CN214066213U - Anti-stealing gas device of diaphragm gas meter - Google Patents

Abstract

The utility model discloses an anti-theft device of a membrane type gas meter, which belongs to the field of gas theft prevention and comprises a meter body, wherein the inside of the meter body is respectively provided with an air inlet pipe and an air outlet pipe, one end of the air inlet pipe and one end of the air outlet pipe extend to the top position of the meter body, one end of the air inlet pipe is connected with an air inlet connecting pipe, one end of the air outlet pipe is connected with an air outlet connecting pipe through a bolt, the air outlet pipe is arranged inside one end of the meter body, an anti-reverse ventilation device is arranged inside one end of the air outlet pipe, one side wall of the meter body, which is far away from each other, is respectively fixed with a horizontally arranged fixed plate, a first protective shell and a second protective shell are connected on the two fixed plates in a sliding way, and the pipe heads of the air inlet pipe and the air outlet pipe are respectively arranged inside the first protective shell and the second protective shell; the device does not change any structure and shape of the existing membrane type gas, prevents the gas stealing of a reverse gas meter of a user, and has the advantages of simple structure, low cost, reliable use, double protection and high safety.

Description

Anti-stealing gas device of diaphragm gas meter

Technical Field

The utility model belongs to the technical field of the gas theftproof, concretely relates to membrane type gas table prevent stealing gas device.

Background

When the gas meter is ventilated reversely according to national standards, the ventilation is not wrong, so that a user reversely installs the meter to steal gas, the conventional membrane type gas meters on the market are not provided with a reverse ventilation structure, a machine which can be used by lawless persons is provided, for the purpose of preventing gas burglary, the conventional industry generally adopts a burglary screw, a special burglary screw is used for replacing a common cross, a straight screw is used for installing the gas meter, theoretically, after the burglary screw is installed, the gas meter cannot be disassembled, reformed and stolen, and the like, the method causes the inconvenience of disassembling and assembling the gas meter and the inconvenience of subsequent overhaul and replacement, and secondly, as the gas inlet and outlet of the gas meter is not shielded, key parts such as a machine core and the like can be directly reached from the gas inlet and outlet of the gas meter, and some illegal molecules steal gas by directly penetrating through a machine core part through the gas inlet and outlet to damage the gas meter in a mode such as drilling holes at the machine core part and the gas inlet and the like by using a soldering iron, causing losses to the gas company.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a membrane type gas table's anti-theft gas device 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 an anti-theft gas device of membrane type gas table, includes the table body, the inside of the table body is equipped with intake pipe and outlet duct respectively, just the one end of intake pipe and outlet duct extends to the top position of the table body, the one end bolted connection of intake pipe has the air inlet connecting pipe, the one end bolted connection of outlet duct has the connecting pipe of giving vent to anger, the outlet duct is located the inside anti-back ventilation unit that is equipped with of the one end of the internal portion of table, all be fixed with the fixed plate that the level set up, two on the lateral wall of one side that the table body kept away from each other sliding connection has protecting crust one and protecting crust two on the fixed plate, just the tube head of intake pipe and outlet duct all is located the inside of protecting crust one and protecting crust two.

The device can avoid stealing gas and leaking gas by the mode of passing through business turn over gas port and destroying gas table such as drilling on the core, reduces or even exempts from the loss, ensures that gas company's interests are not harmd, and does not change any structure and shape of current diaphragm type gas, prevents that the user from reversely installing gas table and steals gas, and simple structure, with low costs, the reliable use, dual protection, the security is high.

As a preferred embodiment, the anti-reverse ventilation device comprises two movable valve plates hinged on the inner wall of the air outlet pipe, the two movable valve plates are semicircular and symmetrically arranged, fixed cylinders symmetrically arranged are fixed on the inner wall of the air outlet pipe, one end of each fixed cylinder is in an open design, the inner bottom wall of one end of each fixed cylinder is connected with a first spring, the other end of each first spring is connected with a pull rope, and the other end of each pull rope is connected with the corresponding movable valve plate.

