Pressure gauge capable of releasing pressure
By designing pressure relief holes and test components in the pressure gauge, the problem of traditional pressure detection instruments lacking effective pressure relief in pressure emergencies is solved, and effective pressure relief is achieved when overpressure or pressure rises sharply, ensuring the safety of equipment and personnel.
Patent Information
- Application Number
- CN202421742304.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-22
AI Technical Summary
Traditional pressure detection instruments lack effective pressure relief mechanisms and cannot effectively discharge pressure in case of sudden pressure, which may lead to equipment damage and personal safety threats.
A pressure relief pressure gauge is designed, including a main sensor, a pressure display module, a test channel and a test assembly. The test assembly includes a slider, a first elastic member, a piston rod and a piston. The test passage is provided with a pressure relief hole in communication with a pressure relief bearing device or an external environment for eliminating pressure when overpressure or pressure rises sharply.
Through the design of the pressure relief hole, effective pressure relief is achieved when overpressure or pressure rises sharply, ensuring the safety of the equipment and the personal safety of the operator.
Smart Images
Figure CN222774185U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of measurement technology, and in particular to a pressure gauge capable of pressure relief. Background Art
[0002] In industrial production and experimental processes, many devices and instruments involve pressure requirements or exist in pressure environments. To ensure operational safety and stable operation of equipment, pressure detection has become an indispensable part. Conventional pressure detection instruments, such as pressure gauges, are widely used in various scenarios to monitor and display the pressure status inside the system or equipment in real time, providing key data support for operators.
[0003] However, these traditional pressure detection instruments mainly focus on the pressure measurement function, and often lack effective pressure relief mechanisms when faced with sudden pressure situations, such as overpressure or a sharp rise in pressure. In practical applications, once the pressure exceeds the safe range, not only the pressure gauge itself may be damaged, but also the connected instruments and equipment and even the personal safety of the operator may be endangered. Utility Model Content
[0004] The purpose of the present application is to provide a pressure gauge with pressure relief, which can improve the above-mentioned problems.
[0005] The embodiment of the present application is implemented as follows:
[0006] The present application provides a pressure-relief type pressure gauge, which includes a main sensor, a pressure display module, a test channel, and a test assembly disposed in the test channel;
[0007] The head end of the test channel is provided with an inlet; the test assembly comprises a sliding member, a first elastic member, a piston rod and a piston; the end of the sliding member facing the inlet is connected to the piston through the piston rod, and the end of the sliding member away from the inlet is fixed to the end of the test channel through the first elastic member; when no pressure to be tested is applied, the first elastic member is in a non-deformed state in the test channel, so that the sliding member is stationary at a target equilibrium position, and the piston just blocks the inlet and does not squeeze the inlet;
[0008] The test channel is provided with a pressure relief hole, and the pressure relief hole is located between the inlet and the target equilibrium position; the pressure relief hole is connected to the pressure relief receiving device or the external environment through the outlet;
[0009] The main sensor is used to monitor the sliding distance of the sliding member, and the pressure display module is used to display the corresponding pressure according to the sliding distance.
[0010] During normal use, the inlet is connected to the equipment or instrument for the pressure to be measured, and the outlet is connected to the pressure relief device or the external environment. Liquids and special gases can be relieved into the "pressure relief device", or conventional gases can be relieved into the atmosphere. When the pressure to be measured is applied to the piston from the inlet, the pressure to be measured will push the sliding part along the piston rod to move toward the end of the test channel, thereby squeezing the first elastic component; the piston has good contact with the test channel, so that the cavities on both sides of the piston can be isolated. When the pressure to be measured is withdrawn from the piston, the first elastic component restores its deformation and pushes the sliding part to slide toward the inlet. During the process, the main sensor monitors the sliding distance of the sliding part, and the pressure display module displays the corresponding pressure according to the sliding distance, thereby testing the current pressure value to be measured.
[0011] When the pressure to be tested increases to the upper limit of the safety value, the piston moves to the end of the test channel until it blocks the pressure relief hole. If the pressure increases slightly again, the piston immediately exceeds the pressure relief hole, so that the pressure relief hole of the test channel is connected to the pressure relief receiving device or the external environment, and the pressure relief purpose is achieved.
