CN209878047U - Anti-theft component of gas waist wheel flowmeter - Google Patents

Abstract

The utility model discloses a gaseous roots flowmeter theftproof subassembly, detain, oiling plug screw and sign including the theftproof, be provided with the draw-in groove on the blind hole inner wall of oiling plug screw, the jack catch joint that the theftproof was detained is in the draw-in groove, the theftproof is detained the up end and is provided with the sign, the theftproof is detained and is constituteed by upper end and lower tip, the hexagonal inslot that the upper end position on the oiling plug screw of theftproof is detained, the up end of upper end and the up end parallel and level of oiling plug screw, the upper end below is provided with the fixed part, the fixed part is pegged graft in the slot on the oiling plug screw. The utility model discloses, the up end of upper end and the up end parallel and level of oiling plug screw have avoided the upper end to expose oiling plug screw up end, have reduced the area that the theftproof was detained and can be contacted to the degree of difficulty of dismantlement is detained in the theftproof has been improved.

Description

Anti-theft component of gas waist wheel flowmeter

Technical Field

The utility model relates to a gaseous roots flowmeter technical field specifically is a gaseous roots flowmeter theftproof subassembly.

Background

The gas waist wheel flowmeter is a positive displacement flow meter for accurately measuring gas flow, has the characteristics of high precision, good reliability, light weight, long service life, low operation noise and the like, is suitable for measuring non-corrosive gases such as natural gas, urban gas, propane, nitrogen, industrial inert gas and the like, and is widely applied to gas commercial settlement in the industries of catering, hotels and the like, gas metering of transmission and distribution pipe networks, gas metering of gas pressure regulating stations, gas metering of industrial and civil boilers and the like.

The working principle of the gas waist wheel flowmeter is as follows: when gas passes through the flowmeter, pressure difference is generated at the gas inlet end and the gas outlet end and acts on the double-waist wheel connected with the high-precision synchronous gear, so that the double-waist wheel is driven to rotate, a closed space is formed between the double-waist wheel and the inner wall of the flowmeter shell and the gland during the period of the double-waist wheel to periodically inflate and exhaust gas, the revolution number of the double-waist wheel is in direct proportion to the volume of the gas passing through the flowmeter, the rotation of the double-waist wheel is transmitted to the mechanical counter through the magnetic coupler, and the volume of the gas flowing through the metering cavity is accumulated to achieve the purpose of metering.

In the process of metering for the gas waist wheel flowmeter, very low pressure loss exists, so need the higher import bearing of precision, in order to guarantee bearing life, need use dedicated lubricating oil to maintain the bearing, guarantee the stable work of bearing, and the oil filler point is exactly that the oiling is used for the oiling lubricating oil, at present, the flowmeter on the market all has various theftproof designs, this position of oil filler point also has the theftproof design, the theftproof design generally comprises theftproof knot and oiling plug screw, oiling plug screw threaded connection is on the oil filler point, the theftproof is detained the upper end and is exposed outside the oiling plug screw, it is convenient to lead to the theftproof knot to dismantle, and it is less to twist the required torsion of theftproof knot, the theftproof effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gaseous roots flowmeter subassembly of preventing burglary, it is great to twist the torsion that the theftproof was detained needs, and the theftproof is detained and is dismantled inconveniently to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gaseous roots flowmeter anti-theft component, includes that the theftproof is detained, oiling plug screw and sign, be provided with the draw-in groove on the blind hole inner wall of oiling plug screw, the jack catch joint that the theftproof was detained is in the draw-in groove, the theftproof is detained the up end and is provided with the sign, the theftproof is detained and is constituteed by upper end and lower tip, the upper end position that the theftproof was detained is in the hexagonal inslot on the oiling plug screw, the up end of upper end and the up end parallel and level of oiling plug screw, the upper end below is provided with the fixed part, the fixed part is pegged graft in the slot on the oiling.

Preferably, the upper end portion is inscribed in a hexagonal groove.

Preferably, the fixing part is a hard plastic cylinder.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the upper end surface of the upper end part of the anti-theft buckle is flush with the upper end surface of the oil injection screw plug, so that the upper end part is prevented from being exposed out of the upper end surface of the oil injection screw plug, the area of the anti-theft buckle which can be contacted is reduced, and the difficulty of disassembling the anti-theft buckle is improved;

2. the utility model discloses, the fixed part is pegged graft in the slot on the oiling plug screw, and the torsion that wrench movement this equipment needs is great, fine improvement the theftproof effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the anti-theft buckle of the present invention;

FIG. 3 is a schematic view of the structure of the oil injection plug screw of the present invention;

FIG. 4 is a top view of the anti-theft buckle of the present invention;

fig. 5 is an assembly view of the present invention.

In the figure: 1. oil is filled into the screw plug; 2. a card slot; 3. a fixed part; 4. an anti-theft buckle; 5. identifying; 6. a lower end portion; 7. and an upper end portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a gaseous roots flowmeter anti-theft component, detain 4 including the theftproof, oiling plug screw 1 and sign 5, be provided with draw-in groove 2 on oiling plug screw 1's the blind hole inner wall, the jack catch joint of 4 is detained in draw-in groove 2 to the theftproof, 4 up ends are detained in the theftproof are provided with sign 5, 4 is detained in the theftproof is constituteed by upper end 7 and lower tip 6, 7 hexagonal inslots that the upper end 7 of 4 is detained in the theftproof are located oiling plug screw 1, the up end of upper end 7 and the up end parallel and level of oiling plug screw 1, 7 downside of upper end are provided with fixed part 3, 3 slots of pegging graft on oiling plug screw 1 of fixed part.

Specifically, the upper end portion 7 is internally tangent to the hexagonal groove, so that the attractiveness is improved.

Specifically, the fixing part 3 is a hard plastic cylinder with high hardness.

In this embodiment implementation process, with 1 threaded connection of oiling plug screw in the oiling hole, the jack catch joint that 4 were detained in the theftproof is in draw-in groove 2, and fixed part 3 is pegged graft in the slot on oiling plug screw 1, has only destroyed the theftproof and has detained 4 spanners and just can conveniently dismantle oiling plug screw 1, and the theftproof is detained 4 and can't be restoreed after destroying, rotates oiling plug screw 1 when the spanner, and fixed part 3 has great resistance, has improved the degree of difficulty of dismantling.

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

Claims (3)

1. The utility model provides a gaseous roots flowmeter anti-theft component, detains, oiling plug screw and sign including the theftproof, be provided with the draw-in groove on the blind hole inner wall of oiling plug screw, the jack catch joint that the theftproof was detained is in the draw-in groove, the theftproof is detained the up end and is provided with the sign, the theftproof is detained and is constituteed its characterized in that by upper end and lower tip: the upper end of the anti-theft buckle is positioned in a hexagonal groove on the oil injection screw plug, the upper end face of the upper end is flush with the upper end face of the oil injection screw plug, a fixing part is arranged on the lower side of the upper end, and the fixing part is inserted into a slot on the oil injection screw plug.

2. The anti-theft component of a gas roots meter of claim 1, wherein: the upper end part is internally tangent in the hexagonal groove.

3. The anti-theft component of a gas roots meter of claim 1, wherein: the fixed part is a hard plastic cylinder.