Assembly self-locking type external wall heat preservation anchor bolt and method
By designing the split bolt main body and self-locking structure, the problem of easy loosening of the bolt fixing structure is solved, and the stable fixation of the exterior wall insulation board is achieved, reducing safety hazards and reducing insulation effect.
Patent Information
- Application Number
- CN202510409816.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-06-06
AI Technical Summary
In the prior art, the problem of the bolt fixing structure being easy to loosen, resulting in loosening or falling off the exterior wall insulation board, which poses a major safety hazard and reduces the insulation effect.
The self-locking exterior wall insulation anchor bolt is used, and the bolt main body is divided into two halves. Through the design of the external thread part and the internal thread part, the notch structure and elastic parts are used to achieve the self-locking effect and prevent loosening.
It effectively reduces the probability of loosening caused by vibration, extends the time for stable fixation of the bolt fixation structure, ensures stable fixation of the insulation board, and reduces safety hazards.
Smart Images
Figure CN120100807A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of anchor bolts, and in particular to an assembling method of a self-locking external wall thermal insulation anchor bolt. Background Art
[0002] Exterior wall insulation panels are generally fixed to the wall by anchor bolts, and are generally connected using expansion bolt structures, which facilitates the assembly of the insulation panels. However, after long-term use, the threaded connection structure will become loose due to vibration and the like, and the bolt structure will gradually rotate out of the nut structure, resulting in loss of the fixed connection effect, causing the insulation panel to loosen or fall off, posing a major safety hazard or significantly reducing the insulation effect.
[0003] In the prior art, the problem that the bolt fixing structure is easy to loosen needs to be solved. Summary of the invention
[0004] The technical problem to be solved by the present invention is to provide a self-locking exterior wall insulation anchor bolt and method for assembling the above-mentioned technical deficiencies, which solves the problem of easy loosening of the bolt fixing structure in the prior art.
[0005] The technical solution adopted by the present invention is to provide an assembled self-locking external wall insulation anchor bolt, comprising: The bolt body comprises a first half body and a second half body which are arranged in left and right parts, the first half body and the second half body are opposite to each other and connected to form the bolt body, the first half body and the second half body are arranged to move relative to each other in the up-down direction, and the outer arc surfaces of the lower parts of the first half body and the second half body are both provided with external threads; The nut is used to be set in the wall and has an internal threaded portion. The bolt body is threadedly connected to the internal threaded portion. The internal threaded portion has a plurality of notches. When the first half body and the second half body move relatively, the end side of the external threaded portion of the first half body or the second half body is clamped in the notch.
[0006] To further optimize the technical solution, the nut is pre-set in the wall.
[0007] To further optimize the technical solution, the lower part of the nut is provided with an expansion tube, the nut body passes through the internal threaded part and extends into the expansion tube, and the outer side of the expansion tube is used to be clamped in the wall.
[0008] Further optimization of this technical solution also includes: The elastic member has one end acting on the first half body and the other end acting on the second half body, and is used for providing a force for relative movement between the first half body and the second half body.
[0009] To further optimize the technical solution, the elastic member is a compression spring, the first half body has a receiving groove, the second half body has a guide member, the guide member is raised and lowered in the receiving groove, one end of the compression spring is set in the receiving groove, and the other end acts on the guide member to provide a thrust to move the first half body and the second half body away from each other.
[0010] To further optimize the technical solution, the upper portion of the accommodating groove has a limiting groove, and the guide member is lifted and lowered in the limiting groove. When the lower end of the guide member abuts against the bottom end of the limiting groove, the first half body and the second half body are opposite to each other.
[0011] Further optimization of this technical solution also includes: The gasket is sleeved on the outside of the bolt body and is used for abutting against the insulation board.
[0012] To further optimize the technical solution, the upper portion of the gasket has a groove, the screw head of the bolt body is located in the groove, and the inner wall of the groove abuts against the outer peripheral surface of the screw head.
