Combined bolt device

Abstract

The utility model discloses a combined bolt device, and belongs to the technical field of bolts. The anti-loosening bolt device overcomes the defect that in the prior art, a traditional bolt device is poor in anti-loosening performance. The main body structure of the bolt comprises a bolt head assembly and a nut assembly which are matched with each other, the bolt head assembly comprises an installation bolt head, a standby bolt head connected with one end of the installation bolt head and a connecting base connected with one end of the standby bolt head, and the connecting base is provided with a threaded section and an inserting groove formed in the axial direction of the connecting base; the slot transversely penetrates through the connecting seat and divides the threaded section into two groups; the nut assembly comprises a threaded block matched with the connecting base, and a threaded groove matched with the threaded section and an inserting piece matched with the inserting groove are arranged in the middle of the threaded block. The utility model is mainly used for mechanical connection.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolts, and more particularly, to a combined bolt device. Background Art

[0002] In the existing mechanical connection technology field, bolt connection is a very common fixing method. The traditional bolt structure mainly includes two parts: a bolt and a nut. The connection is achieved by passing the bolt through the component to be connected and then tightening it with the nut. However, in the actual application process, there are some deficiencies in the traditional bolt connection method.

[0003] Firstly, it is difficult to disassemble the traditional bolt connection method, especially when the bolt has been used for a long time and is difficult to disassemble due to rust or wear. Secondly, since the bolt and the nut are usually independent components, they are easily lost or mismatched during the assembly process, especially in a complex assembly environment. In addition, the traditional bolt connection method often cannot provide sufficient anti-loosening function. Especially in a vibrating environment, the bolt will gradually loosen due to vibration, thus affecting the connection safety.

[0004] For example, the Chinese utility model patent with the authorization announcement number CN 220268168 U discloses a bolt device. By installing the bolt on the equipment or facility to be fixed, and at the same time sleeving the fixed shell on the end of the screw rod far from the bolt head, and then installing the gasket and nut on the screw rod inside the fixed shell, an effective fixation is formed while effectively fixing the fixed shell. Finally, through the blocking mechanism, situations such as nut loosening and falling off can be avoided. However, its deficiencies are as follows: This bolt device realizes the fixation and anti-falling effect of the bolt by setting the gasket, nut and blocking mechanism. However, due to the influence of the blocking mechanism on the position of the screw rod when the bolt is used, the length of the screw rod needs to be customized according to requirements, which makes the bolt inconvenient to use. And when the bolt is relatively small, the connection between the sealing cover and the card slot is difficult, so the practicability of this bolt device is poor. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a combined bolt device.

[0006] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0007] A combined bolt device includes a bolt head assembly and a nut assembly that cooperate with each other. The bolt head assembly includes a mounting bolt head, a spare bolt head connected to one end of the mounting bolt head, and a connecting seat connected to one end of the spare bolt head. A threaded section and a slot extending along the axial direction of the connecting seat are provided on the connecting seat. The slot transversely penetrates the connecting seat and divides the threaded section into two groups. The nut assembly includes a threaded block that cooperates with the connecting seat. A threaded groove that cooperates with the threaded section and a inserting piece that cooperates with the slot are provided in the middle of the threaded block.

[0008] Preferably, a rotating groove is further provided on one side of the threaded groove. A rotating wheel and a rotating shaft are provided in the rotating groove. The rotating wheel slides in the rotating groove. Both ends of the rotating shaft are respectively connected to the rotating wheel and the inserting piece.

[0009] Preferably, one end of the inserting piece extending out of the threaded block is connected with a connecting piece. The connecting piece can be inserted into the slot and cooperate with the slot.

[0010] Preferably, an extending piece is provided on the side surface of the connecting piece.

[0011] Preferably, a locking block for preventing the threaded block from falling off is provided on the side surface of the extending piece.

