Shockproof protection cover of mechanical pointer pressure gauge

Abstract

The invention relates to the technical field of pressure gauge protection equipment, and discloses a shockproof protection cover for a mechanical pointer pressure gauge, and the shockproof protection cover comprises a protection cover which comprises two protection housings, and the two protection housings detachably sleeve the outer side of the pressure gauge; closing the rubber ring; and the plurality of buffer damping parts are fixedly mounted in the inner cavity of the protective shell. According to the technical scheme, by arranging the closed rubber ring and the buffer damping piece, when the protective shell is subjected to external impact, the buffer damping piece can absorb and dissipate impact energy through deformation of the buffer damping piece, meanwhile, the closed rubber ring can deform when being pressed, impact force is absorbed in an auxiliary mode to a certain degree, and the service life of the protective shell is prolonged. Therefore, the impact force finally transmitted to the surface shell of the pressure gauge body can be greatly reduced, the risk of inaccurate reading caused by accumulative damage of a movement in the pressure gauge is reduced, and the accuracy of the value of the mechanical pointer pressure gauge is fully guaranteed.

Description

Technical Field

[0001] This invention relates to the field of pressure gauge protection equipment, specifically to a shockproof protective cover for a mechanical pointer pressure gauge. Background Technology

[0002] As a fundamental yet crucial metrology and safety monitoring instrument, mechanical pointer pressure gauges have long been widely used for safety protection and pressure indication in various special equipment such as boilers, pressure vessels, and pressure pipelines. The internal mechanism of a mechanical pointer pressure gauge is mainly composed of a variety of precision components, making it extremely sensitive to mechanical shocks.

[0003] Due to the importance and wide application of mechanical pointer pressure gauges, they often face complex operating environments and high reliability requirements. For example, in pressure testing and bleed operation of electric vehicle braking systems, testers frequently use mechanical pointer pressure gauges to verify the integrity of the electric vehicle's hydraulic circuit and ensure adequate brake fluid filling. Compared to gasoline vehicles, electric vehicle braking systems are typically highly integrated with energy recovery systems, resulting in a more compact structure and more complex piping layouts and test interface locations. Furthermore, at boiler and pressure pipeline installation and maintenance sites, the environment is complex, and instruments are highly susceptible to damage from handling equipment or other operations.

[0004] In the various scenarios mentioned above where mechanical pointer pressure gauges are used, these gauges are often exposed to risks from unexpected impacts such as tool slippage, equipment handling collisions, or accidental knocks during operation. Even small impacts can cause cumulative damage, such as wear on the internal gear teeth and slight deformation of the gear shaft, leading to malfunctions like reading drift, pointer jamming, or inaccurate zeroing, severely affecting measurement accuracy. Therefore, relevant personnel often install protective covers on pressure gauges.

[0005] The applicant discovered through a search that a Chinese patent, "A Protective Device for a Pressure Gauge," with publication number "CN215448299U," protects the pressure gauge by setting up a protective cover, a clamping plate, and a housing, thereby improving the pressure gauge's protective performance and giving it the advantage of good protection. When a heavy object impacts the pressure gauge, it protects it and extends the pressure gauge's service life.

[0006] The aforementioned technical solutions and most such devices on the market are rigidly mounted on the outside of the pressure gauge. Upon impact, the impact force is directly transmitted to the gauge body through the protective cover, failing to effectively buffer the energy. This damages the precision components inside the pressure gauge, directly causing errors in the pressure gauge reading. For pressure gauges used for safety protection, such errors may mask the true risk of overpressure, posing a safety hazard. For electric vehicles, pressure deviations or residual air bubbles in the braking system can affect brake feel, energy recovery coordination, and system safety. If the pressure gauge experiences reading errors due to impact damage, it will directly affect the accuracy of the test results. Therefore, we propose a shockproof protective cover for mechanical pointer pressure gauges. Summary of the Invention

[0007] The purpose of this invention is to provide a shockproof protective cover for a mechanical pointer pressure gauge to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a shockproof protective cover for a mechanical pointer pressure gauge, comprising:

[0009] The protective cover includes two protective housings, which are detachably fitted onto the outside of the pressure gauge, and at least one of the protective housings is made of a transparent material;

[0010] A sealing rubber ring is embedded and fixed on the lower side of the protective housing;

[0011] Multiple buffer damping components are fixedly installed inside the protective housing.

