Water flow sensor pressing tool

Abstract

The utility model provides a water flow sensor pressing tool, and belongs to the technical field of water flow sensor production equipment. Comprising a base, a cantilever is fixed to the base, and a gear and a rack which are meshed with each other are arranged in the cantilever; the gear is rotationally connected with the cantilever, a rocker is fixed to a rotating shaft of the gear, and the rocker can be swung to drive the rack to slide up and down through the gear. A pressing head is fixed to the lower end of the rack, a rubber pad is fixed to the base, a fixing base is fixed to the top of the rubber pad, and a fixing hole is formed in the fixing base and located under the pressing head. An end plate is arranged on the cantilever, a sliding groove is formed in the end plate, and a sliding rail matched with the sliding groove is fixed to the rack. The device has the advantages of high yield, time saving, labor saving and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of water flow sensor production equipment and relates to a water flow sensor pressing tool. Background Art

[0002] A water flow sensor refers to a water flow sensing instrument that outputs pulse signals or current, voltage and other signals by sensing water flow. The output of this signal is in a certain linear proportion to the water flow, and has corresponding conversion formulas and comparison curves. Therefore, it can be used for water control management and flow calculations.

[0003] The structure of the small water flow sensor produced by our company is as follows Figure 1 As shown, it includes a housing 11 and a compression tube 12. When assembling, it is necessary to first install the impeller and other components in the housing 11, then arrange a sealing ring on the outer surface of the compression tube 12, and finally install the compression tube 12 on the top of the housing 11 through interference fit. Therefore, this process requires the assembler to exert a lot of strength to complete, which is not only time-consuming and labor-intensive, but also easy to cause damage to parts due to excessive strength or deviation from the direction. Utility Model Content

[0004] The purpose of the utility model is to provide a water flow sensor pressing tool to solve the above problems in the existing technology, so that it can assist workers to complete the pressing and assembling of the water flow sensor, thereby saving time and labor and improving the yield.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a water flow sensor pressing tool, characterized in that the tool includes a base, a cantilever is fixed on the base, and a gear and a rack that mesh with each other are arranged in the cantilever; the rotation of the gear is connected with the rotation of the cantilever, and a rocker is fixed on the rotating shaft of the gear, and the swinging rocker can drive the rack to slide up and down through the gear; a pressure head is fixed at the lower end of the rack, a rubber pad is fixed to the base, a fixing seat is fixed on the top of the rubber pad, and a fixing hole is opened on the fixing seat just below the pressure head; an end plate is provided on the cantilever, a slide groove is opened on the end plate, and a slide rail matching the slide groove is fixed on the rack.

[0006] Preferably, a baffle is fixed to the top of the rack, a limiting hole is provided on the baffle, and a tensioning bolt is inserted into the limiting hole; the screw end of the tensioning bolt is threadedly connected to the top of the cantilever, and a spring is sleeved on the tensioning bolt, which rests between the top of the cantilever and the lower end of the baffle.

[0007] Preferably, the baffle is also threadedly connected with a plurality of adjusting bolts, and a buffer pad is provided at the bottom end of each adjusting bolt.

[0008] The utility model has the advantages:

[0009] 1. In the tooling, a rubber pad is provided at the bottom of the fixing seat, which plays a supporting role for the lower end of the shell, thereby effectively avoiding damage caused by hard contact between the lower end of the shell and other structures during pressing, thereby improving the yield rate.

[0010] 2. This tool adopts the gear rack mechanism plus the lever principle, making the press-fit assembly operation more time-saving and labor-saving.

[0011] 3. In this tool, the presence of the spring, the pull rod and the baffle enables the pressed rack to return automatically, thereby making the tool more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the water flow sensor.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of this tooling.

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of this tooling.

[0015] In the figure, 11, shell; 12, clamping tube; 21, base; 22, cantilever; 23, gear; 24, rack; 241, pressure head; 242, slide rail; 243, baffle; 244, tension bolt; 245, spring; 246, adjusting bolt; 247, buffer pad; 25, rocker; 26, rubber pad; 27, fixing seat; 271, fixing hole; 28, end plate. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 2 and Figure 3 As shown, a water flow sensor pressing tooling includes a base 21, a cantilever 22 is fixed on the base 21, and a gear 23 and a rack 24 that mesh with each other are arranged in the cantilever 22; the gear 23 is rotationally connected to the cantilever 22, and a rocker 25 is fixed on the rotating shaft of the gear 23, and the swinging rocker 25 can drive the rack 24 to slide up and down through the gear 23; a pressure head 241 is fixed to the lower end of the rack 24, a rubber pad 26 is fixed to the base 21, a fixing seat 27 is fixed to the top of the rubber pad 26, and a fixing hole 271 is opened on the fixing seat 27 just below the pressure head 241; an end plate 28 is provided on the cantilever 22, a slide groove is opened on the end plate 28, and a slide rail 242 that matches the slide groove is fixed on the rack 24.

