CN213616477U

CN213616477U - Special tool for disassembling and assembling copper cover of liquid seal water meter

Info

Publication number: CN213616477U
Application number: CN202022067545.8U
Authority: CN
Inventors: 欧晟
Original assignee: Fuzhou Zenner Water Meter Co ltd
Current assignee: Fuzhou Zenner Water Meter Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-07-06
Anticipated expiration: 2030-09-21

Abstract

A special tool for disassembling and assembling a copper cover of a liquid seal water meter is characterized by comprising a circular ring and a ratchet wrench, wherein a square hole matched with a ratchet wrench fixing pin is processed on the upper surface of the circular ring. The utility model discloses an improve on current spanner basis, simple structure, it is little to prior art change, utilize ratchet spanner to replace ordinary handle, process out on the ring with ratchet spanner matched with interface, ratchet spanner single rotation angle only is 8 degrees, has reduced the demand to workspace, and on the other hand becomes workspace with the space on copper sheathing surface, has enlarged workspace, makes it can accomplish in less space and tear the table work open.

Description

Special tool for disassembling and assembling copper cover of liquid seal water meter

Technical Field

The utility model belongs to liquid seal water gauge special spanner especially can realize that the water gauge under the on-the-spot limit installation environment is maintained.

Background

The existing liquid seal water meter needs to be disassembled on site for analysis and maintenance for various reasons, as shown in fig. 1 and 2, the existing disassembling wrench is composed of a circular ring 6 and a handle 7 as shown in fig. 3, the inner ring of the circular ring 6 is provided with four circular ring protrusions 61 matched with copper cover clamping grooves, the outer ring surface of the circular ring is provided with a handle interface, generally a stud or a screw hole, which is matched and connected with a screw hole or a stud on the handle, the handle is longer and 53cm, the required disassembling space is larger than 1/4, the radius is 53cm sector, at least 90-degree operation space is needed, and many meter wells do not have large operation space. The existing dismounting spanner still has the shortcoming of easy breaking away from, as shown in fig. 1 and 2, it can be seen that the outer surface of the copper cover 5 of the liquid seal water meter is cylindrical, the upper surface of the copper cover is divided into a first layer and a second layer in a downward sequence, the diameter of the second layer is greater than that of the first layer, the second layer 52 is provided with four clamping grooves 521 for being matched with the spanner to carry out dismounting of the internal thread of the copper cover, the first layer 51 is a smooth cylindrical surface, the outer diameter is not greater than that of the bottom surface of the clamping grooves 521, the outer diameter of the neck of the flange cover 8 located below the copper cover in a matched mode is also smaller than that of the bottom surface of the clamping grooves 521 until the surface of the flange cover has a plane greater than that of the second. After the protruding embedding draw-in groove 521 of ring of spanner, because the protruding 61 of ring does not have spacingly in the axial, slide about easy, upwards get into first layer, then the roll-off, just blocked to the flange lid surface down, the spanner all loses the effect to second floor draw-in groove in these two kinds of condition, need press it in the draw-in groove with the assistance of one hand, then with another hand simultaneous operation handle dismouting copper sheathing, the operation is inconvenient, has still weakened the dismouting power.

Disclosure of Invention

The utility model aims to overcome the shortcoming that the required working space of present liquid seal water gauge copper sheathing dismouting wrench is big, provide a required working space and be little, make the liquid seal water gauge can realize tearing open the table in less space, the specialized tool of the liquid seal water gauge copper sheathing dismouting of normal maintenance.

The utility model discloses the scheme that adopts is a specialized tool of liquid seal water gauge copper sheathing dismouting, and its main points lie in, constitute by ring and ratchet spanner, have the square hole with ratchet spanner fixed pin matched with at ring upper surface processing.

The utility model discloses utilize ratchet spanner to replace ordinary handle, process out on the ring with ratchet spanner matched with interface, ratchet spanner single rotation angle only is 8 degrees, the demand to working space has been reduced, and because the connector with the spanner changes the ring upper surface into, make the ring top also can regard as the operating space of spanner, ratchet spanner's position can only be in the radial extension line of ring by present handle and improve to can overlap with the ring radius, even time ratchet spanner operating position can overlap with copper sheathing surface, become working space with the space on copper sheathing surface, working space has been enlarged, make it can accomplish in less space and tear open the table work.

The outer ring at the square hole is a convex tongue which is smoothly connected with the circular ring. Because the width of the circular ring is smaller, the local position of the square hole is particularly increased for ensuring the strength of the square hole.

The utility model discloses still do not have spacing improvement to the ring axial, have the copper sheathing spacing ring at ring fixed surface, the hole that the copper sheathing spacing ring was is the step type, and the upper end is the aperture, and the lower extreme is the macropore, and the diameter of aperture is less than the external diameter of copper sheathing first floor, and macroporous diameter is not less than the external diameter of copper sheathing first floor, and macroporous height equals the height of first floor.

Because the water gauge is generally fixed in the below, pull the spanner during dismouting and can have decurrent effort naturally, the spanner is gliding downwards easily, and loses the effort to the second floor, the utility model discloses an increase the copper sheathing spacing ring on the ring surface, block the upper surface of copper sheathing by its step face, and prevent that the spanner from gliding downwards.

