Adjustable top-mounted liquid level switch

Abstract

The utility model discloses an adjustable top-mounted liquid level switch which comprises a floating rod, the floating rod is connected with an adjusting piece used for adjusting a mounting end, and the adjusting piece comprises a telescopic rod connected to the upper side of the floating rod in a sliding mode; the floating ball assembly is arranged at the bottom of the floating rod and used for liquid level early warning, the floating ball assembly comprises a floating ball body slidably connected to the lower side of the floating rod, the upper side and the lower side, close to the floating ball body, of the floating rod are each provided with a set of limiting blocks, and the middle of the floating rod is slidably connected with an induction line electrically connected with an external controller; the utility model relates to the technical field of liquid level switches. According to the adjustable top-mounted liquid level switch, in the process that the floating rod slides along the mounting base, the scale strips on the surface of the floating rod are matched with the mounting base, the distance between the mounting base and the floating ball assembly is read, and after the mounting base and the floating ball assembly are located at the proper distance, the mounting base, the screw rod and the anti-falling block are matched with one another, and the positioning pin is inserted into the positioning groove in the outer surface of the floating rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level switch technical field, concretely is a kind of adjustable top-mounted liquid level switch. BACKGROUND

[0002] The switch for controlling liquid level is called liquid level switch, reference adjustable top-mounted liquid level switch of announcement number CN221125805U, including float rod, screw seat, float ball, float rod passes through from screw seat, the lower end of float rod is installed with float ball, screw bolt is installed on float rod, the clamping degree of float rod is adjusted by first nut, so that the height of float rod can be adjusted, as described in the above patent, when existing adjustable top-mounted liquid level switch is used, it is through the cooperation of nut and rubber sleeve, realizes the clamping of float rod, the positioning effect of this kind of mode to float rod is poor, in the process that liquid level in tank drives float ball to float up, float rod positioning end is prone to loosening and corresponding displacement due to the continuous impact of float ball on limiting ring, and it is difficult to obtain the distance between installation end and float ball in time, which affects the accurate installation of subsequent float ball position, and further affects the accurate early warning of liquid level in tank. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides an adjustable top-mounted liquid level switch, which solves the problems of loosening and displacement of the device positioning end due to the impact of the float ball, difficulty in obtaining the distance between the float ball and the installation end in time, and affects the installation accuracy of the float ball.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: an adjustable top-mounted liquid level switch, comprising a float rod, the float rod is connected with an adjusting part for adjusting the installation end, the adjusting part comprises:

[0005] A telescopic rod is slidably connected to the upper side of the float rod.

[0006] A float ball assembly is arranged at the bottom of the float rod for liquid level early warning, the float ball assembly comprises a float ball body slidably connected to the lower side of the float rod, a set of limiting blocks is installed on the upper side and the lower side of the float ball body, respectively, a sensing line electrically connected to an external controller is slidably connected to the middle part of the float rod.

[0007] An installation part is arranged at the top of the telescopic rod for connecting the junction box.

[0008] A positioning part is connected to the float rod for positioning the float rod, a plurality of positioning grooves are arranged on both sides of the float rod, an installation seat is slidably connected to the middle part of the float rod, screw rods are threadedly connected to both ends of the upper side of the installation seat, a plurality of positioning pins matched with the positioning grooves are rotatably connected to the ends of the screw rods close to the float rod, and anti-loosening blocks slidably connected to the installation seat are installed on the side of the positioning pins away from the float rod.

[0009] A scale bar is arranged on the front side and the rear side of the float rod for reading the position of the float ball assembly.

[0010] Preferably, the telescopic rod bottom is provided with a limiting block connected with the upper side of the float rod, the upper side of the float rod is provided with a telescopic slot corresponding to the telescopic rod and the limiting block, and the middle part of the float ball body is vertically provided with a sliding slot corresponding to the float rod.

[0011] Preferably, the mounting part comprises a mounting column threadedly connected with the top of the telescopic rod, a convex ring fixedly connected with the outer side of the middle part of the mounting column, and a connecting block rotatably connected with the outer side of the convex ring, and the middle parts of the float rod, the telescopic rod and the mounting column are vertically provided with a round groove matched with the induction wire.

[0012] Preferably, the upper side edge of the connecting block is provided with a first thread matched with the mounting end of the external wiring box, and the lower side of the connecting block is provided with a limiting groove matched with the mounting column and the convex ring respectively.

[0013] Preferably, the middle part of the mounting seat is vertically provided with a slot matched with the float rod, and the lower side edge of the mounting seat is provided with a second thread.

[0014] Preferably, the screw rod is fixedly connected with a pushing block away from the positioning pin, and the lower side of the anti-coming-off block is provided with a convex block away from the float rod.

