A disconnector contact pressure tester

Abstract

The utility model discloses an isolator contact pressure tester, including pressure tester body and pressure sensor still include: first locating plate, it sets up on pressure sensor, second locating plate, it is matched with first locating plate and connects, first locating plate and second locating plate on all settings are limiting board, first locating plate and second locating plate are located on both sides of each limiting board and set up limiting column. The isolator contact pressure tester provided by the utility model first connects and installs first locating plate and second locating plate matched with on pressure tester body, and the limiting column on first locating plate and second locating plate carries out the spacing to pressure sensor length direction, and each limiting column on first locating plate and second locating plate and each limiting board are matched and form the spacing to the finger insert piece and play the role of spacing and prepositioning, and then connect the finger insert piece and the end of pressure sensor through the threaded fastener.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing instruments, and more specifically to a pressure testing instrument for disconnecting switch contacts. Background Technology

[0002] As is well known, the disconnector switch contact pressure tester is a specialized intelligent device used in power systems to detect the contact pressure of the contact fingers of high-voltage disconnectors. It accurately measures and records the contact pressure of the contact fingers when the contact finger inserts on the pressure sensor open at the contact position, thereby determining whether the contact status of the disconnector switch is qualified.

[0003] The specific installation steps of the pressure tester are as follows: First, align the two contact finger inserts with the gap edge on the inner side of the pressure sensor end and connect them with threads; then connect the pressure sensor to the pressure tester with a connecting wire; start the tester and set the parameters; insert the contact finger inserts into the switch to be tested; finally, observe and record the values ​​of the pressure tester.

[0004] When installing the aforementioned contact finger insert with the pressure sensor, the contact finger insert must first be aligned with the edge of the pressure sensor before being connected by threaded fasteners. However, during the operation, the threaded engagement must be performed while supporting and positioning the contact finger insert, which may result in alignment deviations. This not only increases the difficulty of the installation operation but also prolongs the installation time due to repeated adjustments, thus reducing the efficiency of pressure tester installation and testing. Utility Model Content

[0005] In view of the above-mentioned problems in the prior art, one objective of this utility model is to provide a disconnecting switch contact pressure tester to overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides a disconnector contact pressure tester, comprising a pressure tester body and a pressure sensor, and further comprising: a first positioning plate disposed on the pressure sensor; a second positioning plate engaged with the first positioning plate; both the first and second positioning plates are provided with limit plates; limit posts are provided on both sides of the first and second positioning plates; a limiting space is formed between each limit post and each limit plate, the limiting space being used to limit the position of the contact finger insert.

[0007] Preferably, the pressure sensor has a slit, and each of the limiting plates is located within the slit.

[0008] Preferably, both the first positioning plate and the second positioning plate are provided with limit blocks, and each limit block has a triangular structure.

[0009] Preferably, a snap-fit ​​space is formed between every two limiting blocks, and each snap-fit ​​space is snap-fitted into the pressure sensor.

[0010] Preferably, the pressure sensor has multiple threaded holes, and each of the contact finger inserts has a through hole corresponding to each of the threaded holes.

[0011] Preferably, the first positioning plate is provided with protruding rods, and the second positioning plate is provided with recessed rods that engage with each of the protruding rods.

[0012] Preferably, each of the limiting posts is a round rod structure, and the combined length of any two limiting posts is slightly greater than the width of the pressure sensor.

[0013] Preferably, the second positioning plate has a pressing part on it.

[0014] Preferably, each of the pressure testing instruments is provided with a connecting port and a connecting line, one end of which is connected to a pressure sensor.

[0015] Preferably, the pressure tester body is hinged with a cover.

[0016] In the above technical solution, the disconnector contact pressure tester provided by this utility model has the following beneficial effects: Before installing the contact finger insert, the first positioning plate and the second positioning plate are first snapped together and installed on the pressure tester body, such as... Figure 2 As shown in the diagram, the pressure sensor's length is limited by the limiting posts on the first and second positioning plates. The limiting posts and plates themselves cooperate to form a limiting space. The contact finger insert is placed within this space, which limits and pre-positions it. Then, threaded fasteners connect the contact finger insert to the end of the pressure sensor. This reduces or even eliminates the need for threaded engagement while supporting and positioning the contact finger insert, which could lead to alignment deviations. This not only increases the difficulty of installation but also prolongs installation time due to repeated adjustments, reducing the efficiency of pressure testing instrument installation and testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partially enlarged structural diagram of the first positioning plate and the second positioning plate after installation of this utility model;

[0020] Figure 3 This is a partially enlarged exploded view of the first and second positioning plates of this utility model.

