CN210051407U

CN210051407U - Float-ball type liquid level meter

Info

Publication number: CN210051407U
Application number: CN201920779759.2U
Authority: CN
Inventors: 胡英江
Original assignee: Changzhou Songying Liquid Mirror Co Ltd
Current assignee: Changzhou Songying Liquid Mirror Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-02-11
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a floater formula level gauge, it includes a pair of bevel gear pair, the connecting rod, rotatory transfer line and shell, a pair of bevel gear is vice including meshing driven first bevel gear and second bevel gear, the one end of connecting rod is connected with the floater, the other end of connecting rod and first bevel gear's wheel center fixed connection, the one end and the coaxial fixed connection of second bevel gear of rotatory transfer line, the coaxial fixedly connected with one-level magnet dish of the other end of rotatory transfer line, the one side that rotatory transfer line was kept away from to the one-level magnet dish is installed two opposite semicircular one-level magnet pieces, one side that one-level magnet piece kept away from the one-level magnet dish is equipped with the second grade magnet post with the coaxial setting of one-level magnet dish, second grade magnet post is connected with the level indication table, the level indication table includes. The utility model discloses the commonality is strong, not only can install and carry out level measurement in the top of box, can install moreover and carry out level measurement in the lateral wall of box.

Description

Float-ball type liquid level meter

Technical Field

The utility model belongs to the technical field of the technique of level gauge and specifically relates to a floating ball formula level gauge is related to.

Background

The height of the liquid medium in the container is called the liquid level, and the instrument for measuring the liquid level is called a liquid level meter. The liquid level meter is one of level meters. The type of the liquid level meter comprises a tuning fork vibration type, a magnetic suspension type, a pressure type, ultrasonic waves, sonar waves, a magnetic turning plate, radar and the like.

Chinese patent with publication number CN109253778A discloses a floating ball level meter, including level meter fixing device, a level meter port is installed on the fixing device, a hollow floating rod is fixedly installed on the fixing device, a level sensor is arranged on the hollow floating rod, still include the floating rod subassembly that uses with level sensor cooperation, the floating rod subassembly includes the float, sensing floater and connecting screw, the float overlaps on hollow floating rod, the connecting screw upper end is fixed in on the float, the sensing floater overlaps on connecting screw and hollow floating rod, and on at least one end was fixed in the connecting screw, the sensing floater can slide for hollow floating rod, reach and be applicable to multiple liquid level height, the range is adjustable, technical effect that measurement accuracy is high.

When the liquid level sensor works, the floater floats on the surface of the liquid, the sensing floating ball is suspended in the liquid through the floating rod assembly, the sensing floating ball moves to the position of the liquid level sensor along with the lifting of the liquid in the box body, and the liquid level sensor works to transmit an electric signal from a port of the liquid level meter through a cable.

The technical scheme has the following defects: because will measure the liquid level along with the liquid level goes up and down through the floater, the floater level gauge can only be installed and is measured in the top of the box that awaits measuring, has very big limitation, when the box height is higher, is unfavorable for the installation, the operating personnel's of also being convenient for observation moreover.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a floater formula level gauge, the commonality is strong, not only can install and carry out level measurement in the top of box, can install moreover and carry out level measurement in the lateral wall of box, and is nimble convenient.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a floating ball type liquid level meter comprises a pair of bevel gear pairs, a connecting rod, a rotary transmission rod and a shell, wherein the pair of bevel gear pairs comprises a first bevel gear and a second bevel gear which are in meshing transmission, a floating ball is connected to one end of the connecting rod, the other end of the connecting rod is fixedly connected with the wheel center of the first bevel gear, the axis of the connecting rod is perpendicular to the axis of the first bevel gear, one end of the rotary transmission rod is fixedly connected with the second bevel gear in a coaxial mode, a first-stage magnet disc is fixedly connected to the other end of the rotary transmission rod in a coaxial mode, two semicircular first-stage magnet blocks with opposite polarities are installed on the surface, away from the rotary transmission rod, of the first-stage magnet disc, a second-stage magnet column which is coaxially arranged with the first-stage magnet disc is arranged on one side, away from the first-stage magnet disc, and, the one-level magnet piece with the actuation is corresponded to the second grade magnet piece, the second grade magnet post is connected with the liquid level indicator, the liquid level indicator includes the pointer, the second grade magnet post with the pointer is connected, the bevel gear is vice the rotation transmission pole the one-level magnet dish with the second grade magnet post all install in the shell.

