A locking device with good sealing effect

Abstract

This utility model relates to the field of locking equipment technology and discloses a locking device with good sealing effect. The locking device includes a pipe, a sealing mechanism above the pipe, and a snap-fit ​​mechanism above the sealing mechanism. The sealing mechanism includes a cover plate, the side of which is hinged to the top of the pipe. A base chamber is fixedly connected to the bottom of the cover plate, and a rotating shaft is rotatably connected through the middle of the cover plate. The bottom of the rotating shaft is rotatably connected through the bottom of the base chamber. This locking device with good sealing effect effectively seals the gas inside the pipe to prevent leakage, which is beneficial for the normal and continuous use of the equipment, ensuring the accuracy of the pressure gauge readings, facilitating observation and data recording by operators, thereby improving equipment utilization efficiency and promoting the smooth and orderly operation of production and business activities.

Description

Technical Field

[0001] This utility model relates to the field of locking equipment technology, specifically a locking device with good sealing effect. Background Technology

[0002] Pressure gauges are instruments that use elastic elements as sensing elements to measure and indicate pressures higher than ambient pressure. They are extremely common, found in almost all industrial processes and scientific research fields. They are ubiquitous in areas such as heat pipe networks, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. Especially in industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used due to the high mechanical strength and ease of manufacture of their elastic sensing elements.

[0003] Pressure gauges are commonly used in sealed piping systems, but most commercially available gauges are simple in structure and have limited functionality. During the sealing process, gaps can easily appear due to loosening of the equipment, leading to gas leaks. This can cause errors in the pressure gauge readings, affecting the normal operation of the equipment and hindering the smooth and orderly operation of production and business activities. Summary of the Invention

[0004] The purpose of this invention is to provide a locking device with good sealing effect to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a locking device with good sealing effect, comprising a pipe, a sealing mechanism disposed above the pipe, and a snap-fit ​​mechanism disposed above the sealing mechanism, the sealing mechanism comprising:

[0006] A cover plate, the side of which is hinged to the top of the pipe, a bottom compartment is fixedly connected to the bottom of the cover plate, a rotating shaft is rotatably connected through the middle of the cover plate, and the bottom of the rotating shaft is rotatably connected through the bottom of the bottom compartment.

[0007] The valve has its bottom fixedly connected to the top of the rotating shaft, and a turntable is fixedly connected through the lower outer wall of the rotating shaft. The turntable is located inside the bottom compartment, and an arc-shaped sliding groove is provided above the turntable.

[0008] A sliding rod is slidably connected to the inner wall of an arc-shaped groove at its middle section. A U-shaped connecting block is fixedly connected to the upper and lower ends of the sliding rod. A pressure rod is fixedly connected to the side of the U-shaped connecting block. A slider is slidably connected to the middle section of the pressure rod. The side of the slider is fixedly connected to the inner wall of the bottom compartment. The side of the pressure rod is slidably connected to the side of the bottom compartment.

[0009] Preferably, the turntable has three arc-shaped grooves on its upper surface, which are evenly distributed around the center of the rotating shaft. These arc-shaped grooves limit the movement trajectory of the sliding rod.

[0010] Preferably, the inner wall of the arc-shaped groove is slidably connected with three sliding rods. Each sliding rod has a U-shaped connecting block fixedly connected to both ends. Each U-shaped connecting block has three pressure rods fixedly connected to its side, equidistantly distributed around the center of the turntable. These pressure rods effectively limit and fix the position of the cover plate.

[0011] Preferably, a snap-fit ​​mechanism is provided above the sealing mechanism. The snap-fit ​​mechanism includes a slot formed on the outer wall of the rotating shaft, and a fixing block is provided on the side of the slot. The bottom of the fixing block is fixedly connected to the top of the cover plate. By setting up the snap-fit ​​mechanism, the working state of the sealing mechanism is fixed and limited.

[0012] Preferably, inclined locking rods are slidably connected through both sides of the fixing block. A push plate is fixedly connected to one side of each inclined locking rod, and the other side of the inclined locking rod is latched to the inner wall of the slot. By setting the fixing block, the movement trajectory of the inclined locking rod is limited.

[0013] Preferably, a return spring is wound around the outer wall of the inclined snap-fit ​​rod. One end of the return spring is fixedly connected to the side of the fixing block, and the other end is fixedly connected to the side of the push plate. By setting the return spring, the movement trajectory of the inclined snap-fit ​​rod is reset.