[0013] A method for using an assembled self-locking external wall insulation anchor bolt is also proposed, wherein the assembled self-locking external wall insulation anchor bolt is used to fix and connect the insulation board on the outside of the wall, the first half body and the second half body are arranged opposite to each other, and the bolt body is formed by butting together, and the screw rod of the bolt body passes through the insulation board and is threadedly connected with the nut, when the bolt body is loosened, the first half body and the second half body are relatively displaced, the external thread part is misplaced, and the end side of the external thread part is clamped at the notch of the internal thread part to prevent loosening The beneficial effects of the present invention are: 1. The bolt body is divided into two halves, the first half and the second half are separated to reduce the rotation consistency during vibration. When the two cannot rotate in opposite directions synchronously, it is not easy to reversely rotate out of the threaded connection structure, thereby reducing the probability of loosening caused by vibration and greatly extending the stable fixing time of the bolt fixing structure.
[0014] 2. The first half body and the second half body move relative to each other along the axial direction, so that the first half body and the second half body are misaligned, and the end side of the external threaded portion is exposed, which is easy to be engaged in the notch position, which is beneficial to avoid continuous loosening of the threaded connection structure caused by vibration and achieve the effect of preventing loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the assembly structure of the present invention; Figure 2 It is a schematic diagram of the vertical cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the nut structure of the present invention; Figure 4 It is a schematic diagram of the gasket structure of the present invention; Figure 5 It is a schematic diagram of the misaligned structure of the external thread portion of the present invention; Figure 6 For the present invention Figure 5 The enlarged schematic diagram of the misaligned structure of the external threaded part at a in the middle; Figure 7 It is a schematic diagram of the left and right split structure of the bolt body of the present invention; Explanation of the markings in the figure: 1. bolt body; 101. first half body; 1011. receiving groove; 1012. limiting groove; 102. second half body; 1021. guide member; 103. external threaded portion; 104. screw head; 2. nut; 201. internal threaded portion; 202. notch; 203. expansion tube; 3. elastic member; 4. gasket; 401. groove. DETAILED DESCRIPTION
[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0018] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0020] like Figure 1-7As shown, the assembled self-locking external wall insulation anchor bolt includes: a bolt body 1, including a first half body 101 and a second half body 102 which are arranged as left and right parts, the first half body 101 and the second half body 102 are opposite to each other and then butted together to form the bolt body 1, the first half body 101 and the second half body 102 are arranged to move relatively along the up and down directions, and the outer arc surfaces of the lower parts of the first half body 101 and the second half body 102 are both provided with external threaded parts 103; a nut 2, which is used to be arranged in the wall, and has an internal threaded part 201, the bolt body 1 is threadedly connected with the internal threaded part 201, and the internal threaded part 201 has a plurality of notches 202, and when the first half body 101 and the second half body 102 move relatively, the end side of the external threaded part 103 of the first half body 101 or the second half body 102 is clamped in the notch 202.
[0021] When in use, the bolt body 1 includes an upper screw head 104 and a lower screw rod. With the axial direction as the up and down direction, the bolt body 1 is composed of a first half body 101 and a second half body 102 which are arranged in left and right parts and connected to each other. The nut 2 is arranged in the wall. After the insulation board is installed on the wall, the screw rod passes through the insulation board and is threadedly connected with the internal thread part 201 of the nut 2. The first half body 101 and the second half body 102 are in a separate state and naturally have a tendency to separate, or under the action of internal force or external force, the first half body 101 and the second half body 102 can maintain a tendency to move away from each other in the axial direction. When vibration occurs, the rotation trends of the first half body 101 and the second half body 102 may be asynchronous, reducing the probability of synchronous reverse loosening. When loosening begins to occur, when the end sides of the external threaded portions 103 of the first half body 101 and the second half body 102 move to the notch 202, the external threaded portions 103 of the first half body 101 and the second half body 102 are misaligned, so that the end sides of the external threaded portions 103 are exposed, and can be engaged at the edge position of the notch 202, thereby preventing the first half body 101 and the second half body 102 from continuing to rotate out in the reverse direction. At the same time, the rotation inconsistency of the first half body 101 and the second half body 102 can be further strengthened, the probability of continuous loosening can be reduced, and the anti-loosening effect can be played.
[0022] While maintaining the effectiveness of the threaded connection structure, the notches 202 can be arranged relatively densely, so that the bolt body 1 is slightly loosened or the end side of the external thread portion 103 is clamped at the notch 202 when tightened, reducing the looseness and maintaining a good fixed state. The notch 202 can penetrate the internal thread portion 201 along the axial direction.
