Device for cleaning residual glue in threaded hole

Abstract

The utility model discloses a device for cleaning residual glue in a threaded hole, solves the problem that the inner wall of the threaded hole is easily damaged due to the fact that a cutting head and a cutter body of a threaded hole glue cleaning device in the prior art are of an integrated structure, and has the beneficial effects of effectively protecting the inner wall of the threaded hole and preventing the inner wall of the threaded hole and a threaded bottom hole from being damaged. According to the specific scheme, the device comprises a hollow thread sleeve, a groove is formed in the thread sleeve and communicated with the hollow position of the thread sleeve, a connecting rod penetrates through the thread sleeve, a cutting edge is arranged at the end, penetrating through the thread sleeve, of the connecting rod, the length of the connecting rod is larger than that of the thread sleeve, and the connecting rod can move in the axial direction of the thread sleeve relative to the thread sleeve. The thread sleeve can be screwed into the threaded hole to crush residual glue in the threaded hole, and the cutting edge is driven by the connecting rod to rotate to crush the residual glue in the threaded bottom hole.

Description

Technical Field

[0001] This utility model relates to the field of cleaning residual adhesive in threaded holes, and in particular to a device for cleaning residual adhesive in threaded holes. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] To prevent bolts from loosening, thread-locking adhesive is often applied during bolt installation to enhance their anti-loosening effect and reduce the risk of bolt detachment. Additionally, silicone-based sealant is applied in some applications to improve the waterproofing and rust prevention capabilities of the components. However, during product maintenance, it was found that a significant amount of thread-locking adhesive and sealant remained inside the threaded holes and pilot holes after bolt removal. Once the sealant has cured, cleaning it is extremely difficult, resulting in a huge workload for operators and hindering the reassembly of components.

[0004] Existing technologies provide threaded hole adhesive removal devices, which feature a hollow tool body with a recess for storing residual adhesive and a cutting head at the tool head. However, these devices present several problems:

[0005] The tool body and the cutting head are integrated into one structure, which is used to clean the threaded hole and the threaded bottom hole at the same time. However, the residual adhesive inside the threaded bottom hole is difficult to remove. In order to ensure effective cleaning of the residual adhesive in the threaded bottom hole, the tool body needs to rotate continuously to clean the residual adhesive inside the threaded bottom hole through the cutting head. However, during the continuous rotation of the tool body, the tool body will be in continuous contact with the inner wall of the threaded hole, which can easily damage the inner wall of the threaded hole.

[0006] The cutting head has a planar structure, making it difficult to break up the residual adhesive inside the sharp-shaped threaded bottom hole;

[0007] For some deep threaded holes, existing technologies require a relatively long tool body to achieve cleaning. The cleaning tool can only be used for one type of threaded hole and cannot meet the needs of threaded holes of different depths. For shallower threaded holes, the cleaning depth of the tool can only be manually controlled, which can easily damage the bottom hole of the thread.

[0008] The tool body is hollow, and the recess is connected to the tool body. When residual glue enters the recess, it can easily be left in the threaded hole through the tool body. Of course, it can be cleaned after the tool body leaves the threaded hole, but the function of the recess is affected. Utility Model Content

[0009] In view of the shortcomings of the existing technology, the first objective of this utility model is to provide a device for cleaning residual adhesive in threaded holes, which solves the problem of difficult cleaning of residual adhesive in threaded holes, and does not damage the threads and threaded holes.

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0011] A device for cleaning residual adhesive in threaded holes includes a hollow threaded sleeve with a groove that communicates with the hollow portion of the sleeve. A connecting rod passes through the threaded sleeve, and a cutting edge is provided at one end of the connecting rod that passes through the threaded sleeve. The length of the connecting rod is greater than the length of the threaded sleeve, and the connecting rod can move axially relative to the threaded sleeve. The cutting edge is conical, and the threaded sleeve can be screwed into the threaded hole to break up the residual adhesive inside the threaded hole. The connecting rod drives the cutting edge to rotate to break up the residual adhesive inside the bottom hole of the threaded hole.

