Buckle type diaphragm capsule of diaphragm gas meter

Abstract

The utility model relates to the field of diaphragm gas meters, and discloses a buckle type diaphragm capsule of a diaphragm gas meter, which comprises a diaphragm capsule body, a side cover is arranged on the surface of the diaphragm capsule body, a disassembly and assembly structure is arranged on the surface of the side cover, the disassembly and assembly structure comprises an inserting piece, an inserting groove is arranged on the surface of the diaphragm capsule body, and the inserting groove is connected with the inserting piece. A clamping piece is fixedly connected to the lower surface of the side cover, a clamping groove is formed in the diaphragm capsule body, a connecting hole is formed in the surface of the inserting piece, a sealing plug is connected to the inner wall of the connecting hole in a threaded mode, a mounting groove is formed in the surface of the diaphragm capsule body, and a spring is fixedly connected to the inner wall of the mounting groove. The inner wall of the mounting groove is slidably connected with an anti-skid block, and a groove is formed in the surface of the anti-skid block. According to the utility model, through the arrangement of the disassembly and assembly structure, the diaphragm capsule body and the side cover can be quickly disassembled and assembled, and the diaphragm capsule body can be placed in an upright state during assembly and disassembly, so that the influence on the diaphragm capsule body caused by horizontal placement or inverted placement is avoided.

Description

Technical Field

[0001] The utility model relates to the field of diaphragm gas meters, in particular to a snap-on diaphragm box of a diaphragm gas meter. Background Art

[0002] The gas meter uses the pressure difference of gas flowing in the meter body as the driving force, and the relative position of the valve seat and the valve cover is used to control the gas flow distribution. The diaphragm box of the gas meter is composed of two identical gas measuring chambers on the left and right. Each gas measuring chamber is divided into two identical small metering chambers by a soft diaphragm.

[0003] After searching, Chinese patent announcement number: CN206132148U discloses a snap-on diaphragm box of a diaphragm gas meter. The diaphragm box and the side cover are designed to be detachable and connected by a snap-on connection method, which avoids safety problems during welding and has the advantages of easy maintenance, fast installation, and low production and transportation costs.

[0004] In the above technical solution, the safety and stability problems caused by welding are avoided by snapping the side cover and the diaphragm box together. However, after the side cover and the diaphragm box are installed, the stability of the installation of the side cover and the diaphragm box cannot be guaranteed when the diaphragm box is transported, relying only on the snap-fit ​​between the fixed slot and the connector. At the same time, when the diaphragm box needs to be loaded and unloaded, the diaphragm box cannot be placed in an upright state, so it is inevitable to place it in a lying or inverted state, which affects the subsequent use of the diaphragm box. Therefore, a snap-on diaphragm box for a diaphragm gas meter is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a snap-on diaphragm box for a diaphragm gas meter, which aims to improve the snap-on diaphragm box of the diaphragm gas meter in the prior art, avoid the problem that the transportation stability is reduced due to the single reliance on snap-on mode for installation, and prevent the diaphragm box from being unable to maintain an upright state during loading and unloading.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a snap-on diaphragm box of a diaphragm gas meter, comprising a diaphragm box body, a side cover is provided on the surface of the diaphragm box body, a disassembly structure is provided on the surface of the side cover, and the disassembly structure comprises:

[0007] A plug-in, a slot is provided on the surface of the membrane box body, a clamp is fixedly connected to the lower surface of the side cover, a clamping slot is provided on the membrane box body, a connecting hole is provided on the surface of the plug-in, a sealing plug is threadedly connected to the inner wall of the connecting hole, a mounting groove is provided on the surface of the membrane box body, and a spring is fixedly connected to the inner wall of the mounting groove;

[0008] An anti-sliding block, the inner wall of the mounting groove is slidably connected with the anti-sliding block, the surface of the anti-sliding block is provided with a groove, a connecting rod is arranged inside the groove, the outer wall of the connecting rod is threadedly connected with a positioning hole, and the surface of the membrane box body is provided with a fixing hole.

