Miniaturized anchor rod and cable pressure sensor
By using filter mesh and spring buffering mechanisms in anchor rods and cable pressure sensors, the problem of hydraulic oil impurity pollution caused by dust is solved, the detection accuracy and sensor safety are improved, and the accurate detection results of the pressure sensor are ensured.
Patent Information
- Application Number
- CN202420990152.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In environments such as construction sites and mines, dust enters the hydraulic cylinder, causing impurities to contaminate the hydraulic oil and affect the detection accuracy of the pressure sensor.
A miniaturized anchor rod and cable pressure sensor is designed, and the first and second filters are used to filter hydraulic oil, combined with the buffering mechanism of spring and connecting plate to prevent excessive hydraulic oil pressure from causing damage to the sensor, and through sealing Ring improves sealing.
It effectively improves the detection accuracy of the pressure sensor, prevents impurities in hydraulic oil from entering, protects the sensor, and ensures the accuracy of the detection results and the safety of the sensor.
Smart Images
Figure CN222141295U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure sensors, in particular to a miniaturized anchor rod and cable pressure sensor. Background Art
[0002] Anchor bolts are the most basic component of tunnel support in modern coal mines. They reinforce the surrounding rock of the tunnel so that the surrounding rock can support itself. Anchor bolts are not only used in mines, but also in engineering technology to reinforce the main body of slopes, tunnels and dams.
[0003] At present, since the anchor tension meter is often used in construction sites, mines and other places with a lot of dust, it is inevitable that dust particles will enter the hydraulic cylinder during the operation of the hydraulic cylinder. If the hydraulic oil contains these impurities, it will affect the accuracy of the pressure sensor's detection results. Therefore, in order to solve the above problems, we propose a miniaturized anchor and cable pressure sensor. Utility Model Content
[0004] The utility model aims to solve the defects in the prior art and proposes a miniaturized anchor rod and cable pressure sensor.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A miniaturized anchor rod and cable pressure sensor comprises a sensor body, wherein a first joint is fixedly connected to the bottom of the sensor body, a connecting base is fixedly connected to the outer side of the bottom of the first joint, a first connecting flange is fixedly connected to the outer side of the connecting base, a second connecting flange is fixedly connected to the bottom of the first connecting flange, a connecting tube is fixedly connected to the inner side of the second connecting flange, a third connecting flange is fixedly connected to the outer side of the bottom of the connecting tube, and a second joint is fixedly connected to the middle of the bottom of the connecting tube.
[0007] Furthermore, a first filter screen is fixedly connected to the bottom of the connecting tube, two symmetrically arranged connecting holes are opened inside the top of the connecting tube, and two symmetrically arranged side holes are opened outside the top of the connecting tube, and the connecting holes are connected to the adjacent side holes.
[0008] Furthermore, a spring is fixedly connected to the top of the connecting hole, a connecting piece is fixedly connected to the bottom of the spring, and an outer wall of the connecting piece fits the inner wall of the connecting hole.
[0009] Furthermore, a second filter screen is fixedly connected to the interior of the middle portion of the connection base, and the second filter screen is arranged below the first joint.
[0010] Furthermore, a first sealing ring is fixedly connected to the inside of the top of the connecting base, the first sealing ring is arranged on the outside of the first joint, a second sealing ring is fixedly connected between the first connecting flange and the connecting tube, and a third sealing ring is fixedly connected between the connecting tube and the third connecting flange.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] 1. The first filter and the second filter provided in the present application can filter the hydraulic oil entering the pressure sensor in advance, intercept impurities, and effectively improve the detection accuracy of the pressure sensor.
[0013] 2. The spring and the connecting piece provided in the present application can cooperate to buffer the incoming hydraulic oil and prevent the hydraulic oil pressure from being too high, which may cause damage to the sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the connecting tube of the utility model;
[0017] Figure 3 It is an enlarged schematic diagram of the structure at point A of the present utility model.
[0018] In the figure: 1. sensor body; 2. first joint; 3. connection base; 4. first connection flange; 5. second connection flange; 6. connection cylinder; 7. third connection flange; 8. second joint; 9. first filter screen; 10. second filter screen; 11. first sealing ring; 12. second sealing ring; 13. third sealing ring; 14. connection hole; 15. side hole; 16. spring; 17. connection plate. DETAILED DESCRIPTION
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;
[0020] Reference Figure 1-3A miniaturized anchor rod and cable pressure sensor includes a sensor body 1. A first joint 2 is fixedly connected to the bottom of the sensor body 1, a connection base 3 is fixedly connected to the outer side of the bottom of the first joint 2, a first connection flange 4 is fixedly connected to the outer side of the connection base 3, a second connection flange 5 is fixedly connected to the bottom of the first connection flange 4, a connection tube 6 is fixedly connected to the inner side of the second connection flange 5, a third connection flange 7 is fixedly connected to the outer side of the bottom of the connection tube 6, and a second joint 8 is fixedly connected to the middle of the bottom of the connection tube 6.
