Space occupying bolt for gluing nail hole

Abstract

The utility model discloses an occupying bolt for gluing nail holes, which comprises an upper screw component and a lower screw sleeve component, the upper screw component comprises a screw column, a nut is arranged at the top of the screw column, a groove is arranged on the upper surface of the nut, and a stud is arranged at the bottom of the screw column; the lower screw sleeve assembly comprises a sleeve ring arranged on the surface of the stud in a sleeving mode, a threaded barrel matched with the surface of the stud is arranged at the bottom of the sleeve ring, clamping grooves are formed in the two sides of the surface of the sleeve ring, and a glue discharging opening is formed in the bottom of the threaded barrel. According to the space occupying bolt for nail hole gluing, the lower screw sleeve assembly is screwed into a hole to be glued, then when a sealant is painted on the surface of the lantern ring, the sealant enters the inner wall of the threaded barrel and does not enter the inner wall of the screw hole, and after the sealant is cured, a worker can insert a hexagon wrench into the groove and rotate the nut, so that the sealant can be quickly glued. After the upper screw assembly is screwed into the lower screw sleeve assembly, the whole device is taken out, an original screw hole is exposed, the structure is simple, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of aviation sealant application technology, and in particular to a placeholder bolt for applying adhesive to nail holes. Background Technology

[0002] With the development of modern industry, the requirements for the machining precision of mechanical parts are becoming increasingly higher. In many fields, such as aerospace, automobile manufacturing, and precision instruments, it is often necessary to apply sealant to some assembled parts to achieve functions such as waterproofing, corrosion prevention, and heat insulation.

[0003] Placeholder bolts are auxiliary tools specifically designed for applying adhesive to nail holes. They are primarily used to precisely position nail holes during the adhesive application process, preventing adhesive overflow or uneven application, and simultaneously reserving standard hole diameters for subsequent installations (such as screw or rivet fixings). Their core function is to ensure the accuracy and standardization of the adhesive application area through physical placement, thereby improving the reliability of the assembly process.

[0004] In the current process of applying adhesive to multi-hole parts, due to the large number of holes, the sealant can easily seep into the screw holes without the use of placeholder screws, causing blockage and making it difficult to clean. Therefore, ordinary placeholder screws are usually used to protect the screw holes. However, since the sealant is applied to the surface of the workpiece, it will also be applied to the surface of the placeholder screw, resulting in the sealant also being applied. When the sealant solidifies, it will block the groove on the nut, making it difficult to remove the placeholder screw, which is quite troublesome. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a placeholder bolt for applying adhesive to nail holes. This placeholder bolt uses a combination of screw and threaded sleeve, achieving the technical effect of not affecting the removal of the placeholder bolt while protecting the threads from being blocked by the sealant during the application of sealant.

[0006] To solve the above-mentioned technical problems and achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution:

[0007] The technical solution of this utility model is: a placeholder bolt for applying glue to nail holes, including an upper screw assembly and a lower threaded sleeve assembly. The upper screw assembly includes a screw post, a nut is provided on the top of the screw post, a groove is provided on the upper surface of the nut, and a screw post is provided at the bottom of the screw post.

[0008] The lower threaded assembly includes a collar sleeved on the surface of the screw post. The bottom of the collar is provided with a threaded cylinder adapted to the surface of the screw post. The collar surface has grooves on both sides, and the threaded cylinder has a glue discharge port at the bottom.

[0009] Furthermore, the grooves are arranged in a plum blossom pattern.

[0010] Furthermore, the thickness of the groove is the same as the height of the nut.

[0011] Furthermore, the length of the stud is the same as the length of the threaded cylinder.

[0012] Furthermore, the diameter of the threaded cylinder is larger than the diameter of the screw post.

[0013] Furthermore, the diameter of the nut is larger than the diameter of the threaded cylinder.

[0014] Furthermore, the top of the nut has a smooth design.

[0015] Furthermore, the depth of the slot is the same as the thickness of the collar, and the two slots form a straight groove.

[0016] Furthermore, the diameter of the threaded cylinder is the same as the diameter of the collar.

[0017] The beneficial technical effects of this utility model are as follows: By setting an upper screw assembly and a lower threaded sleeve assembly, the upper screw assembly and the lower threaded sleeve assembly are assembled first, and then screwed into the hole to be glued. Then, the upper screw assembly is removed, and the glue is applied to the surface of the workpiece. When the sealant is applied to the surface of the collar, the sealant will enter the inner wall of the threaded cylinder, but will not enter the inner wall of the screw hole. Compared with traditional placeholder screws, since the top of the lower threaded sleeve assembly in this solution is not sealed, after the sealant has cured, the operator can insert a hex wrench into the groove and turn the nut to screw the upper screw assembly into the lower threaded sleeve assembly. Then, the entire device can be removed to expose the original screw hole. This avoids the sealant being applied above the placeholder screw, which would make the placeholder screw difficult to remove, and also avoids the sealant entering the inner wall of the screw hole, which would affect the normal operation of the screw hole. The structure is simple and saves time and effort. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the threaded cylinder and the slot of this utility model;

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the stud and screw of this utility model;

[0021] Figure 4 This is a front view schematic diagram of the structure of this utility model;

[0022] Figure 5 This is a front sectional view of the structure of this utility model;

[0023] Figure 6 This is a top view schematic diagram of the structure of the nut and groove of this utility model.

