CN223203431U - Lock catch involution type expansion bolt - Google Patents
Lock catch involution type expansion boltInfo
- Publication number
- CN223203431U CN223203431U CN202422865937.7U CN202422865937U CN223203431U CN 223203431 U CN223203431 U CN 223203431U CN 202422865937 U CN202422865937 U CN 202422865937U CN 223203431 U CN223203431 U CN 223203431U
- Authority
- CN
- China
- Prior art keywords
- bolt
- bolt body
- nut
- end cover
- lock pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
本实用新型涉及膨胀螺栓技术领域，尤其涉及一种锁扣对合式膨胀螺栓，包括螺栓身，所述螺栓身为圆柱结构，螺栓身的表面开设有外螺纹，所述螺栓身的一端设置有螺栓头，螺栓头与螺栓身为一体式结构，螺栓头为六角结构，所述螺栓身的表面上设置有螺母，螺母与外螺纹相互螺纹对接；所述螺栓身的一端设置有端盖，端盖的内侧与螺栓身的端部滑动套接设置。通过螺栓身与螺栓头配合，可形成一个螺栓本体结构，通过其上的外螺纹，可在与相邻两个需要紧固的物体进行贯穿安装时，可与其内填充的膨胀套进行膨胀安装，实现膨胀螺栓的紧固效果，然后，为了进一步的保证安装的紧固效果，通过螺母与外螺纹对接，可实现两端对合稳定。
The utility model relates to the technical field of expansion bolts, and in particular to a locking expansion bolt, comprising a bolt body, wherein the bolt body is a cylindrical structure, an external thread is provided on the surface of the bolt body, a bolt head is provided at one end of the bolt body, the bolt head and the bolt body are an integrated structure, the bolt head is a hexagonal structure, a nut is provided on the surface of the bolt body, and the nut and the external thread are threadedly connected to each other; an end cap is provided at one end of the bolt body, and the inner side of the end cap is slidably connected with the end of the bolt body. A bolt body structure can be formed by cooperating with the bolt body and the bolt head, and the external thread thereon can be used to expand the expansion sleeve filled therein when it is installed through two adjacent objects to be fastened, thereby achieving the fastening effect of the expansion bolt. Then, in order to further ensure the fastening effect of the installation, the nut is connected to the external thread to achieve stable fastening at both ends.
Description
Technical Field
The utility model relates to the technical field of expansion bolts, in particular to a locking-buckling type expansion bolt.
Background
The fastening bolts are generally made of high-strength materials such as carbon steel, alloy steel, stainless steel, etc., and can withstand large tensile and shearing forces. The fastening bolts can provide a reliable connection, ensuring stability and safety of the structure or the apparatus.
The fastening bolt can be quickly installed through simple tools (such as a spanner and a screwdriver), so that time and labor are saved. When the parts are required to be maintained or replaced, the fastening bolts can be easily detached, and subsequent operation is convenient.
According to the fastening bolt of the disclosure CN204458744U, including bolt head and screw rod, all be equipped with the screw hole on bolt head and the screw rod, the screw thread direction of screw hole is opposite with the screw thread direction of screw rod, the screw rod is including being the first half screw rod and the second half screw rod that the separation set up, threaded hole threaded connection has movable rod, the movable rod is equipped with the tight piece in top of round platform form for the one end of bolt head. The utility model has the advantages that the diameter of the screw is enlarged by the movable rod arranged in the screw, the loosening of the bolt is prevented more effectively, and the operation is convenient.
At present, when a conventional bolt is used, in order to ensure that the conventional bolt has a good fastening effect after penetrating through two combined objects, an expansion sleeve is required to be arranged in an opening of the combined object, and then a nut structure is added at the end part of the bolt for matching and locking, but the conventional bolt is used for a long time, because the combined object penetrated by the bolt has the conditions of vibration, expansion due to heat and contraction due to cold, the nut and the bolt are easy to loosen, and the fixed installation of the structure is influenced.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a locking butt expansion bolt.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the design of the locking butt-joint expansion bolt comprises a bolt body, wherein the bolt body is of a cylindrical structure, external threads are formed in the surface of the bolt body, a bolt head is arranged at one end of the bolt body, the bolt head and the bolt body are of an integrated structure, the bolt head is of a hexagonal structure, a nut is arranged on the surface of the bolt body, and the nut and the external threads are in mutual thread butt joint;
The screw bolt is characterized in that an end cover is arranged at one end of the screw bolt body, the inner side of the end cover is in sliding sleeve connection with the end part of the screw bolt body, a connecting plate is fixedly arranged on the outer ring wall of the end cover, a threaded rod is fixedly arranged on one side of the connecting plate, a threaded cylinder is in threaded butt joint with the surface of the threaded rod, a squeezing block is fixedly arranged at the other end of the threaded cylinder, and one side of the squeezing block is in tight fit with the end face of the nut.