[0012] Preferably, the protective cover further includes a connecting mechanism, through which the two protective housings are detachably combined into a protective cover.

[0013] Preferably, a sealing strip is fixedly installed on the mating end face of one of the protective housings, and a sealing groove adapted to the sealing strip is opened on the mating end face of the other protective housing, and the sealing strip and the sealing groove are inserted into each other.

[0014] Preferably, the buffer damping element includes:

[0015] A cylindrical body, which is fixedly installed inside the protective housing;

[0016] A pusher frame is axially slidably mounted on the cylinder. A sealing ring is fitted and fixed on one side of the pusher frame inside the cylinder. The outer circumferential surface of the sealing ring is in frictional contact with the inner wall of the cylinder to form a sliding seal.

[0017] An elastic element is fixedly installed between the push frame and the cylinder.

[0018] A buffer pad is fixedly installed on the outer end of the push frame.

[0019] Preferably, an inflation component is also installed on one side of the protective cover, the protective shell is a hollow structure, the cylinder is connected to the inner cavity of the protective shell, and the sealing ring is a hollow structure, which is also connected to the inner cavity of the protective shell.

[0020] Preferably, the buffer pad includes a connecting shell, which is fixedly installed on the outer end of the push frame. A buffer airbag is embedded in the connecting shell, and at least one air inlet pipe is installed on the buffer airbag. A telescopic hose is fixedly connected between the air inlet pipe and the inner cavity of the cylinder near the protective shell.

[0021] Preferably, the inflation assembly includes:

[0022] The first inflation tube is fixedly connected to one of the protective shells;

[0023] The second inflation tube is fixedly connected to another protective shell.

[0024] A one-way air intake valve is installed inside the first air inlet pipe and on one side inside the receiving pipe;

[0025] The air distribution pipe is fixedly connected to one side of the first inflation pipe;

[0026] The receiving pipe is fixedly connected to one side of the second inflation pipe, and the receiving pipe is inserted into the air distribution pipe.

[0027] Preferably, a pressure monitoring mechanism is also installed on one side of the second inflation tube, the pressure monitoring mechanism comprising:

[0028] A connecting cylinder, wherein the cylinder wall is provided with scale values, and at least one side of the connecting cylinder where the scale values ​​are located is made of transparent material;

[0029] A metering plate, wherein the metering plate is slidably sealed to the inner wall of the connecting cylinder;

[0030] A balance hole is provided at the end of the connecting cylinder to connect the inside of the connecting cylinder with the outside atmosphere.

[0031] A spring is fixedly connected between the metering plate and the connecting cylinder.

[0032] Preferably, the outer side of the protective cover is further covered with an external protective assembly, the external protective assembly comprising:

[0033] The protective shell is made of rubber.

[0034] The two protective shells are detachably mounted on the outside of the protective shell via the mounting mechanism.

[0035] One of the protective rubber shells has an observation hole on its end face, and a protective cap is inserted into the observation hole to facilitate reading the pressure gauge value;

[0036] The protective shell and protective cover are both covered with a cushioning soft pack, which includes a packaging cloth and is filled with a non-Newtonian fluid.

[0037] The packaging fabric contains multiple divider bags, and the non-Newtonian fluid is filled in the divider bags.

[0038] Preferably, at least one of the protective housings is equipped with an alarm mechanism, the alarm mechanism including a mounting box mounted on the protective housing, the mounting box integrating a vibration sensor and an alarm.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] 1. By setting a closed rubber ring and a buffer damping component, when the protective shell is subjected to external impact, the buffer damping component will absorb and dissipate the impact energy through its own deformation. At the same time, the closed rubber ring will also deform under pressure, which will help absorb the impact force to a certain extent. This will greatly reduce the impact force that is ultimately transmitted to the pressure gauge body and shell, reduce the risk of inaccurate readings caused by cumulative damage to the internal mechanism of the pressure gauge, and ensure the accuracy of the pressure test and exhaust operation results of the electric vehicle braking system.

[0041] 2. By setting up a cylindrical body, and by designing both the protective shell and the sealing ring as hollow structures, the invention achieves the adjustment of the pre-tightening force of the sealing ring and the pre-loading of the initial position of the buffer damping component by inflating the protective shell. This allows the protective cover to adapt to pressure gauges of different sizes within a certain range and ensures the reliability of the buffer contact.