[0012] It can be understood that the present application discloses a pressure gauge capable of pressure relief, including a main sensor, a pressure display module, a test channel, and a test assembly arranged in the test channel; the test assembly converts the pressure to be measured into the displacement of the sliding part, and monitors the displacement of the sliding part through the main sensor, and then displays the corresponding pressure according to the sliding distance through the pressure display module. Among them, a pressure relief hole connected to the pressure relief receiving device or the external environment is arranged in the test channel. When the pressure is over-pressured or the pressure rises sharply, the pressure can be directly discharged through the pressure relief hole, forming an effective pressure relief mechanism to ensure the safety of the connected instruments and equipment and the personal safety of the operators.
[0013] In an optional embodiment of the present application, the pressure-relief pressure gauge also includes a processor, which is electrically connected to the main sensor and the pressure display module, respectively. The processor is specifically used to receive an electrical signal of the sliding distance fed back by the main sensor, and control the pressure display module to display the corresponding pressure according to the electrical signal.
[0014] Optionally, the pressure display module includes at least one of an electronic pointer dial and an electronic display.
[0015] Optionally, the main sensor includes but is not limited to at least one of the following:
[0016] A potentiometer displacement sensor, comprising a sliding resistor, a touch point on the sliding resistor being connected to the sliding member, and the potentiometer displacement sensor monitoring and feeding back an electrical signal of the resistance value of the sliding resistor;
[0017] A photoelectric sensor is disposed at the end of the test channel, emitting a light beam to the sliding member and receiving a reflected light beam from the sliding member, wherein the photoelectric sensor monitors and feeds back an electrical signal of the time length from the emission of the light beam to the reception of the light beam;
[0018] The capacitive displacement sensor comprises a fixed capacitor plate and a movable capacitor plate, wherein the movable capacitor plate is connected to the sliding member, and the capacitive displacement sensor monitors and feeds back an electrical signal of the capacitance between the fixed capacitor plate and the movable capacitor plate.
[0019] In an optional embodiment of the present application, the pressure display module is a mechanical display module, including a mechanical pointer and a mechanical dial with a scale; the main sensor is a second elastic component, one end of the second elastic component is connected to the sliding member, and the other end of the second elastic component is connected to the mechanical pointer through a third elastic component; when the sliding member is displaced, the second elastic component is deformed, which is then transmitted to the mechanical pointer through the third elastic component and then generates corresponding rotation on the mechanical dial.
[0020] Optionally, a first stop needle and a second stop needle are further provided on the mechanical dial along the moving position of the mechanical pointer, and the first stop needle and the second stop needle are respectively provided at two ends of the scale.
[0021] In an optional embodiment of the present application, the pressure-relief pressure gauge further includes an auxiliary channel and an outlet disposed at the end of the auxiliary channel and connected to a pressure relief receiving device or the external environment; the pressure relief hole is connected to the outlet through the auxiliary channel.
[0022] In an optional embodiment of the present application, a microhole is provided at the end of the test channel so that the test channel is connected to the pressure relief receiving device or the external environment, and the spatial changes brought about by the movement of the piston will not generate a reaction force on the piston to hinder its advancement.
[0023] In an optional embodiment of the present application, the pressure relief hole is movable between the inlet and the target equilibrium position.
[0024] In an optional embodiment of the present application, the test channel includes an inner wall and an outer wall; the inner wall is provided with a strip hole located between the inlet and the target equilibrium position; the length of the outer wall is smaller than the length of the inner wall, and the outer wall can reciprocate relative to the inner wall under the action of manual or mechanical external force; an opening is provided on the outer wall, and the opening constitutes the pressure relief hole when aligned with the strip hole; as the outer wall reciprocates, the opening moves on the strip hole, thereby realizing the movement of the pressure relief hole between the inlet and the target equilibrium position.
[0025] In an optional embodiment of the present application, the sliding member includes a rigid ball.
[0026] In an optional embodiment of the present application, the first elastic component includes a spring.
[0027] In an optional embodiment of the present application, the second elastic component includes at least one of a spring sheet and a spring; the third elastic component includes at least one of a spring sheet and a spring.
[0028] Beneficial effects:
[0029] The present application discloses a pressure gauge capable of pressure relief, including a main sensor, a pressure display module, a test channel, and a test assembly arranged in the test channel; the test assembly converts the pressure to be measured into the displacement of a sliding part, and monitors the displacement of the sliding part through the main sensor, and then displays the corresponding pressure according to the sliding distance through the pressure display module. Among them, a pressure relief hole connected to a pressure relief receiving device or the external environment is arranged in the test channel. When overpressure or a sharp rise in pressure occurs, the pressure can be directly discharged through the pressure relief hole, forming an effective pressure relief mechanism to ensure the safety of the connected instruments and equipment and the personal safety of the operators.
