Anti-interference radar liquid level meter

Abstract

The invention provides an anti-interference type radar liquid level meter, and relates to the field of radar liquid level meters, the anti-interference type radar liquid level meter comprises a connecting assembly, the connecting assembly is composed of a rotating mechanism and a locking mechanism, the connecting assembly can realize quick assembly and disassembly operation between a liquid level meter body and a connecting seat, and six connecting bolts can be synchronously tightened; the maximum tightening force of each connecting bolt is independently controlled, it is guaranteed that the liquid level meter body is stably and rapidly installed in place, and the problems that an existing radar liquid level meter needs to be fixed to a flange plate of a monitoring pipeline through a plurality of bolts in the using process, and consequently the radar liquid level meter is tedious to assemble and disassemble and inconvenient to install and disassemble are solved. The bolts need to be manually tightened one by one during mounting, dismounting and later overhaul and maintenance, and the efficiency is extremely low.

Description

Technical Field

[0001] The present invention relates to the technical field of radar level gauges, and in particular to an anti-interference radar level gauge. Background Art

[0002] Radar level meter is a measuring instrument based on the time-travel principle. Radar waves run at the speed of light, and the running time can be converted into level signals through electronic components. It can emit extremely short microwave pulses with very low energy and transmit and receive them through the antenna system. It has been widely used in measurement environments such as oil tank warehouses and water levels. In order to improve the measurement accuracy and precision of radar level meter, metal shielding covers or other shielding materials are generally installed on the outside of radar level meter to isolate the interference of external electromagnetic fields, so that radar level meter has anti-interference ability.

[0003] However, as far as the currently available anti-interference radar level meter is concerned, it needs to be fixed to the flange of the monitoring pipeline by multiple bolts when in use, which makes the installation and removal of the radar level meter cumbersome. During the installation and removal as well as the subsequent inspection and maintenance, it is necessary to manually tighten the bolts one by one, which is extremely inefficient. During the installation process, it is difficult to ensure the same tightness of the bolts by manually tightening the bolts one by one. The flexibility and stability are poor, and the practicality is not high. Summary of the invention

[0004] The disclosed embodiment relates to an anti-interference radar level gauge, which has a connecting assembly. The connecting assembly can realize rapid installation and removal operations between the level gauge body and the connecting seat. Since the connecting seat is fixedly installed on the monitoring pipeline, the water level and other parameters inside the monitoring pipeline can be monitored after the connection between the level gauge body and the connecting seat is completed. At the same time, when the connecting assembly is installed between the level gauge body and the connecting seat, it can ensure that the six connecting bolts are tightened synchronously and independently control the maximum tightening force of each connecting bolt, so as to ensure that the level gauge body is stably and quickly installed in place, and the flexibility, stability and practicality are extremely strong.

[0005] In a first aspect of the present disclosure, an anti-interference radar level gauge is provided, specifically comprising: a body component, wherein the body component comprises a level gauge body and a connection seat, wherein the level gauge body is plugged into the top of the connection seat through a connection bolt, and the connection seat is detachably fixedly mounted on the top of the monitoring pipeline; the body component further comprises a linkage gear ring and an operating rod, wherein the linkage gear ring is rotatably connected to the inside of the connection seat, and the operating rod is rotatably connected to the inside of the connection seat, and the bottom of the operating rod is meshed with the gear teeth of the outer gear ring of the linkage gear ring for transmission; a connection component, wherein the connection component is composed of a rotating mechanism and a locking mechanism; The rotating mechanism includes a primary rotating seat, a secondary rotating seat and a tertiary rotating seat, the primary rotating seat is rotatably connected to the inside of the connecting seat, and the secondary rotating seat is plugged into the inside of the connecting seat, the secondary rotating seat is plugged into the top of the primary rotating seat, and the tertiary rotating seat is rotatably connected to the inside of the connecting seat, the primary rotating seat, the secondary rotating seat, the tertiary rotating seat and the connecting bolt are coaxially arranged, and the bottom of the primary rotating seat is meshed with the gear teeth of the inner gear ring of the linkage gear ring through another gear, and the rod body of the connecting bolt passes through the inside of the primary rotating seat, the secondary rotating seat and the tertiary rotating seat; The locking mechanism includes a resistance rod, a linkage block and a locking block, the resistance rod is axially inserted in the interior of the three-stage rotating seat, and the resistance rod is inserted in the interior of the linkage block, the linkage block is axially inserted in the interior of the three-stage rotating seat, and the locking block is radially inserted in the interior of the three-stage rotating seat.

