CN210790746U

CN210790746U - Special spanner for liquid seal water meter

Info

Publication number: CN210790746U
Application number: CN201921519860.0U
Authority: CN
Inventors: 欧晟
Original assignee: Fuzhou Zenner Water Meter Co ltd
Current assignee: Fuzhou Zenner Water Meter Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-06-19
Anticipated expiration: 2029-09-12

Abstract

A special spanner for a liquid seal water meter is composed of a circular ring and a handle, and is characterized in that a copper cover limiting ring is fixed on the 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 a small hole, the lower end of the copper cover limiting ring is 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. The utility model discloses an improve on current spanner basis, simple structure, it is little to prior art change, as long as processing out the screw hole in corresponding department, the installation copper sheathing spacing ring can, the copper sheathing spacing ring has restricted the decurrent removal of spanner completely, also has 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 is like this, the protruding axial displacement of ring all obtains the restriction on the spanner.

Description

Special spanner for liquid seal water meter

Technical Field

The utility model belongs to the spanner that the water gauge dismouting was used, especially liquid seal water gauge special spanner.

Background

At present, the liquid seal water gauge needs the on-site table analysis of tearing open, maintain because of various reasons, as shown in fig. 1, 2, the surface of liquid seal water gauge copper cover 5 is cylindrical, divide into first, the second floor by the upper surface downward order of copper cover, the diameter on second floor is greater than the first layer, second floor 52 has four draw-in grooves 521 to be used for carrying out the dismouting of copper cover internal thread with the wrench cooperation, first layer 51 is smooth cylinder, the external diameter is not more than the external diameter of draw-in groove 521 bottom surface, and the external diameter of the neck portion of flange lid 8 that is located its below with the copper cover complex also is less than the external diameter of draw-in groove 521 bottom surface, it is spacing to carry out the axial to the spanner to have the plane that is greater than the horizontal direction on. The current special spanner for dismounting is shown in fig. 3 and 4 and consists of a circular ring 6 and a handle 7, wherein four circular ring bulges 61 matched with a copper cover clamping groove are arranged on the inner ring of the circular ring 6, an interface of the handle is arranged on the outer ring surface of the circular ring, generally a stud or a screw hole, and is matched and connected with a screw hole or a stud on the handle, after the circular ring bulges of the spanner are embedded into the clamping groove 521, the circular ring bulges 61 are not limited in the axial direction, are easy to slide up and down, enter a first layer upwards and then slide out, and are blocked only when falling to the surface of a flange cover, the spanner loses the effect on the second layer of clamping groove under the two conditions, needs to be pressed in the clamping groove by assistance of one hand, then the handle is simultaneously operated by the other hand, the operation is inconvenient, and the dismounting force is weakened.

Disclosure of Invention

An object of the utility model is to provide a modular liquid seals spanner makes the liquid seal water gauge all can realize tearing the table, normal maintenance in any space.

The utility model discloses the scheme that adopts is a special spanner of liquid seal water gauge, comprises ring and handle, and its main points lie in, has the copper covering spacing ring at ring fixed surface, and the hole of copper covering spacing ring 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 covering first layer, and macroporous diameter is not less than the external diameter of copper covering first layer, the height of macroporous highly equal to first layer.

Because the water gauge is generally fixed in the below, pull the spanner during dismouting and can have decurrent effort naturally, the wrench is gliding downwards easily, and loses the effort to second floor draw-in groove, the utility model discloses an increase copper sheathing spacing ring on the ring surface, block the upper surface of copper sheathing by its step face, and prevent that the wrench 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, as long as processing out the screw hole in corresponding department, the installation copper sheathing spacing ring can, the copper sheathing spacing ring has restricted the decurrent removal of spanner completely, also has 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 is 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 structural diagram of embodiment 1 of the present invention

FIG. 6 is a schematic structural view of a copper shield retainer ring

FIG. 7 is a view showing the usage state of the present invention

Fig. 8 is a schematic structural diagram of embodiment 2 of the present invention

FIG. 9 is a view showing the state after the lower retainer ring of the copper shield is dislocated in accordance with embodiment 2

FIG. 10 is a state diagram of the use of example 2

Wherein: 1. the copper cover limiting ring 11 has small holes 12, large holes 13, an avoidance area 3, a copper cover lower limiting ring 31, a copper cover lower limiting ring protrusion 32, a sliding rod 5, a first layer 52, a second layer 521, a clamping groove 6, a circular ring 61, a circular ring protrusion 62, a sliding groove 7 and a handle 8 flange cover.

