Throw-in type liquid level sensor

Abstract

The utility model relates to the technical field of water level detection, and discloses a throw-in type liquid level sensor which comprises a display instrument and a connector installed on the display instrument, a cable electrically connected with the display instrument is installed on the connector, and the tail end of the cable is electrically connected with a probe. A mounting frame is further mounted on the connector, a mounting plate is mounted at one end of the mounting frame, a gap used for adjusting the cable is formed between the connector and the mounting plate, an adjusting cylinder sleeving the cable is fixed to one end of the mounting plate, and a locking assembly used for fastening the cable is mounted on the adjusting cylinder. The adjusting cylinder is arranged at one end of the mounting frame and the locking assembly is arranged on the adjusting cylinder, so that the cable can be adjusted between the adjusting cylinder and the connector, a probe at one end of the cable can be driven to move up and down, and the length can be adjusted according to use requirements; the situation that the water level cannot be detected due to the fact that the cable is too long is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to water level detection technical field, concretely is a kind of input type liquid level sensor. BACKGROUND

[0002] Liquid level sensor is a kind of pressure sensor for measuring liquid level, static pressure input type liquid level transmitter is based on the principle that the static pressure of measured liquid is proportional to the height of the liquid, adopts isolated type diffusion silicon sensing element or ceramic capacitor pressure sensitive sensor, converts static pressure into electrical signal, and then converts into standard electrical signal after temperature compensation and linear correction.

[0003] The current input type liquid level sensor in the process of use (such as Figure 1 As shown);Usually, display instrument is fixed above water tank, and the bottom end of display instrument is connected with probe through cable and detects liquid level;But, this detection method has certain requirement to the height of display instrument installation, if the distance (a) between display instrument and inner bottom wall of water tank is less than the length of cable, cable cannot pull probe, probe contacts with inner bottom wall of water tank, even probe is inclined, leading to inaccurate liquid level detection.

[0004] Therefore, we propose an input type liquid level sensor to solve the problems in the above. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above-mentioned technical problem.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an input type liquid level sensor, including display instrument and connecting head installed on display instrument, and connecting head is installed with cable electrically connected with display instrument, and the tail end of cable is electrically connected with probe;Connecting head is also installed with mounting bracket, and one end of mounting bracket is installed with mounting plate, and the gap for adjusting cable is arranged between connecting head and mounting plate, one end of mounting plate is fixed with adjusting cylinder sleeved on cable, and adjusting cylinder is installed with locking assembly for fastening cable.

[0007] Further, one end of connecting head is fixed with threaded column, one end of mounting bracket is provided with mounting hole corresponding to threaded column, and threaded column is screw-mounted with fixing nut through mounting hole.

[0008] Further, long hole is formed in mounting bracket, and a plurality of fixing bolts are installed in long hole.

[0009] Further, the locking assembly comprises a locking cylinder fixed on the adjusting cylinder, and the locking cylinder and the inside of the adjusting cylinder are in communication with each other, and the inside of the locking cylinder is screw-mounted with a butterfly bolt for fastening the cable.

[0010] Further, the locking assembly comprises a locking sleeve screw-mounted at the end of the adjusting cylinder, one end of the locking sleeve is provided with an inwardly inclined pressing sleeve, and the adjusting cylinder is circumferentially and equidistantly provided with a plurality of elastic pressing plates matched with the pressing sleeve, and gaps are reserved between adjacent elastic pressing plates.

[0011] The utility model discloses the beneficial effects of:

[0012] The utility model discloses the beneficial effects of: BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the prior art structure schematic drawing of the utility model;

[0014] Figure 2 It is the three-dimensional structure schematic drawing of the utility model;

[0015] Figure 3 It is the explosion structure schematic drawing (not containing probe) of the utility model;

[0016] Figure 4 It is the structure schematic drawing of the second embodiment in the utility model;

[0017] Figure 5 It is the application structure schematic drawing of the utility model.

[0018] The names corresponding to various marks in the drawing are as follows:

[0019] 1, display instrument;2, connecting head;3, cable;4, probe;5, mounting frame;6, mounting plate;7, adjusting cylinder;8, locking assembly;801, locking cylinder;802, butterfly bolt;811, locking sleeve;812, pressing sleeve;813, elastic pressing plate;9, threaded column;10, mounting hole;11, fixed nut;12, long hole. DETAILED DESCRIPTION

[0020] Clearly and completely, the technical solutions in the embodiments of the present application will be described below in combination with the drawings in 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 the other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0021] A kind of input liquid level sensor, it includes display instrument 1, connecting head 2 is installed on display instrument 1, and connecting head 2 is installed with cable 3 in the inside, one end of cable 3 is electrically connected with display instrument 1, tail end of cable 3 is electrically connected with probe 4, probe 4 can be put into water, for detecting liquid level;

[0022] One end of connecting head 2 is fixed with threaded column 9, and the outer diameter of threaded column 9 is less than the outer diameter of connecting head 2, the end of mounting bracket 5 is provided with mounting hole 10, and the hole diameter of mounting hole 10 is greater than the outer diameter of threaded column 9 and less than the outer diameter of connecting head 2, after mounting bracket 5 is inserted into threaded column 9 through mounting hole 10, fixed nut 11 is threadedly connected with threaded column 9, so as to play the role of fastening mounting bracket 5, it should be noted that: long hole 12 is also installed on mounting bracket 5, a plurality of fixed bolts (not shown in the figure) pass through the respective long holes and are threadedly connected with the support (not shown in the figure) outside, so as to play the role of fixing display instrument 1.

