Rotatable mounting structure of ultrasonic measuring instrument head

Abstract

The utility model discloses a rotatable mounting structure of an ultrasonic measuring instrument head, and belongs to the technical field of ultrasonic flow meters. Comprising a gauge outfit and a box body, the gauge outfit is installed in a boss installation opening formed in the box body, fixing grooves are formed in the two sides of the boss installation opening, the two fixing grooves are the same in specification and penetrated by hexagon socket screws, and the outer surface of the joint of the gauge outfit and the boss installation opening is sleeved with a knurled cap through an anti-pulling rubber sleeve. The rotatable installation structure of the ultrasonic measuring instrument head is simple and convenient to install, installation can be completed only by screwing the bolt and the knurled cap, use is convenient, and the instrument head can be rotated by unscrewing the knurled cap. And a limiting structure is assembled, so that the conditions of overlarge rotation angle, internal wire winding, twisting breakage and the like are prevented. Two sealing structures are adopted, so that the leakage risk is prevented. And the limiting structure adopts internal limiting, so that the overall appearance is simpler, and the situation that the limiting angle is out of range due to forgetting of an operator is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flowmeters, in particular to a rotatable installation structure of an ultrasonic measuring instrument head. Background Art

[0002] Ultrasonic flowmeter refers to a flowmeter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in a stationary medium. It is mainly composed of a transducer and a converter. There are different types such as Doppler method, velocity difference method, beam offset method, noise method and correlation method. Ultrasonic flowmeters can be used for non-contact measurement. Clamp-on transducer ultrasonic flowmeters do not need to be installed by stopping the flow or cutting off the pipe. It only needs to install the transducer outside the existing pipe. This is a unique advantage of ultrasonic flowmeters in industrial flow meters. Therefore, it can be used for mobile (i.e. non-fixed installation) measurement, which is suitable for the evaluation and measurement of pipe network flow conditions.

[0003] Currently, all existing ultrasonic flow meters are integrated ultrasonic flow meters. As an integrated ultrasonic gas measuring instrument, the overall instrument structure is inclined to be integrated, that is, the meter head and the box are fixed and cannot be moved or rotated. When the on-site installation direction deviates, it is difficult to adjust when the installation space is insufficient, which greatly affects the convenience of installation. Utility Model Content

[0004] The utility model aims to provide a rotatable installation structure for an ultrasonic measuring instrument head, which solves the problem that a conventional meter head cannot be rotated and the rotatable meter head has insufficient limit.

[0005] To achieve the above-mentioned purpose, the utility model provides a rotatable mounting structure of an ultrasonic measuring instrument head, comprising a meter head and a box body, wherein the meter head is mounted in a boss mounting opening opened in the box body, and fixing grooves are opened on both sides of the boss mounting opening. The two fixing grooves have the same specifications and are penetrated by hexagon socket screws, and the outer surface of the connection between the meter head and the boss mounting opening is provided with a knurled cap sleeve through an anti-pullout rubber sleeve.

[0006] Preferably, an annular transverse groove is provided on the outer surface of the meter head at the same height as the two fixing grooves, and the annular transverse groove is adaptably connected to the hexagon socket screw passing through the fixing grooves.

[0007] Preferably, a vertical groove is provided at the bottom of the meter head, and the vertical groove is a 180° annular groove, and the vertical groove is adaptably connected to a slot provided on the inner bottom surface of the boss mounting opening.

[0008] Preferably, O-rings are installed on both sides of the outer surface of the boss mounting opening, and the O-rings are located above the fixing groove.

[0009] Preferably, the fixing groove is a "convex" groove structure.

[0010] Preferably, the height of the gauge head is greater than the height of the boss mounting opening.

[0011] Therefore, the utility model adopts a rotatable installation structure of an ultrasonic measuring instrument head of the above structure, which has the following beneficial effects:

[0012] (1) The utility model is easy to install and can be installed by simply screwing on the bolts and the knurled cap. It is also easy to use and can rotate the meter head by loosening the knurled cap.

[0013] (2) The utility model is equipped with a limit structure to prevent excessive rotation angle, internal wire winding, twisting and breaking, etc. Two sealing structures prevent leakage risks. The limit structure is internally limited, the overall appearance is simpler, and the limit angle will not exceed the range due to the operator's forgetfulness.

[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the exploded structure of a rotatable installation structure of an ultrasonic measuring instrument head of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the installation of the meter head and the box body of an ultrasonic measuring instrument head rotatable installation structure of the utility model;

[0017] Reference numerals

[0018] 1. Knurled cap, 2. Anti-pullout rubber, 3. Fixing groove, 4. Head, 5. O-ring, 6. Hexagon socket screw, 7. Box body, 8. Boss mounting port, 41. Annular horizontal groove, 42. Vertical groove, 71. Card slot. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Example

[0022] like Figure 1-2 As shown, the utility model provides a rotatable mounting structure of an ultrasonic measuring instrument head, including a meter head 4 and a box body 7. The meter head 4 is mounted in a boss mounting opening 8 opened in the box body 7. Fixing grooves 3 are opened on both sides of the boss mounting opening 8. The two fixing grooves 3 have the same specifications and are penetrated by hexagon socket screws 6. The outer surface of the connection between the meter head 4 and the boss mounting opening 8 is provided with a knurled cap sleeve 1 through an anti-pullout rubber sleeve 2.

