Novel displacement sensor

Abstract

The utility model relates to the technical field of displacement sensors, in particular to a novel displacement sensor which comprises a shell, one end of the shell is provided with a front end cover, the other end of the shell is provided with a rear end cover, the edges of the front end cover and the rear end cover are provided with second surrounding edges, and the edges of the two ends of the shell are connected with first surrounding edges. When the front end cover and the rear end cover cover the end of the shell, the second surrounding edges abut against the corresponding first surrounding edges, two resistor polar plates are installed on the inner wall of the shell, a measuring rod is arranged between the two resistor polar plates, and one end of the measuring rod penetrates through the front end cover. The front end cover and the rear end cover can be fixed to the two ends of the shell through cooperation of the first clamping hoop and the second clamping hoop, fixing is simple, when disassembly and overhaul are needed, the locking bolts only need to be screwed out of the threaded holes, the first clamping hoop and the second clamping hoop can be separated, the front end cover and the rear end cover can be disassembled from the shell for clearance, assembly and disassembly are convenient, and the assembly and disassembly efficiency is improved. The use effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of displacement sensor technology, and in particular to a novel displacement sensor. Background Technology

[0002] A displacement sensor is a device that converts the physical quantity of an object's position or distance of movement into a measurable electrical signal through principles such as electromagnetic induction, photoelectric conversion, or capacitance change, and is used to monitor linear or angular displacement changes in real time.

[0003] Existing displacement sensors typically involve placing a measuring rod in contact with the object being measured. As the object moves, it pushes the measuring rod, generating electrical signals of varying magnitudes. These signals are then analyzed to determine the object's displacement. However, since the end caps of displacement sensors are usually bolted together, disassembly is cumbersome and inconvenient for internal inspection, resulting in poor performance. Furthermore, the sensors generate significant heat during operation, which existing sensors typically cool through natural processes or by using nearby fans, leading to slow and ineffective heat dissipation. Therefore, we propose a novel displacement sensor. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a novel displacement sensor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel displacement sensor is designed, including a housing, a front end cover at one end of the housing, and a rear end cover at the other end of the housing. The edges of the front end cover and the rear end cover are provided with second surrounding edges, and the edges of both ends of the housing are connected with first surrounding edges. When the front end cover and the rear end cover cover the ends of the housing, the second surrounding edges abut against the corresponding first surrounding edges.

[0006] Two resistance plates are installed on the inner wall of the outer casing, and a measuring rod is provided between the two resistance plates. One end of the measuring rod passes through the front cover, and a conductive block is installed on the other end of the measuring rod. The conductive block is in contact with the side of the two resistance plates.

[0007] A first clamp and a second clamp are provided at both ends of the outer shell. The first clamp and the second clamp are arranged in an arc shape, and a limiting groove is opened on the inner surface of the first clamp and the second clamp. The limiting groove is sleeved on the corresponding first and second circumferences.

[0008] A second connecting block is installed at one end of each second clamp, and a third connecting block is installed at one end of the first clamp. One end of the second connecting block is rotatably connected to the third connecting block through a hinge seat.

[0009] A fourth connecting block is installed at the other end of each second clamp. A through hole is provided on the side of the fourth connecting block, and a locking bolt is provided inside the through hole. A first connecting block is installed at the other end of each first clamp. A threaded hole is provided on the side of the first connecting block, and one end of the locking bolt passes through the corresponding threaded hole and is threadedly connected to the threaded hole.

[0010] The outer casing has two cooling shells on its side. The adjacent surfaces of the two cooling shells are arc-shaped, and when the adjacent ends of the two cooling shells abut each other, an accommodating space is formed between them, and the outer casing is located in this space.

[0011] Each cooling housing has an internal cavity, and each cavity has several mounting slots on the side closest to the outer shell. Each mounting slot contains a cooling chip, and the cold end of the cooling chip is in contact with the side of the outer shell.

[0012] Preferably, the sides of the first and second perimeters that are far apart from each other are both set as inclined surfaces, and the inner sidewalls of the limiting groove are inclined, with the inclination angle matching the inclined surface.

[0013] Preferably, skirts are provided at the adjacent ends of the two cooling shells, and adjacent skirts are fastened together by bolts.

[0014] Preferably, mounting bases are installed at both ends of the housing, with the bottom of the mounting bases extending below the skirt.

[0015] Preferably, each cooling housing has at least one air inlet on its side, each air inlet is equipped with a fan, the fan blows air towards the hot end of the cooling chip, and each cooling housing has several heat dissipation slots at its top and bottom ends.