Through adopting above-mentioned technical scheme, the liquid level changes, makes the floater go up and down along with the liquid level, makes the connecting rod swing round first bevel gear's wheel center, drives first bevel gear and rotates, makes the second bevel gear with first bevel gear meshing rotate, drives the rotation transmission pole and rotates, rotates with the one-level magnet dish that rotation transmission pole one end is connected, through the magnetic force that the corresponding actuation of one-level magnet piece and second grade magnet piece produced the coupling, makes the second grade magnet post rotate, makes the pointer of being connected with the second grade magnet post rotate, shows on the liquid level indicator. The connecting rod is turned by the bevel gear pair, the liquid level is measured by the swinging of the connecting rod, the liquid level measuring device can be installed on the top end of the box body to measure, and can be installed on the side wall of the box body to measure, so that the liquid level measuring device is strong in universality, flexible and convenient.

The utility model discloses further set up to: install isolated closing plate between one-level magnet piece and the second grade magnet piece, one-level magnet piece with the second grade magnet piece is laminated with isolated closing plate's side respectively.

Through adopting above-mentioned technical scheme, isolated closing plate keeps apart between one-level magnet dish and second grade magnet post and seals, blocks to seal the liquid that awaits measuring for the liquid that awaits measuring is difficult for flowing out or gets into the liquid level indicator and causes the pollution, safe and reliable.

The utility model discloses further set up to: one side that the rotatory transfer line was kept away from to one-level magnet dish is equipped with the rivet, two the separation of one-level magnet piece, the rivet is located two between the one-level magnet piece, the rivet passes in proper order one-level magnet dish with rotatory transfer line, the thread bush is equipped with fastening nut on the rotatory transfer line, fastening nut butt in one-level magnet dish is kept away from the terminal surface of rivet.

Through adopting above-mentioned technical scheme, rivet connection one-level magnet dish and rotation transmission pole, the terminal surface butt of rivet is kept away from to fastening nut and one-level magnet dish, and fastening nut and rivet cooperation make one-level magnet dish and rotation transmission pole be connected inseparabler, the difficult condition that takes place to become flexible.

The utility model discloses further set up to: the utility model discloses a liquid level indicating gauge, including the first level magnet piece, the second level magnet piece, the pointer cover is located the lateral wall of locating lever, the locating lever is kept away from the tip of first level magnet piece and is installed the adapter sleeve, the pointer is located the adapter sleeve with between the second level magnet piece, the liquid level indicating gauge includes indicating disc and observation table lid, the coaxial rotation cover of indicating disc is located the lateral wall of second level magnet piece, it is located to observe the table lid the indicating disc is kept away from the one side of first level magnet piece, observe the table lid with the indicating disc forms installation space, the pointer with the adapter sleeve is located installation space.

