Fine-adjustable flow meter

Abstract

The flow meter comprises an adjusting pipe, an installation block is fixedly installed on the outer wall of the middle position of the adjusting pipe, and side plates are fixedly installed on the edges of the two sides of the top end of the installation block. When the device is used for finely adjusting the flow, a worker can drive the adjusting mechanism to operate by rotating the rotating shaft, so that the blocking block is driven to move in the formed adjusting groove, the flow can be adjusted, after adjustment is completed, an arranged stop rod is connected with a formed limiting hole in a clamped mode under the action of a spring, and the flow can be finely adjusted. Meanwhile, due to the self-locking property of the worm gear and the worm, the device can be kept more stable after the flow is adjusted, the situation that the position of the blocking block deviates due to the fact that a worker errors the rotating shaft is avoided, and therefore the influence of external factors on the adjusted position of the blocking block is reduced, and the working efficiency is improved. In addition, through the arrangement of a water blocking pad and a connecting circular groove, the sealing performance is higher when the device is connected with a measuring pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, in particular to a fine-tunable flow meter. Background Art

[0002] A flow meter refers to an instrument that measures the flow rate and the total amount of fluid within a selected time interval. Simply put, it is an instrument used to measure the flow rate of fluid in a pipeline or open channel. Flow meters are divided into differential flow meters, rotor flow meters, throttling flow meters, slit flow meters, positive displacement flow meters, electromagnetic flow meters, ultrasonic flow meters, etc.

[0003] During the experiment, it was found that appropriately changing the flow rate inside the flow meter can fine-tune the pulse error. However, many existing flow meters are not convenient for adjusting the flow rate of the device during use, which brings certain inconveniences to users.

[0004] To this end, the utility model provides a fine-tunable flow meter to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a fine-tunable flow meter to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fine-tunable flow meter, comprising an adjusting tube, a mounting block fixedly mounted on the outer wall at the middle position of the adjusting tube, side plates fixedly mounted at the edge positions on both sides of the top of the mounting block, an adjusting mechanism installed on the mounting block, the adjusting mechanism comprising an adjusting groove, a blocking block, a mounting tube and a threaded rod, an adjusting groove is provided inside the mounting block, the adjusting groove is communicated with the adjusting tube, a blocking block is slidingly installed inside the adjusting groove, a mounting tube is vertically embedded and rotatably mounted on the top of the mounting block, a threaded rod is provided inside the mounting tube, the bottom end of the threaded rod is rotatably connected to the top of the block, an internal thread is provided inside the mounting tube, and the threaded rod is threadedly connected to the internal thread.

[0007] Preferably, the adjustment mechanism also includes a worm wheel, a rotating shaft and a worm, the worm wheel is fixedly mounted on the mounting tube, a rotating shaft is rotatably mounted between the two groups of side plates, a worm is fixedly mounted on the rotating shaft at a position corresponding to the worm wheel, and the worm wheel is meshingly connected with the worm.

[0008] Preferably, the left side of the rotating shaft extends to the outside of the mounting block, and a mounting groove is provided inside the left side of the rotating shaft. A support block is slidably installed inside the mounting groove, and a spring is fixedly installed on the left inner wall of the mounting groove. The other end of the spring is fixedly connected to the support block. Stop rods are fixedly installed on the front and rear ends of the right side of the support block, and several groups of limiting holes are provided in a circular array on the left outer wall of the side panel near the support block.

[0009] Preferably, a fixing plate is fixedly mounted on the right outer wall of the mounting block, a flow meter display is fixedly mounted on the fixing plate, the bottom end of the flow meter display extends to the inside of the regulating tube, and an inductive converter is fixedly mounted thereon.

[0010] Preferably, connecting flanges are fixedly installed on both sides of the regulating pipe, and a plurality of mounting holes are provided in a circular array on the two groups of connecting flanges. Water-blocking pads are fixedly installed on the sides of the two groups of connecting flanges away from each other.

[0011] Preferably, connecting circular grooves are provided on both sides of the regulating tube, and sealing gaskets are fixedly installed inside the two groups of connecting circular grooves.

[0012] Beneficial effects

[0013] The utility model provides a fine-tunable flow meter. Compared with the existing technology, it has the following advantages:

[0014] When using this device to fine-tune the flow, the staff can drive the adjustment mechanism by rotating the shaft, thereby driving the block to move inside the opened adjustment groove, so as to adjust the flow rate. After the adjustment is completed, the set stop rod is engaged with the opened limit hole under the action of the spring. At the same time, the self-locking nature of the worm gear enables the device to remain more stable after adjusting the flow, avoiding the position of the block caused by human error in the shaft, thereby reducing the influence of external factors on the position of the block after adjustment. In addition, the setting of the water-blocking pad and the connecting circular groove makes the sealing of the device higher when connected to the measuring pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This utility model Figure 1 A in the middle is an enlarged structural diagram;

[0017] Figure 3 This is a schematic diagram of the side cross-sectional structure of the utility model;

[0018] Figure 4 This utility model Figure 3 The enlarged structural diagram at B in the middle;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model.

[0020] In the figure, 1, adjusting tube; 2, mounting block; 201, side plate; 3, adjusting groove; 4, blocking block; 5, mounting tube; 6, threaded rod; 7, worm gear; 8, rotating shaft; 9, worm; 10, mounting groove; 11, supporting block; 12, spring; 13, stop rod; 14, limiting hole; 15, fixing plate; 16, flow meter display; 17, inductive converter; 18, connecting flange; 19, mounting hole; 20, water-blocking pad; 21, connecting circular groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1:

[0023] See also Figure 1-5 A fine-adjustable flowmeter includes an adjusting tube 1, a mounting block 2 is fixedly installed on the outer wall in the middle position of the adjusting tube 1, and side plates 201 are fixedly installed at the edge positions on both sides of the top of the mounting block 2. An adjusting mechanism is installed on the mounting block 2, and the adjusting mechanism includes an adjusting groove 3, a blocking block 4, a mounting tube 5 and a threaded rod 6. An adjusting groove 3 is opened inside the mounting block 2, and the adjusting groove 3 is connected to the adjusting tube 1. A blocking block 4 is slidingly installed inside the adjusting groove 3, and a mounting tube 5 is vertically embedded and rotatably installed on the top of the mounting block 2. A threaded rod 6 is provided inside the mounting tube 5, and the bottom end of the threaded rod 6 is rotatably connected to the top of the blocking block 4. An internal thread is opened inside the mounting tube 5, and the threaded rod 6 is threadedly connected to the internal thread.

[0024] The adjusting mechanism also includes a worm gear 7, a rotating shaft 8 and a worm 9. The worm gear 7 is fixedly mounted on the mounting tube 5. The rotating shaft 8 is rotatably mounted between the two sets of side plates 201. The worm 9 is fixedly mounted on the rotating shaft 8 at a position corresponding to the worm gear 7. The worm gear 7 is meshed with the worm 9.

[0025] A fixing plate 15 is fixedly mounted on the right outer wall of the mounting block 2 , a flow meter display 16 is fixedly mounted on the fixing plate 15 , the bottom end of the flow meter display 16 extends into the interior of the regulating tube 1 , and an inductive converter 17 is fixedly mounted thereon.

[0026] When using this device to fine-tune the flow rate, the staff can drive the worm 9 to rotate by rotating the rotating shaft 8. Since the worm 9 is meshed with the worm wheel 7 fixedly installed on the mounting tube 5, it synchronously drives the mounting tube 5 to rotate. Since the internal thread opened inside the mounting tube 5 is threadedly connected with the threaded rod 6, it can drive the block 4 to move inside the opening of the regulating groove 3, thereby being able to adjust the size of the flow rate. At the same time, the self-locking nature of the worm wheel 7 and worm 9 makes this device more stable after adjusting the flow rate.

[0027] Example 2:

[0028] See also Figure 1-5 This embodiment provides a technical solution based on the first embodiment: the left side of the rotating shaft 8 extends to the outside of the mounting block 2, and a mounting groove 10 is opened inside the left side of the rotating shaft 8. A support block 11 is slidably installed inside the mounting groove 10. A spring 12 is fixedly installed on the left inner wall of the mounting groove 10, and the other end of the spring 12 is fixedly connected to the support block 11. Stop rods 13 are fixedly installed on the front and rear ends of the right side of the support block 11, and a plurality of groups of limiting holes 14 are opened in a circular array on the left outer wall of the side plate 201 close to the support block 11.

[0029] Connecting flanges 18 are fixedly mounted on both sides of the regulating pipe 1 . A plurality of mounting holes 19 are formed in a circular array on both sets of connecting flanges 18 . Water-blocking pads 20 are fixedly mounted on the sides of the two sets of connecting flanges 18 away from each other.

[0030] Connecting circular grooves 21 are provided on both sides of the regulating tube 1 , and sealing gaskets are fixedly installed inside the two sets of connecting circular grooves 21 .

[0031] After the staff adjusts the position of the block, the stop rod 13 is engaged with the limit hole 14 opened at the corresponding position under the action of the spring 12, thereby further enhancing the stability of the position of the block 4 after adjustment, avoiding the deviation of the position of the block 4 caused by the error of the rotating shaft 8, thereby reducing the influence of external factors on the position of the block 4 after adjustment. In addition, the setting of the water-blocking pad 20 and the connecting circular groove 21 makes the sealing performance of the device higher when connected to the measuring pipe.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fine-tunable flow meter, comprising a regulating tube (1), characterized in that: A mounting block (2) is fixedly mounted on the outer wall at the middle position of the adjusting tube (1), and side plates (201) are fixedly mounted at the edge positions on both sides of the top of the mounting block (2). An adjusting mechanism is mounted on the mounting block (2), and the adjusting mechanism comprises an adjusting groove (3), a blocking block (4), a mounting tube (5) and a threaded rod (6). An adjusting groove (3) is provided inside the mounting block (2), and the adjusting groove (3) is communicated with the adjusting tube (1). A blocking block (4) is slidably mounted inside the adjusting groove (3). A mounting tube (5) is vertically embedded and rotatably mounted on the top of the mounting block (2). A threaded rod (6) is provided inside the mounting tube (5), and the bottom end of the threaded rod (6) is rotatably connected to the top of the blocking block (4). An internal thread is provided inside the mounting tube (5), and the threaded rod (6) is threadedly connected to the internal thread.

2. A fine-tunable flow meter according to claim 1, characterized in that: The regulating mechanism further comprises a worm wheel (7), a rotating shaft (8) and a worm (9); the worm wheel (7) is fixedly mounted on the mounting tube (5); a rotating shaft (8) is rotatably mounted between the two sets of side plates (201); a worm (9) is fixedly mounted on the rotating shaft (8) at a position corresponding to the worm wheel (7); and the worm wheel (7) is meshedly connected with the worm (9).

3. A fine-tunable flow meter according to claim 2, characterized in that: The left side of the rotating shaft (8) extends to the outside of the mounting block (2), and a mounting groove (10) is provided inside the left side of the rotating shaft (8). A support block (11) is slidably installed inside the mounting groove (10). A spring (12) is fixedly installed on the left inner wall of the mounting groove (10), and the other end of the spring (12) is fixedly connected to the support block (11). Stop rods (13) are fixedly installed at both the front and rear ends of the right side of the support block (11), and a plurality of groups of limiting holes (14) are provided in a circular array on the left outer wall of the side plate (201) close to the support block (11).

4. The fine-tunable flow meter according to claim 1, characterized in that: A fixing plate (15) is fixedly mounted on the right outer wall of the mounting block (2), a flow meter display (16) is fixedly mounted on the fixing plate (15), the bottom end of the flow meter display (16) extends into the interior of the regulating tube (1) and an inductive converter (17) is fixedly mounted thereon.

5. The fine-tunable flow meter according to claim 1, characterized in that: Connecting flanges (18) are fixedly mounted on both sides of the regulating pipe (1), and a plurality of mounting holes (19) are provided in a circular array on both sets of connecting flanges (18). Water-blocking pads (20) are fixedly mounted on the sides of the two sets of connecting flanges (18) that are away from each other.

6. The fine-adjustable flow meter according to claim 1, characterized in that: Both sides of the regulating tube (1) are provided with connecting circular grooves (21), and sealing gaskets are fixedly installed inside the two groups of connecting circular grooves (21).

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