[0009] As a further description of the above technical solution:

[0010] The surface of the plug-in is provided with a stabilizing structure, the stabilizing structure includes a collar, the surface of the plug-in is fixedly connected with a first clamping block, and the inner wall of the slot is fixedly connected with a second clamping block.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the plug-in unit is matched with the inner wall of the slot, and the inner wall of the card slot is matched with the outer wall of the card member.

[0013] As a further description of the above technical solution:

[0014] One end of the spring away from the inner wall of the installation groove is fixedly connected to the outer wall of the anti-sliding block.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the connecting rod is threadedly connected to the inner wall of the anti-sliding block on one side close to the groove, and the positioning hole is arranged on the outer wall of the sealing plug.

[0017] As a further description of the above technical solution:

[0018] The fixing hole is located inside the groove, and the inner wall of the fixing hole is threadedly connected to the outer wall of the connecting rod.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the plug-in is fixedly connected to the inner wall of the collar, and one end of the collar away from the plug-in is rotatably connected to the outer wall of the side cover.

[0021] As a further description of the above technical solution:

[0022] The outer wall of the first clamping block is matched with the outer wall of the second clamping block.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, a disassembly and assembly structure is provided, and the plug-in is inserted into the slot and the card piece is inserted into the card slot, so that the side cover is fixed on the membrane box body, and the sealing plug cooperates with the connecting hole to close and block the opening of the card slot. After the connecting rod is separated from the limit of the fixed hole, the elastic force of the spring pushes the anti-sliding block out of the installation slot for a certain distance, and the connecting rod cooperates with the positioning hole so that the anti-sliding block is in a certain convex state on the surface of the side cover, so that the membrane box body and the side cover can be quickly disassembled and assembled, and the membrane box body can be kept in an upright state during loading and unloading to avoid being affected by lying or inverted.

[0025] 2. In the present invention, by providing a stable structure, the collar can drive the plug-in to rotate forward and reverse by 90 degrees, cooperate with the clamping force between the first clamping block and the second clamping block, increase the friction of the plug-in inside the slot, and improve the stability of the side cover installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic top view of the main structure of a snap-on diaphragm box of a diaphragm gas meter proposed by the utility model;

[0027] Figure 2 This is a bottom view schematic diagram of the main structure of a snap-on diaphragm box of a diaphragm gas meter proposed by the utility model;

[0028] Figure 3 The utility model provides a snap-on membrane box for a membrane gas meter. Figure 1 A magnified schematic diagram of the middle A area;

[0029] Figure 4 The utility model provides a snap-on membrane box for a membrane gas meter. Figure 1 A magnified schematic diagram of the middle B area;

[0030] Figure 5 The utility model provides a snap-on membrane box for a membrane gas meter. Figure 2 Enlarged schematic diagram of area C in the middle.

[0031] Legend:

[0032] 1. Diaphragm box body; 2. Side cover; 3. Plug-in; 4. Slot; 5. Card; 6. Card slot; 7. Connecting hole; 8. Sealing plug; 9. Mounting slot; 10. Spring; 11. Anti-sliding block; 12. Groove; 13. Connecting rod; 14. Positioning hole; 15. Fixing hole; 16. Ring; 17. Card block one; 18. Card block two. DETAILED DESCRIPTION

[0033] 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.

[0034] Reference Figure 1-Figure 3 The utility model provides an embodiment: a snap-on diaphragm box of a diaphragm gas meter, comprising a diaphragm box body 1, a side cover 2 is arranged on the surface of the diaphragm box body 1, two groups of side covers 2 are arranged, and the two groups of side covers 2 are mirror-imaged with the central axis of the diaphragm box body 1 as the axis of symmetry, and a disassembly structure is arranged on the surface of the side cover 2, and the disassembly structure includes a plug-in 3, a slot 4, a card 5, a card slot 6, a connecting hole 7, a sealing plug 8, an installation slot 9, a spring 10, an anti-sliding block 11, a groove 12, a connecting rod 13, a positioning hole 14, and a fixing hole 15.