[0023] Two mounting plates 6 parallel to each other are fixed at the end of mounting bracket 5 away from connecting head 2, and the two mounting plates 6 are connected with the same adjusting cylinder 7, and cable 3 is slidingly installed in adjusting cylinder 7, it should be noted that: a certain gap a is left between adjusting cylinder 7 and connecting head 2, which is used for adjusting cable 3, locking assembly 8 is also installed on adjusting cylinder 7, which plays the role of fastening cable 3 through locking assembly 8 (locking assembly 8 can refer to the following embodiment one or embodiment two), preventing cable 3 from sliding in the inside of adjusting cylinder 7.

[0024] When using the input liquid level sensor, first, display instrument 1 is fixed on the support (not shown in the figure) outside through mounting bracket 5, then probe 4 is put into the water pool and contacted with water, if cable 3 can play the role of pulling probe 4;If the distance a between display instrument 1 and the bottom wall in the water pool is less than the length of cable 3, it cannot play the role of pulling probe 4 (for example Figure 5When the locking assembly 8 is loosened, the butterfly bolt 802 is rotated in the reverse direction, and the end of the butterfly bolt 802 moves in the reverse direction, so that the end of the butterfly bolt 802 can loosen the cable 3.

[0025] Embodiment one

[0026] The first locking assembly: the locking assembly 8 includes a locking cylinder 801 fixed on the outer surface of the adjusting cylinder 7, and the locking cylinder 801 is in communication with the inside of the adjusting cylinder 7, and the inside of the locking cylinder 801 is screwed with a butterfly bolt 802.

[0027] When the locking assembly 8 is tightened: the butterfly bolt 802 is rotated in the positive direction, and the end of the butterfly bolt 802 can move into the inside of the locking cylinder 801, and the end of the butterfly bolt 802 can extend into the inside of the adjusting cylinder 7 and fix the cable 3, preventing the cable 3 from sliding during use.

[0028] When the locking assembly 8 is loosened: the butterfly bolt 802 is rotated in the reverse direction, and the end of the butterfly bolt 802 moves in the reverse direction, so that the end of the butterfly bolt 802 can loosen the cable 3.

[0029] Embodiment two

[0030] The second locking assembly: the locking assembly 8 includes a locking sleeve 811 screwed on the end of the adjusting cylinder 7, and the end of the locking sleeve 811 is provided with an inwardly inclined pressing sleeve 812, which is used to extrude the elastic pressing plate 813; the end of the adjusting cylinder 7 is fixed with a plurality of elastic pressing plates 813 equidistantly along the circumferential direction, and there is a gap between adjacent elastic pressing plates 813, and the elastic pressing plate 813 can be used to tighten the cable 3.

[0031] When the locking assembly 8 is tightened: the locking sleeve 811 is rotated in the positive direction, and the locking sleeve 811 can move the pressing sleeve 812 during screwing, and the pressing sleeve 812 can extrude the plurality of elastic pressing plates 813 during movement, and the plurality of elastic pressing plates 813 will deform and extrude the cable 3 under the extrusion force, thereby tightening the cable 3.

[0032] When the locking assembly 8 is loosened: the locking sleeve 811 is rotated in the reverse direction, and the locking sleeve 811 moves the pressing sleeve 812 in the reverse direction, so that the extrusion force on the plurality of elastic pressing plates 813 is lost, and at this time, the cable 3 can be adjusted in the adjusting cylinder 7.

Claims

1. A kind of throw-in liquid level sensor, including display instrument (1) and the connecting head (2) installed on display instrument (1), and the connecting head (2) is installed with the cable (3) electrically connected with display instrument (1), and the tail end of cable (3) is electrically connected with probe (4);It is characterized by: The connecting head (2) is further provided with a mounting rack (5), one end of the mounting rack (5) is provided with a mounting plate (6), and a gap for adjusting the cable (3) is arranged between the connecting head (2) and the mounting plate (6), one end of the mounting plate (6) is fixedly provided with an adjusting cylinder (7) sleeved on the cable (3), and the adjusting cylinder (7) is provided with a locking assembly (8) for fastening the cable (3).

2. A drop-in level sensor according to claim 1, characterized in that: One end of the connecting head (2) is fixedly provided with a threaded column (9), one end of the mounting rack (5) is provided with a mounting hole (10) corresponding to the threaded column (9), and the threaded column (9) is threadedly provided with a fixing nut (11) penetrating through the mounting hole (10).

3. A drop-in level sensor according to claim 1, wherein: The mounting rack (5) is provided with a long hole (12), and a plurality of fixing bolts are arranged in the long hole (12).

4. A drop-in level sensor according to claim 1, wherein: The locking assembly (8) comprises a locking cylinder (801) fixedly arranged on the adjusting cylinder (7), and the locking cylinder (801) is in communication with the inside of the adjusting cylinder (7), and the inside of the locking cylinder (801) is threadedly provided with a butterfly bolt (802) for fastening the cable (3).

5. A drop-in level sensor according to claim 1, wherein: The locking assembly (8) comprises a locking sleeve (811) threadedly arranged at one end of the adjusting cylinder (7), one end of the locking sleeve (811) is provided with an inwardly inclined pressing sleeve (812), a plurality of elastic pressing plates (813) are equidistantly arranged in the circumferential direction at one end of the adjusting cylinder (7) and cooperated with the pressing sleeve (812), and gaps are arranged between adjacent elastic pressing plates (813).

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