Perforating drill bit for expansion joint skin

Abstract

The invention discloses a perforating drill bit and bearing assembly for an expansion joint skin in the technical field of perforating equipment. The perforating drill bit and bearing assembly comprises the skin, a clamping plate is arranged at one end of the skin, and a fixing plate is arranged at the other end of the skin; the drilling assembly comprises a bolt, the bolt is in threaded connection with one end of a buckle, and the other end of the buckle is inserted into the drill bit. The skin perforating device has the beneficial effects that by arranging the drilling assembly, threads on bolts can be protected while skin perforating is conducted, perforating operation and bolt mounting operation are completed synchronously, the skin mounting efficiency is greatly improved, and buckles can serve as gaskets to conduct secondary fixing on the bolts.

Description

Technical Field

[0001] The invention relates to the technical field of perforating equipment, in particular to a perforating drill bit used for expansion joint skins. Background Art

[0002] The main function of the expansion joint skin material is to withstand the pressure of the flue gas system and chemical corrosion from the flue gas or the outside world. The surface layer of the ring belt must be soft to absorb the displacement from all directions. It is a composite material composed of several different fabrics. Some expansion joint skins have metal wires inside or stainless steel braided layers outside. Due to the harsh use environment of the expansion joint skin, the replacement time is short. The traditional installation process is to fix the skin, pierce a hole with a sharp object, and then knock the bolt in. The installation process is particularly time-consuming and laborious for thick skins and skins with metal fabrics, and it will damage the screw threads, making it difficult to start the threads.

[0003] In summary, the current installation process consumes a lot of time and physical strength. Therefore, a set of tools that can quickly thread screws and save effort are needed to improve work efficiency. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is how to improve the installation efficiency of the skin.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a load-bearing component, including a skin, a splint is provided at one end of the skin, and a fixing plate is provided at the other end of the skin; a drilling component, including a bolt, the bolt is threadedly connected to one end of the clip, and the other end of the clip is inserted into the drill bit.

[0008] As a preferred solution of the perforating drill bit for expansion joint skin described in the present invention, both the clamping plate and the fixing plate are provided with reserved holes, and the two reserved holes are located on the same axis.

[0009] As a preferred solution of the perforating drill bit for expansion joint skin described in the present invention, wherein: the bolt is provided with an external thread.

[0010] As a preferred solution of the perforating drill bit for expansion joint skin of the present invention, the length of the bolt is greater than the thickness of the skin.

[0011] As a preferred solution of the perforating drill bit for expansion joint skin described in the present invention, the inner diameter of the buckle is larger than the diameter of the reserved hole.

[0012] As a preferred solution of the perforating drill bit for expansion joint skin described in the present invention, the buckle comprises a clamping ring and an elastic sheet evenly arranged on the clamping ring, and the inner wall of the clamping ring is provided with an internal thread.

[0013] As a preferred solution of the perforating drill bit for expansion joint skin described in the present invention, a locking block is provided on the outer wall of the elastic sheet, first inclined surfaces are provided on both sides of the locking block, and a second inclined surface is provided on the side of the locking block away from the retaining ring.

[0014] As a preferred solution of the perforating drill bit for expansion joint skin of the present invention, the drill bit is provided with a groove, the side wall of the groove is provided with a locking groove, and the locking groove corresponds to the locking block one by one. As a preferred solution of the perforating drill bit for expansion joint skin of the present invention, the drill bit is provided with a plurality of blades.

[0015] As a preferred solution of the perforating drill bit for expansion joint skin described in the present invention, the side wall of the drill bit is provided with a through hole.

[0016] The beneficial effects of the present invention are as follows: by setting up a drilling assembly, the thread on the bolt can be protected while punching the skin, and the punching operation and the bolt installation operation are completed synchronously, which greatly improves the installation efficiency of the skin, and the buckle can be used as a gasket to perform secondary fixation on the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 A schematic structural diagram of a perforating drill bit for an expansion joint skin according to an embodiment of the present invention;

[0019] Figure 2 A schematic cross-sectional structure diagram of a perforating drill bit for an expansion joint skin according to an embodiment of the present invention;

[0020] Figure 3 A schematic structural diagram of a drilling assembly according to an embodiment of the present invention;

[0021] Figure 4A schematic diagram of the explosion structure of a drilling assembly according to an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the structure of a buckle according to an embodiment of the present invention;

[0023] Figure 6 A schematic structural diagram of a drilling assembly in a fixed state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figure 1-6 The present embodiment provides a perforating drill bit for an expansion joint skin, including a bearing assembly 100, including a skin 101, a clamping plate 102 is provided at one end of the skin 101, and a fixing plate 103 is provided at the other end of the skin 101; a drilling assembly 200, including a bolt 201, the bolt 201 is threadedly connected to one end of a clip 202, and the other end of the clip 202 is inserted into the drill bit 203.

[0030] Specifically, the bearing assembly 100 is mainly used to fix the skin 101 . The skin 101 is an expansion joint skin, which is a composite material. The skin 101 can be fixed between the clamping plate 102 and the fixing plate 103 .

[0031] Preferably, the drill bit 203 is sharp enough to cut through the skin 101 to complete the drilling operation of the drilling assembly 200. The buckle is made of a material with a certain ductility and can be deformed under extrusion.

[0032] When drilling a hole in the skin 101, first insert one end of the buckle 202 into the drill bit 203, and then fix the other end of the buckle 202 on the bolt 201. After the installation of the drilling assembly 200, the drilling assembly 200 is inserted into the skin 101 by external force to perform a drilling operation until the drilling assembly 200 completely penetrates the skin 101, and then the drill bit 203 is removed. In order to improve practicality, the buckle 202 has a certain ductility, such as plastic. After the buckle 202 is flattened, it can be used as a gasket, which can improve the stability of the bolt 201 connection.