[0012] As described above, in a device for cleaning residual adhesive from threaded holes, a limiting block is provided at the end of the connecting rod away from the cutting edge, and the position of the limiting block relative to the connecting rod is movable.

[0013] In the device for cleaning residual adhesive from threaded holes as described above, the limiting block is a rectangular block or a circular block.

[0014] As described above, in a device for cleaning residual adhesive from threaded holes, the outer diameter of the threaded sleeve is adapted to the inner diameter of the threaded hole, and the inner diameter of the threaded sleeve is greater than or equal to the outer diameter of the connecting rod.

[0015] The device has multiple parts, and the outer diameter of the threaded sleeve of each part is different. The size of the connecting rod of each part is matched with the size of the threaded sleeve.

[0016] As described above, in a device for cleaning residual adhesive from threaded holes, the cutting edge comprises multiple cutting strips arranged along the generatrix direction of the tapered section of the cutting edge.

[0017] As described above, in a device for cleaning residual adhesive from threaded holes, a limiting step is formed between the cutting edge and the connecting rod to limit the threaded sleeve, and the maximum diameter of the cutting edge is smaller than the outer diameter of the threaded sleeve.

[0018] As described above, in a device for cleaning residual adhesive from threaded holes, the end of the connecting rod away from the cutting edge is connected to a transition joint, the connecting rod is connected to a power tool through the transition joint, and the size of the limiting block is larger than the size of the transition joint.

[0019] As described above, in a device for cleaning residual adhesive from threaded holes, a fixing head is provided at the end of the threaded sleeve away from the cutting edge, and the outer diameter of the fixing head is larger than the outer diameter of the threaded sleeve.

[0020] As described above, in a device for cleaning residual adhesive from threaded holes, the length of the threaded sleeve is less than the depth of the threaded hole, and the connecting rod extends beyond the fixed head.

[0021] As described above, in a device for cleaning residual adhesive from threaded holes, multiple grooves are provided along the length of the threaded sleeve, and the grooves are arranged in a spiral pattern at the threaded sleeve.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1) In this utility model, the threaded sleeve drives the connecting rod to be screwed into the threaded hole that needs to be cleaned. During the gradual screwing of the threaded sleeve, the residual thread-locking adhesive and sealant on the inner wall of the thread ring can be cleaned and stored in the groove. After the threaded sleeve is screwed in, the connecting rod drives the cutting edge to rotate. The cutting edge breaks the residual thread-locking adhesive and sealant in the bottom hole of the threaded hole by rotating, ensuring effective breaking of the residual adhesive in the threaded hole. The cutting edge and the threaded sleeve break the residual adhesive on the inner wall of the threaded hole and the bottom hole of the threaded hole, respectively. The connecting rod and the threaded sleeve are separate. The cutting edge does not drive the rotation of the threaded sleeve during the rotation of the cutting edge. During the rotation of the cutting edge, the threaded sleeve protects the inner wall of the threaded hole and avoids damage to the threaded hole.

[0024] 2) In this utility model, the cutting edge is conical, which is compatible with the sharp threaded bottom hole, and can effectively break the residual glue in the sharp threaded bottom hole.

[0025] 3) In this utility model, the length of the connecting rod exceeds the setting of the threaded sleeve. The connecting rod is equipped with a limiting block. After the threaded sleeve is screwed into place, the connecting rod can move relative to the cutting edge. Under the action of external force, the connecting rod can extend into the threaded bottom hole relative to the threaded sleeve to break up the residual glue. The cutting edge can move relative to the threaded sleeve. In cooperation with the limiting block, it can ensure the cleaning effect on the threaded bottom hole while avoiding damage to the threaded bottom hole. The limiting block can move relative to the connecting rod. Adjusting the position of the limiting block can achieve cleaning of threaded holes of different depths.

[0026] 4) In this utility model, the entire device can be provided in multiple ways. The outer diameter of the screw sleeve in different devices is different, and the size of the connecting rod is adapted to the screw sleeve. In this way, the device can be adapted to threaded holes of different specifications. According to the different specifications of threaded holes, the appropriate device can be selected to effectively clean the residual glue in the threaded holes and the bottom threaded holes.

