Metering tamper-proof safety protection device of gas meter

Abstract

The utility model relates to the technical field of gas meter metering, in particular to a tamper-proof safety protection device for gas meter metering. The utility model provides a tamper-proof safety protection device for metering of a gas meter, which can ensure the accuracy when an outer cover is opened to record gas reading and ensure the accuracy of gas data copying. A tamper-proof safety protection device for gas meter metering comprises an auxiliary meter, a gas meter, mounting buckles, a display meter and the like, the right side of the auxiliary meter is connected with the gas meter, the mounting buckles are arranged on the front sides of the left portion and the right portion of the gas meter, and the display meter is clamped between the mounting buckles. When the outer cover is opened in a rotating mode, the folding arm can be extruded, the folding arm moves backwards to compress the spring and controls the L-shaped rail to drive the ball valve to rotate, the ball valve rotates to block the outer connecting pipe, so that when the outer cover is opened in a rotating mode, the outer connecting pipe cannot output fuel gas, and the accuracy of recording fuel gas reading when the outer cover is opened can be guaranteed; and the accuracy of gas data copying is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas meter measurement, in particular to a gas meter measurement anti-tampering safety protection device. Background Art

[0002] Gas meter anti-tampering technology is designed to prevent unauthorized personnel from illegally operating the gas meter to ensure the accuracy and fairness of gas metering.

[0003] The existing technical solution for preventing gas meters from being tampered with is usually to place the gas meter in a sealed housing, and to provide a locking mechanism at the opening and closing door panel of the housing. The locking mechanism requires a password or a mechanical key to open, so as to achieve the purpose of preventing tampering. However, when reading the gas meter, the gas basis will be used, resulting in the reading data being inconsistent with the actual data, affecting the accuracy and fairness of the gas measurement.

[0004] Therefore, a gas meter measurement anti-tampering safety protection device has been developed that can ensure the accuracy of gas readings when the outer cover is opened and ensure the accuracy of gas data transcription. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art that when reading the gas meter, the gas basis will be used, resulting in the transcribed data being inconsistent with the actual data, thus affecting the accuracy and fairness of gas measurement, the utility model provides a gas meter measurement tamper-proof safety protection device which can ensure the accuracy of recording the gas reading when the outer cover is opened, and ensure the accuracy of gas data transcription.

[0006] The technical solution is as follows: A gas meter measurement anti-tampering safety protection device includes a sub-meter, a gas meter, a mounting buckle, a display meter, an outer cover, an external pipe, a locking mechanism and a door-blocking mechanism. The gas meter is connected to the right side of the sub-meter, mounting buckles are provided on the front of the left and right parts of the gas meter, and the display meter is clamped between the mounting buckles. The outer cover is rotatably connected to the upper front side of the gas meter, and the external pipe is connected to the top of the gas meter. Locking mechanisms are provided on the left and right parts of the gas meter, and a door-blocking mechanism is provided on the external pipe.

[0007] Preferably, a connecting pipe is provided on the lower right side of the gas meter.

[0008] Preferably, the locking mechanism includes a key plug, a swing arm, a card ball and a limit block. The left and right front sides of the gas meter are rotatably connected to the key plugs, the key plugs are connected to the swing arms, the swing arms are connected to the card balls, the card balls are engaged with the outer cover, and a plurality of limit blocks are connected to the front side of the gas meter, the limit blocks are in contact with adjacent swing arms. A key is inserted into the key plug and rotated. The rotation of the key plug drives the swing arm and the card ball to rotate. The swing arm and the card ball rotate, so that the card ball is disengaged from the outer cover, so that the outer cover can be opened normally.

[0009] Preferably, an observation window is provided on the upper portion of the outer cover.

[0010] Preferably, the door-blocking mechanism includes a spring, a guard ring, a folding arm, an L-shaped track and a ball valve. A guard ring is connected to the upper front side of the gas meter, a folding arm is slidably connected to the guard ring, the folding arm is squeezed together with the outer cover, a spring is connected between the folding arm and the gas meter, a ball valve is rotatably connected to the inside of the outer tube, L-shaped tracks are connected to the left and right sides of the ball valve, the L-shaped tracks are slidably and rotatably connected to the folding arms, the folding arms are squeezed when the outer cover is rotated to open, the folding arms move backward to compress the spring and control the L-shaped track to drive the ball valve to rotate, the ball valve rotates to block the external tube, so that when the outer cover is rotated to open, the external tube cannot output gas.

[0011] Preferably, external pipes extend out from the left and right sides of the ball valve.

[0012] The utility model has the following advantages: when the outer cover is rotated to open, the folding arm will be squeezed, and the folding arm will move backward to compress the spring and control the L-shaped track to drive the ball valve to rotate. The rotation of the ball valve blocks the external pipe, so that when the outer cover is rotated to open, the external pipe cannot output gas. This can ensure the accuracy of recording gas readings when the outer cover is opened, and ensure the accuracy of gas data transcription. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the locking mechanism of the utility model.

[0016] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the door-blocking mechanism of the utility model.

[0017] Figure numbers: 0_sub-meter, 1_gas meter, 2_installation buckle, 3_display meter, 4_outer cover, 5_external pipe, 6_locking mechanism, 61_key plug, 62_swing arm, 63_ball, 64_limit block, 7_door blocking mechanism, 70_spring, 71_guard ring, 72_folding arm, 73_L-type track, 74_ball valve. DETAILED DESCRIPTION

[0018] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] A gas meter measurement anti-tampering safety protection device, such as Figure 1 and Figure 2 As shown, it includes a sub-meter 0, a gas meter 1, a mounting buckle 2, a display meter 3, an outer cover 4, an external pipe 5, a locking mechanism 6 and a door-blocking mechanism 7. The gas meter 1 is connected to the right side of the sub-meter 0, mounting buckles 2 are provided on the front sides of the left and right parts of the gas meter 1, and the display meter 3 is clamped between the mounting buckles 2. The outer cover 4 is rotatably connected to the upper front side of the gas meter 1, and the external pipe 5 is connected to the top of the gas meter 1. Locking mechanisms 6 are provided on the left and right parts of the gas meter 1, and a door-blocking mechanism 7 is provided on the external pipe 5.

