Key sealing structure and ultrasonic transducer

Abstract

The utility model is applicable to the technical field of medical equipment, and provides a button sealing structure and an ultrasonic transducer, the button sealing structure comprises a button and a housing, the periphery of the button is provided with a groove, and the housing is internally provided with a sealing groove opposite to the groove; sealing glue is arranged in the sealing groove, and the groove, the sealing glue and the sealing groove abut against one another. Through the structure that the groove in the periphery of the key, the sealing groove of the shell and the sealant abut against one another, the sealant can be tightly attached to the key and the shell, the waterproof performance of the key is effectively improved, the key can be arranged on any end face of the shell due to the fact that the sealant is tightly attached to the key and the shell for water prevention, and the waterproof performance of the key is effectively improved. The size and the shape of the key can be set according to needs, a waterproof gasket matched with the key and the shell does not need to be customized, the cost is low, sealing is effective and reliable, and the sealing structure is beneficial to reducing the equipment fault risk and improving the efficiency of medical diagnosis.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a key sealing structure and an ultrasonic transducer. Background Art

[0002] In the medical field, ultrasonic transducers are key components of medical ultrasound systems and play a vital role in medical diagnosis. Ultrasonic transducers come into contact with the patient's body fluids during clinical use and need to be disinfected after use. Therefore, the ultrasonic transducer buttons need to be waterproof. Existing ultrasonic transducer waterproof methods mostly use gasket waterproofing. This method is to set a waterproof gasket between the transducer button and the shell to prevent moisture from entering the inside of the device. However, this method has certain limitations. Affected by the gasket structural parameters, the size and shape of the gasket have a great influence on the waterproof effect. If the gasket is too large or too small, it cannot effectively solve the problem of the button waterproof structure. The gasket cannot fit tightly to the shell. The force is uneven during use, which will affect the waterproof structure, such as partial detachment of the gasket, which can easily cause damage to the electronic components in the device, further increase the risk of equipment failure, and add unnecessary troubles in medical diagnosis. Utility Model Content

[0003] The embodiment of the utility model provides a key sealing structure, aiming to solve the problem of key sealing and waterproofing.

[0004] An embodiment of the utility model is implemented as follows: a key sealing structure includes a key and a shell, wherein a groove is arranged on the periphery of the key, and a sealing groove arranged opposite to the groove is arranged in the shell; a sealant is arranged in the sealing groove, and the groove, the sealant and the sealing groove abut against each other.

[0005] Furthermore, a support platform is provided in the sealing groove of the shell, and the support platform abuts against the groove.

[0006] Furthermore, the shell includes a first shell and a second shell, the side end of the first shell is provided with a limiting groove, the side end of the second shell is provided with a limiting strip matching the limiting groove, the limiting groove and the limiting strip are connected with a clearance fit, and the limiting groove and the limiting strip are filled with sealant.

[0007] Furthermore, the sealing groove comprises a sealing ring groove and a sealing vertical groove; the groove and the sealing ring groove abut against each other; and two ends of the sealing vertical groove are respectively connected to the limiting groove and the sealing ring groove.

[0008] Furthermore, an extrusion block of an integrally formed structure is arranged in the button body; a circuit board switch is installed in the shell, and the extrusion block abuts against the circuit board switch.

[0009] Furthermore, the button includes a positive button and a side button; the shell includes a first shell and a second shell; the end face of the first shell or the second shell is provided with a positive sealing groove arranged opposite to the groove, and a sealant is provided in the positive sealing groove, and the groove, sealant and positive sealing groove of the positive button abut against each other; a matching semi-sealing groove is provided in the connection between the first shell and the second shell, and the semi-sealing grooves abut against each other to form a side sealing groove, and a sealant is provided in the side sealing groove, and the groove, sealant and side sealing groove of the side button abut against each other.

[0010] Furthermore, the side ends of the shell are provided with anti-slip grooves.

[0011] Furthermore, the inner wall of the second shell is provided with a protrusion, the inner wall of the first shell is provided with a connecting base, and the protrusion is snap-connected with the connecting base.

[0012] Furthermore, a probe housing is installed at the side end of the housing.

[0013] The embodiment of the utility model further provides an ultrasonic transducer, comprising the key sealing structure.

