Probe structure of tuning fork level switch

Abstract

The utility model relates to the technical field of tuning fork level switches, and discloses a probe structure of a tuning fork level switch, which comprises a telescopic tuning fork probe structure, the top of the telescopic tuning fork probe structure is fixedly connected with a connecting sleeve, the top of the connecting sleeve is fixedly connected with a flange plate, and the top of the flange plate is provided with a tuning fork level switch main body. The telescopic tuning fork probe structure comprises a telescopic sleeve fixedly connected to one side of the bottom of the connecting sleeve, a tuning fork is inserted into an inner cavity of the telescopic sleeve, a plurality of fixed insertion holes which are evenly distributed at equal intervals are formed in one side of the outer wall of the tuning fork, and sliding grooves are symmetrically formed in the two sides of the inner wall of the telescopic sleeve; when the device is used, the length of the probe can be flexibly adjusted according to needs, and the device is convenient to operate, high in flexibility and practicability, convenient to use and beneficial to improving the practicability of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of tuning fork level switches, and more specifically to a probe structure of a tuning fork level switch. Background Art

[0002] The tuning fork level switch is a new type of level control switch. It mainly relies on the tuning fork to measure the level height through the vibration principle. The working principle of the tuning fork level controller is to make the tuning fork vibrate at a certain resonant frequency through a pair of piezoelectric crystals installed on the tuning fork base. When the tuning fork contacts the measured medium, the frequency and amplitude of the tuning fork will change. These changes are detected, processed and converted into a switch signal by the intelligent circuit. The tuning fork level switch is easy to measure materials of different states and densities due to its adjustable amplitude. It is suitable for fixed-point detection, alarm or control of the level of solid materials in various silos and the level of liquids in various containers.

[0003] A tuning fork level switch generally includes a vibrator and a tuning fork probe. However, the length of the existing tuning fork level switch probe is fixed, so it cannot be flexibly adjusted according to the height of the measured medium, and its applicability is low. Therefore, we propose a probe structure of a tuning fork level switch to solve the above problem. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the utility model provides a probe structure of a tuning fork level switch to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solutions: a probe structure of a tuning fork level switch, comprising a telescopic tuning fork probe structure, a connecting sleeve fixedly connected to the top of the telescopic tuning fork probe structure, a flange fixedly connected to the top of the connecting sleeve, a tuning fork level switch body arranged on the top of the flange, the telescopic tuning fork probe structure comprising a telescopic sleeve fixedly connected to one side of the bottom of the connecting sleeve, a tuning fork inserted into the inner cavity of the telescopic sleeve, a plurality of fixed jacks uniformly and equidistantly distributed on one side of the outer wall of the tuning fork, sliding grooves symmetrically opened on both sides of the inner wall of the telescopic sleeve, sliding blocks symmetrically fixedly connected to the tops of both sides of the outer wall of the tuning fork, and a fixing mechanism fixedly connected to the bottom of one side of the telescopic sleeve.

[0006] Preferably, the number of the telescopic tuning fork probe structures is two and they are symmetrically distributed.

[0007] The block and the slide groove form a sliding limit structure.

[0008] Preferably, the fixing mechanism comprises a U-shaped mounting frame fixedly connected to the bottom of one side of the telescopic sleeve, and a pull rod is arranged on the side of the U-shaped mounting frame away from the telescopic sleeve, and the pull rod is close to the U-shaped mounting frame.

[0009] One end of the mounting frame is fixedly connected to a limit clamping plate, and the side of the limit clamping plate away from the pull rod is fixedly connected to a moving rod, and the moving rod passes through one end of the U-shaped mounting frame and is fixedly connected to a moving plate.

[0010] A spring is sleeved on one end of the rod close to the moving plate, and a fixed plug rod is fixedly connected to one end of the moving plate away from the spring.

[0011] Preferably, the spring is arranged between the inner wall of the U-shaped mounting frame and the movable plate, and the fixed insertion rod passes through the telescopic sleeve and extends to the inside of the fixed insertion hole.

