 is sleeved on the positioning portion 4, and one end of the extension portion 2 is threadedly connected to the bolt portion 1. The connecting portion 3 includes a first wedge block 301, a second wedge block 302, a fixing post 303, and a connecting block 304. The first wedge block 301 and the second wedge block 302 are arranged in a mirror image. The positioning portion 4 includes a locking assembly 401. 1. A telescopic spring 402 and a handle 403 are provided at the end away from the connecting part 3. The inner wall of the extension part 2 is provided with two annular plates 201. Both annular plates 201 have notches 202, and a groove 203 is formed between the two annular plates 201. The bolt part 1 includes a screw 101. The end of the screw 101 near the connecting part 3 is provided with a first mating end 102 and a second mating end 103 in sequence. The first mating end 102 has external threads, and the second mating end 103 has internal threads.

[0035] The upper and lower ends of the fixed post 303 are fixedly connected to the first wedge block 301 and the connecting block 304, respectively. The second wedge block 302 is sleeved on the fixed post 303 and movably connected to it. The connecting block 304 has an external thread that matches the second docking end 103. The two wedge blocks are mirror images and are arranged vertically and vertically. The second wedge block 302 is movably connected. When the lasso assembly 401 moves downward, it first passes through the first wedge block 301. The two spring clips 4012 slide past the first wedge block 301 and then lock between the first wedge block 301 and the second wedge block 302, thus locking the current position. When the locking assembly 401 continues to move downward, the two spring clips 4012 slide down along the second wedge block 302. At this time, both the second wedge block 302 and the first wedge block 301 are located above the locking assembly 401. Moving the locking assembly 401 upward at this time can smoothly slide the two wedge blocks out of the positioning ring 4011, thus unlocking.

[0036] The locking assembly 401 includes a positioning ring 4011. Two spring-loaded blocks 4012 are embedded in the lower end of the positioning ring 4011 near the wedge block 301. The two spring-loaded blocks 4012 are tangent to the outer walls of the wedge block 301 and the wedge block 302. The two spring-loaded blocks 4012 are embedded in the lower end of the positioning ring 4011 and extend and retract by means of telescoping. When the blocks 4012 are squeezed by the wedge blocks, they retract into the positioning ring 4011. When the pressure is released, the blocks 4012 extend out.

[0037] The outer wall of the positioning ring 4011 is also provided with two limiting blocks 4013. The two limiting blocks 4013 are matched with the notch 202 and the slide groove 203. When the two spring clips 4012 are between the wedge block 301 and the wedge block 302, the wedge block 301 and the spring clip 4012 are locked, realizing the locking connection between one end of the positioning part 4 and the connecting part 3. At this time, the two limiting blocks 4013 on the positioning ring 4011 enter the slide groove 203 through the notch 202. Rotating the locking sleeve assembly 401 causes the limiting blocks 4013 to move along the slide groove 203, realizing the limiting between the lasso assembly 401 and the extension part 2. The positioning ring 4011 has a receiving cavity that matches the wedge block 301 and the wedge block 302. The receiving cavity is used to receive the wedge block 301 and the wedge block 302.

[0038] The handle 403 and the lasso assembly 401 are fixedly connected by a telescopic spring 402. Two limiting blocks 4031 are provided on the outer wall of the handle 403. A hexagonal groove 4032 is provided at the end of the handle 403 away from the telescopic spring 402. The lasso assembly 401 can be rotated through the handle 403. After rotation, the handle 403 is positioned by being engaged in the slot 204 of the extension part 2 by the limiting blocks 4031.

[0039] The extension part 2 has an internal thread at one end near the bolt part 1, and two slots 204 are provided at the other end of the extension part 2 away from the bolt part 1. The slots 204 are correspondingly provided with the limiting block 4031. One end of the extension part 2 is connected to the bolt part 1 by a thread, and the other end is further limited and fixed by the connecting part 3 and the positioning part 4.

[0040] In this embodiment, the specific usage method is as follows:

[0041] 1. Connect one end of the connecting block 304 on the connecting part 3 to the mating end 103 of the bolt part 1 through a threaded connection to achieve mating, at which time the connecting part 3 and the bolt part 1 are locked;

[0042] 2. Then, the extension part 2, which has the built-in positioning part 4, is connected to the mating end 102 of the bolt part 1 by threaded connection, at which time the extension part 2 and the bolt part 1 are locked.

