Foundation bolt capable of preventing disassembly and assembly
By designing anti-disassembly anchor bolts and utilizing rotating connections and spring/torsion spring structures to achieve automatic opening and fixing of the protective shell, the problem of anchor bolt corrosion under rainwater is solved, thus improving the reliability of the equipment.
Patent Information
- Application Number
- CN202520843182.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-29
AI Technical Summary
When anchor bolts are exposed to the outdoor environment for a long time, rainwater can cause corrosion on the threaded surface, affecting normal use.
An anti-disassembly anchor bolt was designed, including the anchor bolt body, base plate, rotating block, rotating rod and protective shell. The protective shell can be automatically opened and fixed by rotating connection and spring, torsion spring and other structures to prevent rainwater from contacting the threaded surface.
It effectively prevents rainwater from contacting the threaded surface, avoids rust, and improves the practicality and service life of the equipment.
Smart Images

Figure CN223895503U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anchor bolt technology, and in particular to an anchor bolt that is resistant to disassembly. Background Technology
[0002] Anti-disassembly anchor bolts are special fasteners designed to prevent anchor bolts from being arbitrarily disassembled. They are typically used in situations where there are high safety requirements for fixing equipment or structures. Based on ordinary anchor bolts, they have added special anti-disassembly structures or devices. For example, some have barbs or ratchet teeth on the bolt, while others are equipped with special nuts or locking devices. These designs make it difficult for the bolts to be disassembled by conventional tools or methods after installation. However, since anchor bolts are exposed to the outdoor environment for a long time, rainwater can cause corrosion on the threaded surface of the anchor bolts, thus affecting their normal use.
[0003] Regarding the above and existing related technologies, the inventor believes that the following defects often exist: because the anchor bolt body is exposed to the external environment for a long time, rainwater will splash onto the surface of the anchor bolt body when it rains, causing corrosion on the threaded surface of the anchor bolt body, thus causing the anchor bolt body to be unable to be used normally; therefore, in order to solve the above problems, an anti-disassembly anchor bolt is proposed. Summary of the Invention
[0004] The purpose of this invention is to solve the problem in the prior art where rainwater gets on the surface of the anchor bolt body, causing corrosion on the threaded surface of the anchor bolt body, thus rendering the anchor bolt body unusable. Therefore, this invention proposes an anchor bolt that is resistant to disassembly.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an anti-disassembly anchor bolt, comprising an anchor bolt body, a base plate rotatably connected to the surface of the anchor bolt body, two rotating blocks fixedly connected to the surface of the base plate, a rotating rod rotatably connected to the side of the two rotating blocks that are close to each other, and a protective shell fixedly connected to the arc surface of the rotating rod.
[0006] The aforementioned components achieve the following effect: they protect the anchor bolt body, preventing it from being exposed to the external environment for extended periods. This prevents rainwater from reaching the anchor bolt body and causing corrosion on the threaded surface, which could render the anchor bolt body unusable and improves the equipment's practicality.
[0007] Preferably, two square blocks are fixedly connected to the surface of the base plate, and a rod is slidably inserted into the square block. Two slots are opened on the surface of the protective shell.
[0008] The aforementioned components achieve the following effect: they can fix the protective shell in place, preventing the protective shell from rotating when subjected to external impact, which would cause the protective shell to open passively and reduce its protective effect.
[0009] Preferably, one end of the insertion rod has a groove, and an operating block is fixedly connected to the surface of the groove.
[0010] The above-mentioned components achieve the following effect: the operating block facilitates the operation of the staff to pull the plug rod, and avoids the situation where the staff's hands slip due to the smooth arc surface of the plug rod when they need to periodically open the protective shell to inspect the anchor bolt body, thus making it difficult for the staff to open the protective shell.
[0011] Preferably, the arc surface of the insertion rod is fitted with a spring, and the two ends of the spring are fixedly connected to the operating block and the square block, respectively.
[0012] The effect achieved by the above components is that the spring's rebound force automatically inserts the plug into the slot, while also restricting the movement of the plug and improving the stability of the plug when it is fixed to the protective shell.
[0013] Preferably, the arc surface of the rotating rod is fitted with two torsion springs, and the two ends of the torsion springs are fixedly connected to the rotating block and the protective shell, respectively.
[0014] The effect achieved by the above components is that the torsion spring's torque automatically opens the protective shell while keeping it open, thus facilitating workers' inspection of the anchor bolts.
[0015] Preferably, the surface of the protective shell is provided with a fixing groove, and a protective pad is fixedly connected to the surface of the fixing groove of the protective shell.