[0042] 3. By setting up a buffer airbag, an air inlet pipe, and a telescopic hose, after the gas enters the cylinder, some of the gas will also enter the buffer airbag, causing it to expand appropriately, thereby improving the softness and effectiveness of the buffer. In addition, when subjected to external impact, the push frame and buffer airbag on the impacted side will move towards the protective shell, allowing the buffer airbag to expand further, further improving the absorption and buffering effect of the impact force.

[0043] 4. By setting up a metering plate, connecting cylinder and spring, the present invention enables the operator to ensure that the internal working air pressure of the protective shell is maintained at a preset level, thereby ensuring the continuity and stability of the protective capability of the present invention.

[0044] 5. By setting up a protective shell and a hanging mechanism, this invention significantly improves the protective effect of the pressure gauge. At the same time, by setting up a packaging cloth, which is filled with a non-Newtonian fluid, it can remain soft under normal conditions, reducing obstruction to workers. However, it can be instantly strengthened in the event of a dangerous impact, providing superior cushioning and more effectively protecting the internal equipment. Attached Figure Description

[0045] Figure 1 A schematic diagram of the shockproof protective cover for a mechanical pointer pressure gauge;

[0046] Figure 2 This is a schematic diagram of the structure after the external protective components are removed in this invention;

[0047] Figure 3 This is a schematic diagram showing the structural breakdown of the two protective shells in this invention;

[0048] Figure 4 This is a schematic diagram of the structure on the other side after the two protective shells are separated in this invention;

[0049] Figure 5 This is a schematic diagram showing the structural breakdown of the protective shell and the sealing ring in this invention;

[0050] Figure 6 This is a schematic diagram of the structure of the buffer damping component in this invention;

[0051] Figure 7 This is a schematic diagram showing the disassembled structure of the connecting shell and the buffer airbag in this invention;

[0052] Figure 8 This is a schematic diagram of the structure of the inflation component in this invention;

[0053] Figure 9 This is a schematic diagram of the external protective component in this invention;

[0054] Figure 10 This is a schematic diagram showing the structural breakdown of the buffer soft package in this invention;

[0055] Legend

[0056] In the diagram: 1. Protective housing; 101. Sealing groove; 2. Connecting plate; 3. Bolt; 4. Nut; 5. Sealing ring; 6. Buffer damping component; 601. Cylinder; 602. Pushing frame; 603. Elastic component; 604. Sealing ring; 605. Connecting shell; 606. Buffer airbag; 607. Air inlet pipe; 608. Telescopic hose; 7. Inflation assembly; 701. First inflation pipe; 702. Second inflation pipe; 7 03. Receiving pipe; 704. One-way air inlet valve; 705. Air distribution pipe; 706. Metering plate; 707. Connecting cylinder; 708. Spring; 709. Balance hole; 8. External protective components; 801. Protective shell; 802. Packaging cloth; 803. Connecting column; 804. Receiving cylinder; 805. Observation hole; 806. Protective cover; 807. Separator bag; 9. Sealing strip; 10. Pressure gauge; 11. Mounting box. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] Please see Figures 1-10 The present invention provides a technical solution: a shockproof protective cover for a mechanical pointer pressure gauge, comprising a protective cover, a sealing rubber ring 5, and multiple buffer damping components 6.

[0059] The protective cover includes two protective housings 1, which are detachably fitted onto the outside of the pressure gauge 10. At least one protective housing 1 is made of transparent material to facilitate observation of the pressure gauge 10 dial reading. A sealing ring 5 is embedded and fixed on the lower side of the protective housing 1 to achieve a seal between the protective housing 1 and the pressure gauge 10 housing after installation, and to play a certain buffering role. Multiple buffer damping elements 6 are fixedly installed in the inner cavity of the protective housing 1.

[0060] After the protective cover is installed on the outside of the pressure gauge 10, if the protective housing 1 is subjected to impact forces such as slippage or bumps from external tools during operation, the buffer damping element 6 will absorb and dissipate the impact energy through its own deformation. At the same time, the sealing rubber ring 5 will also deform under pressure, which will help absorb the impact force to a certain extent. Through this buffering method, the impact force ultimately transmitted to the pressure gauge 10 body is greatly reduced, thereby reducing the risk of inaccurate readings caused by cumulative damage to the internal movement of the pressure gauge 10, and ensuring the accuracy of the pressure test and exhaust operation results of the electric vehicle braking system.