[0014] The beneficial effects achieved by the utility model are as follows: the present application adopts a structure in which the grooves on the periphery of the keys, the sealing grooves of the shell and the sealant abut against each other, so that the sealant can fit tightly to the keys and the shell, thereby effectively improving the waterproof performance of the keys. Since the sealant fits tightly to the keys and the shell for waterproofing, the keys can be set on any end face of the shell, and the size and shape of the keys can be set as needed. There is no need to customize waterproof gaskets that match the keys and the shell, the cost is low, and the sealing is effective and reliable. This sealing structure helps to reduce the risk of equipment failure and improve the efficiency of medical diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the key structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the key and housing sealing structure of the utility model.

[0018] Figure 4 It is a cross-sectional schematic diagram of the key and housing sealing structure of the utility model.

[0019] Figure 5 It is a schematic diagram of the internal structure of the first shell and the second shell of the utility model.

[0020] The reference numerals are as follows: 1-button; 2-shell; 3-sealant; 4-circuit board switch; 5-anti-slip pattern; 6-probe shell; 11-groove; 12-button body; 13-extrusion block; 14-front button; 15-side button; 21-sealing groove; 22-first shell; 23-second shell; 211-support platform; 212-sealing ring groove; 213-sealing vertical groove; 214-semi-sealing groove; 215-side sealing groove; 221-limiting groove; 222-connecting base; 231-limiting strip; 232-bump. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The utility model has a structure in which the grooves on the periphery of the key, the sealing grooves of the shell and the sealant abut against each other, so that the sealant can fit the key and the shell tightly, thereby effectively improving the waterproof performance of the key.

[0023] Embodiment 1

[0024] Combination Figure 1-4 As shown, a key sealing structure includes a key 1 and a shell 2, wherein a groove 11 is arranged on the periphery of the key 1, and a sealing groove 21 arranged opposite to the groove 11 is arranged in the shell 2; a sealant 3 is arranged in the sealing groove 21, and the groove 11, the sealant 3 and the sealing groove 21 abut against each other.

[0025] Specifically, the periphery of the key 1 is provided with an inwardly recessed groove 11, and the base of the key 1 extends outward. The key 1 has a large base and a concave periphery. The outwardly extending base of the key 1 ensures the contact area with the sealing groove 21 and the sealant 3 in the shell 2. The sealing groove 21 in the shell 2 is stepped. The stepped sealing groove 21 can limit the displacement of the key 1 to prevent the key 1 from loosening and sliding off, and sealant 3 is provided in the sealing groove 21. The sealing groove 21 respectively abuts against the groove 11 of the key 1, and the sealant 3 and the sealing groove 21 abut against each other to form a closed structure. The sealant 3 fits the sealing groove 21 and the groove 11. The sealing structure in which the groove 11, the sealant 3 and the sealing groove 21 abut against each other can be set on any surface of the shell 2, and the waterproof sealing effect can be achieved without the need to cooperate with the existing sealing gasket or a sealing gasket specially made according to the waterproof requirement structure.

[0026] Furthermore, the sealant 3 can be firstly arranged in the sealing groove 21. In the subsequent assembly, the button 1 squeezes the sealant 3 to fit the groove 11 and the sealing groove 21. After the sealant 3 is cured, the groove 11, the sealant 3 and the sealing groove 21 abut against each other to form a waterproof and airtight structure. The groove 11 can also abut against the sealing groove 21 to form an enclosed space. The sealant 3 injected therein can fit the groove 11 and the sealing groove 21 to achieve a waterproof and sealing effect.

[0027] Embodiment 2

[0028] Combination Figure 1-4 As shown, a support platform 211 is provided in the sealing groove 21 of the housing 2, and the support platform 211 abuts against the groove 11. Specifically, the groove 11 of the key 1 can also be used to install and fix the key 1. The support platform 211 abuts against the groove 11 to limit the range of movement of the key 1, preventing the key 1 from loosening and falling off. At the same time, when the key 1 is pressed, the extrusion of the key 1 will not affect the sealing structure, ensuring that the surrounding structure of the key 1 is not affected.

[0029] Furthermore, the support platform 211 may be in a ring shape matching the shape of the groove 11 , and the support platform 211 may support the key 1 in a ring shape; the support platform 211 may also be in a protrusion 232 shape and arranged in the sealing groove 21 , and multiple support platforms 211 and the groove 11 may abut against each other to jointly support the key 1 .