Through adopting above-mentioned technical scheme, the liquid level changes, makes the floater along with the liquid level goes up and down, makes the connecting rod swing round first bevel gear's wheel center, drives first bevel gear and rotates, makes second bevel gear rotate, drives the rotation transmission pole and rotates, and the one-level magnet dish rotates, and the magnetic force that produces the coupling through the corresponding actuation of one-level magnet piece and second grade magnet piece makes second grade magnet post rotate, makes the pointer of being connected with second grade magnet post rotate, shows on the dial indicator of liquid level indicator. The adapter sleeve is installed in the tip of locating lever, carries out spacing fastening to the pointer, makes the stable cover of pointer locate on the locating lever and the difficult condition that takes place not hard up landing, makes the pointer be connected with second grade magnet post inseparabler, and the second grade magnet post of being convenient for drives the pointer and rotates, makes the rotation of pointer more stable and sensitive, has improved level measurement's accuracy. The observation table lid and the indicating dial form an installation space for the pointer to be installed, the pointer is protected in a sealing mode, and the condition that external dust enters to influence the rotation of the pointer is reduced.

The utility model discloses further set up to: the mount pad is installed to the liquid level indicator table, the liquid level indicator table nested in on the mount pad, the lateral wall of observing the table lid is equipped with the mounting panel, threaded connection has set screw on the mounting panel, set screw passes and threaded connection mounting panel and mount pad in proper order, the mounting hole has been seted up to the four corners department of mount pad.

Through adopting above-mentioned technical scheme, through set screw connection mounting panel and mount pad, the mounting panel has increased the area of contact who observes table lid and mount pad, makes liquid level indicator table and mount pad connect inseparabler, and the operating personnel dismouting liquid level indicator table and mount pad of being convenient for when the set screw fixity is high. The mounting holes are located at four corners of the mounting seat, stress is uniform, and the mounting seat is convenient to stably mount on the side wall or the top of the box body to be tested through the mounting holes.

The utility model discloses further set up to: the first bevel gear is an incomplete gear.

Through adopting above-mentioned technical scheme, the floater is along with the liquid level lift, makes the connecting rod swing, drives first bevel gear and rotates, and first bevel gear is incomplete gear, prescribes a limit to the swing range of connecting rod, makes the connecting rod not take place the swing of out of range because of the change of liquid level, does not influence the pointer and normally show the liquid level on the dial.

The utility model discloses further set up to: the shell is close to first bevel gear department is equipped with a pair of parallel arrangement's gag lever post, the connecting rod is located a pair of between the gag lever post, a pair of the axis perpendicular to of gag lever post the axis of connecting rod.

Through adopting above-mentioned technical scheme, the floater makes the connecting rod swing along with the liquid level goes up and down, and the stop lever is spacing to the motion of connecting rod, makes the connecting rod swing between a pair of stop lever. When the change of the liquid level to be measured is overlarge, the pointer can be influenced to normally display at the indicating disc by the swing of the connecting rod beyond the range. The limiting rod and the first bevel gear are matched together to limit the swing range of the connecting rod, so that the pointer is guaranteed to display in the normal reasonable range of the indicating dial, and the indicating dial is safe and reliable.

The utility model discloses further set up to: the connecting rod is in threaded connection with the floating ball.

Through adopting above-mentioned technical scheme, connecting rod and floater threaded connection, the dismouting of the floater of being convenient for when the fixity is high makes operating personnel can in time change the floater.

To sum up, the beneficial effects of the utility model are that:

1. the technology of a bevel gear pair, a connecting rod, a rotary transmission rod, a floating ball, a first-level magnet disc, a second-level magnet column and a liquid level indicator is adopted, the liquid level changes, the floating ball is lifted along with the liquid level, the connecting rod swings around the wheel center of a first bevel gear to drive the first bevel gear to rotate, the second bevel gear rotates to drive the rotary transmission rod to rotate, the first-level magnet disc rotates, the first-level magnet block and the second-level magnet block are correspondingly attracted to generate coupled magnetic force, the second-level magnet column rotates, the liquid level indicator displays on the liquid level indicator, the connecting rod is steered through the bevel gear pair, the liquid level is measured through the swinging of the connecting rod, the liquid level indicator can be installed at the top end of a box body to measure, and can be installed;

