Pressure gauge

Abstract

The utility model discloses a pressure gauge, which relates to the field of pressure gauges, and is characterized in that the pressure gauge comprises a gauge shell and a gauge cover, the peripheral wall of the gauge shell is welded with a first mounting ring, the peripheral wall of the gauge cover is welded with a second mounting ring which is arranged coaxially with the first mounting ring, and the first mounting ring and the second mounting ring have the same outer diameter and are attached to each other. A plurality of clamping plates used for clamping the first mounting ring and the second mounting ring are jointly arranged on the peripheral walls of the first mounting ring and the second mounting ring, clamping grooves are formed in the clamping plates, and the inner walls of the clamping grooves abut against the outer walls of the first mounting ring and the second mounting ring correspondingly. According to the utility model, the plurality of clamping plates are detached to be respectively separated from the mounting ring I and the mounting ring II, so that tools are not needed when the meter shell and the meter cover are detached, the dismounting operation of the meter shell and the meter cover is more convenient, the later maintenance and overhaul work efficiency of devices in the meter shell can be improved, and the sealing performance can be improved through the sealing ring; therefore, when the pressure gauge is installed on a pipeline and used for detecting the pressure value of fluid, the fluid is prevented from leaking between the first installation ring and the second installation ring.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauges, and more specifically, to pressure gauges. 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 widely used in fields such as heating networks, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. In particular, mechanical pressure gauges are increasingly widely used in industrial process control and technical measurement because the elastic sensing elements of mechanical pressure gauges have high mechanical strength and are easy to manufacture.

[0003] Pressure gauges typically consist of a cover, housing, dial plate, glass panel, pointer, and connectors. However, existing housings and covers are usually connected by multiple bolts or screws, making it inconvenient for maintenance personnel to quickly install and disassemble them. When the pointer or other parts inside the housing malfunction and require repair, maintenance personnel need to use tools to separate the housing and cover, which hinders the repair process and reduces work efficiency.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pressure gauge.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pressure gauge, including a gauge case and a gauge cover, wherein a mounting ring one is welded to the outer peripheral wall of the gauge case, and a mounting ring two is welded to the outer peripheral wall of the gauge cover and coaxially disposed with the mounting ring. The outer diameters of the mounting ring one and the mounting ring two are equal and they fit together. A plurality of clamping plates for clamping the two are provided on the outer peripheral walls of the mounting ring one and the mounting ring two. Clamping grooves are provided on the clamping plates, and the inner walls of the clamping grooves abut against the outer walls of the mounting ring one and the mounting ring two, respectively.

[0007] The present invention is further configured such that: both mounting ring one and mounting ring two are provided with a plurality of corresponding receiving grooves, and two tension springs are provided between the inner wall of the receiving groove of mounting ring one and the clamping plate.

[0008] The present invention is further configured such that: one end of the tension spring is fixedly connected to the inner wall of the clamping groove, and the other end of the tension spring is detachably connected to the inner wall of the receiving groove.

[0009] The present invention is further configured such that: a connecting plate is glued to the same end of both tension springs, the connecting plate is detachably connected to the inner wall of the receiving groove of the first mounting ring, the connecting plate is in contact with the inner wall of the receiving groove of the second mounting ring, a threaded rod is fixedly connected to the connecting plate, and a threaded hole for cooperating with the threaded rod is opened in the inner wall of the receiving groove of the first mounting ring.

[0010] The present invention is further configured such that: one side of the second mounting ring is provided with a groove, and a sealing ring is fixedly connected to the inner wall of the groove, and the sealing ring abuts against the first mounting ring.

[0011] The present invention is further configured such that: the number of clamping plates is five, and the five clamping plates are distributed in a circumferential array along the mounting ring one or mounting ring two.

[0012] The present invention is further configured such that the first mounting ring, the second mounting ring, and the clamping plate are all made of stainless steel.

