Axial bourdon tube type pressure gauge
By using spliced adapter design and argon arc ring welding fixing in an axial Bourden tube pressure gauge, the channel polishing problem is solved, and the accurate measurement and safety of high-purity gases are achieved.
Patent Information
- Application Number
- CN202422425628.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The passage between the existing axial Bourden tube pressure gauge between the connector and the Bourden tube is difficult to polish, resulting in inaccurate measurement of high-purity gases and easy to leak air, causing environmental pollution and personnel injury.
The two spliced adapters are designed to separate the channel set for easy polishing and cleaning, and the first and second splicing parts are solidly connected by argon arc ring welding to avoid leakage during the flow of the medium.
It realizes pure measurement of high-purity gases, ensures the measurement accuracy of the pressure gauge, and avoids environmental pollution and personnel injury.
Smart Images
Figure CN223122372U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of pressure gauges, and more specifically, to an axial Bourdon tube pressure gauge. Background Art
[0002] A pressure gauge refers to an instrument that uses an elastic element as a sensitive element to measure and indicate a pressure higher than the ambient pressure. It is extremely widely used and almost covers all industrial processes and scientific research fields. Among them, the most common elastic element is the Bourdon tube. The Bourdon tube is an elastic sensitive element that measures pressure by using the bending or torsional deformation of the tube. One end of it is fixed, and the other end is movable. Its cross-sectional shape is oval or flat. The non-circular cross-section tube gradually expands into a circular shape under the action of the internal pressure. At this time, the movable end generates a displacement that has a certain relationship with the magnitude of the pressure. The movable end drives the pointer through the movement mechanism to indicate the magnitude of the pressure.
[0003] However, in the existing axial Bourdon tube pressure gauges, the connector and the Bourdon tube are connected through an adapter. However, due to the tortuous internal channel, it cannot be directly polished, and it is difficult to meet the pure measurement requirements of some high-purity gases. If the side-opening method is used for polishing, air leakage is likely to occur during use, resulting in measurement errors of the pressure gauge and causing environmental pollution and even harm to personnel. Utility Model Content
[0004] To solve the above technical problems, this application is proposed. The advantage of this application is to provide an axial Bourdon tube pressure gauge, which splits the channel group through two spliced first adapters and second adapters, so as to facilitate the polishing and cleaning treatment of the inside of the channel, and can meet the pure measurement requirements of high-purity gases; in addition, by using argon arc ring welding to fixedly connect the tubular first splicing piece and the second splicing piece, leakage during the flow of the medium to be measured is avoided, the measurement accuracy of the pressure gauge is guaranteed, and environmental pollution and harm to personnel are avoided.
[0005] To achieve the above at least one advantage, this application provides an axial Bourdon tube pressure gauge, which is characterized in that it includes: a case, a connector, a sensitive component, and a movement mechanism. The sensitive component and the movement mechanism are arranged inside the case. One end of the connector is connected to the sensitive component, and the other end passes through the case axially to be connected to the medium to be measured; the sensitive component includes a Bourdon tube and an adapter. One end of the Bourdon tube is connected to the movement mechanism in a transmissible manner, and the other end is connected to the adapter. The adapter includes a connected first adapter and a second adapter. A channel group is provided in the connector and the adapter, and the medium to be measured is introduced into the Bourdon tube from the channel group.
[0006] In the above-mentioned axial Bourdon tube pressure gauge, the channel group includes a first channel, a second channel, and a third channel that are connected in sequence. The first channel is disposed within the connector, the second channel is disposed within the first adapter, the third channel is disposed within the second adapter, and one end of the third channel is connected to the Bourdon tube. The first channel and the Bourdon tube are connected through the second channel and the third channel.
[0007] In the above-mentioned axial Bourdon tube pressure gauge, a first splicing member is provided on the first adapter, and a second splicing member is provided on the second adapter. The first splicing member and the second splicing member are fixedly spliced.
[0008] In the above-mentioned axial Bourdon tube pressure gauge, the first splicing member and the second splicing member are tubular members, and the first splicing member and the second splicing member are fixedly spliced by argon arc circumferential welding.
[0009] In the above-mentioned axial Bourdon tube pressure gauge, the Bourdon tube is fixedly connected to the second adapter by welding.
[0010] In the above-mentioned axial Bourdon tube pressure gauge, the Bourdon tube has a curved arc structure. When the medium to be measured is introduced into the Bourdon tube, the Bourdon tube is driven to deform.
[0011] In the above-mentioned axial Bourdon tube pressure gauge, it further includes a pointer disposed within the case, and the pointer is drivably connected to the movement.
[0012] Through the understanding of the subsequent description and the drawings, the further objectives and advantages of the present application will be fully reflected. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] By describing the embodiments of the present application in more detail in conjunction with the drawings, the above-mentioned and other objectives, features, and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.
[0014] Figure 1 FIG. shows a schematic diagram of the overall structure of an axial Bourdon tube pressure gauge according to an embodiment of the present application.
[0015] Figure 2 FIG. shows a schematic diagram of the internal structure of an axial Bourdon tube pressure gauge according to an embodiment of the present application.
[0016] Figure 3 FIG. shows a schematic diagram of the structure of a sensitive component according to an embodiment of the present application.
[0017] Figure 4 The figure is a schematic structural diagram of a channel group according to an embodiment of the present application.