[0024] The numbers and letters in the diagram represent the names of the corresponding components:

[0025] 1. Screw post; 2. Nut; 3. Groove; 4. Collar; 5. Threaded sleeve; 6. Slot; 7. Screw. Detailed Implementation

[0026] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0027] See appendix Figure 1-6 As shown, a placeholder bolt for applying adhesive to nail holes includes an upper screw assembly and a lower threaded sleeve assembly. The upper screw assembly includes a screw post 1, a nut 2 on the top of the screw post 1, the top of the nut 2 having a smooth design, and a groove 3 on the upper surface of the nut 2, the groove 3 being arranged in a quincunx pattern, the thickness of the groove 3 being the same as the height of the nut 2, and a screw post 7 on the bottom of the screw post 1. The quincunx patterned groove 3 facilitates the tightening of the bolt by a worker using a hex wrench.

[0028] The lower threaded sleeve assembly includes a collar 4 sleeved on the surface of the screw post 1. The bottom of the collar 4 is provided with a threaded sleeve 5 that is adapted to the surface of the screw post 7. The diameter of the threaded sleeve 5 is the same as the diameter of the collar 4, and the length of the screw post 7 is the same as the length of the threaded sleeve 5. The fact that the lengths of the screw post 7 and the threaded sleeve 5 are the same allows the screw post 7 to be completely inserted into the interior of the threaded sleeve 5.

[0029] Both the inner and outer walls of the threaded cylinder 5 are threaded.

[0030] The diameter of the threaded sleeve 5 is larger than the diameter of the screw post 1, and the diameter of the nut 2 is larger than the diameter of the threaded sleeve 5. Both sides of the collar 4 are provided with slots 6. The depth of the slots 6 is the same as the thickness of the collar 4. The two slots 6 form a slot. By setting the slots 6, when there is too much sealant, the lower threaded sleeve assembly cannot be removed. The operator can also remove it with a flathead screwdriver through the slots 6 above the collar 4. The structure is simple and saves time and effort.

[0031] The bottom of the threaded cylinder 5 is provided with a discharge port. By providing a discharge port, after the sealant solidifies inside the threaded cylinder 5, the upper screw assembly can be inserted into the threaded cylinder 5, so that the stud 7 can discharge the excess sealant inside the threaded cylinder 5 through the discharge port.

[0032] The design of the collar 4 prevents the sealant from seeping into the screw hole when applying adhesive to the surface of the porous part, and also avoids the sealant from sealing the top of the collar 4, which would make the collar 4 difficult to remove.

[0033] During operation, the upper screw assembly and the lower threaded sleeve assembly are first assembled. After assembly, they are screwed together into the hole to be coated with adhesive. Then, the upper screw assembly is removed. At this time, adhesive is applied to the surface of the workpiece. When the sealant is applied to the surface of the collar 4, it will enter the inner wall of the threaded sleeve 5, but will not enter the inner wall of the screw hole. Compared with traditional placeholder screws, since the top of the lower threaded sleeve assembly in this solution is not sealed, after the sealant has cured, the operator can insert a hex wrench into the groove 3 and turn the nut 2 to screw the upper screw assembly into the lower threaded sleeve assembly. Then, the entire device can be removed to expose the original screw hole. This avoids the sealant being applied above the placeholder screw, which would make it difficult to remove, and also avoids the sealant entering the inner wall of the screw hole, which would affect the normal operation of the screw hole. The structure is simple and saves time and effort.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A placeholder bolt for applying adhesive to nail holes, characterized in that, include: The upper screw assembly and the lower threaded sleeve assembly, wherein the upper screw assembly includes a screw post (1), a nut (2) is provided on the top of the screw post (1), a groove (3) is provided on the upper surface of the nut (2), and a screw post (7) is provided on the bottom of the screw post (1). The lower threaded assembly includes a collar (4) sleeved on the surface of the screw post (1). The bottom of the collar (4) is provided with a threaded cylinder (5) that is adapted to the surface of the screw post (7). The collar (4) has grooves (6) on both sides of its surface, and the threaded cylinder (5) has a glue discharge port at its bottom.

2. The placeholder bolt for applying adhesive to nail holes according to claim 1, characterized in that, The groove (3) is arranged in a plum blossom shape.

3. The placeholder bolt for applying adhesive to nail holes according to claim 1, characterized in that, The thickness of the groove (3) is the same as the height of the nut (2).

4. The placeholder bolt for applying adhesive to nail holes according to claim 1, characterized in that, The length of the stud (7) is the same as the length of the threaded cylinder (5).

5. The placeholder bolt for applying adhesive to nail holes according to claim 1, characterized in that, The diameter of the threaded cylinder (5) is larger than the diameter of the screw post (1).

6. The placeholder bolt for applying adhesive to nail holes according to claim 1, characterized in that, The diameter of the nut (2) is larger than the diameter of the threaded cylinder (5).

7. The placeholder bolt for applying adhesive to nail holes according to claim 6, characterized in that, The top of the nut (2) has a smooth design.

8. The placeholder bolt for applying adhesive to nail holes according to claim 1, characterized in that, The depth of the slot (6) is the same as the thickness of the collar (4), and the two slots (6) form a straight groove.

9. The placeholder bolt for applying adhesive to nail holes according to claim 1, characterized in that, The diameter of the threaded cylinder (5) is the same as the diameter of the collar (4).

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