Floating ball switch

Abstract

The utility model discloses a float switch, which comprises an annular floating ball, a magnetic reed switch, a guide rod, a guide rod fixing frame and a stainless steel shell, the upper bottom surface and the lower bottom surface of the stainless steel shell are respectively provided with a round hole, the guide rod is fixed at one end of the guide rod fixing frame, an annular magnet is arranged in the annular floating ball, and a contact of the magnetic reed switch is connected with an external electrical control system. The stainless steel shell is a hollow cylinder, the end, away from the guide rod, of the guide rod fixing frame is provided with a longitudinally-distributed linear rack, the linear rack is inserted into a connecting support, one side of the connecting support is fixed into the stainless steel shell, the linear rack is meshed with a gear, and the center of the gear is connected with a rotating shaft stretching out of the stainless steel shell. An operation knob is connected to the end, located on the outer side of the stainless steel shell, of the rotating shaft, an edge lifting rod is arranged below the guide rod, the magnetic reed switch is sealed in the edge lifting rod, and the edge lifting rod is sleeved with the annular floating ball. The structure can adjust the initial height of the annular floating ball.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of float switch, concretely to a kind of float switch that double-length tobacco rod is cut into two single-length tobacco rods in the cigarette production process. BACKGROUND

[0002] Float switch is a kind of simple structure, convenient to use liquid level control device, it does not need to provide power supply, without complex circuit, it has smaller than general mechanical switch, long service life and other advantages.The correct material is selected when selecting type, any nature liquid or pressure, temperature can be used, it has been widely used in shipbuilding industry, generator equipment, petrochemical industry, food industry, water treatment equipment, dyeing and finishing industry, oil pressure machinery and other aspects.

[0003] The existing float switch, such as the float switch for monitoring and early warning of rainwater well liquid level disclosed in patent announcement No. CN 209374339 U, includes a ring-shaped float ball, a magnetic reed switch, a guide rod, a guide rod fixing frame, a stainless steel shell and a fixing clamp, the guide rod fixing frame is a U-shaped clamp welded on the inner wall of the stainless steel shell, and the lowest position is not more than 30 mm from the top of the stainless steel shell; the magnetic reed switch is sealed in the guide rod, and the guide rod is fixed and welded at the reserved mounting position of the guide rod fixing frame; the stainless steel shell is a hollow cylinder, there is a circular hole on the upper and lower bottom surfaces of the stainless steel shell, and there are nine circular holes on the side surface; the ring-shaped float ball has a ring-shaped magnet inside, and the contact of the magnetic reed switch is connected with the external electrical control system, but the structure has the following problems: once the initial position height of the internal ring-shaped float ball is fixed, it cannot be adjusted, which leads to the fact that it cannot meet the needs of different liquid level heights, so it needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of float switch to solve the problem that the initial position height of the internal ring-shaped float ball of the existing float switch in the above background art is fixed and cannot be adjusted, which leads to the fact that it cannot meet the needs of different liquid level heights.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a float switch, including annular float ball, magnetic spring switch, guide rod, guide rod fixed frame, stainless steel shell, the upper and lower bottom surface of stainless steel shell all is provided with a round hole, the guide rod is fixed on guide rod fixed frame one end, annular float ball has annular magnet, the contact of magnetic spring switch is connected with external electrical control system, the stainless steel shell is hollow cylinder, the one end of guide rod fixed frame away from guide rod is provided with longitudinal distribution's straight line rack, the straight line rack is inserted on a connecting support, one side of connecting support is fixed in the stainless steel shell, the straight line rack is engaged with a gear, the centre of gear is connected with a rotating shaft that protrudes the stainless steel shell, the rotating shaft is connected with an operating knob relative to the end part that is located the outside of stainless steel shell, the below of guide rod is provided with along the riser, the magnetic spring switch is sealed in along the riser, the annular float ball is covered in along the riser, and the annular float ball can move on along the riser under the liquid push.

