CN218765447U

CN218765447U - Water meter sealing structure

Info

Publication number: CN218765447U
Application number: CN202222881514.5U
Authority: CN
Inventors: 韩树屏; 李光银; 冯龙飞; 李旻旻
Original assignee: Lianyungang Lianli Forster Watch Co ltd
Current assignee: Lianyungang Lianli Forster Watch Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-03-28
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a water gauge seal structure, junction between gear box and the impeller is equipped with seal assembly, seal assembly includes the bearing, shrouding and lower shrouding on the top of bearing and bottom difference fixedly connected with, the sealing washer has been cup jointed in the inner chamber activity of bearing, the bearing comprises the outer steel ring of interior outer lane, interior steel ring and the ball that sets up between outer steel ring and interior steel ring, the sealing washer coincide each other with the inner chamber of interior steel ring, and the parallel and level each other to the activity cup joints the surface at the impeller, the fixed cup joint of outer steel ring is in gear box's bottom, and parallel and level each other, the utility model relates to a water gauge technical field. This water gauge seal structure, the solution makes the impeller can not appear the rotational friction with the gear box to avoid both can appear small gap, lead to the problem of intaking.

Description

Water meter sealing structure

Technical Field

The utility model relates to a water gauge technical field specifically is a water gauge seal structure.

Background

Water meters, which are meters for measuring water flow, mostly measure the accumulated flow of water, and are generally classified into a positive displacement water meter and a velocity water meter. The internal structure of the traditional water meter can be divided into a shell, a sleeve and an inner core from outside to inside, and a metering mechanism in the inner core of the traditional water meter consists of a gear box, an impeller box and the like, which play a key role in the metering performance and the durability of the water meter, but because one end of the impeller passes through the bottom of the gear box and is meshed with an internal gear, a hole through which the impeller can pass is formed at the bottom of the gear box, the surface of the impeller and the inner wall of the hole are mutually attached and rotated, but because the connection between the impeller and the inner wall of the hole is not sealed, the impeller can rotate in the hole under the impact of water flow, so that a gear set of the gear box is driven to rotate, the surface of the impeller and the inner wall of the hole form rotating friction for a long time, the diameter of the inner wall of the hole is increased or the surface of the impeller is reduced, a micro gap is formed between the impeller and the impeller, water can easily enter the gear box along with the gap, and the water quality problem caused by the water entering is observed.

For example, patent application No. CN201920874894.5, specifically is a water meter mounting sealing structure, its structure passes through the effect of transparent vacuum sealing layer, the cover liner, transparent glass, O-shaped sealing ring, the annular groove, annular lug and waterproof sealing glue layer, make this structure possess the advantage that seal structure variety and sealing effect are good, it is single to have solved current water meter to have a seal structure, sealing effect is poor, the problem of inconvenience is brought for people to use, the device's impeller surface sets up the water-stop sheet, but also insert between impeller and the counter (being equivalent to the gear box) and be connected, along with the impeller rotates, its surface can produce rotational friction simultaneously with between water-stop sheet and the counter, along with the lapse of time, because of the degree of laminating between the rotational friction can reduce, thereby lead to appear the gap between, make its problem of intaking easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a water gauge seal structure, solved because junction between the inner wall in impeller and hole does not have sealed setting, consequently under the impact of rivers, the impeller can rotate in the hole, thereby the gear train that drives the gear box rotates, form rotational friction between the inner wall along with long-time rotating impeller surface and hole, thereby make the inner wall increase in hole or impeller surface diameter diminish, lead to appearing small gap between the two, consequently make water enter into the gear box along with the gap easily, thereby see the water quality of appearing in the gear box in the water gauge, lead to the problem of getting into.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a water gauge seal structure, includes that watchcase and screw thread cup joint the shroud on watchcase surface, and connects the enclosing cover on shroud surface, the inner chamber of shroud is provided with metering mechanism, metering mechanism including filter screen and the gear box that is located the watchcase inner chamber, rotate cup joint the impeller of gear box bottom and the impeller box that the activity cup jointed on gear box surface to and set up sealing member and the glass piece in gear box top, the junction between gear box and the impeller is equipped with seal assembly.

The sealing assembly comprises a bearing, the top and the bottom of the bearing are respectively and fixedly connected with an upper sealing plate and a lower sealing plate, and a sealing ring is movably sleeved in an inner cavity of the bearing.

