Differential pressure type liquid level transmitter

Abstract

The utility model provides a differential pressure type liquid level transmitter, which relates to the technical field of liquid level transmitters and comprises a take-up box and a transmitter body. In use, through cooperative use of the take-up box, the top plate, the transmitter body and the take-up assembly, after the transmitter is fixed on equipment or an installation site, the transmitter body is pulled, the surface of a wire tiger rotating block rotates, a guide block is pulled, and when two sliding sleeves and two sliding blocks move backwards on the surfaces of two first fixing rods, the two sliding sleeves and the two sliding blocks move backwards. The two sliding blocks extrude the two springs, so that the two springs are deformed, shrunk, bent and folded to be drawn out in the take-up box, meanwhile, under the elastic reset action of the two springs, redundant wires on the outer side can be pulled into the take-up box, and the situation that when the wires are too long, the too long wires are prone to being wound and knotted, and attractiveness is affected is avoided; and the internal wire harness of the wire which is knotted for multiple times can be bent and damaged, so that the use effect of the differential pressure type liquid level transmitter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level transmitters, in particular to a differential pressure type liquid level transmitter. Background Art

[0002] A liquid level transmitter, also called a liquid level gauge, is a pressure sensor for measuring the liquid level. It is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, that is, a diffused silicon sensitive element or a ceramic capacitive pressure sensitive sensor is used to convert the static pressure into an electrical signal, and then through temperature compensation and linear correction, it is converted into a standard electrical signal. The liquid level transmitter is widely applicable to the liquid level measurement of various media in systems and industries such as petrochemical, metallurgy, electric power, pharmaceutical, water supply and drainage, and environmental protection.

[0003] In the prior art, due to the long connecting wires of traditional liquid level transmitters, they are often difficult to accommodate. After a long time, they are prone to being wound together and knotted. The knotted connecting wires not only affect the appearance, but also are prone to internal wire harness bending damage after multiple knots, reducing the use effect of the differential pressure type liquid level transmitter. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem in the prior art that due to the long connecting wires of traditional liquid level transmitters, they are prone to being wound together and knotted. The knotted connecting wires not only affect the appearance, but also are prone to internal wire harness bending damage after multiple knots, reducing the use effect of the differential pressure type liquid level transmitter, and to propose a differential pressure type liquid level transmitter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A differential pressure type liquid level transmitter, comprising: a wire take-up box and a transmitter body. The transmitter body is located on the front side of the wire take-up box body. The top of the wire take-up box is fixedly connected with a top plate, and a wire take-up component is arranged inside the wire take-up box; a wire take-up component, the wire take-up component includes a fixed block, the front surface of the fixed block is symmetrically and fixedly connected with bearing rods. The outer surfaces of the two bearing rods are fixedly penetrated through the inner surface of the wire take-up box near the rear surface. The rear surface of the fixed block is symmetrically and fixedly connected with first fixing rods. The outer surfaces of the two first fixing rods are fixedly connected with mounting blocks at positions far from the fixed block. A second fixing rod is fixedly connected between the opposite outer surfaces of the two mounting blocks. A rotating block is rotatably connected to the outer surface of the second fixing rod. The outer surfaces of the two first fixing rods are respectively slidably connected with sliding sleeves near the positions of the fixed block. Connecting rods are fixedly connected between the outer surfaces of the two sliding sleeves. A guiding block is fixedly connected to the middle position of the connecting rod. A wire is arranged inside the guiding block. The front surface of the wire is arranged on the rear surface of the transmitter body. Springs are respectively sleeved on the outer surfaces of the two first fixing rods near the rear surfaces of the two sliding sleeves.

[0006] Preferably, ring blocks are fixedly connected to the rear surfaces of the two sliding sleeves respectively, and the cross sections of the two ring blocks are larger than those of the two sliding sleeves.

[0007] Preferably, the spring is located between the opposite outer surfaces of the ring block and the mounting block, and the inner surface of the ring block is slidably connected to the first fixing rod.

[0008] Preferably, the outer surface of the wire penetrates through the inner surface of one side of the wire reel movably near the front surface, and the outer surface of the wire penetrates through the inner surface of the other side of the wire reel fixedly near the rear surface.

[0009] Preferably, the position of the bearing rod near the fixed block is curved, and the length of the bearing rod is greater than that of the first fixing rod.

[0010] Preferably, the wire is bent and folded, and the bent and folded part of the wire is located inside the wire reel.

[0011] Preferably, the outer surface of the wire fits the outer surface of the rotating block, and the wire and the rotating block are provided in a matching manner.

