Nut gland and through-wall screw assembly
By designing a nut gland with a spherical structure and anti-detachment parts, the problem of the angle adjustment of the through-wall screw is solved, and the uniform stress of the vertical formwork and the tight compression of concrete are achieved, which improves the quality and flexibility of the building.
Patent Information
- Application Number
- CN202422077932.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing wall-through screws cannot be adjusted angle with the nut gland, resulting in uneven stress on the vertical formwork, affecting the concrete compression force and building quality.
A nut gland is designed, including a first body and a second body, through a spherical structure, the first body can be adjusted with respect to the second body, and the connection is ensured by a prevented part and a guide portion to ensure the angle adjustment of the wall-through screw and a close fit with the vertical formwork.
It ensures the balance of stress of vertical formwork under different installation requirements and spatial constraints, improves the concrete compression effect and building reliability, and expands the applicable occasions of wall-through screw components.
Smart Images
Figure CN223048448U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction formwork components, and more specifically, to a nut gland and a wall-through screw rod assembly. Background Art
[0002] A wall-through screw rod is a threaded connecting piece used to connect two vertical formworks. One side of the screw rod penetrates through the wall position, and the other side is usually fixed with a nut gland. For conventional two vertical formworks with openings at the same horizontal height, at this time, the wall-through nut can pass through the openings of the two vertical formworks in a direction perpendicular to the vertical formworks at the same time. Then, one end of the nut gland abuts and presses against the vertical formwork, and the other end is threadedly connected to the wall-through screw rod to fix the wall-through screw rod, so as to tighten the two vertical formworks and ensure that the concrete in the two vertical formworks is pressed tightly during construction to ensure its reliability; while in some special application scenarios with dense steel bars and wall embedded parts, it may be necessary to avoid the steel bars or embedded parts. At this time, the openings between the two vertical formworks cannot be set at the same horizontal height. However, since the angle between the wall-through screw rod and the nut gland cannot be adjusted, there will be a phenomenon that although the wall-through screw rod can be threadedly connected to the nut gland, the pressing end of the nut gland and the vertical formwork cannot be closely fitted, and only part of it can be pressed tightly, with some gaps, which may lead to uneven stress on the vertical formwork, thus affecting the pressing force of the internal concrete and ultimately affecting the quality of the building. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the problem that the existing wall-through screw rod cannot be adjusted in angle with the nut gland, and provide a nut gland which can change the angle of the wall-through screw rod or adjust its direction when connected to the wall-through screw rod, but the nut gland always remains tightly pressed and fitted with the vertical formwork to meet different installation requirements or space constraints.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A nut gland includes a first body and a second body. A threaded hole is provided through the first body. The second body is provided with an open cavity structure, and the second body is provided with a through hole which is communicated with the cavity structure. The bottom of the first body passes through the through hole and is inserted into the cavity structure; a spherical structure is provided at the first body near the through hole.
[0006] The utility model cooperates with the first body and the second body. The first body is threadedly connected with the wall-through screw rod, and the second body is tightly attached to the vertical formwork. Between the first body and the second body, through the setting of the spherical structure, the first body can adjust its angle relative to the second body. Therefore, when the wall-through screw rod is threadedly connected with the first body, the wall-through screw rod can rotate or adjust its angle following the spherical structure of the first body. The spherical structure is similar to a rotating joint, making the installation process of the wall-through screw rod and the vertical formwork more flexible, not limited to whether the holes between the two vertical formworks are aligned or at the same horizontal height, and can ensure that the two vertical formworks can be evenly stressed under the tight fitting of the nut cover, thereby ensuring the pressing effect of the concrete and making the building reliable. The design of the nut cover of the utility model allows the first body to adjust or limit the angle of the screw rod through the spherical structure while fixing the wall-through screw rod, and makes the second body always keep a good tight fit with the vertical formwork. In this way, the direction of the screw rod can be changed when needed to adapt to specific installation requirements.
[0007] Further, a guiding portion is provided at the position where the through hole is close to the spherical structure, and the spherical structure abuts against the guiding portion. Preferably, the guiding portion is an inclined conical surface, and the aperture of the guiding portion at the end close to the spherical structure is larger than the aperture of the guiding portion at the end far from the spherical structure. On the one hand, it can facilitate the wall-through screw rod to pass through the second body from the through hole and play a guiding role; on the other hand, it can also cooperate with the spherical structure to abut and limit the spherical structure, so that the spherical structure can be limited no matter what angle it is adjusted to.
