Anti-loose sleeve special thread

Abstract

The utility model discloses an anti-loose sleeve special thread, and relates to the technical field of wall bushings. The sleeve is in threaded connection with the center head, the center head is made of PVC materials, threads of the center head are special threads, the special threads of the center head comprise triangular thread teeth, tooth bottom spiral grooves are machined in the tooth bottoms of the two triangular thread teeth, tooth tops of the triangular thread teeth are machined into spiral ring faces, and tooth top spiral grooves are machined in the spiral ring faces. The utility model has the beneficial effects that the casing pipe and the central head are connected through the special thread, the special thread can deform to adapt to the thread size of the casing pipe and prevent loosening, the central head and the casing pipe as well as the central head and the penetrating pipe are sealed through packing, and the waterproof performance is better; the inner rubber sleeve and the outer rubber sleeve are filled with perlite, when the underground water level rises, the perlite expands, the packing filler is pushed to be tighter, and the waterproof effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of through-wall sleeve technology, and in particular to a special thread for an anti-loosening sleeve. Background Technology

[0002] Waterproofing of basement wall penetration sleeves is crucial. Improper handling can lead to severe water immersion inside the building, affecting its lifespan and safety. Currently, waterproof sleeves are pre-embedded for basement pipe penetrations, effectively solving the leakage problem between the sleeve and the concrete. However, leakage between the sleeve and the internal pipes still occurs occasionally. Currently, the internal waterproofing of the sleeve uses a combination of hemp fiber, high-strength cement, and a sealant. However, this method has a drawback: the hemp fiber requires specific wrapping techniques, is highly dependent on human factors, and uneven wrapping can easily result in uneven sealing around the perimeter, leading to incomplete sealing. Utility Model Content

[0003] To address the current problems encountered in waterproofing through-wall sleeves, this utility model provides a special anti-loosening sleeve thread.

[0004] The technical solution provided by this utility model is: a special thread for anti-loosening sleeve, including a sleeve, a center head installed in the inner hole of the sleeve, the sleeve and the center head being threadedly connected, the center head being made of PVC material, the thread of the center head being a special thread, the special thread of the center head including triangular thread teeth, a tooth root helical groove being machined at the tooth root of the two triangular thread teeth, the tooth tip of the triangular thread teeth being machined into a helical annular surface, and a tooth tip helical groove being machined on the helical annular surface;

[0005] The center head includes a support sleeve with a special thread machined on its outer side. The support sleeve is connected to one side of the casing chamber via the special thread. The inner hole of the support sleeve is slidably connected to the through pipe. The support sleeve has a stepped hole and a stepped shaft on its outer side. An inner rubber sleeve is installed in the stepped hole and is vulcanized and fixed together with the stepped hole. The inner hole of the inner rubber sleeve is corrugated. The center head has an inner stop outside the stepped hole. Packing is installed between the inner stop and the inner rubber sleeve. An outer rubber sleeve is installed outside the stepped shaft and is vulcanized and fixed together with the stepped shaft. The outer circle of the outer rubber sleeve is corrugated. The center head has an outer stop outside the stepped shaft. Packing is installed between the outer stop and the outer rubber sleeve.

[0006] The inner rubber sleeve has a hollow structure, and the inner cavity of the inner rubber sleeve is filled with perlite. The inner rubber sleeve has a water inlet hole B, the stepped hole has a water inlet hole C, and the center head has a water channel. The water channel is connected to the outdoor end face of the center head, and the water inlet hole B, the water inlet hole C and the water channel are interconnected.

[0007] The outer rubber sleeve has a hollow structure, and the inner cavity of the outer rubber sleeve is filled with perlite. The outer rubber sleeve has a water inlet hole A, and the stepped shaft has a water inlet hole D. The water inlet hole A, the water inlet hole D and the water channel are interconnected.

[0008] The beneficial effects of this utility model are as follows: the sleeve and the center head are connected by a special thread. The center head is made of PVC material and will not rust. The special thread has a spiral groove at the bottom of the tooth and a spiral surface at the top of the tooth. When the PVC material center head is connected to the steel sleeve, the special thread can deform to adapt to the thread size of the sleeve and prevent loosening. The center head and the sleeve, as well as the center head and the through pipe, are sealed with packing, which improves the waterproof performance. By setting a water inlet channel and filling the inner and outer rubber sleeves with perlite, when the groundwater level rises, the perlite expands and pushes the packing to be more compact, further improving the waterproof effect. Attached Figure Description

[0009] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Appendix Figure 2 This is a schematic diagram of the structure of this utility model after being connected to the sleeve thread;

[0011] Appendix Figure 3 It is attached Figure 2 Enlarged view of point A;

[0012] Appendix Figure 4 This is a schematic diagram of the structure of the central head of this utility model.

[0013] In the diagram, 1-triangular thread tooth, 2-helical groove at the tooth bottom, 3-helical surface at the tooth top, 4-helical groove at the tooth top, 5-sleeve, 6-center head, 7-through pipe, 8-outer rubber sleeve, 9-packing packing, 10-perlite, 11-inlet hole A, 12-inlet hole B, 13-water inlet groove, 14-inner stop, 15-outer stop, 16-stepped hole, 17-stepped shaft, 18-support sleeve, 19-inner rubber sleeve, 20-inlet hole C, 21-inlet hole D. Detailed Implementation

[0014] like Figures 1-4 As shown, a special threaded sleeve for preventing loosening includes a sleeve 5, a center head 6 installed in the inner hole of the sleeve 5, the sleeve 5 and the center head 6 are threadedly connected, the center head 6 is made of PVC material, the thread of the center head 6 is a special thread, the special thread of the center head 6 includes triangular thread teeth 1, a tooth root helical groove 2 is machined on the tooth root of the two triangular thread teeth 1, the tooth tip of the triangular thread teeth 1 is machined into a tooth tip helical surface 3, and a tooth tip helical groove 4 is machined on the helical annular surface 3.

