A special-shaped screw cap

Abstract

The utility model relates to a heating pipeline auxiliary device technical field especially a special-shaped plug screw, the special-shaped plug screw includes the plug cap, the plug cap bottom installs the rotation connection's plug screw rod, and the both sides of plug cap all install the middle link spare for locking plug screw rod, the utility model provides a special-shaped plug screw when the staff drives plug screw rod to complete the plugging of pipeline thread mouth, the staff uses screwdriver to drive the screw cap reverse again, until the screw rod slides off the threaded hole, take down screwdriver, at this time, the plug rod slides off the threaded hole under the action of spring, so when other people rotate the hexagonal prism, only drive the plug cap to rotate, the bottom installs the rotation connection's plug screw rod, not only makes plug screw rod have the theftproof effect, also effectively reduced the loss that the company caused because of user private release heating water.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary devices for heating pipes, and in particular to a special-shaped plug. Background Technology

[0002] Water loss in a heating system is a key indicator for assessing the system's technical level, equipment condition, and the competence of management personnel, and it directly impacts both social and economic benefits. Pipeline leaks are a significant cause of water loss in heating systems. Currently, the industry primarily identifies leak points by shutting off supply and return water valves by zone, building, and unit, using portable ultrasonic flow meters and infrared thermometers to detect the difference in supply and return water flow rates in the heating pipelines or the temperature of sewage in sewage wells.

[0003] However, in actual operation, some users privately release heating water for personal needs, which not only disrupts the hydraulic balance of the heating system and reduces heating efficiency, but also significantly increases the water consumption and operating costs of heating units, causing serious economic losses. The existing conventional plug structure is simple and lacks effective anti-theft and anti-dismantling design, which cannot prevent users from privately disassembling the plug to release water, making it difficult to curb such problems from the source.

[0004] Therefore, it is necessary to provide a new type of irregularly shaped plug to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a special-shaped plug.

[0006] The irregular-shaped plug provided by this utility model includes a plug cap, a plug rod rotatably connected to the bottom of the plug cap, and a central connecting component for locking the plug rod is installed on both sides of the plug cap;

[0007] The connecting component includes a nut, a screw is fixedly installed at the bottom of the nut, an insert rod with a diameter smaller than the screw is fixedly installed at the head of the screw, and a spring is sleeved on the screw.

[0008] Preferably, the plug has an annular cavity inside, and side grooves are provided on both sides of the plug, with a through hole communicating with the annular cavity on each side groove.

[0009] Preferably, an annular disc is fixedly installed on the head of the plug rod, and the annular disc is installed in the annular cavity of the plug cap and rotatably connected to the plug cap. Threaded holes are provided on both sides of the annular disc.

[0010] Preferably, a rotating ring is fixedly installed at one end of the spring, and the rotating ring is rotatably connected to the inner wall of the nut; an abutting ring is fixedly installed at the other end of the spring, and the abutting ring is fixedly connected to the inner wall of the side groove.

[0011] Preferably, the screw is inserted into the through hole and is coaxially arranged with the through hole.

[0012] Preferably, the nut has a cross groove.

[0013] Preferably, a hexagonal prism is fixedly welded to the upper surface of the cap.

[0014] Compared with related technologies, the irregular-shaped plug provided by this utility model has the following beneficial effects:

[0015] After the worker uses the plug rod to seal the threaded opening on the pipe, the worker uses a screwdriver to reverse the nut until the screw rod slides out of the threaded hole. Then the screwdriver is removed, and the insertion rod slides out of the threaded hole under the action of the spring. Therefore, when others rotate the hexagonal prism, only the plug nut will rotate. The plug rod with a rotating connection at the bottom not only makes the plug rod anti-theft, but also effectively reduces the losses caused to the company by users privately releasing heating water. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the irregular-shaped plug provided by this utility model;

[0017] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the structure.

[0018] Figure 3 for Figure 2 A cross-sectional view of the connection between the plug cap and the threaded plug rod;

[0019] Figure 4 for Figure 2 The diagram shows a cross-sectional view of the connecting component.

[0020] The following are the labels in the diagram: 1. Plug cap; 1a. Annular cavity; 1b. Side groove; 1c. Through hole; 11. Hexagonal prism; 2. Plug rod; 21. Annular disc; 21a. Threaded hole; 3. Connecting component; 31. Nut; 31a. Cross groove; 32. Screw; 321. Insertion rod; 33. Spring; 331. Rotating ring; 332. Abutment ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] Please see Figures 1 to 4 This utility model provides a non-standard plug, which includes a plug cap 1, a plug rod 2, and a connecting component 3.