[0006] As preferred, in order to ensure the stability of the connection, the stainless steel shell comprises an upper cylinder and a lower cylinder, the lower opening end surface of the upper cylinder is provided with an annular convex ring, the upper opening end surface of the lower cylinder is provided with an annular groove matched with the annular convex ring, and the upper cylinder and the lower cylinder are connected together by welding at the joint.

[0007] As preferred, in order to limit the straight line rack, a sliding rail groove is arranged on the connecting support, the straight line rack is slidingly connected in the sliding rail groove and partially protrudes from the sliding rail groove, and a limiting block is arranged on the upper side of the straight line rack to limit the straight line rack in the sliding rail groove.

[0008] As preferred, in order to facilitate the fixation of the device later, a U-shaped clamping seat is arranged on the side of the stainless steel shell.

[0009] As preferred, in order to improve the overall strength, one or more internal reinforcing ribs are arranged on the inner side of the stainless steel shell from top to bottom, the internal reinforcing ribs are circular and arranged along the shape of the inner wall of the stainless steel shell.

[0010] As preferred, in order to facilitate the quick drainage later, a plurality of through holes one are arranged on the side of the lower cylinder.

[0011] As preferred, in order to avoid the hard contact between the rotating shaft and the through hole two and the sound emission, a through hole two is arranged on the side of the stainless steel shell, the rotating shaft is inserted in the through hole two, and a silica gel ring is arranged between the inside of the through hole two and the rotating shaft.

[0012] Compared with the prior art, the utility model has the beneficial effects that: the structure can properly adjust the initial height of the annular float ball below, so as to meet the needs of different liquid level heights. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A top view of a float switch disclosed in Embodiment 1;

[0014] Figure 2 A cross-sectional view in the direction of A-A in Figure 1

[0015] Figure 3 A perspective view of a float switch disclosed in Embodiment 1 with the bottom up and electrical properties not exposed;

[0016] Figure 4 An enlarged view of B in Figure 2

[0017] An enlarged view of C in Figure 5 Figure 2

[0018] A reference view of the connection structure of the gear and the rack when viewed from the right to the left side; Figure 6

[0019] A perspective view of a float switch disclosed in Embodiment 2 with the bottom up and electrical properties not exposed; Figure 7

[0020] A schematic view of the internal structure of a float switch in Embodiment 3; Figure 8

[0021] A perspective view of a float switch disclosed in Embodiment 4 with the bottom up and electrical properties not exposed. Figure 9 In the figure: annular float ball 1, magnetic reed switch 2, guide rod 3, guide rod fixing frame 4, stainless steel shell 5, upper cylinder body 501, lower cylinder body 502, annular convex ring 503, annular recess 504, circular hole 6, annular magnet 7, straight rack 8, connecting bracket 9, sliding rail groove 901, gear 10, rotating shaft 11, operation knob 12, along the riser 13, limit block 14, U-shaped clamping seat 15, inner reinforcing rib 16, through hole one 17, through hole two 18, silica gel ring 19.

[0022] DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0024] Embodiment 1: ​​​

[0025] Please refer to Figures 1-6 The embodiment discloses a float switch which comprises a ring-shaped float ball 1, a magnetic reed switch 2, a guide rod 3, a guide rod fixing frame 4, a stainless steel shell 5, the upper and lower bottom surfaces of the stainless steel shell 5 are provided with a circular hole 6, the guide rod 3 is fixed on one end of the guide rod fixing frame 4, the ring-shaped float ball 1 is internally provided with a ring-shaped magnet 7, the contact of the magnetic reed switch 2 is connected with an external electrical control system, the stainless steel shell 5 is a hollow cylinder, the end, away from the guide rod 3, of the guide rod fixing frame 4 is provided with a longitudinally distributed straight rack 8, the straight rack 8 is inserted on a connecting support 9, one side of the connecting support 9 is fixed in the stainless steel shell 5, the straight rack 8 is engaged with a gear 10, the center of the gear 10 is connected with a rotating shaft 11 which extends out of the stainless steel shell 5, the end, located outside the stainless steel shell 5, of the rotating shaft 11 is connected with an operation knob 12, the lower portion of the guide rod 3 is provided with a lifting rod 13, the magnetic reed switch 2 is sealed in the lifting rod 13, the ring-shaped float ball 1 is sleeved on the lifting rod 13, and the ring-shaped float ball 1 can move on the lifting rod 13 under the pushing of liquid.

