Self-sealing pressure gauge
By adopting a combined structure of rubber sealing ring, spring rod and curved plate in the self-sealing pressure gauge, the problem of leakage at the pressure gauge connection in the prior art is solved, and higher sealing and strength are achieved, ensuring the pressure gauge Stable connection to the pipe.
Patent Information
- Application Number
- CN202421003096.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The connection between the existing self-sealing pressure gauge and the connecting pipe is prone to leakage, and the sealing effect is not good.
A self-sealing pressure gauge including a pressure gauge case, a moving cylinder, a first curved plate and a second curved plate are designed, and the seal at the connection is enhanced by a combined structure of a rubber sealing ring, a spring rod and a curved plate. and strength to ensure effective protection against leakage when connected.
By rotating the pressure gauge, the connecting pipe is threaded to the external threaded pipe, and the fit between the moving barrel and the rubber sealing ring is significantly improved, the possibility of leakage is reduced, and the strength at the connection is enhanced to prevent breakage.
Smart Images
Figure CN222280016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure gauges, in particular to a self-sealing pressure gauge. Background Art
[0002] A pressure gauge is an instrument used to measure the pressure of a fluid (liquid or gas). It converts the pressure of the fluid into a corresponding physical signal, such as mechanical displacement, electrical signal or digital signal, so that people can read and record the pressure value. A self-sealing pressure gauge is a device used to measure pressure. It has a self-sealing function and can automatically close after the pressure is released to prevent leakage of the medium or entry of foreign impurities. When using a pressure gauge, it is necessary to first install the pressure gauge on the pipeline. The connection between the pressure gauge and the pipeline is mostly threaded. The external threaded pipe at the lower end of the pressure gauge is threadedly connected to the threaded hole on the connecting pipeline to fix the position of the pressure gauge.
[0003] The prior art can thread the pressure gauge onto the connecting pipe, but the connection between the existing pressure gauge and the connecting pipe is prone to leakage and the sealing effect is poor. Therefore, those skilled in the art provide a self-sealing pressure gauge to solve the problems raised in the above background technology. Utility Model Content
[0004] The purpose of the utility model is to provide a self-sealing pressure gauge to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A self-sealing pressure gauge comprises a pressure gauge case, a moving cylinder, a first arc plate and a second arc plate, wherein the lower end of the pressure gauge case is fixedly connected to a fixed cylinder, a rubber sealing ring is sleeved on the outer side of the fixed cylinder, an externally threaded tube is arranged inside the fixed cylinder, wherein the upper end of the externally threaded tube is fixedly connected to the top of the fixed cylinder, a plurality of groups of spring rods are arranged around the externally threaded tube, the outer side of the externally threaded tube is slidably connected to the moving cylinder, an annular groove is opened at the lower end of the moving cylinder, a connecting pipe is threadedly connected below the externally threaded tube, the upper end of the connecting pipe is clamped in the annular groove, a first arc plate is arranged on one side of the fixed cylinder, and a second arc plate is arranged on the other side of the fixed cylinder.
[0007] As a further solution of the utility model: both ends of the first arc-shaped plate are fixedly connected with the first protruding plate, a groove is opened on one side of the first protruding plate, one end of the first protruding plate is threadedly connected with a fixing bolt, and the other end of the first protruding plate is fixedly connected with a clamping block.
[0008] As a further solution of the utility model: both ends of the second arc-shaped plate are fixedly connected with a second protruding plate, one end of the second protruding plate is provided with a slot, wherein the card block is clamped in the slot, and the other end of the second protruding plate is fixedly connected with a protruding block, wherein the protruding block is clamped in the groove.
[0009] As a further solution of the utility model: a threaded hole is penetrated on the protruding block, wherein a fixing bolt penetrates the threaded hole and is threadedly connected with the protruding block.