[0023] An annular transverse groove 41 is provided on the outer surface of the meter head 4 at the same height as the two fixing grooves 3 , and the annular transverse groove 41 is adapted to be connected with the hexagon socket screw 6 penetrating the fixing groove 3 .

[0024] A vertical groove 42 is provided at the bottom of the meter head 4 . The vertical groove 42 is a 180° annular groove. The vertical groove 42 is adapted to be connected with a clamping groove 71 provided on the inner bottom surface of the boss mounting opening 8 .

[0025] O-rings 5 ​​are installed on both sides of the outer surface of the boss mounting opening 8, and the O-rings 5 ​​are located above the fixing groove 3. The fixing groove 3 is a "convex" groove structure. The height of the meter head 4 is greater than the height of the boss mounting opening 8.

[0026] Working principle: a circular transverse groove 41 is designed on the meter head 4, and its position is consistent with the fixing groove 3 of the boss mounting port 8 after the box body 7 is assembled. A 180-degree circular vertical groove 42 is cut at the contact position with the box body 7 below the meter head 1 to cooperate with the slot 71 on the box body 7; the knurled cap 1 is mainly used to tighten the anti-pullout rubber 2, and is threadedly connected to the box body 7. After tightening, it blocks the screw holes on the box body 1 to maintain the appearance; the anti-pullout rubber 2 is mainly used to deform and fix the meter after the knurled cap 1 is tightened Head 4, so that the meter head 4 is not easy to rotate, and has a waterproof sealing effect, etc.; the O-ring 5 is used to seal the meter head 4 and the boss mounting port 8 to prevent gas leakage, and is accompanied by a certain damping feeling, which improves the feel during rotation; the box body 7 is the main part for installing the meter head 4 and fixing the meter head 4. There is a protruding card groove 71 in the matching part of the box body 7 and the meter head 4, which cooperates with the vertical groove 42 below the meter head 4 to limit the position. Fixing grooves 3 are provided on both sides of the protruding boss mounting port 8 of the box body 7 for installing bolts to fix the position of the meter head 4.

[0027] The installation process is as follows:

[0028] a. Before installation, pre-install the knurled cap 1 and the anti-pullout rubber 2 on the neck of the 4 gauge head;

[0029] b. Place the O-ring 5 into the O-ring groove at the boss mounting opening 8 on the housing 7;

[0030] c. Install the pre-assembled part into the main box 7, align the groove under the meter head with the protruding part of the box, and rotate the meter head to one end point;

[0031] d. Screw the hexagon socket screw 6 through the fixing groove 3 on the box 7, and screw it through the boss mounting opening 8 into the annular transverse groove 41 of the meter head 4. (Note: There are requirements for the screw length. When the hexagon socket screw is fully screwed in, it will not support the bottom of the meter head groove).

[0032] e. After tightening the hexagon socket screw 6, install the previously pre-installed anti-pullout rubber 2 and knurled cap 1 downwards, tighten the knurled cap 1, and the meter head 4 is installed.

[0033] f. If the meter head 4 needs to be rotated, just loosen the knurled cap 1, and then the meter head 4 can be rotated, and the meter head 4 and the box body 7 are limited at the joint;

[0034] g. When it is necessary to remove the meter head 4, disconnect all the wiring above the meter head 4, unscrew the knurled cap 1 and the anti-pullout rubber 2, remove the hexagon socket screw 6 and the meter head 4 can be removed.

[0035] Therefore, the utility model adopts the above-mentioned rotatable installation structure of the ultrasonic measuring instrument head, which is easy to install. It only needs to screw on the bolts and knurled cap to complete the installation. It is also easy to use. The meter head can be rotated by loosening the knurling. A limit structure is assembled to prevent excessive rotation angle, internal wire winding, twisting and breaking, etc. Two sealing structures prevent leakage risks. The limit structure is internally limited, the overall appearance is simpler, and the limit angle will not exceed the range due to the operator's forgetfulness.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A rotatable mounting structure for an ultrasonic measuring instrument head, characterized in that : It includes a meter head and a box body, the meter head is installed in a boss mounting opening opened in the box body, fixing grooves are opened on both sides of the boss mounting opening, the two fixing grooves have the same specifications and are penetrated by hexagon socket screws, and the outer surface of the connection between the meter head and the boss mounting opening is provided with a knurled cap through an anti-pullout rubber sleeve.

2. The rotatable mounting structure of an ultrasonic measuring instrument head according to claim 1, characterized in that: An annular transverse groove is provided on the outer surface of the meter head at the same height as the two fixing grooves, and the annular transverse groove is adapted to be connected with the hexagon socket screw penetrating the fixing grooves.

3. The rotatable mounting structure of an ultrasonic measuring instrument head according to claim 1, characterized in that: A vertical groove is provided at the bottom of the meter head, and the vertical groove is a 180° annular groove, and the vertical groove is adapted to be connected with a card groove provided on the inner bottom surface of the boss mounting opening.

4. The rotatable mounting structure of an ultrasonic measuring instrument head according to claim 1, characterized in that: O-rings are installed on both sides of the outer surface of the boss mounting opening, and the O-rings are located above the fixing groove.

5. The rotatable mounting structure of an ultrasonic measuring instrument head according to claim 1, characterized in that: The fixing groove is a "convex" groove structure.

6. The rotatable mounting structure of an ultrasonic measuring instrument head according to claim 1, characterized in that: The height of the gauge head is greater than the height of the boss mounting opening.

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