WO2020224052A1

WO2020224052A1 - Guided wave radar liquid level meter cleaning device

Info

Publication number: WO2020224052A1
Application number: PCT/CN2019/095981
Authority: WO
Inventors: 刘伟; 张学飞; 虞文武; 姜海军; 陶波
Original assignee: 常州机电职业技术学院
Priority date: 2019-05-07
Filing date: 2019-07-15
Publication date: 2020-11-12
Also published as: CN109939971A; CN109939971B

Abstract

Disclosed in the present invention is a guided wave radar liquid level meter cleaning device, comprising: a fixing base suitable for mounting the head of a guided wave radar liquid level meter; a connection support fixed to an external structure, the fixing base being mounted on the connection support; a support pipe fixed to the bottom of the fixing base, provided with a hollow hole, and fitted over the outer side of the guided wave radar liquid level meter; a cleaning device arranged on the support pipe, two sets of cleaning devices being symmetrically arranged, and the cleaning devices having a cleaning block suitable for cleaning the outer side wall of a guided wave rod of the wave guide radar liquid level meter; and a drive device driving the two sets of cleaning devices to simultaneously reciprocate in the length direction of the support pipe. The present invention can be used as a support device of the wave radar liquid level meter, can conveniently clean the liquid level meter having a certain distance, and is simple and stable in structure and convenient to operate.

Description

Guided wave radar level gauge cleaning device

Technical field

The invention relates to the technical field of guided wave radar level gauges, in particular to a cleaning device for guided wave radar level gauges.

Background technique

The guided wave radar level gauge is a measuring instrument based on the principle of time travel. The radar wave runs at the speed of light, and the running time can be converted into a level signal by electronic components. The probe sends out a high-frequency pulse and propagates along the probe. When the pulse meets the surface of the material, it is reflected back and received by the receiver in the meter, and the distance signal is converted into a level signal. Guided wave radar level gauges usually include a head and a probe. The head is used for mounting and fixing, and the probe is the detection component.

Guided wave radar level gauge is a contact level gauge. When it is used in corrosive, viscous, foaming and other media, it may cause wall hanging, which will affect the detection result, and because its installation position is generally away from the installation platform With a certain distance, there is also the problem of inconvenience in operation. Therefore, how to design a device that can facilitate the installation of the guided wave radar level gauge and clean it is a technical problem that needs to be solved at present.

Summary of the invention

The technical problem to be solved by the present invention is: in order to solve the problem that the guided wave radar level gauge in the prior art may cause the wall hanging phenomenon, affect the detection result, and the operation is inconvenient, the present invention provides a remote installation and Operated guided wave radar level gauge cleaning device to solve the above problems.

The technical solution adopted by the present invention to solve its technical problems is: a guided wave radar level gauge cleaning device, including a fixing seat suitable for installing the head of the guided wave radar level gauge; a connecting bracket, the The connecting bracket is fixed to the external structure, the fixing seat is installed on the connecting bracket; the support tube is fixed to the bottom of the fixing seat, the support tube is provided with a hollow hole, and the support tube is sleeved on the guided wave radar liquid The outside of the level gauge; a cleaning device arranged on the support tube, the cleaning devices are symmetrically arranged in two groups, and the cleaning device has a cleaning block suitable for cleaning the outer wall of the probe of the guided wave radar level gauge; The driving device drives the two groups of cleaning devices to reciprocate simultaneously in the length direction of the support pipe.

The fixing base and the connecting bracket are arranged in combination, the fixing bracket is fixed with the flange of the head of the guided wave radar level gauge, and the connecting bracket connects the fixing bracket with the external installation platform, which solves the problem of the distance between the guided wave radar level gauge and the installation platform. It’s not easy to install and operate. During the reciprocating movement of the cleaning device along the length direction of the support tube, the cleaning block contacts the outer wall of the probe to remove impurities adhering to the outer wall of the probe. The hollow holes on the support tube facilitate the circulation of internal and external liquids. , Will not affect the normal operation of the guided wave radar level gauge.

Further, the support tube is provided with a first chute along the length direction; the cleaning device further includes a first connecting rod that passes through the first chute and is connected to the cleaning block, and is located outside the support tube And one end of the cam adjustment block is hinged with the first connecting rod, and the other end of the cam adjustment block is hinged with an operating assembly for driving the cam adjustment block to rotate; when it is close to one end of the cam adjustment block of the operating assembly When approaching the support tube gradually, the first connecting rod gradually extends out of the support tube, and at the same time, the cleaning block gradually moves away from the probe of the guided wave radar level gauge.

