Anti-disassembly lock clamp for gas meter
By designing a double joint lock card for gas meter, the anti-tamping loopholes for gas pipe joints in the prior art are solved, and the simultaneous locking of gas meter pipe joints and switch valve joints is achieved, which enhances the anti-tamping effect and ensures that Safety of maintenance personnel.
Patent Information
- Application Number
- CN202323667490.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing gas meter anti-tamping lock card is only installed on the gas pipe joint, and it is impossible to determine whether the switch valve joint has been removed, and there are anti-tamping loopholes.
Design a gas meter anti-tamping lock card containing two locks with the same structure. The lock piece consists of a connecting rod and a lock plate arranged in parallel. It forms a through hole through rotationally symmetrically and snaps, and is arranged in the gas meter gas pipe joint. On the connector of the switch valve, locking the two places is achieved.
The simultaneous locking of the gas meter pipe joint and the switch valve joint is achieved, which enhances the anti-tamping effect and allows maintenance personnel to consistently identify whether the lock card has been removed privately.
Smart Images
Figure CN222166226U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas pipeline accessories, in particular to an anti-dismantling lock card for a gas meter. Background Art
[0002] The gas meter anti-tampering lock card is a device installed on the gas meter joint to prevent illegal personnel from dismantling or replacing the gas meter. If the anti-tampering lock card is damaged, the maintenance personnel can identify the possibility that the gas meter has been dismantled without authorization. For example, the Chinese utility model patent CN218326653U discloses a gas pipeline connector locking structure, which is used to fix the connected gas pipe joint to achieve an anti-tampering effect.
[0003] The gas pipeline entering the house is connected to the switch valve, and the switch valve is then connected to the gas meter air inlet through the gas pipe joint. The existing gas meter joint anti-dismantling lock cards are installed on the gas pipe joint, ignoring the anti-dismantling problem of the switch valve joint. Maintenance personnel are unable to determine whether the shape of the valve joint has been disassembled. Utility Model Content
[0004] In view of the above problems, the utility model provides a gas meter anti-disassembly lock card which can lock the gas pipe joint and the switch valve joint of the gas meter at the same time.
[0005] The technical solution used by the utility model to solve the above problems is: a gas meter anti-disassembly lock card, including two locks with the same structure, the locks include a connecting rod and two locking plates arranged in parallel and with the same structure, the locking plates include a semicircular locking plate body, the radial ends of the locking plate body are respectively provided with a first buckle body and a second buckle body, the two ends of the connecting rod are respectively connected to the second buckle bodies on the two locking plates; the two locks are arranged in rotational symmetry, the two locking plates of a lock are relatively spliced with the two locking plates on the other lock, and the first buckle bodies of the two locking plates on the lock are respectively buckled with the second buckle bodies of the two locking plates on the other lock.
[0006] The gas meter anti-disassembly lock card of the utility model is formed by buckling two locks with the same structure. The lock is provided with two parallel lock pieces, which are relatively assembled in pairs to form two through holes. The two through holes are respectively sleeved on the gas meter gas pipe joint and the switch valve joint to lock the gas meter gas pipe joint and the switch valve joint. Compared with the prior art, the above structure is advantageous in that the gas meter gas pipe joint and the switch valve can be locked at the same time, thereby playing an anti-disassembly role for both of them.
[0007] Preferably, a boss is provided on the first buckle body, and a limit cover is provided at the free end of the boss, the outer diameter of the limit cover is larger than the outer diameter of the boss and is transitioned through a step surface; the second buckle body is provided with a connecting groove, and the inner wall of the connecting groove is provided with at least two symmetrical spring sheets, one end of the spring sheet is connected to the notch of the connecting groove, and the other end of the spring sheet is away from the notch and approaches the axial direction of the connecting groove; when the boss is plugged into the connecting groove, the step surface abuts against the other end of the spring sheet.
[0008] Preferably, the end surface of the limiting cover away from the protruding column is a hemispherical surface.
[0009] Preferably, the concave surface of the locking plate body is provided with a groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 The utility model is a schematic diagram of the structure of the anti-tampering lock card of the gas meter.
[0011] Figure 2 It is an exploded view of the anti-tampering lock card of the gas meter of the utility model.
[0012] Figure 3 It is a cross-sectional view of the anti-tampering lock card of the gas meter of the present utility model.
[0013] Figure 4 for Figure 3 Enlarged view of part A in the middle.