[0018] In the figure:
[0019] Watch case 1; Connector 2; Sensing component 3; Bourdon tube 31; Adapter 32; First adapter 321; First splicing piece 3211; Second adapter 322; Second splicing piece 3221; Movement 4; Pointer 5; Channel group 10; First channel 10a; Second channel 10b; Third channel 10c. Detailed implementation manners
[0020] Next, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein.
[0021] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" cannot be understood as a limitation on the number.
[0022] In the disclosure of the present utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as a limitation on the present utility model.
[0023] As Figure 1 and Figure 2 shown, the structure of an axial Bourdon tube pressure gauge according to an embodiment of the present application is illustrated. The axial Bourdon tube pressure gauge includes a watch case 1, a connector 2, a sensing component 3, and a movement 4. The sensing component 3 and the movement 4 are disposed inside the watch case 1. One end of the connector 2 is connected to the sensing component 3, and the other end passes out axially along the watch case 1 to be connected to a medium to be measured.
[0024] Specifically, as Figure 2 and Figure 3As shown, the sensitive component 3 includes a Bourdon tube 31 and an adapter 32. One end of the Bourdon tube 31 is drivably connected to the movement 4, and the other end is connected to the adapter 32. The adapter 32 includes a first adapter 321 and a second adapter 322 connected together. A channel group 10 is provided in the connection head 2 and the adapter 32 and is interconnected. The medium to be measured is introduced into the Bourdon tube from the channel group 10. By splitting the adapter 32, it is convenient to polish and clean the inside of the channel, which can meet the pure measurement requirements of high-purity gases. Preferably, the Bourdon tube 31 is in a bent arc structure. When the medium to be measured is introduced into the Bourdon tube 31, it drives the Bourdon tube 31 to deform.
[0025] More specifically, the channel group 10 includes a first channel 10a, a second channel 10b, and a third channel 10c that are connected in sequence. The first channel 10a is provided in the connection head 2, the second channel 10b is provided in the first adapter 321, the third channel 10c is provided in the second adapter 322, and one end of the third channel 10c is connected to the Bourdon tube 31. The first channel 10a and the Bourdon tube 31 are connected through the second channel 10b and the third channel 10c. It should be understood that in the example of this application, the Bourdon tube 31 is welded and fixedly connected to the second adapter 322.
[0026] Preferably, a first splicing part 3211 is provided on the first adapter 321, and a second splicing part 3221 is provided on the second adapter 322. The first splicing part 3211 and the second splicing part 3221 are fixedly spliced. Among them, the first splicing part 3211 and the second splicing part 3221 are tubular parts, and the first splicing part 3211 and the second splicing part 3221 are fixedly spliced by argon arc circumferential welding. Through such a design, it can effectively avoid leakage during the flow of the medium to be measured, ensure the measurement accuracy of the pressure gauge, and avoid environmental pollution and personal injury.
[0027] Furthermore, the axial Bourdon tube pressure gauge further includes a pointer 5 provided in the case 1. The pointer 5 is drivably connected to the movement 4. When the medium to be measured flows in from the first channel 10a, passes through the second channel 10b and the third channel 10c and is introduced into the Bourdon tube 31, the bending change or torsional deformation of the Bourdon tube 31 is used to drive the movement 4, thereby controlling the rotation of the pointer 5 to indicate the scale.
[0028] It should be understood that the movement 4 is not the key point to be protected in this application, so the specific structure is not drawn in the figure.
[0029] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.
Claims
1. An axial Bourdon tube pressure gauge, characterized in that, Comprising: A watch case, a connector, a sensitive component, and a movement. The sensitive component and the movement are disposed within the watch case. One end of the connector is connected to the sensitive component, and the other end extends out along the axial direction of the watch case to connect with the medium to be measured. The sensitive component includes a Bourdon tube and an adapter. One end of the Bourdon tube is connected to the movement in a drivable manner, and the other end is connected to the adapter. The adapter includes a first adapter and a second adapter connected together. A channel group is provided and connected within the connector and the adapter, and the medium to be measured is introduced into the Bourdon tube through the channel group.
2. The axial Bourdon tube pressure gauge according to claim 1, wherein, The channel group includes a first channel, a second channel, and a third channel that are sequentially connected. The first channel is disposed within the connector, the second channel is disposed within the first adapter, the third channel is disposed within the second adapter, and one end of the third channel is connected to the Bourdon tube, connecting the first channel and the Bourdon tube through the second channel and the third channel.
3. The axial Bourdon tube pressure gauge according to claim 2, characterized in that, A first splicing member is provided on the first adapter, and a second splicing member is provided on the second adapter. The first splicing member and the second splicing member are fixedly connected and spliced.
4. The axial Bourdon tube pressure gauge according to claim 3, characterized in that, The first splicing member and the second splicing member are tubular members, and the first splicing member and the second splicing member are fixedly connected and spliced by argon arc circumferential welding.
5. The axial Bourdon tube pressure gauge according to claim 1, characterized in that, The Bourdon tube is fixedly connected to the second adapter by welding.
6. The axial Bourdon tube pressure gauge according to claim 1, characterized in that, The Bourdon tube is of a curved arc structure. When the medium to be measured is introduced into the Bourdon tube, it drives the Bourdon tube to deform.
7. An axial Bourdon tube pressure gauge according to claim 1, wherein It further includes a pointer disposed within the watch case, and the pointer is connected to the movement in a drivable manner.