A reamer
Patent Information
- Application Number
- CN202521985263.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-09-16
AI Technical Summary
然而,传统令克棒功能单一,在实际作业场景中存在诸多局限性:
1、本实用新型,通过立杆径向设置的横杆及横杆一端的燕尾槽结构配合,形成专门的令克纸管取装机构:作业时令克纸管凸起部位嵌入燕尾槽,相比传统令克棒取装时的反复调整与滑落风险,该结构使令克纸管取装效率提升。
Smart Images

Figure CN224862146U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a linker, belonging to the field of electrical appliance technology. Background Technology
[0002] In 10kV power line operation and maintenance, linkers are indispensable tools, mainly used for basic tasks such as opening and closing switches and replacing link fuses. However, traditional linkers have limited functionality and several limitations in actual operation scenarios: 1. Traditional link sticks do not have a dedicated link paper tube loading and unloading structure, which can easily lead to slippage when loading and unloading link paper tubes, affecting work efficiency and potentially causing safety hazards. 2. When performing line insulation testing, traditional linkers lack wiring structures that can adapt to various terminals, requiring additional adapters, which makes the operation cumbersome and increases the workload. 3. When performing electrical work in rainy weather, traditional link rods do not have a rainproof protection structure, and rainwater can easily enter the operating parts, reducing the safety of the operation and even causing equipment failure or electric shock risk to personnel. 4. According to the electrical safety operation procedures, voltage testing must be performed before switching operations. However, traditional linkers do not have an integrated voltage tester installation structure. Operators need to carry both the linker and the voltage tester separately, which is inconvenient to carry and increases the operation time and safety risks when switching procedures. Utility Model Content
[0003] The purpose of this invention is to provide a linker that addresses the shortcomings of existing technologies.
[0004] A linker includes a rod body, an operating head mounted on the top of the rod body, the operating head including a vertical rod extending axially along the rod body, a horizontal bar extending radially along the vertical rod, a dovetail groove at one end of the horizontal bar, an electroscope mounted on the top of the vertical rod, a terminal block mounted on the outer wall of the vertical rod, and a rain cover fitted on the upper outer wall of the rod body.
[0005] Furthermore, the terminal block is located between the crossbar and the electroscope.
[0006] Furthermore, an installation hole is provided through the outer wall of the upper part of the pole, and the terminal block is installed in the installation hole.
[0007] Furthermore, a mounting head is fixedly connected to the top of the pole, and the voltage detector is connected to the pole through the mounting head.
[0008] Furthermore, a connecting sleeve is connected to the bottom end of the upright, and the connecting sleeve is fitted onto the top end of the rod body, and the upright is connected to the rod body through the connecting sleeve.
[0009] Furthermore, a positioning hole is provided on the outer wall of the connecting sleeve, and a self-tapping screw is inserted into the positioning hole. The connecting sleeve is connected to the rod body through the self-tapping screw.
[0010] Furthermore, the rain cover includes a sleeve portion and an extension portion arranged axially along the sleeve portion. The sleeve portion is sleeved on the outer wall of the rod body, and the extension portion extends radially along the sleeve portion, with the cross-section of the extension portion being umbrella-shaped.
[0011] Furthermore, multiple extensions are provided, and the multiple extensions are arranged at equal intervals on the outer wall of the sleeve.
[0012] Beneficial effects: 1. This utility model forms a special link tube loading and unloading mechanism by using a horizontal bar arranged radially on the upright and a dovetail groove structure at one end of the horizontal bar: during operation, the protruding part of the link tube is embedded in the dovetail groove. Compared with the repeated adjustments and slippage risks during the loading and unloading of traditional link bars, this structure improves the efficiency of link tube loading and unloading.
[0013] 2. This utility model relies on the terminal block fixed in the mounting hole at the top of the pole, combined with the reasonable layout of the terminal block between the crossbar and the voltage detector, to form a direct wiring structure that is compatible with various terminals: when testing insulation, no additional adapter tools are needed, and the pin-type, plate-type, and other terminals of the testing equipment can be directly connected to the terminal block.
[0014] 3. This utility model, through the rainproof cover fitted on the upper part of the rod, combined with the sealing effect of the sleeve on the gap between the rod and the connecting sleeve, improves the safety factor of rainy day operations compared to the risk of electric shock and equipment failure of traditional link rod operations, ensuring that power operation and maintenance work can still be carried out normally in rainy environments.