2. the technology of the isolation sealing plate is adopted, the isolation sealing plate is used for isolating and sealing between the primary magnet disc and the secondary magnet column, and liquid to be detected is blocked and sealed, so that the liquid to be detected is difficult to flow out or enter the liquid level indicator to cause pollution, and the liquid level indicator is safe and reliable;

3. the utility model discloses a liquid level measurement's technique, including locating lever, pointer, adapter sleeve, liquid level indicator, dial and observation table lid, the second grade magnet post rotates, makes the pointer rotate, shows on the dial of liquid level indicator, the adapter sleeve carries out spacing fastening to the pointer, make the pointer stabilize the cover locate the locating lever on and the difficult condition that takes place not hard up landing, make pointer and second grade magnet columnar connection inseparabler, the rotation of pointer is more stable and sensitive, improved liquid level measurement's accuracy.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural diagram for embodying the inside of the housing in the present embodiment.

Fig. 3 is a schematic structural view showing the connection of the rotation transmission rod, the first-stage magnet disk, the first-stage magnet block, the isolation sealing plate, and the second-stage magnet post in this embodiment.

Fig. 4 is a schematic structural view for showing the connection relationship of the fastening sleeve, the pointer and the secondary magnet post in the present embodiment.

Fig. 5 is a schematic structural view for embodying the jumper and the rivet in the present embodiment.

Fig. 6 is a schematic structural view for embodying the observation of the bezel, the mounting plate, and the fixing screw in the present embodiment.

Fig. 7 is a schematic structural diagram for showing the connection between the liquid level indicator and the mounting seat in the embodiment.

Fig. 8 is a schematic structural diagram for showing that the floating ball type liquid level meter is mounted on a tank body to be measured in the embodiment.

In the figure, 1, a bevel gear pair; 11. a first bevel gear; 12. a second bevel gear; 2. a connecting rod; 3. a floating ball; 4. rotating the transmission rod; 5. a first-order magnetic disk; 51. a first-order magnet block; 6. a secondary magnetic pole; 7. a housing; 81. a pointer; 82. an indicator panel; 83. observing the watch cover; 9. isolating the sealing plate; 13. riveting; 14. fastening a nut; 15. positioning a rod; 16. fastening sleeves; 17. a mounting seat; 18. mounting a plate; 19. a set screw; 20. mounting holes; 21. a limiting rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the utility model discloses a float level meter, which comprises a pair of bevel gear pairs 1. The pair of bevel gear pairs 1 comprises a first bevel gear 11 and a second bevel gear 12 in meshing transmission. First bevel gear 11 is incomplete gear, and the wheel center fixedly connected with connecting rod 2 of first bevel gear 11, the one end and the first bevel gear 11 of connecting rod 2 are connected, and the other end threaded connection of connecting rod 2 has floater 3, and the axis of connecting rod 2 is perpendicular to the axis of first bevel gear 11. The liquid level changes, so that the floating ball 3 rises and falls along with the liquid level, the connecting rod 2 swings around the wheel center of the first bevel gear 11, the first bevel gear 11 is driven to rotate, and the second bevel gear 12 meshed with the first bevel gear 11 rotates. Make connecting rod 2 turn to through bevel gear pair 1, measure the liquid level through the swing of connecting rod 2, not only can install and measure in the top of box, can install in the lateral wall of box moreover and measure, the commonality is strong, and is nimble convenient. Threaded connection, the dismouting of the floater 3 of being convenient for when the fixity is high makes operating personnel can in time change floater 3. The first bevel gear 11 limits the swing range of the connecting rod 2 so that the connecting rod 2 does not swing out of range due to the change of the liquid level.

