CN211576276U - Mechanical water meter shell - Google Patents

Abstract

The utility model relates to a machinery water meter case relates to the technical field of water gauge, and it includes the casing, the casing in be equipped with upper ring room and lower ring room, lower ring room and the intercommunication department level of fitting with a contraceptive ring room be equipped with the mount pad, the mount pad include mount ring and the holding ring that is connected with the mount ring, the holding ring with the mount ring concentric setting and the external diameter equal, the internal diameter of holding ring be greater than the internal diameter of mount ring, holding ring and mount ring become the mounting groove, the mounting groove be radius platform form. The utility model has the characteristics of sealed effectual.

Description

Mechanical water meter shell

Technical Field

The utility model belongs to the technical field of the water gauge technique and specifically relates to a machinery water gauge shell is related to.

Background

A water meter is a device for measuring the amount of water used, and is usually located at a user end of tap water, and the degree of the water meter is used as a basis for calculating water charges. The internal structure of the traditional water meter can be divided into a shell, a sleeve and an inner core from outside to inside. The housing is usually cast from pig iron or copper, and after exiting from the water inlet, the water flows out through the lower annular space in the housing, the lower ring chamber, the upper ring chamber above the lower ring chamber, and the water outlet.

The notice number is: CN205691185U discloses a leak-proof water meter shell, which comprises a water inlet, a lower ring chamber, an upper ring chamber and a water outlet which are communicated in sequence, wherein a communication part of the lower ring chamber and the upper ring chamber is horizontally provided with a retention rib, and the retention rib is used for installing a water meter metering device; and a water-stop sheet is hermetically arranged between the inner wall of the communication part of the lower ring chamber and the upper ring chamber and the retention rib.

The above prior art solutions have the following drawbacks: in the use, when water gauge metering device installed on the maintenance muscle, need place the sealing washer between water gauge metering device and maintenance muscle to reach good sealed effect, when placing the sealing washer on the maintenance muscle, the sealing washer misplaces easily at that time, thereby influences sealed effect.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, one of the purposes of the utility model is to provide a mechanical water meter case, it has good sealed effect.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a machinery water meter shell, includes the casing, the casing in be equipped with ring chamber and lower ring chamber, lower ring chamber and the intercommunication department level of fitting with a contraceptive ring chamber be equipped with the mount pad, the mount pad include mount ring and the holding ring that is connected with the mount ring, the holding ring with the mount ring set up with one heart and the external diameter equals, the internal diameter of holding ring be greater than the internal diameter of mount ring, holding ring and mount ring become the mounting groove, the mounting groove be radius platform form.

Through adopting above-mentioned technical scheme, because the mounting groove is radius platform form, the mounting groove is formed by holding ring and collar, therefore the inner wall of holding ring is the slope form, consequently when placing the sealing washer, the inner wall of holding ring can play the effect of direction to the sealing washer for when the sealing washer falls on the diapire of mounting groove (be the upper surface of collar), the phenomenon of dislocation can not take place, make to seal up the effect better after the installation is accomplished.

The present invention may be further configured in a preferred embodiment as: the mounting ring on still be equipped with the sealing ring, the sealing ring with the mounting ring concentric setting, the sealing ring all be located the mounting groove.

Through adopting above-mentioned technical scheme, accomplish the sealing washer installation after, can install water gauge metering device, accomplish the back when the installation of water gauge metering device, can play extruded effect to the sealing washer, consequently the existence of sealing ring makes the area of contact of sealing washer and collar bigger, also makes the deformation volume of sealing ring bigger simultaneously, because the sealing ring with the collar concentric setting, consequently can reach the sealed effect of multilayer, further strengthened sealed effect.

The present invention may be further configured in a preferred embodiment as: the shell body is also provided with a water outlet pipe communicated with the upper ring chamber, the water outlet pipe comprises a pressurizing cavity, and the inner diameter of the pressurizing cavity is gradually reduced along the direction from the inside to the outside of the shell body.

Through adopting above-mentioned technical scheme, consequently when using, can be effectual carry out the pressure boost to the rivers that flow out in following the water gauge for discharge's velocity of water accelerates in following the water gauge, consequently can effectively avoid tap to locate the less problem of effluent pressure to take place.

The present invention may be further configured in a preferred embodiment as: the pressurizing cavity comprises an upper cavity wall, a lower cavity wall and side walls positioned on two sides of the upper cavity wall and the lower cavity wall, the upper cavity wall and the lower cavity wall are parallel, and the distance between the two side walls is gradually reduced along the direction from the inside to the outside of the shell.

