An electrode removal device for electric contact water level gauge

Abstract

The utility model relates to an electrode removal device for an electric contact water level gauge, comprising a support frame and a shell connected to the support frame, the front end of the support frame is slidably connected to a pipeline clamping unit, the rear end of the support frame is rotatably provided with a rotating nut, a driving screw is threadedly provided inside the rotating nut, the driving screw passes through the support frame and is connected to an electrode fixing unit located at the center of the support frame, the rotating nut is connected to the driving unit located in the shell, a handle is fixedly provided at the lower end of the shell, and a switch is provided on the handle. The utility model improves work efficiency, not only can the electrode of the water level gauge be easily removed, but also the electrode is well protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrode extraction, and in particular relates to an electrode extraction device for an electric contact water level gauge. Background Art

[0002] After long-term use of the pipeline, some water rust will be attached to the electrode of the electric contact water level gauge, which will cause the current of the electrode that is not immersed in water to be turned on, resulting in a false water level, causing misjudgment to the operator. Therefore, during the boiler maintenance every year, thermal maintenance personnel need to remove the electrode from the electric contact water level gauge for wiping or replacement. Because the graphite pad extrusion method is used to prevent steam leakage from the drum when installing the water level gauge electrode in our factory, it is very difficult to remove it. The previous method was: first use a wrench to loosen the nut of the water level gauge electrode little by little, then pry it out with a screwdriver, and gently knock it out with a hammer. It is time-consuming and labor-intensive and easy to damage the electrode. Two people can only maintain the electric contact water level gauge electrode of one furnace every day, which affects the maintenance progress! Utility Model Content

[0003] (I) Purpose of the utility model

[0004] In order to overcome the above shortcomings, the purpose of the utility model is to provide an electrode removal device for an electric contact water level gauge to solve the above technical problems.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0007] An electrode removal device for an electric contact water level gauge comprises a support frame and a shell connected to the support frame, the front end of the support frame is slidably connected to a pipeline clamping unit, the rear end of the support frame is rotatably provided with a rotating nut, a driving screw is threadedly provided in the rotating nut, the driving screw passes through the support frame and is connected to an electrode fixing unit located at the center of the support frame, the rotating nut is connected to the driving unit located in the shell, and a handle is fixedly provided at the lower end of the shell, and a switch is provided on the handle.

[0008] Preferably, the pipeline clamping unit includes a clamping block, a front end of the clamping block is provided with a clamping groove adapted to the pipeline, a rear end of the clamping block is provided with a connecting rod, a front end of the support frame is provided with a connecting groove corresponding to the connecting rod, and a connecting spring is provided in the connecting groove.

[0009] Preferably, the electrode fixing unit includes a rotating top plate rotatably connected to the driving screw, the rotating top plate is provided with an outer sleeve corresponding to the water level gauge tube, the outer sleeve is provided with a tie rod nut corresponding to the threaded rod of the electrode, and the tie rod nut is fixedly mounted on the rotating top plate.

[0010] Preferably, a rotating pattern is provided on the side wall of the rotating top plate.

[0011] Preferably, the inner wall diameter of the outer sleeve is 0.1-1 cm larger than the outer wall diameter of the water level gauge tube, and the outer sleeve is transparent.

[0012] Preferably, the driving unit comprises a clamping sleeve that drives the rotating nut to rotate, and the clamping sleeve is connected to the driving motor.

[0013] Beneficial effects:

[0014] When the electrode needs to be taken out from the water level gauge tube, first put the outer sleeve on the water level gauge tube. When the pull rod nut is observed to be in contact with the electrode's screw rod through the outer sleeve, turn the rotating top plate to screw the pull rod nut with the electrode's screw rod. At this time, the clamping block is against the main pipeline, and the connecting spring is continuously compressed. By pressing the switch, the drive motor drives the rotating nut to rotate through the clamping sleeve, so that the drive screw moves backward into the clamping sleeve, and continuously drives the electrode to extend out of the water level gauge tube. It improves work efficiency, not only can the electrode of the water level gauge be easily taken out, but also provides good protection for the electrode. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a top view of the structure according to one embodiment of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the following is a detailed description of the embodiment and the attached drawings. Figure 1-2 , the utility model is further described in detail. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] The utility model provides an electrode removal device for an electric contact water level gauge, comprising a support frame 4 and a shell 7 connected to the support frame 4, the front end of the support frame 4 is slidably connected to a pipeline clamping unit, the pipeline clamping unit comprises a clamping block 1, the front end of the clamping block 1 is provided with a clamping slot 15 adapted to the pipeline, the setting of the clamping slot can be more closely fitted with the main pipeline of the electric contact water level gauge to improve a more stable supporting force, the rear end of the clamping block 1 is provided with a connecting rod 2, the front end of the support frame 4 is provided with a connecting groove corresponding to the connecting rod 2, and a connecting spring 3 is provided in the connecting groove. The front end of the support frame 4 is provided with a retractable pipeline clamping unit, when the tie rod nut 13 is connected to the screw rod of the electrode, the support frame 4 continuously moves forward, so that the connecting rod 2 of the pipeline clamping unit continuously extends into the connecting groove, and the connecting spring 3 at this time is in a continuously compressed state, which can more effectively achieve the supporting effect and prevent damage to the electrode when the electrode is taken out.