[0030] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0032] Figure 1 It is a structural schematic diagram of a pressure-relief type pressure gauge provided in the present application;
[0033] Figure 2 This is a schematic diagram of the connection relationship between a main sensor and a pressure display module provided by the present application;
[0034] Figure 3 This is a schematic diagram of the splitting of a test channel provided in this application. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0036] The present application provides a pressure-relief type pressure gauge, which includes a main sensor, a pressure display module, a test channel, and a test component arranged in the test channel.
[0037] like Figure 1 As shown, the curve in the figure is a section line, the part above the curve is a schematic diagram of the appearance structure, and the part below the curve is a cross-sectional view. In the figure, an inlet 2 is provided at the head end of the test channel 1; the test assembly includes a sliding member 3, a first elastic member 4, a piston rod 5 and a piston 6; the end of the sliding member 3 facing the inlet 2 is connected to the piston 6 through the piston rod 5, and the end of the sliding member 3 away from the inlet 2 is fixed to the end of the test channel 1 through the first elastic member 4; the first elastic member 4 is in a non-deformed state in the test channel 1, so that the sliding member 3 is stationary at the target equilibrium position, and the piston 6 just blocks the inlet 2 and does not squeeze the inlet 2.
[0038] like Figure 1 As shown, a pressure relief hole 7 is provided on the test channel 1 , and the pressure relief hole 7 is located between the inlet 2 and the above-mentioned target equilibrium position; the pressure relief hole 7 is connected to the pressure relief receiving device or the external environment through the outlet 14 .
[0039] When the piston 6 blocks the inlet 2, the pressure relief hole 7 is located between the inlet 2 and the sliding member 3; the pressure relief hole 7 is connected to the pressure relief receiving device.
[0040] The main sensor is used to monitor the sliding distance of the sliding member 3, and the pressure display module is used to display the corresponding pressure according to the sliding distance.
[0041] During normal use, the inlet 2 is connected to the equipment or instrument for the pressure to be measured, and the outlet 14 is connected to the pressure relief receiving device or the external environment, so that the liquid and special gas can be relieved into the "pressure relief receiving device", or the conventional gas can be relieved into the atmosphere. When the pressure to be measured is applied to the piston 6 from the inlet 2, the pressure to be measured will push the sliding member 3 along the piston rod 5 to move toward the end of the test channel 1, thereby squeezing the first elastic component 4; the piston 6 has good contact with the test channel 1, so that the cavities on both sides of the piston 6 can be isolated. When the pressure to be measured is withdrawn from the piston 6, the first elastic component 4 restores its deformation and pushes the sliding member 3 to slide toward the inlet 2. During the process, the main sensor monitors the sliding distance of the sliding member 3, and the pressure display module displays the corresponding pressure according to the sliding distance, thereby testing the current pressure value to be measured.
[0042] When the pressure to be measured increases to the upper limit of the safety value, the piston 6 continues to move toward the end of the test channel 1 until it blocks the pressure relief hole 7. When the pressure increases slightly again, the piston 6 immediately exceeds the pressure relief hole 7, so that the pressure relief hole 7 of the test channel 1 is connected to the pressure relief receiving device or the external environment, and the pressure relief purpose is achieved.
[0043] It can be understood that the present application discloses a pressure gauge capable of pressure relief, including a main sensor, a pressure display module, a test channel 1, and a test assembly disposed in the test channel 1; the test assembly converts the pressure to be measured into the displacement of the sliding member 3, and monitors the displacement of the sliding member 3 through the main sensor, and then displays the corresponding pressure according to the sliding distance through the pressure display module. Among them, a pressure relief hole 7 connected to the pressure relief receiving device or the external environment is provided in the test channel 1. When overpressure or a sharp rise in pressure occurs, the pressure can be directly discharged through the pressure relief hole 7, forming an effective pressure relief mechanism to ensure the safety of the connected instruments and equipment and the personal safety of the operator.
[0044] In an optional embodiment of the present application, Figure 2 As shown, the pressure-relief type pressure gauge also includes a processor 20, which is electrically connected to the main sensor 21 and the pressure display module 22 respectively. The processor 20 is specifically used to receive the electrical signal of the sliding distance fed back by the main sensor 21, and control the pressure display module 22 to display the corresponding pressure according to the electrical signal.
[0045] Optionally, the pressure display module 22 includes at least one of an electronic pointer plate and an electronic display, wherein the electronic display includes an LED display, an OLED display, a liquid crystal display, and the like.
