Heat preservation type heating and ventilation pipe for heating and ventilation engineering

Abstract

The utility model discloses a heat preservation type heating and ventilation pipe for heating and ventilation engineering, and relates to a heating and ventilation pipe, the heat preservation type heating and ventilation pipe comprises a first pipe body and a second pipe body, the first pipe body abuts against the second pipe body, the first pipe body and the second pipe body are respectively and fixedly provided with a fixing piece and a positioning frame, one side of the fixing piece is provided with a positioning column, and the other side of the fixing piece is provided with a positioning groove. A sliding piece is arranged in the positioning frame in a sliding manner; the permanent magnet is placed in the placing groove, the iron block can be attracted to move upwards, meanwhile, the sliding piece drives the clamping rod to compress the spring to move upwards along with the clamping rod, then the opposite ends of the first pipe body and the second pipe body abut against each other, the positioning column is inserted into the positioning groove, and finally the permanent magnet is taken out of the placing groove. At the moment, the spring pushes away the sliding piece due to the elasticity of the spring and enables the clamping rod to be inserted into the limiting groove, the first pipe body and the second pipe body can be conveniently installed, the connecting structure of the heating and ventilation pipe is arranged in a hidden mode, the influence of external factors on the heating and ventilation pipe can be avoided, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC pipes, in particular to a heat-insulating HVAC pipe for HVAC engineering. Background Art

[0002] The application range of HVAC pipes is very wide, such as purification system return air ducts, central air-conditioning ventilation ducts, industrial supply and exhaust ventilation ducts, environmental protection system suction and exhaust ducts, mining gas extraction pipes, mining rubberized cloth air ducts, etc. The advantages of the pipes are good sealing, uniform strength and rigidity. In order to facilitate the disassembly and assembly of two adjacent pipes, detachable HVAC pipes have appeared.

[0003] For example, an existing Chinese patent (publication number: CN219796465U) discloses an insulated HVAC pipe for HVAC engineering. A worker places the second installation ring on the right side of the first installation ring, so that the outer wall of the annular sealing plate is movably connected with the inner cavity of the first installation ring. By rotating the screw, the outer wall of the screw is threadedly connected with the inner cavity of the first and second fixing blocks. By rotating the nut, the inner cavity of the nut is threadedly connected with the outer wall of the screw. Under the action of the nut, the first installation ring and the second installation ring are tightly fitted.

[0004] However, the above-designed insulated HVAC pipe for HVAC engineering still has some disadvantages in actual use: although the insulated HVAC pipe for HVAC engineering can be disassembled and assembled, it is completed by bolts in actual use. The bolts are prone to rust in the outside world for a long time. The rusted bolts not only reduce their own rigidity, but also make them difficult to disassemble.

[0005] Therefore, we have designed a thermal insulation HVAC pipe for HVAC engineering to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a heat-insulating HVAC pipe for HVAC engineering. By placing a permanent magnet in a placement groove, an iron block can be attracted and moved upward, and at the same time, a slide drives a clamping rod compression spring to move upward, and then the opposite ends of a first tube body and a second tube body are respectively abutted against each other and a positioning column is inserted into the positioning groove. Finally, the permanent magnet is taken out of the placement groove. At this time, the spring will push the slide away due to its own elastic force and insert the clamping rod into the limit groove, so that the first tube body and the second tube body can be easily installed. The HVAC pipe has a hidden connection structure, which can not only avoid the influence of external factors on it, but also facilitate disassembly and assembly, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the utility model provides an insulated HVAC pipe for HVAC engineering, including a first tube body and a second tube body, the first tube body and the second tube body are abutted against each other, and a fixing part and a positioning frame are fixedly provided on the first tube body and the second tube body respectively, a positioning column is installed on one side of the fixing part, a sliding part is slidably provided in the positioning frame, a clamping rod is provided at the bottom of the sliding part, the clamping rod is connected to the positioning column, a spring is provided at the top of the sliding part, the other end of the spring is provided in the positioning frame, and an iron block is provided on the top of the sliding part.

[0008] Furthermore, the number of the fixing members and the positioning frames are both two, and the two fixing members and the positioning frames are symmetrically installed on the first tube body and the second tube body respectively. The setting of the two fixing members and the positioning frames can position the two ends of the first tube body and the second tube body, which can further improve the stability of the connection between the first tube body and the second tube body.

[0009] Furthermore, a cavity is provided inside the positioning frame, the slide is slidably connected in the cavity, and two ends of the spring are fixedly connected to the top of the slide and the top wall of the cavity respectively.

[0010] Furthermore, a positioning groove is provided on one side of the positioning frame, a limiting groove is provided on the top of the positioning column, the side of the positioning column away from the fixing member is slidably inserted into the positioning groove, and the end of the clamping rod away from the sliding member slides through the positioning frame and is inserted into the limiting groove.