[0008] Further, it also includes an anti-detachment member. The anti-detachment member is sleeved outside the bottom of the first body and is located in the cavity structure of the second body. The anti-detachment member can abut against the second body at the connection between the through hole and the cavity structure. The anti-detachment member is used to prevent the first body from detaching from the second body. Since the first body and the second body are detachably connected and the bottom of the first body is inserted into the second body, after the first body is inserted into the second body, the anti-detachment member is sleeved outside the first body from the end of the cavity structure of the second body far from the through hole. Through the settings of the aperture of the through hole, the outer diameter of the first body, and the outer diameter of the anti-detachment member, the first body can be inserted into the cavity structure of the second body from the through hole. However, due to the limitation of the outer diameter of the anti-detachment member, after the first body is installed with the anti-detachment member, the first body cannot detach from the second body in the original insertion direction. The anti-detachment member forms a blocking structure between the first body and the second body to ensure that the first body will not come out. After the bottom of the first body is inserted into the cavity of the second body, the spherical structure is still outside the through hole of the second body and does not enter the second body, so it will not cause any interference to the relative rotation of the first body and the second body.
[0009] Furthermore, a mounting groove is provided at the bottom of the first body, and the anti-slipping member is installed in the mounting groove. The mounting groove is a recessed portion between two limiting steps provided at the bottom of the first body, and the anti-slipping member is inserted into the first body and installed in the mounting groove, and the two limiting steps on both sides of the mounting groove are used to limit the axial direction of the anti-slipping member to prevent the anti-slipping member from being separated from the first body.
[0010] Furthermore, the anti-dropping member is an elastic retaining ring. Preferably, the elastic retaining ring is made of 65Mn material.
[0011] Furthermore, the first body is provided with a hand-tightening portion, which is located above the spherical structure or installed on the top of the spherical structure. The provision of the hand-tightening portion can facilitate the rotation of the first body, increase the adhesion when acting on the first body, and is conducive to adjusting the angle of the first body, thereby adjusting the angle of the through-wall screw.
[0012] Furthermore, the hand-tightening part is symmetrically arranged about the central axis of the threaded hole. The symmetrically arranged hand-tightening part can make the first body evenly stressed when force is applied to the first body, reduce stress concentration, and increase its service life. Preferably, a mountain shape or a W shape is formed between the hand-tightening part and the first body, and the first body is made of cast steel. The mountain shape or the W-shape design is convenient for on-site use of steel bars and hammer handles to insert and tighten, reducing the need for special equipment to tighten. Of course, within the scope of knowledge of those skilled in the art, the hand-tightening part can also be other shapes and structures.
[0013] Furthermore, the inner diameter of the cavity structure near the through hole end is smaller than the inner diameter of the cavity structure away from the through hole end. Preferably, the air structure is in a bell-mouth shape, the end with a larger bell-mouth contacts the vertical template, and the end with a smaller bell-mouth contacts the first body, so as to improve the stability of the second body when it abuts against the vertical template.
[0014] Furthermore, the second body has a pressing portion extending outward from the cavity structure away from the through hole end. The setting of the pressing portion can increase the contact area when the second body and the vertical template are pressed and fitted, thereby increasing the reliability when the second body and the vertical template are abutted, and reducing stress concentration, so that the vertical template is more evenly stressed. The second body is also made of cast steel, and the second body is also provided with reinforcing ribs at the pressing portion facing the first body end to increase the strength of the second body.
[0015] The present utility model also provides a wall-piercing screw assembly, including the nut gland and the wall-piercing screw as described above. The wall-piercing screw penetrates through the first body and the second body, and is threadedly connected to the first body through the threaded hole. The wall-piercing screw passes through the nut gland and then successively penetrates through two vertical formworks and the concrete between the vertical formworks. After the wall-piercing screw passes through the second vertical formwork, a nut gland is also used to press and hold this vertical formwork, so that the wall-piercing screw assembly has the function of locking the two vertical formworks. For the wall-piercing screw assembly of the present utility model, the angle of the wall-piercing screw can be adjusted by adjusting the abutting angle between the first body and the second body. Furthermore, when the openings between the two vertical formworks cannot be set at the same horizontal height, the nut gland can still be always pressed and fitted tightly with the vertical formwork, improving the applicable occasions of the wall-piercing screw assembly and expanding its versatility.