[0006] Furthermore, a positioning slot having the same cross-sectional shape as the connecting bolt nut is provided on the top of the level meter body, and the connecting bolt nut is inserted into the positioning slot, six groups of connecting components are provided inside the connecting seat, and four groups of locking mechanisms are provided inside the rotating mechanism.

[0007] Furthermore, a linkage rod is provided on the side of the linkage block, and a linkage groove is provided inside the locking block, and the linkage rod is inserted into the linkage groove.

[0008] Furthermore, the linkage groove is composed of an inclined clutch groove and an axial positioning groove, and the top end of the positioning groove is connected to the bottom end of the clutch groove.

[0009] Furthermore, a separation top spring is provided at the bottom of the resistance rod, and two ends of the separation top spring respectively resist against the bottom of the resistance rod and the inside of the three-stage rotating seat.

[0010] Furthermore, a buffer top spring is provided at the top of the abutment rod, and two ends of the buffer top spring abut against the top of the abutment rod and the inside of the linkage block respectively.

[0011] Furthermore, a locking thread groove is provided on the side of the locking block, and when the linkage rod is located inside the positioning groove, the locking thread groove and the rod body thread of the connecting bolt cooperate.

[0012] Furthermore, the tops of the secondary rotating seat and the tertiary rotating seat are both provided with limiting toothed rings, and the cross-sectional shape of a single tooth of the limiting toothed ring is a right triangle, and the teeth of the two groups of limiting toothed rings are plugged into each other.

[0013] Furthermore, a synchronization rod with a regular polygonal cross section is provided at the bottom of the secondary rotating seat, and a synchronization groove is provided at the top of the primary rotating seat, and the synchronization rod is inserted into the synchronization groove.

[0014] Furthermore, a limit top spring is provided inside the primary rotating seat, and two ends of the limit top spring respectively abut against the inside of the secondary rotating seat and the inside of the primary rotating seat.

[0015] The anti-interference radar level meter provided by the present invention has the following beneficial effects.

[0016] The connecting assembly can realize the rapid installation and disassembly operation between the liquid level meter body and the connecting seat. Since the connecting seat is fixedly installed on the monitoring pipeline, the water level and other parameters inside the monitoring pipeline can be monitored after the connection between the liquid level meter body and the connecting seat is completed. At the same time, when the connecting assembly is installed between the liquid level meter body and the connecting seat, it can ensure that the six connecting bolts are tightened synchronously and independently control the maximum tightening force of each connecting bolt, thereby ensuring that the liquid level meter body is stably and quickly installed in place, thereby improving the flexibility, stability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal structure of the liquid level meter of the present invention when the liquid level meter body is installed on the top of the connecting seat for use.

[0021] Figure 3 The present invention Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0022] Figure 4 It is a schematic diagram of the structure after the main body component of the present invention is disassembled.

[0023] Figure 5 It is a schematic diagram of the structure after the rotating mechanism of the present invention is disassembled.

[0024] Figure 6 It is a schematic diagram of the structure of the locking mechanism of the present invention after being disassembled.

[0025] Figure 7 It is a schematic diagram of the internal structure when the liquid level meter body of the present invention does not interfere with the top of the connecting seat.

[0026] Figure 8 The present invention Figure 7 Schematic diagram of the enlarged structure of part B in the middle.

[0027] Fig. 9 It is a schematic diagram of the structure inside the connecting assembly when the maximum tightening force is reached and the operating rod is continuously rotated forward.

[0028] Fig.10 The present invention Fig. 9 Schematic diagram of the enlarged structure of part C in the middle.