[0023] It should be noted that although there is a clearance space for the threaded fit, due to the limitation of the thread structure, the end side of the external threaded portion 103 is clamped at the notch 202, which does not mean that it completely enters the notch 202, but abuts against the edge of the notch 202 of the internal threaded portion 201. Through the slight misalignment of the external threaded portion 103, the friction force within the pitch is increased or the obstruction effect of the end side of the external threaded portion 103 abutting against the edge of the notch 202 is increased, thereby preventing loosening. The end side of the external threaded portion 103 is the cut end face of the threaded portion when the screw is split into left and right parts.
[0024] Furthermore, the nut 2 is pre-set in the wall. An expansion tube 203 is provided at the lower part of the nut 2. The main body of the nut 2 passes through the internal threaded portion 201 and extends into the expansion tube 203. The outer side of the expansion tube 203 is used to be clamped in the wall.
[0025] When in use, the nut 2 can be pre-buried in the wall, or fixed in a blind hole after drilling a hole in the wall, or assembled and fixed in the wall using the principle of using expansion bolts. The expansion tube 203 at the lower part of the nut 2 has a barb structure on the outside, which can be inserted into the blind hole of the wall, penetrate the bolt body 1, and then be squeezed and fixed on the wall. The expansion tube 203 is a prior art, and those skilled in the art can select a suitable existing conventional technology.
[0026] Furthermore, it also includes: an elastic member 3, one end of which acts on the first half body 101, and the other end of which acts on the second half body 102, for providing a force for the relative movement of the first half body 101 and the second half body 102. The elastic member 3 is a compression spring, the first half body 101 has a receiving groove 1011, the second half body 102 has a guide member 1021, the guide member 1021 is arranged in the receiving groove 1011 for lifting, one end of the compression spring is arranged in the receiving groove 1011, and the other end acts on the guide member 1021, for providing a thrust for the first half body 101 and the second half body 102 to move away from each other. The upper part of the receiving groove 1011 has a limiting groove 1012, the guide member 1021 is arranged in the limiting groove 1012 for lifting, and when the lower end of the guide member 1021 abuts against the bottom end of the limiting groove 1012, the first half body 101 and the second half body 102 are opposite to each other.
[0027] When in use, the first half body 101 and the second half body 102 can provide a relatively distant force through the elastic member 3, so that the end side of the external threaded portion 103 is more easily clamped at the notch 202. The elastic member 3 can provide thrust for the compression spring, the lower end of the compression spring is fixed at the lower end of the receiving groove 1011, and the upper end abuts against the lower end of the guide member 1021, providing a force to push the guide member 1021 upward, that is, the second half body 102 is displaced upward relative to the first half body 101 to cause a small misalignment of the threaded portion, so that the end side of the external threaded portion 103 is exposed and clamped at the notch 202. The guide member 1021 rises and falls in the receiving groove 1011, and can also form a connection, so that the first half body 101 and the second half body 102 can be relatively stably docked in a positive direction. The receiving groove 1011 can be located at the screw position. In order to facilitate processing and sufficient installation space, a groove structure can also be provided on the second half body 102 to be opposite to the receiving groove 1011, so as to accommodate a compression spring with a larger diameter and provide sufficient thrust.
[0028] The guide member 1021 may be semi-cylindrical, the limiting groove 1012 may be a semi-circular groove structure adapted to the guide member 1021, the limiting groove 1012 may be located in the upper part of the receiving groove 1011, the radius of the limiting groove 1012 is greater than the radius of the lower part of the receiving groove 1011, the guide member 1021 is raised and lowered in the limiting groove 1012, and when it is located at the bottom of the limiting groove 1012, the first half body 101 and the second half body 102 are directly opposite, and the external threaded portion 103 does not have an upper and lower misalignment, and the first half body 101 and the second half body 102 are connected to form the bolt body 1, so that the bolt body 1 is convenient to be screwed into the nut 2. There may be a gap between the guide member 1021 and the inner wall of the limiting groove 1012.
[0029] Furthermore, it also includes a gasket 4, which is sleeved on the outside of the bolt body 1 and is used to abut on the insulation board. The gasket 4 has a groove 401 on the upper part, and the screw head 104 of the bolt body 1 is located in the groove 401, and the inner wall of the groove 401 abuts against the outer peripheral surface of the screw head 104.