[0046] Optionally, the main sensor 21 includes but is not limited to at least one of the following:
[0047] A potentiometer displacement sensor includes a sliding resistor, a touch point on the sliding resistor is connected to a sliding member, and the potentiometer displacement sensor monitors and feeds back an electrical signal of the resistance value of the sliding resistor;
[0048] A photoelectric sensor is arranged at the end of the test channel, emitting a light beam to the sliding member and receiving a reflected light beam from the sliding member, and the photoelectric sensor monitors and feeds back an electrical signal of the time length from the emission of the light beam to the reception of the light beam;
[0049] The capacitive displacement sensor comprises a fixed capacitor plate and a movable capacitor plate. The movable capacitor plate is connected to a sliding member. The capacitive displacement sensor monitors and feeds back an electrical signal of the capacitance between the fixed capacitor plate and the movable capacitor plate.
[0050] In an optional embodiment of the present application, Figure 1 and 2As shown, the pressure display module is a mechanical display module, including a mechanical pointer 8 and a mechanical dial 9 with a scale; the main sensor is a second elastic component 10, one end of the second elastic component 10 is connected to the sliding member 3, and the other end of the second elastic component 10 is connected to the mechanical pointer 8 through a third elastic component (not shown in the figure); when the sliding member 3 is displaced, the second elastic component 10 is caused to deform, and then transmitted to the mechanical pointer 8 through the third elastic component and then generates corresponding rotation on the mechanical dial 9.
[0051] Optionally, a first stop needle 11 and a second stop needle 12 are further provided on the mechanical dial 9 along the moving position of the mechanical pointer 8 , and the first stop needle 11 and the second stop needle 12 are respectively provided at two ends of the scale.
[0052] In an optional embodiment of the present application, Figure 1 As shown, the pressure relief type pressure gauge further includes an auxiliary channel 13 and an outlet 14 disposed at the end of the auxiliary channel 13 and connected to a pressure relief receiving device or an external environment; the pressure relief hole 7 is connected to the outlet 14 through the auxiliary channel 13 .
[0053] In an optional embodiment of the present application, a microhole (not shown in the figure) is provided at the end of the test channel 1, so that the test channel 1 is connected to the pressure relief receiving device or the external environment. During the movement of the piston 6, the spatial change of the cavity on the right side of the piston 6 will not generate a reaction force on the piston 6 to hinder its advancement.
[0054] In an optional embodiment of the present application, the pressure relief hole 7 can move between the inlet 2 and the target equilibrium position.
[0055] In an optional embodiment of the present application, the test channel 1 includes an inner wall 31 and an outer wall 32. Figure 3 The figure shows a schematic diagram of the disassembly of the test channel 1, in which only the inner wall 31 and the outer wall 32 are shown in sheet form. The actual shapes of the inner wall 31 and the outer wall 32 can be determined according to the test channel 1, such as a square tube shape, a round tube shape, etc. Figure 3 The inner wall 31 is provided with a strip hole 33 located between the inlet 2 and the target equilibrium position; the length of the outer wall 32 is less than that of the inner wall 31, and the outer wall 32 can reciprocate relative to the inner wall 31 under the action of manual or mechanical external force; an opening 34 is provided on the outer wall 32, and the opening 34 constitutes the above-mentioned pressure relief hole 7 when aligned with the strip hole 33; as the outer wall 32 reciprocates, the opening 34 moves on the strip hole 33, thereby realizing the movement of the above-mentioned pressure relief hole 7 between the inlet 2 and the target equilibrium position.
[0056] In an optional embodiment of the present application, the sliding member 3 includes a rigid ball.
[0057] In an optional embodiment of the present application, the first elastic component 4 includes a spring.
[0058] In an optional embodiment of the present application, the second elastic component 10 includes at least one of a spring sheet and a spring; the third elastic component includes at least one of a spring sheet and a spring.
[0059] The expressions "first", "second", "the first" or "the second" used in various embodiments of the present disclosure may modify various components regardless of order and / or importance, but these expressions do not limit the corresponding components. The above expressions are only configured for the purpose of distinguishing an element from other elements. For example, a first user device and a second user device represent different user devices, although both are user devices. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.
[0060] When one element (e.g., a first element) is referred to as being "(operably or communicatively) coupled" or "(operably or communicatively) coupled to" or "connected to" another element (e.g., a second element), it is understood that the one element is directly connected to the other element or the one element is indirectly connected to the other element via yet another element (e.g., a third element). Conversely, it is understood that when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled" to another element (the second element), no element (e.g., a third element) is interposed between the two.