[0016] Preferably, the outer casing is made of thermally conductive ceramic material.

[0017] Preferably, one end of the rear cover is connected to a cable, one end of which is connected to the resistor plate, the cooling chip and the fan respectively via wires, and the other end of the cable is connected to an external control device.

[0018] Preferably, a spring is fitted on the side of the measuring rod, with one end of the spring abutting against the side of the conductive block and the other end of the spring abutting against the side of the front end cover.

[0019] The design scheme proposed in this utility model has the following beneficial effects in application:

[0020] 1. The front and rear covers can be fixed to both ends of the housing by the cooperation of the first and second clamps. The fixing is simple. When disassembly and maintenance are required, the locking bolts can be unscrewed from the threaded holes to separate the first and second clamps. The front and rear covers can then be removed from the housing for clearance. The installation and removal are convenient and improve the performance.

[0021] 2. The cold end of the cooling chip can cool the outer casing, thereby accelerating the cooling speed of the internal components, preventing the components from becoming too hot and affecting the detection accuracy, and improving the heat dissipation effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a front sectional view of the present invention;

[0025] Figure 4 This is a side sectional view of the outer shell structure of this utility model;

[0026] Figure 5 This is a side view of the connection structure between the first clamp, the first surrounding edge, and the second surrounding edge of this utility model;

[0027] Figure 6 This is a schematic diagram of the first and second clamps of this utility model.

[0028] In the diagram: 1. Measuring rod; 2. Front end cover; 3. First clamp; 4. Second clamp; 5. Cooling shell; 6. Skirt; 7. Heat dissipation groove; 8. Fan; 9. Air inlet; 10. Mounting base; 11. Cable; 12. Rear end cover; 13. Mounting groove; 14. Conductive block; 15. Receiving cavity; 16. Cooling chip; 17. Outer shell; 18. Resistance plate; 19. Threaded hole; 20. First connecting block; 21. Locking bolt; 22. First perimeter; 23. Limiting groove; 24. Second perimeter; 25. Second connecting block; 26. Third connecting block; 27. Fourth connecting block; 28. Through hole; 29. ​​Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figures 1-6A novel displacement sensor includes a housing 17. One end of the housing 17 is provided with a front cover 2, and the other end of the housing 17 is provided with a rear cover 12. The edges of the front cover 2 and the rear cover 12 are provided with second perimeters 24, and the edges of both ends of the housing 17 are connected with first perimeters 22. When the front cover 2 and the rear cover 12 cover the ends of the housing 17, the second perimeters 24 abut against the corresponding first perimeters 22. The front cover 2 and the rear cover 12 can cover both ends of the housing 17 and protect the internal components of the housing 17.

[0031] like Figure 3 and Figure 4 The inner wall of the outer casing 17 is equipped with two resistive plates 18, and a measuring rod 1 is provided between the two resistive plates 18. One end of the measuring rod 1 passes through the front cover 2, and the other end of the measuring rod 1 is equipped with a conductive block 14. The conductive block 14 is in contact with the side of the two resistive plates 18. One end of the rear cover 12 is connected to a cable 11. One end of the cable 11 is connected to the two resistive plates 18 through a wire, and the other end of the cable 11 is connected to an external control device. In actual use, when one end of the measuring rod 1 is in contact with the object being measured, the movement of the object will push the measuring rod 1 to move, thereby adjusting the position of the conductive block 14 between the resistive plates 18, thus generating electrical signals of different magnitudes. The electrical signals are then transmitted to the external control device through the cable 11 for processing.

[0032] like Figure 4 As shown, a spring 29 is fitted on the side of the measuring rod 1. One end of the spring 29 abuts against the side of the conductive block 14, and the other end of the spring 29 abuts against the side of the front cover 2. Under the action of the spring 29, when the object being measured is removed from the measuring rod 1, the measuring rod 1 can be restored to its original position for convenient subsequent use.

[0033] like Figure 1 , Figure 5 and Figure 6 As shown, a first clamp 3 and a second clamp 4 are respectively provided at both ends of the outer shell 17. The first clamp 3 and the second clamp 4 are arranged in an arc shape, and a limiting groove 23 is opened on the inner surface of the first clamp 3 and the second clamp 4. The limiting groove 23 is fitted on the corresponding first edge 22 and second edge 24. Through the cooperation of the first clamp 3 and the second clamp 4, the first edge 22 and the second edge 24 can be fixed together, so that the front end cover 2 and the rear end cover 12 can be fixed together with the outer shell 17, which is convenient.