[0019] A rotating nut 5 is rotatably provided at the rear end of the support frame 4, and a driving screw 11 is threadedly provided inside the rotating nut 5. The driving screw 11 passes through the support frame 4 and is connected to an electrode fixing unit located at the center of the support frame 4. The electrode fixing unit includes a rotating top plate 12 rotatably connected to the driving screw 11, and a rotating pattern is provided on the side wall of the rotating top plate. The setting of the rotating pattern can facilitate the rotation of the staff, thereby driving the pull rod nut fixed to the rotating top plate to rotate, so as to facilitate the connection of the electrode fixing unit with the screw rod of the electrode.

[0020] The rotating top plate 12 is provided with an outer sleeve 14 corresponding to the water level gauge tube. The inner wall diameter of the outer sleeve 14 is 0.1-1 cm larger than the outer wall diameter of the water level gauge tube, that is, the outer sleeve is slightly larger than the tube wall of the water level gauge tube, so as to ensure that the tie rod nut 13 is more accurately connected to the screw rod of the electrode. The outer sleeve 14 is transparent, which is more convenient for observation and operation. The tie rod nut 13 corresponding to the screw rod of the electrode is arranged inside the outer sleeve 14, and the tie rod nut 3 is fixedly installed on the rotating top plate 12.

[0021] The rotating nut 5 is connected to a driving unit located in a housing 7, and the driving unit includes a clamping sleeve 6 that drives the rotating nut 5 to rotate, and the clamping sleeve 6 is connected to a driving motor 8. A handle 9 is fixedly provided at the lower end of the housing 7, and a switch 10 is provided on the handle 9, and the switch 10 is electrically connected to the driving motor 8.

[0022] When the electrode needs to be taken out from the water level gauge tube, first put the outer sleeve on the water level gauge tube. When the pull rod nut is observed to be in contact with the electrode's screw rod through the outer sleeve, turn the rotating top plate to screw the pull rod nut with the electrode's screw rod. At this time, the clamping block is against the main pipeline, and the connecting spring is continuously compressed. By pressing the switch, the drive motor drives the rotating nut to rotate through the clamping sleeve, so that the drive screw moves backward into the clamping sleeve, and continuously drives the electrode to extend out of the water level gauge tube. It improves work efficiency, not only can the electrode of the water level gauge be easily taken out, but also provides good protection for the electrode.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrode removal device for an electric contact water level gauge, characterized in that: It includes a support frame and a shell connected to the support frame, the front end of the support frame is slidably connected to the pipeline clamping unit, the rear end of the support frame is rotatably provided with a rotating nut, a driving screw is threadedly provided in the rotating nut, the driving screw passes through the support frame and is connected to the electrode fixing unit located at the center of the support frame, the rotating nut is connected to the driving unit located in the shell, and a handle is fixedly provided at the lower end of the shell, and a switch is provided on the handle.

2. The electrode removal device of an electric contact water level gauge according to claim 1, characterized in that: The pipeline clamping unit includes a clamping block, a front end of which is provided with a clamping groove adapted to the pipeline, a rear end of which is provided with a connecting rod, a front end of the support frame is provided with a connecting groove corresponding to the connecting rod, and a connecting spring is provided in the connecting groove.

3. The electrode removal device of an electric contact water level gauge according to claim 1, characterized in that: The electrode fixing unit comprises a rotating top plate rotatably connected to the driving screw, an outer sleeve corresponding to the water level gauge tube is arranged on the rotating top plate, a tie rod nut corresponding to the threaded rod of the electrode is arranged inside the outer sleeve, and the tie rod nut is fixedly mounted on the rotating top plate.

4. The electrode extraction device of the electric contact water level gauge according to claim 3, characterized in that: The side wall of the rotating top plate is provided with a rotating pattern.

5. The electrode removal device of the electric contact water level gauge according to claim 3, characterized in that: The inner wall diameter of the outer sleeve is 0.1-1 cm larger than the outer wall diameter of the water level gauge tube, and the outer sleeve is transparent.

6. The electrode extraction device of an electric contact water level gauge according to claim 1, characterized in that: The driving unit comprises a clamping sleeve which drives the rotating nut to rotate, and the clamping sleeve is connected to the driving motor.

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