[0014] Compared with the prior art, this utility model provides a locking device with good sealing effect, which has the following beneficial effects:

[0015] 1. This locking device with good sealing effect can seal the gas in the pipeline to prevent leakage by setting a sealing mechanism, which is conducive to the normal and continuous use of the equipment, thereby ensuring the accuracy of the data displayed by the pressure gauge, facilitating the operator to observe and record data, thereby improving the utilization efficiency of the equipment and promoting the smooth and orderly operation of production and business activities.

[0016] 2. This locking device with good sealing effect uses a snap-fit ​​mechanism to fix and limit the working state of the sealing mechanism, thereby improving the service life of the sealing mechanism, reducing the maintenance cost of the equipment, reducing the workload of maintenance personnel, and improving the working efficiency of the equipment. Attached Figure Description

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

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of the sealing mechanism of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of a portion of the sealing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the buckle mechanism of this utility model.

[0021] In the diagram: 1. Pipe; 2. Sealing mechanism; 3. Clamping mechanism; 21. Cover plate; 22. Bottom compartment; 23. Rotating shaft; 24. Valve; 25. Turntable; 26. Arc groove; 27. Slide rod; 28. U-shaped connecting block; 29. ​​Pressure rod; 210. Sliding block; 31. Slot; 32. Fixing block; 33. Angled clamping rod; 34. Push plate; 35. Return spring. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a locking device with good sealing effect, including a pipe 1, a sealing mechanism 2 is provided above the pipe 1, and a buckling mechanism 3 is provided above the sealing mechanism 2.

[0023] The sealing mechanism 2 mentioned above includes a cover plate 21, a bottom chamber 22, a rotating shaft 23, a valve 24, a turntable 25, an arc groove 26, a sliding rod 27, a U-shaped connecting block 28, a pressure rod 29, and a slider 210. The cover plate 21 is hinged to the top of the pipe 1 on its side. The bottom of the cover plate 21 is fixedly connected to the bottom chamber 22. The middle of the cover plate 21 is rotatably connected to the rotating shaft 23. The bottom of the rotating shaft 23 is rotatably connected to the bottom of the bottom chamber 22. The bottom of the valve 24 is fixedly connected to the top of the rotating shaft 23. The lower outer wall of the rotating shaft 23 is fixedly connected to the turntable 25. The turntable 25 is located inside the bottom chamber 22. An arc groove 26 is provided above the turntable 25. The middle of the slide rod 27 is slidably connected to the inner wall of the arc groove 26. The upper and lower ends of the slide rod 27 are fixedly connected to the U-shaped connecting block 28. The side of the U-shaped connecting block 28 is fixedly connected to the pressure rod 29. The middle of the pressure rod 29 is slidably connected to the slider 210. The side of the slider 210 is fixedly connected to the inner wall of the bottom chamber 22. The side of the pressure rod 29 is slidably connected to the side of the bottom chamber 22. Three arc-shaped grooves 26 are provided above the turntable 25, equidistantly distributed around the center of the rotating shaft 23. Three sliding rods 27 are slidably connected to the inner wall of each arc-shaped groove 26. U-shaped connecting blocks 28 are fixedly connected to both ends of each sliding rod 27. Three pressure rods 29 are fixedly connected to the sides of each U-shaped connecting block 28, equidistantly distributed around the center of the turntable 25. The base chamber 22 protects the turntable 25 and pressure rods 29. The arc-shaped grooves 26 limit the movement of the sliding rods 27. The cover plate 21 covers and seals the pipe 1. The sealing mechanism 2 seals the gas inside the pipe 1 to prevent leakage.

[0024] The aforementioned latching mechanism 3 includes a latching groove 31, a fixing block 32, an inclined latching rod 33, a push plate 34, and a return spring 35. The latching groove 31 is formed on the outer wall of the rotating shaft 23. The fixing block 32 is located on the side of the latching groove 31, and its bottom is fixedly connected to the top of the cover plate 21. The inclined latching rod 33 is slidably connected to both sides of the fixing block 32. The push plate 34 is fixedly connected to one side of the inclined latching rod 33, and the other side of the inclined latching rod 33 is latched to the inner wall of the latching groove 31. A return spring 35 is wound around the outer wall of the inclined latching rod 33. One end of the return spring 35 is fixedly connected to the side of the fixing block 32, and the other end is fixedly connected to the side of the push plate 34. The fixing block 32 limits the movement trajectory of the inclined latching rod 33. The return spring 35 resets the movement trajectory of the inclined latching rod 33. The buckle mechanism 3 serves to fix and limit the working state of the sealing mechanism 2.

