Terminal extraction device

Abstract

The utility model relates to the field of nuclear power instrumentation and control technology, and in particular to a terminal extraction device. The terminal includes a terminal base and a plurality of terminal bodies, and the plurality of terminal bodies are all arranged on the terminal base, and a first connecting hole is arranged on the terminal base. The terminal extraction device includes a positioning frame and an auxiliary puller, and the positioning frame can be inserted into the first connecting hole to fix the terminal base, and the auxiliary puller includes a hand grip and two clamping parts, and the clamping part is located at the lower end of the hand grip and can clamp the terminal body. The utility model fixes the terminal base by the positioning frame, and the auxiliary puller clamps the terminal body and pulls it upward, so that the terminal body can be conveniently and accurately extracted from the terminal base.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power instrumentation and control, in particular to a terminal extraction device. Background Art

[0002] In the CAP1400 and AP1000 series nuclear power units, the instrumentation and control nuclear-grade protection system uses test terminals (TP for short) on the components that interface with external instrument / valve signals to facilitate commissioning and maintenance operations, so as to facilitate the opening / closing operations of the signal circuit.

[0003] In practical applications, since the test terminals are arranged relatively densely and installed tightly, it is difficult to pull them out manually, and it is easy to damage the terminals. There is also a risk of accidentally pulling out adjacent terminals. Therefore, a terminal pulling device is urgently needed to achieve convenient and accurate pulling out of the target terminal. Utility Model Content

[0004] The utility model aims to provide a terminal extraction device to realize convenient and accurate extraction of target terminals.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The terminal extraction device comprises a terminal base and a plurality of terminal bodies, the plurality of terminal bodies are arranged on the terminal base, the terminal base is provided with a first connection hole, and the terminal extraction device comprises:

[0007] A positioning frame, the positioning frame is used to be inserted into the first connecting hole to fix the terminal base;

[0008] The pull-out aid comprises a hand-grip portion and two clamping portions, wherein the two clamping portions are located at the lower end of the hand-grip portion and are used for clamping the terminal body.

[0009] Furthermore, a through hole is provided on the positioning frame, and the pulling aid is slidably arranged through the through hole.

[0010] Furthermore, the terminal extraction device further comprises a limit plate, which is arranged on the extraction aid and is used to limit the height of the extraction aid being pulled upward along the through hole.

[0011] Furthermore, a first groove is provided on the clamping portion, and the limiting plate is inserted into the first groove.

[0012] Furthermore, a plurality of first grooves are provided, and the plurality of first grooves are arranged at intervals along the height direction of the ejection aid, and the limiting plates are selectively inserted into the first grooves.

[0013] Furthermore, the positioning frame includes a supporting portion and a limiting portion, the supporting portion is vertically arranged to the limiting portion, the supporting portion is used to be inserted into the first connecting hole, and the through hole is arranged on the limiting portion.

[0014] Furthermore, a second connection hole is provided on the limiting portion, and the second connection hole is used to fixedly connect the supporting portion and the limiting portion.

[0015] Furthermore, a plurality of support parts are provided, and a plurality of second connection holes are provided at the connection between the limiting part and each of the support parts, and one of the support parts is selectively inserted into a corresponding second connection hole.

[0016] Furthermore, each of the clamping parts is provided with a half groove, and the half grooves on the two clamping parts are combined to form a clamping groove, and the clamping groove is used to clamp the terminal body.

[0017] Furthermore, the outer side of the grip portion is provided with patterns. Beneficial effects of the utility model:

[0018] The utility model provides a terminal extraction device, wherein the terminal comprises a terminal base and a plurality of terminal bodies, the terminal base is provided with a first connection hole, the terminal extraction device comprises a positioning frame and an auxiliary extraction device, the positioning frame can be inserted into the first connection hole to fix the terminal base, the auxiliary extraction device comprises a hand grip and two clamping parts, the clamping part is located at the lower end of the hand grip and can clamp the terminal body. The utility model fixes the terminal base by the positioning frame, the auxiliary extraction device clamps the terminal body, and when the auxiliary extraction device is pulled upward, the terminal body is driven to be conveniently and accurately extracted from the terminal base. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the terminal extraction device provided by the embodiment of the utility model inserted into the terminal base;

[0020] Figure 2 It is a side view of the terminal extraction device provided by the embodiment of the utility model inserted into the terminal base;

[0021] Figure 3 It is a schematic diagram of the structure of the limiting part in the positioning frame provided by the embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the pull-out aid provided by an embodiment of the utility model.