[0016] The beneficial effects of the present utility model are:
[0017] The nut gland of the present utility model can change the angle or adjust the direction of the wall-piercing screw in some special application occasions with dense steel bars and wall embedded parts to adapt to different installation requirements or space constraints. Specifically, through the design of the spherical core structure, the first body can rotate or be adjusted relative to the second body, and at the same time, it can be limited, so that the angle of the wall-piercing screw penetrating the vertical formwork can be adjusted. The present utility model can provide flexibility during the installation process to ensure that the wall-piercing screw can be correctly positioned and fixed. While the nut gland is designed to fix the wall-piercing screw, it adjusts or limits the angle of the wall-piercing screw through the spherical structure, and the second body is always pressed and fitted tightly with the vertical formwork to ensure the balanced force of the vertical pressing plate. The structure of the present utility model is simple, easy to install, fast and effective. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a structural diagram of a nut gland of the present utility model.
[0019] Figure 2 is Figure 1 the A-A sectional structural diagram of
[0020] Figure 3 is Figure 2 a reference schematic diagram when adjusting the angle.
[0021] Figure 4 is a structural diagram of the first body of the present utility model in the first direction.
[0022] Figure 5 is a structural diagram of the first body of the present utility model in the second direction.
[0023] Figure 6 is Figure 5Structural diagram of the B-B sectional view.
[0024] Figure 7 It is the structural diagram of the second body of the present utility model in the first direction.
[0025] Figure 8 It is the structural diagram of the second body of the present utility model in the second direction.
[0026] Figure 9 is Figure 8 Structural diagram of the C-C sectional view.
[0027] Figure 10 It is the structural diagram of a wall-piercing screw assembly of the present utility model.
[0028] Figure 11 It is the first usage scenario diagram of a wall-piercing screw assembly of the present utility model.
[0029] Figure 12 It is the second usage scenario diagram of a wall-piercing screw assembly of the present utility model.
[0030] Among them, the illustration marks are explained as follows:
[0031] 1. First body; 2. Second body; 3. Threaded hole; 4. Cavity structure; 5. Spherical structure; 6. Guide part; 7. Anti-disengagement part; 8. Installation groove; 9. Hand-tightening part; 10. Pressing part; 11. Through hole; 12. Reinforcing rib; 13. Nut gland; 14. Wall-piercing screw; 15. Vertical formwork; 16. Concrete. Specific implementation mode
[0032] The attached drawings are only for illustrative purposes and should not be construed as a limitation to this patent; for better explaining this embodiment, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. The positional relationships described in the attached drawings are only for illustrative purposes and should not be construed as a limitation to this patent.
[0033] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.
[0034] The technical solution of the present utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:
[0035] Embodiment 1
[0036] As Figures 1 to 9 Shown is an embodiment of a nut gland of the present utility model, including a first body 1 and a second body 2. A threaded hole 3 is provided through the first body 1. The second body 2 is provided with an open cavity structure 4, and the second body 2 is provided with a through hole 11, and the through hole 11 communicates with the cavity structure 4. The bottom of the first body 1 passes through the through hole 11 and is inserted into the cavity structure 4; a spherical structure 5 is provided near the through hole 11 of the first body 1.
[0037] The present utility model cooperates with the first body 1 and the second body 2, and the first body 1 is threadedly connected to the wall-piercing screw 14, and the second body 2 is tightly pressed and attached to the vertical formwork 15. Between the first body 1 and the second body 2, through the arrangement of the spherical structure 5, the first body 1 can adjust its angle relative to the second body 2. Therefore, when the wall-piercing screw 14 is threadedly connected to the first body 1, the wall-piercing screw 14 can rotate or adjust its angle following the spherical structure of the first body 1. The spherical structure is similar to a rotating joint, making the installation process of the wall-piercing screw 14 and the vertical formwork 15 more flexible, not limited to whether the holes between the two vertical formworks 15 are aligned or at the same horizontal height, and can ensure that the two vertical formworks 15 can be evenly stressed under the tight pressing and attachment of the nut gland 13, thereby ensuring the pressing effect of the concrete 16 and making the building reliable. The design of the nut gland 13 of the present utility model allows the first body 1 to adjust or limit the angle of the screw through the spherical structure 5 while fixing the wall-piercing screw 14, and enables the second body 2 to always maintain good tight pressing and attachment to the vertical formwork 15. In this way, the direction of the screw can be changed when needed to adapt to specific installation requirements.
