WO2021068862A1

WO2021068862A1 - Flow meter for use in manifold

Info

Publication number: WO2021068862A1
Application number: PCT/CN2020/119840
Authority: WO
Inventors: 王林近; 肖小勇
Original assignee: 浙江鑫帆暖通智控股份有限公司
Priority date: 2019-10-12
Filing date: 2020-10-07
Publication date: 2021-04-15
Also published as: CN210623767U

Abstract

A flow meter for use in a manifold comprises a connection base (1), a housing (2), a flow indicator rod (3), and a spring (4). A flow graduation scale (5) is provided on the housing (2). The flow indicator rod (3) is disposed in the housing (2), the spring (4) is sleeved on the flow indicator rod (3), and an indicator block (6) is disposed on the flow indicator rod (3). The housing (2) axially passes through the connection base (1), and is in threaded connection with the connection base (1). A press plate (7) is fixedly connected to a bottom end of the housing (2). A bottom end of the flow indicator rod (3) axially penetrates the press plate (7), and is fixedly connected to a flow disc (8). The spring (4) provides an elastic force, so that the flow indicator rod (3) always has a tendency to move toward the top of the housing (2). A handwheel (9) is sleeved on the housing (2), and is circumferentially positioned with respect to the housing (2). The handwheel (9) has a window exposing the flow graduation scale (5).

Description

Flow meter for water separator

Technical field

The utility model belongs to the technical field of valve manufacturing, and relates to a water separator accessory, in particular to a flow meter for a water separator.

Background technique

The water separator and water collector are the water distribution and water collection devices used to connect the supply and return water of various heating pipes in the water system. According to the incoming and outgoing water, it is a water separator and a water collector, so it is called a manifold or a water collector, commonly known as a water separator.

In order to facilitate the observation and adjustment of the flow, people set up a flow meter on the water divider. For example, Chinese patent literature discloses a copper tube flow meter water divider [application number: 201820941358.8; authorization announcement number: CN208364861U], which includes copper There are several flowmeters installed on the water distribution pipe. The flowmeter includes a mounting seat threadedly connected with the water distribution pipe and an adjusting seat threadedly connected with the mounting seat. The mounting seat is provided with a water inlet hole located in the water distribution pipe to adjust The seat is provided with a water hole connected to the water inlet in the circumferential direction, and the outer walls of the adjusting seat on both sides of the water hole are fixedly connected with a sealing ring sealed to the inner wall of the mounting seat. The outer end of the adjusting seat is threadedly connected with a shell, and the shell has a flow rate. Marking, the housing is provided with a flow rod, the top of the flow rod is in contact with the inner wall of the top of the housing, and a pressure cap is fixedly connected to the top of the flow rod. The pressure cap and the adjusting seat are provided with elastic force to keep the top of the flow rod in contact with The spring of the housing trend, the adjusting seat is located on the outer wall of the lower side of the water hole to form a diversion sleeve in the water distribution pipe. The bottom end of the flow rod has a flange and is located in the diversion sleeve. The water distribution pipe has a one-to-one correspondence with the flowmeter. The water outlet pipe protruding from the water distribution pipe, the water distribution pipe and the water outlet connection pipe are an integrated structure, the mounting seat extends to the inner end of the water outlet pipe, and the bottom end of the mounting seat is embedded with a cylindrically projecting sealing gasket, the sealing gasket faces The port of the outlet nozzle is flared and the port is sealed at the inner end of the outlet nozzle, the inner wall of the diversion sleeve is tapered, and the bottom end of the diversion sleeve with a large inner diameter extends into the outlet nozzle.

