Balanced flowmeter convenient to install

Abstract

The utility model discloses a balance flow meter convenient to install, and relates to the technical field of flow meters, the balance flow meter convenient to install comprises a connecting pipe, an installing pipe installed at the top of the connecting pipe and a flow meter body arranged in the installing pipe, an installing mechanism is arranged between the installing pipe and the flow meter body, and two sets of inserting holes are formed in the two sides of the bottom of the flow meter body; the bottom end of the flow meter body is inserted into the fixing ring, the positioning block can be inserted into the matched positioning hole to position the flow meter body, the right-angle ladder block can be pressed into the sliding groove firstly and then automatically aligned and inserted into the inserting hole under the elastic force of the reset spring in cooperation with guiding of the bevel edge end of the right-angle ladder block, and the flow meter body is fixed; the whole flow meter body only needs to be completely inserted into the fixing ring, the installation process of the balance flow meter can be completed, more convenience and rapidness are achieved, under the pressure of fluid in the installation pipe, the sealing ring can be tightly pressed between the fixing ring and the flow meter body, and therefore the sealing effect between the fixing ring and the flow meter body is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flow meters, in particular to a balanced flow meter convenient to install. BACKGROUND

[0002] The balanced flow meter is a special differential pressure flow meter, which adopts a unique equal Reynolds number and increases the thickness and machining precision of the throttling element to make the flow performance close to the Venturi, and has a simple and safe structure and a qualitative leap in performance. The ingenious structure design can achieve high-precision long-term stable measurement with relatively small permanent pressure loss under the shortest straight pipe requirement.

[0003] The patent with publication number CN210293360U discloses a balanced flow meter sensor convenient to install, which comprises a connecting pipe, the other end of the metal paddle is sleeved with an auxiliary shaft, the upper and lower sides of the main shaft are fixedly connected with the inner walls of the upper and lower sides of the outer ring, and the side surface of the outer ring is inlaid with teeth. This design can control the rotation of the outer ring by rotating the teeth to drive the arc-shaped rod to clamp or open the metal paddle. The sensor is inserted into the pipeline, and the notch on the surface of the sensor is aligned with the middle of the inner ring. The metal paddle is automatically clamped on the notch on the surface of the sensor due to the return spring. Since the opposite sides of the six metal paddles are inlaid with rubber pads, the rubber pads not only clamp the sensor, but also seal the top of the pipeline.

[0004] According to the related technology in the above, the inventor believes that when installing, the reverse outer ring needs to be first installed, then the sensor of the flow meter is inserted into the pipeline, and then the notch on the surface of the sensor is aligned with the inner ring by hand, and then the outer ring is loosened to clamp and fix the sensor. However, when aligning the inner ring and the notch on the surface of the sensor, it may need to be adjusted several times due to the lack of positioning, and the overall installation process is relatively cumbersome and inconvenient, so it needs to be improved. Content of the utility model

[0005] In order to solve the above problems, the present application provides a balanced flow meter convenient to install.

[0006] The balanced flow meter convenient to install provided by the present application adopts the following technical scheme:

[0007] A balanced flow meter convenient to install, comprising a connecting pipe, an installation pipe installed on the top of the connecting pipe, and a flow meter body arranged in the installation pipe, an installation mechanism being arranged between the installation pipe and the flow meter body, two groups of insertion holes being formed on both sides of the bottom of the flow meter body, a fixed ring being fixedly arranged in the top end of the connecting pipe, the bottom end of the flow meter body being inserted into the fixed ring, a positioning hole being formed in the top of the inner side of the fixed ring, and a positioning block being fixedly arranged on the outer wall of the bottom end of the flow meter body and being inserted into the positioning hole of the fixed ring.

[0008] The mounting mechanism comprises two sets of reset springs fixed on both sides of the fixed ring, and two sets of right-angle ladder blocks fixed at one end of the reset springs and slidingly connected in the fixed ring, the oblique edge end of the right-angle ladder block is matched and inserted into the insertion hole of the flowmeter body, and a pressing mechanism is slidingly arranged outside the fixed ring and used for pulling the two sets of right-angle ladder blocks away from the insertion hole after being moved downward.

