Shell for ultrasonic sensor

Abstract

The utility model relates to the technical field of ultrasonic sensors, and discloses a shell for an ultrasonic sensor, which comprises a shell, the side wall and the top wall of the shell are respectively provided with a stepped hole communicated with the inner cavity of the shell, and the inner wall of the upper stepped hole is combined with a first end cover. According to the shell for the ultrasonic sensor, the sealing assembly is arranged, after the sealing assembly is used, the extension cylinder can extend the contact path between the outside and the interior of the shell, mortar can be obstructed when entering the interior of the shell, the sealing ring has elasticity, and when the sealing ring is pushed into the inner wall of the shell to make contact with the inner wall of the shell, the sealing ring can abut against the inner wall of the shell; by arranging the sealing ring, mortar can be blocked by the sealing ring when flowing into a gap between the extension cylinder and the inner wall of the shell, and the protrusions and the notches abut against each other, so that tightness between the protrusions and the notches is better fit, sealing performance between the interior of the shell and the mortar is improved, and slurry is prevented from flowing into the interior of the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic sensors, in particular to a shell used for ultrasonic sensors. Background Art

[0002] Ultrasonic sensors are sensors that convert ultrasonic signals into other energy signals. Ultrasonic waves are mechanical waves with a vibration frequency higher than 20kHz. They have the characteristics of high frequency, short wavelength, small diffraction, and especially good directionality, and can become rays and propagate in a directional manner. Ultrasonic waves have a great ability to penetrate liquids and solids, especially in solids that are opaque to sunlight. When ultrasonic waves encounter impurities or interfaces, they will produce significant reflections to form reflected echoes, and when they encounter moving objects, they can produce the Doppler effect. Ultrasonic sensors are widely used in industry, national defense, biomedicine, etc.

[0003] After searching, Chinese patent CN213544819U was found and announced an ultrasonic sensor housing structure. The original integrated sensor housing was divided into three parts, and through structural improvements, the upper housing did not vibrate or vibrated very little, so the energy was not dissipated or dissipated very little, so the vibration energy was concentrated on the lower housing, i.e., the bottom of the housing body. The higher the energy, the longer the test distance, and ultimately the test distance of more than 5 meters for automatic parking can be achieved. It can be seen that the patent achieves the purpose of avoiding the vibration of the upper housing to increase the test distance of automatic parking. As the housing of the ultrasonic sensor used in various cast-in-place piles, the ultrasonic sensor housing must penetrate into the center of the drilled hole filled with mud, and the outer surface of the housing will be covered with mud. If the mud is allowed to flow into the housing, it will contaminate the ultrasonic sensor, causing the mud to penetrate into the components of the ultrasonic sensor and be damaged. For this reason, a housing for an ultrasonic sensor is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a shell for an ultrasonic sensor, which has the advantage of preventing mud from flowing into the interior of the ultrasonic sensor shell.

[0005] In order to achieve the above-mentioned purpose of preventing mud from flowing into the interior of the ultrasonic sensor housing, the utility model provides the following technical solutions: a housing for an ultrasonic sensor, comprising a housing, the side wall and the top wall of the housing are both provided with a stepped hole connected to the inner cavity of the housing, the inner wall of the upper stepped hole is combined with a first end cover, the inner wall of the side stepped hole is combined with a second end cover, and the inner walls of the front and rear stepped holes are combined with a third end cover, and the housing, the first end cover, the second end cover and the third end cover are provided with a sealing assembly for sealing the housing;

[0006] The sealing assembly includes an extension tube, a sealing ring, a protrusion and a notch. The extension tube is fixedly connected to the ends of the first end cover, the second end cover and the third end cover. The sealing ring is sleeved on the outer surface of the extension tube and abuts against the inner wall of the outer shell. The protrusion is fixedly connected to the inner wall of the outer shell. The notch is opened at the end of the extension tube, and the protrusion abuts against the notch accordingly.

[0007] Furthermore, the sealing ring is made of rubber, the protrusion is in a ring shape, and the notch is an arc-shaped inclined surface.