The above-mentioned copper pipe flowmeter water divider can observe the water flow rate and has high control accuracy, but the flowmeter has a large volume. When you need to adjust the flow rate, you need to remove the lock cap, and then use needle-nose pliers or a vise or a wrench. Clamp the adjustment seat, turn the adjustment seat to change the axial position of the adjustment seat. Here, because the distance between the flow meters on the water separator is not large, the tool is not easy to hold the adjustment seat, and the operation is not convenient. The adjustment seat is axial The displacement causes the opening gap of the water inlet to change, thereby adjusting the flow rate. After adjusting the flow rate, the lock cap needs to be re-threaded to the adjusting seat, which is inconvenient to operate, and the adjustment seat is driven to rotate during the tightening process of the lock cap, which affects the flow rate. The adjustment accuracy.

Summary of the invention

The purpose of the utility model is to solve the above-mentioned problems in the prior art and provide a flow meter for a water separator with compact structure, small volume, convenient flow adjustment and high adjustment accuracy.

The purpose of the utility model can be achieved by the following technical solutions: a flow meter for a water separator, comprising a connecting seat, a housing, a flow indicator rod and a spring, the housing is provided with a flow scale, and the flow indicator The rod is located in the housing and the spring is sleeved on the flow rod. The flow indicator rod has an indicator block. It is characterized in that the housing passes through the connecting seat axially and the housing is threadedly connected to the connecting seat. The bottom end of the housing is fixedly connected with a pressure plate, the bottom end of the flow indicating rod axially penetrates the pressure plate and the bottom end of the flow indicating rod is fixedly connected with a flow plate, and the spring provides elastic force so that the flow indicating rod always has the direction to the housing With the tendency of top displacement, the casing is sheathed with a hand wheel and the hand wheel is positioned circumferentially with the casing, and the hand wheel has a window exposing the flow scale.

In the above-mentioned flow meter for a water separator, the top of the housing has a block-shaped positioning block, and the hand wheel has a positioning hole for the positioning block to pass through.

In the above-mentioned flow meter for a water separator, the hand wheel includes a top ring and a bottom ring that are both ring-shaped, the top ring has a positioning hole in the middle, and the top ring and the bottom ring are symmetrically arranged by two pieces The connecting ribs are connected into one body.

In the above-mentioned flow meter for a water trap, the top of the connecting seat has an axially extending extension, the inner wall of the extension has an internal thread for the housing to be threaded, and the outer wall of the extension is a tapered surface, The inner wall of the bottom ring is a tapered surface that matches the tapered surface.

In the above-mentioned flow meter for a water separator, the outer wall of the bottom end of the housing has a plurality of annular grooves, the pressure plate has a connecting part that is cylindrical and covers the outer wall of the bottom end of the housing, and the connecting part The inner wall has a radially protruding convex ring embedded in each annular groove. Insert the bottom end of the shell into the connecting part so that the convex ring and the annular groove are matched, and the shell and the pressure plate are connected conveniently and firmly.

In the above-mentioned flow meter for a water trap, the top surface of the pressure plate is embedded with a gasket sealed at the bottom end of the housing. The sealing gasket makes the bottom end of the shell and the pressure plate have good sealing performance, and when the shell and the pressure plate are assembled, it plays a role of buffering and damping, avoiding the damage of the bottom end of the shell, and improving the yield.

In the above-mentioned flow meter for a water separator, the bottom end of the pressure plate has an axially extending reduced diameter section 1 and a reduced diameter section two, and the reduced diameter section two is located below the reduced diameter section 1. The outer diameter of the pressure plate is smaller than the outer diameter of the pressure plate and the outer diameter of the reduced diameter section one is greater than the outer diameter of the reduced diameter section two. The outer wall of the reduced diameter section 1 transitions to the reduced diameter section two through a tapered surface. The outer diameter is larger than the outer diameter of the reduced diameter section two. In this way, the pressure plate will not cause interference, and the reduced diameter section 1, the tapered surface and the reduced diameter section two play the role of drainage, so that the sensitivity of the flow plate is good. The flow plate is impacted by the water flow to drive the flow indicator rod to move downward in the axial direction.