[0023] In the figure:

[0024] 10. terminal; 101. terminal base; 102. terminal body;

[0025] 1. Positioning frame; 11. Supporting portion; 12. Positioning portion; 121. Through hole; 122. Second connecting hole;

[0026] 2. Pull-out aid; 21. Hand grip; 22. Clamping portion; 221. First groove; 222. Clamping groove; 23. Second groove;

[0027] 3. Limit plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply 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, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] Combine the following Figure 1-4 The technical solution of the utility model is further illustrated through specific implementation methods.

[0036] The utility model provides a terminal extraction device, wherein the terminal 10 includes a terminal base 101 and a plurality of terminal bodies 102, the plurality of terminal bodies 102 are all arranged on the terminal base 101, and a first connection hole is arranged on the terminal base 101. The terminal extraction device includes a positioning frame 1 and an extraction aid 2, the positioning frame 1 can be inserted into the first connection hole, and is used to fix the terminal base 102 when the terminal body 101 is extracted; the extraction aid 2 includes a hand grip 21 and two clamping parts 22, the two clamping parts 22 are located at the lower end of the hand grip 21, and can clamp the terminal body 102. The utility model fixes the terminal base 101 by the positioning frame 1, and the extraction aid 2 clamps the terminal body 102, and when the extraction aid 2 is pulled upward, the terminal body 102 is driven to be extracted from the terminal base 101, which is easy to operate and can protect the terminal 10 from damage.

[0037] like Figure 2 and Figure 3 As shown, when the terminal body 102 is pulled out, in order to limit the position of the puller 2, a through hole 121 is provided on the positioning frame 1, and the puller 2 is slidably arranged in the through hole 121. The puller 2 selects the terminal body 102 to be pulled out by moving in the through hole 121. When the puller 2 clamps the terminal body 102 and pulls it upward, the through hole 121 can limit the puller 2 in the horizontal direction, so as to prevent the puller 2 from shaking too much when pulling it upward and damaging the terminal body 102.

[0038] In this embodiment, the positioning frame 1 includes a support portion 11 and a limiting portion 12, the support portion 11 and the limiting portion 12 are arranged vertically, the support portion 11 can be inserted into the first connection hole to fix the terminal base 101, the through hole 121 is arranged on the limiting portion 12, and the positioning frame 1 adopts a split structure, which is convenient for processing and low in cost. Further, a second connection hole 122 is arranged on the limiting portion 12, and the second connection hole 122 is used to fix the limiting portion 12 and the support portion 11, so that the support portion 11 can be detachably connected to the limiting portion 12.

[0039] In order to adjust the position of the positioning frame 1 on the terminal base 101, in the present embodiment, a plurality of support portions 11 are provided, and a plurality of second connection holes 122 are provided at the connection between the limiting portion 12 and each support portion 11. Each support portion 11 is selectively inserted into the corresponding second connection hole 122, so that the support portion 11 can be better inserted into the first connection hole on the terminal base 101 to fix the terminal base 101, thereby enabling the terminal extraction device to adapt to terminals 10 of different specifications.

[0040] like Figure 3 As shown, in order to limit the pull-out height of the terminal body 102, the terminal pull-out device also includes a limit plate 3, which is arranged on the pull-out aid 2 and is used to limit the height of the pull-out aid 2 pulled upward along the through hole 121. When the pull-out aid 2 clamps the terminal body 102 and pulls it upward to a certain height, the limit plate 3 is limited below the through hole 121, preventing the pull-out aid 2 from continuing to pull upward, avoiding damage to the terminal body 102 due to excessive pull-out height, thereby limiting the pull-out height of the terminal body 102. Furthermore, in this embodiment, a first groove 221 is provided on the clamping portion 22, and the limit portion 12 is inserted into the first groove 221, so that the pull-out aid 2 is conveniently inserted into the through hole 121 when the device is used.