[0011] Furthermore, two guide rods are symmetrically inserted in the slide, and both ends of the guide rods are fixedly installed in the cavity. By providing the guide rods, the slide can be guided when it slides, thereby avoiding the problem of the slide being offset when it slides.

[0012] Furthermore, a placement slot is provided on the top of the positioning frame, and the placement slot is located directly above the iron block and is used to place a permanent magnet to attract the iron block. By setting the placement slot, the position closest to the iron block can be quickly found, thereby facilitating the attraction of the iron block.

[0013] Furthermore, a sealing ring is provided on one side of the first tube body, and the other side of the sealing ring is against the second tube body. The sealing ring is made of fluororubber. By providing the sealing ring, the sealing between the first tube body and the second tube body can be ensured. By setting the sealing ring to be fluororubber, since fluororubber has good high temperature resistance, the sealing ring can be used normally in a high temperature environment.

[0014] Compared with the prior art, the beneficial effect of the utility model is as follows: by placing a permanent magnet on the top of the positioning frame, the iron block can be attracted and moved upward, and at the same time, the slide drives the card rod compression spring to move upward, and then the opposite ends of the first tube body and the second tube body are respectively abutted against each other and the positioning column is inserted into the positioning groove, and finally the permanent magnet is taken out from the placement groove. At this time, the spring will push the slide away due to its own elastic force and insert the card rod into the limit groove, so that the first tube body and the second tube body can be easily installed. The HVAC pipe hides the connection structure, which can not only avoid the influence of external factors on it, but also facilitate disassembly and assembly.

[0015] Compared with the prior art, the beneficial effects of the utility model are: by setting a sealing ring, the sealing between the first tube body and the second tube body can be ensured, and by setting the sealing ring to fluororubber, since fluororubber has good high temperature resistance, the sealing ring can be used normally in a high temperature environment.

[0016] Compared with the prior art, the beneficial effects of the utility model are: by setting a guide rod, the slider can be guided when sliding, avoiding the problem of the slider being offset when sliding; by setting a placement groove, the position closest to the iron block can be quickly found, thereby facilitating the attraction of the iron block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the side exterior of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the front exterior of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the interior of the positioning frame of the utility model in a half-section view.

[0020] In the figure: 1. first tube body; 2. second tube body; 3. fixing member; 4. positioning frame; 5. positioning column; 6. sliding member; 7. clamping rod; 8. spring; 9. iron block; 10. cavity; 11. positioning groove; 12. limiting groove; 13. guide rod; 14. placement groove; 15. sealing ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3The utility model provides a technical solution: comprising a first tube body 1 and a second tube body 2, the first tube body 1 and the second tube body 2 are abutted against each other, a fixing member 3 and a positioning frame 4 are fixedly arranged on the first tube body 1 and the second tube body 2, a positioning column 5 is installed on one side of the fixing member 3, a slide 6 is slidably arranged in the positioning frame 4, a clamping rod 7 is arranged at the bottom of the slide 6, the clamping rod 7 is connected to the positioning column 5, a spring 8 is arranged at the top of the slide 6, the other end of the spring 8 is arranged in the positioning frame 4, and an iron block 9 is arranged at the top of the slide 6;

[0023] A cavity 10 is defined inside the positioning frame 4, the slide 6 is slidably connected in the cavity 10, the two ends of the spring 8 are fixedly connected to the top of the slide 6 and the top wall of the cavity 10 respectively, a positioning groove 11 is defined on one side of the positioning frame 4, a limiting groove 12 is defined on the top of the positioning column 5, the side of the positioning column 5 away from the fixing member 3 is slidably inserted into the positioning groove 11, and the end of the clamping rod 7 away from the slide 6 slides through the positioning frame 4 and is inserted into the limiting groove 12.

[0024] During the specific implementation, the permanent magnet is first placed on the top of the positioning frame 4 so that the permanent magnet attracts the iron block 9 and moves upward. During this process, the slide 6 will drive the clamping rod 7 to compress the spring 8 and move upward, and then the opposite ends of the first tube body 1 and the second tube body 2 are respectively abutted against each other. During this process, the positioning column 5 will be inserted into the positioning groove 11, and finally the permanent magnet is taken out from the placement groove 14. At this time, the spring 8 will push the slide 6 away due to its own elastic force until the clamping rod 7 is inserted into the limit groove 12, so that the first tube body 1 and the second tube body 2 can be easily installed. The HVAC pipe hides the connection structure, which can not only avoid the influence of external factors on it, but also facilitate disassembly and assembly. When the first tube body 1 and the second tube body 2 need to be disassembled, it can be operated according to the above principle.

[0025] See also Figure 1-3 As shown, two guide rods 13 are symmetrically inserted in the slide 6, and both ends of the guide rods 13 are fixedly installed in the cavity 10. By providing the guide rods 13, the slide 6 can be guided when sliding, avoiding the problem of the slide 6 being offset when sliding.