In the above-mentioned flow meter for a water trap, the outer wall of the connecting seat is embedded with a sealing ring one, the bottom end of the pressure plate is embedded with a sealing ring two, and the housing is embedded with at least two sealing rings that are connected to the The sealing ring on the inner wall of the seat III. Sealing ring one guarantees the sealing performance between the connecting seat and the manifold, sealing ring two guarantees the sealing performance of the pressure plate and the valve seat at the outlet end of the diverter, and sealing ring three guarantees the sealing performance between the housing and the connecting seat. , Good sealing performance everywhere, high flow adjustment accuracy.

In the above-mentioned flow meter for a water separator, the indicator block is located on the top of the flow indicator rod and the two are connected as a whole. The middle of the flow indicator rod has a shoulder, and the top of the spring abuts against the shoulder. The bottom end is against the pressure plate. In this way, it is convenient to manufacture, and the spring will not block the line of sight and affect the observation, which is convenient for flow adjustment.

Compared with the prior art, the flow meter for the water separator has a compact structure, a small volume, convenient operation, convenient flow adjustment, and high adjustment accuracy.

Description of the drawings

Fig. 1 is a three-dimensional structure diagram of the flow meter for the water trap.

Figure 2 is a diagram of a state of use of the flow meter for the water trap.

Fig. 3 is a cross-sectional view of the structure of the flow meter for the water trap.

In the figure, 1. Connecting seat; 11. Extension; 2. Housing; 21. Positioning block; 3. Flow indicator rod; 31. Stop shoulder; 4. Spring; 5. Flow scale; 6. Indicator block; 7. Pressure plate; 71, connecting part; 72, convex ring; 73, reduced diameter section one; 74, reduced diameter section two; 8, flow plate; 9, hand wheel; 91, top ring; 92, bottom ring; 93, connecting rib ; 10. Sealing pad; 12. Sealing ring one; 13. Sealing ring two; 14. Sealing ring three.

Detailed ways

The following are specific embodiments of the present utility model combined with the accompanying drawings to further describe the technical solution of the present utility model, but the present utility model is not limited to these embodiments.

As shown in Figure 1 and Figure 3, the flow meter for the water trap includes a connecting seat 1, a casing 2, a flow indicating rod 3 and a spring 4. The casing 2 is a transparent plastic tube or a glass tube, and the casing 2 is provided with a flow rate Scale 5. The flow indicating rod 3 is located in the housing 2 and the spring 4 is sleeved on the flow rod. The flow indicating rod 3 has an indicating block 6 which is located on the top of the flow indicating rod 3 and the two are connected together. The flow indicating rod 3 has a shoulder 31 in the middle, the top end of the spring 4 abuts against the shoulder 31, the bottom end of the spring 4 abuts against the pressure plate 7, the housing 2 axially penetrates the connecting seat 1, and the housing 2 is threadedly connected with the connecting seat 1. 2 A pressure plate 7 is fixedly connected to the bottom end, the bottom end of the flow indicating rod 3 axially penetrates the pressure plate 7 and the bottom end of the flow indicating rod 3 is fixedly connected to a flow plate 8, and the spring 4 provides elastic force so that the flow indicating rod 3 always has the direction of the housing 2 The tendency of top displacement, the casing 2 is covered with a hand wheel 9 and the hand wheel 9 is positioned circumferentially with the casing 2, and the hand wheel 9 has a window exposing the flow scale 5.

The flow meter for this water separator eliminates the previous adjusting seat and lock cap, shortens the axial size, reduces the volume, and has a compact structure; in the flow meter for this water separator, the connecting seat 1 is connected with the water separator, and the pressure plate 7 is used To close the valve seat of the water outlet of the water separator, when the flow needs to be adjusted, no other tools are needed. Turn the hand wheel 9, which drives the housing 2 to rotate, and the housing 2 axially shifts to drive the pressure plate 7 to move closer to or away from the water separator. The valve seat of the water outlet adjusts the opening degree of the water inlet and adjusts the flow rate. The flow rate adjustment is convenient and quick. The flow of water flowing in between the pressure plate 7 and the valve seat of the water trap outlet acts on the flow plate 8, and the flow rate The disc 8 and the flow indicator rod 3 overcome the elastic force of the spring 4 to move downwards in the axial direction. The horizontal position of the indicator block 6 on the flow indicator rod 3 corresponds to the value on the flow scale 5, which means that the flow meter enters the substation through the flowmeter. The water tank corresponds to the water flow in the water outlet; after adjusting the flow, just loosen the hand wheel 9 without other operations, and the housing 2 will not rotate again, ensuring the adjustment accuracy.

