A connecting structure for thermal insulation walls

Abstract

This utility model relates to the field of thermal insulation wall technology, specifically disclosing a connection structure for thermal insulation walls, including a sleeve. A first protective plate is provided at the right end of the sleeve, and a second protective plate is fixedly connected to the left side of the sleeve. A threaded rod is slidably connected inside the sleeve, with a tapered head threaded to one end of the threaded rod. An expansion sleeve is slidably connected to the outer wall of the threaded rod. By setting multiple levels of expansion sleeves, appropriate sleeves can be flexibly selected for expansion anchoring according to different foundation wall environments. When facing dense walls, a suitable sleeve can be selected to achieve a stable connection; when encountering loose walls, a higher-level sleeve can be used to enhance the interlocking effect. This structure enables the connection structure to maintain reliable anchoring in various wall environments, effectively improving the adaptability and stability of the thermal insulation wall connection, expanding the application range of the connection structure, and meeting diverse installation needs.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation wall technology, specifically a connection structure for thermal insulation walls. Background Technology

[0002] Thermal insulation walls are an important component of building envelopes, primarily used to block heat transfer between indoor and outdoor spaces to maintain stable indoor temperatures. By combining the insulation layer with the wall base, they form an integrated structure with thermal insulation functions, playing a crucial role in building energy conservation and improving living comfort.

[0003] In the prior art, the connection structure for thermal insulation walls is a component used to fix the insulation layer to the base wall. Through specific structural design, the insulation layer is firmly attached to the wall surface, ensuring the stability of the overall structure of the thermal insulation wall.

[0004] However, existing connection structures for insulated walls often use single-stage expansion sleeves when using expansion bolts. This structure is difficult to adapt to different types of foundation wall environments. When facing walls with large differences in texture, it cannot form a stable anchoring effect, affecting the applicability and reliability of the connection structure and making it difficult to meet diverse installation needs. Utility Model Content

[0005] The purpose of this utility model is to provide a connection structure for thermal insulation walls to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a sleeve, with a protective disc at the right end of the sleeve, a second protective disc fixedly connected to the left side of the sleeve, a threaded rod slidably connected inside the sleeve, a tapered head threadedly connected to one end of the threaded rod, an expansion sleeve slidably connected to the outer wall of the threaded rod, an anchoring sawtooth 1 fixedly connected to the outer wall of the expansion sleeve 1, an expansion sleeve 2 sleeved on the outer wall of the expansion sleeve 1, an anchoring sawtooth 2 fixedly connected to the outer wall of the expansion sleeve 2, an expansion sleeve 3 sleeved on the outer wall of the expansion sleeve 2, and an anchoring sawtooth 3 fixedly connected to the outer wall of the expansion sleeve 3.

[0007] Preferably, the protective disc one is fixedly connected to the side of the sleeve facing the sleeve with an embedded tooth two, and the protective disc two is fixedly connected to the side of the sleeve facing the sleeve with an embedded tooth one.

[0008] Preferably, the cone has a threaded groove inside, and the outer wall of the threaded rod has threads, with the threads on the outer wall of the threaded rod engaging with the inner wall of the threaded groove.

[0009] Preferably, the inner wall of the second expansion sleeve is provided with a serrated groove 1, the inner wall of the third expansion sleeve is provided with a serrated groove 2, the cross section of the first anchoring serrated groove is a right triangle, the cross section of the second anchoring serrated groove is a right triangle, and the cross section of the third anchoring serrated groove is an isosceles triangle.

[0010] Preferably, the first anchoring saw tooth and the second anchoring saw tooth face opposite directions, the inner wall of the first saw tooth groove fits the outer wall of the first anchoring saw tooth, and the inner wall of the second saw tooth groove fits the outer wall of the second anchoring saw tooth.

[0011] Preferably, one end of the cone has a quadrangular prism structure, and the edge of the cone corresponds to the notch position of the expansion sleeve.