[0027] 5) Although the threaded sleeve in this utility model is hollow and the groove is connected to the hollow part of the threaded sleeve, the connecting rod passes through the threaded sleeve and seals the groove, preventing the residual glue in the groove from falling back into the threaded hole, thus improving the cleaning speed of the residual glue.

[0028] 6) In this utility model, a fixing head is provided at the end of the threaded sleeve. The fixing head can be exposed outside the threaded hole, thus limiting the position of the threaded sleeve entering the threaded hole and facilitating the separation of the threaded sleeve from the threaded hole. Attached Figure Description

[0029] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0030] Figure 1 This is a schematic diagram of a device for cleaning residual adhesive in threaded holes according to one or more embodiments of the present invention.

[0031] Figure 2 This is a schematic diagram of a sliding groove provided at the connecting rod in a device for cleaning residual adhesive in threaded holes according to one or more embodiments of the present invention.

[0032] Figure 3 This is a schematic diagram of a threaded sleeve in a device for cleaning residual adhesive in threaded holes according to one or more embodiments of the present invention.

[0033] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0034] Among them: 1. transition joint, 2. limiting block, 3. connecting rod, 4. fixing head, 5. threaded sleeve, 6. cutting edge, 7. slide groove, 8. protrusion, 9. groove. Detailed Implementation

[0035] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] As described in the background section, in the prior art, the tool body and the cutting head are an integral structure. The tool body needs to rotate together during the cleaning of residual adhesive, which can easily damage the threaded hole. In order to solve the above technical problem, this utility model proposes a device for cleaning residual adhesive from threaded holes.

[0038] Example 1

[0039] In a typical embodiment of this utility model, refer to Figure 1As shown, a device for cleaning residual adhesive in threaded holes, where residual adhesive refers to thread-locking adhesive and sealant, is described. The device includes a hollow threaded sleeve 5 with a groove that communicates with the hollow portion of the sleeve 5. A connecting rod 3 passes through the threaded sleeve 5, and a cutting edge is provided at one end of the connecting rod 3 that passes through the threaded sleeve 5. The length of the connecting rod 3 is greater than the length of the threaded sleeve 5, and the connecting rod 3 can move axially relative to the threaded sleeve 5. The cutting edge 6 is tapered, and its taper matches the taper of the threaded bottom hole. The threaded sleeve 5 can be screwed into the threaded hole, and the connecting rod 3 drives the cutting edge 6 to rotate, thereby breaking up the residual adhesive in the threaded bottom hole. Because the connecting rod 3 passes through the threaded sleeve 5, it seals the groove, preventing the residual adhesive that has entered the groove from falling back into the threaded hole, thus improving the cleaning speed of the residual adhesive.

[0040] In this device, a limiting block 2 is provided at one end of the connecting rod 3 near the transition joint 1. The cutting edge 6 is movable relative to the threaded sleeve 5. It works in conjunction with the limiting block 2 to ensure the cleaning effect on the threaded bottom hole while avoiding damage to the threaded bottom hole. The position of the limiting block 2 relative to the connecting rod 3 is movable to adjust the position of the limiting block 2. In this way, after the position of the threaded sleeve is determined, the connecting rod 3 rotates to drive the cutting edge to clean the threaded bottom hole during the rotation process without affecting the main body of the threaded hole protected by the threaded sleeve. The position of the limiting block is adjusted according to the depth of the threaded hole, so that the entire device is applicable to threaded holes of the same diameter but different depths. Specifically, the limiting block is a rectangular block or a circular block.

[0041] Specifically, refer to Figure 2 As shown, the outer wall of the connecting rod 3 has multiple grooves 7 along the direction parallel to the central axis of the connecting rod, and the inner wall of the limiting block 2 has a protrusion 8. The protrusion 8 is engaged in the groove 7. The groove 7 can be a T-shaped groove, and the protrusion 8 can be a T-shaped protrusion. This facilitates the adjustment of the position of the limiting block 2 in the connecting rod. After adjustment, because the protrusion 8 and the groove 7 are engaged, the rotation speed of the connecting rod is also relatively slow, which can also ensure the relative position of the limiting block and the connecting rod.