[0015] The utility model provides a kind of adjustable top-mounted liquid level switch.Compared with prior art, it has the following beneficial effects:

[0016] (1), the adjustable top-mounted liquid level switch, by setting positioning member and scale bar in device, in the process that float rod slides along mounting seat, by the scale bar on the surface of float rod and mounting seat cooperation, read out the spacing between mounting seat and float ball assembly, after mounting seat and float ball assembly are at appropriate spacing, let mounting seat, screw rod, anti-coming-off block cooperate with each other, make positioning pin insert into the positioning groove on the outer surface of float rod, realize the positioning treatment to float rod, improve the positioning effect of mounting seat to float rod, it is convenient for user to quickly obtain the spacing between mounting seat and float ball assembly, to improve the installation accuracy of float ball assembly.

[0017] (2), the adjustable top-mounted liquid level switch, by setting mounting part in device, after induction wire is set, sliding telescopic rod, make mounting column, convex ring drive connecting block to go up, after connecting block and wiring box mounting end are aligned, rotating connecting block, make wiring box and connecting block threadedly connected, realize that wiring box is connected by mounting part and telescopic rod, this kind of setting is convenient for user to adjust the height of butt joint end on top of float rod according to wiring box position, improve the adaptability of the top connecting end of device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a sectional view of the utility model;

[0019] Figure 2An enlarged view of the mounting piece of the utility model;

[0020] Figure 3 An enlarged view of the local part of the positioning piece of the utility model;

[0021] Figure 4 A perspective view of the utility model.

[0022] In the figure: 1, float rod; 2, telescopic rod; 3, float ball assembly; 31, float ball main body; 32, limit block; 33, induction line; 4, mounting piece; 41, mounting column; 42, convex ring; 43, connecting block; 5, positioning piece; 51, mounting seat; 52, positioning slot; 53, screw rod; 54, positioning pin; 55, anti-dropping block; 6, scale bar. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Referring to Figures 1-4 The utility model provides two technical schemes as follows:

[0025] The first embodiment: a kind of adjustable top-mounted liquid level switch, including float rod 1, float rod 1 is connected with the adjusting member for installing end adjustment, adjusting member includes: telescopic rod 2, slidingly connected on the upper side of float rod 1;Float ball assembly 3 is arranged at the bottom of float rod 1 for liquid level early warning, and float ball assembly 3 includes float ball main body 31 slidingly connected on the lower side of float rod 1, and a set of limit block 32 is respectively installed on the upper side and the lower side of float ball main body 31 close to float rod 1, and induction line 33 electrically connected with external controller is slidingly connected in the middle of float rod 1;

[0026] Mounting piece 4 is arranged at the top of telescopic rod 2 for docking junction box;Positioning piece 5 is connected with float rod 1 for positioning float rod 1, and a plurality of positioning slots 52 are arranged on the two sides of float rod 1, and mounting seat 51 is slidingly connected in the middle of float rod 1, and screw rod 53 is threadedly connected on the upper side of both ends of mounting seat 51, and positioning pin 54 matched with positioning slot 52 is rotatably connected on the end of both screw rods 53 close to float rod 1, and anti-dropping block 55 slidingly connected with mounting seat 51 is installed on the side of positioning pin 54 away from the end of float rod 1;

[0027] Scale bar 6, set in the front and rear of the float rod 1 for reading the float ball assembly 3 position; telescopic rod 2 bottom is provided with the limit block with the float rod 1 inner upper side sliding connection, the float rod 1 inner upper side corresponds the telescopic rod 2 and the limit block and is provided with telescopic slot, the float ball main part 31 middle part is vertically through the sliding slot corresponding to the float rod 1;The middle part of the mounting seat 51 is vertically provided with the slot matched with the float rod 1, and the lower edge of the mounting seat 51 is provided with the second thread;The screw 53 is fixedly connected with the block away from the positioning pin 54 side, and the lower side of the anti-drop block 55 away from the float rod 1 end is provided with the protruding block;

[0028] In the process of sliding along the mounting seat 51 of the float rod 1, the scale bar 6 on the surface of the float rod 1 is matched with the mounting seat 51, the distance between the mounting seat 51 and the float ball assembly 3 is read, and after the mounting seat 51 and the float ball assembly 3 are at the appropriate distance, the mounting seat 51, the screw 53 and the anti-drop block 55 are matched with each other, the positioning pin 54 is inserted into the positioning groove 52 on the outer surface of the float rod 1, and the positioning treatment of the float rod 1 is realized;

[0029] The second embodiment is mainly different from the first embodiment in that:

[0030] The mounting member 4 includes the mounting column 41 threadedly connected with the top of the telescopic rod 2, the convex ring 42 is fixedly connected to the outer side of the middle part of the mounting column 41, the connecting block 43 is rotatably connected to the outer side of the convex ring 42, and the middle part of the float rod 1, the telescopic rod 2 and the mounting column 41 are all vertically provided with the round groove matched with the induction line 33;

[0031] The upper edge of the connecting block 43 is provided with the first thread matched with the wiring box mounting end, and the lower side of the connecting block 43 is provided with the limiting groove matched with the mounting column 41 and the convex ring 42 respectively, after the induction line 33 is set, the telescopic rod 2 is slid, the mounting column 41 and the convex ring 42 drive the connecting block 43 to move upwards, after the connecting block 43 is aligned with the wiring box mounting end, the wiring box is threadedly connected with the connecting block 43 by rotating the connecting block 43, and the wiring box is connected with the telescopic rod 2 through the mounting member 4.

