Novel end portion contraction protection type high-insulation pressure sensor

Abstract

The utility model relates to a novel end portion contraction protection type high-insulation pressure sensor comprising a main body and an upper shell which are fixedly connected. The upper shell comprises an outer shell, a sealing element and a contact part, the contact part is movably connected with the outer shell through the sealing element, the contact part is separated from the outer shell, the contact part is in contact with the sealing element, the contact part is separated from the sealing element, and the sealing element is fixedly connected with the outer shell; the contact part comprises a detection part and a connection part; the sealing piece comprises internal liquid and external skin, and the skin comprises a connecting position and a contraction position. The utility model provides a novel end portion contraction protection type high-insulation pressure sensor, which avoids the reduction of the insulativity of the pressure sensor, ensures that the detection accuracy of the pressure sensor is good, prolongs the service life of the pressure sensor, and improves the applicability of the pressure sensor to the environment due to the good insulativity of the pressure sensor.

Description

Technical Field

[0001] The utility model relates to the field of pressure sensors, in particular to a novel end shrinkage protection type high insulation pressure sensor. Background Art

[0002] A pressure sensor is a type of sensor that detects pressure signals. During use, the product being detected contacts the sensing surface of the pressure sensor and generates pressure on the contact surface of the pressure sensor, causing its position to partially change. The signal detection mechanism inside the pressure sensor detects the pressure signal. Since the pressure sensor is subjected to pressure during use, the gap on the pressure sensor will become larger and larger after long-term use, making it easy for dust to enter the pressure sensor.

[0003] After long-term use, the gaps on the outer shell of the commonly used pressure sensors will become larger and larger, causing the insulation of the pressure sensors to decrease and reducing the detection accuracy of the pressure sensors. This problem needs to be solved urgently. Utility Model Content

[0004] The purpose of the utility model is to provide a novel end shrinkage protection type high insulation pressure sensor to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel end shrinkage protection type high insulation pressure sensor comprises a main body and an upper shell, wherein the main body and the upper shell are fixedly connected;

[0007] The upper shell includes an outer shell, a sealing member and a contact portion, wherein the contact portion is movably connected to the outer shell through the sealing member, the contact portion is separated from the outer shell, the contact portion is in contact with the sealing member, the contact portion is separated from the sealing member, and the sealing member is fixedly connected to the outer shell;

[0008] The contact portion includes a detection portion and a connection portion;

[0009] The seal includes a liquid interior and an outer skin including joints and constrictions.

[0010] Furthermore, the sealing component, the housing and the detection part are concentric.

[0011] Furthermore, the cross section of the sealing member is circular, and the sealing member is located in a mounting groove of the housing facing the contact portion.

[0012] Furthermore, the connection point and the contraction point are sealed and connected, and the liquid is specifically hydraulic oil.

[0013] Furthermore, the connection portion is fixedly connected to a groove wall of a mounting groove of the housing facing the contact portion, and the contraction portion is separated from the housing and the contact portion.

[0014] Furthermore, the connection portion is specifically made of a rigid material, and the contraction portion is specifically made of an elastic material.

[0015] Furthermore, the material of the connection is specifically plastic, the connection is specifically bonded to the groove wall of the installation groove of the housing facing the contact part, and the material of the contraction part is specifically silicone rubber.

[0016] Furthermore, a first groove is provided on the shell, the track of the first groove is specifically circular, and a rounded corner is provided on the surface of the shell facing the sealing element.

[0017] Furthermore, a second groove is arranged on the contact portion, the track of the second groove is specifically circular, and a rounded corner is arranged on the surface of the contact portion facing the sealing member.

[0018] Furthermore, the portion of the connection part located at the seal is in a truncated cone shape, the surface of the connection part in contact with the seal is an inclined surface, the cross-section of the connection part is specifically circular, and the diameter of the connection part away from the detection part is smaller than the diameter close to the detection part.