[0061] In the preferred embodiment of this technical solution, please refer to Figure 2 , Figure 3 and Figure 4 The protective cover also includes a connecting mechanism. The two protective housings 1 are detachably combined into a protective cover through the connecting mechanism, which includes multiple connecting plates 2, bolts 3 and nuts 4.

[0062] The connecting plate 2 is fixedly installed on the edge or side wall of the protective housing 1, and the connecting plate 2 has through holes for the bolts 3 to pass through.

[0063] During assembly, the two protective housings 1 are fitted together on the outside of the pressure gauge 10, aligning the corresponding connecting plates 2. Then, the bolts 3 are passed through the through holes on the two aligned connecting plates 2 in sequence, and finally tightened with the nuts 4, thereby firmly connecting the two protective housings 1 into one unit.

[0064] Furthermore, the connection mechanism is not limited to the fastening form of bolts 3 and nuts 4, but can also adopt other detachable connection methods such as snaps, latches, and locks to achieve quick assembly and separation of the two protective shells 1.

[0065] The connecting mechanism allows staff to easily and quickly assemble and disassemble the protective cover.

[0066] Furthermore, a sealing strip 9 is fixedly installed on the mating end face of one of the protective housings 1, and a sealing groove 101 adapted to the sealing strip 9 is opened on the mating end face of the other protective housing 1, and the sealing strip 9 and the sealing groove 101 are inserted and matched.

[0067] The sealing strip 9 and the sealing groove 101, together with the sealing ring 5, form a good sealing system for the protective cover. This system can provide more comprehensive protection for the dial and internal mechanism of the pressure gauge 10 in working environments where oil splashes are present, such as during electric vehicle braking system testing and exhaust, thus preventing contaminants from affecting reading accuracy or causing corrosion.

[0068] In the preferred embodiment of this technical solution, please refer to Figure 5 , Figure 6 and Figure 7 The buffer damping component 6 includes a cylinder 601, a push frame 602, an elastic element 603, and a buffer pad.

[0069] The cylindrical body 601 is fixedly installed inside the protective shell 1; the pusher frame 602 is axially slidably installed on the cylindrical body 601, and a sealing ring 604 is sleeved and fixed on one side of the pusher frame 602 inside the cylindrical body 601. The outer circumferential surface of the sealing ring 604 is in frictional contact with the inner wall of the cylindrical body 601 to form a sliding seal; the elastic element 603 is fixedly installed between the pusher frame 602 and the cylindrical body 601; and the buffer pad is fixedly installed on the outer end of the pusher frame 602.

[0070] When the protective cover is subjected to external impact, the impact force is transmitted through the protective shell 1 to the buffer damping element 6, pushing the buffer pad and the pusher frame 602 to compress into the cylinder 601. During this process, the elastic element 603 is compressed to absorb the impact energy, while the frictional contact between the sealing ring 604 and the inner wall of the cylinder 601 generates a damping effect, further dissipating energy. At the same time, during the movement of the pusher frame 602, the air inside the cylinder 601 is compressed, which can also consume some of the impact energy, thereby ensuring a sufficient buffering effect and effectively protecting the pressure gauge 10 from impact damage.

[0071] Furthermore, an inflation component 7 is installed on one side of the protective cover, and the protective shell 1 is a hollow structure with the cylinder 601 connected to the inner cavity of the protective shell 1.

[0072] Furthermore, the sealing ring 5 is a hollow structure and is connected to the inner cavity of the protective shell 1.

[0073] After the protective cover is installed on the outside of the pressure gauge 10, the protective housing 1 is inflated through the inflation assembly 7. The gas first enters the protective housing 1, and then a portion of the gas enters the hollow structure of the sealing ring 5 and the interior of the cylinder 601. The gas entering the sealing ring 5 causes it to expand radially, pressing its inner ring tightly against the outer surface of the pressure gauge 10, thus improving the installation seal and enhancing its own elastic buffering capacity. The gas entering the cylinder 601 pushes the pusher 602 and the buffer pad towards the pressure gauge 10 until the buffer pad is tightly against the outside of the pressure gauge 10. This inflation process adjusts the pre-tightening force of the sealing ring 5 and pre-loads the initial position of the buffer damping component 6, allowing the protective cover to adapt to pressure gauges 10 of different sizes within a certain range and ensuring the reliability of the buffer contact.