[0012] Preferably, guide frames are fixedly connected to the tops of the two mounting blocks, the position of the outer surface of the wire near the rear surface is located inside the guide frame, and the guide frame and the wire are provided in a matching manner.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0014] 1. In the present utility model, during use, through the combined use of the wire reel, the top plate, the transmitter body and the wire winding assembly, after it is fixed to the equipment or the installation location, the transmitter body is pulled, the wire rotates on the surface of the rotating block, and the guide block is pulled. When the two sliding sleeves and the two sliders move backward on the surfaces of the two first fixing rods, the two sliders squeeze the two springs, causing the two springs to deform and contract. The bent and folded part in the wire reel will be pulled out. At the same time, under the elastic reset action of the two springs, the excess wire outside will be pulled into the wire reel, avoiding that when the wire is too long, the too long wire is easily wound and knotted, which not only affects the appearance but also causes the internal wire bundles of the wire with multiple knots to be bent and damaged, improving the use effect of the differential pressure type liquid level transmitter.

[0015] 2. In the present utility model, during use, the cross sections of both sides of the rotating block are larger than the cross section at the center, and the center is concave. When the wire slides and rubs on its surface, due to the height difference between both sides and the center, the wire is always in the middle position, playing a guiding role, avoiding that when the wire is wound or unwound, the wire will deviate to the edge, making the wire horizontally inclined with the guide block, increasing the resistance when pulling the wire, and further improving the use effect of the differential pressure type liquid level transmitter. Description of the Drawings

[0016] Figure 1 This utility model provides a perspective view of a differential pressure type liquid level transmitter;

[0017] Figure 2 This utility model provides a cross-sectional view of a differential pressure type liquid level transmitter;

[0018] Figure 3 This utility model provides a schematic structural view of a wire winding assembly of a differential pressure type liquid level transmitter;

[0019] Figure 4 This utility model provides a schematic structural view of a rotating block of a differential pressure type liquid level transmitter;

[0020] Figure 5 This utility model provides a schematic structural view of a connecting rod of a differential pressure type liquid level transmitter.

[0021] Legend: 1. Wire winding box; 2. Top plate; 3. Transmitter body; 4. Wire winding assembly; 401. Fixed block; 402. Bearing rod; 403. First fixed rod; 404. Spring; 405. Connecting rod; 406. Conducting wire; 407. Mounting block; 408. Guide frame; 409. Second fixed rod; 410. Rotating block; 411. Sliding sleeve; 412. Ring block; 413. Guide block. Detailed Description of the Embodiment

[0022] In order to more clearly understand the above-mentioned objects, features and advantages of this utility model, the following further describes this utility model in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other.

[0023] In the following description, many specific details are set forth to fully understand this utility model. However, this utility model can also be implemented in other ways different from those described herein. Therefore, this utility model is not limited by the specific embodiments disclosed in the following specification.

[0024] Embodiment 1, as Figures 1 - 5As shown in the figure, the utility model provides a differential pressure type liquid level transmitter, which includes: a wire take-up box 1 and a transmitter body 3. The transmitter body 3 is located on the front side of the wire take-up box body 1. A top plate 2 is fixedly connected to the top of the wire take-up box 1, and a wire take-up assembly 4 is arranged inside the wire take-up box 1; the wire take-up assembly 4, the wire take-up assembly 4 includes a fixed block 401. Symmetrically fixed on the front surface of the fixed block 401 are bearing rods 402. The outer surfaces of the two bearing rods 402 penetrate through the inner surface of the wire take-up box 1 near the rear surface. Symmetrically fixed on the rear surface of the fixed block 401 are first fixed rods 403. At positions far from the fixed block 401 on the outer surfaces of the two first fixed rods 403 are respectively fixedly connected with mounting blocks 407. Between the opposite outer surfaces of the two mounting blocks 407 is fixedly connected with a second fixed rod 409. Rotatably connected to the outer surface of the second fixed rod 409 is a rotating block 410. Slide sleeves 411 are respectively slidably connected to the outer surfaces of the two first fixed rods 403 near the fixed block 401. Between the outer surfaces of the two slide sleeves 411 are fixedly connected with connecting rods 405. Fixedly connected to the middle position of the connecting rod 405 is a guide block 413. A wire 406 is arranged on the inner surface of the guide block 413. The front surface of the wire 406 is arranged on the rear surface of the transmitter body 3. Springs 404 are respectively sleeved on the outer surfaces of the two first fixed rods 403 near the rear surfaces of the two slide sleeves 411. Fixedly connected to the rear surfaces of the two slide sleeves 411 are ring blocks 412. The cross-sections of the two ring blocks 412 are larger than the cross-sections of the two slide sleeves 411. The springs 404 are located between the opposite outer surfaces of the ring blocks 412 and the mounting blocks 407. The inner surface of the ring block 412 is slidably connected to the first fixed rod 403. The outer surface of the wire 406 near the front surface movably penetrates through the inner surface of one side of the wire take-up box 1, and the outer surface of the wire 406 near the rear surface fixedly penetrates through the inner surface of the other side of the wire take-up box 1. The positions of the bearing rods 402 near the fixed block 401 are bent, the length of the bearing rods 402 is greater than the length of the first fixed rods 403, the wire 406 is in a bent and folded shape, and the bent and folded part of the wire 406 is located inside the wire take-up box 1.