[0012] Preferably, both the rotating wheel and the rotating shaft are provided in two places, and the two rotating wheels and the rotating shaft are symmetrically arranged at both ends of the inserting piece.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By the mounting bolt head and the spare bolt head, the contact area between the bolt head and the outside of the mounting hole is enhanced, the stability of the bolt during use is improved. At the same time, when the mounting bolt head or the spare bolt head is worn, the separation or installation of the bolt can still be achieved through the mounting bolt head or the spare bolt head on the other side, avoiding the situation that the bolt is difficult to separate, achieving the effect of extending the service life of the bolt device, and making the present utility model more practical.

[0015] 2. By providing the rotating groove, it is convenient to avoid affecting the rotation of the threaded block on the threaded section when the inserting piece is inserted into the slot, realizing the positioning of the connecting piece and the extending piece while connecting the threaded block and the threaded section, making the use of the bolt device more convenient and fast, and there is no need to customize the length of the bolt during use, further enhancing the practicality of the present utility model.

[0016] 3. The extending piece and the locking block are fixedly connected in a centrally symmetric manner on both sides of the connecting piece, and the locking block overlaps with the outside of the threaded section. Through the engagement of the locking block on one side of the extending piece with the outside of the threaded section, it is convenient to prevent the threaded block from loosening and falling off, and it is also convenient to protect the outside of the threaded section.

[0017] 4. Use tools such as pliers to press the extension piece along the thread direction of the threaded section to twist it into an S shape, and make the locking block engage with the thread on the outer side of the threaded section, so as to prevent the threaded block from loosening, falling off, etc., and also facilitate the protection of the outer side of the threaded section, reducing the situation where it is difficult to separate the threaded block from the threaded section due to damage to the threaded section, thus making the bolt device have a longer service life;

[0018] In summary, the utility model improves the stability and safety of the connection structure, is also conducive to subsequent maintenance work, prevents the threaded block from loosening, falling off, etc., and extends the service life of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic cross-sectional structure diagram of the utility model;

[0020] Figure 2 is a schematic structure diagram of the bolt head assembly in the utility model;

[0021] Figure 3 is a front view of the utility model in the installation and use state;

[0022] Figure 4 is Figure 1 a partial enlarged view of part A in;

[0023] Figure 5 is a right view of the utility model during installation and use.

[0024] In the figure: 1. Installation bolt head; 2. Spare bolt head; 3. Connection seat; 4. Threaded section; 5. Slot; 6. Threaded block; 7. Thread groove; 8. Rotation groove; 9. Rotation wheel; 10. Rotation shaft; 11. Insertion piece; 12. Connection piece; 13. Extension piece; 14. Locking block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the utility model through specific embodiments in conjunction with the drawings.

[0026] Embodiment 1:

[0027] As Figures 1-5 shown, a combined bolt device includes a bolt head assembly and a nut assembly that cooperate with each other. The bolt head assembly includes an installation bolt head 1, a spare bolt head 2 connected to one end of the installation bolt head 1, and a connection seat 3 connected to one end of the spare bolt head 2. A threaded section 4 and a slot 5 arranged along the axial direction of the connection seat 3 are provided on the connection seat 3. The slot 5 runs through the connection seat 3 horizontally and divides the threaded section 4 into two groups; the nut assembly includes a threaded block 6 that cooperates with the connection seat 3. A thread groove 7 that cooperates with the threaded section 4 and an insertion piece 11 that cooperates with the slot 5 are provided in the middle of the threaded block 6.

[0028] Specifically, the connecting seat 3 is fixedly connected to the side of the spare bolt head 2 away from the mounting bolt head 1, which is convenient for extending the service life of the bolt head; the threaded sections 4 are symmetrically fixedly connected to both sides of the connecting seat 3, and a slot 5 is formed between the two groups of threaded sections 4, which is convenient for positioning the slot 5.

[0029] Embodiment 2:

[0030] A combined bolt device, which is different from that of Embodiment 1 in that a rotating groove 8 is further opened on one side of the threaded groove 7. A rotating wheel 9 and a rotating shaft 10 are arranged in the rotating groove 8. The rotating wheel 9 slides in the rotating groove 8, and both ends of the rotating shaft 10 are respectively connected to the rotating wheel 9 and the inserting piece 11. One end of the inserting piece 11 extending out of the threaded block 6 is connected with a connecting piece 12, and the connecting piece 12 can be inserted into the slot 5 and cooperate with the slot 5; an extension piece 13 is arranged on the side surface of the connecting piece 12. A locking block 14 for preventing the threaded block 6 from falling off is arranged on the side surface of the extension piece 13.