In further detail, the top of the housing 2 has a block-shaped positioning block 21, and the hand wheel 9 has a positioning hole for the positioning block 21 to pass through. The hand wheel 9 includes a top ring 91 and a bottom ring 92 that are both ring-shaped. The top ring 91 has a positioning hole in the middle, and the top ring 91 and the bottom ring 92 are connected into one body by two symmetrically arranged connecting ribs 93. In this way, the hand wheel 9 has a simple structure and is convenient to manufacture. The two connecting ribs 93 will not block the flow scale 5, that is, both sides of the two connecting ribs 93 are reserved windows for the flow scale 5 to be exposed. The positioning block 21 and the positioning block 21 make the structure simple and realize the circumferential positioning of the hand wheel 9 and the housing 2. In use, as shown in Figure 2, the hand wheel 9 can be removed in order to avoid interference. Afterwards, hold the hand wheel 9 so that the positioning block 21 can pass through the positioning hole. Turning the hand wheel 9 can drive the housing 2 to rotate and adjust the flow rate, which is easy to apply force and has good controllability. After the flow rate is adjusted, the hand wheel 9 can be set again. Outside the housing 2, or directly take the hand wheel 9 away to prevent others from misadjusting the flow.

In order to have a good sealing performance and a cushioning effect, the top surface of the pressure plate 7 is embedded with a gasket 10 sealed at the bottom end of the housing 2; in order to avoid interference and affect the adjustment accuracy, the bottom end of the pressure plate 7 has an axial expansion contraction. Diameter section one 73 and reduced diameter section two 74 and reduced diameter section two 74 are located below reduced diameter section one 73, the outer diameter of reduced diameter section one 73 is smaller than the outer diameter of the pressure plate 7 and the outer diameter of reduced diameter section 73 is greater than the reduced diameter section The outer diameter of section two 74, the outer wall of the reduced diameter section 73 transitions to the reduced diameter section 74 through the tapered surface, the outer diameter of the flow plate 8 is greater than the outer diameter of the reduced diameter section 74; for good sealing, the outer wall of the connecting seat 1 A sealing ring 12 is embedded, the bottom end of the pressing plate 7 is embedded with a sealing ring two 13, and the housing 2 is embedded with two sealing rings three 14 that are sealed on the inner wall of the connecting seat 1; for the convenience and firmness of the connection, the bottom of the housing 2 The outer wall of the end has two annular grooves, the pressure plate 7 has a connecting portion 71 that is cylindrical and covers the outer wall of the bottom end of the housing 2, and the inner wall of the connecting portion 71 has a radially protruding convex ring embedded in each annular groove 72.

The top of the connecting seat 1 has an axially extending extension 11, the inner wall of the extension 11 has an internal thread for the housing 2 to be threaded, the outer wall of the extension 11 is a tapered surface, and the inner wall of the bottom ring 92 is a tapered matching the tapered surface surface. The extension 11 ensures the flow adjustment range, so that the other inner walls of the connecting seat 1 have sufficient guiding length, so that the axial displacement of the housing 2 is stable when the housing 2 is rotated, and the adjustment accuracy is high. The ring 92 is sleeved outside the extension portion 11, and the tapered surface and the tapered surface are matched, so that even if the handwheel 9 is subjected to a certain impact during transportation or use, it is not easy to fall off from the housing 2.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art. The specific embodiments described in this article are merely examples to illustrate the spirit of the present utility model. Those skilled in the technical field of the present utility model can make various modifications or additions to the specific embodiments described or substitute similar methods, but they will not deviate from the spirit of the present utility model or surpass the appended claims. The defined range.