[0074] Furthermore, the buffer pad includes a connecting shell 605, which is fixedly installed on the outer end of the push frame 602, and a buffer airbag 606 is embedded in the connecting shell 605.

[0075] Furthermore, at least one air inlet pipe 607 is installed on the buffer airbag 606. A telescopic hose 608 is fixedly connected between the air inlet pipe 607 and the inner cavity of the cylinder 601 near the protective shell 1. The telescopic hose 608 ensures that the air circuit connection remains reliable during the reciprocating movement of the push frame 602.

[0076] When air is inflated into the cylinder 601 via the inflation component 7, some of the gas also enters the buffer airbag 606 after entering the cylinder 601, causing it to expand moderately. This allows the airbag to further absorb and disperse impact energy through its elastic deformation, thus improving the softness and effectiveness of the cushioning. Furthermore, upon external impact, the pusher 602 and buffer airbag 606 on the impacted side move towards the protective shell 1, compressing the chamber within the cylinder 601 located between the pusher 602 and the protective shell 1. The compressed air is then pushed into the buffer airbag 606 through the telescopic hose 608 and the air inlet pipe 607, allowing the buffer airbag 606 to expand further. In this way, the impact kinetic energy is converted into the deformation energy of the buffer airbag 606, and the elastic deformation of the buffer airbag 606 absorbs and disperses the impact force, thereby achieving a dynamic cushioning effect.

[0077] In the preferred embodiment of this technical solution, please refer to Figure 3 , Figure 4 and Figure 8 The inflation assembly 7 includes a first inflation pipe 701, a second inflation pipe 702, a one-way air inlet valve 704, an air distribution pipe 705, and a receiving pipe 703.

[0078] The first inflation tube 701 is fixedly connected to one of the protective housings 1; the second inflation tube 702 is fixedly connected to the other protective housing 1; a one-way air inlet valve 704 is installed inside the first inflation tube 701 and on one side inside the receiving tube 703, which allows external gas to enter in one direction and prevents internal gas from flowing back; a gas distribution tube 705 is fixedly connected to one side of the first inflation tube 701; and a receiving tube 703 is fixedly connected to one side of the second inflation tube 702, with the receiving tube 703 and the gas distribution tube 705 being inserted into each other.

[0079] When the two protective shells 1 are accurately closed, the receiving pipe 703 will enter the air distribution pipe 705, so that the air passages of the first air supply pipe 701 and the second air supply pipe 702 are connected, making it convenient for the staff to inflate the two protective shells 1 at the same time.

[0080] Furthermore, a pressure monitoring mechanism is also installed on one side of the second inflation tube 702. The pressure monitoring mechanism includes a connecting cylinder 707, a metering plate 706, a balance hole 709, and a spring 708.

[0081] The connecting cylinder 707 has a scale on its wall, and at least one side of the connecting cylinder 707 with the scale is made of transparent material for easy observation; the measuring plate 706 slides and seals with the inner wall of the connecting cylinder 707; the balance hole 709 is opened at the end of the connecting cylinder 707 to connect the inside of the connecting cylinder 707 with the outside atmosphere; and the spring 708 is fixedly connected between the measuring plate 706 and the connecting cylinder 707.

[0082] When air is injected into the protective housing 1, the gas pressure acts on the metering plate 706, causing it to overcome the elastic force of the spring 708 and generate displacement. The amount of displacement is displayed intuitively through the scale value, thereby realizing real-time monitoring of the inflation pressure. Moreover, during use, the operator can directly know the change in air pressure inside the protective housing 1 through the position of the metering plate 706. This method enables the operator to ensure that the preset working air pressure is maintained inside the protective housing 1, thereby ensuring the continuity and stability of the protective capability of this technical solution.

[0083] In the preferred embodiment of this technical solution, please refer to Figure 1 , Figure 9 and Figure 10 The outer side of the protective cover is also covered with an external protective component 8, which includes a protective shell 801 and a mounting mechanism.

[0084] Among them, the protective shell 801 is made of rubber, and the two protective shells 801 are detachably sleeved on the outside of the protective shell 1 through the hanging mechanism.