In detail, the inside of bolt body is seted up flutedly, and the inside of recess is provided with the lockpin, and the lockpin cup joints the setting with the recess mutual slip, and the terminal surface of lockpin is the cambered surface structure, and the lockpin can directly operate through the hand pressure mode, can be convenient for the swift assembly of end cover and bolt body.
In detail, the inside of recess is provided with the spring, and the both ends of spring are fixed assembly with the surface of lockpin and the internal wall face of recess respectively, and the spring is balanced state, can guarantee the flexible reset stability of lockpin.
In detail, the surface of the end cover is provided with a through hole penetrating through the end cover, the lock pin and the through hole are arranged in a sliding penetrating mode, and the end part of the end cover and the end part of the bolt body can form a locking structure through butt joint of the lock pin and the through hole, so that stable clamping connection is realized.
In detail, the terminal surface of extrusion piece is circular structure, and is made by hard rubber material, can be when screw thread section of thick bamboo supports real setting to the nut, can play the effect that a transition was linked up.
In detail, the part of the bolt body sleeved with the end cover is of a smooth surface structure, the smooth surface outer diameter of the end part of the bolt body is smaller than the screw outer diameter of the external thread, and the normal butt joint of the nut and the external thread can be ensured.
In detail, the end cover, the connecting plate, the threaded rod and the threaded cylinder are all made of aluminum alloy materials, have enough structural strength, and simultaneously have good corrosion resistance.
The design scheme provided by the utility model has the beneficial effects that in the application process:
1. The bolt body is matched with the bolt head to form a bolt body structure, the external threads on the bolt body structure can be used for performing expansion installation with an expansion sleeve filled in the bolt body when penetrating installation is performed on two adjacent objects to be fastened, so that the fastening effect of the expansion bolt is realized, and then, in order to further ensure the fastening effect of installation, the two ends are butted and stable through the butt joint of the nuts and the external threads;
2. When the installation stability of nut and bolt needs further improvement, adjust through the tip of end cover and bolt body to the adjustment position, make the position of lockpin correspond with the position of via hole, reset effect through the spring makes the lockpin can pass through the hole and set up, can realize the fixed of end cover and bolt body tip, then, through rotating the screw thread section of thick bamboo, make the screw thread section of thick bamboo can remove with the mutual screw thread of threaded rod, thereby drive extrusion piece and nut terminal surface contact, can realize supporting real supplementary effect of fastening.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the detent position of the present utility model;
FIG. 3 is a schematic diagram of the front structure of the present utility model;
fig. 4 is an enlarged schematic view at a of the present utility model.
In the figure, 1, a bolt body, 11, external threads, 12, a bolt head, 13, a nut, 14, an end cover, 15, an engagement plate, 16, a threaded rod, 17, a threaded cylinder, 18, an extrusion block, 2, a groove, 21, a lock pin, 22, a spring, 23 and a through hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, a locking butt-joint expansion bolt comprises a bolt body 1, wherein the bolt body 1 is of a cylindrical structure, external threads 11 are formed on the surface of the bolt body 1, a bolt head 12 is arranged at one end of the bolt body 1, the bolt head 12 and the bolt body 1 are of an integrated structure, the bolt head 12 is of a hexagonal structure, a nut 13 is arranged on the surface of the bolt body 1, and the nut 13 is in mutual thread butt joint with the external threads 11;
One end of the bolt body 1 is provided with an end cover 14, the inner side of the end cover 14 is in sliding sleeve connection with the end part of the bolt body 1, a joint plate 15 is fixedly arranged on the outer ring wall of the end cover 14, a threaded rod 16 is fixedly arranged on one side of the joint plate 15, a threaded cylinder 17 is in threaded butt joint with the surface of the threaded rod 16, an extrusion block 18 is fixedly arranged on the other end of the threaded cylinder 17, one side of the extrusion block 18 is in tight fit with the end surface of the nut 13, and the threaded cylinder 17 is rotated to enable the threaded cylinder 17 to move with the threaded rod 16 in a threaded manner to drive the extrusion block 18 to be in contact with the end surface of the nut 13, so that the effect of supporting auxiliary fastening can be achieved.
It should be further noted that the inside of the bolt body 1 is provided with the groove 2, the inside of the groove 2 is provided with the lock pin 21, the lock pin 21 and the groove 2 are in sliding sleeve connection with each other, the end face of the lock pin 21 is of a cambered surface structure, the lock pin 21 can be directly operated in a hand-pressing manner, and the end cover 14 and the bolt body 1 can be conveniently and rapidly assembled.
It should be further noted that, the inside of the groove 2 is provided with a spring 22, two ends of the spring 22 are fixedly assembled with the surface of the lock pin 21 and the inner wall surface of the groove 2 respectively, and the spring 22 is in a balanced state, so that the telescopic reset stability of the lock pin 21 can be ensured.