[0026] See also Figure 1-3 The number of the fixing members 3 and the positioning frames 4 are both two, and the two fixing members 3 and the positioning frames 4 are symmetrically mounted on the first tube body 1 and the second tube body 2. The arrangement of the two fixing members 3 and the positioning frames 4 can position the two ends of the first tube body 1 and the second tube body 2, and can further improve the stability of the connection between the first tube body 1 and the second tube body 2.

[0027] See also Figure 1-3 A placement slot 14 is provided on the top of the positioning frame 4, and the placement slot 14 is located directly above the iron block 9, and is used to place a permanent magnet to attract the iron block 9. By providing the placement slot 14, the position closest to the iron block 9 can be quickly found, thereby facilitating the attraction of the iron block 9.

[0028] See also Figure 1-3 A sealing ring 15 is provided on one side of the first tube body 1, and the other side of the sealing ring 15 abuts against the second tube body 2. The sealing ring 15 is made of fluororubber. By providing the sealing ring 15, the sealing performance between the first tube body 1 and the second tube body 2 can be ensured. By providing the sealing ring 15 with fluororubber, since fluororubber has good high temperature resistance, the sealing ring 15 can be used normally in a high temperature environment.

[0029] Working principle: When in use, first place the permanent magnet in the placement groove 14, so that the permanent magnet attracts the iron block 9 and moves upward. In this process, the slide 6 will drive the clamping rod 7 to compress the spring 8 and move upward along the direction set by the guide rod 13, and then the opposite ends of the first tube body 1 and the second tube body 2 are respectively abutted. In this process, the positioning column 5 will be inserted into the positioning groove 11, and finally the permanent magnet is taken out from the placement groove 14. At this time, the spring 8 will push the slide 6 away due to its own elastic force until the clamping rod 7 is inserted into the limit groove 12, so that the first tube body 1 and the second tube body 2 can be easily installed. The HVAC pipe hides the connecting structure, which can not only avoid the influence of external factors on it, but also facilitate disassembly and assembly. When the first tube body 1 and the second tube body 2 need to be disassembled, it can be operated according to the above principle. By setting the sealing ring 15, the sealing between the first tube body 1 and the second tube body 2 can be guaranteed. By setting the sealing ring 15 to fluororubber, since fluororubber has good high temperature resistance, the sealing ring 15 can be used normally in a high temperature environment.

Claims

1. A heat-insulating HVAC pipe for HVAC engineering, comprising a first pipe body (1) and a second pipe body (2), wherein the first pipe body (1) and the second pipe body (2) are abutted against each other, and a fixing member (3) and a positioning frame (4) are respectively fixedly arranged on the first pipe body (1) and the second pipe body (2), characterized in that: A positioning column (5) is installed on one side of the fixing member (3); a sliding member (6) is slidably arranged in the positioning frame (4); a clamping rod (7) is arranged at the bottom of the sliding member (6); the clamping rod (7) is connected to the positioning column (5); a spring (8) is arranged at the top of the sliding member (6); the other end of the spring (8) is arranged in the positioning frame (4); and an iron block (9) is arranged at the top of the sliding member (6).

2. The heat-insulating HVAC pipe for HVAC engineering according to claim 1, characterized in that: The number of the fixing members (3) and the positioning frames (4) is two each, and the two fixing members (3) and the positioning frames (4) are symmetrically mounted on the first tube body (1) and the second tube body (2), respectively.

3. The heat-insulating HVAC pipe for HVAC engineering according to claim 1, characterized in that: A cavity (10) is provided inside the positioning frame (4), the sliding member (6) is slidably connected in the cavity (10), and the two ends of the spring (8) are respectively fixedly connected to the top of the sliding member (6) and the top wall of the cavity (10).

4. The heat-insulating HVAC pipe for HVAC engineering according to claim 1, characterized in that: A positioning groove (11) is provided on one side of the positioning frame (4), and a limiting groove (12) is provided on the top of the positioning column (5). The side of the positioning column (5) away from the fixing member (3) is slidably inserted into the positioning groove (11), and the end of the clamping rod (7) away from the sliding member (6) slides through the positioning frame (4) and is inserted into the limiting groove (12).

5. The heat-insulating HVAC pipe for HVAC engineering according to claim 3, characterized in that: Two guide rods (13) are symmetrically inserted into the sliding member (6), and both ends of the guide rods (13) are fixedly installed in the cavity (10).

6. The heat-insulating HVAC pipe for HVAC engineering according to claim 1, characterized in that: A placement groove (14) is provided on the top of the positioning frame (4). The placement groove (14) is located directly above the iron block (9) and is used for placing a permanent magnet to attract the iron block (9).

7. The heat-insulating HVAC pipe for HVAC engineering according to claim 1, characterized in that: A sealing ring (15) is provided on one side of the first tube body (1), and the other side of the sealing ring (15) abuts against the second tube body (2), and the sealing ring (15) is made of fluororubber.

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