[0019] The beneficial effects of the utility model are: providing a new end-shrinkage protected high-insulation pressure sensor, through the mutual cooperation of the main body, the upper shell, the outer shell, the seal and the contact part, a new end-shrinkage protected high-insulation pressure sensor is manufactured to replace the traditional pressure sensor, so that the seal is deformed when the pressure sensor is working, and the effect of preventing external debris from entering the pressure sensor through the gap of the pressure sensor is avoided, thereby avoiding the reduction of the insulation of the pressure sensor, ensuring the good detection accuracy of the pressure sensor, and improving the service life of the pressure sensor. Due to the good insulation of the pressure sensor, the applicability of the pressure sensor to the environment is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric diagram of the overall structure of a novel end-shrinkage-protected high-insulation pressure sensor of the utility model.

[0021] Figure 2 This is a front view of the overall structure of a novel end-shrinkage protection type high-insulation pressure sensor of the utility model.

[0022] Figure 3 This is a partial structural axonometric diagram of a novel end-shrinkage-protected high-insulation pressure sensor with a seal according to the utility model.

[0023] Figure 4This is a partial structural front view of a novel end shrinkage protection type high insulation pressure sensor of the utility model.

[0024] Figure 5 The utility model is a cross-sectional view of a seal of a novel end-shrinkage protection type high-insulation pressure sensor.

[0025] Figure 6 This is a partial structural axonometric diagram of a novel end shrinkage protection type high insulation pressure sensor without a seal according to the utility model.

[0026] In the figure: 1. main body; 2. upper shell; 3. outer shell; 4. first groove; 5. contact part; 6. sealing part; 61. connection part; 62. contraction part; 7. detection part; 8. connection part; 9. second groove. DETAILED DESCRIPTION

[0027] 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 herein are only used to explain the utility model and are not used to limit the utility model. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described in the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] In the description of the present utility model, it is necessary to understand that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] refer to Figures 1 to 6 A novel end shrinkage protection type high insulation pressure sensor comprises a main body 1 and an upper shell 2, wherein the main body 1 and the upper shell 2 are fixedly connected, the main body is provided with a functional component of the pressure sensor, and the upper shell is provided with a detection component of the pressure sensor, and the two cooperate with each other to complete the pressure signal detection step of the pressure sensor;

[0030] The upper shell 2 includes a shell 3, a sealing member 6 and a contact portion 5. The contact portion 5 is movably connected to the shell 3 through the sealing member 6, and is used to generate pressure on the detection portion 5 when the product contacts the detection portion 7 on the contact portion 5. During this process, the connecting portion 8 generates pressure on the sealing member 6, causing the contraction portion 62 of the sealing member 6 to deform. As the connecting portion 8 continuously moves toward the main body 1, the shape of the contraction portion 62 continuously changes. During this process, the space between the connecting portion 8 and the shell 3 becomes smaller and smaller, and the contraction portion 62 is continuously squeezed out from between the connecting portion 8 and the shell 3. During this process, the squeezed contraction portion 62 moves toward the first groove 4 and the second groove 9 moves, during which the contraction portion 62 pushes dust, particles and other debris into the first groove 4 and the second groove 9, the contact portion 5 is separated from the housing 3, so that there is space between the two to place the seal 6, and ensure that the two can generate relative movement, the contact portion 5 is in contact with the seal 6, so as to prevent external debris from passing through the housing 3 and the connecting portion 8 to reach the main body 1, thereby ensuring good insulation of the pressure sensor, the contact portion 5 is separated from the seal 6, so as to ensure that the shape of the seal 6 can change, and the seal 6 is fixedly connected to the housing 3, so as to avoid separation from the housing 3 when the seal 6 is deformed;

[0031] The contact portion 5 includes a detection portion 7 and a connection portion 8, wherein the detection portion 7 is used to contact the product, and the connection portion 8 is used to contact the sealing member 6;

[0032] The seal 6 includes an internal liquid and an external outer skin, which are used to ensure that the shape of the seal 6 can change and recover. The outer skin includes a connection point 61 and a contraction point 62. The main body 1 and the upper shell 2 are electrically connected to transmit signals. The main body 1 is electrically connected to an external control system to transmit pressure signals.