[0085] The protective housing 801 is made of rubber, which utilizes the inherent elasticity, toughness and deformation capacity of rubber to further buffer the impact and fully improve the protection effect of this technical solution on the pressure gauge 10.

[0086] Furthermore, the mounting mechanism includes multiple connecting posts 803 fixedly installed inside the protective housing 801 and multiple receiving cylinders 804 fixedly installed outside the protective housing 1. The connecting posts 803 and the receiving cylinders 804 are plugged into each other to achieve rapid installation and fixation of the external protective component 8.

[0087] Furthermore, the specific structure of the mounting mechanism is not limited to this; other connection methods such as snap-fit ​​and magnetic attraction can also be used, allowing staff to selectively install and remove the protective shell 801 as needed.

[0088] Furthermore, an observation hole 805 is provided on the end face of one of the protective shells 801, and a protective cover 806 is inserted into the observation hole 805 to facilitate reading the pressure gauge 10 value.

[0089] Furthermore, both the protective housing 801 and the protective cover 806 are covered with a cushioning pouch, which includes a packaging cloth 802 filled with a non-Newtonian fluid. The characteristic of a non-Newtonian fluid is that its viscosity changes with the impact force: it is soft under slow pressure; under high-speed impact, it instantly hardens, thus dissipating a large amount of energy. Therefore, it remains soft under normal conditions, reducing obstruction to personnel, while instantly strengthening itself in the event of a dangerous impact. Compared to traditional foam or rubber, non-Newtonian fluids have superior cushioning capabilities against high-speed, high-energy impacts, more effectively protecting internal equipment.

[0090] Furthermore, the packaging fabric 802 is densely covered with multiple divider bags 807, and the non-Newtonian fluid is filled in the divider bags 807. In this way, not only can the non-Newtonian fluid be prevented from flowing and accumulating in a certain part after gravity or long-term use, ensuring that the cushioning performance of the protective layer is uniform throughout, but the divider bags 807 also restrict the flow range of the fluid, so that the entire cushioning soft pack can better maintain its shape and coverage position, and is not easily deformed or collapsed. When an impact occurs, only the non-Newtonian fluid in a few divider bags 807 that are directly impacted will harden instantly, while the non-Newtonian fluid in other divider bags 807 can still remain soft, effectively preventing the "force relief" caused by the overall lateral flow of the non-Newtonian fluid.

[0091] In the preferred embodiment of this technical solution, please refer to Figure 2 and Figure 3 At least one protective housing 1 is equipped with an alarm mechanism, which includes a mounting box 11 installed on the protective housing 1. The mounting box 11 integrates a vibration sensor and an alarm.

[0092] When the protective housing 1 is subjected to abnormal impact or vibration, the vibration sensor is triggered and generates a signal, which in turn drives the alarm to emit an audible, visual or electrical alarm, so that the staff can promptly detect the impact on the pressure gauge 10.

[0093] Working principle: When relevant personnel need to use this technical solution to protect the pressure gauge 10, they first align the two protective housings 1 and fit them onto the outside of the pressure gauge 10 to be protected, ensuring that the sealing strip 9 and the sealing groove 101 are accurately inserted and fitted. Then, bolts 3 and nuts 4 are passed through the through holes on the aligned connecting plate 2 and tightened to firmly connect the two protective housings 1 into one unit.

[0094] Then, the staff inflates the inner cavity of the protective housing 1 through the first inflation pipe 701 using an external air supply device. The gas gradually enters the sealing ring 5 and the cylinder 601. This process causes the sealing ring 5 to expand radially, pressing the pressure gauge 10 housing to enhance the seal; at the same time, it pushes the frame 602 and the buffer airbag 606 to one side until they are tightly against the outside of the pressure gauge 10.

[0095] Subsequently, workers can install external protective components 8 according to the actual protective requirements of the working environment. Workers will then use connecting posts 803 and receiving cylinders 804 to fit two protective shells 801 onto the outside of the protective shell 1.

[0096] When an unexpected event such as tool slippage or collision impacts the pressure gauge 10, the outermost protective rubber shell 801 and the cushioning soft pad provide the first level of buffering. The remaining impact force is transmitted to the protective shell 1, where multiple buffer damping elements 6 inside provide the second level of buffering and absorption; the sealing rubber ring 5 can also help absorb part of the impact.

[0097] If the impact is abnormally severe and reaches the preset threshold of the vibration sensor, the alarm will sound to alert the staff. This effectively protects pressure gauge 10.