Referring to fig. 3 and 5, the second bevel gear 12 is coaxially and fixedly connected with a rotation transmission rod 4, one end of the rotation transmission rod 4 is fixedly connected with the wheel center of the second bevel gear 12, the other end of the rotation transmission rod 4 is coaxially and fixedly connected with a first-stage magnet disc 5, two first-stage magnet blocks 51 with opposite polarities are mounted on one surface of the first-stage magnet disc 5, which is far away from the rotation transmission rod 4, and the shape of each first-stage magnet block 51 is semicircular. One side of the first-level magnet disc 5, which is far away from the rotation transmission rod 4, is provided with a rivet 13, the two first-level magnet blocks 51 are separated, the rivet 13 is positioned between the two first-level magnet blocks 51, and the rivet 13 sequentially penetrates through and is connected with the first-level magnet disc 5 and the rotation transmission rod 4. The screw thread cover is equipped with fastening nut 14 on the rotation transfer line 4, and fastening nut 14 is in contact with the terminal surface of first order magnet dish 5 far away from rivet 13. The second bevel gear 12 rotates to drive the rotation transmission rod 4 to rotate, and the first-stage magnet disc 5 connected with one end of the rotation transmission rod 4 rotates. The fastening nut 14 is matched with the rivet 13, so that the first-level magnet disc 5 and the rotary transmission rod 4 are locked and fixed, and the situation of looseness is not easy to occur.

Referring to fig. 3 and 5, an isolation sealing plate 9 is installed on one side of the first-stage magnet block 51 away from the first-stage magnet disc 5, a second-stage magnet column 6 is installed on one side of the isolation sealing plate 9 away from the first-stage magnet block 51, the first-stage magnet block 51 and the second-stage magnet column 6 are respectively attached to the side faces of the isolation sealing plate 9, and the second-stage magnet column 6 is coaxially arranged with the first-stage magnet disc 5. The second-stage magnet column 6 includes two semicircular second-stage magnet pieces, and the polarities of the two second-stage magnet pieces are opposite. The second-level magnet block and the first-level magnet block 51 are attracted correspondingly. The first-level magnet block 51 and the second-level magnet block are correspondingly attracted to generate coupled magnetic force, so that the second-level magnet column 6 rotates. Isolation sealing plate 9 keeps apart between one-level magnet dish 5 and second grade magnet post 6 and seals, blocks to seal the liquid that awaits measuring, safe and reliable.

Referring to fig. 1, a housing 7 is disposed outside the rotation transmission rod 4, and the bevel gear pair 1, the rotation transmission rod 4, the primary magnet disc 5, the isolation sealing plate 9 and the secondary magnet post 6 are all installed in the housing 7. A pair of limiting rods 21 arranged in parallel is arranged at the position, close to the first bevel gear 11, of the shell 7, the connecting rod 2 is located between the pair of limiting rods 21, and the axes of the pair of limiting rods 21 are perpendicular to the axis of the connecting rod 2. The floater 3 makes the connecting rod 2 swing along with the liquid level goes up and down, and the gag lever post 21 is spacing to the motion of connecting rod 2, and when the change of the liquid level that awaits measuring was too big, gag lever post 21 and first bevel gear 11 cooperate jointly, prescribe a limit to the swing range of connecting rod 2.