[0030] When in use, the screw head 104 of the bolt body 1 presses on the gasket 4, which can better fix the insulation board. At the same time, the gasket 4 is sleeved on the outside of the screw rod or the screw head 104, which can limit the first half body 101 and the second half body 102 from being too separated, and is convenient for the whole to be screwed into the nut 2. The gasket 4 is provided with a groove 401 and sleeved on the outside of the screw head 104, so that the relative state of the first half body 101 and the second half body 102 is more stable.
[0031] A method for using an assembled self-locking exterior wall insulation anchor bolt is also proposed. The assembled self-locking exterior wall insulation anchor bolt is used to fix the insulation board on the outside of the wall. The first half body 101 and the second half body 102 are arranged opposite to each other and connected to form a bolt body 1. The screw of the bolt body 1 passes through the insulation board and is threadedly connected with the nut 2. When the bolt body 1 is loosened, the first half body 101 and the second half body 102 are relatively displaced, the external thread part 103 is misplaced, and the end side of the external thread part 103 is clamped at the notch 202 of the internal thread part 201 to prevent loosening.
[0032] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. An assembled self-locking exterior wall insulation anchor bolt, characterized in that: include: The bolt body (1) comprises a first half body (101) and a second half body (102) which are arranged in left and right parts, the first half body (101) and the second half body (102) are arranged opposite to each other and butted against each other to form the bolt body (1), the first half body (101) and the second half body (102) are arranged to move relative to each other in the up-down direction, and the outer arc surfaces of the lower parts of the first half body (101) and the second half body (102) are both provided with external threads (103); The nut (2) is used to be arranged in a wall, and has an internal threaded portion (201). The bolt body (1) is threadedly connected to the internal threaded portion (201). The internal threaded portion (201) has a plurality of notches (202). When the first half body (101) and the second half body (102) move relatively, the end side of the external threaded portion (103) of the first half body (101) or the second half body (102) is clamped in the notch (202).
2. The self-locking external wall insulation anchor bolt according to claim 1, characterized in that: The nut (2) is preset in the wall.
3. The self-locking external wall insulation anchor bolt according to claim 1, characterized in that: The nut (2) has an expansion tube (203) at the lower part, and the nut (2) body passes through the internal threaded portion (201) and extends into the expansion tube (203), and the outer side of the expansion tube (203) is used for clamping in the wall.
4. The self-locking external wall insulation anchor bolt according to claim 1, characterized in that: Also includes: The elastic member (3) has one end acting on the first half body (101) and the other end acting on the second half body (102), and is used to provide a force for relative movement between the first half body (101) and the second half body (102).
5. The self-locking external wall insulation anchor bolt according to claim 4, characterized in that: The elastic member (3) is a compression spring. The first half body (101) is provided with a receiving groove (1011). The second half body (102) is provided with a guide member (1021). The guide member (1021) is arranged in the receiving groove (1011) for lifting. One end of the compression spring is arranged in the receiving groove (1011), and the other end acts on the guide member (1021) to provide a thrust for moving the first half body (101) and the second half body (102) away from each other.
6. The self-locking external wall insulation anchor bolt according to claim 5, characterized in that: The upper portion of the accommodating groove (1011) is provided with a limiting groove (1012), and the guiding member (1021) is lifted and lowered in the limiting groove (1012). When the lower end of the guiding member (1021) abuts against the bottom end of the limiting groove (1012), the first half body (101) and the second half body (102) are directly opposite to each other.
7. The self-locking external wall insulation anchor bolt according to claim 1, characterized in that: Also includes: A gasket (4) is sleeved on the outside of the bolt body (1) and is used to abut against the insulation board.
8. The self-locking external wall insulation anchor bolt according to claim 7, characterized in that: The gasket (4) has a groove (401) on its upper portion, the screw head (104) of the bolt body (1) is located in the groove (401), and the inner wall of the groove (401) abuts against the outer peripheral surface of the screw head (104).
9. A method for assembling a self-locking external wall insulation anchor bolt, characterized in that: The assembled self-locking exterior wall insulation anchor bolt according to any one of claims 1 to 7 is used to fix the insulation board on the outside of the wall, the first half body (101) and the second half body (102) are arranged opposite to each other and connected to form the bolt body (1), the screw of the bolt body (1) passes through the insulation board and is threadedly connected with the nut (2), when the bolt body (1) is loosened, the first half body (101) and the second half body (102) are relatively displaced, the external thread part (103) is misplaced, and the end side of the external thread part (103) is clamped at the notch (202) of the internal thread part (201) to prevent loosening.