[0038] As an improved solution of this embodiment, a guiding portion 6 is provided near the spherical structure 5 of the through hole 11, and the spherical structure 5 abuts against the guiding portion 6.
[0039] Preferably, the guiding portion 6 is an inclined conical surface. The aperture of the guiding portion 6 near the spherical structure 5 is larger than the aperture of the guiding portion 6 away from the spherical structure 5. On the one hand, it can facilitate the wall-piercing screw 14 to pass through the second body 2 from the through hole 11 and play a guiding role; on the other hand, it can also cooperate with the spherical structure 5 to abut and limit the spherical structure 5, so that the spherical structure 5 can be limited regardless of the adjusted angle.
[0040] As an improved solution of this embodiment, it further includes an anti - detachment member 7. The anti - detachment member 7 is sleeved outside the bottom of the first body 1 and is located in the cavity structure 4 of the second body 2. The anti - detachment member 7 can be abutted against the second body 2 at the connection between the through - hole 11 and the cavity structure 4.
[0041] The anti - detachment member 7 is used to prevent the first body 1 from detaching from the second body 2. Since the first body 1 and the second body 2 are detachably connected and the bottom of the first body 1 is inserted into the second body 2, after the first body 1 is inserted into the second body 2, the anti - detachment member 7 is sleeved outside the first body 1 from the end of the cavity structure 4 of the second body 2 far from the through - hole 11. By setting the aperture of the through - hole 11, the outer diameter of the first body 1, and the outer diameter of the anti - detachment member 7, the first body 1 can be inserted into the cavity structure 4 of the second body 2 through the through - hole 11. However, due to the limitation of the outer diameter of the anti - detachment member 7, after the first body 1 is installed with the anti - detachment member 7, the first body 1 cannot be detached from the second body 2 in the original insertion direction. The anti - detachment member 7 forms a blocking structure between the first body 1 and the second body 2 to ensure that the first body 1 will not come out. After the bottom of the first body 1 is inserted into the cavity of the second body 2, the spherical structure 5 is still outside the through - hole 11 of the second body 2 and does not enter the second body 2, so it will not cause any interference to the relative rotation of the first body 1 and the second body 2.
[0042] As an improved solution of this embodiment, there is an installation groove 8 starting from the bottom of the first body 1, and the anti - detachment member 7 is installed in the installation groove 8.
[0043] The installation groove 8 is a recessed part between two limiting steps provided from the bottom of the first body 1. After the anti - detachment member 7 is sleeved on the first body 1, it is installed in the installation groove 8, and the two limiting steps on both sides of the installation groove 8 are used to limit the axial direction of the anti - detachment member 7 to prevent the anti - detachment member 7 from detaching from the first body 1.
[0044] As an improved solution of this embodiment, the anti - detachment member 7 is an elastic retaining ring.
[0045] Preferably, the elastic retaining ring is made of 65Mn material.
[0046] As an improved solution of this embodiment, the inner diameter of the cavity structure 4 near the through - hole 11 end is smaller than the inner diameter of the cavity structure 4 far from the through - hole 11 end.
[0047] Preferably, the air structure is in the shape of a flared mouth. The end with the larger diameter of the flared mouth contacts the vertical template 15, and the end with the smaller diameter of the flared mouth contacts the first body 1 to improve the stability when the second body 2 abuts against the vertical template 15.
[0048] As an improved solution of this embodiment, a pressing part 10 extends outward from the cavity structure 4 at the end of the second body 2 far from the through - hole 11.
[0049] The arrangement of the pressing part 10 can increase the contact area between the second body 2 and the vertical template 15 when they are pressed and fitted, thereby increasing the reliability of the second body 2 when they are in contact with the vertical template 15, and reducing stress concentration, so that the vertical template 15 is more evenly stressed. The second body 2 is also made of cast steel, and the second body 2 is further provided with reinforcing ribs at the end of the pressing part 10 facing the first body 1 to increase the strength of the second body 2.
[0050] Example 2
[0051] This embodiment is another embodiment of a nut gland. This embodiment is similar to Embodiment 1, except that the first body 1 is provided with a hand-tightening portion 9 , which is located above the spherical structure 5 or installed on the top of the spherical structure 5 .
[0052] The provision of the hand-tightening portion 9 can facilitate the rotation of the first body 1 , increase the adhesion force acting on the first body 1 , and be beneficial to adjusting the angle of the first body 1 , thereby adjusting the angle of the through-wall screw 14 .