[0021] Figure 4 This is a partially enlarged structural diagram of the finger insert of this utility model before installation;

[0022] Figure 5 This is a partially enlarged structural diagram of the limiting block of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Pressure tester body; 2. Pressure sensor; 3. Touch finger insert; 4. First positioning plate; 5. Second positioning plate; 6. Limiting plate; 7. Limiting post; 8. Limiting block; 1.1. Connection port; 1.2. Connection line; 1.3. Cover; 2.1. Threaded hole; 2.2. Gap; 3.1. Through hole; 4.1. Protruding rod; 5.1. Pressing part; 5.2. Recessed rod. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-5 A pressure tester for disconnecting switch contacts is used to solve the problem that when installing the contact finger insert with a pressure sensor, it is necessary to first align the contact finger insert with the edge of the pressure sensor and then connect it with threaded fasteners. However, during the operation, the threaded engagement is performed while supporting and positioning the contact finger insert, which may result in alignment deviations. This not only increases the difficulty of the installation operation, but also prolongs the installation time due to repeated adjustments, thus reducing the efficiency of pressure tester installation and testing.

[0027] As a further technical solution proposed in this utility model, the pressure testing instrument body 1 and pressure sensor 2 are included, as well as: a first positioning plate 4, which is disposed on the pressure sensor 2; a second positioning plate 5, which is snap-fitted with the first positioning plate 4; both the first positioning plate 4 and the second positioning plate 5 are provided with limit plates 6; limit posts 7 are provided on both sides of the first positioning plate 4 and the second positioning plate 5 at the limit plates 6; a limiting space is formed between each limit post 7 and each limit plate 6, and the limiting space is used to limit the position of the touch finger insert 3. Specifically, before installing the touch finger insert 3, the first positioning plate 4 and the second positioning plate 5 are snap-fitted and installed on the pressure testing instrument body 1, such as... Figure 2As shown in the diagram, the pressure sensor 2 is limited in length by the limiting posts 7 on the first positioning plate 4 and the second positioning plate 5. The limiting posts 7 on the first positioning plate 4 and the second positioning plate 5 cooperate with each limiting plate 6 to form a limiting space. The contact finger insert 3 is placed in the limiting space, which serves to limit and pre-position the contact finger insert 3. Then, the contact finger insert 3 is connected to the end of the pressure sensor 2 by threaded fasteners. This reduces or even avoids the need to perform threaded engagement while supporting and positioning the contact finger insert during operation, which could lead to alignment deviations. This not only increases the difficulty of installation but also prolongs the installation time due to repeated adjustments, reducing the efficiency of pressure tester installation and testing.

[0028] In another embodiment of this utility model, the pressure sensor 2 has a slit 2.2, and each limiting plate 6 is located within the slit 2.2. Furthermore, by the limiting plates 6 being located within the slit 2.2, such as... Figure 4 and Figure 2 As shown in the figure, the limiting plate 6, together with the limiting post 7 on the first positioning plate 4 and the second positioning plate 5, further reduces the movable space of the finger insert 3, making the pre-positioning of the finger insert 3 more accurate before installation.

[0029] In another embodiment of this utility model, preferably, limiting blocks 8 are respectively provided on the first positioning plate 4 and the second positioning plate 5. Each limiting block 8 has a triangular structure, and a snap-fit ​​space is formed between every two limiting blocks 8. Each snap-fit ​​space is engaged with the pressure sensor 2. Furthermore, the triangular structure of the limiting blocks 8 has good structural strength and stability, and the formed snap-fit ​​space can clamp the pressure sensor 2 from both sides. Figure 2 and Figure 5 As shown in the diagram, the pressure sensor 2 is less prone to shaking within the snap-fit ​​space, and the precise snap-fit ​​between the snap-fit ​​space and the pressure sensor 2 further defines the position of the pressure sensor 2. In conjunction with other limiting structures (such as the limiting post 7 and the limiting plate 6), a multi-dimensional positioning system is formed, which improves the positioning accuracy when the touch finger insert 3 is connected to the pressure sensor 2, and reduces or even avoids alignment deviation.

[0030] In another embodiment of this utility model, the pressure sensor 2 is provided with a plurality of threaded holes 2.1, and each contact finger insert 3 is provided with a through hole 3.1 corresponding to each threaded hole 2.1. The threaded holes 2.1 and the through holes 3.1 are connected by threaded fasteners (not shown in the figure). Furthermore, the specific number of threaded holes 2.1 and through holes 3.1 is set according to the needs of those skilled in the art, and the number of both is at least three. The design of multiple threaded connection points makes the connection between the contact finger insert 3 and the pressure sensor 2 more secure, effectively distributing the force and avoiding loosening or slippage of a single connection point due to excessive force, thus ensuring the stability and accuracy of the data during the detection process. This is prior art and will not be described in detail.