The clearance between the large hole and the outer diameter of the first layer of the copper cover is smaller than the radial clearance between the circular ring protrusion and the copper cover clamping groove. Because a radial gap exists between the circular ring protrusion and the copper cover clamping groove, when the circular ring protrusion and the copper cover clamping groove rotate forcibly, the center of the wrench and the center of the copper cover generate deviation, so that the copper cover is pressed by the copper cover limiting ring on one side, and the axial movement capacity of the wrench is limited.

The copper cover limiting ring is an unclosed ring and is larger than the semi-ring. Facilitating weight reduction of the special tool or preventing interference with other parts.

The copper cover limiting ring is fixed on the circular ring through a screw. The screw is used for fixing conveniently and quickly.

The other end face of the ring is fixedly provided with a copper cover lower limiting ring, the inner hole of the copper cover lower limiting ring is larger than the outer diameter of the second layer of the copper cover, the height of the copper cover lower limiting ring is not larger than the height between the end face of the copper cover and the surface of the flange cover after the copper cover and the neck of the flange cover are screwed, the inner circle of the copper cover lower limiting ring is provided with a copper cover lower limiting ring protrusion similar to the circular ring protrusion, the positions of the copper cover lower limiting ring and the flange cover lower limiting ring are the same, the inner diameter of the copper cover lower limiting ring protrusion is larger than the outer diameter of the bottom face of the clamping groove of the second layer of the copper cover, the outer diameter of the second layer of the copper cover lower limiting ring is smaller than the outer diameter of the second layer.

The utility model discloses further increased spacing ring under the copper sheathing, spacing ring is protruding to align with the ring is protruding under at first the copper sheathing, passes by the copper sheathing draw-in groove, then moves and makes spacing ring and ring produce the displacement under the copper sheathing through the slide bar in the spout, and makes spacing ring protruding dislocation under the copper sheathing, receives the restriction of copper sheathing second floor external diameter and can not move outward in the axial to prevent that the spanner from sliding and deviating from the copper sheathing to the copper sheathing first floor.

The outer surface of the lower limit ring of the copper cover is provided with symmetrical poking bulges. The shifting of the lower limiting ring of the copper cover is convenient to operate by shifting the protrusion.

The utility model discloses an improve on current spanner basis, simple structure, it is little to prior art change, utilize ratchet spanner to replace ordinary handle, process out on the ring with ratchet spanner matched with interface, ratchet spanner single rotation angle only is 8 degrees, has reduced the demand to workspace, and on the other hand becomes workspace with the space on copper sheathing surface, has enlarged workspace, makes it can accomplish in less space and tear the table work open. The utility model discloses still increased the copper sheathing spacing ring, restricted the decurrent removal of spanner, also had the function of stopping to spanner rebound, the utility model discloses further increased spacing ring under the copper sheathing, from structural ascending removal of spanner of having restricted completely, no matter how hard the spanner like this, the protruding axial displacement of ring all obtains the restriction on the spanner.

Drawings

FIG. 1 is a schematic view of a copper cover of a liquid-tight water meter

FIG. 2 is a schematic view of the installation of the flange cover and the copper cover

FIG. 3 is a schematic view of a conventional wrench

FIG. 4 is a view showing a state of use of a conventional wrench

FIG. 5 is a schematic view of a ring according to embodiment 1 of the present invention

Fig. 6 is a schematic structural diagram of embodiment 2 of the present invention

FIG. 7 is a schematic structural view of the copper shield limiting ring of the present invention

Fig. 8 is a schematic structural diagram of embodiment 3 of the present invention

FIG. 9 is a view showing the state after the lower retainer ring of the copper shield is borrowed according to embodiment 3

FIG. 10 is a state diagram of the use of embodiment 3

FIG. 11 is a schematic view of a ratchet wrench

Wherein: 1. the copper cover limiting ring 11, the small hole 12, the large hole 13, the avoiding area 3, the copper cover lower limiting ring 31, the copper cover lower limiting ring protrusion 32, the sliding rod 5, the first layer 52, the second layer 521, the clamping groove 6, the circular ring 61, the circular ring protrusion 62, the sliding groove 63, the square hole 7 and the handle 8 are flanged and covered.

The specific implementation mode is as follows:

the embodiments illustrated herein will enable those skilled in the art to more fully understand the present invention, without limiting it in any way, when the present invention is described in detail below with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 5 and 11, a special tool for disassembling and assembling a copper cover of a liquid seal water meter is improved on the basis of a wrench of the existing liquid seal water meter, and comprises a ring 6 and a ratchet wrench, wherein the ratchet wrench is a standard component and purchased outside. The upper surface of the ring 6 is provided with a square hole 63, generally a through hole, which is matched with the fixed pin of the ratchet wrench, and the ring is internally provided with a ring protrusion 61. Because the width of the circular ring is smaller, in order to ensure the strength of the square hole, the local position of the square hole is particularly increased, and the outer ring at the square hole is a convex tongue which is smoothly connected with the circular ring. The other parts which are not described, such as the circular ring protrusion in the circular ring, etc. are the same as the prior art.

