Nut for connecting templates

Abstract

The utility model discloses a nut for connecting template, including coaxial connection's head and connecting portion, the head is provided with regular polygon hole, and the connecting portion is provided with the stepped hole along the axial penetration, and this stepped hole includes large diameter section and small diameter section, and the large diameter section is communicated with the regular polygon hole, the first internal thread is provided to the connecting portion at the large diameter section, the second internal thread is provided to the connecting portion at the small diameter section, and the outer wall of connecting portion is provided with external thread. The utility model provides technical scheme, and the problem that the single center hole and internal thread structure of internal and external tooth nut in the prior art can not position the screw rod axially is solved.

Description

Technical Field

[0001] This utility model relates to the field of hardware connectors, and in particular to a nut for connecting templates. Background Technology

[0002] In the field of template connection, internal and external threaded nuts are widely used as common connecting parts. In existing technologies, internal and external threaded nuts used for connecting templates have both external and internal threads, but their central through-hole and internal thread specifications are limited. In practical use, a screw can be screwed into and through the internal and external threaded nuts. However, due to the limited structure of the central through-hole and internal thread in the internal and external threaded nuts, axial positioning of the screw is not possible. This makes it unsuitable for connection scenarios where a screw does not need to pass through the nut. In view of the above technical problems, this application proposes a nut for connecting templates that can adapt to different specifications of screws, can axially position the screw, and retains the function of allowing the screw to pass through the nut, thereby meeting the requirements of different application scenarios. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a nut for connecting templates, which aims to solve the technical problem that the single structure of the center hole and internal thread of the internal and external thread nuts in the prior art makes it impossible to axially position the screw.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A nut for connecting a template includes a head and a connecting part coaxially connected. The head has a regular polygonal hole, and the connecting part has a stepped hole extending through the axial direction. The stepped hole includes a large diameter section and a small diameter section, and the large diameter section communicates with the regular polygonal hole. The connecting part is provided with a first internal thread corresponding to the large diameter section and a second internal thread corresponding to the small diameter section. The outer wall of the connecting part is provided with an external thread.

[0005] Furthermore, in the nut used to connect the template, the regular polygonal hole is a regular hexagonal hole.

[0006] Furthermore, in the nut used to connect the template, the depth of the regular polygonal hole is equal to the thickness of the head.

[0007] Furthermore, in the nut used to connect the template, the diameter of the major diameter section is larger than the diameter of the inscribed circle of the regular polygonal hole.

[0008] Furthermore, in the nut used for connecting the template, the outer peripheral wall of the head is provided with a conical surface, which extends gradually from the end of the head near the connecting part to the end away from the connecting part.

[0009] Furthermore, in the nut used to connect the template, the pitch of the first internal thread is greater than the pitch of the second internal thread.

[0010] Furthermore, in the nut used to connect the template, the length of the first internal thread is greater than the length of the second internal thread.

[0011] Furthermore, in the nut used to connect the template, the outer diameter of the head is larger than the maximum outer diameter of the connecting part.

[0012] Furthermore, in the nut used to connect the template, the inner and outer walls of the connecting part are provided with an anti-rust coating.

[0013] Beneficial effects: This utility model provides a nut for connecting templates. It features a regular polygonal hole at the head, a stepped hole with a large diameter section and a small diameter section at the connecting part, with a first internal thread corresponding to the large diameter section and a second internal thread corresponding to the small diameter section, and an external thread on the outer wall of the connecting part. Compared with the prior art, it has significant advantages: the combination of stepped hole and double internal thread can be adapted to screws of different specifications. It can achieve quick pre-installation or non-penetrating axial positioning of the screw through the first internal thread (meeting the scenario where the screw does not need to penetrate), and can achieve precise penetration and tight locking of the screw through the second internal thread. It solves the problem that the existing internal and external thread nuts cannot axially position the screw due to the single structure of the center hole and internal thread. Attached Figure Description

[0014] Figure 1 The three-dimensional nut for connecting templates provided by this utility model Figure 1 .

[0015] Figure 2 The three-dimensional nut for connecting templates provided by this utility model Figure 2 .

[0016] Figure 3 This is a front view of the nut used for connecting the template provided by this utility model.

[0017] Figure 4 A top view of the nut used for connecting the template provided by this utility model.

[0018] Figure 5 for Figure 4 Sectional view of AA.

[0019] Explanation of reference numerals in the attached figures: 1. Head; 19. Conical surface; 101. Regular polygonal hole; 2. Connecting part; 21. First internal thread; 22. Second internal thread; 23. External thread; 201. Large diameter section; 202. Small diameter section. Detailed Implementation

[0020] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model is further described in detail below. It should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0021] Please see Figures 1 to 5 This utility model provides a nut for connecting templates. The accompanying drawings are for illustrative purposes only and are not proportional to actual products. The terms "first," "second," etc., used herein are merely different names for similar structures for ease of explanation and are not intended to limit this application.