[0024] In the embodiments of this utility model, please refer to Figures 1 to 4 The bottom of the plug cap 1 is equipped with a rotatably connected threaded plug rod 2. Specifically, the plug cap 1 has an annular cavity 1a and side grooves 1b on both sides. Each side groove 1b has a through hole 1c that communicates with the annular cavity 1a. The threaded plug rod 2 has an annular disk 21 fixedly installed on its head. The annular disk 21 is installed in the annular cavity 1a of the plug cap 1 and is rotatably connected to the plug cap 1. Threaded holes 21a are opened on both sides of the annular disk 21. A hexagonal prism 11 is fixedly welded to the upper surface of the plug cap 1.

[0025] Both sides of the plug cap 1 are equipped with a central connecting component 3 for locking the plug rod 2. The central connecting component 3 includes a nut 31, a screw rod 32 is fixedly installed at the bottom of the nut 31, and an insertion rod 321 with a diameter smaller than the screw rod 32 is fixedly installed at the head of the screw rod 32. A spring 33 is sleeved on the screw rod 32, and a rotating ring 331 is fixedly installed at one end of the spring 33. The rotating ring 331 is rotatably connected to the inner wall of the nut 31. An abutment ring 332 is fixedly installed at the other end of the spring 33. The abutment ring 332 is fixedly connected to the inner wall of the side groove 1b. The screw rod 32 is inserted into the through hole 1c and is coaxial with the through hole 1c. A cross groove 31a is opened on the nut 31.

[0026] It should be noted that when using the plug rod 2 to seal the pipe, a screwdriver is used to press against the nut 31 to drive the insertion rod 321 to press against the outer ring wall of the annular disc 21. Then, the plug rod 2 is rotated. When the threaded hole 21a on the annular disc 21 is rotated to be coaxial with the through hole 1c, the insertion rod 321 is inserted into the threaded hole 21a. At this time, the rotation of the plug rod 2 is stopped. Then, the screwdriver is used to drive the nut 31 to rotate, so that the screw rod 32 is screwed in along the threaded hole 21a. The spring 33 is compressed, and the locking between the annular disc 21 and the plug cap 1 is completed. Therefore, the plug rod 2 can be driven to seal the threaded opening on the pipe by rotating the hexagonal prism 11 on the plug cap 1 with a wrench.

[0027] After the worker drives the plug rod 2 to seal the threaded opening on the pipe, the worker uses a screwdriver to drive the nut 31 to reverse until the screw rod 32 slides away from the threaded hole 21a. Then the screwdriver is removed, and the insertion rod 321 slides away from the threaded hole 21a under the action of the spring 33.

[0028] Therefore, when others rotate the hexagonal prism 11, it will only drive the plug cap 1 to rotate. The bottom is equipped with a rotating threaded plug rod 2, which not only makes the threaded plug rod 2 have an anti-theft effect, but also effectively reduces the losses caused to the company by users privately releasing heating water.

[0029] In this embodiment, since the spring 33 is rotatably connected to the inner wall of the nut 31 through the rotating ring 331, the spring 33 will not be twisted when the nut 31 is rotated.

[0030] In addition, the spring 33 is made of high-strength and corrosion-resistant stainless steel, and anti-rust grease is applied to the surface of the spring 33 to extend its service life. Furthermore, a limit block for the stroke of the spring 33 can be set in the side groove 1b to prevent the spring 33 from being over-compressed and causing permanent deformation.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A special-shaped plug, characterized in that, Includes a plug cap (1), the bottom of which is fitted with a rotatably connected threaded plug rod (2), and both sides of the plug cap (1) are fitted with a central connecting component (3) for locking the threaded plug rod (2); The connecting component (3) includes a nut (31), a screw (32) is fixedly installed at the bottom of the nut (31), an insertion rod (321) with a diameter smaller than the screw (32) is fixedly installed at the head of the screw (32), and a spring (33) is sleeved on the screw (32).

2. The irregular-shaped plug according to claim 1, characterized in that, The plug cap (1) has an annular cavity (1a) inside, and side grooves (1b) are provided on both sides of the plug cap (1). Each side groove (1b) has a through hole (1c) communicating with the annular cavity (1a).

3. The irregular-shaped plug according to claim 2, characterized in that, The plug rod (2) has an annular disc (21) fixedly installed on its head. The annular disc (21) is installed in the annular cavity (1a) of the plug cap (1) and is rotatably connected to the plug cap (1). Threaded holes (21a) are provided on both sides of the annular disc (21).

4. The irregular-shaped plug according to claim 3, characterized in that, One end of the spring (33) is fixedly installed with a rotating ring (331), and the rotating ring (331) is rotatably connected to the inner wall of the nut (31). The other end of the spring (33) is fixedly installed with an abutting ring (332), and the abutting ring (332) is fixedly connected to the inner wall of the side groove (1b).

5. The irregularly shaped plug according to claim 4, characterized in that, The screw (32) is inserted into the through hole (1c) and is coaxial with the through hole (1c).

6. The irregularly shaped plug according to claim 1, characterized in that, The nut (31) has a cross groove (31a).

7. The irregularly shaped plug according to claim 1, characterized in that, The upper surface of the cap (1) is fixedly welded with a hexagonal prism (11).

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