[0033] The sealing member 6 , the housing 3 and the detection part 7 are concentric, so as to ensure that the sealing member 6 is subjected to uniform force at all positions when the sealing member 6 is deformed.

[0034] The cross section of the seal 6 is circular, which is used to ensure that the seal 6 is evenly stressed at all positions when the seal 6 is deformed. The seal 6 is located in the installation groove of the shell 3 facing the contact part 5, which is used to ensure that the part of the seal 6 that contacts the shell 3 will not be deformed, ensuring that the connection between the seal 6 and the shell 3 is stable.

[0035] The connection part 61 and the contraction part 62 are sealed and connected, and the liquid is specifically hydraulic oil, which is used to form the sealing member 6 .

[0036] The connection 61 is fixedly connected to the groove wall of the installation groove of the shell 3 toward the contact part 5, which is used to ensure that the part of the seal 6 that contacts the shell 3 will not be deformed, ensuring the stability of the connection between the seal 6 and the shell 3. The contraction part 62 is separated from the shell 3 and the contact part 5, which is used to ensure that the shape of the contraction part 62 can change, and when the contraction part 62 changes, it is used to prevent external debris from reaching the main body 1 through the shell 3 and the connection part 8.

[0037] The connection 61 is specifically made of a rigid material, and is used to ensure that the portion of the seal 6 that contacts the housing 3 will not be deformed, and to ensure that the connection between the seal 6 and the housing 3 is stable. The contraction 62 is specifically made of an elastic material, and is used to ensure that the shape of the contraction 62 can change, and when the contraction 62 changes, it is used to prevent external debris from passing through the housing 3 and the connection 8 to reach the main body 1.

[0038] The material of the connection 61 is specifically plastic, and the connection 61 is specifically bonded to the groove wall of the installation groove of the shell 3 toward the contact part 5, which is used to ensure that the part of the seal 6 that contacts the shell 3 will not be deformed, and ensure that the stability of the connection between the seal 6 and the shell 3 is good. The material of the contraction 62 is specifically silicone rubber, which is used to ensure that the shape of the contraction 62 can change, and when the contraction 62 changes, it is used to prevent external debris from passing through the shell 3 and the connection part 8 to reach the main body 1.

[0039] The shell 3 is provided with a first groove 4 for collecting debris pushed by the contraction 62 when the seal 6 is deformed. The trajectory of the first groove 4 is specifically circular. The shell 3 is provided with a rounded corner on the surface facing the seal 6 to prevent the right-angle edge from damaging the contraction 62.

[0040] The contact portion 5 is provided with a second groove 9 for collecting debris pushed by the contraction portion 62 when the seal 6 is deformed. The trajectory of the second groove 9 is specifically circular. The contact portion 5 is provided with a rounded corner on the surface facing the seal 6 to prevent the right-angle edge from damaging the contraction portion 62.

[0041] The portion of the connecting portion 8 located at the sealing member 6 is in the shape of a truncated cone, the surface where the connecting portion 8 contacts the sealing member 6 is an inclined surface, the cross-section of the connecting portion 8 is specifically circular, and the diameter of the connecting portion 8 away from the detecting portion 7 is smaller than the diameter close to the detecting portion 7, so as to ensure good sealing performance of the contact portion between the connecting portion 8 and the contraction portion 62.