[0021] A first filter screen 9 is fixedly connected to the bottom of the connecting cylinder 6, two symmetrically arranged connecting holes 14 are opened inside the top of the connecting cylinder 6, and two symmetrically arranged side holes 15 are opened on the outer side of the top of the connecting cylinder 6. The connecting holes 14 are connected to the adjacent side holes 15. The first filter screen 9 will first filter the hydraulic oil to intercept impurities in the hydraulic oil.
[0022] A spring 16 is fixedly connected to the top of the connecting hole 14 , and a connecting piece 17 is fixedly connected to the bottom of the spring 16 . The outer wall of the connecting piece 17 fits the inner wall of the connecting hole 14 .
[0023] When the hydraulic oil enters the connecting tube 6, it will impact the connecting piece 17 under the action of pressure. The connecting piece 17 will compress the spring 16 and move upward. After the connecting piece 17 passes through the side hole 15, the hydraulic oil will spray into the connecting base 3 from the side hole 15 and finally enter the first joint 2. In this process, the connecting piece 17 will buffer the hydraulic oil and change the impact direction of the hydraulic oil through the side hole 15 to prevent the hydraulic oil from directly rushing into the sensor body 1 and damaging it.
[0024] A second filter screen 10 is fixedly connected to the interior of the middle of the connection base 3. The second filter screen 10 is arranged below the first joint 2. The hydraulic oil filtered for the second time by the second filter screen 10 will eventually enter the sensor body 1 through the first joint 2 to detect the pressure.
[0025] A first sealing ring 11 is fixedly connected to the inside of the top of the connecting base 3, and the first sealing ring 11 is arranged on the outside of the first joint 2. A second sealing ring 12 is fixedly connected between the first connecting flange 4 and the connecting tube 6, and a third sealing ring 13 is fixedly connected between the connecting tube 6 and the third connecting flange 7. The first sealing ring 11 is used to improve the sealing between the first joint 2 and the connecting base 3, the second sealing ring 12 is used to improve the sealing between the first connecting flange 4 and the connecting tube 6, and the third sealing ring 13 is used to improve the sealing between the connecting tube 6 and the third connecting flange 7.
Claims
1. A miniaturized anchor rod or cable pressure sensor, comprising a sensor body (1), characterized in that: The bottom of the sensor body (1) is fixedly connected to a first joint (2), the outer side of the bottom of the first joint (2) is fixedly connected to a connecting base (3), the outer side of the connecting base (3) is fixedly connected to a first connecting flange (4), the bottom of the first connecting flange (4) is fixedly connected to a second connecting flange (5), the inner side of the second connecting flange (5) is fixedly connected to a connecting tube (6), the outer side of the bottom of the connecting tube (6) is fixedly connected to a third connecting flange (7), and the middle part of the bottom of the connecting tube (6) is fixedly connected to a second joint (8).
2. A miniaturized anchor rod and cable pressure sensor according to claim 1, characterized in that: A first filter screen (9) is fixedly connected to the bottom of the connecting tube (6), two symmetrically arranged connecting holes (14) are provided inside the top of the connecting tube (6), and two symmetrically arranged side holes (15) are provided outside the top of the connecting tube (6), and the connecting holes (14) are connected to adjacent side holes (15).
3. A miniaturized anchor rod and cable pressure sensor according to claim 2, characterized in that: A spring (16) is fixedly connected to the top of the connection hole (14), a connecting piece (17) is fixedly connected to the bottom of the spring (16), and an outer wall of the connecting piece (17) fits the inner wall of the connection hole (14).
4. A miniaturized anchor rod and cable pressure sensor according to claim 1, characterized in that: A second filter screen (10) is fixedly connected to the interior of the middle portion of the connection base (3), and the second filter screen (10) is arranged below the first joint (2).
5. A miniaturized anchor rod and cable pressure sensor according to claim 1, characterized in that: A first sealing ring (11) is fixedly connected to the interior of the top of the connection base (3); the first sealing ring (11) is arranged on the outside of the first joint (2); a second sealing ring (12) is fixedly connected between the first connection flange (4) and the connection tube (6); and a third sealing ring (13) is fixedly connected between the connection tube (6) and the third connection flange (7).