Plug-in type thermal insulation sleeve

Abstract

The utility model relates to the technical field of heat preservation sleeves, in particular to a plug-in type heat preservation sleeve which comprises end heads installed at the two ends of the heat preservation sleeve, an annular groove is formed in each end head, the two sides of the interior of each annular groove are connected with a clamping hoop and a hoop in a sliding mode respectively, and threaded holes extending into the annular grooves are symmetrically formed in the two sides of each end head. A threaded rod with the bottom connected with the clamp and the hoop through a shaft sleeve is connected into the threaded hole in a threaded mode, a clamping assembly providing connection stability is arranged at the joint of the clamp and the hoop, and a guide assembly is arranged in the heat preservation sleeve. The screw rod is screwed to rotate downwards in the threaded hole, the shaft sleeve drives the hoop and the hoop to move relatively and abut against each other, and the diameter of the circular ring formed by abutting the hoop and the hoop is slightly smaller than that of the rubber sealing ring on the inner side of the end portion, so that the rubber sealing ring is extruded to deform, and the connector is completely sealed. Therefore, heat loss caused by gaps at the joints is avoided.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation sleeve technology, and in particular to a plug-in thermal insulation sleeve. Background Technology

[0002] During operation, a car's engine, exhaust system, and other components generate a lot of heat. If this heat is not effectively managed, it will not only affect the car's power performance and fuel economy, but the heat it emits may also negatively impact the comfort of the car's interior and pose certain safety hazards.

[0003] Currently, most traditional automotive insulation sleeves adopt an integral structure. During installation, the entire sleeve needs to be fitted onto the corresponding pipe or component, and then installed using complex fixing methods, such as using a large amount of tape and clamps. This installation method is not only time-consuming and labor-intensive, but it is also prone to damaging the sleeve during installation, affecting its insulation effect. Furthermore, in some narrow pipe locations, there is not enough space to wrap the insulation sleeve with tape or use external clamps for fixation. After long-term exposure to vibration, the insulation sleeve may loosen or shift, thus affecting its insulation performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a plug-in insulation sleeve, which solves the technical problems of existing technologies requiring a large amount of tape and clamps to fix the insulation sleeve after it is installed on the corresponding pipe, which is cumbersome and makes it impossible to effectively fix it in some narrow spaces. The invention achieves the goal of ensuring the stability of the insulation sleeve installation by incorporating a plug-in fixing mechanism on the insulation sleeve.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a plug-in type thermal insulation sleeve, including end heads installed at both ends of the thermal insulation sleeve, an annular groove is opened inside the end head, and a clamp and a retainer are slidably connected on both sides of the annular groove, and threaded holes extending into the annular groove are symmetrically opened on both sides of the end head, and a screw is threadedly connected to the bottom of the threaded hole and connected to the clamp and the retainer respectively through a bushing, and a snap-fit ​​component is provided at the connection of the clamp and the retainer to provide connection stability, and a guide component is provided inside the thermal insulation sleeve to prevent automotive pipe parts from scratching the inner wall of the thermal insulation sleeve.

[0006] A further improvement is that the insulation sleeve consists of a silicone rubber layer, a polyurethane insulation layer, and a heat-resistant polyethylene layer from the inside out, and the inner side of the end head is a rubber sealing ring.

[0007] A further improvement is that both the clamp and the gripper are semi-circular structures, which are spliced ​​together to form a ring structure, and the inner diameter of the ring structure is slightly smaller than the diameter of the rubber sealing ring on the inner side of the end head.

[0008] A further improvement is that the polyurethane insulation layer has a stepped hole structure with a small inner diameter and a large outer diameter, and a helical spring is installed inside the heat-resistant polyethylene layer.