[0098] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0099] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shockproof protective cover for a mechanical pointer pressure gauge, characterized in that: include: The protective cover includes two protective housings (1), which are detachably fitted onto the outside of the pressure gauge (10), and at least one of the protective housings (1) is made of transparent material; A sealing ring (5) is embedded and fixed on the lower side of the protective shell (1); Multiple buffer damping elements (6) are fixedly installed in the inner cavity of the protective housing (1).

2. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 1, characterized in that: The protective cover also includes a connecting mechanism, through which the two protective housings (1) are detachably combined into a protective cover.

3. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 1, characterized in that: A sealing strip (9) is fixedly installed on the joint end face of one of the protective housings (1), and a sealing groove (101) adapted to the sealing strip (9) is opened on the joint end face of the other protective housing (1), and the sealing strip (9) and the sealing groove (101) are inserted into each other.

4. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 1, characterized in that: The buffer damping element (6) includes: A cylindrical body (601) is fixedly installed inside the protective housing (1); A pusher (602) is axially slidably mounted on the cylinder (601). A sealing ring (604) is sleeved and fixed on one side of the pusher (602) inside the cylinder (601). The outer circumferential surface of the sealing ring (604) is in frictional contact with the inner wall of the cylinder (601) to form a sliding seal. An elastic element (603) is fixedly installed between the push frame (602) and the cylinder (601); A buffer pad is fixedly installed on the outer end of the push frame (602).

5. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 4, characterized in that: An inflation component (7) is also installed on one side of the protective cover. The protective shell (1) is a hollow structure. The cylinder (601) is connected to the inner cavity of the protective shell (1). The sealing ring (5) is a hollow structure and is connected to the inner cavity of the protective shell (1).

6. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 5, characterized in that: The buffer pad includes a connecting shell (605), which is fixedly installed on the outer end of the push frame (602). A buffer airbag (606) is embedded in the connecting shell (605). At least one air inlet pipe (607) is installed on the buffer airbag (606). A telescopic hose (608) is fixedly connected between the air inlet pipe (607) and the inner cavity of the cylinder (601) near the protective shell (1).

7. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 5, characterized in that: The inflation assembly (7) includes: The first inflation tube (701) is fixedly connected to one of the protective shells (1); The second inflation tube (702) is fixedly connected to another protective housing (1); One-way air intake valve (704), the one-way air intake valve (704) is installed inside the first air filling pipe (701) and on one side inside the receiving pipe (703); The air distribution pipe (705) is fixedly connected to one side of the first air inflator (701); The receiving pipe (703) is fixedly connected to one side of the second air inflator (702), and the receiving pipe (703) is inserted into the air distribution pipe (705).

8. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 7, characterized in that: A pressure monitoring mechanism is also installed on one side of the second inflation tube (702), the pressure monitoring mechanism comprising: A connecting cylinder (707) has scale values ​​on its cylinder wall, and at least one side of the connecting cylinder (707) where the scale values ​​are located is made of transparent material; Measuring plate (706), wherein the measuring plate (706) is slidably sealed to the inner wall of the connecting cylinder (707); A balance hole (709) is provided at the end of the connecting cylinder (707) to connect the inside of the connecting cylinder (707) with the outside atmosphere; A spring (708) is fixedly connected between the metering plate (706) and the connecting cylinder (707).

9. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 1, characterized in that: The outer side of the protective cover is also covered with an external protective component (8), which includes: The protective housing (801) is made of rubber. The two protective shells (801) are detachably mounted on the outside of the protective shell (1) via the mounting mechanism; An observation hole (805) is provided on the end face of one of the protective shells (801), and a protective cover (806) is inserted into the observation hole (805) to facilitate reading the pressure gauge (10) value; The protective shell (801) and the protective cover (806) are both covered with a cushioning soft pack, which includes a packaging cloth (802) and is filled with a non-Newtonian fluid. The packaging cloth (802) is densely covered with multiple divider bags (807), and the non-Newtonian fluid is filled in the divider bags (807).

10. The shockproof protective cover for the mechanical pointer pressure gauge according to claim 1, characterized in that: An alarm mechanism is installed on at least one of the protective housings (1), the alarm mechanism including a mounting box (11) installed on the protective housing (1), the mounting box (11) integrating a vibration sensor and an alarm.

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