By adopting the scheme, when the anti-explosion ventilation device is used for reversely installing the gas meter, the gas flows to act on the two movable valve plates to close the movable valve plates, the gas circulation is blocked, private reverse installation and gas stealing of a user and the like can be prevented, and in the process of forward installation, the first spring tensions the movable valve plates through the pull rope, so that the stability of the valve plates in the gas circulation process is ensured, and the loss of the valve plates is reduced.

As a preferred embodiment, the first protective shell and the second protective shell have the same structure, the inner side wall of one side, away from each other, of the first protective shell is connected with a connecting block, guide rods are fixed to the tops of the fixing plates, the connecting blocks are connected to the guide rods in a sliding mode, the guide rods are sleeved with two second springs, one ends of the second springs are connected to the rod bodies of the guide rods, and the other ends of the second springs are connected to the corresponding connecting blocks respectively.

Adopt above-mentioned scheme, the utilization is installed intake pipe and outlet duct's tube head inside two protecting crust to avoid stealing gas leakage by the mode that sees through business turn over gas port drilling etc. and destroy the gas table on the core, and make protecting crust one and protecting crust two autosegregation through the effort of spring two, the installation operation of the table body of being convenient for.

As a preferred embodiment, the two sides of the bottom of the first protective shell and the two sides of the bottom of the second protective shell are respectively fixed with a connecting rod which is vertically arranged, the connecting rods are connected with a fixed plate in a sliding mode, the other ends of the connecting rods are respectively connected with a lock head, and an anti-theft lock is arranged between the two lock heads.

By adopting the scheme, the two anti-theft locks are utilized to fix and lock the two protective shells, so that a lawbreaker is prevented from privately disassembling the watch body to destroy and steal gas.

As a preferred embodiment, the top of the fixing plate is provided with elongated sliding grooves, and the connecting rods are respectively slidably connected in the corresponding elongated sliding grooves.

Adopt above-mentioned scheme, through connecting rod sliding connection in rectangular shape spout for it is more stable when two protecting crust movements.

As a preferred embodiment, the top edges of the first protective shell and the second protective shell are both provided with semicircular grooves, and the inner diameters of the grooves are respectively equal to the outer diameters of the air inlet connecting pipe and the air outlet connecting pipe.

By adopting the scheme, the semicircular groove design is utilized, so that the two mounting shells are tightly attached to the pipe walls of the air inlet connecting pipe and the air outlet connecting pipe, the surface body can be prevented from being affected with damp and dust, and the protective performance is good.

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

according to the gas stealing prevention device of the membrane type gas meter, the two protection shells are arranged to be matched, the gas inlet and the gas outlet are protected, gas stealing and leakage in a mode of damaging the gas meter by drilling holes on the machine core through the gas inlet and the gas outlet can be avoided, loss is reduced or even avoided, the benefit of a gas company is protected from being damaged, and the gas stealing prevention device is simple in structure, not easy to damage and low in cost;

this anti-theft gas device of diaphragm type gas table prevents turning over vent structure through setting up, does not change any structure and shape of current diaphragm type gas, prevents that the user from turning over dress gas table and stealing gas, simple structure, and is with low costs, uses reliably, and the cooperation protecting crust carries out dual protection, and the security is high.

Drawings

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

FIG. 2 is an enlarged view of the point A of the present invention;

FIG. 3 is a top sectional view of the present invention;

fig. 4 is a side view of the present invention;

fig. 5 is a top view of the present invention.

In the figure: 1. a watch body; 2. a connecting rod; 3. a first protective shell; 4. an air inlet pipe; 5. an air inlet connecting pipe; 6. an air outlet connecting pipe; 7. an air outlet pipe; 8. connecting blocks; 9. a slide bar; 10. a fixing plate; 11. a lock head; 12. a safety lock; 13. a first spring; 14. pulling a rope; 15. a movable valve plate; 16. a fixed cylinder; 17. a second spring; 18. and a second protective shell.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Referring to fig. 1-5, the present invention provides an anti-gas-stealing device for a membrane gas meter, which comprises a meter body 1, wherein an inlet pipe 4 and an outlet pipe 7 are respectively arranged inside the meter body 1, one end of the inlet pipe 4 and one end of the outlet pipe 7 extend to the top position of the meter body 1, one end of the inlet pipe 4 is bolted with an inlet connecting pipe 5, one end of the outlet pipe 4 is bolted with an outlet connecting pipe 6, an anti-back ventilation device is arranged inside one end of the outlet pipe 4 positioned inside the meter body 1, horizontally arranged fixing plates 10 are fixed on the side walls of the meter body 1 far away from each other, a first protection shell 3 and a second protection shell 18 are slidably connected on the two fixing plates 10, the pipe heads of the inlet pipe 4 and the outlet pipe 7 are positioned inside the first protection shell 3 and the second protection shell 18, and the device can avoid gas-stealing and leaking in a mode of damaging the gas meter such as drilling on the machine core through the inlet and outlet, the loss is reduced or even eliminated, the benefit of a gas company is protected from being damaged, any structure and shape of the existing membrane type gas are not changed, the gas stealing of a user due to reverse installation of the gas meter is prevented, the structure is simple, the cost is low, the use is reliable, double protection is realized, and the safety is high.

