Auxiliary calibration table for transmitter of float flowmeter

Abstract

The utility model discloses a float flowmeter transmitter auxiliary calibration bench, comprising a base plate, two sides of the top surface of the base plate are fixedly connected with side plates, the top surfaces of the side plates are fixedly connected with a top plate used for placing a metal float flowmeter to be calibrated, the upper surface of the top plate is provided with an outer diameter line, and the outer diameter line is provided with an inner diameter line. A center hole is formed in the position, located at the circle center of the outer diameter line, of the upper surface of the top plate, and a flexible lifting mechanism is arranged on the top plate and comprises a lead screw, a lead screw nut, a first transverse hole bevel gear, a second transverse hole bevel gear and the like. According to the metal float flowmeter calibration device, rapid, accurate and stable calibration of a floater in a metal float flowmeter is successfully achieved, through arrangement of a first transverse hole bevel gear and a second transverse hole bevel gear, lifting of a lead screw is finer, the accuracy of the metal float flowmeter calibration device is further enhanced, the structure arrangement is simple and efficient, operation is convenient, time and labor are saved, and the metal float flowmeter calibration device is suitable for popularization and application. And popularization and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary calibration platforms, in particular to an auxiliary calibration platform for a float flowmeter transmitter. Background Art

[0002] Metal float flowmeter, also known as metal rotor flowmeter, has the advantages of simple structure, reliable operation, wide application range, high accuracy and easy installation. It is often used as an instrument to measure low flow rate and small flow.

[0003] At present, the panel of the transmitter of the metal float flowmeter is prone to display mismatch during remote transmission or needs to be calibrated when the transmitter is replaced. During the calibration process, the metal float needs to be manually pushed to the position to be indicated. During this process, the instability of the float will cause a large deviation in the calibration data, and another person is required to assist in the calibration process, which increases the waste of manpower.

[0004] In view of the above situation, a device is proposed which can calibrate the metal float flowmeter transmitter more easily and accurately by one person. Utility Model Content

[0005] The utility model aims to provide a float flowmeter transmitter auxiliary calibration table to solve the problem of calibration deviation and increased manpower consumption caused by manual instability in manually calibrating a metal float flowmeter proposed in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a float flowmeter transmitter auxiliary calibration bench, comprising a bottom plate, side plates are fixedly connected to both sides of the top surface of the bottom plate, a top plate is fixedly connected to the top surface of the side plate, and is used to place a metal float flowmeter to be calibrated, an outer diameter line is provided on the upper surface of the top plate, a center hole is opened on the upper surface of the top plate at the center of the outer diameter line, and a flexible lifting mechanism is provided on the top plate, which is used to lift the float of the metal float flowmeter.

[0007] Preferably, the flexible lifting mechanism includes a screw nut rotatably connected to the bottom of the top plate, the screw nut is threadedly connected with a screw, the screw passes through a center hole, a vertical hole bevel gear is arranged at the bottom of the screw nut, a side plate on one side of the top of the bottom plate is rotatably connected with a coarse adjustment horizontal axis, and a side plate on the other side of the top of the bottom plate is rotatably connected with a fine adjustment horizontal axis, one end of the coarse adjustment horizontal axis facing the vertical hole bevel gear is sleeved with a first horizontal hole bevel gear, and one end of the fine adjustment horizontal axis facing the vertical hole bevel gear is sleeved with a second horizontal hole bevel gear, a protrusion is fixedly connected to the inner side wall of the center hole, a narrow slot is opened on the side of the screw, and the protrusion extends into the narrow slot to prevent the screw from rotating.

[0008] Preferably, the first transverse hole bevel gear is meshed with the vertical hole bevel gear, and the second transverse hole bevel gear is meshed with the vertical hole bevel gear.

[0009] Preferably, one end of the fine-adjustment horizontal axis away from the second transverse hole bevel gear is located on the outside of the side plate, and one end of the fine-adjustment horizontal axis located on the outside of the side plate is provided with a fine-adjustment knob.

[0010] Preferably, one end of the coarse adjustment horizontal axis away from the first transverse hole bevel gear is located on the outside of the side plate, and one end of the coarse adjustment horizontal axis located on the outside of the side plate is provided with a coarse adjustment knob.