[0013] In summary, this utility model has the following beneficial effects: When the watch case and watch cover are installed together, several clamping plates simultaneously clamp the first and second mounting rings, so that the inner walls of the clamping grooves in the clamping plates abut against the first and second mounting rings respectively, thereby completing the installation between the watch case and the watch cover. When the pointer or other parts located inside the watch case malfunction and need repair, the watch cover can be disassembled from the watch case by removing the clamping plates to separate them from the first and second mounting rings respectively. This allows for the maintenance and repair of the internal parts of the watch case, making the disassembly of the watch case and watch cover tool-free and more convenient, thus improving the efficiency of subsequent maintenance and repair of the internal components of the watch case. Attached Figure Description

[0014] Figure 1 This is a partial exploded view of the present invention;

[0015] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0016] Figure 3 This is a schematic diagram of the structure of the mounting ring 2 in this utility model.

[0017] In the diagram: 1. Watch case; 2. Watch cover; 3. Mounting ring one; 4. Mounting ring two; 5. Clamping plate; 6. Clamping groove; 7. Receiving groove; 8. Tension spring; 9. Connecting plate; 10. Threaded rod; 11. Threaded hole; 12. Embedded groove; 13. Sealing ring. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0019] Pressure gauge, such as Figures 1 to 3 As shown, the watch includes a case 1, a cover 2, a dial plate, a glass panel, hands, and connectors. The dial plate and hands are located inside the case 1. A mounting ring 3 is welded to the outer peripheral wall of the case 1, and a mounting ring 4 coaxially arranged with the mounting ring 3 is welded to the outer peripheral wall of the cover 2. The outer diameters of the mounting ring 3 and the mounting ring 4 are equal and they fit together. Several clamping plates 5 for holding the two are provided on the outer peripheral walls of the mounting ring 3 and the mounting ring 4. Clamping grooves 6 are provided on the clamping plates 5. The inner walls of the clamping grooves 6 abut against the outer walls of the mounting ring 3 and the mounting ring 4, respectively. Several corresponding receiving grooves 7 are provided on the mounting ring 3 and the mounting ring 4. Two tension springs 8 are provided between the inner wall of the receiving groove 7 of the mounting ring 3 and the clamping plate 5. There are five clamping plates 5, and the five clamping plates 5 are distributed in a circumferential array along the mounting ring 3 or the mounting ring 4. The mounting ring 3, the mounting ring 4, and the clamping plates 5 are all made of stainless steel.

[0020] When the watch case 1 and the watch cover 2 are installed together, mounting ring 1 3 and mounting ring 2 4 are fitted together. Five clamping plates 5 simultaneously clamp the outer walls of mounting ring 1 3 and mounting ring 2 4. At this time, the tension spring 8 is not stretched and is housed in the receiving groove 7 of mounting ring 1 3. Simultaneously, the inner walls of the clamping grooves 6 in the clamping plates 5 abut against mounting ring 1 3 and mounting ring 2 4, thus completing the installation between the watch case 1 and the watch cover 2. The number of clamping plates 5 is set to five, and their circular array distribution better clamps mounting ring 1 3 and mounting ring 2 4, preventing positional misalignment between the watch case 1 and the watch cover 2, thus providing a limiting effect. When the pointer or other parts inside the watch case 1 malfunction and require repair, the five clamping plates 5 are pulled by hand, causing them not to clamp mounting ring 1 3 and mounting ring 2 4. As the clamping plates 5 are pulled away from the watch case 1, pulling the clamping plates 5 drives the two pull plates... When the extension spring 8 undergoes tensile deformation, the clamping groove 6 in the clamping plate 5 disengages from the mounting ring 3 and the mounting ring 4 respectively. Then, one side of the clamping plate 5 can be pressed against the side of the mounting ring 3 away from the mounting ring 4. At this time, both extension springs 8 are in a bent deformation state. When one side of all five clamping plates 5 is pressed against the mounting ring 3, the watch cover 2 is pulled away from the watch case 1. During the pulling of the watch cover 2, the mounting ring 4 is moved, so that the mounting ring 4 is not in contact with the mounting ring 3. The watch cover 2 can be disassembled from the watch case 1, so that the internal parts of the watch case 1 can be maintained and repaired. The disassembly of the watch case 1 and the watch cover 2 can be carried out without the use of tools, making the disassembly operation of the watch case 1 and the watch cover 2 more convenient and improving the efficiency of the maintenance and repair of the internal components of the watch case 1. Stainless steel has the characteristics of high hardness, so the mounting ring 3, the mounting ring 4 and the five clamping plates 5 are not easily damaged by external impacts, thus improving their service life.