[0035] Reference Figure 1-Figure 3 A slot 4 is provided on the surface of the diaphragm box body 1, a card member 5 is fixedly connected to the lower surface of the side cover 2, a card slot 6 is provided on the diaphragm box body 1, a connecting hole 7 is provided on the surface of the plug 3, a sealing plug 8 is threadedly connected to the inner wall of the connecting hole 7, the sealing plug 8 is arranged in an inverted T shape, and the bottom area of ​​the sealing plug 8 is concavely arranged to block the opening of the card slot 6. At the same time, a concave handle is provided on the surface of the sealing plug 8 for easy hand holding, a mounting groove 9 is provided on the surface of the diaphragm box body 1, a spring 10 is fixedly connected to the inner wall of the mounting groove 9, an anti-slip block 11 is slidably connected to the inner wall of the mounting groove 9, the anti-slip block 11 is made of rubber material, and the anti-slip block 11 has an anti-slip function when the side cover 2 is placed, a groove 12 is provided on the surface of the anti-slip block 11, a connecting rod 13 is provided inside the groove 12, and a positioning hole 14 is threadedly connected to the outer wall of the connecting rod 13, and a fixing hole 15 is provided on the surface of the diaphragm box body 1, and the aperture diameter of the fixing hole 15 is equal to that of the positioning hole 14.

[0036] Reference Figure 1-Figure 3The outer wall of the plug-in 3 is adapted to the inner wall of the slot 4, and two groups of plug-ins 3 and slots 4 are respectively provided, and the two groups of plug-ins 3 and slots 4 are symmetrically arranged with the central axis of the side cover 2 as the axis of symmetry. The inner wall of the card slot 6 is adapted to the outer wall of the card member 5. The number of card slots 6 and card members 5 is equal to that of the plug-in 3. The diameter of the opening of the card slot 6 is smaller than the diameter of the card member 5. The end of the spring 10 away from the inner wall of the mounting groove 9 is fixedly connected to the outer wall of the anti-sliding block 11. The outer wall of the connecting rod 13 is threadedly connected to the inner wall of the anti-sliding block 11 on the side close to the groove 12. The groove 12 is convenient for the operator to contact the connecting rod 13. The connecting rod 13 is manually moved to make it rotate forward. The connecting rod 13 will gradually move out from the inner wall of the anti-sliding block 11 until it is connected to the positioning hole 14. The positioning hole 14 is opened on the outer wall of the sealing plug 8. The fixing hole 15 is located inside the groove 12, and the inner wall of the fixing hole 15 is threadedly connected to the outer wall of the connecting rod 13.

[0037] Reference Figure 4-Figure 5 The surface of the plug-in 3 is provided with a stable structure, which includes a collar 16. A card block 17 is fixedly connected to the surface of the plug-in 3. A card block 2 18 is fixedly connected to the inner wall of the slot 4. The materials of the card block 17 and the card block 2 18 are both rubber materials. The rubber material has friction and a certain deformation force. The outer wall of the plug-in 3 is fixedly connected to the inner wall of the collar 16. The end of the collar 16 away from the plug-in 3 is rotatably connected to the outer wall of the side cover 2. The collar 16 can only rotate forward or reverse 90 degrees on the side cover 2. When the collar 16 rotates forward, the card block 17 and the card block 2 18 are engaged with each other. Otherwise, the card block 17 and the card block 2 18 are no longer engaged. The outer wall of the card block 17 is adapted to the outer wall of the card block 2 18.