[0053] As an improvement of this embodiment, the hand-tightening portion 9 is symmetrically arranged with respect to the center axis of the threaded hole 3 .
[0054] The symmetrically arranged hand-tightening part 9 can make the first body 1 evenly stressed when applying force to the first body 1, reduce stress concentration, and increase its service life. Preferably, a mountain shape or a W shape is formed between the hand-tightening part 9 and the first body 1, and the first body 1 is made of cast steel. The mountain shape or the W shape design is convenient for using steel bars and hammer handles to tighten on site, reducing the need for special equipment to tighten. Of course, within the scope of knowledge of those skilled in the art, the hand-tightening part 9 can also be other shapes and structures.
[0055] Example 3
[0056] like Figures 10 to 12 The figure shows an embodiment of a through-wall screw assembly of the utility model, such as the above-mentioned nut gland 13 and through-wall screw 14. The through-wall screw 14 is arranged to penetrate the first body 1 and the second body 2, and the through-wall screw 14 is threadedly connected to the first body 1 through the threaded hole 3.
[0057] The wall-piercing screw rod 14 passes through the nut gland 13 and then sequentially penetrates through two vertical formworks 15 and the concrete 16 in the middle of the vertical formworks 15. And after the wall-piercing screw rod 14 passes through the second vertical formwork 15, a nut gland 13 is also used to press the vertical formwork 15, so that the wall-piercing screw rod 14 assembly has the function of locking the two vertical formworks 15. For the wall-piercing screw rod assembly of the present utility model, the adjustment of the angle of the wall-piercing screw rod 14 can be realized by adjusting the abutting angle between the first body 1 and the second body 2. Furthermore, when the openings between the two vertical formworks 15 cannot be set at the same horizontal height, the nut gland 13 can still be always pressed and fitted with the vertical formwork 15, which improves the applicable occasions of the wall-piercing screw rod 14 assembly and expands its versatility.
[0058] Obviously, the above embodiments of the present utility model are merely examples for clearly explaining the present utility model, rather than limiting the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.
Claims
1. A nut gland, characterized in that: The invention comprises a first body (1) and a second body (2), wherein a threaded hole (3) is provided in the first body (1), the second body (2) is provided with an open cavity structure (4), and the second body (2) is provided with a through hole (11), the through hole (11) is connected with the cavity structure (4), the bottom of the first body (1) passes through the through hole (11) and is inserted into the cavity structure (4); and the first body (1) is provided with a spherical structure (5) near the through hole (11).
2. The nut gland according to claim 1, characterized in that: The through hole (11) is provided with a guide portion (6) near the spherical structure (5), and the spherical structure (5) abuts against the guide portion (6).
3. The nut gland according to claim 2, characterized in that: It also includes an anti-slip component (7), which is sleeved outside the bottom of the first body (1) and located in the cavity structure (4) of the second body (2). The anti-slip component (7) can abut against the second body (2) at the connection point between the through hole (11) and the cavity structure (4).
4. The nut gland according to claim 3, characterized in that: A mounting groove (8) is provided at the bottom of the first body (1), and the anti-dropping member (7) is installed in the mounting groove (8).
5. The nut gland according to claim 4, characterized in that: The anti-dropping component (7) is an elastic retaining ring.
6. The nut gland according to any one of claims 1 to 5, characterized in that: The first body (1) is provided with a hand-tightening portion (9), and the hand-tightening portion (9) is located above the spherical structure (5) or installed on the top of the spherical structure (5).
7. The nut gland according to claim 6, characterized in that: The hand-tightening portion (9) is symmetrically arranged with respect to the central axis of the threaded hole (3).
8. The nut gland according to claim 1, characterized in that: The inner diameter of the end of the cavity structure (4) close to the through hole (11) is smaller than the inner diameter of the end of the cavity structure (4) far from the through hole (11).
9. The nut gland according to claim 8, characterized in that: The second body (2) has a pressing portion (10) extending outwardly from the cavity structure (4) at the end away from the through hole (11).
10. A through-wall screw assembly, characterized in that: The nut gland (13) and the through-wall screw (14) as described in any one of claims 1 to 9, wherein the through-wall screw (14) is arranged to penetrate the first body (1) and the second body (2), and the through-wall screw (14) is threadedly connected to the first body (1) through the threaded hole (3).