[0012] Preferably, the fixed plug rod is matched with the fixed plug hole, the inner walls on both sides of the U-shaped mounting frame are symmetrically provided with sliding grooves, and the two sides of the movable plate are symmetrically fixedly connected with sliding blocks, and the sliding blocks

[0013] A sliding connection structure is formed with the sliding groove.

[0014] Preferably, a moving groove is provided in the middle of a side of the U-shaped mounting frame away from the telescopic sleeve, and a limiting slot is provided on a side of the U-shaped mounting frame away from the telescopic sleeve, and the moving groove is communicated with the limiting slot.

[0015] Technical effects and advantages of the utility model:

[0016] When the utility model is in use, the pull rod is pulled outward, thereby driving the limit card plate to move outward along the moving slot, and the limit card plate drives the moving rod to move outward, thereby driving the moving plate to move outward to squeeze the spring, thereby driving the fixed plug rod to move outward and disengage from the fixed plug hole. At this time, the spring is in a compressed state, and then, the pull rod is rotated 90 degrees, so that the limit card plate is rotated 90 degrees and is clamped on the limit card slot, and the pull rod is released to complete the limitation of the fixed plug rod. Then, the tuning fork is pulled downward to move. After the required length is adjusted, it is only necessary to pull the pull rod outward and rotate it 90 degrees. Then, the pull rod is released, and under the rebound force of the moving rod, the fixed plug rod is pushed to move toward the fixed plug hole, so that the fixed plug rod is inserted into

[0017] The probe can be fixed in the fixed socket, so the length of the probe can be flexibly adjusted according to the needs. The operation is convenient, the flexibility and practicality are strong, and the use is convenient, which is conducive to improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the telescopic tuning fork probe structure of the utility model.

[0020] Figure 3 for Figure 2A is an enlarged structural diagram of FIG.

[0021] Figure 4 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0022] The accompanying drawings are marked as follows: 1. telescopic tuning fork probe structure; 101. telescopic sleeve; 102. tuning fork; 103. slider; 104. slide groove; 105. fixed socket; 2. connecting sleeve; 3. flange; 4. tuning fork level switch body; 5. fixing mechanism; 51. U-shaped mounting frame; 52. moving groove; 53. limit card slot; 54. pull rod; 55. limit card plate; 56. moving rod; 57. spring; 58. moving plate; 59. fixed plug rod; 510. sliding block; 511. sliding groove. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The probe structure of a tuning fork level switch involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0024] The utility model provides a probe structure of a tuning fork level switch, please refer to Figure 1-4 As shown, it includes a telescopic tuning fork probe structure 1, a connecting sleeve 2 is fixedly connected to the top of the telescopic tuning fork probe structure 1, a flange 3 is fixedly connected to the top of the connecting sleeve 2, a tuning fork level switch body 4 is arranged on the top of the flange 3, and the telescopic tuning fork probe structure 1 includes a telescopic sleeve 101 fixedly connected to one side of the bottom of the connecting sleeve 2,

[0025] A tuning fork 102 is inserted into the inner cavity of the telescopic sleeve 101, and a plurality of fixed jacks 105 are evenly and equidistantly distributed on one side of the outer wall of the telescopic sleeve 101. Slide grooves 104 are symmetrically opened on both sides of the inner wall of the telescopic sleeve 101. Slide blocks 103 are symmetrically fixedly connected to the top of both sides of the outer wall of the tuning fork 102. The bottom of one side of the telescopic sleeve 101 is fixed.

[0026] A fixing mechanism 5 is fixedly connected, the number of the telescopic tuning fork probe structures 1 is two and they are symmetrically distributed, and the slider 103 and the slide groove 104 constitute a sliding limiting structure.