[0009] A further improvement is that the snap-fit ​​assembly includes a plug-in block installed on the end face of the clamp, a tension spring is installed on the inner wall of the slide groove opened in the plug-in block, a snap-fit ​​block is installed on the outer end of the tension spring and slidably connected to the inner wall of the slide groove, and the outer side of the snap-fit ​​block has an arc surface structure. The clamp is provided with a plug-in groove adapted to the plug-in block, and a snap-fit ​​groove adapted to the snap-fit ​​block is provided in the plug-in groove.

[0010] A further improvement is that the guiding component includes a guide head installed inside the insulation sleeve, and one side of the guide head has an arc surface structure. The inner wall of the insulation sleeve is symmetrically provided with guide grooves on both sides, and one end of the guide groove extends through the inner wall of the insulation sleeve to the outside. Guide sliders installed on both sides of the guide head are slidably connected in the guide groove.

[0011] By employing the above technical solution, this utility model provides a plug-in insulation sleeve, which has at least the following beneficial effects:

[0012] 1. This utility model uses screwing to rotate the screw downwards in the threaded hole, and drives the clamp and the gripper to move relative to each other and abut against each other through the bushing. Since the diameter of the ring formed by the clamp and the gripper is slightly smaller than the diameter of the rubber sealing ring on the inner side of the end head, the rubber sealing ring is squeezed and deformed, and the interface is completely sealed, thereby avoiding gaps at the interface and heat loss.

[0013] 2. In this utility model, the plug-in block on the clamp is inserted into the plug-in groove. During this process, the arc surface of the plug-in block is squeezed and slides into the groove opened on the plug-in block, squeezing the tension spring. After the plug-in block is fully inserted into the plug-in groove, the tension spring returns to its original position and pushes the plug-in block into the plug-in groove, thereby completing the clamping and fixing of the clamp and the clamp, and preventing the two from being separated by vibration, which would cause gaps at the interface.

[0014] 3. This utility model uses the outer end of the automotive pipe to abut against the guide head. Since the outer side of the guide head has an arc surface structure, when the automotive pipe pushes the guide head and drives the guide slider to slide outward along the guide groove opened in the insulation sleeve, it can avoid scratching the inner wall of the insulation sleeve. The insertion of the automotive pipe is completed when the automotive pipe is fully inserted into the insulation sleeve and the guide head is pushed out of the insulation sleeve. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the internal structure of the end head of this utility model;

[0020] Figure 4 This is a cross-sectional view of the internal disassembled structure of the snap-fit ​​assembly of this utility model;

[0021] Figure 5 This is a cross-sectional view of the internal structure of the thermal insulation sleeve of this utility model;

[0022] Figure 6 This is a cross-sectional view of the internal structure of the guide component of this utility model.

[0023] In the diagram: 1. Insulation sleeve; 11. Silicone rubber layer; 12. Polyurethane insulation layer; 13. Heat-resistant polyethylene layer; 14. Helical spring;

[0024] 2. End head; 3. Annular groove; 4. Clamp; 5. Grip clamp; 6. Screw;

[0025] 7. Snap-fit ​​assembly; 71. Insertion block; 72. Tension spring; 73. Snap-fit ​​block; 74. Insertion slot; 75. Snap-fit ​​slot;

[0026] 8. Guide component; 81. Guide head; 82. Guide groove; 83. Guide slider. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Addressing the issues of cumbersome and ineffective securing methods in confined spaces after installing insulation sleeves on pipes using existing technologies, this embodiment provides a plug-in type insulation sleeve. Please refer to... Figures 1-6This embodiment provides a plug-in type insulation sleeve with a built-in plug-in fixing mechanism to ensure the stability of the insulation sleeve installation. The plug-in type insulation sleeve includes end heads 2 installed at both ends of the insulation sleeve 1. An annular groove 3 is formed inside the end head 2. Clamps 4 and clamps 5 are slidably connected to both sides of the annular groove 3. Threaded holes extending into the annular groove 3 are symmetrically formed on both sides of the end head 2. Screws 6 are threadedly connected to the threaded holes, with their bottoms connected to the clamps 4 and clamps 5 via bushings. A snap-fit ​​component 7 is provided at the connection point of the clamps 4 and clamps 5 to provide connection stability. A guide component 8 is provided inside the insulation sleeve 1 to prevent automotive fittings from scratching the inner wall of the insulation sleeve 1.