[0009] By adopting the technical scheme, the flowmeter body is positioned by inserting the bottom end of the flowmeter body into the fixed ring and inserting the positioning block into the matched positioning hole, the right-angle ladder block is guided by the oblique edge end, the right-angle ladder block is pressed into the sliding groove first and then automatically aligned and inserted into the insertion hole under the elastic force of the reset spring, the flowmeter body is fixed, and the installation process of the balance flowmeter is completed only by inserting the flowmeter body into the fixed ring, so the process is more convenient and fast.

[0010] Preferably, the connecting pipe is fixed with a fixed flange at both ends, a plurality of fixing holes are arranged at the edge of the fixed flange, two sets of sliding grooves are arranged on the inner wall of the fixed ring, the reset spring is fixedly connected in the sliding groove of the fixed ring, and the right-angle end of the right-angle ladder block is slidingly connected in the sliding groove of the fixed ring.

[0011] By adopting the technical scheme, the fixed flange can be installed on the pipeline outside by the bolt passing through the fixing hole, and the connecting pipe and the pipeline outside can be connected by the fixed flange.

[0012] Preferably, the side, away from the flowmeter body, of the two sets of right-angle ladder blocks is fixed with a push-pull rod, one end of the push-pull rod penetrates and extends to the outside of the mounting pipe, the end, away from the right-angle ladder block, of the push-pull rod is provided with a guide groove, the pressing mechanism comprises a sliding ring slidingly arranged outside the matched mounting pipe and two sets of pressing rods fixedly connected at the bottom of the sliding ring and matched and abutted at the guide groove of the push-pull rod, and the bottom of the pressing rod is provided with a guide slope used for guiding the push-pull rod to the outside of the mounting pipe after the pressing rod is moved downward.

[0013] By adopting the technical scheme, the pressing rod is moved downward by pressing the sliding ring, and the two sets of push-pull rods are pushed to the outside of the mounting pipe by the guide slope and the guide groove, so that the oblique edge end of the two sets of right-angle ladder blocks is pulled away from the insertion hole, the flowmeter body is separated, and the flowmeter body is conveniently and quickly disassembled and assembled.

[0014] Preferably, the inner side and bottom of the fixed ring are fixed with a blocking ring located below the flowmeter body, the bottom of the flowmeter body is fixed with a sealing ring matched and abutted at the top of the blocking ring, and the outer wall of the sealing ring is matched and abutted with the inner wall of the fixed ring.

[0015] By adopting the above technical solution, under the pressure of the fluid in the installation pipe, the sealing ring can be tightly pressed between the fixed ring and the flow meter body, thereby improving the sealing effect between the fixed ring and the flow meter body.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The flow meter body is positioned by inserting the bottom end of the flow meter body into the fixing ring and allowing the positioning block to be inserted into the matching positioning hole. With the guide of the inclined end of the right-angled trapezoidal block, the right-angled trapezoidal block is first pressed into the slide groove and then automatically aligned and inserted into the insertion hole under the elastic force of the return spring to fix the flow meter body. The entire process of installing the balanced flow meter can be completed simply by inserting the flow meter body completely into the fixing ring, which is more convenient and faster. Under the pressure of the fluid in the installation pipe, the sealing ring can be tightly pressed between the fixing ring and the flow meter body, thereby improving the sealing effect between the fixing ring and the flow meter body.

[0018] 2. By pressing down the slip ring, the pressure rod can be moved down. With the guidance of the guide slope and guide groove, the two sets of push-pull rods can be pushed to the outside of the installation pipe at the same time, thereby pulling the inclined ends of the two sets of right-angle trapezoidal blocks away from the insertion hole, so that the flow meter body is detached from the fixed, which facilitates quick disassembly and assembly of the flow meter body. The operation is simple, convenient and practical, and suitable for large-scale promotion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a balanced flow meter that is easy to install, according to an embodiment of this application.

[0020] Figure 2 This is a front cross-sectional view of a balanced flow meter that is easy to install, according to an embodiment of this application.