[0015] 4. This utility model utilizes a voltage detector fixed at the top of the pole, combined with a stable connection between the pole and the rod, to form an integrated structure for voltage detection and operation. Before switching, there is no need to use the voltage detector separately; the voltage detector can be used to complete the circuit voltage detection by holding the rod. After voltage detection, there is no need to disassemble the voltage detector; the switch can be opened and closed or the link paper tube can be removed and installed directly through the crossbar and the pole, avoiding operational errors and safety risks during tool switching. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the operating head in this utility model; Figure 4 This is a partial structural diagram of the operating head in this utility model.
[0017] In the diagram: 1. Rod body; 2. Connecting sleeve; 3. Vertical pole; 4. Horizontal pole; 5. Voltage detector; 6. Dovetail groove; 7. Terminal block; 8. Rain cover; 9. Positioning hole; 10. Mounting hole; 11. Mounting head. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4 As shown, a link bar includes a bar body 1, an operating head is installed at the top of the bar body 1, the operating head includes a vertical rod 3 extending axially along the bar body 1, a horizontal bar 4 extending radially along the vertical rod 3, a dovetail groove 6 at one end of the horizontal bar 4, an electroscope 5 is installed at the top of the vertical rod 3, a terminal block 7 is also installed on the outer wall of the vertical rod 3, and a rain cover 8 is also fitted on the upper outer wall of the bar body 1.
[0020] Specifically, the rod 1 serves as the main body for holding and supporting, providing a stable carrier for the upper structure; the upright 3 of the operating head extends axially along the rod 1 and is the installation foundation for the functional structure; the radially arranged crossbar 4 can serve as the operating arm for picking up and putting in the linker tube; the dovetail groove 6 at one end of the crossbar 4 achieves stable embedding of the linker tube through its structural characteristics; the voltage detector 5 at the top of the upright 3 directly connects to the line voltage testing requirements, and the voltage testing steps before the switch operation can be completed without additional disassembly; the terminal 7 on the outer wall of the upright 3 provides a direct connection point for the line insulation test and is compatible with different types of test terminals; the rain cover 8 on the upper outer wall of the rod 1 can cover the lower part of the upright 3 to the connection area of the rod 1, and prevent rainwater from entering the core operating part through physical shielding.
[0021] As a technical optimization of this utility model, the terminal 7 is located between the crossbar 4 and the voltage detector 5.
[0022] Specifically, the crossbar 4 serves as the linker paper tube loading and unloading structure, requiring flexible radial operation during operation. The terminal 7 is positioned below the crossbar 4 to avoid mechanical interference with the terminal 7 when loading and unloading the paper tube. The voltage detector 5 is located at the top of the upright 3 and needs to directly contact or approach the line to complete the voltage detection. The terminal 7 is positioned below it to avoid electrical signal interference between the terminal 7 and the voltage detector 5, while ensuring that the terminal 7 is within the protection range of the rain cover 8.
[0023] As a technical optimization of this utility model, an installation hole 10 is provided through the outer wall of the upper part of the pole 3, and the terminal block 7 is installed in the installation hole 10.
[0024] Specifically, by opening an installation hole 10 through the upper outer wall of the pole 3 and installing the terminal 7 inside the installation hole 10, the terminal 7 is secured and insulated.
[0025] As a technical optimization of this utility model, the top of the pole 3 is fixedly connected to the mounting head 11, and the voltage detector 5 is connected to the pole 3 through the mounting head 11.
[0026] Specifically, the mounting head 11 is made of high-strength insulating material. One end of it is rigidly fixed to the top of the pole 3, and the other end is connected to the voltage detector 5 to ensure that the voltage detector 5 does not fall off during operation. The insulating mounting head 11 can block the electrical conduction between the pole 3 and the voltage detector 5, and prevent static electricity or stray current on the surface of the pole 3 from affecting the detection accuracy of the voltage detector 5, thus ensuring accurate voltage detection results.
[0027] As a technical optimization of this utility model, the bottom end of the upright 3 is connected to the connecting sleeve 2, the connecting sleeve 2 is sleeved on the top end of the rod 1, and the upright 3 is connected to the rod 1 through the connecting sleeve 2.
