Shock-proof pressure gauge

Abstract

The utility model discloses a shock-proof pressure gauge, and relates to the technical field of pressure gauges. The gas meter comprises a meter shell, a meter cover is fixedly installed on the outer wall of the meter shell, a connector is fixedly installed at the bottom of the meter shell, a damper is fixedly arranged on the outer wall of the connector, a flow limiting screw is rotationally installed in the damper, a liquid inlet is formed in the upper portion of the meter shell, and a sealing assembly is arranged at the upper end of the liquid inlet. The sealing assembly comprises a limiting disc fixedly installed on the liquid inlet, a sealing ring is arranged in the limiting disc, a sealing gasket is arranged at the upper end of the sealing ring, a sealing cover plate is arranged above the limiting disc, and two anti-skid rotary knobs are rotated to drive a threaded rod to rotate so as to fasten the sealing cover plate in the limiting disc. Effective sealing of the liquid inlet is achieved, use of the pressure gauge is improved, liquid leakage is prevented, the damping performance of the pressure gauge is improved through cooperation of the damper, the flow limiting screw and the damping liquid, and the measured pressure can be conveniently and accurately read.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure gauge technical field, concretely is a shockproof pressure gauge. BACKGROUND

[0002] Pressure gauge is a kind of instrument for measuring and displaying pressure, it is usually used to measure the pressure of gas or liquid, it converts pressure signal into readable numerical value or pointer position by mechanical or electronic mode, so that operating personnel understands the pressure condition in system.

[0003] The existing pressure gauge has some deficiencies when using, the pulsation of the pressure of measured medium impacts the internal mechanism of pressure gauge, so as to cause the pointer in pressure gauge to sway, appear pointer reading error etc., influence the accurate value of the pressure of measured medium, the existing often injects liquid into the inside of pressure gauge, but oil injection port is covered by piston, and the sealing effect is poor, it is easy to cause damping liquid to overflow when transporting, influence the later use of shockproof pressure gauge, to solve the above problems, the inventor proposes a shockproof pressure gauge to solve the above problems. UTILITY MODEL CONTENTS

[0004] To solve the problem of poor sealing effect of pressure gauge oil injection port;The utility model aims at providing a shockproof pressure gauge.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a shockproof pressure gauge, including the shell body, the shell body outer wall is fixedly installed with the cover, the shell body bottom is fixedly installed with the connector, the connector outer wall is fixedly provided with the damper, and the damper is rotatably installed with the limiting screw in the inside, the shell body upper portion is provided with the liquid inlet, and the liquid inlet upper end is provided with the sealing assembly, the sealing assembly includes the limiting disc fixedly installed on the liquid inlet, the limiting disc is provided with the sealing ring in the inside, the sealing ring upper end is provided with the sealing gasket, and the limiting disc upper portion is provided with the sealing cover plate.

[0006] Preferably, the limiting disc is provided with the installation groove in the inside, the sealing ring and sealing gasket are arranged in the installation groove, the sealing ring and sealing gasket are matched with the size of the installation groove, the sealing ring and sealing gasket are the same size, the limiting disc both sides are symmetrically provided with the anti-skid knob, the anti-skid knob outer wall is fixedly connected with the threaded rod, the sealing cover plate bottom is provided with the clamping ring, and the clamping ring is clamped and connected in the installation groove, the clamping ring is matched with the size of the installation groove, the sealing cover plate bottom clamping ring inside is symmetrically provided with two notches, the threaded rod outer wall is screw-connected in the limiting disc inside and is connected on the notch of extension end, and the limiting disc middle part liquid inlet groove is matched with the size of the liquid inlet.

[0007] Preferably, the watch case is provided with a spring tube, a connecting rod, a pointer, a dial and a gear transmission structure respectively, the gear transmission structure comprises a pinion and a sector gear, an annular groove is formed at the joint of the watch cover and the watch case, the liquid inlet is communicated with the annular groove, the watch cover and the watch case are made of airtight sealing structure, the watch cover is filled with damping liquid, and the watch cover is provided with a transparent watch glass.

[0008] Compared with the prior art, the utility model has the advantages that:

[0009] 1、The utility model discloses a limiting disc, sealing cover plate, threaded rod, sealing ring, sealing gasket and other components are arranged in the device, the sealing cover plate is fastened in the limiting disc by the threaded rod, realizes the effective sealing of the liquid inlet, avoids the liquid overflow when transporting and influences use and other problems, improves the use of the pressure gauge and prevents the liquid leakage, can not only prevent the damping liquid leakage, but also can effectively prevent the dust, moisture and other impurities in the outside from entering the watch, influences the performance and life of the pressure gauge.