[0042] In this embodiment, multiple grooves are provided along the length of the threaded sleeve 5, with a spacing between adjacent grooves. When the threaded sleeve 5 is screwed into the threaded hole, it fully contacts the residual adhesive on the inner wall of the threaded hole to break up the residual adhesive. The grooves are arranged in a spiral pattern at the threaded sleeve to ensure the length of the grooves. The grooves can be elongated, and the length of the groove in the axial direction of the threaded sleeve 5 is less than the length of the threaded sleeve, typically 9 / 11 to 8 / 9 of the length of the threaded sleeve 5, to ensure the length of the grooves and maximize the amount of broken residual adhesive that enters the grooves. (Reference) Figure 3 As shown, in some examples, the groove 9 can also be long and straight, with the groove 9 extending to the side of the threaded sleeve 5 away from the fixing head.

[0043] It is easy to understand that, in order to improve the compatibility with the specifications of the threaded hole, multiple threaded sleeves 5 and multiple connecting rods 3 can be provided to ensure the compatibility between the maximum diameter of the cutting edge and the outer diameter of the threaded sleeve. Thus, according to the specifications of the threaded hole to be cleaned, the appropriate threaded sleeve 5 and connecting rod 3 are selected. The outer diameter of the threaded sleeve 5 is compatible with the inner diameter of the threaded hole, and the inner diameter of the threaded sleeve 5 is greater than or equal to the outer diameter of the connecting rod. Under normal circumstances, the threaded sleeve and the matching connecting rod form a set of devices. The outer diameter of the threaded sleeve 5 is different in different devices, and the maximum diameter of the cutting edge of the connecting rod is also different.

[0044] It should be noted that, in order to ensure the effective breaking of residual adhesive in the threaded bottom hole, the end of the cutting edge away from the connecting rod 3 is tapered to match the shape of the threaded bottom hole, so as to effectively clean the tapered threaded bottom hole. The cutting edge 6 includes multiple cutting strips, which are set along the generatrix direction of the tapered section of the cutting edge.

[0045] Understandably, a limiting step is formed between the cutting edge 6 and the connecting rod to limit the threaded sleeve. The maximum diameter of the cutting edge 6 is slightly smaller than the inner diameter of the threaded hole, so that the residual adhesive in the area near the bottom of the threaded hole can be effectively broken during the rotation of the cutting edge. The height of the cutting edge is limited, and the height of the cutting edge is 1 / 9 to 1 / 7 of the height of the connecting rod, so as not to damage the inner wall of the threaded hole.

[0046] The connecting rod 3 can be a cylindrical rod. The end of the connecting rod 3 away from the cutting edge 6 is connected to the transition joint 1. The connecting rod 3 is connected to the power tool through the transition joint 1. The transition joint 1 can be rectangular, circular, or hexagonal. The side length or diameter of the limiting block 2 is larger than the side length or diameter of the transition joint 1. The transition joint 1 is used to connect to the power tool, such as a wrench, so that the power tool can drive the rotation of the connecting rod and the cutting edge.

[0047] In this embodiment, the threaded sleeve 5 can be made of rubber. A fixing head 4 is provided at the end of the threaded sleeve 5 away from the cutting edge 6. The outer diameter of the fixing head 4 is larger than the outer diameter of the threaded sleeve 5. The fixing head 4 can be annular or other shapes. The fixing head 4 can be exposed outside the threaded hole. This limits the position of the threaded sleeve 5 entering the threaded hole and facilitates the separation of the threaded sleeve 5 from the threaded hole.

[0048] In addition, the length of the threaded sleeve 5 is less than the depth of the threaded hole, so that the entire threaded sleeve falls into the threaded hole, effectively protecting the main part of the inner wall of the threaded hole and preventing the entire rotating tool from damaging the inner wall of the threaded hole. The connecting rod 3 is set beyond the fixed head 4, and the fixed head 4 limits the position of the limit block 2.