[0011] Preferably, the height to which the screw rod is lifted and lowered when the first transverse hole bevel gear rotates one circle is higher than the height to which the screw rod is lifted and lowered when the second transverse hole bevel gear rotates one circle, and the vertical hole bevel gear is coaxial with the screw rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the device utilizes the rotation of the screw nut to drive the flexible lifting and lowering of the screw, successfully realizing the fast, accurate and stable calibration of the float in the metal float flowmeter, and through the setting of the first transverse hole bevel gear and the second transverse hole bevel gear, the lifting and lowering of the screw is more precise, further enhancing the accuracy of the calibration of the metal float flowmeter by the device, the structural setting is simple and efficient, easy to operate, saving time and effort, and suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structural view of the utility model;

[0014] Figure 2 It is a top view of the top plate in the utility model;

[0015] Figure 3 This is the working state diagram of the utility model;

[0016] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0017] In the figure: 1. bottom plate; 101. side plate; 102. top plate; 103. center hole; 104. outer diameter line; 105. bump; 106. narrow slit; 2. lead screw; 201. lead screw nut; 202. fine adjustment horizontal axis; 203. coarse adjustment horizontal axis; 204. first horizontal hole bevel gear; 205. second horizontal hole bevel gear; 206. vertical hole bevel gear; 3. metal float flowmeter. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-4 As shown, the utility model provides a technical solution for a float flowmeter transmitter auxiliary calibration station:

[0020] A float flowmeter transmitter auxiliary calibration bench comprises a bottom plate 1, side plates 101 are fixedly connected to both sides of the top surface of the bottom plate 1, a top plate 102 is fixedly connected to the top surface of the side plate 101, and is used to place a metal float flowmeter 3 to be calibrated, an outer diameter line 104 is provided on the upper surface of the top plate 102, a center hole 103 is opened on the upper surface of the top plate 102 at the center of the outer diameter line 104, and a flexible lifting mechanism is provided on the top plate 102, which is used to lift the float of the metal float flowmeter 3.

[0021] It should be noted that the setting of the outer diameter line 104 allows the flange at the bottom of the metal float flowmeter 3 to be aligned with the outer diameter line 104, thereby ensuring that the float of the metal float flowmeter 3 is directly above the screw rod 2, waiting for calibration.

[0022] Furthermore, the flexible lifting mechanism includes a screw nut 201 rotatably connected to the bottom of the top plate 102, the screw nut 201 is threadedly connected with the screw 2, the screw 2 passes through the center hole 103, and a vertical hole bevel gear 206 is arranged at the bottom of the screw nut 201, the side plate 101 on one side of the top of the bottom plate 1 is rotatably connected with the coarse adjustment horizontal axis 203, and the side plate 101 on the other side of the top of the bottom plate 1 is rotatably connected with the fine adjustment horizontal axis 202, and the end of the coarse adjustment horizontal axis 203 facing the vertical hole bevel gear 206 is sleeved with the first horizontal hole bevel gear 204, and the end of the fine adjustment horizontal axis 202 facing the vertical hole bevel gear 206 is sleeved with the second horizontal hole bevel gear 205, the inner side wall of the center hole 103 is fixedly connected with a protrusion 105, and a narrow slot 106 is opened on the side of the screw 2, and the protrusion 105 extends into the narrow slot 106 to prevent the screw 2 from rotating.

[0023] The setting of the flexible lifting mechanism utilizes the rotation of the screw nut 201 to drive the flexible lifting of the screw 2, successfully realizing the fast, accurate and stable calibration of the float in the metal float flowmeter 3, and through the setting of the first transverse hole bevel gear 204 and the second transverse hole bevel gear 205, the lifting of the screw 2 is more precise, further enhancing the accuracy of the calibration of the metal float flowmeter 3 by the device. The structural setting is simple and efficient, easy to operate, saving time and effort, and suitable for popularization and use.

[0024] Among them, it should be supplemented that the first transverse hole bevel gear 204 is meshed with the vertical hole bevel gear 206, and the second transverse hole bevel gear 205 is meshed with the vertical hole bevel gear 206. The height at which the first transverse hole bevel gear 204 rotates one circle to drive the screw rod 2 to rise and fall is higher than the height at which the second transverse hole bevel gear 205 rotates one circle to drive the screw rod 2 to rise and fall. The vertical hole bevel gear 206 is coaxial with the screw rod 2.

[0025] Among them, it should be additionally explained that the end of the fine-adjustment horizontal axis 202 away from the second transverse hole bevel gear 205 is located on the outside of the side plate 101, and the end of the fine-adjustment horizontal axis 202 located on the outside of the side plate 101 is provided with a fine-adjustment knob, and the end of the coarse-adjustment horizontal axis 203 away from the first transverse hole bevel gear 204 is located on the outside of the side plate 101, and the end of the coarse-adjustment horizontal axis 203 located on the outside of the side plate 101 is provided with a coarse-adjustment knob.