[0014] As shown in the figure: 1. Locking piece, 11. Connecting rod, 12. Locking plate, 120. Locking plate body, 1201. Groove, 121. First buckle body, 122. Second buckle body, 2. Boss, 20. Step surface, 21. Limiting cover, 3. Connecting groove, 31. Spring piece. DETAILED DESCRIPTION
[0015] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0016] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a gas meter anti-disassembly lock card includes two locks 1 with the same structure. The lock 1 includes a connecting rod 11 and two locking plates 12 arranged in parallel and with the same structure. The locking plate 12 includes a semicircular locking plate body 120. The two radial ends of the locking plate body 120 are respectively provided with a first buckle body 121 and a second buckle body 122. The two ends of the connecting rod 11 are respectively connected to the second buckle bodies 122 on the two locking plates 12. The length of the connecting rod 11 can be set according to the distance between the gas pipe joint and the switch valve joint of the gas meter. The two locks 1 are arranged in rotational symmetry. The two locking plates 12 of the lock 1 are oppositely assembled with the two locking plates 12 on the other lock 1 to form two through holes. The first buckle bodies 121 of the two locking plates 12 on the lock 1 are respectively buckled with the second buckle bodies 122 of the two locking plates 12 on the other lock 1.
[0017] The first buckle body 121 is provided with a boss 2, and a limit cover 21 is provided at the free end of the boss 2. The outer diameter of the limit cover 21 is larger than the outer diameter of the boss 2, and the limit cover 21 is transitioned through a step surface 20. The second buckle body 122 is provided with a connecting groove 3, and the inner wall of the connecting groove 3 is provided with at least two symmetrical spring plates 31. In this example, four spring plates 31 are provided, which are evenly distributed along the circumference of the connecting groove 3. One end of the spring plate 31 is connected to the notch of the connecting groove 3, and the other end of the spring plate 31 is away from the notch and approaches the axial direction of the connecting groove 3. When the boss 2 is plugged into the connecting groove 3, the step surface 20 and the other end of the spring plate 31 abut against each other. The boss 2 is on the same side of the concave surface of the locking plate body 120 on the first buckle body 121, and the connecting groove 3 is on the same side of the concave surface of the locking plate body 120 on the second buckle body 122.
[0018] The end surface of the limiting cover 21 away from the end of the boss 2 is a hemispherical surface, which facilitates the boss 2 to be inserted into the connecting groove 3 during plug-in matching.
[0019] The concave surface of the locking piece body 120 is provided with a groove 1201. The groove 1201 can be set according to the width of the air pipe joint or the switch valve joint, so that the locking piece body 120 covers the air pipe joint and the switch valve joint.
[0020] The gas meter anti-dismantling lock card of the utility model is formed by buckling two lock members 1 with the same structure. The lock member 1 is provided with two parallel locking sheets. The two lock members 1 are relatively spliced in pairs to form two through holes. The two through holes are respectively sleeved on the gas pipe joint and the switch valve joint of the gas meter, so as to lock the gas pipe joint and the switch valve joint of the gas meter at the same time, and play an anti-dismantling role at the two places at the same time, with better consistency. Once any part of the anti-dismantling lock card of the gas meter is damaged, the maintenance personnel can identify that the anti-dismantling lock card of the gas meter has been privately dismantled.
Claims
1. A gas meter anti-tamper lock card, characterized by: The invention comprises two locking members (1) with the same structure, wherein the locking members (1) comprise a connecting rod (11) and two locking plates (12) arranged in parallel and with the same structure, wherein the locking plates (12) comprise a semicircular locking plate body (120), wherein the two radial ends of the locking plate body (120) are respectively provided with a first buckle body (121) and a second buckle body (122), and the two ends of the connecting rod (11) are respectively connected to the second buckle bodies (122) on the two locking plates (12); the two locking members (1) are arranged in a rotationally symmetrical manner, wherein the two locking plates (12) of the locking member (1) are oppositely assembled with the two locking plates (12) on the other locking member (1), and the first buckle bodies (121) of the two locking plates (12) on the locking member (1) are respectively buckled with the second buckle bodies (122) of the two locking plates (12) on the other locking member (1).
2. The gas meter anti-tampering lock card according to claim 1, characterized in that: The first buckle body (121) is provided with a convex column (2), and a limit cover (21) is provided at the free end of the convex column (2), the outer diameter of the limit cover (21) is larger than the outer diameter of the convex column (2), and the limit cover (21) is transitioned through a step surface (20); the second buckle body (122) is provided with a connecting groove (3), and the inner wall of the connecting groove (3) is provided with at least two symmetrical spring sheets (31), one end of the spring sheet (31) is connected to the notch of the connecting groove (3), and the other end of the spring sheet (31) is away from the notch and approaches the axial direction of the connecting groove (3); when the convex column (2) and the connecting groove (3) are plugged, the step surface (20) and the other end of the spring sheet (31) are abutted.
3. The gas meter anti-tampering lock card according to claim 2, characterized in that: The end surface of the limiting cover (21) away from the protruding column (2) is a hemispherical surface.
4. The gas meter anti-tampering lock card according to claim 1, characterized in that: The concave surface of the locking plate body (120) is provided with a groove (1201).