[0034] It should be noted that the sides of the first perimeter 22 and the second perimeter 24 that are far apart from each other are both set as slopes, and the inner sidewall of the limiting groove 23 is set at an angle that matches the slope. In this way, when the first clamp 3 and the second clamp 4 retract, they will squeeze the first perimeter 22 and the second perimeter 24 to move relative to each other, so that the first perimeter 22 and the second perimeter 24 are tightly pressed together, making the installation more stable.

[0035] like Figure 6 As shown, a second connecting block 25 is installed at one end of each second clamp 4, and a third connecting block 26 is installed at one end of each first clamp 3. One end of the second connecting block 25 is rotatably connected to the third connecting block 26 via a hinge seat. A fourth connecting block 27 is installed at the other end of each second clamp 4. A through hole 28 is provided on the side of the fourth connecting block 27, and a locking bolt 21 is provided inside the through hole 28. A first connecting block 20 is installed at the other end of each first clamp 3. A threaded hole 19 is provided on the side of the first connecting block 20. One end of the locking bolt 21 passes through the corresponding threaded hole 19 and is threadedly connected to the threaded hole 19. In actual use, by tightening the locking bolt 21, the first connecting block 20 and the fourth connecting block 27 can be tightly pressed together with the threaded hole 19, thereby fixing the first clamp 3 and the second clamp 4 together and securing them firmly.

[0036] like Figure 2 and Figure 3 As shown, the outer shell 17 has two cooling shells 5 on its side. The adjacent surfaces of the two cooling shells 5 are arc-shaped. When the adjacent ends of the two cooling shells 5 abut each other, a space is formed between them. The outer shell 17 is located in this space. The two cooling shells 5 can wrap the outer shell 17, which facilitates the cooling of the interior of the outer shell 17.

[0037] like Figure 3 As shown, each cooling housing 5 has an internal cavity 15. Each cavity 15 has several mounting slots 13 on the side near the outer shell 17. Each mounting slot 13 has a cooling chip 16 installed inside it, and the cold end of the cooling chip 16 is in contact with the side of the outer shell 17. The outer shell 17 is made of thermally conductive ceramic material, or other materials with insulating and thermally conductive properties. The cooling chip 16 is connected to the cable 11 through a wire, and the cable 11 is connected to an external control device. In actual use, the cold end of the cooling chip 16 will cool the outer shell 17, thereby cooling the heat generated by the internal components of the outer shell 17 and accelerating the heat dissipation effect.

[0038] like Figure 2 and Figure 3 As shown, each cooling housing 5 has at least one air inlet 9 on its side, and a fan 8 is installed inside each air inlet 9. The fan 8 blows air towards the hot end of the cooling chip 16, and several heat dissipation slots 7 are provided at the top and bottom ends of each cooling housing 5. The fan 8 is connected to the cable 11 through a wire, and the other end of the cable 11 is connected to an external control device. In actual use, the fan 8 can blow external air through the air inlet 9 to the hot end of the cooling chip 16 to quickly dissipate heat from the hot end of the cooling chip 16. After that, the air is discharged to the outside of the cooling housing 5 through the heat dissipation slots 7.

[0039] Specifically, during installation, the operator inserts one end of the measuring rod 1 into the outer casing 17, then places the front cover 2 and the rear cover 12 onto the end of the outer casing 17, so that the first perimeter 22 abuts against the second perimeter 24. The operator then places the limiting groove 23 on the second clamp 4 onto one side of the first perimeter 22 and the second perimeter 24. Next, the operator rotates the first clamp 3 to place it onto the other side of the first perimeter 22 and the second perimeter 24, aligning the first connecting block 20 with the fourth connecting block 27. The locking bolt 21 is then passed through the through hole 28 and screwed into the threaded hole 19. Tightening the locking bolt 21 fixes the first clamp 3 and the second clamp 4 in place, thereby securing the front cover 2 and the rear cover 12. The cover 12 is fixed to the outer casing 17, which is simple to fix. During use, the operator controls the operation of the cooling chip 16 and the fan 8. The heat generated by the internal components of the outer casing 17 is transferred to the surface of the outer casing 17. The cold end of the cooling chip 16 cools the outer casing 17, thereby keeping the outer casing 17 at a low temperature and accelerating the cooling speed of the heat generated by the internal components of the outer casing 17, thus improving the cooling effect. At the same time, the fan 8 blows outside air towards the hot end of the cooling chip 16 to cool and dissipate heat from the hot end of the cooling chip 16, preventing the hot end of the cooling chip 16 from getting too hot and affecting the cooling effect of the cooling chip 16. After cooling the hot end of the cooling chip 16, the air blown in by the fan 8 is discharged into the external environment through the heat dissipation slot 7.