[0010] 2、The utility model discloses a damper, current limiting screw, damping liquid and other components are arranged in the device, when the pressure of the measured medium is introduced into the spring tube through the pressure guide system, the current limiting screw in the damper is rotated and adjusted, the flow and flow rate of the measured medium entering the pressure gauge can be limited, the impact of the medium pressure pulsation on the internal mechanism of the pressure gauge is weakened, the pressure transmission is more stable, the shock resistance of the pressure gauge is enhanced, the damping liquid is injected into the shock resistance pressure gauge, the damping liquid can absorb and dissipate the vibration energy, slows down the swing of the pointer, the stable pressure value of the pointer is indicated, the pointer is prevented from jumping and shaking greatly and influences the reading accuracy. DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0012] Figure 1 It is a whole structure schematic view of the utility model of a shock resistance type pressure gauge.

[0013] Figure 2 It is a rear side structure schematic view of the utility model of a shock resistance type pressure gauge.

[0014] Figure 3 For Figure 1 Local partial split structure schematic diagram.

[0015] Figure 4 For Figure 3 Local partial split structure schematic diagram.

[0016] In the figure: 1, watch shell; 2, joint; 3, damper; 31, current limiting screw; 4, watch cover; 5, sealing assembly; 51, limit disc; 52, sealing cover plate; 53, sealing gasket; 54, sealing ring; 55, mounting groove; 56, anti-skid knob; 57, threaded rod; 6, pointer; 7, dial; 8, annular groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Embodiment: as Figures 1-4 shown, the present application provides a shock-resistant pressure gauge, including watch shell 1, watch shell 1 outer wall fixedly installed with watch cover 4, watch shell 1 bottom fixedly installed with joint 2, joint 2 outer wall fixedly provided with damper 3 and damper 3 inside rotatably installed with current limiting screw 31, watch shell 1 upper portion is provided with liquid inlet and the upper end of liquid inlet is provided with sealing assembly 5, sealing assembly 5 includes limit disc 51 fixedly installed on liquid inlet, limit disc 51 inside is provided with sealing ring 54, sealing ring 54 upper end is provided with sealing gasket 53, limit disc 51 upper portion is provided with sealing cover plate 52.

[0019] Limit disc 51 inside is provided with mounting groove 55, sealing ring 54 and sealing gasket 53 are all arranged in mounting groove 55, sealing ring 54 and sealing gasket 53 are adapted to the size of mounting groove 55, sealing ring 54 and sealing gasket 53 are the same size.

[0020] By adopting the above technical scheme, by setting mounting groove 55 in limit disc 51, sealing gasket 53 and sealing ring 54 are conveniently placed inside, when the clamping ring on sealing cover plate 52 extrudes sealing ring 54 and sealing gasket 53, it is relatively sealed.

[0021] Limit disc 51 both sides are symmetrically provided with anti-skid knob 56, anti-skid knob 56 outer wall is fixedly connected with threaded rod 57, sealing cover plate 52 bottom is provided with clamping ring and the clamping ring is clamped and connected in mounting groove 55, the size of clamping ring is adapted to mounting groove 55.

[0022] By adopting the above technical scheme, the sealing cover plate 52 is fastened inside the limiting disc 51 by rotating the threaded rod 57 driven by the two anti-skid knobs 56, so that the sealing cover plate 52 stably seals the liquid inlet, avoiding the problem of overflow during transportation caused by the piston clamping.

[0023] Two notches are symmetrically arranged in the inner part of the clamping ring at the bottom of the sealing cover plate 52, and the outer wall of the two threaded rods 57 is threadedly connected inside the limiting disc 51 and the extending end is connected to the notches, and the liquid inlet groove in the middle of the limiting disc 51 is matched in size with the liquid inlet.

[0024] By adopting the above technical scheme, the sealing cover plate 52 and the limiting disc 51 are connected tightly and stably, improving the sealing effect.

[0025] The spring tube, connecting rod, pointer 6, dial 7 and gear transmission structure are arranged in the watch case 1, the gear transmission structure includes a pinion and a sector gear, the annular groove 8 is arranged at the connecting part of the watch cover 4 and the watch case 1, and the liquid inlet is communicated with the annular groove 8.

[0026] By adopting the above technical scheme, when the pressure of the measured medium is introduced into the spring tube through the pressure guide system, the measured medium causes the spring tube to elastically deform, and the free end generates displacement, which drives the gear transmission mechanism to transmit to the pointer 6 of the indicating device, so that the corresponding pressure value is indicated on the dial 7 of the pointer 6. At the same time, the damping liquid filled in the outer watch cover 4 can reduce the influence of vibration and pulsation, so that the swing of the pointer 6 is damped.