The anti-reverse ventilation device comprises two movable valve plates 15 hinged to the inner wall of an air outlet pipe 7, the two movable valve plates 15 are semicircular and symmetrically arranged, fixed cylinders 16 symmetrically arranged are fixed on the inner wall of the air outlet pipe 7, one ends of the fixed cylinders 16 are in an open design, the inner bottom wall of one end of each fixed cylinder 16 is connected with a first spring 13, the other ends of the first springs 13 are connected with pull ropes 14, the other ends of the pull ropes 14 are respectively connected with the corresponding movable valve plates 15, when the anti-reverse ventilation device is used for reversely installing a gas meter, the two movable valve plates 15 are closed under the flowing action of gas, the gas circulation is blocked, private self reverse installation gas stealing of a user and the like can be prevented, in addition, the first springs 13 tension the movable valve plates 15 through the pull ropes 14, the stability of the valve plates in the gas circulation process is ensured, and the loss of the valve plates is reduced.

The structure of protecting crust one 3 and protecting crust two 18 is the same, all be connected with connecting block 8 on the one side inside wall that protecting crust one 3 was kept away from each other, the top of fixed plate 10 all is fixed with guide arm 9, and the equal sliding connection of connecting block 8 is on guide arm 9, two springs two 17 have all been cup jointed on guide arm 9, the one end of spring two 17 is connected on the body of rod of guide arm 9, the other end of spring two 17 is connected respectively on corresponding connecting block 8, the utilization is installed intake pipe 4 and outlet duct 7's tube head inside two protecting crust, in order to avoid stealing gas leakage by the mode that sees through the gas inlet and outlet and destroy gas table such as drilling on the core, and make protecting crust one 3 and two 18 autosegregations of protecting crust through the effort of spring two 17, be convenient for the installation operation of table body 1.

The bottom both sides of protecting crust one 3 and protecting crust two 18 all are fixed with the connecting rod 2 of vertical setting, and connecting rod 2 and fixed plate 10 sliding connection, the other end of connecting rod 2 all are connected with tapered end 11, all are equipped with pickproof lock 12 between two tapered ends 11, utilize two pickproof locks 12 to carry out the fixed lock to two protecting crust and die, prevent that lawless persons from dismantling the table body 1 privately and destroying and steal gas.

Rectangular shape spout has all been seted up at the top of fixed plate 10, and connecting rod 2 sliding connection is in corresponding rectangular shape spout respectively, through 2 sliding connection of connecting rod in rectangular shape spout for it is more stable when two protecting crust movements.

Semicircular groove has all been seted up at the top edge of protecting crust one 3 and protecting crust two 18, and the internal diameter of recess equals with the external diameter of connecting pipe 5 and the connecting pipe 6 of giving vent to anger of admitting air respectively, utilizes semicircular groove design, makes two installation shells closely laminate the pipe wall of connecting pipe 5 and the connecting pipe 6 of giving vent to anger of admitting air, can prevent that the table body 1 from weing and entering dirt, and barrier propterty is good.