[0029] Reference numerals list 1. Main body assembly; 101. Liquid level meter body; 102. Connecting seat; 103. Linking gear ring; 104. Operating lever; 2. Rotating mechanism; 201. Primary rotating seat; 2011. Synchronous groove; 2012. Limiting top spring; 202. Secondary rotating seat; 2021. Limiting gear ring; 2022. Synchronous rod; 203. Third-level rotating seat; 3. Locking mechanism; 301. Resistance rod; 3011. Separation top spring; 3012. Buffer top spring; 302. Linkage block; 3021. Linkage rod; 303. Locking block; 3031. Clutch groove; 3032. Positioning groove; 3033. Locking thread groove; 4. Connecting bolts. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Please refer to Figures 1 to 10 As shown: Embodiment 1: The present invention provides an anti-interference radar level gauge, including a body component 1, the body component 1 includes a level gauge body 101 and a connecting seat 102, the level gauge body 101 is plugged into the top of the connecting seat 102 through a connecting bolt 4, and the connecting seat 102 is detachably fixedly installed on the top of the monitoring pipeline; the body component 1 also includes a linkage gear ring 103 and an operating rod 104, the linkage gear ring 103 is rotatably connected to the inside of the connecting seat 102, and the operating rod 104 is rotatably connected to the inside of the connecting seat 102, and the bottom of the operating rod 104 is meshed with the gear teeth of the outer gear ring of the linkage gear ring 103 through a gear; a connecting component, the connecting component is composed of a rotating mechanism 2 and a locking mechanism 3; The rotating mechanism 2 includes a primary rotating seat 201, a secondary rotating seat 202 and a tertiary rotating seat 203. The primary rotating seat 201 is rotatably connected to the inside of the connecting seat 102, and the secondary rotating seat 202 is plugged into the inside of the connecting seat 102. The secondary rotating seat 202 is plugged into the top of the primary rotating seat 201, and the tertiary rotating seat 203 is rotatably connected to the inside of the connecting seat 102. The primary rotating seat 201, the secondary rotating seat 202, the tertiary rotating seat 203 and the connecting bolt 4 are coaxially arranged, and the bottom of the primary rotating seat 201 is meshed with the gear teeth of the inner gear ring of the linkage gear ring 103 through another gear, and the rod body of the connecting bolt 4 passes through the first rotating seat 201, the second rotating seat 202 and the tertiary rotating seat 203. The locking mechanism 3 includes a resistance rod 301, a linkage block 302 and a locking block 303. The resistance rod 301 is axially inserted into the inside of the three-stage rotating seat 203, and the resistance rod 301 is inserted into the inside of the linkage block 302. The linkage block 302 is axially inserted into the inside of the three-stage rotating seat 203, and the locking block 303 is radially inserted into the inside of the three-stage rotating seat 203.

[0032] In the embodiment of the present disclosure, a positioning slot having the same cross-sectional shape as the nut of the connecting bolt 4 is provided at the top of the level gauge body 101, and the nut of the connecting bolt 4 is inserted into the inside of the positioning slot, six groups of connecting components are provided inside the connecting seat 102, and four groups of locking mechanisms 3 are provided inside the rotating mechanism 2, a separation top spring 3011 is provided at the bottom of the resistance rod 301, and the two ends of the separation top spring 3011 are respectively in contact with the bottom of the resistance rod 301 and the inside of the three-stage rotating seat 203. In use, when the level gauge is When the main body 101 is not installed on the top of the connecting seat 102, the connecting assembly is in a reset state. At this time, the resistance rod 301 is lifted up under the action of the separation top spring 3011, and the top of the resistance rod 301 is exposed to the top surface of the three-stage rotating seat 203, and the linkage rod 3021 is located at the bottom of the clutch groove 3031, so that the locking block 303 is hidden inside the three-stage rotating seat 203, thereby facilitating the insertion and extraction of the connecting bolt 4 when the liquid level meter body 101 is installed and disassembled, and it is convenient and flexible to use.