The bearing is composed of an outer steel ring, an inner steel ring and balls, wherein the outer steel ring and the inner steel ring are arranged on the inner ring and the outer ring, and the balls are arranged between the outer steel ring and the inner steel ring.

The inner chamber of sealing washer and inner steel ring coincide each other, and the parallel and level each other to the activity cup joints the surface at the impeller, the fixed cup joint in the bottom of gear box of outer steel ring, and parallel and level each other.

Preferably, the port of the cover is smaller than the diameter of the glass sheet.

Preferably, the outer cover is rotatably connected by a rotating pin.

Preferably, the surface of the watchcase is provided with a water inlet and a water outlet, and is communicated with the inner cavity of the watchcase.

Preferably, the gear box is movably sleeved in the inner cavity of the watch case and abuts against the top of the filter screen, and the impeller box is located in the inner cavity of the filter screen.

Preferably, the sealing element and the glass sheet are sequentially positioned in the inner cavity of the cover and abut against the surface of the gear box.

Advantageous effects

The utility model provides a water gauge seal structure. Compared with the prior art, the method has the following beneficial effects:

1. this water meter sealing structure, when rotating through the impeller, because the fixed bottom at the impeller of cup jointing of outer steel ring, and the sealing washer is in between the inner steel ring among impeller and the seal assembly, the inner steel ring carries out the rotation through the ball can make, therefore during the impeller rotates, can drive surface seal circle and inner steel ring and rotate together, and lower shrouding and last shrouding are sealed up the clearance between inner steel ring and the outer steel ring, make seal assembly also can appear intaking, consequently, solve and make the impeller can not appear the running friction with the gear box, thereby avoid both can appear small gap, lead to the problem of intaking.

2. This water gauge seal structure through because the sealing washer also can rotate along with the impeller, consequently can not have the wearing and tearing that cause the sealing washer rotation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention showing the structure thereof;

FIG. 3 is a schematic view of the gear box and the impeller of the present invention;

fig. 4 is a partial enlarged view of a portion a in the structure diagram of the present invention 3;

FIG. 5 is a schematic view of the structural seal assembly of the present invention;

fig. 6 is a view for separating the structural seal assembly of the present invention.

In the figure: 1. a cover; 2. an outer cover; 3. a metering mechanism; 31. a filter screen; 32. a gear box; 33. an impeller; 34. a seal assembly; 341. a bearing; 3411. an outer steel ring; 3412. an inner steel ring; 3413. a ball bearing; 342. a lower sealing plate; 343. an upper sealing plate; 344. a seal ring; 35. a glass sheet; 36. an impeller case; 37. a seal member; 4. a watch case.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a water meter sealing structure comprises a meter shell 4 and a cover 1 which is sleeved on the surface of the meter shell 4 in a threaded manner, and is connected with an outer cover 2 on the surface of the cover 1, a metering mechanism 3 is arranged in an inner cavity of the cover 1, the metering mechanism 3 comprises a filter screen 31 and a gear box 32 which are positioned in the inner cavity of the meter shell 4, an impeller 33 which is sleeved on the bottom of the gear box 32 in a rotating manner, an impeller box 36 which is movably sleeved on the surface of the gear box 32, a sealing piece 37 and a glass sheet 35 which are arranged above the gear box 32, the gear box 32 is movably sleeved on the inner cavity of the meter shell 4 and is abutted against the top of the filter screen 31, the impeller box 36 is positioned in the inner cavity of the filter screen 31, the sealing piece 37 and the glass sheet 35 are sequentially positioned in the inner cavity of the cover 1 and are abutted against the surface of the gear box 32, and a sealing component 34 is arranged at the joint between the gear box 32 and the impeller 33.

Furthermore, the end of cover 1 is smaller than the diameter of glass plate 35, so that cover 1, when screwed onto case 4, secures glass plate 35 and seal 37 to the end of the internal cavity of cover 2.

Further, the outer cover 2 is rotatably connected through a rotating pin, and the outer cover 2 is used for protection.

Furthermore, the surface of the watchcase 4 is provided with a water inlet and a water outlet, and is communicated with the inner cavity of the watchcase 4.

Referring to fig. 5-6, the sealing assembly 34 includes a bearing 341, an upper sealing plate 343 and a lower sealing plate 342 are fixedly connected to the top and the bottom of the bearing 341, respectively, and a sealing ring 344 is movably sleeved in an inner cavity of the bearing 341.