[0026] As preferred, in order to ensure the stability of the connection, the stainless steel shell 5 comprises an upper cylinder body 501 and a lower cylinder body 502, the lower opening end surface of the upper cylinder body 501 is provided with an annular convex ring 503, the upper opening end surface of the lower cylinder body 502 is provided with an annular groove 504 matched with the annular convex ring 503, and the upper cylinder body 501 and the lower cylinder body 502 are connected together through welding at the joint. Through the above structure, the annular convex ring 503 is added, the contact area of the connection between the upper cylinder body 501 and the lower cylinder body 502 is larger, and the stability of the connection after welding is stronger.

[0027] As preferred, in order to limit the straight rack 8, a sliding rail groove 901 is arranged on the connecting support 9, the straight rack 8 is slidingly connected in the sliding rail groove 901 and partially extends out of the sliding rail groove 901, a limiting block 14 is arranged on the upper side of the straight rack 8 and limits the straight rack 8 in the sliding rail groove 901, when the straight rack 8 moves to the lower surface of the limiting block 14 and is attached to the connecting support 9, the whole straight rack 8 cannot be taken out of the sliding rail groove 901 under the action of the limiting block 14, and the limiting block 14 further limits the straight rack 8.

[0028] As a preferred, in order to avoid the shaft 11 and the hole two 18 hard contact sound, the stainless steel shell 5 side is provided with hole two 18, the shaft 11 is inserted into the hole two 18, and the hole two 18 inside and the shaft 11 are provided with silica gel ring 19, by adding silica gel ring 19 outside the shaft 11 can avoid the shaft 11 and the hole two 18 hard contact and cause the shaft 11 to rotate in the process of emitting irritating sound.

[0029] In operation, according to the requirements, the knob 12 can be rotated to drive the gear 10 to rotate. Since the gear 10 is engaged with the straight rack 8, the rotation of the gear 10 drives the straight rack 8 to move up and down, so as to adjust the height of the guide rod 3, and finally to realize the appropriate adjustment of the initial height of the lower annular floating ball 1, so that it can adapt to the installation requirements of different liquid level depths. Meanwhile, the shell is made of stainless steel, which is not affected by corrosive media, so that the service life is longer, and frequent replacement and maintenance are not required, thereby reducing the operating cost of enterprises. In addition, it is resistant to high temperature and high pressure.

[0030] During installation, the device is installed in the corresponding liquid level environment. As the liquid level in the liquid level environment rises, the liquid enters the stainless steel shell 5 through the lower circular hole 6. When the liquid level slowly rises to the point that the annular floating ball 1 inside the stainless steel shell 5 is floated along the lifting rod 13 to be close to the magnetic reed switch 2 and located outside the magnetic reed switch, the annular magnet 7 in the annular floating ball 1 attracts the closing of the magnetic reed switch 2. When the liquid level in the liquid level environment slowly decreases, the liquid in the stainless steel shell 5 slowly flows out from the bottom circular hole 6. At this time, the annular floating ball 1 slowly moves away from the magnetic reed switch 2, so that the magnetic reed switch 2 returns to the initial state. In this way, the floating of the annular floating ball 1 makes the magnetic reed switch 2 produce opening and closing action, so as to control the liquid level.

[0031] Embodiment 2:

[0032] Please refer to Figure 7 The embodiment discloses a floating ball switch. As a preferred, in order to facilitate the fixation of the device in the later period, the side of the stainless steel shell 5 is provided with a U-shaped clamping seat 15. Through the arrangement of the U-shaped clamping seat 15, the device can be fixed in the corresponding liquid level detection environment by cooperating with the screw and the nut in the later period.