[0018] Working principle: When we use this tooling to press-fit the water flow sensor, we can first place the shell 11 with the impeller and other components installed in the fixing hole 271 on the fixing seat 27. The inner diameter of the fixing hole 271 fits with the outer diameter box of the lower part of the shell 11, so that the shell 11 can always remain in a vertical state inside it; then, we place the compression tube 12 with the sealing ring on the shell 11 in a vertical state, and align the lower end with the installation hole on the shell 11; finally, we drive the rack 24 downward by swinging the rocker 25, so that the pressure head 241 on it acts on the compression tube 12, thereby realizing the compression assembly between the compression tube 12 and the shell 11.

[0019] In this tooling, the fixing hole 271 on the fixing seat 27 serves to limit the shell 11, keeping it vertical, and the rubber pad 26 at the bottom of the fixing seat 27 serves to support the lower end of the shell 11, thereby effectively avoiding damage caused by hard contact between the lower end of the shell 11 and other structures during pressing, thereby improving the yield rate. In addition, this tooling adopts the gear 23 rack 24 mechanism plus the lever principle, making the pressing and assembly operation more time-saving and labor-saving. In addition, the presence of the slide groove and the slide rail 242 limits the movement path of the rack 24, thereby effectively avoiding damage to the product due to its skewness, further improving the yield rate.

[0020] like Figure 2 and Figure 3 As shown, a baffle 243 is fixed on the top of the rack 24, and a limit hole is provided on the baffle 243, and a tension bolt 244 is inserted in the limit hole; the screw end of the tension bolt 244 is threadedly connected to the top of the cantilever 22, and a spring 245 is sleeved on the tension bolt 244, and the spring 245 rests between the top of the cantilever 22 and the lower end of the baffle 243. During the press-fit assembly, the rack 24 moves downward, and the baffle 243 at its top will compress the spring 245. Therefore, after the staff completes the press-fit, they only need to let go, and driven by the restoring force of the spring 245, the baffle 243 will drive the rack 24 upward and return to the initial position, which makes the use of this tooling more convenient.

[0021] like Figure 2 As shown, the baffle plate 243 is also threadedly connected with a plurality of adjusting bolts 246, and a buffer pad 247 is provided at the bottom end of each adjusting bolt 246. The water flow sensor is assembled at a certain height. If it is pressed down further, it is easy to be damaged. Therefore, we set a plurality of adjusting bolts 246 on the baffle plate 243 to limit the downward range of the rack 24. And a buffer pad 247 is fixed at the lower end of each adjusting bolt 246, which can effectively prevent the top of the cantilever 22 from being damaged by the continuous impact of the adjusting bolt 246, thereby extending its service life.

[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A water flow sensor pressing tool, characterized in that: The tooling comprises a base (21), a cantilever (22) is fixed on the base (21), a gear (23) and a rack (24) meshing with each other are arranged in the cantilever (22); the gear (23) is rotationally connected with the cantilever (22), and a rocker (25) is fixed on the rotating shaft of the gear (23), and the rocker (25) can drive the rack (24) to slide up and down through the gear (23); a pressure head (241) is fixed at the lower end of the rack (24), a rubber pad (26) is fixed on the base (21), a fixing seat (27) is fixed on the top of the rubber pad (26), and a fixing hole (271) is opened on the fixing seat (27) just below the pressure head (241); an end plate (28) is arranged on the cantilever (22), a slide groove is opened on the end plate (28), and a slide rail (242) matched with the slide groove is fixed on the rack (24).

2. According to claim 1, a water flow sensor pressing tool is characterized in that: A baffle (243) is fixed on the top of the rack (24), a limiting hole is provided on the baffle (243), a tensioning bolt (244) is inserted into the limiting hole; the screw end of the tensioning bolt (244) is threadedly connected to the top of the cantilever (22), and a spring (245) is sleeved on the tensioning bolt (244), and the spring (245) is pressed between the top of the cantilever (22) and the lower end of the baffle (243).

3. The water flow sensor pressing tooling according to claim 2, characterized in that: The baffle plate (243) is also threadedly connected with a plurality of adjusting bolts (246), and a buffer pad (247) is provided at the bottom end of each adjusting bolt (246).

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