[0022] The nut for connecting the template includes a head 1 and a connecting part 2 that are coaxially connected. The head 1 has a regular polygonal hole 101, and the connecting part has a stepped hole that extends through the axial direction. The stepped hole includes a large diameter section 201 and a small diameter section 202. The large diameter section communicates with the regular polygonal hole. The connecting part is provided with a first internal thread 21 at the large diameter section and a second internal thread 22 at the small diameter section. The outer wall of the connecting part is provided with an external thread 23.

[0023] Preferably, the regular polygonal hole 101 is a regular hexagonal hole. The structural design of the regular hexagonal hole ensures both ease of tool insertion and removal (easier to align than a regular polygon with more sides) and better resistance to torque transmitted when the template is subjected to external forces than a regular quadrilateral hole. Therefore, it can simultaneously meet the dual requirements of "ease of operation" and "load resistance". Furthermore, the depth of the regular polygonal hole 101 is equal to the thickness of the head 1. This design allows the regular polygonal hole to just penetrate the head without extending into the connecting part, preventing the regular polygonal hole from extending into the connecting part and damaging the stepped hole or internal thread structure, thus ensuring the integrity of each structure in the connecting part. In addition, if the hole depth is less than the head thickness, the wrench will not be inserted deeply enough, resulting in a reduced contact area with the hole wall, which can easily lead to slippage and prevent effective torque transmission.

[0024] Furthermore, the diameter of the larger diameter section is larger than the diameter of the inscribed circle of the regular polygonal hole. This arrangement ensures that the external screw can pass smoothly through the regular polygonal hole and connect with the threaded section of the larger diameter section.

[0025] Furthermore, the outer peripheral wall of the head 1 is provided with a conical surface 19, which extends in a gradually expanding shape from one end of the head near the connecting part to the other end away from the connecting part. When the nut needs to be inserted into the pre-set mounting hole of the template, the gradually expanding conical surface can form a guiding effect when the nut is inserted into the mounting hole. The entrance of the mounting hole can first contact the large end of the conical surface, and the inclined structure of the conical surface automatically guides the nut to be coaxially aligned with the mounting hole, without the need for repeated manual adjustments.

[0026] Furthermore, the pitch of the first internal thread is greater than the pitch of the second internal thread. In practical use, this difference in pitch design allows the same nut to be compatible with two different screw connection scenarios, eliminating the need to replace nuts of different specifications and improving connection flexibility.

[0027] Furthermore, the length of the first internal thread is greater than the length of the second internal thread. The longer length of the first internal thread increases the thread engagement length between the screw and the large-diameter section, preventing the connection from becoming loose due to insufficient engagement length.

[0028] Furthermore, the outer diameter of the head 1 is larger than the maximum outer diameter of the connecting part 2. This arrangement facilitates the formation of an independent operating area for the head, preventing the connecting part from interfering with the wrench.

[0029] Furthermore, the inner and outer walls of the connecting part are provided with an anti-rust coating. The anti-rust coating can prevent the threads from rusting and failing, ensuring the long-term connection performance of the nut.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of the present utility model, and all such modifications or substitutions should fall within the protection scope of the present utility model.

Claims

1. A nut for connecting a template, comprising a coaxially connected head and a connecting portion, characterized in that: The head has a regular polygonal hole, and the connecting part has a stepped hole that runs through it along the axial direction. The stepped hole includes a large diameter section and a small diameter section, and the large diameter section communicates with the regular polygonal hole. The connecting part is provided with a first internal thread at the large diameter section and a second internal thread at the small diameter section. The outer wall of the connecting part is provided with an external thread.

2. The nut for connecting templates according to claim 1, characterized in that: The regular polygonal hole is a regular hexagonal hole.

3. The nut for connecting a template according to claim 1 or 2, characterized in that: The depth of the regular polygonal hole is equal to the thickness of the head.

4. The nut for connecting templates according to claim 1, characterized in that: The diameter of the larger diameter section is greater than the diameter of the inscribed circle of the regular polygonal hole.

5. The nut for connecting a template according to claim 1, characterized in that: The outer peripheral wall of the head is provided with a conical surface, which extends gradually from the end of the head near the connecting part to the end away from the connecting part.

6. The nut for connecting a template according to claim 1, characterized in that: The pitch of the first internal thread is greater than the pitch of the second internal thread.

7. The nut for connecting templates according to claim 1, characterized in that: The length of the first internal thread is greater than the length of the second internal thread.

8. The nut for connecting a template according to claim 1, characterized in that: The outer diameter of the head is greater than the maximum outer diameter of the connecting part.

9. The nut for connecting a template according to claim 1, characterized in that: The inner and outer walls of the connecting part are provided with anti-rust coatings.

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