[0025] The effect achieved by the entire Embodiment 1 is that when the differential pressure type liquid level transmitter is used, the wire reel 1 is fixed on the surface of the device. The top plate 2 closes the top of the wire reel 1. The outer surfaces of the two bearing rods 402 are fixed on the inner surface of the wire reel 1, so that the fixing block 401 connected to the bent part is suspended inside the wire reel 1. Hold the transmitter body 3 and pull it forward, driving the connected wire 406 to be drawn out from the wire reel 1. The wire 406 will frictionally slide on the outer surface of the rotating block 410, driving the rotating block 410 to rotate on the surface of the second fixing rod 409 fixed between the two mounting blocks 407, which plays a role in reducing friction. The wire 406 is bent and passes through the guiding block 413, and is fixed to the inner wall of the wire reel 1 near the rear end. Therefore, when the wire 406 is pulled and rotates on the outer surface of the rotating block 410, it will pull the guiding block 413, causing the connecting rod 405 to slide backward on the outer surfaces of the two first fixing rods 403 through the two sliding sleeves 411. The two ring blocks 412 will simultaneously squeeze the two springs 404, and the two springs 404 will deform and contract. As the two ring blocks 412 gradually move backward on the outer surfaces of the two first fixing rods 403, the wire extending inside the wire reel 1 will be drawn out. Similarly, when the distance between the transmitter body 3 and the wire reel 1 is less than the length of the wire 406 on the outside, under the elastic reset action of the two springs 404, the two sliding sleeves 411 are reset, driving the guiding block 413 to move forward to wind up the wire 406 on the outside. When the wire 406 is too long, it is likely to be wound and knotted, which not only affects the appearance but also causes the internal wire harness of the wire with multiple knots to be bent and damaged, improving the use effect of the differential pressure type liquid level transmitter.

[0026] Embodiment 2, as Figures 1 - 5 shown, the outer surface of the wire 406 is in contact with the outer surface of the rotating block 410. The wire 406 and the rotating block 410 are provided in a matching manner. The tops of the two mounting blocks 407 are both fixedly connected with guiding frames 408. The position of the outer surface of the wire 406 near the rear surface is located inside the guiding frame 408. The guiding frame 408 and the wire 406 are provided in a matching manner.

[0027] The effect achieved by the entire Embodiment 2 is that during use, the guide frame 408 fixed to the tops of the two mounting blocks 407 limits one side of the wire 406 near its rear end, keeping the wire 406 always in the middle position between the two first fixing rods 403, preventing large swings between the guide frame 408 and the wire winding box 1 during the wire winding or unwinding process. The cross-sections on both sides of the rotating block 410 are larger than the cross-section at the center, and the center is concave. When the wire 406 slides on its surface, due to the height difference between the two sides and the center, the wire 406 is always in the middle position, playing a guiding role and preventing the wire 406 from deviating towards the edge during wire winding or unwinding, causing the wire 406 to be horizontally inclined with respect to the guide block 413, increasing the resistance when pulling the wire 406, and improving the use effect of the differential pressure type liquid level transmitter.