[0030] Embodiment 3

[0031] Combination Figure 1 , Figure 3 and Figure 5 As shown, the shell 2 includes a first shell 22 and a second shell 23, the side end of the first shell 22 is provided with a limiting groove 221, the side end of the second shell 23 is provided with a limiting strip 231 matching the limiting groove 221, the limiting groove 221 and the limiting strip 231 are connected with a clearance fit, and the limiting groove 221 and the limiting strip 231 are filled with sealant 3.

[0032] Specifically, the limiting groove 221 is arranged around the connecting surface of the first shell 22 and the second shell 23, and the limiting strip 231 and the limiting groove 221 are clearance-matched, so that there is a certain cavity between the limiting strip 231 and the limiting groove 221, and the space between the limiting strip 231 and the limiting groove 221 is filled with sealant 3, which not only achieves the waterproof sealing effect of the connection between the first shell 22 and the second shell 23, but also enables the first shell 22 and the second shell 23 to be tightly bonded, thereby avoiding misalignment of the installation of the first shell 22 and the second shell 23.

[0033] Embodiment 4

[0034] Combination Figure 3 and Figure 4 As shown, the sealing groove 21 includes a sealing ring groove 212 and a sealing vertical groove 213; the groove 11 and the sealing ring groove 212 abut against each other; and the two ends of the sealing vertical groove 213 are respectively connected to the limiting groove 221 and the sealing ring groove 212.

[0035] Specifically, the sealing ring groove 212 is in a ring shape that matches the shape of the groove 11, and is fully abutted against the groove 11, structurally avoiding leakage of the sealant 3 to achieve a better waterproof sealing effect. The sealing vertical groove 213 is connected to the limiting groove 221 and the sealing ring groove 212 respectively. The limiting groove 221, the sealing vertical groove 213 and the limiting ring groove are filled with sealant 3. The sealant 3 fits the limiting groove 221, the sealing vertical groove 213, the limiting ring groove and the inner walls of the groove 11 to seal and bond the joints of the various components, so that the first shell 22, the second shell 23 and the button 1 can achieve an integrated sealing effect, reducing the risk of water seepage at the joints where the various components are connected to each other.

[0036] Embodiment 5

[0037] Combination Figure 1 and Figure 4 As shown, the button 1 includes a button body 12 , in which an extrusion block 13 of an integrally formed structure is disposed; a circuit board switch 4 is installed in the housing 2 , and the extrusion block 13 abuts against the circuit board switch 4 .

[0038] Specifically, the button 1 is formed by a two-color injection molding process. The hardness of the extrusion block 13 of the button 1 is less than the hardness of the outer wall of the button 1. The outer wall of the button 1 is used to be installed and fixedly connected with the shell 2. Pressing the extrusion block 13 to control the circuit board switch 4 will not affect the outer wall of the button 1, such as causing deformation, etc., and the one-piece molded structure of the button 1 can prevent moisture from penetrating from the button 1.

[0039] Embodiment 6

[0040] Combination Figure 1 , Figure 3 and Figure 4As shown, the key 1 includes a positive key 14 and a side key 15; the housing 2 includes a first housing 22 and a second housing 23; the end surface of any of the first housing 22 and the second housing 23 is provided with a positive sealing groove 21 arranged opposite to the groove 11, and a sealant 3 is arranged in the positive sealing groove 21, and the groove 11 of the positive key 14, the sealant 3 and the positive sealing groove 21 are in contact with each other. A matching semi-sealing groove 214 is provided in the connection between the first housing 22 and the second housing 23, and the semi-sealing grooves 214 are in contact with each other to form a side sealing groove 215, and a sealant 3 is arranged in the side sealing groove 215, and the groove 11 of the side key 15, the sealant 3 and the side sealing groove 215 are in contact with each other.

[0041] Specifically, the waterproofing of the side button 15 needs to consider the waterproofing of multiple parts assembly more than that of the front button 14. The semi-sealed grooves 214 of the first shell 22 and the second shell 23 match and abut against each other to form a complete side sealing groove 215. The groove 11, the sealant 3 and the side sealing groove 215 abut against each other to form a waterproof and airtight structure. The sealant 3 fits the gap between the semi-sealed grooves 214 of the two shells 2, which can ensure a good sealing effect of the connection of multiple parts and prevent moisture from penetrating from the connection between the first shell 22, the second shell 23 and the button 1. The sealant 3 has certain elasticity and toughness, can resist certain external force impact, and improve the service life and stability of the equipment.