The first chute is used as a track for the reciprocating movement of the cleaning device, and at the same time as a connection channel between the first connecting rod and the support tube. The first connecting rod is clamped in the first chute and can only be vertical in the first chute. Move up and down or horizontally move in and out of the support tube. During the rotation of the cam adjustment block, the hinge point of the cam adjustment block and the first connecting rod reciprocates along the line where the first connecting rod is located, and the hinge point of the cam adjustment block and the operating assembly Rotating around it, when the end of the cam adjustment block close to the operating assembly gradually approaches the support tube, the distance between the hinge point of the cam adjustment block and the first connecting rod and the support tube gradually increases, thereby The first connecting rod is gradually extended out of the support tube. Because the first connecting rod is fixed to the cleaning block, the cleaning block gradually moves away from the probe of the guided wave radar level gauge.

Further, the operating assembly includes two symmetrically arranged second connecting rods and an operating rod hinged to one end of the two second connecting rods at the same time, and the other ends of the two second connecting rods are respectively connected to the two second connecting rods. The cam adjusting block is hinged, the operating assembly and the cleaning device move together in the length direction of the support tube, and the middle of the two second connecting rods are connected by a second spring.

Further, the cleaning device further includes a first spring located between the inner wall of the support tube and the cleaning block and sleeved on the first connecting rod; a groove is provided on the top of the connecting bracket; When the cleaning block is far away from the surface of the guided wave radar level gauge, the operating rod can be placed in the groove; when the cleaning block is attached to the surface of the guided wave radar level gauge, the operating rod is just right Out of the groove; the tail end of the operating rod is rotatably connected with a horizontal push rod, the horizontal push rod can rotate in a plane perpendicular to the bottom surface of the groove, and the two sides of the horizontal push rod are provided with limit protrusions, One or more groups of limiting card slots corresponding to the limiting protrusions are arranged on the inner side of the groove.

When the cleaning block is far away from the probe of the guided wave radar level gauge, the first spring is in a compressed state, and the state of the cleaning block is fixed by clamping the limiting protrusion in the limiting slot . When the limit protrusion escapes the limit card slot, the cleaning block is pushed to the surface of the probe of the guided wave radar level gauge by the elastic force of the first spring.

Further, the driving device includes a connecting rope, a pulley located at the bottom of the first chute, and two sets of retracting devices respectively connected to both ends of the connecting rope; on the first connecting rod outside the support tube A sleeve pipe is sleeved, and the connecting rope passes through the pulley after being connected with the sleeve pipe, and finally returns to the retracting device.

Preferably, the middle part of the socket pipe is provided with an inner concave groove for connecting the connecting rope.

Preferably, a centering block is fixed at the bottom of the first chute, and a limit protection cover is provided outside the connecting rope passing through the other side of the pulley.

Preferably, the cleaning block is an arc-shaped cleaning block, and the cleaning block is divided into two parts along the length direction, which are respectively an upper elastic cleaning block and a lower conical hard scraper.

Preferably, a first sliding block is provided on the side wall of the socket pipe contacting the outer wall of the support tube, and a second sliding groove corresponding to the first sliding block is provided on the outer wall of the supporting tube; A support plate is provided between a spring and the inner wall of the support tube, a second sliding block is provided on the side wall of the support plate contacting the inner wall of the support tube, and the inner wall of the support tube is provided with a second slider. The third sliding groove corresponding to the slider.

Preferably, the second connecting rod is hingedly connected to the small end of the cam adjustment block; the outer end of the first connecting rod is provided with a restricting small end of the cam adjustment block to the outside of the first connecting rod. End cap with end rotation.

The beneficial effects of the present invention are:

(1) The guided wave radar level gauge cleaning device of the present invention can be used as a support device for the wave radar level gauge, and can easily clean the level gauge with a certain distance, with simple and stable structure and convenient operation.

(2) In the guided wave radar level gauge cleaning device of the present invention, the cam adjustment block is connected to the cleaning block through the first connecting rod. The cam adjustment block can adjust the distance between the cleaning block and the surface of the guided wave radar level gauge. When the guided wave radar level gauge is in a working state, the cleaning block can be kept away from the surface of the guided wave radar level gauge to avoid affecting its normal operation.