[0030] The insulation sleeve 1 consists of a silicone rubber layer 11, a polyurethane insulation layer 12, and a heat-resistant polyethylene layer 13 from the inside out, and a rubber sealing ring on the inner side of the end head 2.

[0031] Both clamp 4 and clamp 5 are semi-circular structures, which are spliced ​​together to form a ring structure. The inner diameter of the ring structure is slightly smaller than the diameter of the rubber sealing ring on the inner side of the end head 2. Insert one end of the insulation sleeve 1 from the outer end of the automotive fitting until the insulation sleeve 1 moves to the end of the automotive fitting. Then, turn the screw 6 to rotate downward in the threaded hole. This will drive the clamp 4 and clamp 5 to move relative to each other and abut against each other through the bushing. Since the diameter of the ring formed by the clamp 4 and clamp 5 is slightly smaller than the diameter of the rubber sealing ring on the inner side of the end head 2, the rubber sealing ring is squeezed and deformed, completely sealing the joint. This prevents gaps at the joint from causing heat loss.

[0032] To further improve the thermal insulation and heat resistance of the insulation sleeve 1, as well as its mechanical strength, the polyurethane insulation layer 12 in this device is uniformly perforated with a stepped hole structure where the inner diameter is small and the outer diameter is large. A helical spring 14 is installed inside the heat-resistant polyethylene layer 13. The stepped holes release the pressure fluctuations caused by the thermal expansion and contraction of the polyurethane insulation layer 12 due to the heat conducted by the vehicle pipe fittings, preventing the insulation sleeve 1 from cracking due to the thermal expansion of the polyurethane insulation layer 12. The helical spring 14 installed inside the heat-resistant polyethylene layer 13 absorbs axial loads, such as the tensile or compressive stress of the pipe caused by vehicle vibration, thereby reducing the deformation of the insulation sleeve 1 itself. The circumferential support of the helical spring 14 can resist external radial pressure and prevent the pipe from collapsing under pressure, thereby improving the overall mechanical strength of the insulation sleeve 1 and extending its service life.

[0033] Example 2

[0034] To prevent the screw 6 from being subjected to vibration and other factors that could cause the clamp 4 and the retaining clamp 5 to separate, resulting in gaps at the interface and heat loss, therefore, based on Example 1, as follows... Figures 1-6As shown, the device also includes a snap-fit ​​assembly 7, which includes a plug-in block 71 installed on the end face of the clamp 4. A tension spring 72 is installed on the inner wall of a groove opened in the plug-in block 71. A snap-fit ​​block 73 is slidably connected to the inner wall of the groove on the outer end of the tension spring 72. The outer surface of the snap-fit ​​block 73 is an arc-shaped structure. The clamp 5 has a plug-in groove 74 that matches the plug-in block 71. A snap-fit ​​groove 75 that matches the snap-fit ​​block 73 is opened in the plug-in groove 74. When the clamp 4 and the clamp 5 abut, the plug-in block 71 on the clamp 4... Insert the plug into the insertion slot 74. During this process, the arc surface of the snap-fit ​​block 73 is squeezed and slides into the groove opened on the plug-fit block 71, squeezing the tension spring 72. After the plug-fit block 71 is fully inserted into the insertion slot 74, the tension spring 72 returns to its original position and pushes the snap-fit ​​block 73 into the snap-fit ​​slot 75, thereby completing the snap-fit ​​fixing of the clamp 4 and the clamp 5, and preventing the two from separating and causing gaps at the interface.