[0041] Furthermore, in order to make the terminal extraction device suitable for terminals 10 of different specifications, a plurality of first grooves 221 are provided, and the plurality of first grooves 221 are arranged at intervals along the height direction of the extraction aid 2, and the limiting plate 3 can be selectively inserted into the first groove 221. Specifically, according to the specifications of the terminal 10 to be extracted, the extraction height of the terminal 10 is determined, and then the limiting plate 3 is inserted into the first groove 221 of the corresponding height, so as to achieve the effect of limiting the extraction height of the terminal body 102.

[0042] like Figure 4As shown, in this embodiment, each clamping portion 22 is provided with a half groove, and the half grooves on the two clamping portions 22 are combined to form a clamping groove 222, and the clamping groove 222 can clamp the terminal body 102. In detail, the shape of the clamping groove 222 matches the shape of the terminal body 102, and when the extraction aid 2 clamps the terminal body 102, the terminal body 102 is better accommodated in the clamping groove 222, and the terminal body 102 can be easily and accurately pulled out from the terminal base 101, thereby protecting the terminal body 102 from being scratched.

[0043] Optionally, a second groove 23 is provided on the extraction aid 2 , and the second groove 23 is located above the clamping groove 222 and communicated with the clamping groove 222 . The second groove 23 makes it easier to separate the two clamping parts 22 to clamp the terminal body 102 .

[0044] In order to prevent the extraction aid 2 from sliding when holding the terminal body 102 , in this embodiment, the outer side of the grip portion 21 is provided with textures, which increases the contact area between the hand and the extraction aid 2 and improves the use effect of the extraction aid 2 .

[0045] Furthermore, the end of the extraction aid 2 is rounded to prevent the sharp edge of the end of the extraction aid 2 from scratching adjacent equipment.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A terminal extraction device, wherein the terminal (10) comprises a terminal base (101) and a plurality of terminal bodies (102), wherein the plurality of terminal bodies (102) are arranged on the terminal base (101), and the terminal base (101) is provided with a first connection hole, characterized in that: The terminal extraction device comprises: A positioning frame (1), the positioning frame (1) being used to be inserted into the first connection hole to fix the terminal base (101); The pull-out aid (2) comprises a hand grip (21) and two clamping parts (22), wherein the two clamping parts (22) are located at the lower end of the hand grip (21), and the two clamping parts (22) are used to clamp the terminal body (102).

2. The terminal extraction device according to claim 1, characterized in that: The positioning frame (1) is provided with a through hole (121), and the extraction aid (2) is slidably arranged in the through hole (121).

3. The terminal extraction device according to claim 2, characterized in that: The terminal extraction device further comprises a limit plate (3), wherein the limit plate (3) is arranged on the extraction aid (2), and the limit plate (3) is used to limit the height of the extraction aid (2) being pulled upward along the through hole (121).

4. The terminal extraction device according to claim 3, characterized in that: The clamping portion (22) is provided with a first groove (221), and the limiting plate (3) is inserted into the first groove (221).

5. The terminal extraction device according to claim 4, characterized in that: A plurality of the first grooves (221) are provided, and the plurality of the first grooves (221) are arranged at intervals along the height direction of the extraction aid (2), and the limiting plates (3) are selectively inserted into the first grooves (221).

6. The terminal extraction device according to claim 2, characterized in that: The positioning frame (1) comprises a supporting portion (11) and a limiting portion (12); the supporting portion (11) and the limiting portion (12) are arranged perpendicularly; the supporting portion (11) is used to be inserted into the first connecting hole; and the through hole (121) is arranged on the limiting portion (12).

7. The terminal extraction device according to claim 6, characterized in that: The limiting portion (12) is provided with a second connection hole (122), and the second connection hole (122) is used to fixedly connect the supporting portion (11) and the limiting portion (12).

8. The terminal extraction device according to claim 7, characterized in that: A plurality of the support parts (11) are provided, and a plurality of second connection holes (122) are provided at the connection between the limiting part (12) and each of the support parts (11), and one of the support parts (11) is selectively inserted into a corresponding second connection hole (122).

9. The terminal extraction device according to any one of claims 1 to 8, characterized in that: Each clamping portion (22) is provided with a half groove, and the half grooves on the two clamping portions (22) are combined to form a clamping groove (222), and the clamping groove (222) is used to clamp the terminal body (102).

10. The terminal extraction device according to any one of claims 1 to 8, characterized in that: The outer side of the hand grip (21) is provided with patterns.

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