Through adopting above-mentioned technical scheme, consequently the radial cross-section of pressure boost chamber is long waist type, therefore the outlet pipe is more flat, practices thrift the space, also makes the area of contact between pressure boost chamber and the last ring chamber bigger simultaneously for the drainage effect is better.

The present invention may be further configured in a preferred embodiment as: the inner wall of the upper ring chamber comprises a flow guide wall, the flow guide wall is arc-surface-shaped, and the flow guide wall is connected with the side wall.

Through adopting above-mentioned technical scheme, consequently, the existence of water conservancy diversion wall makes rivers more steady when getting into the pressurized cavity, can effectively reduce the pressurized cavity and go up the pressure of ring chamber junction.

The present invention may be further configured in a preferred embodiment as: the side wall is arc surface.

By adopting the technical scheme, the arc-surface-shaped side wall enables the contact area of water in the pressurizing cavity and the pressurizing cavity to be larger, so that the pressure at the position of the side wall can be effectively reduced, and meanwhile, the pressure at the connecting position of the side wall, the upper cavity wall and the lower cavity wall can also be effectively reduced.

The present invention may be further configured in a preferred embodiment as: the shell is also provided with a supporting seat, and the supporting seat is formed by intersecting at least two supporting rods.

Through adopting above-mentioned technical scheme, consequently when the installation, two spinal branch vaulting poles contact with the water gauge mounting box, consequently can play good supporting effect to the casing, the effect of strengthening rib can also be played in the existence of bracing piece simultaneously for the bulk strength of casing is bigger.

The present invention may be further configured in a preferred embodiment as: the water outlet pipe is characterized in that one end of the water outlet pipe, which is connected with an external water pipe, is also provided with a sealing groove, and the sealing groove is annular.

Through adopting above-mentioned technical scheme, consequently outside water pipe when being connected with the outlet pipe, can place the sealing washer in the junction, consequently the existence of seal groove makes, and the sealing washer receives can partially be absorbed in the seal groove after the extrusion force, consequently makes the sealed effect to outside water pipe and outlet pipe department better.

To sum up, the utility model discloses a following at least one useful technological effect:

because the mounting groove is in the shape of an inverted frustum, the sealing ring is not easy to misplace when the sealing ring is placed, so that the sealing effect is better;

the existence of pressure boost chamber makes when rivers pass through pressure boost chamber, and the velocity of flow can be fast, consequently can effectively avoid the less problem of water pressure of tap department to take place.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic longitudinal sectional structure of the present invention.

Fig. 3 is a schematic view of the cross-sectional structure of the water outlet pipe of the present invention.

Fig. 4 is a schematic view of the structure of the water outlet pipe in longitudinal section.

Reference numerals: 1. a housing; 11. a lower ring chamber; 12. an upper ring chamber; 13. a flow guide wall; 2. a water outlet pipe; 21. a pressurizing cavity; 22. an upper chamber wall; 23. a lower chamber wall; 24. a side wall; 25. a sealing groove; 3. a supporting seat; 31. a support bar; 4. a mounting seat; 41. a mounting ring; 42. a positioning ring; 43. mounting grooves; 44. and (4) a sealing ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a mechanical water meter case, including casing 1, be equipped with in casing 1 and go up ring room 12 and lower ring room 11 down the intercommunication department level of ring room 11 and ring room 12 and be equipped with mount pad 4, mount pad 4 includes collar 41 and the holding ring 42 that is connected with collar 41, holding ring 42 and collar 41 integrated into one piece, holding ring 42 and collar 41 set up with one heart and the external diameter equals, the internal diameter of holding ring 42 is greater than the internal diameter of collar 41, holding ring 42 and collar 41 form mounting groove 43, mounting groove 43 is radius platform form. The mounting ring 41 is further provided with a sealing ring 44, the sealing ring 44 and the mounting ring 41 are arranged concentrically, and the sealing ring 44 is located in the mounting groove 43. The sealing ring 44 and the mounting ring 41 are integrally formed, the housing 1 is further provided with a support seat 3, and the support seat 3 is formed by intersecting at least two support rods 31.