[0021] Figure 3 The embodiments of this application mainly embody Figure 1 Enlarged view of the structure of A in the middle;

[0022] Figure 4 The embodiments of this application mainly embody Figure 2 Enlarged view of the structure of B in the middle;

[0023] Figure 5 The embodiments of this application mainly embody Figure 4 Enlarged view of the structure of C in the middle;

[0024] Reference numerals: 1. Connecting pipe; 11. Mounting pipe; 12. Fixing flange; 13. Fixing hole; 2. Flowmeter body; 21. Insertion hole; 22. Positioning block; 3. Fixing ring; 31. Slide groove; 32. Return spring; 33. Right-angle step block; 34. Push-pull rod; 35. Guide groove; 36. Positioning hole; 4. Slip ring; 41. Pressure rod; 42. Guide slope; 5. Retaining ring; 51. Sealing ring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0026] This application discloses a balanced flow meter that is easy to install.

[0027] An easy-to-install balanced flow meter, see reference Figures 1-2 It includes a connecting pipe 1, an installation pipe 11, and a flow meter body 2. The connecting pipe 1 is fixed with a fixing flange 12 at both ends. Several fixing holes 13 are opened at the edge of the fixing flange 12. The fixing flange 12 can be installed on the external pipeline by passing bolts through the fixing holes 13. The fixing flange 12 can connect the connecting pipe 1 to the external pipeline.

[0028] Reference Figures 1-2 The installation pipe 11 is installed on the top of the connecting pipe 1, and the flow meter body 2 is located inside the installation pipe 11. The installation pipe 11 can connect the connecting pipe 1 and the flow meter body 2. The flow meter body 2 is an existing balanced flow meter, and its internal structure and principle have been disclosed, so they will not be described in detail here.

[0029] Reference Figures 2-4 Two sets of insertion holes 21 are provided on both sides of the bottom of the flow meter body 2. A fixing ring 3 is fixedly provided inside the top of the connecting pipe 1. The bottom of the flow meter body 2 is inserted into the fixing ring 3. The fixing ring 3 can connect the bottom of the connecting pipe 1 and the flow meter body 2. A positioning hole 36 is provided on the top of the inner side of the fixing ring 3. A positioning block 22 is fixedly provided on the outer wall of the bottom of the flow meter body 2 and is inserted into the positioning hole 36 of the fixing ring 3. After the positioning block 22 is inserted into the matching positioning hole 36, it can position the flow meter body 2 so that the flow meter body 2 can be vertically inserted into the fixing ring 3.

[0030] Reference Figure 2 and Figure 4 An installation mechanism is provided between the installation pipe 11 and the flow meter body 2. The installation mechanism includes two sets of return springs 32 fixed on both sides of the fixed ring 3, and two sets of right-angled trapezoidal blocks 33 fixed on one end of the return springs 32 and slidably connected in the fixed ring 3. Two sets of sliding grooves 31 are provided on both sides of the inner wall of the fixed ring 3. The return springs 32 are fixedly connected in the sliding grooves 31 of the fixed ring 3, and the right-angled ends of the right-angled trapezoidal blocks 33 are slidably connected in the sliding grooves 31 of the fixed ring 3. The fixed ring 3 can fix the return springs 32 through the sliding grooves 31, and limit the right-angled ends of the right-angled trapezoidal blocks 33 through the sliding grooves 31, so that the right-angled trapezoidal blocks 33 can only slide laterally.

[0031] Reference Figures 2-4, the oblique edge end of the right-angle ladder block 33 is matched and inserted into the insertion hole 21 of the flowmeter body 2, when the bottom end of the flowmeter body 2 is inserted into the fixing ring 3, and the positioning block 22 is inserted into the matched positioning hole 36, the flowmeter body 2 can be positioned, so that the right-angle ladder block 33 of the flowmeter body 2 is in the same vertical plane with the insertion hole 21, at this time, the bottom end of the flowmeter body 2 will be guided by the slope of the oblique edge end of the right-angle ladder block 33, and the right-angle ladder block 33 is completely pressed into the sliding groove 31, with the continuous insertion of the flowmeter body 2, the insertion hole 21 of the flowmeter body 2 will move to one side of the right-angle ladder block 33, at this time, under the elastic force of the reset spring 32, the oblique edge end of the right-angle ladder block 33 will automatically align and insert into the insertion hole 21 of the flowmeter body 2, thereby connecting and fixing between the fixing ring 3 and the flowmeter body 2, to complete the installation of the flowmeter body 2.