[0043] 3. The positioning part 4 can move up and down within the extension part 2. The entire positioning part 4 is pushed towards the connecting part 3 by the downward pressing of the handle 403 until the lasso assembly 401 is engaged between the first wedge block 301 and the second wedge block 302. At this time, the positioning part 4 and the connecting part 3 are locked.

[0044] 4. Rotate the lasso assembly 401 so that two limiting blocks 4013 on the outer wall of the positioning ring 4011 enter the sliding groove 203 inside the extension part 2. Then, the limiting block 4031 on the outer wall of the handle 403 is engaged in the slot 204 of the extension part 2. At this time, the positioning part 4 and the extension part 2 are locked.

[0045] In summary, during the downward movement of the locking assembly of the positioning part, the spring block can slide sequentially past wedge block one and engage between wedge block one and wedge block two, thereby locking the positioning part and the connecting part and preventing them from loosening. At the same time, the limiting block one on the locking assembly can enter the sliding groove of the extension part through the notch, and the limiting block two on the handle can also engage with the groove of the extension part, thereby locking the positioning part and the extension part, effectively ensuring the stability and reliability of the splicing bolt during use. When it is necessary to disassemble the splicing bolt, simply move the locking assembly upward, and the spring block can slide upward along wedge block two, allowing the two wedge blocks to slide smoothly out of the positioning ring, thus unlocking. The connecting part, positioning part, and extension part are all detachable structures. By replacing bolt parts of different lengths, different usage scenarios can be adapted. The entire unlocking process is simple to operate, without the need for complex tools or cumbersome operations, greatly improving the installation and disassembly efficiency of the splicing bolt.

[0046] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A splicing bolt, characterized in that: The device includes a bolt part (1), an extension part (2), a connecting part (3), and a positioning part (4). The two ends of the connecting part (3) are connected to the bolt part (1) and the positioning part (4) respectively. The extension part (2) is sleeved on the positioning part (4), and one end of the extension part (2) is threadedly connected to the bolt part (1). The connecting part (3) includes a first wedge block (301), a second wedge block (302), a fixing post (303), and a connecting block (304). The first wedge block (301) and the second wedge block (302) are arranged in a mirror image. The positioning part (4) includes a locking assembly (401). (401) A telescopic spring (402) and a handle (403) are provided at one end away from the connecting part (3). Two annular plates (201) are provided on the inner wall of the extension part (2). Both annular plates (201) have notches (202) and a groove (203) is formed between the two annular plates (201). The bolt part (1) includes a screw (101). The end of the screw (101) near the connecting part (3) is provided with a first mating end (102) and a second mating end (103) in sequence. The first mating end (102) has an external thread and the second mating end (103) has an internal thread.

2. The splicing bolt according to claim 1, characterized in that: The upper and lower ends of the fixed post (303) are fixedly connected to the first wedge block (301) and the connecting block (304) respectively. The second wedge block (302) is sleeved on the fixed post (303) and movably connected to it. The connecting block (304) has an external thread that matches the second docking end (103).

3. The splicing bolt according to claim 1, characterized in that: The locking assembly (401) includes a positioning ring (4011), and two spring blocks (4012) are embedded near the lower end of the first wedge block (301). The two spring blocks (4012) are tangent to the outer walls of the first wedge block (301) and the second wedge block (302).

4. A splicing bolt according to claim 3, characterized in that: The outer wall of the positioning ring (4011) is also provided with two limiting blocks (4013), the two limiting blocks (4013) are matched with the notch (202) and the slide (203), and the positioning ring (4011) has a receiving cavity that matches the wedge block (301) and the wedge block (302).

5. A splicing bolt according to claim 1, characterized in that: The rod handle (403) and the locking assembly (401) are fixedly connected by a telescopic spring (402). Two limiting blocks (4031) are provided on the outer wall of the rod handle (403). A hexagonal groove (4032) is provided at the end of the rod handle (403) away from the telescopic spring (402).

6. A splicing bolt according to claim 5, characterized in that: The extension (2) has an internal thread at one end near the bolt (1), and two slots (204) are provided at the other end of the extension (2) away from the bolt (1). The slots (204) are correspondingly provided with the second limiting block (4031).

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