[0026] Working principle: Refer to Figure 3 As shown, when using the device, first align the flange at the bottom of the metal float flowmeter 3 with the outer diameter line 104 and fix it on the upper surface of the top plate 102. The setting of the outer diameter line 104 makes the float of the metal float flowmeter 3 accurately face the center hole 103. At this time, the user only needs to rotate the coarse adjustment knob to make the coarse adjustment horizontal axis 203 start to rotate, thereby driving the first horizontal hole bevel gear 204 to start to rotate. Since the first horizontal hole bevel gear 204 is meshed with the vertical hole bevel gear 206, the vertical hole bevel gear 206 starts to rotate and drives the screw nut 201 to start to rotate. Since the screw nut 201 is threadedly connected to the screw 2, the protrusion 105 extends into the narrow gap 106 to prevent the screw 2 from rotating, and finally the screw 2 moves upward to lift the float of the metal float flowmeter 3. When the float reaches the vicinity of the standard position, it can be switched to rotating the fine adjustment knob to make the fine adjustment horizontal axis 202 start to rotate. Similarly, slowly adjust the position of the float until the float is in the standard position.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A float flowmeter transmitter auxiliary calibration table, comprising a bottom plate (1), the top surface of the bottom plate (1) being fixedly connected to side plates (101) on both sides, the top surface of the side plate (101) being fixedly connected to a top plate (102), for placing a metal float flowmeter (3) to be calibrated, characterized in that: The upper surface of the top plate (102) is provided with an outer diameter line (104), and a center hole (103) is opened on the upper surface of the top plate (102) at the center of the outer diameter line (104). The top plate (102) is provided with a flexible lifting mechanism for lifting the float of the metal float flowmeter (3).

2. The auxiliary calibration platform for a float flowmeter transmitter according to claim 1 is characterized in that: The flexible lifting mechanism comprises a screw nut (201) rotatably connected to the bottom of the top plate (102), the screw nut (201) being threadedly connected to a screw (2), the screw (2) passing through a center hole (103), a vertical hole bevel gear (206) being arranged at the bottom of the screw nut (201), a coarse adjustment horizontal axis (203) being rotatably connected to the side plate (101) on one side of the top of the bottom plate (1), and a fine adjustment horizontal axis (203) being rotatably connected to the side plate (101) on the other side of the top of the bottom plate (1). (202), one end of the coarse adjustment horizontal shaft (203) facing the vertical hole bevel gear (206) is sleeved with a first horizontal hole bevel gear (204), one end of the fine adjustment horizontal shaft (202) facing the vertical hole bevel gear (206) is sleeved with a second horizontal hole bevel gear (205), the inner side wall of the center hole (103) is fixedly connected with a protrusion (105), a narrow slit (106) is opened on the side of the screw rod (2), and the protrusion (105) extends into the narrow slit (106) to prevent the screw rod (2) from rotating.

3. The auxiliary calibration platform for a float flowmeter transmitter according to claim 2 is characterized in that: The first transverse hole bevel gear (204) meshes with the vertical hole bevel gear (206), and the second transverse hole bevel gear (205) meshes with the vertical hole bevel gear (206).

4. The auxiliary calibration platform for a float flowmeter transmitter according to claim 3 is characterized in that: One end of the fine adjustment horizontal axis (202) away from the second transverse hole bevel gear (205) is located outside the side plate (101), and one end of the fine adjustment horizontal axis (202) located outside the side plate (101) is provided with a fine adjustment knob.

5. The auxiliary calibration platform for a float flowmeter transmitter according to claim 4 is characterized in that: One end of the coarse adjustment horizontal axis (203) away from the first transverse hole bevel gear (204) is located outside the side plate (101), and one end of the coarse adjustment horizontal axis (203) located outside the side plate (101) is provided with a coarse adjustment knob.

6. The auxiliary calibration platform for a float flowmeter transmitter according to claim 3 is characterized by: The height at which the screw rod (2) is lifted or lowered when the first transverse hole bevel gear (204) rotates one circle is higher than the height at which the screw rod (2) is lifted or lowered when the second transverse hole bevel gear (205) rotates one circle, and the vertical hole bevel gear (206) is coaxial with the screw rod (2).

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