[0035] Example 3

[0036] To prevent the pipe fitting end from scratching the inner wall of the insulation sleeve 1 during insertion, based on Embodiment 1, as follows: Figures 1-6 As shown, the device is also equipped with a guide assembly 8, which includes a guide head 81 installed inside the insulation sleeve 1. One side of the guide head 81 has an arc-shaped structure. Guide grooves 82 are symmetrically opened on both sides of the inner wall of the insulation sleeve 1, and one end of the guide groove 82 extends through the inner wall of the insulation sleeve 1 to the outside. Guide sliders 83 installed on both sides of the guide head 81 are slidably connected in the guide groove 82. When the outer end of the automotive pipe is inserted into the insulation sleeve 1, the outer end of the automotive pipe abuts against the guide head 81. Since the outer side of the guide head 81 has an arc-shaped structure, when the automotive pipe pushes the guide head 81 and drives the guide sliders 83 to slide outward along the guide grooves 82 opened inside the insulation sleeve 1, the inner wall of the insulation sleeve 1 can be avoided from being scratched. The insertion of the automotive pipe is completed when the automotive pipe is fully inserted into the insulation sleeve 1 and the guide head 81 is pushed out of the insulation sleeve 1.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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 splicing thermal sleeve comprising end portions (2) mounted at both ends of a thermal sleeve (1), characterized in that: The end head (2) is internally provided with an annular groove (3), the annular groove (3) is internally and symmetrically provided with a threaded hole extending into the annular groove (3), the threaded hole is internally and threadedly connected with a screw rod (6) having a bottom connected with the clamp hoop (4) and the clamp hoop (5) through a shaft sleeve, the clamp hoop (4) and the clamp hoop (5) are provided with a clamping assembly (7) for providing connection stability, and the heat preservation sleeve (1) is internally provided with a guide assembly (8) for avoiding scratching the inner wall of the heat preservation sleeve (1).

2. A plug-in thermal sleeve according to claim 1, characterized in that: The heat preservation sleeve (1) comprises a silicon rubber layer (11), a polyurethane heat preservation layer (12) and a heat-resistant polyethylene layer (13) from inside to outside, and the end head (2) is internally provided with a rubber sealing ring.

3. A plug-in thermal sleeve according to claim 2, characterized in that: The clamp hoop (4) and the clamp hoop (5) are both semicircular structures, and are spliced into an annular structure, and the inner diameter of the annular structure is slightly smaller than the diameter of the rubber sealing ring on the inner side of the end head (2).

4. A plug-in thermal sleeve according to claim 2, characterized in that: The polyurethane heat preservation layer (12) is internally and uniformly provided with a stepped hole structure with a smaller inner diameter and a larger outer diameter, and the heat-resistant polyethylene layer (13) is internally provided with a spiral spring (14).

5. A plug-in thermal sleeve according to claim 1, characterized in that: The clamping assembly (7) comprises a plug-in block (71) mounted on the end face of the clamp hoop (4), a stretch spring (72) mounted on the inner wall of a sliding groove formed in the plug-in block (71), a clamping block (73) slidably connected to the inner wall of the sliding groove and mounted on the outer end of the stretch spring (72), and an arc surface structure on the outer side of the clamping block (73), the clamp hoop (5) is provided with a plug-in groove (74) matched with the plug-in block (71), and the plug-in groove (74) is provided with a clamping groove (75) matched with the clamping block (73).

6. A plug-in thermal sleeve according to claim 1, characterized in that: The guide assembly (8) comprises a guide head (81) mounted in the heat preservation sleeve (1), and one side of the guide head (81) is an arc surface structure, the inner wall of the heat preservation sleeve (1) is symmetrically provided with a guide sliding groove (82) on both sides, and one end of the guide sliding groove (82) penetrates the inner wall of the heat preservation sleeve (1) and extends to the outside, and the guide sliding groove (82) is slidably connected with a guide sliding block (83) mounted on both sides of the guide head (81).

Images