[0027] The watch cover 4 and the watch case 1 are made of airtight structure, the watch cover 4 is filled with damping liquid, and the watch cover 4 is provided with a transparent watch glass.

[0028] By adopting the above technical scheme, by adopting the sealing structure of the watch cover 4, the watch case 1 and the watch glass, the internal mechanism can be effectively protected from environmental influence and pollution invasion, and the service life of the pressure gauge is improved.

[0029] Working principle: when the staff through the oil injection machine to the pressure gauge inside the infusion of glycerin or silicone oil, liquid along the liquid inlet from the annular groove 8 overflow to the surface of the cover 4, when the liquid level is appropriate to stop oil injection, at this time the staff by the sealing cover plate 52 on the clamping ring and limit disc 51 on the installation groove 55 each other connection extrusion, make its clamping ring one end extrusion installation groove 55 in the sealing gasket 53 and sealing ring 54, when the clamping ring above and installation groove 55 each other adhesion seal, by rotating two anti-skid knob 56, drive screw rod 57 rotation sealing cover plate 52 fastening in limit disc 51 inside, realize the effective sealing of liquid inlet, avoid only through the piston cover in the transport when the liquid overflow caused by shaking influence use and so on, filled with damping liquid pressure gauge using joint 2 installed in the need of pressure pipeline, when the measured medium pressure through the pressure guide system into the spring tube, using the damper 3 inside the flow limiting screw 31 rotation adjustment, can limit the measured medium into the flow and flow rate of pressure gauge, so as to weaken the medium pressure pulse on the internal mechanism of pressure gauge impact, measured medium to spring tube will occur elastic deformation, its free end displacement, make it drive gear transmission mechanism transmission to the pointer 6 of the indicating device, is the pointer 6 on the degree disc 7 on the corresponding pressure value indicated, at the same time, the outer cover 4 filled with damping liquid can slow down the influence of vibration and pulse, make the pointer 6 swing damping, so as to indicate stable reading clear.

[0030] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application claims and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A shock-resistant pressure gauge, characterized in that, The device includes a watch housing (1), a watch cover (4) is fixedly installed on the outer wall of the watch housing (1), a connector (2) is fixedly installed at the bottom of the watch housing (1), a damper (3) is fixedly installed on the outer wall of the connector (2), and a flow limiting screw (31) is rotatably installed inside the damper (3). A liquid inlet is provided on the top of the watch housing (1), and a sealing assembly (5) is provided at the upper end of the liquid inlet. The sealing assembly (5) includes a limiting plate (51) fixedly installed on the liquid inlet. A sealing ring (54) is provided inside the limiting plate (51), a sealing gasket (53) is provided at the upper end of the sealing ring (54), and a sealing cover plate (52) is provided above the limiting plate (51).

2. The shock-resistant pressure gauge as described in claim 1, characterized in that, The limiting plate (51) has an installation groove (55) inside. The sealing ring (54) and the sealing gasket (53) are both set inside the installation groove (55). The sealing ring (54) and the sealing gasket (53) are adapted to the size of the installation groove (55). The sealing ring (54) and the sealing gasket (53) are the same size.

3. A shock-resistant pressure gauge as described in claim 2, characterized in that, The limiting plate (51) is symmetrically provided with anti-slip knobs (56) on both sides. The outer wall of each anti-slip knob (56) is fixedly connected with a threaded rod (57). The bottom of the sealing cover plate (52) is provided with a snap ring, which is snapped into the inside of the mounting groove (55). The snap ring is adapted to the size of the mounting groove (55).

4. A shock-resistant pressure gauge as described in claim 3, characterized in that, The sealing cover (52) has two symmetrical slots inside the bottom snap ring. The outer walls of the two threaded rods (57) are threaded to the inside of the limiting plate (51) and the extended ends are connected to the slots. The liquid inlet groove in the middle of the limiting plate (51) is adapted to the size of the liquid inlet.

5. A shock-resistant pressure gauge as described in claim 1, characterized in that, The inside of the watch housing (1) is provided with a spring tube, a connecting rod, a pointer (6), a dial (7) and a gear transmission structure. The gear transmission structure includes a pinion and a sector gear. An annular groove (8) is provided at the connection between the watch cover (4) and the watch housing (1). The liquid inlet is connected to the annular groove (8).

6. A shock-resistant pressure gauge as described in claim 1, characterized in that, Both the watch cover (4) and the watch body (1) are made of an airtight structure. The watch cover (4) is filled with damping fluid and has a transparent watch glass inside.

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