[0010] As a further solution of the utility model: the upper ends of the spring rods are fixedly connected to the top of the fixed cylinder, the lower ends of the spring rods are inserted into the movable cylinder, and the lower ends of the connecting pipes are fixedly connected to the connecting cylinders, wherein the connecting cylinders have the same diameter as the fixed cylinders.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. Turning the pressure gauge can make the connecting pipe and the external threaded pipe threaded together, and the upper end of the connecting pipe will be inserted into the annular groove, which can enhance its sealing and reduce the possibility of leakage. At the same time, the movable cylinder can be used for connecting pipes of different lengths. In addition, the rubber seal is located at the connection between the connecting cylinder and the fixed cylinder, which improves the sealing of the connection.
[0013] 2. The rubber sealing ring can be fixed on the connecting tube and the fixing tube by the first arc plate and the second arc plate. Meanwhile, the first arc plate and the second arc plate can enhance the strength of the connection between the connecting tube and the fixing tube, and reduce the possibility of fracture of the connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The figure is a schematic diagram of the structure of a self-sealing pressure gauge.
[0015] Figure 2 The present invention is a schematic diagram of the structure of a fixed cylinder and an externally threaded tube in a self-sealing pressure gauge.
[0016] Figure 3 The present invention is a structural schematic diagram of a first arc plate and fixing bolts in a self-sealing pressure gauge.
[0017] Figure 4 The present invention is a structural schematic diagram of a second arc plate and a protruding block in a self-sealing pressure gauge.
[0018] Figure 5 The present invention is a structural schematic diagram of a connecting pipe and a connecting cylinder in a self-sealing pressure gauge.
[0019] Figure 6 It is a schematic diagram of the structure of a moving cylinder and a spring rod in a self-sealing pressure gauge.
[0020] In the figure: 1, pressure gauge case; 2, fixed cylinder; 3, external threaded pipe; 4, moving cylinder; 5, rubber sealing ring; 6, spring rod; 7, first arc plate; 8, second arc plate; 9, clamping block; 10, fixing bolt; 11, groove; 12, protruding block; 13, clamping groove; 14, first protruding plate; 15, second protruding plate; 16, annular groove; 17, threaded hole; 18, connecting pipe; 19, connecting cylinder. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] See also Figures 1 to 6 In the embodiment of the utility model, a self-sealing pressure gauge comprises a pressure gauge case 1, a moving cylinder 4, a first arc plate 7 and a second arc plate 8, wherein the lower end of the pressure gauge case 1 is fixedly connected to a fixed cylinder 2, a rubber sealing ring 5 is sleeved on the outer side of the fixed cylinder 2, an externally threaded tube 3 is arranged inside the fixed cylinder 2, wherein the upper end of the externally threaded tube 3 is fixedly connected to the top of the fixed cylinder 2, a plurality of groups of spring rods 6 are arranged around the externally threaded tube 3, the outer side of the externally threaded tube 3 is slidably connected to the moving cylinder 4, an annular groove 16 is provided at the lower end of the moving cylinder 4, a connecting pipe 18 is threadedly connected to the lower side of the externally threaded tube 3, and the upper end of the connecting pipe 18 is clamped in the annular groove 16, a first arc plate 7 is arranged on one side of the fixed cylinder 2, a second arc plate 8 is arranged on the other side of the fixed cylinder 2, both ends of the first arc plate 7 are fixedly connected to the first protruding plate 14, and the first protruding plate 14 is fixedly connected to the first protruding plate 14. A groove 11 is provided on one side of the output plate 14, a fixing bolt 10 is threadedly connected to one end of the first protruding plate 14, a clamping block 9 is fixedly connected to the other end of the first protruding plate 14, and a second protruding plate 15 is fixedly connected to both ends of the second arc-shaped plate 8. A clamping groove 13 is provided at one end of the second protruding plate 15, wherein the clamping block 9 is clamped in the clamping groove 13, and a protruding block 12 is fixedly connected to the other end of the second protruding plate 15, wherein the protruding block 12 is clamped in the groove 11, and a threaded hole 17 is penetrated on the protruding block 12, wherein the fixing bolt 10 penetrates the threaded hole 17 and is threadedly connected to the protruding block 12, the upper end of the spring rod 6 is fixedly connected to the top of the fixed cylinder 2, and the lower end of the spring rod 6 is inserted into the mobile cylinder 4, and the lower end of the connecting pipe 18 is fixedly connected to the connecting cylinder 19, wherein the connecting cylinder 19 has the same diameter as the fixed cylinder 2.