It should be further noted that, the surface of the end cover 14 is provided with a through hole 23 penetrating through the surface, the lock pin 21 and the through hole 23 are slidably penetrating through the surface, and the end of the end cover 14 and the end of the bolt body 1 can form a locking structure through the butt joint of the lock pin 21 and the through hole 23, so that the locking is stable.
It should be further noted that, the end face of the extrusion block 18 has a circular structure and is made of a hard rubber material, so that an effect of transition connection can be achieved when the screw barrel 17 is used for setting the nut 13 in a solid state.
It should be further noted that, the portion of the bolt body 1 sleeved with the end cover 14 is in a smooth surface structure, the smooth surface outer diameter of the end part of the bolt body 1 is smaller than the spiral outer diameter of the external thread 11, and normal butt joint of the nut 13 and the external thread 11 can be ensured.
It should be further noted that the end cap 14, the engagement plate 15, the threaded rod 16 and the threaded cylinder 17 are all made of aluminum alloy materials, and have sufficient structural strength, and at the same time, can have good corrosion resistance.
When the bolt is required to be used, a bolt body structure can be formed by matching the bolt body 1 with the bolt head 12, and when the bolt is installed in a penetrating way with two adjacent objects to be fastened, the bolt body structure can be expanded and installed with an expansion sleeve filled in the bolt body through external threads 11 on the bolt body structure to realize the fastening effect of the expansion bolt, and then, in order to further ensure the fastening effect of the installation, the bolt body structure can be butted with the external threads 11 through nuts 13 to realize the butt joint stability of two ends;
When the installation stability of the nut 13 and the bolt needs to be further improved, the end parts of the end cover 14 and the bolt body 1 are adjusted, and the positions are adjusted, so that the positions of the lock pins 21 can correspond to the positions of the through holes 23, the lock pins 21 can penetrate through the holes 23 to be arranged through the reset effect of the springs 22, the end parts of the end cover 14 and the bolt body 1 can be fixed, then, the threaded cylinder 17 can move with the threaded rod 16 in a threaded manner through rotating the threaded cylinder 17, and the extrusion block 18 is driven to be in end surface contact with the nut 13, so that the effect of supporting auxiliary fastening can be realized.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The lock catch involution type expansion bolt comprises a bolt body (1) and is characterized in that the bolt body (1) is of a cylindrical structure, external threads (11) are formed in the surface of the bolt body (1), a bolt head (12) is arranged at one end of the bolt body (1), the bolt head (12) and the bolt body (1) are of an integrated structure, the bolt head (12) is of a hexagonal structure, a nut (13) is arranged on the surface of the bolt body (1), and the nut (13) and the external threads (11) are in mutual thread butt joint;
One end of the bolt body (1) is provided with an end cover (14), the inner side of the end cover (14) is in sliding sleeve connection with the end part of the bolt body (1), a joint plate (15) is fixedly arranged on the outer ring wall of the end cover (14), one side of the joint plate (15) is fixedly provided with a threaded rod (16), the surface threads of the threaded rod (16) are in butt joint with a threaded cylinder (17), the other end of the threaded cylinder (17) is fixedly provided with an extrusion block (18), and one side of the extrusion block (18) is in tight fit with the end face of the nut (13).
2. The buckling type expansion bolt according to claim 1, wherein the inside of the bolt body (1) is provided with a groove (2), a lock pin (21) is arranged in the groove (2), the lock pin (21) and the groove (2) are in sliding sleeve connection, and the end face of the lock pin (21) is of an arc face structure.
3. The buckling type expansion bolt according to claim 2, wherein a spring (22) is arranged in the groove (2), and two ends of the spring (22) are fixedly assembled with the surface of the lock pin (21) and the inner wall surface of the groove (2) respectively.
4. A snap-close expansion bolt according to claim 3, wherein the surface of the end cap (14) is provided with a through hole (23) penetrating the inside thereof, and the lock pin (21) and the through hole (23) are arranged in a sliding penetrating manner.
5. The expansion bolt according to claim 1, wherein the end face of the pressing block (18) is circular and made of hard rubber material.
6. The expansion bolt with the locked joint as claimed in claim 1, wherein the part of the bolt body (1) sleeved with the end cover (14) is of a smooth surface structure.
7. The locking-joint type expansion bolt according to claim 1, wherein the end cover (14), the connecting plate (15), the threaded rod (16) and the threaded cylinder (17) are all made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422865937.7U CN223203431U (en) | 2024-11-25 | 2024-11-25 | Lock catch involution type expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422865937.7U CN223203431U (en) | 2024-11-25 | 2024-11-25 | Lock catch involution type expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223203431U true CN223203431U (en) | 2025-08-08 |
Family
ID=96603737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422865937.7U Active CN223203431U (en) | 2024-11-25 | 2024-11-25 | Lock catch involution type expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223203431U (en) |
-
2024
- 2024-11-25 CN CN202422865937.7U patent/CN223203431U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |