An ultrasonic heat meter that is easy to clean automatically

Abstract

The invention provides an ultrasonic heat meter that is easy to automatically clean, comprising a module sealing box, a module box mounting frame and a flow measuring tube, wherein an electronic module and a lithium battery are arranged in the module sealing box, a bracket mounting tube is arranged on the flow measuring tube, a reflector bracket is sleeved on the bracket mounting tube, a reflector bracket is connected to the reflector, and also comprises a motor, a driving gear is connected to the motor shaft end, the driving gear is connected to a driving gear set, the driving gear set is connected to a driven gear, an inner hole is arranged in the center of the driven gear, a worm is sleeved in the inner hole, and an internal thread that cooperates with the worm is arranged on the inner hole, one end of the worm is connected to the reflector, and a scraper is arranged above the reflector. The invention can regularly remove stains on the surface of the reflector to prevent the stains from precipitating and sticking on the reflector surface, thereby improving the quality and operation cycle of the product.

Description

Technical Field

[0001] The invention relates to a heat meter measuring device, in particular to an ultrasonic heat meter which is convenient for automatic cleaning. Background Art

[0002] At present, ultrasonic flow measurement technology has become increasingly mature in heat meters, especially the reflective type, which generally includes flow tube, ultrasonic reflector, ultrasonic reflector device and metering device. There are two main types of ultrasonic reflectors: one is to install a reflector in the flow tube to reflect ultrasonic waves; the other is to use the inner wall of the flow tube for reflection. Ultrasonic heat meters are widely used in the heat metering and charging of heating systems in northern my country. Since the heating system pipelines use circulating water, and the water quality in some areas is hard, the heating system does not operate in summer, and the water treatment of the pipeline is static, the ultrasonic heat meter reflector often sticks to dirt during use, affecting the metering accuracy of the meter, or even failing to measure. Although there are now detachable reflectors, the reflectors can be removed for cleaning when needed, but the disassembly and assembly of the reflectors is complicated, and the installation site is difficult to operate. The on-site disassembly and assembly of the reflectors will also affect the metering accuracy of the product, and the product needs to be retested. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The purpose of the present invention is to provide an ultrasonic heat meter that is easy to clean automatically, which can regularly remove stains on the surface of the reflector to prevent the stains from precipitating and sticking on the reflector, thereby improving the quality and operation cycle of the product. To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] (II) Technical solution

[0006] An ultrasonic heat meter that is easy to automatically clean comprises a module sealing box, a module box mounting frame and a flow measuring tube, wherein an electronic module and a lithium battery are arranged in the module sealing box, a bracket mounting tube is arranged on the flow measuring tube, a reflector bracket is sleeved on the bracket mounting tube, a reflector bracket is connected to the reflector bracket, and a motor is also included, wherein the motor is connected to the electronic module and the lithium battery through electric wires, a driving gear is connected to the motor shaft end, the driving gear is connected to a driving gear set, the driving gear set is connected to a driven gear, an inner hole penetrating the driven gear is arranged at the center of the driven gear, a worm is sleeved in the inner hole, and an internal thread that cooperates with the worm is arranged on the inner hole, one end of the worm penetrates the reflector bracket and extends to be connected to the reflector, a scraper is arranged above the reflector, and the scraper is arranged on the reflector bracket, the driving gear, the driving gear set and the driven gear are all arranged in a gear mounting box, and the gear mounting box is arranged close to the bracket mounting tube and is provided with a cover plate.

[0007] Furthermore, the reflector bracket includes a pipe plug and two connecting rods arranged at the front end of the pipe plug, the inner side of the connecting rod is provided with a groove for clamping the reflector, and the scraper is arranged between the two connecting rods and close to the upper end surface of the groove.

[0008] Furthermore, a positioning block is provided on the side wall of the pipe plug, and a positioning groove that cooperates with the positioning block is provided in the bracket mounting tube.

[0009] Furthermore, the rear end of the pipe plug is sequentially covered with an O-ring and a metal threaded pressure ring.

[0010] Furthermore, the worm gear is provided with a plurality of annular grooves, the annular grooves are covered with shaft sealing rings, and the shaft sealing rings are arranged in the bracket mounting tube.

[0011] Furthermore, an adjustment hole column is provided on the cover plate, and the other end of the worm member is arranged in the adjustment hole column.

[0012] Furthermore, the motor is covered with a motor housing, and the motor housing is arranged in the middle of the module box mounting frame and is integrally formed with the gear mounting box.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, the present invention enables the motor to rotate alternately forward and reverse regularly through the program setting of the electronic module. During the rotation of the motor, the reflector arranged at the end of the worm gear is driven to move forward and backward through the gear set, so that the scraper scrapes the stains on the surface of the reflector back and forth, thereby achieving the effect of removing the stains, avoiding the precipitation and adhesion of the stains on the reflector surface, and realizing automatic cleaning of the reflector without disassembling the reflector, reducing the operation and maintenance cost of the heat meter, thereby improving the quality and operation cycle of the product; the present invention has a compact structure and a novel design, and effectively solves the technical problem of scaling of the reflector affecting the measurement during the use of the ultrasonic heat meter, which is conducive to market promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded view of the present invention;

[0016] Figure 2 is a partial cross-sectional view of the present invention;

[0017] Figure 3 is a schematic diagram of a reflector bracket in the present invention;

[0018] Figure 4 is a schematic diagram of a flow measurement tube in the present invention;

[0019] Figure 5 It is a schematic diagram of the gear installation in the gear installation box of the present invention.

[0020] Description of Figure Numbers:

[0021] 1. Module sealing box 11. Electronic module 12. Lithium battery 2. Module box mounting frame

[0022] 3. Flow measuring tube 31, bracket mounting tube 311, positioning groove 32, reflector bracket

[0023] 321, pipe plug 322, connecting rod 323, positioning block 324, groove 33, reflecting mirror

[0024] 34. Scraper 35. O-ring 36. Metal threaded pressure ring 4. Motor

[0025] 41, motor housing 42, motor cover 5, driving gear 6, driving gear set 7, driven gear

[0026] 71, inner hole 8, worm member 81, annular groove 82, shaft sealing ring 9, gear mounting box

[0027] 91. Cover plate 92. Adjustment hole column DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 5 As shown, an ultrasonic heat meter that is easy to clean automatically includes a module sealing box 1, a module box mounting frame 2 and a flow measuring tube 3, wherein the module sealing box 2 is provided with an electronic module 11 and a lithium battery 12, the flow measuring tube 3 is provided with a bracket mounting tube 31, the bracket mounting tube 31 is sleeved with a reflector bracket 32, the reflector bracket 32 ​​is connected with a reflector 33, and also includes a motor 4, the motor 4 is connected to the electronic module 11 and the lithium battery 12 through wires, wherein the lithium battery 12 supplies power to the motor 4, the electronic module 11 controls the rotation of the motor 4 through program settings, the shaft end of the motor 4 is connected to a driving gear 5, the driving gear 5 is connected to a driving gear set 6, the driving gear set 6 is connected to a driven gear 7, the driven gear 7 is provided with an inner hole 71 that penetrates the driven gear 7 at the center, the inner hole 71 is sleeved with a worm member 8, the worm member 8 has an end external thread in the middle, and the inner hole 71 is provided with a screw thread that is mutually connected with the worm member 8 The matched internal thread is provided with an internal thread through the inner hole 71 on the driven gear 7 to change the axial force so that the worm member 8 can move forward and backward. One end of the worm member 8 passes through the reflector bracket 32 ​​and extends to be connected with the reflector 33. The rotation of the motor 4 drives the driving gear 5 to rotate, and the rotation of the driving gear 5 drives the driving gear set 6 to rotate. The rotation of the driving gear set 6 drives the driven gear 7 to rotate, and the driven gear 7 rotates to drive the worm member 8 to move forward and backward. The movement of the worm member 8 back and forth drives the reflector 33 to move forward and backward. A scraper 34 is provided above the reflector 33. The scraper 34 is arranged on the reflector bracket 32. In the process of the reflector 33 moving back and forth, the scraper 34 reciprocates to scrape the stains on the surface of the reflector 33 for cleaning. The driving gear 5, the driving gear set 6 and the driven gear 7 are all arranged in a gear mounting box 9, and the gear mounting box 9 is arranged close to the bracket mounting tube 31 and is provided with a cover plate 91.

[0031] For the convenience of design and manufacturing, the reflector bracket 32 ​​includes a pipe plug 321 and two connecting rods 322 arranged at the front end of the pipe plug 321. The inner side of the connecting rod 322 is provided with a groove 324 for clamping the reflector 33. The scraper 34 is arranged between the two connecting rods 322 and is arranged close to the upper end surface of the groove 324. Similarly, a slider, a guide rail or other similar complex structures can also be used.

[0032] In order to facilitate fixing the angle of the reflector 33 , a positioning block 323 is provided on the side wall of the pipe plug 321 , and a positioning groove 311 cooperating with the positioning block 323 is provided in the bracket mounting tube 31 .

[0033] In order to enhance the sealing between the reflector bracket 32 ​​and the bracket mounting tube 31 , the rear end of the pipe plug 321 is sequentially covered with an O-ring 35 and a metal threaded pressing ring 36 , and the metal threaded pressing ring 36 is screwed on the bracket mounting tube 31 .