(3) In the guided wave radar level gauge cleaning device of the present invention, the cleaning block can be kept in contact with the surface of the guided wave radar level gauge under the condition of no external force through the first spring, and is in a cleaning state At the same time, the cleaning block can be kept away from the guided wave radar liquid level gauge when the guided wave radar liquid level gauge is in the working state through the cooperation of the limit card slot and the limit protrusion protrusion.

Description of the drawings

The present invention will be further described below in conjunction with the drawings and embodiments.

1 is a schematic structural diagram of a specific implementation of the cleaning device for a guided wave radar level gauge according to the present invention;

Figure 2 is a schematic structural view of the cleaning device in use in the guided wave radar level gauge cleaning device of the present invention;

Figure 3 is a schematic structural view of the cleaning device in the guided wave radar level gauge cleaning device of the present invention in an unused state;

4 is a schematic structural diagram of the cleaning device in the cleaning device of the guided wave radar level gauge according to the present invention;

5 is a schematic diagram of the structure of the tail of the operating rod in the cleaning device for the guided wave radar level gauge of the present invention;

Fig. 6 is a schematic diagram of the structure of the cleaning block in the cleaning device for the guided wave radar level gauge of the present invention.

In the figure, 1, support tube, 11, first chute, 12, limit protection cover, 13, centering block, 2, cleaning device, 21, cleaning block, 22, first spring, 23, first connecting rod , 231, end cap, 24, cam adjustment block, 25, connecting column, 26, socket pipe, 261, first slider, 27, support plate, 271, second slider, 3, connecting bracket, 31, groove , 32, limit card slot, 4, operating component, 41, second connecting rod, 42, limit protrusion, 43, second spring, 44, operating rod, 45, horizontal push rod, 5, driving device, 51 , Connecting rope, 52, pulley, 53, retracting device.

Detailed ways

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the drawings. The orientation or position relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention .

In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It is a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood in specific situations. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

As shown in Figures 1 to 4, a cleaning device for a guided wave radar level gauge includes a fixing seat, which is suitable for installing the head of the guided wave radar level gauge; a connecting bracket 3, which is fixed to an external structure , The fixing seat is installed on the connecting bracket 3; the support tube 1 is fixed to the bottom of the fixing seat, the support tube 1 is provided with hollow holes (the hollow holes are not marked on the tube wall), and the support tube 1 is sleeved on the guided wave radar The outside of the level gauge; the cleaning device 2 is arranged on the support tube 1. The cleaning device 2 is symmetrically arranged in two groups, and the cleaning device 2 has a cleaning block 21 suitable for cleaning the outer wall of the probe of the guided wave radar level gauge; The driving device 5 drives the two sets of cleaning devices to reciprocate in the length direction of the support tube 1 at the same time. The specific structure is described below.

Embodiment 1. A cleaning device for a guided wave radar level gauge, as shown in Fig. 1, includes a fixed seat, which is used to install the head of the guided wave radar level gauge and the flange connection piece on the level gauge Connection; below the fixing seat is the support tube 1, used to install the cleaning device 2. At the same time, there are several hollow holes on the tube wall to facilitate the circulation of internal and external liquids. The two side walls of the support tube 1 are symmetrically provided with first slides distributed along the length Slot 11, each first chute 11 is provided with a set of cleaning devices. Take one set of cleaning devices for description. As shown in FIG. 4, the cleaning device 2 includes a cleaning block 21, a first connecting rod 23 that passes through the first chute 11 and is connected to the cleaning block 21, and is located outside the support tube 1 and has one end connected to it. The cam adjustment block 24 is hinged on the first connecting rod 23. The other end of the cam adjustment block 24 is hinged with an operating assembly 4 for driving the cam adjustment block 24 to rotate (the structure of the operating assembly 4 is not shown in Figure 1); the cleaning block 21 is used for cleaning On the outer surface of the level gauge, when one end of the cam adjustment block 24 close to the operating assembly 4 gradually approaches the support tube 1, the first connecting rod 23 gradually extends out of the support tube 1, while the cleaning block 21 gradually moves away from the guide of the guided wave radar level gauge. Pole. By changing the positions of the two ends of the cam adjusting block 24, the distance between the hinge point of the first connecting rod 23 and the cam adjusting block 24 relative to the support tube 1 can be adjusted, thereby realizing the distance adjustment of the inner cleaning block 21.