[0061] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.
[0062] The above description is only an optional embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.
[0063] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A pressure gauge with pressure relief, characterized in that: include: A main sensor, a pressure display module, a test channel, and a test component arranged in the test channel; The head end of the test channel is provided with an inlet; the test assembly comprises a sliding member, a first elastic member, a piston rod and a piston; the end of the sliding member facing the inlet is connected to the piston through the piston rod, and the end of the sliding member away from the inlet is fixed to the end of the test channel through the first elastic member; when no pressure to be tested is applied, the first elastic member is in a non-deformed state in the test channel, so that the sliding member is stationary at a target equilibrium position, and the piston just blocks the inlet and does not squeeze the inlet; The test channel is provided with a pressure relief hole, and the pressure relief hole is located between the inlet and the target equilibrium position; the pressure relief hole is connected to the pressure relief receiving device or the external environment through the outlet; The main sensor is used to monitor the sliding distance of the sliding member, and the pressure display module is used to display the corresponding pressure according to the sliding distance.
2. The pressure relief type pressure gauge according to claim 1, characterized in that: The pressure-relief pressure gauge also includes a processor, which is electrically connected to the main sensor and the pressure display module respectively. The processor is specifically used to receive an electrical signal of the sliding distance fed back by the main sensor, and control the pressure display module to display the corresponding pressure according to the electrical signal.
3. The pressure relief type pressure gauge according to claim 2, characterized in that: The pressure display module includes at least one of an electronic pointer plate and an electronic display.
4. The pressure relief type pressure gauge according to claim 2, characterized in that: The main sensor includes but is not limited to at least one of the following: A potentiometer displacement sensor, comprising a sliding resistor, a touch point on the sliding resistor being connected to the sliding member, and the potentiometer displacement sensor monitoring and feeding back an electrical signal of the resistance value of the sliding resistor; A photoelectric sensor is disposed at the end of the test channel, emitting a light beam to the sliding member and receiving a reflected light beam from the sliding member, wherein the photoelectric sensor monitors and feeds back an electrical signal of the time length from the emission of the light beam to the reception of the light beam; The capacitive displacement sensor comprises a fixed capacitor plate and a movable capacitor plate, wherein the movable capacitor plate is connected to the sliding member, and the capacitive displacement sensor monitors and feeds back an electrical signal of the capacitance between the fixed capacitor plate and the movable capacitor plate.
5. The pressure relief type pressure gauge according to claim 1, characterized in that: The pressure display module is a mechanical display module, including a mechanical pointer and a mechanical dial with scales; The main sensor is a second elastic component, one end of which is connected to the sliding member, and the other end of which is connected to the mechanical pointer via a third elastic component. When the sliding member is displaced, the second elastic component is deformed, which is then transmitted to the mechanical pointer via the third elastic component to generate corresponding rotation on the mechanical dial.
6. The pressure relief type pressure gauge according to claim 5, characterized in that: A first stop needle and a second stop needle are also provided on the mechanical dial along the moving position of the mechanical pointer, and the first stop needle and the second stop needle are respectively provided at two ends of the scale.
7. The pressure relief type pressure gauge according to any one of claims 1 to 6, characterized in that: The pressure-relief pressure gauge further comprises an auxiliary channel and an outlet arranged at the end of the auxiliary channel and connected to a pressure-relief receiving device or an external environment; the pressure-relief hole is connected to the outlet through the auxiliary channel.
8. The pressure relief type pressure gauge according to any one of claims 1 to 6, characterized in that: A microhole is arranged at the end of the test channel, so that the test channel is communicated with the pressure relief receiving device or the external environment.
9. The pressure relief type pressure gauge according to any one of claims 1 to 6, characterized in that: The pressure relief hole is movable between the inlet and the target equilibrium position.
10. The pressure relief type pressure gauge according to claim 9, characterized in that: The test channel comprises an inner wall and an outer wall; the inner wall is provided with a strip-shaped hole located between the inlet and the target equilibrium position; The length of the outer wall is smaller than that of the inner wall, and the outer wall can reciprocate relative to the inner wall under the action of manual or mechanical external force; The outer wall is provided with an opening, which forms the pressure relief hole when aligned with the strip hole; as the outer wall moves back and forth, the opening moves on the strip hole, thereby realizing the movement of the pressure relief hole between the inlet and the target equilibrium position.