[0032] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of various electric appliances are not specifically limited, and conventional equipment can be used.

[0033] In use, the user screws the mounting seat 51 on the mounting end of the top cover of the box body, inserts the top of the float rod 1 into the slot in the middle of the mounting seat 51, slides the float rod 1 on the mounting seat 51, reads the distance of the float ball assembly 3 relative to the mounting seat 51 through the scale bar 6, after the float ball assembly 3 is at a proper distance from the mounting seat 51, turns the screw rod 53, the screw rod 53 drives the positioning pin 54 and the anti-disengagement block 55 to slide along the mounting seat 51, after the positioning pin 54 is inserted into the positioning groove 52 on the surface of the float rod 1, stops turning the screw rod 53, realizes the locking and position adjustment of the float rod 1, and then screws the mounting column 41 on the top of the telescopic rod 2;

[0034] The top cover with the float rod 1, the telescopic rod 2, the float ball assembly 3, the mounting piece 4, the positioning piece 5 and the scale bar 6 is reset, at this time the float ball assembly 3 is located at a corresponding height inside the box body, the terminal box is moved to the upper side of the mounting piece 4, the sensing wire 33 is inserted into the inside bottom of the float rod 1 through the circular groove in the middle of the telescopic rod 2 and the mounting column 41, then the telescopic rod 2 is slid, the mounting column 41 and the convex ring 42 drive the connecting block 43 to move upwards, after the connecting block 43 is aligned with the mounting end of the terminal box, the terminal box is screwed with the connecting block 43, the connection of the two is realized, the sensing wire 33 is electrically connected with the external controller, when the liquid level in the box body reaches a proper height, the float ball main body 31 is pushed to slide along the float rod 1, the sensing wire 33 detects the floating of the float ball main body 31, and the prewarning of the corresponding liquid level in the box body is facilitated, which is prior art, and therefore the specific principle is not described in detail.

[0035] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An adjustable top mounted level switch comprising a float rod (1), characterised in that: The floating rod (1) is connected with an adjusting member for installing end adjustment, the adjusting member comprises: A telescopic rod (2) is slidingly connected to the upper side of the floating rod (1); A float ball assembly (3) is arranged at the bottom of the floating rod (1) for liquid level warning, the float ball assembly (3) comprises a float ball main body (31) slidingly connected to the lower side of the floating rod (1), a set of limiting blocks (32) are arranged on the upper side and the lower side of the float ball main body (31) respectively, and an induction line (33) electrically connected with an external controller is slidingly connected to the middle part of the floating rod (1); An installation member (4) is arranged at the top of the telescopic rod (2) for connecting a junction box; A positioning member (5) is connected with the floating rod (1) for positioning the floating rod (1), a plurality of positioning grooves (52) are arranged on both sides of the floating rod (1), an installation seat (51) is slidingly connected to the middle part of the floating rod (1), screw rods (53) are threadedly connected to both ends of the upper side of the installation seat (51), and a plurality of positioning pins (54) matched with the positioning grooves (52) are rotatably connected to the ends of the screw rods (53) close to the floating rod (1), and anti-dropping blocks (55) slidingly connected with the installation seat (51) are arranged on the side of the positioning pins (54) away from the floating rod (1). A scale bar (6) is arranged on the front side and the rear side of the floating rod (1) for reading the position of the float ball assembly (3).

2. An adjustable top mounted level switch according to claim 1, wherein: The bottom of the telescopic rod (2) is provided with a limiting block slidingly connected with the inner upper side of the floating rod (1), the inner upper side of the floating rod (1) is provided with a telescopic groove corresponding to the telescopic rod (2) and the limiting block, and a sliding groove is vertically arranged in the middle part of the float ball main body (31) corresponding to the floating rod (1).

3. An adjustable top mounted level switch according to claim 1, wherein: The installation member (4) comprises an installation column (41) threadedly connected with the top of the telescopic rod (2), a convex ring (42) is fixedly connected to the outer side of the middle part of the installation column (41), and a connecting block (43) is rotatably connected to the outer side of the convex ring (42).

4. An adjustable top mounted level switch according to claim 3, wherein: The upper side edge of the connecting block (43) is provided with a first thread matched with the installation end of an external junction box, and the lower side of the connecting block (43) is provided with a limiting groove matched with the installation column (41) and the convex ring (42) respectively.

5. An adjustable top mounted level switch according to claim 1, wherein: The middle part of the installation seat (51) is vertically provided with a slot matched with the floating rod (1), and the lower side edge of the installation seat (51) is provided with a second thread.

6. An adjustable top mounted level switch according to claim 1, wherein: The side of the screw rod (53) away from the positioning pin (54) is fixedly connected with a pushing block, and the lower side of the anti-dropping block (55) away from the floating rod (1) is provided with a convex block.

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