[0016] The effect achieved by the above components is that the protective pad can protect the protective shell, avoiding direct contact between the protective shell and the base plate surface, preventing the protective shell from making hard contact with the base plate, which could lead to cracking or damage to the protective shell and cause it to become unusable.
[0017] In summary, the beneficial effects of this utility model are as follows:
[0018] 1. This utility model achieves the effect of protecting the anchor bolt body, avoiding the anchor bolt body from being exposed to the external environment for a long time. When it rains, rainwater will splash onto the surface of the anchor bolt body, causing the thread surface of the anchor bolt body to rust, thus making the anchor bolt body unable to be used normally, thereby improving the practicality of the equipment. Attached Figure Description
[0019] Figure 1This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the protective shell in this utility model;
[0021] Figure 3 In this utility model Figure 2 Enlarged view of point A;
[0022] Figure 4 In this utility model Figure 2 Partial structural diagram;
[0023] Figure 5 This is a schematic diagram of the structure of the protective pad in this utility model.
[0024] Legend: 1. Anchor bolt body; 2. Base plate; 3. Rotating block; 4. Rotating rod; 5. Protective shell; 6. Square block; 7. Insert rod; 8. Slot; 9. Operating block; 10. Spring; 11. Torsion spring; 12. Protective pad. Detailed Implementation
[0025] Reference Figures 1-5As shown, this utility model provides a technical solution: an anti-disassembly anchor bolt, including an anchor bolt body 1, a base plate 2 rotatably connected to the surface of the anchor bolt body 1, two rotating blocks 3 fixedly connected to the surface of the base plate 2, a rotating rod 4 rotatably connected to the side of the two rotating blocks 3 that are close to each other, and a protective shell 5 fixedly connected to the arc surface of the rotating rod 4, achieving the effect of protecting the anchor bolt body 1, avoiding the anchor bolt body 1 from being exposed to the external environment for a long time, and preventing rainwater from getting on the surface of the anchor bolt body 1, causing the thread surface of the anchor bolt body 1 to rust, thus causing the anchor bolt body 1 to malfunction, improving the practicality of the equipment. Two square blocks 6 are fixedly connected to the surface of the base plate 2, and the square blocks 6 contain... The protective shell 5 has a sliding insert rod 7 and two slots 8 on its surface. When the worker needs to use the protective shell 5 to protect the anchor bolt body 1, they pull the insert rod 7, which slides within the square block 6. When the insert rod 7 moves to the appropriate position, the protective shell 5 is rotated, causing the rotating rod 4 to rotate. When the protective shell 5 rotates to the surface of the anchor bolt body 1, it can protect the anchor bolt body 1. Pushing the insert rod 7, when it is inserted into the surface of the slot 8, the insert rod 7 can fix the protective shell 5, achieving the effect of fixing the protective shell 5. This prevents the protective shell 5 from rotating when subjected to external impact, which would cause it to open passively and reduce its protective effect. One end of the insert rod 7 has a groove, and the surface of the groove of the insert rod 7... An operating block 9 is fixedly connected to the surface of the protective shell 5. When the operator needs to open the protective shell 5, they pull the operating block 9, which causes the insertion rod 7 to slide within the square block 6. When the insertion rod 7 is completely disengaged from the surface of the slot 8, it releases its fixation to the protective shell 5, allowing the operator to open it. The operating block 9 facilitates the operator's pulling of the insertion rod 7, preventing the operator from slipping due to the smooth arc surface of the insertion rod 7 when periodically opening the protective shell 5 to inspect the anchor bolt body 1, thus avoiding difficulty in opening the protective shell 5. A spring 10 is fitted onto the arc surface of the insertion rod 7, with both ends of the spring 10 fixedly connected to the operating block 9 and the square block 6, respectively. When the operator pulls the operating block 9, the spring 10... When spring 10 is stretched, operating block 9 moves insertion rod 7 until it reaches the appropriate position. At this point, the operator can rotate protective shell 5 onto the surface of anchor bolt body 1 and release operating block 9. The rebound force of spring 10 moves operating block 9, which in turn moves insertion rod 7 until it is inserted into the surface of slot 8. The rebound force of spring 10 achieves the effect of automatically inserting insertion rod 7 into slot 8, while also restricting the movement of insertion rod 7, thus improving the stability of insertion rod 7 when fixing protective shell 5. Two torsion springs 11 are sleeved on the arc surface of rotating rod 4. The two ends of torsion springs 11 are fixedly connected to rotating block 3 and protective shell 5, respectively. When the operator needs to open protective shell 5, they pull operating block 9, stretching spring 10 and moving insertion rod 7.When the insertion rod 7 is completely disengaged from the surface of the slot 8, the insertion rod 7 releases its fixation to the protective shell 5. The torque of the torsion spring 11 drives the protective shell 5 to rotate, which in turn drives the rotating rod 4 to rotate until the protective shell 5 is fully open. The torque of the torsion spring 11 achieves the effect of automatically opening the protective shell 5 while keeping it open, thus facilitating the inspection of the anchor bolt body 1 by the staff. The surface of the protective shell 5 has a fixing groove, and a protective pad 12 is fixedly connected to the surface of the fixing groove. When the torque of the torsion spring 11 drives the protective shell 5 to rotate, the protective shell 5 drives the rotating rod 4 to rotate, which in turn drives the protective pad 12 to rotate until the protective pad 12 contacts the surface of the base plate 2. At this point, the protective shell 5 is fully open, and the protective pad 12 achieves the effect of protecting the protective shell 5, preventing the protective shell 5 from directly contacting the surface of the base plate 2 and making hard contact with the base plate 2, which could lead to the protective shell 5 cracking or being damaged, thus rendering the protective shell 5 unusable.