[0027] In the embodiment of the present application, when in use, first, the device is installed at the position required for detection, and then, according to the height of the medium to be detected, the length of the telescopic tuning fork probe structure 1 is flexibly adjusted, and the pull rod 54 is pulled outward, thereby driving the limit card plate 55 to move outward along the moving groove 52, and the limit card plate 55 drives the moving rod 56 to move outward, thereby driving the moving plate 58 to move outward to squeeze the spring 57, thereby driving the fixed plug rod 59 to move outward and disengage from the fixed plug hole 105. At this time, the spring 57 is in a compressed state, and then, the pull rod 54 is rotated. 90 degrees, so that the limit card plate 55 is rotated 90 degrees and is fixed on the limit card slot 53, and the pull rod 54 is released to complete the limiting of the fixed plug rod 59, and then, the tuning fork 102 is pulled downward. After the required length is adjusted, it is only necessary to pull the pull rod 54 outward and rotate it 90 degrees. Then, the pull rod 54 is released, and under the rebound force of the moving rod 56, the fixed plug rod 59 will be pushed to move toward the fixed socket 105, so that the fixed plug rod 59 can be inserted into the fixed socket 105 to complete the fixation. The operation is convenient, flexible and practical, and easy to use.

[0028] Furthermore, the fixing mechanism 5 includes a U-shaped mounting frame 51 fixedly connected to the bottom of one side of the telescopic sleeve 101, a pull rod 54 is arranged on the side of the U-shaped mounting frame 51 away from the telescopic sleeve 101, and the end of the pull rod 54 close to the U-shaped mounting frame 51 is fixedly connected to a limiting clamping plate 55, and the side of the limiting clamping plate 55 away from the pull rod 54 is fixedly connected to a moving rod 56, and the moving rod 56 passes through one end of the U-shaped mounting frame 51 and is fixedly connected to a moving plate 58, and the end of the moving rod 56 close to the moving plate 58 is sleeved with a spring 57, and the end of the moving plate 58 away from the spring 57 is fixedly connected to a fixed plug rod 59, and the spring 57 is arranged between the inner wall of the U-shaped mounting frame 51 and the moving plate 58, and the fixed plug rod 59 passes through the telescopic sleeve 101 and extends to the fixed socket 105 53 is provided on the side of the U-shaped mounting frame 51 away from the telescopic sleeve 101, and the moving groove 52 is communicated with the limiting groove 53. When in use, the pull rod 54 is pulled outward, thereby driving the limiting card plate 55 to move outward along the moving groove 52, and the limiting card plate 55 drives the moving rod 56 to move outward, thereby driving the moving plate 58 to move outward to squeeze the spring 57, thereby driving the fixed plug rod 59 to move outward and disengage from the fixed plug hole 105. At this time, the spring 57 In the compressed state, then, rotate the pull rod 54 90 degrees, so that the limit card plate 55 is rotated 90 degrees and clamped on the limit card slot 53, and release the pull rod 54 to complete the limitation of the fixed plug rod 59. Then, pull the tuning fork 102 to move downward. After adjusting the required length, just pull the pull rod 54 outward and rotate it 90 degrees. Then, release the pull rod 54. Under the rebound force of the moving rod 56, the fixed plug rod 59 will be pushed to move toward the fixed socket 105, so that the fixed plug rod 59 can be inserted into the fixed socket 105 to complete the fixation.

[0029] Furthermore, the fixed plug rod 59 is adapted to the fixed socket 105, and sliding grooves 511 are symmetrically provided on the inner walls on both sides of the U-shaped mounting frame 51. Sliding blocks 510 are symmetrically fixedly connected on both sides of the movable plate 58. The sliding blocks 510 and the sliding grooves 511 constitute a sliding connection structure. When in use, the sliding blocks 510 slide left and right along the sliding grooves 511, thereby making the movement of the movable plate 58 more stable.