Referring to fig. 4 and 5, a positioning rod 15 is coaxially and fixedly inserted in the second-stage magnet post 6, the positioning rod 15 extends out of the end surface of the second-stage magnet post 6, and the end portion of the positioning rod 15 close to the isolation sealing plate 9 is rotatably connected with the isolation sealing plate 9. The outer side wall of the positioning rod 15 is sleeved with a pointer 81, and the pointer 81 is located on one side of the second-stage magnet column 6 away from the isolation sealing plate 9. The end of the positioning rod 15 away from the isolation sealing plate 9 is provided with a fastening sleeve 16, a pointer 81 is positioned between the fastening sleeve 16 and the second-stage magnet post 6, and the pointer 81 is respectively abutted against the fastening sleeve 16 and the second-stage magnet post 6. The outer side wall of the second-stage magnet column 6 is coaxially and rotatably sleeved with an indicating disc 82, one side of the indicating disc 82, which is far away from the first-stage magnet block 51, is provided with an observation table cover 83 (see fig. 6), the observation table cover 83 and the indicating disc 82 form an installation space, and the pointer 81 and the fastening sleeve 16 are positioned in the installation space. The pointer 81, the dial 82, and the observation cover 83 constitute a liquid level indicating gauge. The liquid level changes, so that the floating ball 3 rises and falls along with the liquid level, the connecting rod 2 swings, the first bevel gear 11 is driven to rotate, the second bevel gear 12 rotates, the rotary transmission rod 4 is driven to rotate, the first-stage magnet disc 5 rotates, the second-stage magnet column 6 rotates, the pointer 81 connected with the second-stage magnet column 6 rotates, and the indication is displayed on the indication disc 82. The adapter sleeve 16 carries out spacing fastening to pointer 81, makes pointer 81 stably overlap and locates on locating lever 15 and the difficult condition that takes place not hard up landing, and the second grade magnet post 6 of being convenient for drives pointer 81 and rotates, makes pointer 81's rotation more stable and sensitive, has improved liquid level measurement's accuracy. The installation space is used for installing the pointer 81, the pointer 81 is protected in a closed mode, and the situation that external dust enters to influence the rotation of the pointer 81 is reduced.

Referring to fig. 7 and 8, the mounting seat 17 is installed on the liquid level indicator, the liquid level indicator is nested on the mounting seat 17, the mounting plate 18 is arranged on the outer side wall of the observation meter cover 83, the mounting plate 18 is connected with the fixing screw 19 through threads, the fixing screw 19 sequentially penetrates through and is connected with the mounting plate 18 and the mounting seat 17 through threads, and the mounting holes 20 are formed in the four corners of the mounting seat 17. Mounting panel 18 and mount pad 17 are connected to set screw 19, and mounting panel 18 has increased the area of contact who observes table lid 83 and mount pad 17, makes liquid level indicator table and mount pad 17 connect inseparabler, and the operating personnel dismouting liquid level indicator table and mount pad 17 of being convenient for when set screw 19 fixity is high. The mounting seat 17 is mounted on the side wall or the top of the box to be tested, and the floating ball 3, the connecting rod 2 and the shell 7 are mounted in the box to be tested. The mounting hole 20 supplies the mount pad 17 to be connected with the lateral wall of the box that awaits measuring, and the mounting hole 20 makes the mount pad 17 atress even, is convenient for mount pad 17 to pass through the lateral wall or the top of mounting hole 20 stable installation in the box that awaits measuring.

The implementation principle of the above embodiment is as follows: the mounting seat 17 is mounted on the side wall or the top of the box to be tested, and the floating ball 3, the connecting rod 2 and the shell 7 are mounted in the box to be tested. The liquid level changes, so that the floating ball 3 goes up and down along with the liquid level, the connecting rod 2 swings around the wheel center of the first bevel gear 11 to drive the first bevel gear 11 to rotate, the second bevel gear 12 rotates to drive the rotary transmission rod 4 to rotate, the first-level magnet disc 5 rotates, the first-level magnet block 51 and the second-level magnet block are correspondingly attracted to generate coupled magnetic force, the second-level magnet column 6 rotates, the pointer 81 connected with the second-level magnet column 6 rotates, and the magnetic force is displayed on the indicating disc 82. Make connecting rod 2 turn to through bevel gear pair 1, measure the liquid level through the swing of connecting rod 2, not only can install and measure in the top of the box that awaits measuring, can install in the lateral wall of the box that awaits measuring in addition and measure, the commonality is strong, and is nimble convenient.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A floating ball type liquid level meter is characterized in that: the magnetic transmission device comprises a pair of bevel gear pairs (1), a connecting rod (2), a rotary transmission rod (4) and a shell (7), wherein the pair of bevel gear pairs (1) comprises a first bevel gear (11) and a second bevel gear (12) which are in meshing transmission, one end of the connecting rod (2) is connected with a floating ball (3), the other end of the connecting rod (2) is fixedly connected with the wheel center of the first bevel gear (11), the axis of the connecting rod (2) is perpendicular to the axis of the first bevel gear (11), one end of the rotary transmission rod (4) is coaxially and fixedly connected with the second bevel gear (12), the other end of the rotary transmission rod (4) is coaxially and fixedly connected with a first-stage magnet disc (5), and one surface, far away from the rotary transmission rod (4), of the first-stage magnet disc (5) is provided with two semicircular first-stage magnet blocks (, keep away from one-level magnet piece (51) one side of one-level magnet dish (5) be equipped with second grade magnet post (6) of one-level magnet dish (5) coaxial setting, second grade magnet post (6) include two opposite semicircular second grade magnet pieces of polarity, one-level magnet piece (51) with the second grade magnet piece corresponds the actuation, second grade magnet post (6) are connected with the liquid level indicator table, the liquid level indicator table includes pointer (81), second grade magnet post (6) with pointer (81) are connected, bevel gear is vice (1) rotatory transfer line (4) one-level magnet dish (5) with second grade magnet post (6) all install in shell (7).