[0021] like Figures 1 to 3As shown, one end of the tension spring 8 is bonded to the inner wall of the clamping groove 6, and the other end of the tension spring 8 is detachably connected to the inner wall of the receiving groove 7. A connecting plate 9 is bonded to the same end of both tension springs 8. The connecting plate 9 is detachably connected to the inner wall of the receiving groove 7 of the mounting ring 1 3. The connecting plate 9 fits against the inner wall of the receiving groove 7 of the mounting ring 2 4. A threaded rod 10 is welded on the connecting plate 9. A threaded hole 11 for cooperating with the threaded rod 10 is opened on the inner wall of the receiving groove 7 of the mounting ring 1 3. When both tension springs 8 experience elastic fatigue and the clamping plate 5 is damaged and needs to be replaced, the threaded rod 10 is rotated by rotating the connecting plate 9 until the threaded rod 10 rotates out of the threaded hole 11, thereby facilitating the removal and replacement of the two tension springs 8 and the clamping plate 5.

[0022] like Figures 1 to 3 As shown, a groove 12 is provided on one side of the mounting ring 2 4. A sealing ring 13 is bonded to the inner wall of the groove 12. The sealing ring 13 abuts against the mounting ring 1 3. When the watch case 1 and the watch cover 2 are installed together, the mounting ring 2 4 and the sealing ring 13 on the mounting ring 2 4 abut against the mounting ring 1 3. The sealing ring 13 can increase the sealing between the mounting ring 1 3 and the mounting ring 2 4, and prevent fluid from leaking out between the mounting ring 1 3 and the mounting ring 2 4.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pressure gauge, comprising a casing (1) and a cover (2), characterized in that: The outer peripheral wall of the watch case (1) is welded with a mounting ring one (3), and the outer peripheral wall of the watch cover (2) is welded with a mounting ring two (4) coaxially arranged with the mounting ring one (3). The outer diameters of the mounting ring one (3) and the mounting ring two (4) are equal and they fit together. The outer peripheral walls of the mounting ring one (3) and the mounting ring two (4) are provided with a number of clamping plates (5) for clamping the two. The clamping plates (5) are provided with clamping grooves (6). The inner walls of the clamping grooves (6) respectively abut against the outer walls of the mounting ring one (3) and the mounting ring two (4).

2. The pressure gauge according to claim 1, characterized in that: Both mounting ring one (3) and mounting ring two (4) are provided with several corresponding receiving grooves (7), and two tension springs (8) are provided between the inner wall of the receiving groove (7) of mounting ring one (3) and the clamping plate (5).

3. The pressure gauge according to claim 2, characterized in that: One end of the tension spring (8) is fixedly connected to the inner wall of the clamping groove (6), and the other end of the tension spring (8) is detachably connected to the inner wall of the receiving groove (7).

4. The pressure gauge according to claim 3, characterized in that: A connecting plate (9) is glued to the same end of both tension springs (8). The connecting plate (9) is detachably connected to the inner wall of the receiving groove (7) of the mounting ring one (3). The connecting plate (9) is in contact with the inner wall of the receiving groove (7) of the mounting ring two (4). A threaded rod (10) is fixedly connected to the connecting plate (9). The inner wall of the receiving groove (7) of the mounting ring one (3) is provided with a threaded hole (11) for cooperating with the threaded rod (10).

5. The pressure gauge according to claim 1, characterized in that: The mounting ring 2 (4) has a groove (12) on one side, and a sealing ring (13) is fixedly connected to the inner wall of the groove (12). The sealing ring (13) abuts against the mounting ring 1 (3).

6. The pressure gauge according to claim 1, characterized in that: The number of clamps (5) is five, and the five clamps (5) are distributed in a circumferential array along the mounting ring one (3) or mounting ring two (4).

7. The pressure gauge according to claim 1, characterized in that: The mounting ring 1 (3), mounting ring 2 (4), and clamping plate (5) are all made of stainless steel.

Images