[0033] Example 2

[0034] Reference Figure 2-5 , which is the second embodiment of the present invention, is based on the previous embodiment, and is different from the previous embodiment in that: the clamping plate 102 and the fixing plate 103 are both provided with a reserved hole 102a, and the two reserved holes 102a are located on the same axis; the bolt 201 is provided with an external thread 201a; the length of the bolt 201 is greater than the thickness of the skin 101; the inner diameter of the buckle 202 is greater than the diameter of the reserved hole 102a; the buckle 202 includes a snap ring 202a and a uniform ring arranged on the snap ring 20 2a, an elastic sheet 202b is provided on the inner wall of the snap ring 202a, an internal thread 202a-1 is provided; a locking block 202c is provided on the outer wall of the elastic sheet 202b, a first inclined surface 202c-1 is provided on both sides of the locking block 202c, and a second inclined surface 202c-2 is provided on the side of the locking block 202c away from the snap ring 202a; a groove 203a is provided on the drill bit 203, and a locking groove 203a-1 is provided on the side wall of the groove 203a, and the locking groove 203a-1 corresponds to the locking block 202c one by one. A plurality of blades 203b are provided on the drill bit 203; a through hole 203c is provided on the side wall of the drill bit 203.

[0035] Specifically, the diameter of the reserved hole 102 a is consistent with the diameter of the drill bit 203 , allowing the drill bit 203 to pass through the reserved hole 102 a to perform a drilling operation on the skin 101 .

[0036] Preferably, since the diameter of the drill bit 203 is slightly larger than the outer diameter of the bolt 201, the skin 101 will not cause wear to the external thread 201a during the drilling operation. After the drilling is completed and the bolt 201 is inserted into the hole to fix the skin 101, the skin 101 has a certain flexibility and will refill the gap between the hole wall and the bolt 201, thereby further enhancing the connection strength of the bolt 201.

[0037] During the actual use of the drilling assembly 200, first, insert one end of the buckle 202 with the elastic sheet 202b into the groove 203a of the drill bit 203. When the elastic sheet 202b is inserted, since the bottom of the locking block 202c is provided with a second inclined surface 202c-2, the elastic sheet 202b is bent inward under the extrusion of the side wall of the groove 203a until the locking block 202c is embedded in the locking groove 203a-1. Then, the elastic sheet 202b returns to its original position and realizes the connection between the buckle 202 and the drill bit 203. After that, the end of the buckle 202 with the internal thread 202a-1 is connected to the bolt 201 to complete the assembly of the drilling assembly 200. Under the action of external force, the blade 203b on the drill bit 203 cuts the skin 101 to complete the drilling work.

[0038] Example 3

[0039] Reference Figure 6 , which is the third embodiment of the present invention, provides a perforating drill bit for an expansion joint skin. This embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

[0040] When the drilling is completed, the drill bit 203 completely penetrates the skin 101 and extends from the reserved hole 102a of the fixing plate 103. After that, a thin rod is used to pass through the through hole 203c and rotate it. When the thin rod drives the drill bit 203 to rotate, the locking block 202c slides out of the locking groove 203a-1 through the first inclined surface 202c-1 of the side wall, completing the unlocking of the drill bit 203 and the buckle 202. At this time, the buckle 202 can serve as a gasket and realize the corresponding function. The buckle 202 is further rotated to make it close to the fixing plate 103, thereby strengthening the connection of the bolt 201.

[0041] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0042] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0043] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A perforating drill bit for expansion joint skin, characterized in that: include, A load-bearing assembly (100) comprises a skin (101), wherein a clamping plate (102) is provided at one end of the skin (101), and a fixing plate (103) is provided at the other end of the skin (101); The drilling assembly (200) comprises a bolt (201), wherein one end of the bolt (201) is threadedly connected to a buckle (202), and the other end of the buckle (202) is inserted into a drill bit (203).

2. The perforating drill bit for expansion joint skin according to claim 1, characterized in that: The clamping plate (102) and the fixing plate (103) are both provided with a reserved hole (102a), and the two reserved holes (102a) are located on the same axis.

3. The perforating drill bit for expansion joint skin according to claim 2, characterized in that: The bolt (201) is provided with an external thread (201a).

4. The perforating drill bit for expansion joint skin according to claim 3, characterized in that: The length of the bolt (201) is greater than the thickness of the skin (101).

5. The perforating drill bit for expansion joint skin according to claim 2 or 4, characterized in that: The inner diameter of the buckle (202) is greater than the diameter of the reserved hole (102a).

6. The perforating drill bit for expansion joint skin according to claim 5, characterized in that: The buckle (202) comprises a clamping ring (202a) and an elastic sheet (202b) evenly arranged on the clamping ring (202a); an inner wall of the clamping ring (202a) is provided with an internal thread (202a-1).

7. The perforating drill bit for expansion joint skin according to claim 6, characterized in that: The outer wall of the elastic sheet (202b) is provided with a locking block (202c), both sides of the locking block (202c) are provided with first inclined surfaces (202c-1), and the side of the locking block (202c) away from the clamping ring (202a) is provided with a second inclined surface (202c-2).

8. The perforating drill bit for expansion joint skin according to claim 7, characterized in that: The drill bit (203) is provided with a groove (203a), and a locking groove (203a-1) is provided on a side wall of the groove (203a), and the locking groove (203a-1) corresponds one-to-one to the locking block (202c).

9. The perforating drill bit for expansion joint skin according to claim 1 or 8, characterized in that: The drill bit (203) is provided with a plurality of blades (203b).

10. The perforating drill bit for expansion joint skin according to claim 9, characterized in that: A through hole (203c) is provided on the side wall of the drill bit (203).

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