[0033] In the embodiment of the present disclosure, a linkage rod 3021 is provided on the side of the linkage block 302, and a linkage groove is provided inside the locking block 303, and the linkage rod 3021 is inserted into the inside of the linkage groove. The linkage groove is composed of an inclined clutch groove 3031 and an axial positioning groove 3032, and the top of the positioning groove 3032 is connected to the bottom of the clutch groove 3031. In use, when the liquid level meter body 101 needs to be installed, the connecting bolt 4 passes through the mounting plate of the liquid level meter body 101 and the nut of the connecting bolt 4 is inserted into the inside of the positioning groove. After the liquid level meter body 101 is directly plugged into the top of the connecting seat 102, the installation operation of the liquid level meter body 101 can be completed by rotating the operating rod 104. When the liquid level meter body 101 is plugged into the top of the connecting seat 102, the connecting bolt 4 will pass through the inside of the rotating mechanism 2. At the same time, the bottom of the liquid level meter body 101 will contact and squeeze the contact rod 301, and the contact rod 301 will move downward and compress the separation top spring 3011. When moving, the contact rod 301 can drive the linkage block 302 to move downward synchronously through the buffer top spring 3012. When the linkage block 302 moves, the linkage rod 3021 can enter the interior of the positioning groove 3032 from the clutch groove 3031, and under the action of the clutch groove 3031, the locking block 303 will move toward the direction close to the connecting bolt 4. A locking thread groove 3033 is provided on the side of the locking block 303, and when the linkage rod 3021 is located in the interior of the positioning groove 3032, the locking thread groove 3033 and the rod body thread of the connecting bolt 4 cooperate, so that the locking block 303 will cooperate with the rod body thread of the connecting bolt 4 after moving, so as to facilitate subsequent locking and disassembly operations.

[0034] In the embodiment of the present disclosure, a limiting tooth ring 2021 is provided at the top of the secondary rotating seat 202 and the tertiary rotating seat 203, and the cross-sectional shape of a single gear tooth of the limiting tooth ring 2021 is a right triangle. The gear teeth of the two sets of limiting tooth rings 2021 are plugged into each other. In use, the installation operation of the liquid level meter body 101 can be completed by plugging the liquid level meter body 101 into the top of the connecting seat 102 and rotating the operating rod 104 forward. When the liquid level meter body 101 is plugged into the top of the connecting seat 102 and the operating rod 104 is rotated forward, the operating rod 104 is rotated forward. 04 can drive the primary rotating seat 201 of all rotating mechanisms 2 to rotate through the linkage gear ring 103, the bottom of the secondary rotating seat 202 is provided with a synchronization rod 2022 with a regular polygonal cross section, and the top of the primary rotating seat 201 is provided with a synchronization groove 2011, the synchronization rod 2022 is inserted into the synchronization groove 2011, when the primary rotating seat 201 rotates, the synchronization groove 2011 can drive the secondary rotating seat 202 to rotate through the synchronization rod 2022, under the action of the limit top spring 2012, when the secondary rotating seat 202 rotates, it can be driven by the two The three-stage rotating seat 203 is driven to rotate by the extrusion and friction between the bevel edges of the gear teeth of the group limit gear ring 2021. After the liquid level meter body 101 is plugged into the top of the connecting seat 102, the locking thread groove 3033 of the locking block 303 will cooperate with the rod thread of the connecting bolt 4. Therefore, when the three-stage rotating seat 203 rotates, the connecting bolt 4 can be locked inside the connecting seat 102 through the locking block 303 (that is, the connecting bolt 4 is driven to move downward), and the six connecting bolts 4 can be locked synchronously, thereby completing the connection between the liquid level meter body 101 and The installation operation between the connecting seat 102 is easy to use. When the liquid level meter body 101 needs to be disassembled, it is only necessary to rotate the operating lever 104 in the opposite direction. After the operating lever 104 is reversed, it can drive the rotating mechanism 2 to reverse synchronously, thereby pushing the connecting bolt 4 upward. Thereafter, an upward pulling force is applied to the liquid level meter body 101, and the liquid level meter body 101 and the connecting bolt 4 can be directly pulled out of the top of the connecting seat 102 to complete the disassembly operation. The connecting assembly will automatically reset, and the installation and disassembly are convenient and fast, which is convenient for installation and future inspection and maintenance operations.