[0032] Referring to Figure 2 With Figure 4 , the two groups of right-angle ladder blocks 33 are fixedly provided with push-pull rods 34 on the side away from the flowmeter body 2, one end of the push-pull rod 34 penetrates and extends to the outside of the installation pipe 11, and the end of the push-pull rod 34 away from the right-angle ladder block 33 is provided with a guide groove 35, by pulling the push-pull rod 34 to the outside of the installation pipe 11, the oblique edge end of the right-angle ladder block 33 can be pulled away from the insertion hole 21, so that the flowmeter body 2 is separated from the fixing, and the flowmeter body 2 can be quickly disassembled.

[0033] Referring to Figure 1 , Figure 2 and Figure 4 , the fixing ring 3 is slidably provided with a pressing mechanism outside for pulling away the two groups of right-angle ladder blocks 33 from the insertion hole 21 after moving downward, the pressing mechanism comprises a sliding ring 4 slidably provided outside the matched installation pipe 11, and two groups of pressing rods 41 fixedly connected at the bottom of the sliding ring 4 and matched and abutted at the guide groove 35 of the push-pull rod 34, the bottom of the pressing rod 41 is provided with a guide slope 42 for guiding the push-pull rod 34 to be pushed to the outside of the installation pipe 11 after the pressing rod 41 moves downward, and the guide slope 42 of the pressing rod 41 abuts at the guide groove 35 of the push-pull rod 34.

[0034] When the sliding ring 4 is pressed downward, the pressing rod 41 will move downward, at this time, the end of the guide slope 42 of the pressing rod 41 will be guided by the slope in the guide groove 35, and the two groups of push-pull rods 34 will be pushed to the outside of the installation pipe 11, thereby pulling the oblique edge end of the two groups of right-angle ladder blocks 33 away from the insertion hole 21, so that the flowmeter body 2 is separated from the fixing, at this time, the staff can pull out the bottom end of the flowmeter body 2 from the fixing ring 3, to quickly disassemble the flowmeter body 2.

[0035] Referring to Figure 2 With Figure 5The bottom of the fixed ring 3 is fixed with a blocking ring 5 below the flowmeter body 2. The bottom of the flowmeter body 2 is fixed with a sealing ring 51 abutting against the top of the blocking ring 5. The outer wall of the sealing ring 51 abuts against the inner wall of the fixed ring 3. The blocking ring 5 can limit the flowmeter body 2 and the sealing ring 51. When the flowmeter body 2 is installed, the sealing ring 51 can be tightly pressed between the fixed ring 3 and the flowmeter body 2 under the pressure of the fluid in the installation pipe 11, thereby improving the sealing effect between the fixed ring 3 and the flowmeter body 2.

[0036] The implementation principle of the balanced flowmeter convenient to install is as follows:

[0037] When installed, the flowmeter body 2 is directly inserted into the fixed ring 3, and the positioning block 22 is inserted into the matching positioning hole 36 to position the flowmeter body 2, so that the right-angle ladder block 33 of the flowmeter body 2 is in the same vertical plane as the insertion hole 21. At this time, the bottom end of the flowmeter body 2 will be guided by the inclined surface at the inclined edge end of the right-angle ladder block 33, and the right-angle ladder block 33 will be completely pressed into the sliding groove 31. With the continuous insertion of the flowmeter body 2, the insertion hole 21 of the flowmeter body 2 will move to one side of the right-angle ladder block 33. At this time, the inclined edge end of the right-angle ladder block 33 will automatically align and be inserted into the insertion hole 21 of the flowmeter body 2 under the elastic force of the return spring 32, thereby connecting and fixing the fixed ring 3 and the flowmeter body 2 to complete the installation of the flowmeter body 2.

[0038] When the flowmeter body 2 is installed, the sealing ring 51 can be tightly pressed between the fixed ring 3 and the flowmeter body 2 under the pressure of the fluid in the installation pipe 11, thereby improving the sealing effect between the fixed ring 3 and the flowmeter body 2.