[0033] Embodiment 3:

[0034] Please refer to Figure 8 The embodiment discloses a floating ball switch. As a preferred, in order to improve the overall strength, the inner side of the stainless steel shell 5 is provided with one or more than one inner reinforcing ribs 16 from top to bottom at intervals. The inner reinforcing rib 16 is in the shape of a circular ring and is arranged along the inner wall of the stainless steel shell 5. The arrangement of the inner reinforcing rib 16 on the inner side of the stainless steel shell 5 improves the hardness and strength of the entire stainless steel shell 5.

[0035] Embodiment 4:

[0036] Please refer to Figure 9 The lower cylinder 502 side is provided with a plurality of through holes 17, which facilitates the later drainage.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A float switch, comprising an annular float (1), a reed switch (2), a guide rod (3), a guide rod fixing bracket (4), and a stainless steel housing (5), wherein the upper and lower bottom surfaces of the stainless steel housing (5) are each provided with a circular hole (6), the guide rod (3) is fixed to one end of the guide rod fixing bracket (4), the annular float (1) contains an annular magnet (7), the contacts of the reed switch (2) are connected to an external electrical control system, and the stainless steel housing (5) is a hollow cylinder, characterized in that: The one end of the guide rod fixing frame (4) away from the guide rod (3) is provided with a longitudinal linear rack (8), the linear rack (8) is inserted on a connecting support (9), one side of the connecting support (9) is fixed in the stainless steel shell (5), the linear rack (8) is engaged with a gear (10), the center of the gear (10) is connected with a rotating shaft (11) extending out of the stainless steel shell (5), the rotating shaft (11) is connected with an operation knob (12) at the end outside the stainless steel shell (5), the lower side of the guide rod (3) is provided with a along lifting rod (13), the reed switch (2) is sealed in the along lifting rod (13), the annular float ball (1) is sleeved outside the along lifting rod (13), and the annular float ball (1) can move on the along lifting rod (13) under the push of liquid.

2. A float switch according to claim 1, characterised in that: The stainless steel shell (5) comprises an upper cylinder (501) and a lower cylinder (502), an annular convex ring (503) is arranged on the lower opening end surface of the upper cylinder (501), an annular groove (504) matched with the annular convex ring (503) is arranged on the upper opening end surface of the lower cylinder (502), and the upper cylinder (501) and the lower cylinder (502) are connected together by welding at the joint.

3. A float switch according to claim 1, wherein: A sliding rail groove (901) is arranged on the connecting support (9), the linear rack (8) is slidingly connected in the sliding rail groove (901) and partially extends out of the sliding rail groove (901), and a limiting block (14) limiting the linear rack (8) in the sliding rail groove (901) is arranged on the upper side of the linear rack (8).

4. A float switch according to claim 1, wherein: A U-shaped clamping seat (15) is arranged on the side of the stainless steel shell (5).

5. A float switch according to claim 1, wherein: One or more than one inner reinforcing ribs (16) are arranged on the inner side of the stainless steel shell (5) in a spaced manner from top to bottom, the inner reinforcing ribs (16) are circular annular and arranged along the shape of the inner wall of the stainless steel shell (5).

6. A float switch according to claim 2, wherein: A plurality of through holes I (17) are arranged on the side of the lower cylinder (502).

7. A float switch according to claim 1 or 2 or 3 or 4 or 5 or 6 wherein: A through hole II (18) is arranged on the side of the stainless steel shell (5), the rotating shaft (11) is inserted in the through hole II (18), and a silica gel ring (19) is arranged between the inside of the through hole II (18) and the rotating shaft (11). A through hole II (18) is arranged on the side of the stainless steel shell (5), the rotating shaft (11) is inserted in the through hole II (18), and a silica gel ring (19) is arranged between the inside of the through hole II (18) and the rotating shaft (11).

Images