The driving device 5 includes a connecting rope 51, a pulley 52 located at the bottom of the first chute 11, and two sets of retracting devices 53 respectively connected to both ends of the connecting rope 51; a first connecting rod 23 located outside the support tube 1 is sleeved A socket pipe 26 is provided, and the connecting rope 51 is connected to the socket pipe 26 and passes through the pulley 52, and finally returns to the retractor 53. In this embodiment, two sets of motors are used as the retracting device 53 to realize the electric control of the up and down movement of the cleaning device 2. The motors can be placed in a fixed seat and connected to the two ends of the connecting rope 51 respectively. The two sets of motors are reversed at the same speed. To maintain the tension of the connecting rope 51, the two groups of cleaning devices 2 use the same driving device 5 to ensure the synchronous movement of the two groups of cleaning components. The connecting ropes 51 on both sides can also be retracted synchronously through devices such as synchronous wheels and synchronous belts.

As shown in Figures 2 and 3, the operating assembly 4 includes two symmetrically arranged second connecting rods 41 and an operating rod 44 hinged to one end of the two second connecting rods 41 at the same time, and the other end of the two second connecting rods 41 They are respectively hinged with two cam adjusting blocks 24, the operating assembly 4 and the cleaning device move together in the length direction of the support tube 1, the middle of the two second connecting rods 41 are connected by the second spring 43, the second connecting rod 41 and the cam adjustment A connecting post 25 is provided at the hinge joint of the block 24. The second connecting rod 41 and the cam adjustment block 24 are respectively sleeved on the connecting post 25. The relative position of the operating assembly 4 and the cleaning device is fixed. Therefore, the cleaning device 2 is still The sleeve connection between the connecting pole 25 and the end of the second connecting pole 41 can be realized, and the second spring 43 can maintain the connection between the two connecting poles 25. The above setting can realize remote control at a certain distance, and it is convenient and quick to operate the liquid level gauge at a certain distance from the pool wall or pipe wall.

Embodiment 2. In Embodiment 1, the position of the cleaning block 21 can only be controlled by the operating component 4, and the position of the cleaning block 21 cannot be fixed. When the level gauge is in working condition, the cleaning block 21 needs to be kept away from the liquid The state of the surface of the level gauge; when the level gauge needs to be cleaned, the cleaning block 21 needs to maintain the state of being attached to the surface of the level gauge; for this reason, this embodiment adds the following structure on the basis of embodiment 1: as shown in Figure 4 The cleaning device 2 further includes a first spring 22 located between the inner wall of the support tube 1 and the cleaning block 21 and sleeved on the first connecting rod 23. When the cleaning block 21 is far away from the liquid level, the first spring 22 is in a tensioned state , Under the condition of no external force, the cleaning block 21 is always in contact with the surface of the level gauge under the elastic force of the first spring 22; as shown in Figures 1 and 5, the top of the connecting bracket 3 is provided with a groove 31; When the cleaning block 21 is far away from the surface of the guided wave radar level gauge, the operating rod 44 can be placed in the groove 31; when the cleaning block 21 is attached to the surface of the guided wave radar level gauge, the operating rod 44 just detaches from the groove 31. Ensure that the operating assembly 4 can move up and down together with the cleaning device 2. The connecting bracket 3 located in front of the groove 31 is a hollow structure that penetrates up and down. When the cleaning block 21 is attached to the surface of the guided wave radar level gauge, the operating assembly 4 can pass through Hollow structure. The tail end of the operating rod 44 is rotatably connected with a horizontal push rod 45. The horizontal push rod 45 can rotate in the plane of the bottom surface of the vertical groove 31. The two sides of the horizontal push rod 45 are provided with limit protrusions 42. The inner side of the groove 31 is provided There are one or more groups of limiting slot 32 corresponding to the limiting protrusion 42 for placing and fixing the horizontal push rod 45. When in use, rotate the horizontal push rod 45 to disengage it from the limit slot 32, push the operating rod 44 to move forward along the groove 31, which can drive the cam adjustment block 24 to turn from FIG. 3 to the state of FIG. 2, that is, to realize the cleaning block 21 The probe of the guided wave radar level gauge is close to contact, and the reverse operation can realize the reset of the cleaning device 2. After the horizontal push rod 45 is fixed, the cleaning block 21 is kept away from the probe of the guided wave radar level gauge. , Will not affect the use of the level gauge.

