Fixture of gas meter calibrating device
By designing a fixture for a gas meter verification device including a shell, bottom plate and adjustment mechanism, the problem of different gas meters requiring different calibration devices during calibration is solved, and flexible adaptation and easy operation of different gas meters is achieved.
Patent Information
- Application Number
- CN202421649112.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-12
AI Technical Summary
Different types of gas meters require different verification devices when checking, resulting in inconvenience in operation and increased costs.
A fixture for gas meter verification device is designed, adopting a combined structure of the shell, bottom plate and adjustment mechanism. Through the cooperation of the movable plate, fixed plate and sleeve, adaptive adjustment of gas meters of different types is achieved.
It realizes flexible adaptation to different types of gas meters, simplifies the operation process, and reduces the cost of using different verification devices.
Smart Images
Figure CN222791790U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas meter fixtures, in particular to a fixture for a gas meter calibration device. Background Art
[0002] The gas meter calibration device is a special equipment used to calibrate the performance of the gas meter. When in use, the gas meter will first be installed on the calibration device.
[0003] When clamping the gas meter, the relevant personnel will first place the gas meter on the base plate, and then move the gas meter downward so that the base plate moves downward, thereby aligning the column above the gas meter with the corresponding sleeve to complete the installation.
[0004] However, gas meters are divided into many types, such as household series, industrial series, and smart IC card gas meters. The sizes of gas meters of different types and uses may be different. The distances between the two groups of columns on gas meters of different sizes are different, while the distances between the sleeves on the calibration device are certain. This results in the need to use different types of calibration devices when calibrating gas meters of different models. Therefore, a fixture for a gas meter calibration device is proposed to solve the above problem. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a fixture for a gas meter calibration device, aiming to improve the problem in the prior art that different calibration devices need to be used when calibrating gas meters of different models.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a fixture of a gas meter calibration device comprises a shell, the outer wall of the shell is provided with a bottom plate, the top end of the bottom plate contacts the gas meter, and the side wall of the shell is provided with an adjustment mechanism;
[0007] The adjusting mechanism comprises a movable plate, a side wall of the movable plate is slidably connected to the inner wall of the shell, the inner side wall of the shell is fixedly connected to a fixed plate, the inner wall of the fixed plate is slidably connected to a movable block, the bottom end of the movable block is fixedly connected to a sleeve, the outer wall of the movable block is rotatably connected to a connecting rod, the outer wall of the movable plate is fixedly connected to a supporting block, the inner wall of the movable plate is elastically connected to a pin via a connecting spring, and the inner wall of the shell is provided with a dustproof mechanism.
[0008] As a further description of the above technical solution:
[0009] The top end of the gas meter is plugged into the inner wall of the sleeve, and the shape of the sleeve is a truncated cone.
[0010] As a further description of the above technical solution:
[0011] The outer wall of the connecting rod is rotatably connected to the outer wall of the supporting block.
[0012] As a further description of the above technical solution:
[0013] One end of the connecting spring is fixedly connected to the outer wall of the latch, the other end of the connecting spring is fixedly connected to the inner wall of the movable plate, and the outer wall of the latch is slidably connected to the inner wall of the movable plate.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the shell is provided with an inserting hole, and the outer wall of the plug is inserted into the inner wall of the inserting hole.
[0016] As a further description of the above technical solution:
[0017] The dustproof mechanism includes a dustproof seat, the outer wall of the dustproof seat is slidably connected to the inner wall of the shell, the right end of the shell is fixedly connected to a positioning seat, the inner wall of the positioning seat is elastically connected to an inclined block through a limit spring, and the top of the dustproof seat is fixedly connected to a movable plate.
[0018] As a further description of the above technical solution:
[0019] One end of the limit spring is fixedly connected to the inner wall of the positioning seat, and the other end of the limit spring is fixedly connected to the outer wall of the inclined block, and the outer wall of the inclined block is slidably connected to the inner wall of the positioning seat.
[0020] As a further description of the above technical solution:
[0021] The outer wall of the inclined block contacts the outer wall of the moving plate.
[0022] The utility model has the following beneficial effects:
[0023] 1. In the utility model, by setting the mutual cooperation between the shell, the bottom plate and its adjustment mechanism and other structures, the relevant personnel can move the pin to release the limit, and then move the movable plate so that the movable plate drives the two sets of sleeves to open or shorten, thereby adapting to different types of gas meters, and the operation is simple and convenient.