[0025] Working principle: After the cover plate 21 is placed on top of the pipe 1 to seal the pipe 1, the valve 24 is turned to make the rotating shaft 23 drive the turntable 25 inside the bottom chamber 22 to rotate. As the circular arc groove 26 rotates around the rotating shaft 23, it squeezes and slides the sliding rod 27 inside the circular arc groove 26. This causes the U-shaped connecting block 28 to drive the pressure rod 29 to slide on the inner wall of the fixing block 32. As a result, the pressure rod 29 slides from the side groove of the bottom chamber 22 to squeeze and fix the inner wall of the pipe 1. This not only seals the pipe 1 but also strengthens its fixation, thereby improving the overall sealing performance of the equipment.

[0026] While the valve 24 drives the rotating shaft 23 to rotate, the slot 31 squeezes and slides against the inclined snap rod 33 on the side. Under the reset action of the return spring 35, the inclined snap rod 33 is always snapped into the slot 31, thus limiting and fixing the working state of the sealing mechanism 2 through the snap mechanism 3. This helps to improve the working performance of the sealing mechanism 2 and prevent gas leakage inside the pipeline 1 due to the failure of the sealing mechanism 2.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A locking device with good sealing effect, comprising a pipe (1), characterized in that: A sealing mechanism (2) is provided above the pipe (1), and a snap-fit ​​mechanism (3) is provided above the sealing mechanism (2). The sealing mechanism (2) includes: Cover plate (21), the side of the cover plate (21) is hinged to the top of the pipe (1), the bottom of the cover plate (21) is fixedly connected to the bottom chamber (22), the middle of the cover plate (21) is rotatably connected to the pivot (23), and the bottom of the pivot (23) is rotatably connected to the bottom of the bottom chamber (22). The bottom of the valve (24) is fixedly connected to the top of the rotating shaft (23), and a turntable (25) is fixedly connected through the lower outer wall of the rotating shaft (23). The turntable (25) is set inside the bottom compartment (22), and an arc groove (26) is opened above the turntable (25). A sliding rod (27) is slidably connected to the inner wall of an arc groove (26) at its middle part. A U-shaped connecting block (28) is fixedly connected to the upper and lower ends of the sliding rod (27). A pressure rod (29) is fixedly connected to the side of the U-shaped connecting block (28). A slider (210) is slidably connected to the middle part of the pressure rod (29). The side of the slider (210) is fixedly connected to the inner wall of the bottom compartment (22). The side of the pressure rod (29) is slidably connected to the side of the bottom compartment (22).

2. The locking device with good sealing effect according to claim 1, characterized in that: The turntable (25) has three arc-shaped grooves (26) on its upper surface. The arc-shaped grooves (26) are evenly distributed above the turntable (23) with the center of the rotating shaft (23) as the axis.

3. The locking device with good sealing effect according to claim 1, characterized in that: The inner wall of the arc groove (26) is slidably connected with a slide rod (27). There are three slide rods (27). Both ends of the slide rod (27) are fixedly connected with a U-shaped connecting block (28). The side of the U-shaped connecting block (28) is fixedly connected with a pressure rod (29). There are three pressure rods (29). The pressure rods (29) are evenly distributed on the outer side of the turntable (25) with the center as the axis.

4. The locking device with good sealing effect according to claim 1, characterized in that: A buckle mechanism (3) is provided above the sealing mechanism (2). The buckle mechanism (3) includes a slot (31). The slot (31) is opened on the outer wall of the rotating shaft (23). A fixing block (32) is provided on the side of the slot (31). The bottom of the fixing block (32) is fixedly connected to the top of the cover plate (21).

5. A locking device with good sealing effect according to claim 4, characterized in that: The fixed block (32) is slidably connected to both sides by a beveled latch rod (33). A push plate (34) is fixedly connected to one side of the beveled latch rod (33), and the other side of the beveled latch rod (33) is latched to the inner wall of the slot (31).

6. A locking device with good sealing effect according to claim 5, characterized in that: The outer wall of the inclined buckle rod (33) is provided with a reset spring (35), one end of the reset spring (35) is fixedly connected to the side of the fixing block (32), and the other end of the reset spring (35) is fixedly connected to the side of the push plate (34).

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