[0031] Specifically, the rotating groove 8 is opened on one side of the threaded block 6 close to the spare bolt head 2, which is convenient for positioning the inserting piece 11; one end of the inserting piece 11 away from the rotating wheel 9 passes through the threaded block 6 and is fixedly connected to the connecting piece 12, which is convenient for fixing the connecting piece 12; the extension piece 13 and the locking block 14 are symmetrically fixedly connected to both sides of the connecting piece 12, and the locking block 14 overlaps with the outer side of the threaded section 4 to prevent the threaded block 6 from loosening and falling off.

[0032] Both the rotating wheel 9 and the rotating shaft 10 are provided with two places, and the two rotating wheels 9 and the rotating shaft 10 are symmetrically arranged at both ends of the inserting piece 11. Specifically, the rotating wheel 9 and the rotating shaft 10 are symmetrically arranged on both sides of the end of the inserting piece 11, and the two groups of rotating wheels 9 are slidably connected to the middle of the rotating groove 8 to prevent the inserting piece 11 from affecting the rotation of the threaded block 6.

[0033] The working principle of the present utility model is as follows:

[0034] As Figure 3 、 Figure 5 shown, first, align the inserting piece 11 in the middle of the threaded block 6 with the slot 5 on the connecting seat 3;

[0035] Secondly, by rotating the threaded block 6, the mounting bolt head 1 or the spare bolt head 2, the threaded block 6 drives the threaded groove 7 to be threadedly connected with the threaded section 4. At this time, the inserting piece 11 and the connecting piece 12 slide in the slot 5 on one side of the connecting seat 3, and the rotating wheel 9 at the end of the rotating shaft 10 rotates in the rotating groove 8;

[0036] Finally, after the threaded block 6 is rotated to a proper position, use tools such as pliers to press the extension piece 13 along the thread direction of the threaded section 4 to make it into an S shape, and make the locking block 14 engage with the thread of the threaded section 4 to achieve the effect of preventing loosening and falling off.

Claims

1. A combined bolt device, comprising a bolt head assembly and a nut assembly that cooperate with each other, characterized in that: The bolt head assembly includes a mounting bolt head (1), a spare bolt head (2) connected to one end of the mounting bolt head (1), and a connecting seat (3) connected to one end of the spare bolt head (2). A threaded section (4) and a slot (5) arranged along the axial direction of the connecting seat (3) are provided on the connecting seat (3). The slot (5) transversely penetrates the connecting seat (3) and divides the threaded section (4) into two groups; the nut assembly includes a threaded block (6) that cooperates with the connecting seat (3). A threaded groove (7) that cooperates with the threaded section (4) and a inserting piece (11) that cooperates with the slot (5) are provided in the middle of the threaded block (6).

2. The combined bolt device according to claim 1, characterized in that: A rotating groove (8) is further opened on one side of the threaded groove (7). A rotating wheel (9) and a rotating shaft (10) are arranged in the rotating groove (8). The rotating wheel (9) slides in the rotating groove (8). Two ends of the rotating shaft (10) are respectively connected to the rotating wheel (9) and the inserting piece (11).

3. The combined bolt device according to claim 2, characterized in that: One end of the inserting piece (11) extending out of the threaded block (6) is connected with a connecting piece (12). The connecting piece (12) can be inserted into the slot (5) and cooperate with the slot (5).

4. The combined bolt device according to claim 3, characterized in that: An extension piece (13) is arranged on the side surface of the connecting piece (12).

5. The combined bolt device according to claim 4, characterized in that: A locking block (14) for preventing the threaded block (6) from falling off is arranged on the side surface of the extension piece (13).

6. The combined bolt device according to any one of claims 2-5, characterized in that: Both the rotating wheel (9) and the rotating shaft (10) are provided in two places, and the two rotating wheels (9) and the rotating shafts (10) are symmetrically arranged at both ends of the inserting piece (11).

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