Preferably, the middle part of the socket pipe 26 is provided with an inner concave groove for connecting the connecting rope 51, and the connecting rope 51 is wound on the inner concave groove to facilitate the connection of the connecting rope 51 and avoid falling out.

In Embodiment 3, in order to facilitate winding and reduce the size of the device, the connecting ropes 51 connecting the two sets of cleaning devices 2 are recovered at the inner wall of the support tube 1. At this time, the connecting ropes 51 need to be immersed in the solution, which is easy to dent. On the basis of Embodiment 1 or Embodiment 2, as shown in Fig. 1, a centering block 13 is fixed at the bottom of the first chute 11 to ensure that the connecting rope 51 does not shift during the movement, and at the same time, to a certain extent To remove the contaminants contaminated on the connecting rope 51, the connecting rope 51 on the other side of the pulley 52 is provided with a limit protection cover 12 to prevent the connecting rope 51 from shifting, and to prevent the connecting rope 51 from being immersed in the solution and contaminated with pollutants , Affect the volume.

Preferably, as shown in Figure 6, the cleaning block 21 is an arc-shaped cleaning block, and the cleaning block 21 is divided into two parts along the length direction, namely an upper elastic cleaning block and a lower cone-shaped hard scraper, which can improve the cleaning effect .

Preferably, as shown in FIG. 4, a first sliding block 261 is provided on the side wall of the sleeve pipe 26 contacting the outer wall of the support tube 1, and a second sliding groove corresponding to the first sliding block 261 is provided on the outer wall of the support tube 1. A support plate 27 is provided between the first spring 22 and the inner wall of the support tube 1, and a second slider 271 is provided on the side wall of the support plate 27 that is in contact with the inner wall of the support tube 1. The inner wall of the tube 1 is provided with a third sliding groove corresponding to the second sliding block 271, which can further improve the stability of the up and down movement of the cleaning device 2; the surface of the sleeve tube 26 contacting the cam adjusting block 24 adopts a non-slip design to improve the cam Adjust the stability of the block 24.

Preferably, as shown in FIG. 4, the second connecting rod 41 is hinged to the small end of the cam adjusting block 24; the outer end of the first connecting rod 23 is provided with a restriction that the small end of the cam adjusting block 24 faces the first connecting rod. 23 End cap 231 with outer end rotating. When the operating assembly 4 is pulled backwards, the cam adjustment block 24 can only rotate in the direction close to the support tube 1 to prevent the cam adjustment block 24 from rotating reversely. Since the first connecting rod 23 is provided with a first spring 22, the cleaning block 21 is pulled away from the surface of the level gauge and needs to be squeezed by the first spring 22. The second connecting rod 41 is hinged to the small end of the cam adjustment block 24 to reduce the resistance when the cleaning block 21 is far away from the surface of the level gauge. , To avoid jams during operation.

The guided wave radar level gauge cleaning device of the present invention can be used as a supporting device for the wave radar level gauge, and can conveniently clean the level gauge with a certain distance, with simple and stable structure, convenient operation, and automation operating.

In this specification, the schematic representations of the terms do not necessarily refer to the same embodiment. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments in a suitable manner.

Taking the above-mentioned ideal embodiment according to the present invention as enlightenment, through the above-mentioned description content, relevant workers can make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the content of the description, and its technical scope must be determined according to the scope of the claims.

Claims

A cleaning device for a guided wave radar level gauge, which is characterized in that it comprises:

A fixed seat, which is suitable for installing the head of a guided wave radar level gauge;

A connecting bracket (3), the connecting bracket (3) is fixed to an external structure, and the fixing seat is installed on the connecting bracket (3);

A support tube (1) is fixed at the bottom of the fixing seat, the support tube (1) is provided with a hollow hole, and the support tube (1) is sleeved outside the probe of the guided wave radar level gauge;

The cleaning device (2) is arranged on the support pipe (1), the cleaning device (2) is symmetrically arranged in two groups, and the cleaning device (2) has a guide suitable for cleaning the guided wave radar level gauge. The cleaning block (21) on the outer wall of the pole;