[0012] Preferably, the sleeve is fitted onto the left outer wall of the threaded rod, and the expansion sleeve is fitted onto the right outer wall of the threaded rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up multi-level expansion sleeves, the appropriate sleeves can be flexibly selected for expansion anchoring according to different foundation wall environments. When facing dense walls, a suitable sleeve can be selected to achieve a stable connection. When encountering loose walls, a higher-level sleeve can be used to enhance the interlocking effect. This structure enables the connection structure to maintain reliable anchoring in various wall environments, effectively improving the adaptability and stability of the insulation wall connection, expanding the applicable range of the connection structure, and meeting diverse installation needs. Attached Figure Description

[0014] Figure 1 This is a front perspective view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is an exploded view of the structure of this utility model;

[0017] Figure 4 This is a partial structural cross-sectional view of the threaded rod of this utility model;

[0018] Figure 5 This is a partial structural exploded view of the expansion sleeve of this utility model;

[0019] Figure 6 This is a cross-sectional view of the present invention.

[0020] In the diagram: 1. Sleeve; 2. Protective disc one; 3. Expansion sleeve one; 4. Expansion sleeve two; 5. Expansion sleeve three; 6. Threaded rod; 7. Cone; 8. Embedded tooth one; 9. Embedded tooth two; 10. Threaded groove; 11. Anchoring sawtooth one; 12. Anchoring sawtooth two; 13. Anchoring sawtooth three; 14. Protective disc two; 15. Sawtooth groove one; 16. Sawtooth groove two. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1

[0023] Please see Figures 1-6 This utility model provides a technical solution: It includes a sleeve 1, with a protective disc 2 at the right end and a protective disc 14 fixedly connected to the left side of the sleeve 1. The sleeve 1 serves as the basic component of the connecting structure, with protective discs 2 and 14 connected to its two ends respectively, forming a support and limiting frame for the protective layer sandwiched in the middle. A second embedded tooth 9 is fixedly connected to the side of the protective disc 2 facing the sleeve 1, and a first embedded tooth 8 is fixedly connected to the side of the protective disc 14 facing the sleeve 1. The embedded teeth 9 and 8 on the protective discs 2 and 14 are positioned facing the sleeve 1, allowing the insulation layer to be embedded during installation, enhancing the connection stability between the protective disc and the insulation layer, and preventing the protective disc from sliding. A threaded rod 6 is slidably connected inside the sleeve 1. One end of the threaded rod 6 is threaded to a cone 7. The cone 7 has a threaded groove 10 inside. The outer wall of the threaded rod 6 is threaded, and the thread on the outer wall of the threaded rod 6 meshes with the inner wall of the threaded groove 10. The threaded rod 6 and the cone 7 are connected by threads. The threaded groove 10 of the cone 7 meshes with the thread on the outer wall of the threaded rod 6. By rotating the threaded rod 6, the axial displacement of the cone 7 can be precisely controlled to realize the extrusion operation of the expansion sleeve. One end of the cone 7 has a quadrangular prism structure. The edge of the cone 7 corresponds to the notch position of the expansion sleeve 3. The quadrangular prism structure of the cone 7 and the notch of the expansion sleeve 3 correspond to each other to prevent the cone 7 from rotating synchronously when the threaded rod 6 rotates, ensuring that the cone 7 only moves axially to extrude the expansion sleeve.

[0024] During operation, first drill holes at predetermined positions in the insulated wall. Insert the sleeve 1, along with the protective discs 2 and 14 at both ends, into the holes. The insertion teeth 9 on the sleeve 1 side of the protective disc 2 and 8 on the sleeve 1 side of the protective disc 14 are respectively inserted into the corresponding positions of the insulation layer. The interlocking action of the insertion teeth secures the protective discs, preventing them from sliding during installation. At this point, the sleeve 1 forms a support and limiting frame for the intermediate protective layer. Then, insert the threaded rod 6 from the left side of the sleeve 1, allowing its right end to extend out of the sleeve 1. Pass the cone 7 through the internal threaded groove 10. Engage the threaded rod 6 with the right end of the threaded rod to ensure complete thread engagement. Then adjust the position of the cone 7 so that the edge of the four-sided prism structure at one end is aligned with the notch of the expansion sleeve 3 and inserted. The engagement of the four-sided prism and the notch restricts the rotation of the cone 7. Finally, use a tool to rotate the left end of the threaded rod 6. The threaded drive drives the cone 7 to move axially to the right. During the movement, the cone 7 only undergoes axial displacement due to the anti-rotation constraint of the four-sided prism and the notch. It continuously squeezes the expansion sleeve 3, causing it to expand radially and engage with the wall base, thus completing the fixed connection of the insulation wall.