[0023] The working principle of the utility model is: first, the pressure gauge can be rotated to make the connecting pipe 18 threadedly connected with the external threaded pipe 3. When the external threaded pipe 3 moves downward, the upper end of the connecting pipe 18 will be inserted into the annular groove 16, and the movable cylinder 4 will move upward. Then, when the connecting cylinder 19 is connected with the fixed cylinder 2, the rubber sealing ring 5 is moved downward so that the rubber sealing ring 5 covers the connection between the connecting cylinder 19 and the fixed cylinder 2 to improve the sealing of the connection. Then, the first arc plate 7 and the second arc plate 8 are installed on both sides of the rubber sealing ring 5, wherein the clamping block 9 is clamped into the clamping groove 13, and the protruding block 12 is clamped into the groove 11, and then the protruding block 12 is fixed to the first protruding plate 14 by the fixing bolt 10, so that the rubber sealing ring 5 is fixed to the connecting cylinder 19 and the fixed cylinder 2 by the first arc plate 7 and the second arc plate 8.
[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A self-sealing pressure gauge, comprising a pressure gauge case (1), a moving cylinder (4), a first curved plate (7) and a second curved plate (8), characterized in that: The lower end of the pressure gauge case (1) is fixedly connected to a fixed cylinder (2), the outer side of the fixed cylinder (2) is sleeved with a rubber sealing ring (5), an externally threaded tube (3) is arranged inside the fixed cylinder (2), wherein the upper end of the externally threaded tube (3) is fixedly connected to the top of the fixed cylinder (2), a plurality of groups of spring rods (6) are arranged around the externally threaded tube (3), a moving cylinder (4) is slidably connected to the outer side of the externally threaded tube (3), an annular groove (16) is provided at the lower end of the moving cylinder (4), a connecting pipe (18) is threadedly connected to the lower side of the externally threaded tube (3), and the upper end of the connecting pipe (18) is clamped in the annular groove (16), a first arc plate (7) is arranged on one side of the fixed cylinder (2), and a second arc plate (8) is arranged on the other side of the fixed cylinder (2).
2. A self-sealing pressure gauge according to claim 1, characterized in that: Both ends of the first arc-shaped plate (7) are fixedly connected to a first protruding plate (14), and one side of the first protruding plate (14) is provided with a groove (11).
3. A self-sealing pressure gauge according to claim 2, characterized in that: One end of the first protruding plate (14) is threadedly connected to a fixing bolt (10), and the other end of the first protruding plate (14) is fixedly connected to a clamping block (9).
4. A self-sealing pressure gauge according to claim 1, characterized in that: Both ends of the second arc-shaped plate (8) are fixedly connected to second protruding plates (15).
5. A self-sealing pressure gauge according to claim 4, characterized in that: One end of each of the second protruding plates (15) is provided with a slot (13), wherein the block (9) is locked in the slot (13); and the other end of each of the second protruding plates (15) is fixedly connected with a protruding block (12), wherein the protruding block (12) is locked in the groove (11).
6. A self-sealing pressure gauge according to claim 5, characterized in that: The protruding block (12) is provided with a threaded hole (17) extending therethrough, wherein the fixing bolt (10) passes through the threaded hole (17) and is threadably connected to the protruding block (12).
7. A self-sealing pressure gauge according to claim 1, characterized in that: The upper ends of the spring rods (6) are fixedly connected to the top of the fixed cylinder (2), and the lower ends of the spring rods (6) are inserted into the movable cylinder (4).
8. A self-sealing pressure gauge according to claim 1, characterized in that: The lower end of the connecting pipe (18) is fixedly connected to a connecting cylinder (19), wherein the connecting cylinder (19) and the fixed cylinder (2) have the same diameter.