[0028] Specifically, the inner diameter of the connecting sleeve 2 is adapted to the outer diameter of the top of the rod 1. Initial positioning is achieved through interference fit or clearance fit, so that the upright 3 and the rod 1 are coaxial, ensuring the accurate operation direction of the crossbar 4, the voltage detector 5 and other structures during operation. This connection method facilitates the disassembly and assembly of the upright 3, and also provides a foundation for subsequent reinforcement through the positioning hole 9.
[0029] As a technical optimization of this utility model, a positioning hole 9 is provided on the outer wall of the connecting sleeve 2, and a self-tapping screw is inserted into the positioning hole 9. The connecting sleeve 2 is connected to the rod body 1 through the self-tapping screw.
[0030] Specifically, a positioning hole 9 is opened on the outer wall of the connecting sleeve 2, and a self-tapping screw is inserted into the positioning hole 9 to achieve rigid fixation between the connecting sleeve 2 and the rod body 1.
[0031] As a technical optimization of this utility model, the rain cover 8 includes a sleeve part and an extension part arranged axially along the sleeve part. The sleeve part is sleeved on the outer wall of the rod body 1, and the extension part extends radially along the sleeve part, and the cross section of the extension part is umbrella-shaped.
[0032] Specifically, the rain cover 8 includes a sleeve and an extension. The sleeve is fitted onto the outer wall of the rod 1, and the extension extends radially along the sleeve and has an umbrella-shaped cross-section, thus achieving the dual functions of fixing and rain protection.
[0033] As a technical optimization of this utility model, multiple extensions are provided, and the multiple extensions are arranged at equal intervals on the outer wall of the sleeve.
[0034] Specifically, the synergistic effect of multiple extensions can enhance the overall strength of the rainproof surface, prevent individual extensions from deforming due to rain impact or wind force, and ensure the protective effect during long-term rainy weather operations.
[0035] This utility model of the linker addresses the problems of traditional linkers in 10kV power line operation and maintenance, such as limited functionality, inconvenient operation, and insufficient safety. Through the integration of multiple structural designs, it achieves a unified function encompassing linker paper tube loading and unloading, line insulation testing, rain protection, and voltage detection. Its overall working principle revolves around the adaptability of the structural design to the operational scenario, as detailed below: Traditional link sticks lack a dedicated loading and unloading structure, making them prone to slipping when loading and unloading link tubes. This solution addresses this by radially installing a horizontal bar 4 on the upright 3, with a dovetail groove 6 at one end of the horizontal bar 4. During operation, the operator can insert the corresponding protruding part of the link tube into the dovetail groove 6 of the horizontal bar 4, utilizing the structural characteristics of the dovetail groove 6 to achieve a stable clamping of the link tube. During loading and unloading, the dovetail groove 6 restricts the axial and radial displacement of the link tube, preventing slippage. After loading and unloading, simply push the link tube radially along the horizontal bar 4 to release it from the dovetail groove 6. The operation is efficient and safe, requiring no additional tools, directly improving the efficiency and safety of link tube loading and unloading operations.
[0036] To address the issue of traditional linkers lacking a wiring structure compatible with various terminals and requiring additional adapters, this solution addresses this problem by designing a terminal block 7 and mounting hole 10 on the upright 3. This facilitates convenient wiring for insulation testing. The mounting hole 10 is perforated through the upper outer wall of the upright 3, and the terminal block 7 is installed within it. The terminal block 7 is located between the crossbar 4 and the voltage detector 5. During insulation testing, operators can directly connect different types of terminals of the insulation testing equipment to the terminal block 7 without the need for additional adapters. The mounting hole 10 provides both fixation and insulation isolation for the terminal block 7. The upright 3 is made of insulating material to ensure that the terminal block 7 does not shift during energized testing and remains electrically isolated from the upright 3, the rod body 1, and other structures, avoiding the risk of short circuits or leakage. This simplifies the insulation testing process and reduces the number of steps required.
[0037] Traditional linkers lack a rainproof structure, making it easy for rainwater to penetrate the operating area during rainy weather. This solution addresses this issue by installing a rainproof cover 8 on the upper outer wall of the linker body 1. The rainproof cover 8 includes a sleeve and an extension. The sleeve is fitted onto the outer wall of the linker body 1, securing the rainproof cover 8 to the linker body 1 and preventing it from shifting during rainy operations. The extension extends radially along the sleeve and has an umbrella-shaped cross-section. Multiple extensions are equidistantly positioned on the outer wall of the sleeve, forming a ring-shaped rainproof surface. When working in the rain, rainwater falling onto the surface of the extension will quickly flow outwards along the umbrella-shaped slope, preventing equipment malfunctions or electric shock risks caused by rainwater.