[0025] Example 2

[0026] Based on Embodiment 1, an expansion sleeve 3 is slidably connected to the outer wall of the threaded rod 6. An anchoring sawtooth 11 is fixedly connected to the outer wall of the expansion sleeve 3. The cross-section of the anchoring sawtooth 11 is a right-angled triangle. The three constitute a primary expansion unit. The sliding fit between the threaded rod 6 and the expansion sleeve 3 provides the basis for graded expansion. The right-angled triangle cross-section of the anchoring sawtooth 11 can form a one-way lock during expansion, enhancing the engagement with the foundation wall. An expansion sleeve 4 is sleeved on the outer wall of the expansion sleeve 3. An anchoring sawtooth 12 is fixedly connected to the outer wall of the expansion sleeve 4. The cross-section of the anchoring sawtooth 12 is a right-angled triangle. The anchoring sawtooth 11 and the anchoring sawtooth 12 face opposite directions. The secondary expansion unit is sleeved on the outside of the primary unit. The oppositely arranged right-angled triangle sawtooth can resist loosening. An expansion sleeve 5 is sleeved on the outer wall of the expansion sleeve 4. An anchoring sawtooth 11 is fixedly connected to the outer wall of the expansion sleeve 5. 3. The cross-section of the anchoring sawtooth 13 is an isosceles triangle. The three-level expansion unit further extends the anchoring effect. The symmetrical structure of the isosceles triangular sawtooth can achieve bidirectional balanced interlocking and adapt to complex wall stress distribution. The inner wall of the expansion sleeve 2 4 is provided with sawtooth groove 15, and the inner wall of the expansion sleeve 3 5 is provided with sawtooth groove 2 16. The inner wall of sawtooth groove 15 fits the shape of the outer wall of anchoring sawtooth 11, and the inner wall of sawtooth groove 2 16 fits the shape of the outer wall of anchoring sawtooth 2 12. The precise fit between the inner wall sawtooth groove and the corresponding outer wall sawtooth ensures smooth sliding between sleeves and stable transmission of expansion force, avoiding local stress concentration. Sleeve 1 is sleeved on the left outer wall of threaded rod 6, and expansion sleeve 1 3 is sleeved on the right outer wall of threaded rod 6. The two form left and right partitions on threaded rod 6. The left sleeve 1 provides structural support and positioning, and the right multi-level expansion sleeve is responsible for wall anchoring, together forming a complete connection system.

[0027] During operation, first drill holes at the predetermined positions in the insulated wall. Place sleeve 1 on the left outer wall of threaded rod 6 to form the basic structure. Then, select expansion sleeves according to the wall surface environment. For harder walls, only expansion sleeve 3 is placed on the right outer wall of threaded rod 6, sliding with it. For medium-hardness walls, expansion sleeve 4 is placed over expansion sleeve 3, allowing the sawtooth groove 15 to engage with the anchor sawtooth 11. For looser walls, expansion sleeve 5 is placed over expansion sleeve 4, allowing the sawtooth groove 16 to engage with the anchor sawtooth 12. At this point, the expansion units of the corresponding level are installed. Each sleeve ensures smooth sliding and stable transmission of expansion force through the engagement of the sawtooth and sawtooth groove. Then, place the assembled structure into the wall hole, and finally, insert the cone 7 through the internal thread groove 10 onto the right outer wall of threaded rod 6. The threaded connection at the end is adjusted so that the square prism structure of the cone 7 corresponds to the notch of the expansion sleeve 3. Finally, the threaded rod 6 is rotated with a tool. Under the action of the threaded transmission, the cone 7 moves axially and squeezes the innermost expansion sleeve installed. When only the first level is used, the expansion sleeve 3 expands radially, and the anchoring saw teeth 11 form a one-way lock and bite with the wall. When the second level is used, the expansion sleeve 3 expands first, and the expansion sleeve 4 is pushed to expand through the cooperation of the anchoring saw teeth 11 and the saw tooth groove 15. The anchoring saw teeth 12 strengthen the bite from the opposite direction to prevent loosening. When the third level is used, on the basis of the expansion of the first two levels, the expansion sleeve 4 drives the expansion sleeve 5 to expand. The anchoring saw teeth 13 achieve bidirectional balanced bite, and finally completes the expansion anchoring of the corresponding level, realizing the stable connection of the thermal insulation wall.