[0039] When the flowmeter body 2 needs to be disassembled, the sliding ring 4 can be pressed downward to drive the pressing rod 41 to move downward. At this time, the guide inclined surface 42 end of the pressing rod 41 will be guided by the inclined surface in the guide groove 35, and the two groups of push-pull rods 34 will be pushed to the outside of the installation pipe 11 at the same time, thereby pulling the inclined edge end of the two groups of right-angle ladder blocks 33 away from the insertion hole 21, so that the flowmeter body 2 is separated from the fixed ring 3. At this time, the worker can pull out the bottom end of the flowmeter body 2 from the fixed ring 3 to quickly disassemble the flowmeter body 2.

[0040] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A balanced flowmeter convenient to install, comprising a connecting pipe (1), an installation pipe (11) installed on the top of the connecting pipe (1), and a flowmeter body (2) arranged in the installation pipe (11), and an installation mechanism is arranged between the installation pipe (11) and the flowmeter body (2), characterized in that: two groups of insertion holes (21) are arranged on both sides of the bottom of the flowmeter body (2), a fixed ring (3) is fixedly arranged in the top end of the connecting pipe (1), the bottom end of the flowmeter body (2) is inserted into the fixed ring (3) in a matched manner, a positioning hole (36) is arranged on the top inner side of the fixed ring (3), and a positioning block (22) fixedly arranged on the outer wall of the bottom end of the flowmeter body (2) is inserted into the positioning hole (36) of the fixed ring (3) in a matched manner; the installation mechanism comprises two groups of reset springs (32) fixedly arranged on both sides of the fixed ring (3), and two groups of right-angle ladder blocks (33) fixedly arranged at one end of the reset springs (32) and slidingly connected in the fixed ring (3), the oblique edge end of the right-angle ladder block (33) is inserted into the insertion hole (21) of the flowmeter body (2) in a matched manner, and a pressing mechanism is slidingly arranged on the outer side of the fixed ring (3) and used for pulling the two groups of right-angle ladder blocks (33) away from the insertion hole (21) after being moved downward.

2. A balanced flowmeter for ease of installation according to claim 1, characterized in that: fixed flanges (12) are fixedly arranged at both ends of the connecting pipe (1), and a plurality of fixed holes (13) are arranged at the edges of the fixed flanges (12).

3. A balanced flowmeter for ease of installation according to claim 1, wherein: two groups of sliding grooves (31) are arranged on both sides of the inner wall of the fixed ring (3), and the reset springs (32) are fixedly connected in the sliding grooves (31) of the fixed ring (3), and the right-angle end of the right-angle ladder block (33) is slidingly connected in the sliding groove (31) of the fixed ring (3).

4. A balanced flowmeter for ease of installation according to claim 1, characterized in that: push-pull rods (34) are fixedly arranged on the sides, away from the flowmeter body (2), of the two groups of right-angle ladder blocks (33).

5. A balanced flowmeter for ease of installation according to claim 4 wherein: one end of the push-pull rod (34) penetrates and extends to the outside of the installation pipe (11), and a guide groove (35) is arranged at the end, away from the right-angle ladder block (33), of the push-pull rod (34).

6. A balanced flowmeter for ease of installation according to claim 5 wherein: the pressing mechanism comprises a sliding ring (4) slidingly arranged on the outer side of the matched installation pipe (11), and two groups of pressing rods (41) fixedly connected at the bottoms of both sides of the sliding ring (4) and abutting against the guide groove (35) of the push-pull rod (34) in a matched manner, and a guide inclined surface (42) is arranged at the bottom of the pressing rod (41) and used for guiding the push-pull rod (34) to be pushed to the outside of the installation pipe (11) after the pressing rod (41) is moved downward.

7. A balanced flowmeter for ease of installation according to claim 1 wherein: a stop ring (5) is fixedly arranged below the flowmeter body (2) at the bottom inner side of the fixed ring (3).

8. A balanced flowmeter for ease of installation according to claim 7, characterized in that: a sealing ring (51) is fixedly arranged at the bottom of the flowmeter body (2) and abuts against the top of the stop ring (5), and the outer wall of the sealing ring (51) abuts against the inner wall of the fixed ring (3).

Images