When the diaphragm type gas meter is installed, the first protection shell 3 and the second protection shell 18 are in a separated state due to the acting force of the second spring 17, at the moment, the tube heads of the gas inlet pipe 4 and the gas outlet pipe 7 are exposed, the installation operation of the gas inlet connecting pipe 5 and the gas outlet connecting pipe 6 is convenient, after the installation is completed, two protection shells are respectively pushed by two hands to enable the protection shells to be close to each other, then the two protection shells are fixed by one hand, one safety lock 12 is locked and then loosened, the other safety lock 12 is locked, the fixation of the protection shells is completed, at the moment, the tube heads of the gas inlet pipe 4 and the gas outlet pipe 7 are both positioned in the protection shells, so that gas stealing and leakage in a mode of damaging the gas meter by drilling on a machine core through a gas inlet and outlet port are avoided, and the gas flow is prevented by the arranged anti-foaming ventilation device, when the gas meter is reversely installed, two movable valve plates 15 are closed under the gas flow action to block the gas circulation, can prevent that private such as user from installing instead steals gas, and during formal dress, a spring 13 passes through the taut movable valve block 15 of stay cord 14, guarantee gas circulation in-process valve block stability, reduce the valve block loss, the device can avoid stealing gas leakage by the mode that sees through business turn over gas port destruction gas table such as drilling on the core, reduce or even reduce the loss, guarantee that gas company's interests are not harmed, and do not change any structure and shape of current diaphragm type gas, prevent that user from installing instead gas table steals gas, moreover, the steam generator is simple in structure, low cost, reliable in use, double protection, high safety.

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 (6)

1. The utility model provides a membrane gas table's theftproof gas device, includes table body (1), its characterized in that: the inside of table body (1) is equipped with intake pipe (4) and outlet duct (7) respectively, just the one end of intake pipe (4) and outlet duct (7) extends to the top position of table body (1), the one end bolted connection of intake pipe (4) has inlet connection pipe (5), the one end bolted connection of outlet duct (7) has outlet connection pipe (6), outlet duct (7) are located the inside anti-breather that is equipped with of one end of table body (1) inside, all be fixed with fixed plate (10) that the level set up on the lateral wall of one side that table body (1) kept away from each other, two sliding connection has protecting crust one (3) and protecting crust two (18) on fixed plate (10), just the tube head of intake pipe (4) and outlet duct (7) all is located the inside of protecting crust one (3) and protecting crust two (18).

2. The anti-theft device for a membrane gas meter according to claim 1, characterized in that: the anti-reverse ventilation device comprises two movable valve plates (15) hinged to the inner wall of an air outlet pipe (7), the two movable valve plates (15) are semicircular and symmetrically arranged, fixed cylinders (16) symmetrically arranged are fixed on the inner wall of the air outlet pipe (7), one ends of the fixed cylinders (16) are designed in an open mode, one end of each fixed cylinder (16) is connected with a first spring (13) on the inner bottom wall, the other end of each first spring (13) is connected with a pull rope (14), and the other end of each pull rope (14) is connected with the corresponding movable valve plate (15) respectively.

3. The anti-theft device for a membrane gas meter according to claim 1, characterized in that: the structure of protecting crust one (3) and protecting crust two (18) is the same, all be connected with connecting block (8) on the one side inside wall that protecting crust one (3) was kept away from each other, the top of fixed plate (10) all is fixed with guide arm (9), just equal sliding connection of connecting block (8) is on guide arm (9), two springs two (17) have all been cup jointed on guide arm (9), the one end of spring two (17) is connected on the body of rod of guide arm (9), the other end of spring two (17) is connected respectively on corresponding connecting block (8).

4. The anti-theft device for a membrane gas meter according to claim 1, characterized in that: the bottom both sides of protecting crust one (3) and protecting crust two (18) all are fixed with connecting rod (2) of vertical setting, connecting rod (2) and fixed plate (10) sliding connection, the other end of connecting rod (2) all is connected with tapered end (11), two all be equipped with pickproof lock (12) between tapered end (11).

5. The anti-theft device for membrane gas meter according to claim 4, characterized in that: the top of the fixed plate (10) is provided with strip-shaped chutes, and the connecting rods (2) are respectively connected in the corresponding strip-shaped chutes in a sliding manner.

6. The anti-theft device for a membrane gas meter according to claim 1, characterized in that: and semicircular grooves are formed in the top edges of the first protective shell (3) and the second protective shell (18), and the inner diameters of the grooves are equal to the outer diameters of the air inlet connecting pipe (5) and the air outlet connecting pipe (6) respectively.

Images