[0015] The center head 6 includes a support sleeve 18, the outer side of which is machined with the aforementioned special thread. The support sleeve 18 is connected to the inner side of the sleeve 5 via the special thread. The inner hole of the support sleeve 18 is slidably connected to the through pipe 7. The support sleeve 18 has a stepped hole 16 and a stepped shaft 17 on the outer side. An inner rubber sleeve 19 is provided in the stepped hole 16. The inner rubber sleeve 19 is vulcanized and fixed together with the stepped hole 16. The inner hole of the inner rubber sleeve 19 is corrugated. The center head 6 has an inner stop 14 outside the stepped hole 16. Packing filler 9 is provided between the inner stop 14 and the inner rubber sleeve 19. An outer rubber sleeve 8 is provided outside the stepped shaft 17. The outer rubber sleeve 8 is vulcanized and fixed together with the stepped shaft 17. The outer circle of the outer rubber sleeve 8 is corrugated. The center head 6 has an outer stop 15 outside the stepped shaft 17. Packing filler 9 is provided between the outer stop 15 and the outer rubber sleeve 8.

[0016] The inner rubber sleeve 19 has a hollow structure, and the inner cavity of the inner rubber sleeve 19 is filled with perlite 10. The inner rubber sleeve 19 has a water inlet hole B12, the stepped hole 16 has a water inlet hole C20, the center head 6 has a water channel 13, the water channel 13 is connected to the outdoor end face of the center head 6, and the water inlet hole B12, the water inlet hole C20 and the water channel 13 are interconnected.

[0017] The outer rubber sleeve 8 has a hollow structure, and the inner cavity of the outer rubber sleeve 8 is filled with perlite 10. The outer rubber sleeve 8 has a water inlet hole A11, and the stepped shaft 17 has a water inlet hole D21. The water inlet hole A11, the water inlet hole D21 and the water channel 13 are interconnected.

[0018] The sleeve 5 and the center head 6 are connected by a special thread. The center head 6 is made of PVC material and will not rust. The special thread has a spiral groove 2 at the bottom of the tooth, a spiral surface 3 at the top of the tooth, and a spiral groove 4 at the top of the tooth. When the PVC material center head 6 is connected to the steel sleeve 5, the special thread can deform to adapt to the thread size of the sleeve 5 and prevent loosening. The center head 6 and the sleeve 5, as well as the center head 6 and the through pipe 7 are sealed with packing 9, which improves the waterproof performance. By setting a water inlet trough 13, perlite 10 is filled in the inner rubber sleeve 19 and the outer rubber sleeve 8. When the groundwater level rises, the perlite 10 expands and pushes the packing 9 to be more compact, further improving the waterproof effect.

Claims

1. A special threaded sleeve with anti-loosening properties, comprising a sleeve (5), characterized in that: The inner hole of the sleeve (5) is fitted with a center head (6), and the sleeve (5) is threadedly connected to the center head (6). The center head (6) is made of PVC material. The thread of the center head (6) is a special thread. The special thread of the center head (6) includes a triangular thread tooth (1). The tooth root of the triangular thread tooth (1) is machined with a tooth root helical groove (2). The tooth tip of the triangular thread tooth (1) is machined into a tooth tip helical surface (3). A tooth tip helical groove (4) is machined on the tooth tip helical surface (3). The center head (6) includes a support sleeve (18), the outer side of which is machined with the special thread. The support sleeve (18) is connected to the inner side of the sleeve (5) through the special thread. The inner hole of the support sleeve (18) is slidably connected to the through pipe (7). The support sleeve (18) has a stepped hole (16) and a stepped shaft (17) on the outer side. An inner rubber sleeve (19) is provided in the stepped hole (16). The inner rubber sleeve (19) is vulcanized and fixed together with the stepped hole (16). The inner hole of the inner rubber sleeve (19) is... It is corrugated and has an inner stop (14) on the outside of the stepped hole (16) at the center head (6). Packing (9) is provided between the inner stop (14) and the inner rubber sleeve (19). An outer rubber sleeve (8) is provided outside the stepped shaft (17). The outer rubber sleeve (8) is vulcanized and fixed together with the stepped shaft (17). The outer circle of the outer rubber sleeve (8) is corrugated and has an outer stop (15) on the outside of the stepped shaft (17) at the center head (6). Packing (9) is provided between the outer stop (15) and the outer rubber sleeve (8).

2. The special anti-loosening sleeve thread according to claim 1, characterized in that: The inner rubber sleeve (19) has a hollow structure. The inner cavity of the inner rubber sleeve (19) is filled with perlite (10). The inner rubber sleeve (19) has a water inlet hole B (12). The stepped hole (16) has a water inlet hole C (20). The center head (6) has a water channel (13). The water channel (13) is connected to the outdoor end face of the center head (6). The water inlet hole B (12), the water inlet hole C (20) and the water channel (13) are interconnected. The outer rubber sleeve (8) has a hollow structure. The inner cavity of the outer rubber sleeve (8) is filled with perlite (10). The outer rubber sleeve (8) has a water inlet hole A (11). The stepped shaft (17) has a water inlet hole D (21). The water inlet hole A (11), the water inlet hole D (21) and the water channel (13) are interconnected.

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