[0008] Furthermore, the first end cover, the second end cover and the third end cover are all provided with fastening screws threadedly connected to the outer shell, and the outer surface of the extension tube is provided with a groove for sleeve-engaging the sealing ring.

[0009] Furthermore, a mounting plate is inserted into the top of the first end cover, a locking pin threadedly connected to the first end cover is inserted into the mounting plate, a hinge seat is fixedly connected to the top center of the mounting plate, and a hanging rod is rotatably connected to the hinge seat.

[0010] Furthermore, a wire passing hole is provided on the first end cover and located on the outer side of the mounting plate, and a rubber sleeve is provided on the inner wall of the wire passing hole.

[0011] Compared with the prior art, the utility model provides a housing for an ultrasonic sensor, which has the following beneficial effects:

[0012] The shell for the ultrasonic sensor is provided with a sealing component. After the sealing component is used, the extension tube can extend the contact path between the outside and the inside of the shell, so that the mortar is hindered from entering the inside of the shell. The sealing ring is elastic. When the sealing ring is pushed into contact with the inner wall of the shell, it will abut against the inner wall of the shell, so that when the mortar flows into the gap between the extension tube and the inner wall of the shell, it will be blocked by the sealing ring, and the protrusion and the notch abut against each other, so that the tightness between the protrusion and the notch is more fitted, thereby improving the sealing between the inside of the shell and the mortar, and preventing mud from flowing into the inside of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the front structure of the utility model;

[0014] Figure 2 This is a front perspective cross-sectional view of the structure of the utility model;

[0015] Figure 3 It is a side stereoscopic sectional view of the structure of the utility model.

[0016] In the figure: 1 housing, 2 stepped hole, 3 first end cover, 4 second end cover, 5 third end cover, 6 sealing assembly, 61 extension tube, 62 sealing ring, 63 protrusion, 64 notch, 7 fastening screw, 8 slot, 9 mounting plate, 10 locking pin, 11 hinge seat, 12 hanging rod, 13 wire hole, 14 rubber sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 A shell for an ultrasonic sensor includes a shell 1, side walls and a top wall of the shell 1 are provided with stepped holes 2 connected to the inner cavity of the shell 1, the inner wall of the upper stepped hole 2 is combined with a first end cover 3, the inner wall of the side stepped hole 2 is combined with a second end cover 4, and the inner walls of the front and rear stepped holes 2 are combined with a third end cover 5. The first end cover 3, the second end cover 4 and the third end cover 5 are combined with the shell 1 in a plug-in manner, and the first end cover 3, the second end cover 4 and the third end cover 5 are all inserted with fastening screws 7 threadedly connected to the shell 1, which are used to assemble and disassemble the first end cover 3, the second end cover 4 and the third end cover 5 with the shell 1.

[0019] See also Figure 1-3 A mounting plate 9 is inserted at the top of the first end cover 3, and a locking pin 10 threadedly connected to the first end cover 3 is inserted on the mounting plate 9 for installing and removing the mounting plate 9. A hinge seat 11 is fixedly connected to the center of the top of the mounting plate 9, and a hanging rod 12 rotatably connected to the hinge seat 11 can be rotated around the hinge seat 11, so that the suspended shell 1 is in a vertical state.

[0020] In addition, a wire hole 13 is provided on the first end cover 3 and located on the outer side of the mounting plate 9, so that the cable can pass through the first end cover 3. A rubber sleeve 14 is provided on the inner wall of the wire hole 13 to ensure the sealing between the rubber sleeve 14 and the outer surface of the cable.

[0021] See also Figure 1-3A sealing assembly 6 for sealing the shell 1 is provided on the shell 1, the first end cover 3, the second end cover 4 and the third end cover 5. The sealing assembly 6 includes an extension tube 61, a sealing ring 62, a protrusion 63 and a notch 64. The extension tube 61 is fixedly connected to the ends of the first end cover 3, the second end cover 4 and the third end cover 5. The extension tube 61 is plugged into the inner wall of the shell 1, and the sealing ring 62 is sleeved on the outer surface of the extension tube 61 and abuts against the inner wall of the shell 1. The sealing ring 62 is made of rubber and has elasticity. When the extension tube 61 enters the inner wall of the shell 1, there is stress between the sealing ring 62 and the inner wall of the shell 1, so that the sealing ring 62 abuts against the inner wall of the shell 1, thereby ensuring the sealing of the shell 1. A card slot 8 for sleeved with the sealing ring 62 is provided on the outer surface of the extension tube 61, and the sealing ring 62 can be stretched and sleeved on the inner wall of the card slot 8.