In embodiment 2, as shown in fig. 6 and 7, a copper shield retainer ring 1 is fixed to the upper surface of the ring, and the copper shield retainer ring is fixed to the ring by screws. The inner hole of the copper cover limiting ring is stepped, the upper end of the copper cover limiting ring is a small hole 11, the lower end of the copper cover limiting ring is a large hole 12, the diameter of the small hole is smaller than the outer diameter of the first layer 51 of the copper cover, the diameter of the large hole is not smaller than the outer diameter of the first layer 51 of the copper cover, and the height of the large hole is equal to the height of the first layer. The clearance between the large hole and the outer diameter of the first layer of the copper shield is smaller than the radial clearance between the circular ring protrusion 61 and the copper shield clamping groove. The copper cover limiting ring is an unclosed ring which is larger than the half ring and is abducted for the square hole 63, and the connecting surface of the small hole 11 and the large hole 12 is contacted with the upper surface of the copper cover when in use. The rest of the parts which are not described are the same as the prior art. The rest of the composition which is not described is the same as that of example 1.

Embodiment 3, as shown in fig. 8 to 10, a further improvement is made on the basis of embodiment 2, a lower copper cover limiting ring 3 is fixed on the lower end face of the ring, the inner hole of the lower copper cover limiting ring is larger than the outer diameter of the second copper cover layer, the height is not larger than the height between the lower end face of the copper cover and the surface of the flange cover after the copper cover is screwed with the neck of the flange cover, a lower copper cover limiting ring protrusion 31 similar to the ring protrusion is arranged on the inner ring of the lower copper cover limiting ring, the positions of the lower copper cover limiting ring protrusion and the lower copper cover limiting ring are the same, the inner diameter of the lower copper cover limiting ring protrusion is larger than the outer diameter of the bottom surface of the clamping groove of the second copper cover layer and smaller than the outer diameter of the second layer, a sliding groove 62 is arranged on the surface of the ring, a sliding rod 4 passes through the sliding groove to be fixed with the. The outer surface of the lower limiting ring of the copper cover is provided with symmetrical toggle bulges 32 which are used for rotating the lower limiting ring of the copper cover to enable the sliding rod to move in the sliding chute, and two limiting positions of the sliding rod moving in the sliding chute are that the lower limiting ring bulge 31 of the copper cover is flush with the circular bulge 61 and completely staggered.

Claims

1. A special tool for disassembling and assembling a copper cover of a liquid seal water meter is characterized by comprising a circular ring and a ratchet wrench, wherein a square hole matched with a fixing pin of the ratchet wrench is processed on the upper surface of the circular ring.

2. The special tool for disassembling and assembling the copper cover of the liquid seal water meter as claimed in claim 1, wherein the outer ring at the square hole is a convex tongue smoothly connected with a circular ring.

3. The special tool for disassembling and assembling the copper cover of the liquid seal water meter according to claim 1, wherein the copper cover limiting ring (1) is fixed on the upper surface of the circular ring, the inner hole of the copper cover limiting ring is stepped, the upper end of the copper cover limiting ring is provided with a small hole, the lower end of the copper cover limiting ring is provided with a large hole, the diameter of the small hole is smaller than the outer diameter of the first layer of the copper cover, the diameter of the large hole is not smaller than the outer diameter of the first layer of the copper cover, and the height of the large hole is equal.

4. The special tool for disassembling and assembling the copper cover of the liquid seal water meter as claimed in claim 3, wherein a clearance between the large hole and the outer diameter of the first layer of the copper cover is smaller than a radial clearance between the annular protrusion and the clamping groove of the copper cover.

5. The special tool for disassembling and assembling the copper cover of the liquid seal water meter according to claim 3, wherein the copper cover limiting ring is an unclosed ring which is larger than the half ring.

6. The special tool for disassembling and assembling the copper cover of the liquid seal water meter according to claim 3, wherein the copper cover limiting ring is fixed on the ring through a screw.

7. The special tool for disassembling and assembling the copper cover of the liquid seal water meter according to claim 3, wherein a lower copper cover limiting ring (3) is fixed on the lower end surface of the ring, the inner hole of the lower copper cover limiting ring is larger than the outer diameter of the second copper cover layer, the height of the lower copper cover limiting ring is not larger than the height between the lower end surface of the copper cover and the surface of the flange cover after the copper cover is screwed with the neck of the flange cover, a lower copper cover limiting ring protrusion similar to the ring protrusion is arranged on the inner ring of the lower copper cover limiting ring, the positions of the lower copper cover limiting ring protrusion and the lower copper cover limiting ring protrusion are the same, the inner diameter of the lower copper cover limiting ring protrusion is larger than the outer diameter of the bottom surface of the clamping groove of the second copper cover layer and smaller than the outer diameter of the second layer, a sliding groove is arranged on the surface of the ring, the sliding rod penetrates.

8. The special tool for disassembling and assembling the copper cover of the liquid seal water meter as claimed in claim 7, wherein the outer surface of the lower limit ring of the copper cover is designed with symmetrical toggle protrusions.