2. A float level gauge as claimed in claim 1, wherein: an isolation sealing plate (9) is installed between the first-level magnet block (51) and the second-level magnet block, and the first-level magnet block (51) and the second-level magnet block are respectively attached to the side face of the isolation sealing plate (9).

3. A float level gauge as claimed in claim 1, wherein: keep away from one-level magnet dish (5) one side of rotatory transfer line (4) is equipped with rivet (13), two one-level magnet piece (51) separation, rivet (13) are located two between one-level magnet piece (51), rivet (13) pass in proper order one-level magnet dish (5) with rotatory transfer line (4), threaded sleeve is equipped with fastening nut (14) on rotatory transfer line (4), fastening nut (14) butt in one-level magnet dish (5) are kept away from the terminal surface of rivet (13).

4. A float level gauge as claimed in claim 1, wherein: the liquid level indicator is characterized in that a positioning rod (15) is coaxially inserted into the second-level magnet column (6), one end of the positioning rod (15) extends out of the end face of the second-level magnet column (6) far away from the first-level magnet block (51), a pointer (81) is sleeved on the outer side wall of the positioning rod (15), a fastening sleeve (16) is installed at the end part of the positioning rod (15) far away from the first-level magnet block (51), the pointer (81) is located between the fastening sleeve (16) and the second-level magnet column (6), the liquid level indicator comprises an indicating disc (82) and an observation table cover (83), the indicating disc (82) is coaxially and rotatably sleeved on the outer side wall of the second-level magnet column (6), the observation table cover (83) is located on the side, far away from the first-level magnet block (51), of the indication disc (82), and the observation table cover (83) and the indicating disc (82, the pointer (81) and the fastening sleeve (16) are located in the installation space.

5. The float level gauge of claim 4, wherein: mount pad (17) are installed to the liquid level indicator, the liquid level indicator nested in on mount pad (17), the lateral wall of observing table lid (83) is equipped with mounting panel (18), threaded connection has set screw (19) on mounting panel (18), set screw (19) pass and threaded connection mounting panel (18) and mount pad (17) in proper order, mounting hole (20) have been seted up to the four corners department of mount pad (17).

6. A float level gauge as claimed in claim 1, wherein: the first bevel gear (11) is an incomplete gear.

7. A float level gauge as claimed in claim 1, wherein: a pair of limiting rods (21) arranged in parallel is arranged on the shell (7) close to the first bevel gear (11), the connecting rod (2) is located between the pair of limiting rods (21), and the axes of the pair of limiting rods (21) are perpendicular to the axis of the connecting rod (2).

8. A float level gauge as claimed in claim 1, wherein: the connecting rod (2) is in threaded connection with the floating ball (3).