[0022] In addition, the protrusion 63 is fixedly connected to the inner wall of the shell 1, and the notch 64 is opened at the end of the extension tube 61. The shape of the protrusion 63 is annular, and the protrusion 63 and the notch 64 are correspondingly abutted, so that the connection between the protrusion 63 and the extension tube 61 is tighter, ensuring the sealing performance between the protrusion 63 and the extension tube 61. The notch 64 is an arc-shaped inclined surface, which increases the contact area and path between the protrusion 63 and the extension tube 61, and improves the sealing performance between the protrusion 63 and the extension tube 61.

[0023] The beneficial effects of the above embodiments are:

[0024] The shell for the ultrasonic sensor is provided with a sealing component 6. After the sealing component 6 is used, the extension tube 61 can extend the contact path between the outside and the inside of the shell 1, so that the mortar will be hindered from entering the inside of the shell 1. The sealing ring 62 is elastic. When the sealing ring 62 is pushed into the inner wall of the shell 1, it will abut against the inner wall of the shell 1, so that when the mortar flows into the gap between the extension tube 61 and the inner wall of the shell 1, it will be blocked by the sealing ring 62, and the protrusion 63 and the notch 64 abut each other, so that the tightness between the protrusion 63 and the notch 64 is more fitted, thereby improving the sealing between the inside of the shell 1 and the mortar, and preventing mud from flowing into the inside of the shell 1.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A housing for an ultrasonic sensor, comprising a housing (1), the side wall and the top wall of the housing (1) are both provided with a stepped hole (2) communicating with the inner cavity of the housing (1), the inner wall of the upper stepped hole (2) is combined with a first end cover (3), the inner wall of the side stepped hole (2) is combined with a second end cover (4), and the inner walls of the front and rear stepped holes (2) are combined with a third end cover (5), characterized in that: The housing (1), the first end cover (3), the second end cover (4) and the third end cover (5) are provided with a sealing assembly (6) for sealing the housing (1); The sealing assembly (6) comprises an extension tube (61), a sealing ring (62), a protrusion (63) and a notch (64); the extension tube (61) is fixedly connected to the ends of the first end cover (3), the second end cover (4) and the third end cover (5); the sealing ring (62) is sleeved on the outer surface of the extension tube (61) and abuts against the inner wall of the outer shell (1); the protrusion (63) is fixedly connected to the inner wall of the outer shell (1); the notch (64) is provided at the end of the extension tube (61); the protrusion (63) and the notch (64) are correspondingly abutted.

2. A housing for an ultrasonic sensor according to claim 1, characterized in that: The sealing ring (62) is made of rubber, the protrusion (63) is in the shape of a ring, and the notch (64) is an arc-shaped inclined surface.

3. A housing for an ultrasonic sensor according to claim 1, characterized in that: The first end cover (3), the second end cover (4) and the third end cover (5) are all provided with fastening screws (7) threadedly connected to the outer shell (1), and the outer surface of the extension tube (61) is provided with a groove (8) for sleeve-engaging the sealing ring (62).

4. A housing for an ultrasonic sensor according to claim 1, characterized in that: A mounting plate (9) is inserted into the top of the first end cover (3), a locking pin (10) threadedly connected to the first end cover (3) is inserted into the mounting plate (9), a hinge seat (11) is fixedly connected to the center of the top of the mounting plate (9), and a hanging rod (12) is rotatably connected to the hinge seat (11).

5. A housing for an ultrasonic sensor according to claim 4, characterized in that: A wire passing hole (13) is provided on the first end cover (3) and is located on the outer side of the mounting plate (9), and a rubber sleeve (14) is provided on the inner wall of the wire passing hole (13).

Images