Claims

A flow meter for a water separator, comprising a connecting seat (1), a casing (2), a flow indicating rod (3) and a spring (4), the casing (2) is provided with a flow scale (5), The flow indicating rod (3) is located in the housing (2) and the spring (4) is sleeved on the flow rod, and the flow indicating rod (3) is provided with an indicating block (6), which is characterized in that the The housing (2) axially penetrates the connecting seat (1) and the housing (2) is threadedly connected with the connecting seat (1), the bottom end of the housing (2) is fixedly connected with a pressure plate (7), the The bottom end of the flow indicating rod (3) axially penetrates the pressure plate (7) and the bottom end of the flow indicating rod (3) is fixedly connected with a flow disc (8). The spring (4) provides elastic force to make the flow indicating rod ( 3) There is always a tendency to shift to the top of the housing (2), the housing (2) is sheathed with a hand wheel (9) and the hand wheel (9) and the housing (2) are positioned circumferentially, the hand The wheel (9) has a window exposing the flow scale (5).
The flow meter for a water separator according to claim 1, wherein the top of the housing (2) has a block-shaped positioning block (21), and the hand wheel (9) has a positioning block (21) for positioning The positioning hole through which the block (21) passes.
The flow meter for a water separator according to claim 2, wherein the hand wheel (9) includes a top ring (91) and a bottom ring (92) that are both ring-shaped, and the top ring (91) ) There is a positioning hole in the middle, and the top ring (91) and the bottom ring (92) are connected into one body by two symmetrically arranged connecting ribs (93).
The flow meter for a water trap according to claim 3, wherein the top of the connecting seat (1) has an axially extending extension (11), and the inner wall of the extension (11) has a supply The inner thread of the housing (2) is threadedly connected, the outer wall of the extension part (11) is a tapered surface, and the inner wall of the bottom ring (92) is a tapered surface matching the tapered surface.
The flow meter for a water separator according to claim 4, wherein the outer wall of the bottom end of the housing (2) has a plurality of annular grooves, and the pressure plate (7) has a cylindrical shape and is wrapped in the shell The connecting portion (71) of the outer wall of the bottom end of the body (2), the inner wall of the connecting portion (71) is provided with a radially protruding convex ring (72) embedded in each annular groove.
The flow meter for a water separator according to claim 5, characterized in that the top surface of the pressure plate (7) is embedded with a gasket (10) sealed at the bottom end of the housing (2).
The flow meter for a water separator according to claim 6, characterized in that the bottom end of the pressure plate (7) has an axially extending diameter-reducing section one (73) and a reduced-diameter section two (74) and a reduced diameter Section two (74) is located below the reduced diameter section one (73), the outer diameter of the reduced diameter section one (73) is smaller than the outer diameter of the pressure plate (7) and the outer diameter of the reduced diameter section one (73) is greater than the reduced diameter The outer diameter of section two (74), the outer wall of the reduced diameter section one (73) transitions to the reduced diameter section two (74) through a tapered surface, and the outer diameter of the flow plate (8) is larger than that of the reduced diameter section two (74) The outer diameter.
The flow meter for a water separator according to claim 7, wherein the outer wall of the connecting seat (1) is embedded with a sealing ring (12), and the bottom end of the pressure plate (7) is embedded with a sealing ring Second (13), the casing (2) is embedded with at least two sealing rings (14) sealed on the inner wall of the connecting seat (1).
The flow meter for a water separator according to claim 8, characterized in that the indicator block (6) is located on the top of the flow indicator rod (3) and the two are connected as a whole, and the middle part of the flow indicator rod (3) There is a shoulder (31), the top end of the spring (4) abuts against the shoulder (31), and the bottom end of the spring (4) abuts against the pressure plate (7).