[0038] Working principle: When installing the side cover 2, first take the side cover 2 and insert the plug-in 3 into the corresponding slot 4. At this time, the card piece 5 will be connected with the card slot 6, and then the ring 16 is manually rotated forward to make the card block 17 and the card block 2 18 engage with each other, and the sealing plug 8 is inserted into the connecting hole 7 and then rotated forward until the sealing plug 8 completely blocks and closes the opening of the card slot 6, and the connecting rod 13 is manually turned to reverse it. The connecting rod 13 will gradually break away from the connection with the fixing hole 15, and the elastic force of the spring 10 will cause the anti-sliding block 11 to pop out a part of the inside of the installation groove 9, and the connecting rod 13 is manually turned to rotate forward until the connecting rod 13 is connected with the positioning hole 14, so that the anti-sliding block 11 can be located outside the side cover 2, which can increase the friction with the placement contact surface when the membrane box body 1 is transported, and at the same time, it can keep the membrane box body 1 in an upright state during loading and unloading, avoiding the risk of collision caused by lying down and inverted.

[0039] 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 snap-on diaphragm box of a diaphragm gas meter, comprising a diaphragm box body (1), a side cover (2) being arranged on the surface of the diaphragm box body (1), characterized in that: The surface of the side cover (2) is provided with a disassembly structure, and the disassembly structure comprises: A plug-in (3), a slot (4) is provided on the surface of the membrane box body (1), a clamp (5) is fixedly connected to the lower surface of the side cover (2), the membrane box body (1) is provided with a clamping slot (6), a connecting hole (7) is provided on the surface of the plug-in (3), a sealing plug (8) is threadedly connected to the inner wall of the connecting hole (7), a mounting groove (9) is provided on the surface of the membrane box body (1), and a spring (10) is fixedly connected to the inner wall of the mounting groove (9); The anti-sliding block (11) is slidably connected to the inner wall of the installation groove (9), the surface of the anti-sliding block (11) is provided with a groove (12), a connecting rod (13) is arranged inside the groove (12), the outer wall of the connecting rod (13) is threadedly connected with a positioning hole (14), and the surface of the membrane box body (1) is provided with a fixing hole (15).

2. The snap-on diaphragm box of a diaphragm gas meter according to claim 1, characterized in that: The surface of the plug-in (3) is provided with a stabilizing structure, the stabilizing structure comprising a collar (16), a first clamping block (17) is fixedly connected to the surface of the plug-in (3), and a second clamping block (18) is fixedly connected to the inner wall of the slot (4).

3. The snap-on diaphragm box of a diaphragm gas meter according to claim 1, characterized in that: The outer wall of the plug-in (3) is matched with the inner wall of the slot (4), and the inner wall of the card slot (6) is matched with the outer wall of the card member (5).

4. The snap-on diaphragm box of a diaphragm gas meter according to claim 1, characterized in that: One end of the spring (10) away from the inner wall of the installation groove (9) is fixedly connected to the outer wall of the anti-sliding block (11).

5. The snap-on diaphragm box of a diaphragm gas meter according to claim 1, characterized in that: The outer wall of the connecting rod (13) is threadedly connected to the inner wall of the anti-sliding block (11) on the side close to the groove (12), and the positioning hole (14) is opened on the outer wall of the sealing plug (8).

6. The snap-on diaphragm box of a diaphragm gas meter according to claim 1, characterized in that: The fixing hole (15) is located inside the groove (12), and the inner wall of the fixing hole (15) is threadedly connected to the outer wall of the connecting rod (13).

7. The snap-on diaphragm box of a diaphragm gas meter according to claim 2, characterized in that: The outer wall of the plug-in (3) is fixedly connected to the inner wall of the collar (16), and one end of the collar (16) away from the plug-in (3) is rotatably connected to the outer wall of the side cover (2).

8. The snap-on diaphragm box of a diaphragm gas meter according to claim 2, characterized in that: The outer wall of the first clamping block (17) is adapted to the outer wall of the second clamping block (18).

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