The driving device (5) drives the two sets of cleaning devices to reciprocate in the length direction of the support tube (1) at the same time.
The cleaning device for a guided wave radar level gauge according to claim 1, characterized in that: the support pipe (1) is provided with a first chute (11) along the length direction; the cleaning device (2) further comprises A first connecting rod (23) that passes through the first chute (11) and is connected to the cleaning block (21), is located outside the support tube (1) and has one end connected to the first connecting rod (23) A hinged cam adjustment block (24), the other end of the cam adjustment block (24) is hinged with an operating assembly (4) for driving the cam adjustment block (24) to rotate;

When one end of the cam adjustment block (24) close to the operating assembly (4) gradually approaches the support tube (1), the first connecting rod (23) gradually extends out of the support tube (1), At the same time, the cleaning block (21) gradually moves away from the probe of the guided wave radar level gauge.
The cleaning device for a guided wave radar level gauge according to claim 2, wherein the operating assembly (4) comprises two second connecting rods (41) arranged symmetrically and hingedly connected to the two first The operating rod (44) at one end of the two connecting rods (41), the other ends of the two second connecting rods (41) are hinged with the two cam adjusting blocks (24), and the operating assembly (4) is together with the cleaning device Moving in the length direction of the support tube (1), the middle parts of the two second connecting rods (41) are connected by a second spring (43).
The cleaning device for a guided wave radar level gauge according to claim 3, characterized in that: the cleaning device (2) further comprises an inner wall of the support tube (1) and a cleaning block (21) and sleeved The first spring (22) on the first connecting rod (23); the top of the connecting bracket (3) is provided with a groove (31); when the cleaning block (21) is far away from the guided wave radar liquid On the surface of the level gauge, the operating rod (44) can be placed in the groove (31); when the cleaning block (21) is attached to the surface of the guided wave radar level gauge, the operating rod ( 44) just break away from the groove (31); the tail end of the operating rod (44) is rotatably connected with a horizontal push rod (45), and the horizontal push rod (45) can be perpendicular to the groove (31) Rotating in the plane of the bottom surface, the horizontal push rod (45) is provided with limiting protrusions (42) on both sides, and one or more groups corresponding to the limiting protrusions (42) are provided on the inner side of the groove (31) The limit card slot (32).
The cleaning device for a guided wave radar level gauge according to claim 4, characterized in that: the driving device (5) comprises a connecting rope (51) and a pulley (52) located at the bottom of the first chute (11) And two sets of retracting devices (53) respectively connected to the two ends of the connecting rope (51); the first connecting rod (23) located outside the support tube (1) is sleeved with a sleeve pipe (26), The connecting rope (51) is connected with the sleeve pipe (26) and then passes through the pulley (52), and finally returns to the retracting device (53).
The cleaning device for a guided wave radar level gauge according to claim 5, characterized in that: the middle part of the sleeve pipe (26) is provided with an inner groove for connecting the connecting rope (51).
The cleaning device for a guided wave radar level gauge according to claim 5, characterized in that: a centering block (13) is fixed at the bottom of the first chute (11), passing through the other side of the pulley (52) A limit protection cover (12) is provided on the outside of the connecting rope (51).
The cleaning device for a guided wave radar level gauge according to claim 1, wherein the cleaning block (21) is an arc-shaped cleaning block, and the cleaning block (21) is divided into two parts along the length direction. Elastic cleaning block and lower cone-shaped hard scraper.
The cleaning device for a guided wave radar level gauge according to claim 5, characterized in that: a first sliding block (261) is provided on the side wall of the sleeve pipe (26) in contact with the outer wall of the support pipe (1) , A second sliding groove corresponding to the first sliding block (261) is provided on the outer wall of the support tube (1);

A support plate (27) is provided between the first spring (22) and the inner wall of the support tube (1), and a side wall of the support plate (27) that contacts the inner wall of the support tube (1) is provided with The second sliding block (271) is provided with a third sliding groove corresponding to the second sliding block (271) on the inner wall of the support tube (1).
The cleaning device for a guided wave radar level gauge according to claim 3, wherein the second connecting rod (41) is hinged to the small end of the cam adjusting block (24); the first connecting rod The outer end of (23) is provided with an end cap (231) that restricts the small end of the cam adjusting block (24) from rotating toward the outer end of the first connecting rod (23).