[0035] In the embodiment of the present disclosure, a buffer top spring 3012 is provided on the top of the resistance rod 301, and the two ends of the buffer top spring 3012 respectively resist the top of the resistance rod 301 and the inside of the linkage block 302. In use, the setting of the buffer top spring 3012 enables the locking block 303 to stably cooperate with the rod thread of the connecting bolt 4. Even if the locking thread groove 3033 of the locking block 303 cannot match the thread of the connecting bolt 4 at the initial stage of rotation, the resistance rod 301 will move downward independently of the linkage block 302 and compress the buffer top spring 3012 to avoid the device from getting stuck. When the swivel seat 203 rotates, when the locking thread groove 3033 of the locking block 303 matches the thread of the connecting bolt 4, the buffer top spring 3012 can position the locking block 303 to the thread matching position for use, and the positioning groove 3032 is axially arranged. When the linkage rod 3021 is inside the positioning groove 3032, the linkage block 302 cannot move radially inside the third-stage swivel seat 203, thereby ensuring that the locking thread groove 3033 of the locking block 303 can stably cooperate with the rod body thread of the connecting bolt 4, and there will be no accidental loosening and failure, and it is stable to use.

[0036] In the embodiment of the present disclosure, a limit top spring 2012 is provided inside the primary rotating seat 201, and the two ends of the limit top spring 2012 are respectively against the inside of the secondary rotating seat 202 and the inside of the primary rotating seat 201. In use, the maximum tightening force of the connecting bolt 4 has a limit function. When the tightening force of the connecting bolt 4 is less than the set force, the tightening resistance of the connecting bolt 4 is less than the limit top spring 2012 to maintain the resistance, extrusion and friction transmission force between the bevel edges of the gear teeth of the two sets of limit tooth rings 2021, so that the secondary rotating seat 202 can stably drive the tertiary rotating seat 203 to rotate to achieve continuous rotation. During the tightening operation, when the tightening force of the connecting bolt 4 is greater than the set force, the tightening resistance of the connecting bolt 4 is greater than the limit top spring 2012, which maintains the contact, extrusion and friction transmission force between the beveled edges of the gear teeth of the two sets of limit tooth rings 2021. As a result, the beveled edges of the gear teeth of the two sets of limit tooth rings 2021 will give way to each other and drive the secondary rotating seat 202 to move downward, that is, the secondary rotating seat 202 cannot continue to drive the tertiary rotating seat 203 to rotate. Therefore, even if the operating rod 104 continues to be transmitted forward, the connecting bolt 4 will not be tightened further, thereby ensuring the stable and uniform connection force of all connecting bolts 4.