[0038] According to electrical safety regulations, voltage testing is required before switching operations. Traditional linkers require a separate voltage detector. This solution integrates a voltage detector 5 at the top of the pole 3, achieving integrated voltage testing and operation. The top of the pole 3 is fixedly connected to the mounting head 11, through which the voltage detector 5 is connected to the pole 3. The mounting head 11 is made of insulating and high-strength material, ensuring a stable connection between the voltage detector 5 and the pole 3, preventing the voltage detector 5 from falling off during operation, and ensuring that the detection accuracy of the voltage detector 5 is not affected by the material of the pole 3. During operation, the operator does not need to take the voltage detector separately; they can directly hold the link 1 and bring the voltage detector 5 at the top of the pole 3 close to the line to be tested. The sound and light signals from the voltage detector 5 determine whether the line is energized. After voltage testing, there is no need to disassemble the voltage detector 5; the switch operation can be performed directly through the pole 3, crossbar 4, and other structures, reducing the amount of tools carried and the operation switching process, thus reducing operation time and safety risks.
[0039] Taking the operation of a 10kV line switch in rainy weather as an example, the overall collaborative workflow of the Benlink bar is as follows: Electricity testing preparation: The operator holds the rod 1 and brings the voltage tester 5, which is connected to the top of the pole 3 via the mounting head 11, close to the line to be operated. The voltage tester 5 is used to determine whether the line is energized. Link paper tube loading and unloading: If there is no power in the line, use the horizontal bar 4 on the upright 3 to insert the link paper tube into the dovetail groove 6 at one end of the horizontal bar 4 to complete the loading and unloading of the link paper tube. Rain protection: In case of rain, the rain cover 8 on the upper part of the rod 1 blocks rainwater through its umbrella-shaped extension to prevent rainwater from entering; Insulation test: If insulation test of the line is required, connect the terminals of the test equipment to the terminal 7 in the mounting hole 10 on the pole 3 and perform the test directly. Switch operation: After completing the above steps, hold the stick 1 and use the upright 3, horizontal bar 4 and other structures to pull and close the switch. No tools need to be changed throughout the process, achieving seamless connection between voltage testing, installation and removal, protection, remote testing and operation.
[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A linker, comprising a linker body (1), characterized in that: An operating head is installed at the top of the rod (1). The operating head includes a vertical rod (3) extending along the axial direction of the rod (1). A horizontal bar (4) extending radially is provided on the vertical rod (3). A dovetail groove (6) is provided at one end of the horizontal bar (4). An electroscope (5) is installed at the top of the vertical rod (3). A terminal block (7) is also installed on the outer wall of the vertical rod (3). A rain cover (8) is also fitted on the upper outer wall of the rod (1).
2. The linker as described in claim 1, characterized in that: The terminal block (7) is located between the crossbar (4) and the electroscope (5).
3. The linker as described in claim 1, characterized in that: An installation hole (10) is provided through the outer wall of the upper part of the pole (3), and the terminal block (7) is installed in the installation hole (10).
4. The linker as described in claim 1, characterized in that: The top of the pole (3) is fixedly connected to the mounting head (11), and the electroscope (5) is connected to the pole (3) through the mounting head (11).
5. The linker as described in claim 1, characterized in that: The bottom end of the upright (3) is connected to a connecting sleeve (2), which is fitted onto the top end of the rod (1). The upright (3) is connected to the rod (1) through the connecting sleeve (2).
6. The linker as described in claim 5, characterized in that: The connecting sleeve (2) has a positioning hole (9) on its outer wall. A self-tapping screw is inserted into the positioning hole (9). The connecting sleeve (2) is connected to the rod body (1) through the self-tapping screw.
7. The linker as described in claim 1, characterized in that: The rain cover (8) includes a sleeve and an extension portion arranged axially along the sleeve. The sleeve is sleeved on the outer wall of the rod (1). The extension portion extends radially along the sleeve and has an umbrella-shaped cross section.
8. The linker as described in claim 7, characterized in that: The extension portion is provided in multiple ways, and the multiple extension portions are arranged at equal intervals on the outer wall of the sleeve portion.