[0042] Embodiment 7

[0043] Combination Figure 1 As shown, the side end of the housing 2 is provided with anti-skid patterns 5. Specifically, the anti-skid patterns 5 are mainly used to enhance friction and prevent the user from slipping when holding or operating the device. Further, the anti-skid patterns 5 can be stripes or protruding particles to increase friction.

[0044] Embodiment 8

[0045] Combination Figure 5 As shown, the inner wall of the second shell 23 is provided with a protrusion 232, and the inner wall of the first shell 22 is provided with a connecting base 222, and the protrusion 232 is snap-connected with the connecting base 222. Specifically, the connecting base 222 of the first shell 22 and the protrusion 232 of the second shell 23 are snap-connected for secondary fixation, reducing the risk of the shell 2 disintegrating.

[0046] Embodiment 9

[0047] Combination Figure 1 As shown, a probe housing 6 is installed at the side end of the housing 2. Specifically, the probe housing 6 is used to install other components of the ultrasonic transducer.

[0048] Embodiment 10

[0049] Combination Figure 1-5 As shown, an ultrasonic transducer includes the key 1 sealing structure described in any embodiment. The gripping shape of the housing 2 of the ultrasonic transducer conforms to the working of the human body, the middle shape is full, and the shapes of the two ends are contracted, which can be more comfortable and firm to hold. The key 1 sealing structure can be set on any end face of the housing 2, and the groove 11, the sealant 3 and the sealing groove 21 abut against each other to form a complete closed-loop seal. The sealing structure enables the key 1 to be connected and sealed with one or more parts to achieve a waterproof sealing effect.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A key sealing structure, characterized in that: It comprises a button and a shell, wherein the periphery of the button is provided with a groove, and the shell is provided with a sealing groove arranged opposite to the groove; Sealant is arranged in the sealing groove, and the groove, the sealant and the sealing groove abut against each other.

2. A key sealing structure according to claim 1, characterized in that: A support platform is arranged in the sealing groove of the shell, and the support platform is in abutment with the groove.

3. A key sealing structure according to claim 1, characterized in that: The shell includes a first shell and a second shell, the side end of the first shell is provided with a limiting groove, the side end of the second shell is provided with a limiting strip matching the limiting groove, the limiting groove and the limiting strip are connected with a clearance fit, and the limiting groove and the limiting strip are filled with the sealant.

4. A key sealing structure as claimed in claim 3, characterized in that: The sealing groove comprises a sealing ring groove and a sealing vertical groove; The groove and the sealing ring groove abut against each other; Two ends of the sealing vertical groove are respectively connected to the limiting groove and the sealing ring groove.

5. A key sealing structure according to claim 1, characterized in that: The button comprises a button body, in which an extrusion block having an integral structure with the button body is arranged; A circuit board switch is installed in the housing, and the extrusion block abuts against the circuit board switch.

6. A key sealing structure according to claim 1, characterized in that: The buttons include a front button and a side button; The housing comprises a first housing and a second housing; The end surface of the first shell or the second shell is provided with a positive sealing groove arranged opposite to the groove, a sealant is arranged in the positive sealing groove, and the groove of the positive key, the sealant and the positive sealing groove are in contact with each other; A matching semi-sealed groove is arranged in the connection between the first shell and the second shell, the semi-sealed grooves abut against each other to form a side sealed groove, a sealant is arranged in the side sealed groove, and the groove of the side button, the sealant and the side sealed groove abut against each other.

7. A key sealing structure according to claim 1, characterized in that: The side ends of the shell are provided with anti-slip grooves.

8. A key sealing structure according to claim 3 or 6, characterized in that: The inner wall of the second shell is provided with a protrusion, the inner wall of the first shell is provided with a connecting base, and the protrusion is clamped with the connecting base.

9. A key sealing structure according to claim 1, characterized in that: A probe housing is installed at the side end of the housing.

10. An ultrasonic transducer, characterized in that: The key sealing structure comprises the key sealing structure as described in any one of claims 1 to 9.

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