[0037] Specific usage and function of this embodiment: In the present invention, when the liquid level meter body 101 is not installed on the top of the connecting seat 102, the connecting assembly is in a reset state. At this time, the contact rod 301 is lifted up under the action of the separation top spring 3011, and the top of the contact rod 301 is exposed to the top surface of the three-stage rotating seat 203, and the linkage rod 3021 is located at the bottom of the clutch groove 3031, so that the locking block 303 is hidden inside the three-stage rotating seat 203, thereby facilitating the insertion and extraction of the connecting bolt 4 during installation and removal of the liquid level meter body 101. When the liquid level meter body 101 needs to be installed, the connecting bolt 4 passes through the mounting plate of the liquid level meter body 101 and the nut of the connecting bolt 4 is inserted into the inside of the positioning slot, and then the liquid level meter body 1 After 01 is directly plugged into the top of the connecting seat 102, the installation operation of the liquid level meter body 101 can be completed by rotating the operating rod 104. When the liquid level meter body 101 is plugged into the top of the connecting seat 102, the connecting bolt 4 will pass through the inside of the rotating mechanism 2. At the same time, the bottom of the liquid level meter body 101 will resist and squeeze the resistance rod 301, and the resistance rod 301 will move downward and compress the separation top spring 3011. When the resistance rod 301 moves, it can drive the linkage block 302 to move downward synchronously through the buffer top spring 3012. When the linkage block 302 moves, the linkage rod 3021 can enter the inside of the positioning groove 3032 from the clutch groove 3031, and under the action of the clutch groove 3031, the locking block 303 will move closer to the connecting bolt 4 When the locking block 303 is moved in the direction of rotation, the locking block 303 will cooperate with the rod thread of the connecting bolt 4 after the movement, so as to facilitate the subsequent locking and disassembly operations. After the liquid level meter body 101 is plugged into the top of the connecting seat 102 and the operating rod 104 is rotated forward, the installation operation of the liquid level meter body 101 can be completed. When the liquid level meter body 101 is plugged into the top of the connecting seat 102 and the operating rod 104 is rotated forward, the operating rod 104 can drive the primary rotating seat 201 of all rotating mechanisms 2 to rotate through the linkage gear ring 103. When the primary rotating seat 201 rotates, the synchronous groove 2011 can drive the secondary rotating seat 202 to rotate through the synchronous rod 2022. Under the action of the limit top spring 2012, when the secondary rotating seat 202 rotates, it can pass through two sets of limit The three-stage rotating seat 203 is driven to rotate under the extrusion and friction between the bevel edges of the gear teeth of the gear ring 2021. After the liquid level meter body 101 is plugged into the top of the connecting seat 102, the locking thread groove 3033 of the locking block 303 will cooperate with the rod thread of the connecting bolt 4. Therefore, when the three-stage rotating seat 203 rotates, the connecting bolt 4 can be locked inside the connecting seat 102 through the locking block 303 (that is, the connecting bolt 4 is driven to move downward), and the six connecting bolts 4 can be locked synchronously, thereby completing the installation operation between the liquid level meter body 101 and the connecting seat 102. It is easy to use. When the liquid level meter body 101 needs to be disassembled, it is only necessary to rotate the operating rod 104 in the opposite direction. After the operating rod 104 is reversed, it can drive the rotating mechanism 2 to reverse synchronously.Thereby, the connecting bolt 4 is pushed upward, and then an upward pulling force is applied to the liquid level meter body 101, so that the liquid level meter body 101 and the connecting bolt 4 can be directly pulled out of the top of the connecting seat 102, and the disassembly operation is completed, and the connecting assembly will automatically reset, which is convenient and fast for installation and disassembly, and convenient for installation and future maintenance and other operations. The maximum tightening force of the connecting bolt 4 has a limit function. When the tightening force of the connecting bolt 4 is less than the set force, the tightening resistance of the connecting bolt 4 is less than the limit top spring 2012 to maintain the two sets of limit tooth rings 2021 gear teeth. The friction, extrusion and friction transmission force between the beveled edges, so that the secondary rotating seat 202 can stably drive the tertiary rotating seat 203 to rotate to achieve the operation of continuing to tighten. When the tightening force of the connecting bolt 4 is greater than the set force, the tightening resistance of the connecting bolt 4 is greater than the limit top spring 2012 to maintain the friction, extrusion and friction transmission force between the beveled edges of the gear teeth of the two sets of limit gear rings 21. Thereafter, the beveled edges of the gear teeth of the two sets of limit gear rings 21 will avoid each other and drive the secondary rotating seat 202 to move downward, that is, the secondary rotating seat 202 can no longer drive the tertiary rotating seat 203 to rotate. The first-stage rotating seat 203 rotates, so that even if the operating rod 104 continues to rotate forward, the connecting bolt 4 will not be tightened further, ensuring the stable and uniform connection force of all connecting bolts 4. The setting of the buffer top spring 3012 enables the locking block 303 to stably cooperate with the rod thread of the connecting bolt 4. Even if the locking thread groove 3033 of the locking block 303 cannot match the thread of the connecting bolt 4 at the beginning of rotation, the interference rod 301 will move downward independently of the linkage block 302 and compress the buffer top spring 3012 to avoid the device from getting stuck. When the seat 203 rotates, when the locking thread groove 3033 of the locking block 303 matches the thread of the connecting bolt 4, the buffer top spring 3012 can position the locking block 303 to the thread matching position for use, and the positioning groove 3032 is axially arranged. When the linkage rod 3021 is inside the positioning groove 3032, the linkage block 302 cannot move radially inside the three-stage rotating seat 203, thereby ensuring that the locking thread groove 3033 of the locking block 303 can stably match the rod body thread of the connecting bolt 4, and there will be no accidental loosening and failure.