[0024] 2. In the utility model, through the mutual cooperation between the dustproof mechanism and other structures, the relevant personnel can move the dustproof seat upward when the calibration device is not in use, so that the movable plate and the top of the wedge block are in contact, thereby completing the fixation, and preventing dust from entering the clamp through the dustproof seat, thereby reducing the labor cost of manually cleaning the shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1This is an overall three-dimensional schematic diagram of a fixture of a gas meter calibration device proposed by the utility model;
[0026] Figure 2 This is a schematic diagram of the internal section of a shell of a fixture of a gas meter calibration device proposed by the utility model;
[0027] Figure 3 This is a three-dimensional schematic diagram of the sleeve and movable plate of a fixture of a gas meter calibration device proposed by the utility model;
[0028] Figure 4 This is a schematic diagram of the disassembly of a fixed plate and a movable block of a fixture of a gas meter calibration device proposed by the utility model;
[0029] Figure 5 This is a schematic diagram of the enlarged structure of position A of a fixture of a gas meter calibration device proposed by the utility model;
[0030] Figure 6 It is an overall three-dimensional schematic diagram of a dustproof seat of a fixture of a gas meter calibration device proposed by the utility model;
[0031] Figure 7 This is a schematic diagram of the enlarged structure of position B of a fixture of a gas meter calibration device proposed by the utility model.
[0032] Legend:
[0033] 1. Shell; 2. Bottom plate; 3. Gas meter; 4. Adjustment mechanism; 401. Movable plate; 402. Fixed plate; 403. Sleeve; 404. Connecting rod; 405. Latch; 406. Movable block; 407. Connecting spring; 408. Plug hole; 409. Support block; 5. Dustproof mechanism; 501. Dustproof seat; 502. Movable plate; 503. Inclined block; 504. Limiting spring; 505. Positioning seat. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] Reference Figure 1-Figure 3The utility model provides an embodiment: a fixture for a gas meter calibration device, comprising a shell 1, an outer wall of the shell 1 is provided with a bottom plate 2, the shell 1 is the overall appearance of the calibration device, the bottom plate 2 is elastic and can move downward, these are all prior arts, no further explanation is given here, the top of the bottom plate 2 is in contact with a gas meter 3, and the side wall of the shell 1 is provided with an adjustment mechanism 4; through the setting of the adjustment mechanism 4, different types of gas meters 3 can be adjusted, the adjustment mechanism 4 includes a movable plate 401, the side wall of the movable plate 401 is slidably connected to the inner wall of the shell 1, the movable plate 401 is L-shaped as a whole, the inner side wall of the shell 1 is fixedly connected with a fixed plate 402, the inner wall of the fixed plate 402 is slidably connected with a movable block 406, the inner wall of the fixed plate 402 is provided with a movable block 406 The movable plate 401 is provided with a matching slide groove, and multiple groups of movable blocks 406 are provided. The bottom end of the movable block 406 is fixedly connected with a sleeve 403, and the outer wall of the sleeve 403 is provided with a hose. The hose is provided to facilitate the calibration test of the gas meter 3. The outer wall of the movable block 406 is rotatably connected with a connecting rod 404, and the outer wall of the movable plate 401 is fixedly connected with a supporting block 409. Through the movement of the supporting block 409, the connecting rod 404 and the movable block 406 are driven to move. The inner wall of the movable plate 401 is elastically connected with a latch 405 through a connecting spring 407. The latch 405 penetrates and is slidably connected to the inner wall of the end of the movable plate 401. The penetration is convenient for manual movement of the latch 405. The inner wall of the shell 1 is provided with a dustproof mechanism 5, which can effectively prevent dust from entering the inner side wall of the shell 1.
[0036] Reference Figure 3-Figure 5 The top of the gas meter 3 is plugged into the inner wall of the sleeve 403, and the shape of the sleeve 403 is a truncated cone, which can adapt to different models of gas meters 3. The outer wall of the connecting rod 404 is rotatably connected to the outer wall of the support block 409, and the two rotate to avoid the occurrence of a motion trajectory. One end of the connecting spring 407 is fixedly connected to the outer wall of the latch 405, and the other end of the connecting spring 407 is fixedly connected to the inner wall of the movable plate 401. The outer wall of the latch 405 is slidably connected to the inner wall of the movable plate 401. The elasticity of the connecting spring 407 enables the latch 405 to have a reset and limit function. The outer wall of the shell 1 is provided with a plug hole 408, and the outer wall of the plug pin 405 is plugged into the inner wall of the plug hole 408. The plug hole 408 is provided with multiple groups, and the two are plugged to prevent the movable plate 401 from moving.
[0037] Reference Figure 1 and Figure 6The dustproof mechanism 5 includes a dustproof seat 501, the outer wall of the dustproof seat 501 is slidably connected to the inner wall of the shell 1. When the shell 1 is in use, the dustproof seat 501 can move downward and then be stored in the inner wall of the shell 1 without affecting the work of relevant personnel. The right end of the shell 1 is fixedly connected with a positioning seat 505, and the inner wall of the positioning seat 505 is elastically connected with an inclined block 503 through a limit spring 504. A square is arranged at the front end of the inclined block 503, and the square is arranged to facilitate the operation of relevant personnel. The top of the dustproof seat 501 is fixedly connected with a movable plate 502, and the movable plate 502 is arranged in an L shape, and a handle is arranged at the front end.