[0034] In order to enhance the sealing between the worm member 8 and the reflector bracket 32 ​​, the worm member 8 is provided with a plurality of annular grooves 81 , and a shaft sealing ring 82 is sleeved on the annular groove 81 . The shaft sealing ring 82 is arranged in the bracket mounting tube 31 .

[0035] In order to lower the height of the gear mounting box 9, an adjusting hole column 92 is provided on the cover plate 91, and the other end of the worm member 8 is arranged in the adjusting hole column 92. At the same time, the adjusting hole column 92 can also play a limiting role.

[0036] To facilitate the installation of the motor 4, the motor 4 is provided with a motor housing 41, which is arranged in the middle of the module box mounting frame 2 and is integrally formed with the gear mounting box 9. It is best to equip it with a motor cover 42, so that the design structure is more compact.

[0037] The working principle of the present invention is as follows: by setting the program of the electronic module 11 to control the motor 4 to rotate alternately forward and reverse, the rotation of the motor 4 drives the active gear 5 to rotate, the rotation of the active gear 5 drives the driving gear set 6 to rotate, the rotation of the driving gear set 6 drives the driven gear 7 to rotate, the rotation of the driven gear 7 drives the worm member 8 to move back and forth, the movement of the worm member 8 back and forth drives the reflector 33 to move back and forth along the groove 324 on the connecting rod 322, and the scraper sheet 34 on the connecting rod 322 is continuously scraped during the repeated movement of the reflector 33, thereby removing the stains on the reflector 33, preventing the stains from precipitating and sticking on the surface of the reflector 33, thereby improving the quality and operation cycle of the product.

[0038] The present invention enables the motor to rotate alternately forward and reverse regularly through the program setting of the electronic module. During the rotation of the motor, the reflector arranged at the end of the worm gear is driven to move forward and backward through the gear set, so that the scraper scrapes the stains on the surface of the reflector back and forth, thereby achieving the effect of removing the stains, avoiding the precipitation and adhesion of the stains on the surface of the reflector, and realizing automatic cleaning of the reflector without disassembling the reflector, reducing the operation and maintenance cost of the heat meter, thereby improving the quality and operation cycle of the product; the present invention has a compact structure and a novel design, and effectively solves the technical problem that scaling of the reflector affects the measurement during the use of the ultrasonic heat meter, which is conducive to market promotion.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An ultrasonic heat meter that is easy to clean automatically, comprising a module sealing box, a module box mounting frame and a flow measurement tube, wherein the module sealing box is provided with an electronic module and a lithium battery, the flow measurement tube is provided with a bracket mounting tube, the bracket mounting tube is sleeved with a reflector bracket, and the reflector bracket is connected to a reflector, characterized in that: It also includes a motor, which is connected to the electronic module and the lithium battery through wires, a driving gear is connected to the motor shaft end, the driving gear is connected to a driving gear set, the driving gear set is connected to a driven gear, the driven gear center is provided with an inner hole that penetrates the driven gear, a worm is sleeved in the inner hole, the worm has an end with an external thread in the middle, and the inner hole is provided with an internal thread that cooperates with the worm, one end of the worm penetrates the reflector bracket and extends to connect the reflector, a scraper is provided above the reflector, and the scraper is arranged on the reflector bracket, the driving gear , the driving gear set and the driven gear are all arranged in a gear mounting box, the gear mounting box is arranged close to the bracket mounting tube and is provided with a cover plate, the reflector bracket includes a pipe plug and two connecting rods arranged at the front end of the pipe plug, the inner side of the connecting rod is provided with a groove for clamping the reflector, the scraper is arranged between the two connecting rods and is arranged close to the upper end surface of the groove, a positioning block is provided on the side wall of the pipe plug, and a positioning groove that cooperates with the positioning block is provided in the bracket mounting tube, and the rear end of the pipe plug is successively covered with an O-ring and a metal threaded pressure ring, and the metal threaded pressure ring is screwed tightly on the bracket mounting tube.

2. An ultrasonic heat meter that is easy to clean automatically according to claim 1, characterized in that: The worm member is provided with a plurality of annular grooves, the annular grooves are covered with shaft sealing rings, and the shaft sealing rings are arranged in the bracket mounting tube.

3. The ultrasonic heat meter that is easy to clean automatically according to claim 1, characterized in that: The cover plate is provided with an adjusting hole column, and the other end of the worm member is arranged in the adjusting hole column, and the adjusting hole column can also play a limiting role.

4. The ultrasonic heat meter that is easy to clean automatically according to claim 1, characterized in that: The motor is sleeved with a motor shell, and the motor shell is arranged in the middle of the module box mounting frame and is integrally formed with the gear mounting box.

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