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 to 7, a special wrench for a liquid seal water meter is an improvement of the existing wrench for a liquid seal water meter, and is also provided with a ring 6 and a handle 7, except that a copper cover limiting ring 1 is fixed on the upper surface of the ring, and the copper cover limiting ring is fixed on the ring through a screw. The hole of copper cover spacing ring is the step type, the upper end is aperture 11, the lower extreme is macropore 12, the diameter of aperture is less than the external diameter of copper cover first layer 51, make the copper cover spacing ring can block at the copper cover upper surface, and can't move down, macroporous diameter is not less than the external diameter of copper cover first layer 51, macroporous height equals the height of first layer, the macropore is under the spacing of copper cover spacing ring in order to guarantee the spanner, the axial position of ring still is on the copper cover second floor, do not receive the influence of copper cover spacing ring. 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 and is larger than the semi-ring. 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.

Embodiment 2, as shown in fig. 8-10, a further improvement is made on the basis of embodiment 1, a copper cover lower limiting ring 3 is fixed on the other end face of the 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 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 copper cover lower limiting ring protrusion 31 similar to the ring protrusion is arranged on the inner ring of the copper cover lower limiting ring, the positions of the copper cover lower limiting ring protrusion and the copper 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 surface of the clamping groove of the second layer of the copper cover, the outer diameter is smaller than the outer diameter of the second layer, the general size is selected to be the same as that of the ring protrusion 61, a sliding groove 62 is arranged on the surface of the ring, the sliding rod 4 is fixed with the copper cover lower limiting ring, the lower limit ring of the copper cover is used for rotating the lower limit ring of the copper cover, so that the sliding rod moves in the sliding chute, and the two limit positions of the movement of the sliding rod in the sliding chute are respectively that the protrusion 31 of the lower limit ring of the copper cover is flush with and completely staggered with the circular protrusion 61. The rest of the composition which is not described is the same as that of example 1.

Claims

1. A special spanner for a liquid seal water meter is composed of a circular ring (6) and a handle (7), and is characterized in that a copper cover limiting ring (1) is fixed on the 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 a small hole, the lower end of the copper cover limiting ring is 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.

2. The special wrench for a liquid seal water meter recited in claim 1, wherein 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 annular protrusion and the slot of the copper shield.

3. The special wrench for a liquid seal water meter of claim 1, wherein the copper shield limiting ring is an unclosed ring larger than the half ring.

4. The special wrench for the liquid seal water meter according to claim 1, wherein the copper cover retainer ring is fixed to the ring by a screw.

5. The special spanner for the liquid seal water meter according to claim 1, wherein a copper cover lower limit ring (3) is fixed on the other end face of the ring, the inner hole of the copper cover lower limit ring is larger than the outer diameter of the second layer of the copper cover, the height of the copper cover lower limit ring 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 copper cover lower limit ring protrusion similar to the circular ring protrusion is arranged on the inner ring of the copper cover lower limit ring, the positions of the copper cover lower limit ring protrusion and the circular ring lower limit ring protrusion are the same, the inner diameter of the copper cover lower limit ring protrusion is larger than the outer diameter of the bottom surface of the clamping groove of the second layer of the copper cover and smaller than the outer diameter of the second layer, a sliding groove is arranged on the surface of the ring, the sliding rod.

6. The special wrench for the liquid seal water meter according to claim 5, wherein the outer surface of the lower limit ring of the copper cover is designed with symmetrical toggle protrusions (32).