[0020] like Figure 1 and Figure 3 As shown, the locking mechanism 6 includes a key plug 61, a swing arm 62, a locking ball 63 and a limit block 64. The left and right front sides of the gas meter 1 are rotatably connected with the key plug 61, the key plug 61 is connected to the swing arm 62, the swing arm 62 is connected to the locking ball 63, the locking ball 63 is engaged with the outer cover 4, and a plurality of limit blocks 64 are connected to the front side of the gas meter 1, and the limit blocks 64 are in contact with adjacent swing arms 62.

[0021] like Figure 1 and Figure 4 As shown, the door-blocking mechanism 7 includes a spring 70, a guard ring 71, a folding arm 72, an L-shaped track 73 and a ball valve 74. The guard ring 71 is connected to the upper front side of the gas meter 1, and the folding arm 72 is slidably connected to the guard ring 71. The folding arm 72 is squeezed and fitted with the outer cover 4. A spring 70 is connected between the folding arm 72 and the gas meter 1. A ball valve 74 is rotatably connected inside the outer tube. The left and right sides of the ball valve 74 are connected to L-shaped tracks 73, and the L-shaped tracks 73 are slidably and rotatably connected to the folding arm 72.

[0022] When the utility model is used, the gas meter 1 is first installed in the gas use area. When the gas usage needs to be measured, the value of the gas meter 1 is observed through the outer cover 4 and the value is recorded. Since the key plug 61 controls the swing arm 62 and the card ball 63 to lock the outer cover 4, the outer cover 4 cannot be opened. Therefore, outsiders cannot open the outer cover 4 by themselves to tamper with the data of the gas meter 1. When the outer cover 4 needs to be opened, the operation and maintenance personnel hold the key corresponding to the key plug 61, insert the key into the key plug 61, and the key plug 61 rotates to drive the swing arm 62 and the card ball 63 to lock the outer cover 4. The locking ball 63 rotates, and the swing arm 62 and the locking ball 63 rotate, so that the locking ball 63 is disengaged from the outer cover 4, so that the outer cover 4 can be opened normally. When the outer cover 4 is rotated to open, the folding arm 72 will be squeezed, and the folding arm 72 moves backward to compress the spring 70 and control the L-shaped track 73 to drive the ball valve 74 to rotate. The ball valve 74 rotates to block the external pipe 5, so that when the outer cover 4 is rotated to open, the external pipe 5 cannot output gas, ensuring the accuracy of the gas reading when the outer cover 4 is opened and recorded; when the outer cover 4 is forcibly opened to tamper with the data, the ball valve 74 blocks the external pipe 5, so that the gas cannot be delivered.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas meter measurement anti-tampering safety protection device, characterized in that: The utility model comprises a sub-meter (0), a gas meter (1), a mounting buckle (2), a display meter (3), an outer cover (4), an external pipe (5), a locking mechanism (6) and a door-blocking mechanism (7); the right side of the sub-meter (0) is connected to the gas meter (1); the front sides of the left and right parts of the gas meter (1) are both provided with mounting buckles (2); the display meter (3) is clamped between the mounting buckles (2); the upper side of the front part of the gas meter (1) is rotatably connected to the outer cover (4); the top of the gas meter (1) is connected to the external pipe (5); the left and right parts of the gas meter (1) are both provided with locking mechanisms (6); and the external pipe (5) is provided with a door-blocking mechanism (7).

2. A gas meter measurement anti-tampering safety protection device according to claim 1, characterized in that: A connecting pipe is provided on the lower right side of the gas meter (1).

3. A gas meter measurement anti-tampering safety protection device according to claim 2, characterized in that: The locking mechanism (6) comprises a key plug (61), a swing arm (62), a locking ball (63) and a limit block (64); the front sides of the left and right parts of the gas meter (1) are both rotatably connected with the key plug (61); the key plug (61) is both connected with a swing arm (62); the swing arm (62) is both connected with a locking ball (63); the locking ball (63) is both engaged with the outer cover (4); the front side of the gas meter (1) is connected with a plurality of limit blocks (64); the limit blocks (64) are both in contact with adjacent swing arms (62).

4. A gas meter measurement anti-tampering safety protection device according to claim 3, characterized in that: An observation window is provided on the upper part of the outer cover (4).

5. A gas meter measurement anti-tampering safety protection device according to claim 4, characterized in that: The door-blocking mechanism (7) comprises a spring (70), a guard ring (71), a folding arm (72), an L-shaped track (73) and a ball valve (74). The guard ring (71) is connected to the upper front side of the gas meter (1). The folding arm (72) is slidably connected to the guard ring (71). The folding arm (72) is pressed and matched with the outer cover (4). A spring (70) is connected between the folding arm (72) and the gas meter (1). The ball valve (74) is rotatably connected inside the outer tube. The left and right sides of the ball valve (74) are connected to the L-shaped track (73). The L-shaped track (73) is slidably and rotatably connected to the folding arm (72).

6. A gas meter measurement anti-tampering safety protection device according to claim 5, characterized in that: The ball valve (74) passes through the external pipe (5) on both sides.

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