Preferably, the bearing 341 is composed of an outer steel ring 3411, an inner steel ring 3412 and balls 3413 arranged between the outer steel ring 3411 and the inner steel ring 3412, the sealing ring 344 can be fastened on the impeller 33 through the sealing assembly 34, and the lower sealing plate 342 and the upper sealing plate 343 seal the sealing assembly 34, so as to seal between the impeller 33 and the gear box 32 and prevent water leakage.

The inner cavities of the sealing ring 344 and the inner steel ring 3412 are matched with each other and are flush with each other, and are movably sleeved on the surface of the impeller 33, and the outer steel ring 3411 is fixedly sleeved on the bottom of the gear box 32 and is flush with each other.

According to the working principle of the water meter, firstly, a water inlet and a water outlet of the meter shell 4 are connected to a water pipe, then the water inlet starts to feed water into the meter shell 4, impurities in the water are filtered through the filter screen 31, the water can enter the impeller box 36, the impeller 33 is pushed to rotate, so that one end of the impeller 33 and the gear set in the inner cavity of the gear box 32 rotate, and the water consumption is displayed.

When the sealing assembly works, when the impeller 33 rotates, because the outer steel ring 3411 is fixedly sleeved at the bottom of the impeller 33, the sealing ring 344 is positioned between the impeller 33 and the inner steel ring 3412 in the sealing assembly 34, and the inner steel ring 3412 can rotate through the balls 3413, when the impeller 33 rotates, the surface sealing ring 344 and the inner steel ring 3412 can be driven to rotate together, the lower sealing plate 342 and the upper sealing plate 343 seal a gap between the inner steel ring 3412 and the outer steel ring 3411, so that water can enter the sealing assembly 34, and therefore the problem that the impeller 33 cannot rotate and rub with the gear box 32 is solved, and therefore the problem that small gaps can occur between the impeller 33 and the gear box and water enters the water is avoided.

Further, since the seal ring 344 also rotates with the impeller 33, there is no wear on the rotation of the seal ring 344.

And those not described in detail in this specification are well within the skill of those in the art.

Claims

1. The utility model provides a water gauge seal structure, includes that watchcase (4) and screw thread cup joint shroud (1) on watchcase (4) surface, and connect enclosing cover (2) on shroud (1) surface, the inner chamber of shroud (1) is provided with metering mechanism (3), metering mechanism (3) are including filter screen (31) and gear box (32) that are located watchcase (4) inner chamber, rotate impeller (33) and the activity of cup jointing at gear box (32) bottom and cup joint impeller box (36) on gear box (32) surface to and set up sealing member (37) and glass piece (35) above gear box (32), its characterized in that: a sealing assembly (34) is arranged at the joint between the gear box (32) and the impeller (33);

the sealing assembly (34) comprises a bearing (341), the top and the bottom of the bearing (341) are respectively and fixedly connected with an upper sealing plate (343) and a lower sealing plate (342), and a sealing ring (344) is movably sleeved in an inner cavity of the bearing (341);

the bearing (341) consists of an outer steel ring (3411) of an inner ring and an outer ring, an inner steel ring (3412) and balls (3413) arranged between the outer steel ring (3411) and the inner steel ring (3412);

the inner cavities of the sealing ring (344) and the inner steel ring (3412) are matched with each other and are parallel and level with each other, the sealing ring is movably sleeved on the surface of the impeller (33), and the outer steel ring (3411) is fixedly sleeved at the bottom of the gear box (32) and is parallel and level with each other.

2. A water meter sealing structure according to claim 1, wherein: the end opening of the cover cap (1) is smaller than the diameter of the glass sheet (35).

3. A water meter sealing structure according to claim 1, wherein: the outer cover (2) is rotatably connected through a rotating pin.

4. A water meter sealing structure according to claim 1, wherein: the surface of the watchcase (4) is provided with a water inlet and a water outlet which are communicated with the inner cavity of the watchcase (4).

5. A water meter sealing structure according to claim 1, wherein: the gear box (32) is movably sleeved in the inner cavity of the shell (4) and is abutted against the top of the filter screen (31), and the impeller box (36) is positioned in the inner cavity of the filter screen (31).

6. A water meter sealing structure according to claim 1, wherein: the sealing element (37) and the glass sheet (35) are sequentially positioned in the inner cavity of the cover cap (1) and abut against the surface of the gear box (32).