Referring to fig. 2 and 3, the casing 1 is further provided with a water outlet pipe 2 communicated with the upper ring chamber 12, the water outlet pipe 2 comprises a pressurizing cavity 21, and the inner diameter of the pressurizing cavity 21 is gradually reduced along the direction from the inside of the casing 1 to the outside of the casing 1. One end of the water outlet pipe 2 connected with an external water pipe is also provided with a sealing groove 25, and the sealing groove 25 is annular.

Referring to fig. 2 and 4, the pressurizing chamber 21 includes an upper chamber wall 22, a lower chamber wall 23, and side walls 24 located on both sides of the upper chamber wall 22 and the lower chamber wall 23, and the side walls 24 are arc-shaped. The upper chamber wall 22 and the lower chamber wall 23 are parallel, and the distance between the two side walls 24 decreases gradually along the direction from the inside of the housing 1 to the outside of the housing 1. Referring to fig. 2 and 3, the inner wall of the upper ring chamber 12 includes a guide wall 13, the guide wall 13 is arc-shaped, and the guide wall 13 is connected to the side wall 24.

The implementation principle of the embodiment is as follows: when the installation, because mounting groove 43 is the radius platform form, therefore the inner wall of holding ring 42 is the slope form, when placing the sealing washer in mounting groove 43, the lateral wall 24 of holding ring 42 can play good guide effect to the sealing washer, consequently make the problem that can effectively avoid the sealing washer dislocation take place, make sealed effect better, the existence of supporting seat 3 also makes and can play good supporting effect to casing 1 simultaneously, the existence of pressure boost chamber 21 makes when rivers pass through pressure boost chamber 21, the velocity of flow can be fast, consequently can effectively avoid the less problem of water pressure of tap department to take place, simultaneously because lateral wall 24 and guiding wall 13 all are the cambered surface form, consequently can effectively reduce the pressure of pressure boost chamber 21 and upper ring room 12 junction and lateral wall 24 and upper chamber wall 22, lower chamber wall 23 junction. One end of the water outlet pipe 2 connected with the external water pipe is also provided with a sealing groove 25, so that when the water outlet pipe is connected with the external water pipe, a sealing ring between the external water pipe and the water outlet pipe 2 is partially sunk into the sealing groove 25 after being subjected to extrusion force, and the sealing effect of the joint is enhanced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a machinery water meter case, includes casing (1), casing (1) in be equipped with ring room (12) and lower ring room, (11) the intercommunication department level of lower ring room and ring room (12) be equipped with mount pad (4), its characterized in that: mount pad (4) including mount ring (41) and holding ring (42) that are connected with mount ring (41), holding ring (42) with mount ring (41) concentric setting and external diameter equal, the internal diameter of holding ring (42) be greater than the internal diameter of mount ring (41), holding ring (42) and mount ring (41) form mounting groove (43), mounting groove (43) be the round platform form.

2. A mechanical water meter case according to claim 1, wherein: the mounting ring (41) is further provided with a sealing ring (44), the sealing ring (44) and the mounting ring (41) are arranged concentrically, and the sealing ring (44) is located in the mounting groove (43).

3. A mechanical water meter case according to claim 1, wherein: the water outlet pipe (2) communicated with the upper ring chamber (12) is further arranged on the shell (1), the water outlet pipe (2) comprises a pressurizing cavity (21), and the inner diameter of the pressurizing cavity (21) is gradually reduced in the outer direction of the shell (1) along the inside of the shell (1).

4. A mechanical water meter case according to claim 3, wherein: the supercharging cavity (21) comprises an upper cavity wall (22), a lower cavity wall (23) and side walls (24) positioned on two sides of the upper cavity wall (22) and the lower cavity wall (23), the upper cavity wall (22) is parallel to the lower cavity wall (23), and the distance between the two side walls (24) is gradually reduced towards the outer direction of the shell (1) along the inside of the shell (1).

5. A mechanical water meter case according to claim 4, wherein: the inner wall of the upper ring chamber (12) comprises a flow guide wall (13), the flow guide wall (13) is arc-surface-shaped, and the flow guide wall (13) is connected with the side wall (24).

6. A mechanical water meter case according to claim 4, wherein: the side wall (24) is arc-shaped.

7. A mechanical water meter case according to claim 1, wherein: the shell (1) is further provided with a supporting seat (3), and the supporting seat (3) is formed by crossing at least two supporting rods (31).

8. A mechanical water meter case according to claim 3, wherein: the water outlet pipe is characterized in that one end of the water outlet pipe (2) connected with an external water pipe is further provided with a sealing groove (25), and the sealing groove (25) is annular.

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