[0049] The device provided in this embodiment consists of a screw sleeve 5 and a connecting rod 3 forming a complete structure. The screw sleeve 5 drives the connecting rod to be screwed into the threaded hole to be cleaned. The fixed head at the end of the screw sleeve limits the position of the screw sleeve 5. During the gradual screwing of the screw sleeve 5, the residual thread-locking adhesive and sealant on the inner wall of the thread ring can be cleaned and stored in the groove. After the screw sleeve 5 is screwed into place, the connecting rod 3 is connected to the power tool through the transition joint 1. The power tool drives the connecting rod 3 and the cutting edge 6 to rotate. The cutting edge 6 rotates to break the residual thread-locking adhesive and sealant in the threaded bottom hole, ensuring the cleaning effect of the threaded bottom hole. Under the restriction of the limiting block, the threaded bottom hole will not be damaged. During the rotation of the cutting edge 6, the screw sleeve 5 protects the inner wall of the threaded hole and avoids damage to the threaded hole. The screw sleeve 5 is screwed out in the opposite direction, which drives the connecting rod 3 and the cutting edge 6 to disengage from the threaded hole. A portion of the residual adhesive is taken out through the groove. The broken residual adhesive in the threaded hole is cleaned by other means, realizing the adhesive cleaning operation of the thread and the threaded bottom hole.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for cleaning residual adhesive from threaded holes, characterized in that, It includes a hollow threaded sleeve with a groove that connects to the hollow part of the sleeve. A connecting rod passes through the threaded sleeve, and a cutting edge is provided at one end of the connecting rod that passes through the threaded sleeve. The length of the connecting rod is greater than the length of the threaded sleeve. The connecting rod can move along the axial direction of the threaded sleeve relative to the threaded sleeve. The cutting edge is conical. The threaded sleeve can be screwed into the threaded hole to break the residual adhesive inside the threaded hole. The connecting rod drives the cutting edge to rotate to break the residual adhesive inside the bottom threaded hole.

2. The device for cleaning residual adhesive from threaded holes according to claim 1, characterized in that, A limiting block is provided at the end of the connecting rod away from the cutting edge, and the position of the limiting block relative to the connecting rod is movable.

3. The apparatus for cleaning residual adhesive from threaded holes according to claim 2, characterized in that, The limiting block is a rectangular block or a circular block.

4. The device for cleaning residual adhesive from threaded holes according to claim 1, characterized in that, The outer diameter of the threaded sleeve is adapted to the inner diameter of the threaded hole, and the inner diameter of the threaded sleeve is greater than or equal to the outer diameter of the connecting rod. The device has multiple parts, and the outer diameter of the threaded sleeve of each part is different. The size of the connecting rod of each part is matched with the size of the threaded sleeve.

5. The apparatus for cleaning residual adhesive from threaded holes according to claim 1, characterized in that, The cutting edge includes multiple cutting strips, which are arranged along the generatrix direction of the tapered section of the cutting edge.

6. The apparatus for cleaning residual adhesive from threaded holes according to claim 1, characterized in that, A limiting step is formed between the cutting edge and the connecting rod to limit the threaded sleeve, and the maximum diameter of the cutting edge is smaller than the outer diameter of the threaded sleeve.

7. The apparatus for cleaning residual adhesive from threaded holes according to claim 2, characterized in that, The end of the connecting rod away from the cutting edge is connected to a transition joint, and the connecting rod is connected to a power tool through the transition joint. The size of the limiting block is larger than the size of the transition joint.

8. The apparatus for cleaning residual adhesive from threaded holes according to claim 1, characterized in that, A fixing head is provided at the end of the threaded sleeve away from the cutting edge, and the outer diameter of the fixing head is larger than the outer diameter of the threaded sleeve.

9. The apparatus for cleaning residual adhesive from threaded holes according to claim 8, characterized in that, The length of the threaded sleeve is less than the depth of the threaded hole, and the connecting rod extends beyond the fixed head.

10. The apparatus for cleaning residual adhesive from threaded holes according to claim 1, characterized in that, Multiple grooves are provided along the length of the threaded sleeve, and the grooves are arranged in a spiral pattern at the threaded sleeve.

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