[0026] Working principle: When the worker needs to use the protective shell 5 to protect the anchor bolt body 1, pulling the operating block 9 stretches the spring 10. The operating block 9 moves the insertion rod 7, which slides within the square block 6. When the insertion rod 7 moves to the appropriate position, the protective shell 5 is rotated, causing the rotating rod 4 to rotate. When the protective shell 5 rotates to the surface of the anchor bolt body 1, it can protect the anchor bolt body 1. At this time, the insertion rod 7 is directly in front of the slot 8. Releasing the operating block 9 causes the spring 10 to return, moving the operating block 9 and the insertion rod 7. When the insertion rod 7 is inserted into the surface of the slot 8, it can fix the protective shell 5. When the worker needs to open the protective shell 5... Pulling the operating block 9 stretches the spring 10, causing the operating block 9 to move the insertion rod 7. When the insertion rod 7 is completely disengaged from the surface of the slot 8, the insertion rod 7 releases its fixation to the protective shell 5. The torque of the torsion spring 11 causes the protective shell 5 to rotate, which in turn causes the rotating rod 4 to rotate. The protective shell 5 then causes the protective pad 12 to rotate until the protective pad 12 contacts the surface of the base plate 2. At this point, the protective shell 5 is fully open, thus achieving the effect of protecting the anchor bolt body 1. This prevents the anchor bolt body 1 from being exposed to the external environment for a long time, and avoids rainwater from splashing onto the surface of the anchor bolt body 1 during rain, which could cause corrosion on the threaded surface of the anchor bolt body 1 and prevent the anchor bolt body 1 from being used normally.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.
Claims
1. A type of anti-disassembly anchor bolt, comprising an anchor bolt body (1), characterized in that: The anchor bolt body (1) is rotatably connected to a base plate (2), and the base plate (2) is fixedly connected to two rotating blocks (3). The two rotating blocks (3) are rotatably connected to a rotating rod (4) on the side close to each other, and the arc surface of the rotating rod (4) is fixedly connected to a protective shell (5).
2. The anti-disassembly anchor bolt according to claim 1, characterized in that: Two square blocks (6) are fixedly connected to the surface of the base plate (2), and a rod (7) is slidably inserted into the square block (6). Two slots (8) are opened on the surface of the protective shell (5).
3. The anti-disassembly anchor bolt according to claim 2, characterized in that: One end of the insertion rod (7) is provided with a groove, and an operating block (9) is fixedly connected to the surface of the groove of the insertion rod (7).
4. The anti-disassembly anchor bolt according to claim 2, characterized in that: The arc surface of the insertion rod (7) is fitted with a spring (10), and the two ends of the spring (10) are fixedly connected to the operating block (9) and the square block (6) respectively.
5. The anti-disassembly anchor bolt according to claim 1, characterized in that: The rotating rod (4) has two torsion springs (11) on its arc surface. The two ends of the torsion springs (11) are fixedly connected to the rotating block (3) and the protective shell (5) respectively.
6. The anti-disassembly anchor bolt according to claim 1, characterized in that: The surface of the protective shell (5) is provided with a fixing groove, and a protective pad (12) is fixedly connected to the surface of the fixing groove of the protective shell (5).