[0028] Working principle: When the differential pressure type liquid level transmitter is in use, the wire reel 1 is fixed on the surface of the device. The top plate 2 closes the top of the wire reel 1. The outer surfaces of the two carrier rods 402 are fixed on the inner surface of the wire reel 1, so that the fixing block 401 connected to the bent part is suspended inside the wire reel 1. Hold the transmitter body 3 and pull it forward, driving the connected wire 406 to be drawn out from the wire reel 1. The wire 406 will frictionally slide on the outer surface of the rotating block 410, driving the rotating block 410 to rotate on the surface of the second fixing rod 409 fixed between the two mounting blocks 407, which plays a role in reducing friction. The wire 406 is bent and passes through the guiding block 413 and is fixed to the inner wall of the wire reel 1 near the rear end. Therefore, when the wire 406 is pulled and rotates on the outer surface of the rotating block 410, it will pull the guiding block 413, causing the connecting rod 405 to slide backward on the outer surfaces of the two first fixing rods 403 through the two sliding sleeves 411. The two ring blocks 412 will synchronously squeeze the two springs 404, and the two springs 404 will deform and contract. As the two ring blocks 412 gradually move backward on the outer surfaces of the two first fixing rods 403, the wire extending in the wire reel 1 will be drawn out. Similarly, when the distance between the transmitter body 3 and the wire reel 1 is less than the length of the wire 406 on the outside, under the elastic reset action of the two springs 404, the two sliding sleeves 411 are reset, driving the guiding block 413 to move forward to wind up the wire 406 in the outer process. When the wire 406 is too long, it is easy to wind and knot, which not only affects the appearance but also causes the internal wire harness of the wire with multiple knots to be bent and damaged, improving the use effect of the differential pressure type liquid level transmitter. The guiding frame 408 fixed on the tops of the two mounting blocks 407 limits one side of the wire 406 near its rear end, so that the wire 406 is always in the middle position between the two first fixing rods 403, preventing large swings between the guiding frame 408 and the wire reel 1 during the wire winding or unwinding process. The cross-sections on both sides of the rotating block 410 are larger than the cross-section at the center, and the center is concave. When the wire 406 slides and rubs on its surface, due to the height difference between the two sides and the center, the guiding 406 is always in the middle position, playing a guiding role, avoiding the wire 406 from deviating to the edge during the wire winding or unwinding, making the wire 406 horizontally inclined with the guiding block 413, increasing the resistance when pulling the wire 406, and improving the use effect of the differential pressure type liquid level transmitter.

[0029] The above is only a preferred embodiment of the present invention, and it does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A differential pressure type liquid level transmitter, characterized in that, Including: A wire take-up box (1) and a transmitter body (3), the transmitter body (3) is located on the front side of the wire take-up box (1), a top plate (2) is fixedly connected to the top of the wire take-up box (1), and a wire take-up assembly (4) is arranged inside the wire take-up box (1); The wire take-up assembly (4), the wire take-up assembly (4) includes a fixed block (401), a bearing rod (402) is symmetrically and fixedly connected to the front surface of the fixed block (401), and the outer surfaces of the two bearing rods (402) are fixedly penetrated through the inner surface of the wire take-up box (1) near the rear surface. A first fixing rod (403) is symmetrically and fixedly connected to the rear surface of the fixed block (401). Installation blocks (407) are respectively fixedly connected to the outer surfaces of the two first fixing rods (403) far away from the fixed block (401). A second fixing rod (409) is fixedly connected between the opposite outer surfaces of the two installation blocks (407). A rotating block (410) is rotatably connected to the outer surface of the second fixing rod (409). Sliding sleeves (411) are respectively slidably connected to the outer surfaces of the two first fixing rods (403) near the fixed block (401). Connecting rods (405) are fixedly connected between the outer surfaces of the two sliding sleeves (411). A guiding block (413) is fixedly connected to the middle position of the connecting rod (405). A wire (406) is arranged inside the guiding block (413). The front surface of the wire (406) is arranged on the rear surface of the transmitter body (3). Springs (404) are respectively sleeved on the outer surfaces of the two first fixing rods (403) near the rear surfaces of the two sliding sleeves (411).

2. The differential pressure type liquid level transmitter according to claim 1, wherein: Ring blocks (412) are respectively fixedly connected to the rear surfaces of the two sliding sleeves (411), and the cross-sections of the two ring blocks (412) are larger than the cross-sections of the two sliding sleeves (411).

3. The differential pressure type liquid level transmitter according to claim 2, wherein: The spring (404) is located between the opposite outer surfaces of the ring block (412) and the installation block (407), and the inner surface of the ring block (412) is slidably connected to the first fixing rod (403).

4. The differential pressure type liquid level transmitter according to claim 1, wherein: The outer surface of the wire (406) near the front surface movably penetrates through the inner surface of one side of the wire take-up box (1), and the outer surface of the wire (406) near the rear surface is fixedly penetrated through the inner surface of the other side of the wire take-up box (1).

5. The differential pressure type liquid level transmitter according to claim 1, characterized in that: The position of the bearing rod (402) near the fixed block (401) is bent, and the length of the bearing rod (402) is greater than the length of the first fixing rod (403).

6. The differential pressure type liquid level transmitter according to claim 1, characterized in that: The wire (406) is in a bent and folded shape, and the bent and folded part of the wire (406) is located inside the wire take-up box (1).

7. The differential pressure type liquid level transmitter according to claim 6, wherein: The outer surface of the wire (406) is attached to the outer surface of the rotating block (410), and the wire (406) and the rotating block (410) are arranged in a matching manner.

8. The differential pressure type liquid level transmitter according to claim 1, characterized in that: Guiding frames (408) are respectively fixedly connected to the tops of the two installation blocks (407), and the outer surface of the wire (406) near the rear surface is located inside the guiding frame (408), and the guiding frame (408) and the wire (406) are arranged in a matching manner.

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