[0038] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0039] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0040] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An anti-interference radar level meter, comprising: A body component (1), the body component (1) comprising a liquid level meter body (101) and a connecting seat (102), the liquid level meter body (101) being plugged into the top of the connecting seat (102) via a connecting bolt (4), and the connecting seat (102) being detachably fixedly mounted on the top of the monitoring pipeline; characterized in that the body component (1) also comprises a linkage gear ring (103) and an operating rod (104), the linkage gear ring (103) being rotatably connected to the inside of the connecting seat (102), and the operating rod (104) being rotatably connected to the inside of the connecting seat (102), and the bottom of the operating rod (104) being meshed with the gear teeth of the outer gear ring of the linkage gear ring (103) for transmission; a connecting component, the connecting component comprising a rotating mechanism (2) and a locking mechanism (3); The rotating mechanism (2) comprises a primary rotating seat (201), a secondary rotating seat (202) and a tertiary rotating seat (203); the primary rotating seat (201) is rotatably connected to the interior of the connecting seat (102), and the secondary rotating seat (202) is plugged into the interior of the connecting seat (102); the secondary rotating seat (202) is plugged into the top of the primary rotating seat (201), and the tertiary rotating seat (203) is rotatably connected to the interior of the connecting seat (102); the primary rotating seat (201), the secondary rotating seat (202), the tertiary rotating seat (203) and the connecting bolt (4) are coaxially arranged, and the bottom of the primary rotating seat (201) is meshed with the gear teeth of the inner gear ring of the linkage gear ring (103) through another gear, and the rod body of the connecting bolt (4) passes through the interior of the primary rotating seat (201), the secondary rotating seat (202) and the tertiary rotating seat (203); The locking mechanism (3) comprises a resisting rod (301), a linkage block (302) and a locking block (303); the resisting rod (301) is axially inserted into the interior of the three-stage rotating seat (203), and the resisting rod (301) is inserted into the interior of the linkage block (302); the linkage block (302) is axially inserted into the interior of the three-stage rotating seat (203), and the locking block (303) is radially inserted into the interior of the three-stage rotating seat (203).

2. The anti-interference radar level meter according to claim 1, characterized in that: The top of the liquid level meter body (101) is provided with a positioning slot having the same cross-sectional shape as the nut of the connecting bolt (4), and the nut of the connecting bolt (4) is inserted into the interior of the positioning slot, six groups of connecting components are provided inside the connecting seat (102), and four groups of locking mechanisms (3) are provided inside the rotating mechanism (2).

3. The anti-interference radar level gauge according to claim 2, characterized in that: A linkage rod (3021) is provided on the side of the linkage block (302), and a linkage groove is provided inside the locking block (303), and the linkage rod (3021) is inserted into the linkage groove.

4. The anti-interference radar level gauge according to claim 3, characterized in that: The linkage groove is composed of an inclined clutch groove (3031) and an axial positioning groove (3032), and the top end of the positioning groove (3032) is connected to the bottom end of the clutch groove (3031).

5. The anti-interference radar level gauge according to claim 4, characterized in that: A separation top spring (3011) is provided at the bottom of the resistance rod (301), and two ends of the separation top spring (3011) respectively resist against the bottom of the resistance rod (301) and the inside of the three-stage rotating seat (203).

6. The anti-interference radar level gauge according to claim 5, characterized in that: A buffer top spring (3012) is provided at the top of the abutment rod (301), and two ends of the buffer top spring (3012) respectively abut against the top of the abutment rod (301) and the inside of the linkage block (302).

7. An anti-interference radar level gauge as claimed in claim 6, characterized in that: A locking thread groove (3033) is provided on the side of the locking block (303), and when the linkage rod (3021) is located inside the positioning groove (3032), the locking thread groove (3033) and the rod body thread of the connecting bolt (4) are matched.

8. The anti-interference radar level gauge according to claim 7, characterized in that: The tops of the secondary rotating seat (202) and the tertiary rotating seat (203) are both provided with a limiting toothed ring (2021), and the cross-sectional shape of a single tooth of the limiting toothed ring (2021) is a right triangle, and the teeth of the two groups of limiting toothed rings (2021) are plugged into each other.

9. An anti-interference radar level gauge as claimed in claim 8, characterized in that: The bottom of the secondary rotating seat (202) is provided with a synchronization rod (2022) having a regular polygonal cross section, and the top of the primary rotating seat (201) is provided with a synchronization groove (2011), and the synchronization rod (2022) is inserted into the synchronization groove (2011).

10. The anti-interference radar level gauge according to claim 9, characterized in that: A limiting top spring (2012) is provided inside the primary rotating seat (201), and two ends of the limiting top spring (2012) respectively abut against the inside of the secondary rotating seat (202) and the inside of the primary rotating seat (201).

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