[0038] Reference Figure 1-Figure 3 One end of the limit spring 504 is fixedly connected to the inner wall of the positioning seat 505, and the other end of the limit spring 504 is fixedly connected to the outer wall of the inclined block 503. The outer wall of the inclined block 503 is slidably connected to the inner wall of the positioning seat 505. The elasticity of the limit spring 504 makes the inclined block 503 have a reset and fixing function. The outer wall of the inclined block 503 contacts the outer wall of the movable plate 502. An inclined surface is arranged at the bottom of the inclined block 503. The inclined surface is arranged to facilitate the upward movement of the movable plate 502, and the top of the inclined block 503 contacts the inner side wall of the movable plate 502 after being fixed.
[0039] Working principle: When the relevant personnel need to calibrate the gas meter 3, they first place the gas meter 3 on the bottom plate 2. At this time, the bottom plate 2 will move downward for a distance. When the gas meter 3 is completely placed on the bottom plate 2, the bottom plate 2 will reset and then be plugged with the sleeve 403 to complete the fixation. When it is necessary to calibrate gas meters 3 of different models, first move the latch 405 to release the limit of the latch 405 and the plug hole 408, and then move the movable plate 401. When the movable plate 401 moves, it will drive the support block 409 to move accordingly, so that the connecting rod 404 can be driven to move, and then the two groups of movable blocks 406 can be moved inward or outward, so as to adjust the distance between the two groups of sleeves 403 to adapt to gas meters 3 of different models. And because the shape of the sleeve 403 is truncated cone, it can also adapt to gas meters 3 of different sizes, and the operation is simple and convenient.
[0040] When the gas meter 3 is calibrated, the handle above the movable plate 502 can be moved so that the movable plate 502 drives the dust seat 501 to move upward. When the movable plate 502 moves to a certain extent, it will squeeze the inclined block 503, so that the inclined block 503 moves toward the inner wall of the positioning seat 505. When the movable plate 502 moves to the top, the movable plate 502 is not squeezed by the inclined block 503. Due to the elasticity of the limit spring 504, the inclined block 503 is reset, and then the top of the inclined block 503 contacts the movable plate 502, completing the fixation to prevent the dust seat 501 from moving downward as a whole. The entire interior of the shell 1 is blocked by the dust seat 501, so that when the shell 1 is not in use, dust accumulates on the shell 1, thereby increasing the labor cost of manual cleaning.
[0041] 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 fixture for a gas meter calibration device, comprising a housing (1), characterized in that: The outer wall of the shell (1) is provided with a bottom plate (2), the top end of the bottom plate (2) is in contact with a gas meter (3), and the side wall of the shell (1) is provided with an adjustment mechanism (4); The adjustment mechanism (4) comprises a movable plate (401), the side wall of the movable plate (401) is slidably connected to the inner wall of the shell (1), the inner side wall of the shell (1) is fixedly connected to a fixed plate (402), the inner wall of the fixed plate (402) is slidably connected to a movable block (406), the bottom end of the movable block (406) is fixedly connected to a sleeve (403), the outer wall of the movable block (406) is rotatably connected to a connecting rod (404), the outer wall of the movable plate (401) is fixedly connected to a supporting block (409), the inner wall of the movable plate (401) is elastically connected to a latch (405) via a connecting spring (407), and the inner wall of the shell (1) is provided with a dustproof mechanism (5).
2. The fixture for the gas meter calibration device according to claim 1, characterized in that: The top end of the gas meter (3) is plugged into the inner wall of the sleeve (403), and the shape of the sleeve (403) is a truncated cone.
3. The fixture of the gas meter calibration device according to claim 1, characterized in that: The outer wall of the connecting rod (404) is rotatably connected to the outer wall of the supporting block (409).
4. The fixture for the gas meter calibration device according to claim 1, characterized in that: One end of the connecting spring (407) is fixedly connected to the outer wall of the latch (405), and the other end of the connecting spring (407) is fixedly connected to the inner wall of the movable plate (401). The outer wall of the latch (405) is slidably connected to the inner wall of the movable plate (401).
5. The fixture for the gas meter calibration device according to claim 1, characterized in that: The outer wall of the housing (1) is provided with an inserting hole (408), and the outer wall of the plug (405) is inserted into the inner wall of the inserting hole (408).
6. The fixture for the gas meter calibration device according to claim 1, characterized in that: The dustproof mechanism (5) comprises a dustproof seat (501), the outer wall of the dustproof seat (501) is slidably connected to the inner wall of the shell (1), the right end of the shell (1) is fixedly connected to a positioning seat (505), the inner wall of the positioning seat (505) is elastically connected to an inclined block (503) via a limit spring (504), and the top end of the dustproof seat (501) is fixedly connected to a movable plate (502).
7. The fixture for the gas meter calibration device according to claim 6, characterized in that: One end of the limit spring (504) is fixedly connected to the inner wall of the positioning seat (505), and the other end of the limit spring (504) is fixedly connected to the outer wall of the inclined block (503), and the outer wall of the inclined block (503) is slidably connected to the inner wall of the positioning seat (505).
8. The fixture for the gas meter calibration device according to claim 6, characterized in that: The outer wall of the inclined block (503) contacts the outer wall of the moving plate (502).