[0030] The working principle of the utility model is as follows: when in use, first, the device is installed at the position required for detection, and then, according to the height of the medium to be detected, the length of the telescopic tuning fork probe structure 1 is flexibly adjusted, and the pull rod 54 is pulled outward, thereby driving the limit card plate 55 to move outward along the moving groove 52, and the limit card plate 55 drives the moving rod 56 to move outward, thereby driving the moving plate 58 to move outward to squeeze the spring 57, thereby driving the fixed plug rod 59 to move outward and disengage from the fixed plug hole 105, at this time, the spring 57 is in a compressed state, and then, the pull rod 5 is rotated. 490 degrees, so that the limit card plate 55 is rotated 90 degrees and clamped on the limit card slot 53, and the pull rod 54 is released to complete the limiting of the fixed plug rod 59, and then, the tuning fork 102 is pulled downward. After the required length is adjusted, it is only necessary to pull the pull rod 54 outward and rotate it 90 degrees. Then, the pull rod 54 is released, and under the rebound force of the moving rod 56, the fixed plug rod 59 will be pushed to move toward the fixed socket 105, so that the fixed plug rod 59 can be inserted into the fixed socket 105 to complete the fixation. The operation is convenient, flexible and practical, and easy to use.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Secondly: The drawings of the embodiments disclosed in this utility model only involve

[0033] The structure, other structures can refer to the usual design, in the absence of conflict, the same embodiment of the utility model and different embodiments can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A probe structure of a tuning fork level switch, comprising a telescopic tuning fork probe structure (1), characterized in that: The top of the telescopic tuning fork probe structure (1) is fixedly connected to a connecting sleeve (2), the top of the connecting sleeve (2) is fixedly connected to a flange (3), the top of the flange (3) is provided with a tuning fork level switch body (4), the telescopic tuning fork probe structure (1) comprises a telescopic sleeve (101) fixedly connected to one side of the bottom of the connecting sleeve (2), a tuning fork (102) is inserted into the inner cavity of the telescopic sleeve (101), a plurality of fixed jacks (105) evenly and equidistantly distributed are provided on one side of the outer wall of the tuning fork (102), sliding grooves (104) are symmetrically provided on both sides of the inner wall of the telescopic sleeve (101), sliding blocks (103) are symmetrically fixedly connected to the tops of both sides of the outer wall of the tuning fork (102), and a fixing mechanism (5) is fixedly connected to the bottom of one side of the telescopic sleeve (101).

2. The probe structure of a tuning fork level switch according to claim 1, characterized in that: The number of the telescopic tuning fork probe structures (1) is two and they are symmetrically distributed, and the sliding block (103) and the sliding groove (104) form a sliding limiting structure.

3. The probe structure of a tuning fork level switch according to claim 1, characterized in that: The fixing mechanism (5) comprises a U-shaped mounting frame (51) fixedly connected to the bottom of one side of the telescopic sleeve (101); a pull rod (54) is provided on the side of the U-shaped mounting frame (51) away from the telescopic sleeve (101); an end of the pull rod (54) close to the U-shaped mounting frame (51) is fixedly connected to a limiting clamping plate (55); a side of the limiting clamping plate (55) away from the pull rod (54) is fixedly connected to a moving rod (56); one end of the moving rod (56) passing through the U-shaped mounting frame (51) is fixedly connected to a moving plate (58); an end of the moving rod (56) close to the moving plate (58) is sleeved with a spring (57); and an end of the moving plate (58) away from the spring (57) is fixedly connected to a fixed plug rod (59).

4. The probe structure of a tuning fork level switch according to claim 3 is characterized in that The spring (57) is arranged between the inner wall of the U-shaped mounting frame (51) and the movable plate (58), and the fixed insertion rod (59) passes through the telescopic sleeve (101) and extends to the interior of the fixed insertion hole (105).

5. The probe structure of a tuning fork level switch according to claim 4, characterized in that The fixed plug rod (59) is matched with the fixed plug hole (105), the inner walls on both sides of the U-shaped mounting frame (51) are symmetrically provided with sliding grooves (511), and the sliding blocks (510) are symmetrically fixedly connected to the two sides of the movable plate (58), and the sliding blocks (510) and the sliding grooves (511) form a sliding connection structure.

6. The probe structure of a tuning fork level switch according to claim 5, characterized in that: A moving groove (52) is provided in the middle of a side of the U-shaped mounting frame (51) away from the telescopic sleeve (101), and a limiting clamping groove (53) is provided on a side of the U-shaped mounting frame (51) away from the telescopic sleeve (101), and the moving groove (52) is in communication with the limiting clamping groove (53).

Images