[0042] The working principle of the utility model is as follows: before using a new type of end contraction protection type high insulation pressure sensor, install a new type of end contraction protection type high insulation pressure sensor at the detection position; when using a new type of end contraction protection type high insulation pressure sensor: when the product to be detected externally contacts the pressure sensor, during this process the product contacts the detection part 7 and presses the detection part 7 and the connecting part 8 to move toward the main body 1, during this process the connecting part 8 generates pressure on the sealing member 6, causing the contraction part 62 of the sealing member 6 to deform, as the connecting part 8 continuously moves toward the main body 1, the shape of the contraction part 62 continuously changes, during this process the space between the connecting part 8 and the housing 3 becomes smaller and smaller, and the contraction part 62 It is continuously squeezed out from between the connecting part 8 and the shell 3. During this process, the squeezed contraction 62 moves toward the first groove 4 and the second groove 9. During this process, the contraction 62 pushes dust, particles and other debris into the first groove 4 and the second groove 9; when the connecting part 8 stops moving, the contraction 62 stops deforming. During this process, the pressure sensor transmits the detected pressure signal to the external control system. After the pressure signal of the product is detected, the product leaves the pressure sensor so that the pressure of the product on the pressure sensor disappears. Under the action of the sealing member 6, the contact part 5 is reset away from the shell 3. During this process, the contraction 62 is reset and returns to between the shell 3 and the connecting part 8. At this time, the detection step of the pressure sensor is completed, and the above process is repeated until it works.

[0043] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A new type of end shrinkage protection high insulation pressure sensor, characterized in that: It comprises a main body (1) and an upper shell (2), wherein the main body (1) and the upper shell (2) are fixedly connected; The upper shell (2) comprises an outer shell (3), a sealing member (6) and a contact portion (5); the contact portion (5) is movably connected to the outer shell (3) through the sealing member (6); the contact portion (5) is separated from the outer shell (3); the contact portion (5) is in contact with the sealing member (6); the contact portion (5) is separated from the sealing member (6); and the sealing member (6) is fixedly connected to the outer shell (3); The contact portion (5) comprises a detection portion (7) and a connection portion (8); The seal (6) comprises an inner liquid and an outer skin, wherein the outer skin comprises a connection (61) and a constriction (62).

2. According to claim 1, a novel end shrinkage protection type high insulation pressure sensor is characterized in that: The sealing element (6), the housing (3) and the detection part (7) are concentric.

3. According to claim 1, a novel end shrinkage protection type high insulation pressure sensor is characterized in that: The cross section of the sealing member (6) is circular, and the sealing member (6) is located in a mounting groove of the housing (3) facing the contact portion (5).

4. The novel end shrinkage protection type high insulation pressure sensor according to claim 1 is characterized in that: The connection point (61) and the contraction point (62) are sealed and connected, and the liquid is specifically hydraulic oil.

5. The novel end shrinkage protection type high insulation pressure sensor according to claim 4 is characterized in that: The connection portion (61) is fixedly connected to the groove wall of the mounting groove of the housing (3) facing the contact portion (5), and the contraction portion (62) is separated from the housing (3) and the contact portion (5).

6. The novel end shrinkage protection type high insulation pressure sensor according to claim 4 is characterized in that: The connection part (61) is specifically made of a rigid material, and the contraction part (62) is specifically made of an elastic material.

7. A novel end shrinkage protection type high insulation pressure sensor according to claim 6, characterized in that: The material of the connection (61) is specifically plastic, the connection (61) is specifically bonded to the groove wall of the installation groove of the housing (3) facing the contact part (5), and the material of the contraction part (62) is specifically silicone rubber.

8. The novel end shrinkage protection type high insulation pressure sensor according to claim 1 is characterized in that: The housing (3) is provided with a first groove (4), the track of the first groove (4) is specifically circular, and a rounded corner is provided on the surface of the housing (3) facing the sealing element (6).

9. The novel end shrinkage protection type high insulation pressure sensor according to claim 1 is characterized in that: The contact portion (5) is provided with a second groove (9), the track of the second groove (9) is specifically circular, and a rounded corner is provided on the surface of the contact portion (5) facing the sealing member (6).

10. The novel end shrinkage protection type high insulation pressure sensor according to claim 1 is characterized in that: The portion of the connecting portion (8) located on the sealing member (6) is in the shape of a truncated cone, the surface of the connecting portion (8) in contact with the sealing member (6) is an inclined surface, the cross section of the connecting portion (8) is specifically circular, and the diameter of the connecting portion (8) away from the detection portion (7) is smaller than the diameter of the connecting portion (8) close to the detection portion (7).

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