[0028] In actual use, first drill holes at the predetermined positions in the insulated wall, then insert the sleeve 1 along with the two end guard plates 12 and 14 into the holes, ensuring that the insertion teeth 9 and 8 on the side of the guard plate facing the sleeve 1 are embedded into the insulation layer, fixing the guard plates to prevent slippage. The sleeve 1 forms a support and limiting frame for the intermediate protective layer. Then, the threaded rod 6 is inserted from the left side of the sleeve 1 and extends out from the right end. Depending on the wall surface, an expansion sleeve is installed. For harder walls, only expansion sleeve 3 is installed on the right side of the threaded rod 6. For medium-quality walls, expansion sleeve 4 is added so that the sawtooth groove 15 and the anchor sawtooth are aligned. First, fit the 11-11 joint with the looser wall surface, then fit the expansion sleeve 3-5 to allow the sawtooth groove 2-16 to engage with the anchor sawtooth 2-12. Next, engage the cone 7 with the right end of the threaded rod 6 through the threaded groove 10, adjusting its quadrangular prism structure to align with the notch of the expansion sleeve 3 to prevent rotation. Finally, rotate the left end of the threaded rod 6, and the cone 7 moves axially to squeeze the sleeve. At the first level, the expansion sleeve 3-1 expands radially and engages. At the second level, it pushes the expansion sleeve 2-4 to enhance resistance to loosening. At the third level, it drives the expansion sleeve 3-5 to engage bidirectionally and evenly, completing the corresponding level of anchoring and achieving a stable connection.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure for thermal insulation walls, characterized in that: Including the sleeve (1); The right end of the sleeve (1) is provided with a protective disc 1 (2), the left side of the sleeve (1) is fixedly connected with a protective disc 2 (14), the inside of the sleeve (1) is slidably connected with a threaded rod (6), and one end of the threaded rod (6) is threadedly connected with a cone head (7). The outer wall of the threaded rod (6) is slidably connected to an expansion sleeve one (3), the outer wall of the expansion sleeve one (3) is fixedly connected to an anchoring sawtooth one (11), the outer wall of the expansion sleeve one (3) is sleeved with an expansion sleeve two (4), the outer wall of the expansion sleeve two (4) is fixedly connected to an anchoring sawtooth two (12), the outer wall of the expansion sleeve two (4) is sleeved with an expansion sleeve three (5), and the outer wall of the expansion sleeve three (5) is fixedly connected to an anchoring sawtooth three (13).

2. The connection structure for thermal insulation walls according to claim 1, characterized in that: The first protective disc (2) is fixedly connected to the side of the sleeve (1) with the second embedded tooth (9), and the second protective disc (14) is fixedly connected to the side of the sleeve (1) with the first embedded tooth (8).

3. The connection structure for thermal insulation walls according to claim 1, characterized in that: The cone (7) has a threaded groove (10) inside, and the outer wall of the threaded rod (6) is provided with threads. The threads on the outer wall of the threaded rod (6) mesh with the inner wall of the threaded groove (10).

4. The connection structure for thermal insulation walls according to claim 1, characterized in that: The inner wall of the second expansion sleeve (4) is provided with a serrated groove (15), the inner wall of the third expansion sleeve (5) is provided with a serrated groove (16), the cross section of the first anchoring serrated tooth (11) is a right triangle, the cross section of the second anchoring serrated tooth (12) is a right triangle, and the cross section of the third anchoring serrated tooth (13) is an isosceles triangle.

5. A connection structure for an insulated wall according to claim 4, characterized in that: The first anchoring saw tooth (11) and the second anchoring saw tooth (12) are oriented oppositely. The inner wall of the first saw tooth groove (15) fits the shape of the outer wall of the first anchoring saw tooth (11), and the inner wall of the second saw tooth groove (16) fits the shape of the outer wall of the second anchoring saw tooth (12).

6. A connection structure for an insulated wall according to claim 1, characterized in that: One end of the cone (7) is a quadrangular prism structure, and the edge of the cone (7) corresponds to the notch position of the expansion sleeve (3).

7. A connection structure for an insulated wall according to claim 1, characterized in that: The sleeve (1) is fitted onto the left outer wall of the threaded rod (6), and the expansion sleeve (3) is fitted onto the right outer wall of the threaded rod (6).

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