[0031] In another embodiment of this utility model, protruding rods 4.1 are provided on the first positioning plate 4, and recessed rods 5.2 are provided on the second positioning plate 5 to engage with each protruding rod 4.1. Further, as... Figure 3 As shown in the diagram, the two positioning plates are assembled (installed on the end of the pressure sensor 2) and securely connected by engaging the two protruding rods 4.1 on the first positioning plate 4 with the corresponding recessed rods 5.2 on the second positioning plate 5.

[0032] In another embodiment of this utility model, each limiting post 7 is specifically a round rod structure, and the combined length of every two limiting posts 7 is slightly greater than the width of the pressure sensor 2. Further, as shown... Figure 4 As shown in the diagram, the surface of the circular rod structure of the limiting rod 7 is smooth, as... Figure 4 As shown in the figure, it can reduce friction with pressure sensor 2 and avoid scratching the sensor surface during installation. The design with a combined length slightly larger than the width provides a slight installation space, avoiding installation jamming due to excessive tightness and making the installation process smoother.

[0033] In another embodiment of this utility model, a pressing part 5.1 is provided on the second positioning plate 5. Furthermore, the pressing part 5.1 provides a convenient operating fulcrum during disassembly, allowing the operator to quickly find the point of force application and easily separate the second positioning plate 5 from the first positioning plate 4 by simply pressing with their fingers. Figure 2 As shown in the diagram, it is easy to disassemble.

[0034] In another embodiment of this utility model, each pressure testing instrument body 1 is provided with a connecting port 1.1 and a connecting line 1.2. One end of the connecting line 1.2 is connected to the pressure sensor 2. A cover 1.3 is hinged to the pressure testing instrument body 1. Further, as... Figure 1 As shown in the diagram, connecting wire 1.2 is used to connect pressure sensor 2 and pressure tester body 1, while cover 1.3 is used to close and protect the components inside the housing, which is in the prior art.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressure tester for disconnecting switch contacts, comprising a pressure tester body (1) and a pressure sensor (2), characterized in that, Also includes: A first positioning plate (4) is disposed on the pressure sensor (2); The second positioning plate (5) is engaged with the first positioning plate (4); Limit plates (6) are provided on both the first positioning plate (4) and the second positioning plate (5); The first positioning plate (4) and the second positioning plate (5) are provided with limit posts (7) on both sides of each of the limiting plates (6); Each of the limiting posts (7) and each of the limiting plates (6) form a limiting space, which is used to limit the finger insert (3).

2. The disconnector contact pressure tester according to claim 1, characterized in that, The pressure sensor (2) has a slit (2.2) and each of the limiting plates (6) is located inside the slit (2.2).

3. The disconnector contact pressure tester according to claim 1, characterized in that, Both the first positioning plate (4) and the second positioning plate (5) are provided with limit blocks (8) respectively, and each limit block (8) is in a triangular structure.

4. The disconnector contact pressure tester according to claim 3, characterized in that, A snap-fit ​​space is formed between each pair of the limiting blocks (8), and each snap-fit ​​space is engaged with the pressure sensor (2).

5. The disconnector contact pressure tester according to claim 1, characterized in that, The pressure sensor (2) has multiple threaded holes (2.1), and each of the contact finger inserts (3) has a through hole (3.1) corresponding to each of the threaded holes (2.1).

6. The disconnector contact pressure tester according to claim 1, characterized in that, The first positioning plate (4) is provided with protruding rods (4.1) opposite to each other, and the second positioning plate (5) is provided with recessed rods (5.2) that engage with each of the protruding rods (4.1).

7. The disconnector contact pressure tester according to claim 1, characterized in that, Each of the limiting posts (7) is specifically a round rod structure, and the combined length of two limiting posts (7) is slightly greater than the width of the pressure sensor (2).

8. The disconnector contact pressure tester according to claim 1, characterized in that, The second positioning plate (5) has a pressing part (5.1) opposite to it.

9. The disconnector contact pressure tester according to claim 1, characterized in that, Each pressure tester body (1) is provided with a connecting port (1.1) and a connecting line (1.2), one end of the connecting line (1.2) being connected to the pressure sensor (2).

10. The disconnector contact pressure tester according to claim 1, characterized in that, The pressure tester body (1) is hinged with a cover (1.3).

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