[0040] Furthermore, such as Figure 1 and Figure 2 As shown, skirts 6 are extended from the near ends of the two cooling shells 5. The two adjacent skirts 6 are fastened together by bolts. The two cooling shells 5 are thus fixed in place and securely fixed.

[0041] Furthermore, such as Figure 1 and Figure 2 As shown, mounting bases 10 are installed at both ends of the outer casing 17. The bottom of the mounting base 10 extends to the bottom of the skirt 6. The outer casing 17 can be fixed to the installation position through the mounting base 10. After installation, there will be a gap between the cooling housing 5 and the installation surface, which will not hinder the air discharged from the heat dissipation slot 7.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel displacement sensor, comprising a housing (17), characterized in that: One end of the outer shell (17) is provided with a front end cover (2), and the other end of the outer shell (17) is provided with a rear end cover (12). The edges of the front end cover (2) and the rear end cover (12) are provided with second rims (24), and the edges of both ends of the outer shell (17) are connected with first rims (22). When the front end cover (2) and the rear end cover (12) cover the end of the outer shell (17), the second rims (24) abut against the corresponding first rims (22). Two resistance plates (18) are installed on the inner wall of the outer shell (17), and a measuring rod (1) is provided between the two resistance plates (18). One end of the measuring rod (1) passes through the front cover (2), and a conductive block (14) is installed on the other end of the measuring rod (1). The conductive block (14) is in contact with the side of the two resistance plates (18). A first clamp (3) and a second clamp (4) are provided at both ends of the outer shell (17). The first clamp (3) and the second clamp (4) are arranged in an arc shape, and a limiting groove (23) is opened on the inner surface of the first clamp (3) and the second clamp (4). The limiting groove (23) is fitted on the corresponding first edge (22) and second edge (24). Each second clamp (4) is equipped with a second connecting block (25) at one end, and a third connecting block (26) is installed at one end of the first clamp (3). One end of the second connecting block (25) is rotatably connected to the third connecting block (26) through a hinge seat. A fourth connecting block (27) is installed at the other end of each second clamp (4). A through hole (28) is provided on the side of the fourth connecting block (27). A locking bolt (21) is provided inside the through hole (28). A first connecting block (20) is installed at the other end of each first clamp (3). A threaded hole (19) is provided on the side of the first connecting block (20). One end of the locking bolt (21) passes through the corresponding threaded hole (19) and is threadedly connected to the threaded hole (19). The outer shell (17) has two cooling shells (5) on its side. The adjacent surfaces of the two cooling shells (5) are arc-shaped. When the adjacent ends of the two cooling shells (5) abut each other, a space is formed between them, and the outer shell (17) is located in this space. Each cooling housing (5) has an internal cavity (15), and each cavity (15) has several mounting slots (13) on the side of the housing (17) inside. Each mounting slot (13) has a cooling chip (16) installed inside, and the cold end of the cooling chip (16) is in contact with the side of the housing (17).

2. The novel displacement sensor according to claim 1, characterized in that: The sides of the first perimeter (22) and the second perimeter (24) that are far apart from each other are both set as inclined surfaces, and the inner sidewall of the limiting groove (23) is set at an angle, and the angle of inclination matches the inclined surface.

3. The novel displacement sensor according to claim 1, characterized in that: Both cooling housings (5) have skirts (6) extending from their adjacent ends, and adjacent skirts (6) are fastened together by bolts.

4. A novel displacement sensor according to claim 3, characterized in that: Mounting bases (10) are installed at both ends of the outer shell (17), with the bottom of the mounting bases (10) extending below the skirt (6).

5. A novel displacement sensor according to claim 1, characterized in that: Each cooling housing (5) has at least one air inlet (9) on its side, and each air inlet (9) is equipped with a fan (8). The fan (8) blows air towards the hot end of the cooling chip (16), and each cooling housing (5) has several heat dissipation slots (7) at its upper and lower ends.

6. A novel displacement sensor according to claim 1, characterized in that: The outer shell (17) is made of thermally conductive ceramic material.

7. A novel displacement sensor according to claim 1, characterized in that: One end of the rear cover (12) is connected to a cable (11). One end of the cable (11) is connected to the resistor plate (18), the cooling chip (16) and the fan (8) respectively through wires, and the other end of the cable (11) is connected to an external control device.

8. A novel displacement sensor according to claim 1, characterized in that: A spring (29) is fitted on the side of the measuring rod (1). One end of the spring (29) abuts against the side of the conductive block (14), and the other end of the spring (29) abuts against the side of the front cover (2).

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