Controllable end of elbow test pin

Abstract

The utility model relates to the field of detection tools, and discloses a controllable end of an elbow test pin, which comprises a clamping assembly comprising a clamping jaw and an insulating sleeve, and the clamping jaw is positioned in the insulating sleeve and is in sliding connection with the insulating sleeve; and the fixing assembly is in threaded connection with the clamping assembly. Through mutual cooperation between the clamping assembly and the fixing assembly and design of mutual connection of related mechanical mechanisms, contact pins of different sizes can be made to be adaptive to the end, the contact pins of the end can be replaced, the size of a bayonet of the end can be adjusted, and the effect that the contact pin end can be adjusted and controlled is achieved through simple operation of a single device.

Description

Technical Field

[0001] The utility model relates to the field of detection tools, in particular to a controllable end of an elbow test pin. Background Art

[0002] Test pins are widely used in electrical testing. Their primary function is to connect test leads to terminals or devices requiring test current or voltage. Currently, the most widely used test pins are straight and 7-shaped. Common pin lengths include: 1mm diameter test pins with a length of 42mm, 2mm diameter test pins with a length of 43mm, and Phoenix adapter bridges (Type-RPS) with a length of 45mm. When connected to a test lead, the straight-shaped test pin, including the bend range for the test lead, is approximately 90mm long, making it suitable for use in unrestricted work environments. However, in real-world environments, due to overall layout constraints, some areas are very narrow, leaving insufficient space for connecting test leads, which can be inconvenient for field work. While 7-shaped test pins can be used in confined spaces, both types of pins are slender and easily damaged, making them difficult to remove and replace. Furthermore, different working environments require different pin diameters, making them difficult to meet diverse testing conditions.

[0003] Therefore, it is necessary to design a controllable end for the elbow test pin, which is connected to each other by designing relevant mechanical mechanisms, so that pins of different sizes can be adapted to this end, the end pins can be replaced, and the end bayonet size can be adjusted, so that the purpose of the pin end being controllable can be achieved through simple operation of a single device. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned prior art, that the existing pins are slender and easy to break and cannot be disassembled and replaced, and different working environments require different pin diameters, which makes it difficult to meet different test conditions, the present utility model is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is to design a controllable terminal for elbow test pins, which is interconnected by designing relevant mechanical mechanisms, so that pins of different sizes can be adapted to this terminal, the terminal pins can be replaced, the terminal bayonet size can be adjusted, and the purpose of adjusting the pin terminal can be achieved through simple operation of a single device.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a controllable end of an elbow test pin, comprising a clamping assembly, including a clamping claw and an insulating sleeve, wherein the clamping claw is located inside the insulating sleeve and is slidably connected thereto;

[0008] A fixing assembly is threadedly connected to the clamping assembly.

[0009] As a preferred solution of the controllable end of the elbow test pin of the utility model, the fixing assembly includes an insulating shell, a locking member, and a conductive member fixedly connected inside the insulating shell, and the locking member is fixedly connected to the outer surface of the insulating shell.

[0010] As a preferred solution of the controllable end of the elbow test pin of the utility model, wherein: the clamping claw is fixedly connected to the sliding member near the end surface of the insulating shell, a sliding groove is provided on the surface of the insulating shell, the sliding member is slidably connected to the sliding groove, and a first elastic member is fixedly connected in the sliding groove, and the other end of the first elastic member is fixedly connected to the sliding member.

[0011] As a preferred solution of the controllable end of the elbow test pin of the utility model, one end of the insulating sleeve is provided with an insertion hole, the inner surface is provided with a first inclined surface and a first thread, and the outer surface is provided with a first annular groove and a second annular groove.

[0012] As a preferred solution of the controllable end of the elbow test pin of the utility model, wherein: the surface of the clamping jaw is provided with a second inclined surface, and the second inclined surface can contact the first inclined surface.

[0013] As a preferred solution of the controllable end of the elbow test pin of the utility model, wherein: a second thread is provided on the surface of the insulating shell, and the second thread is threadably connected to the first thread.

[0014] As a preferred solution of the controllable end of the elbow test pin of the utility model, the locking member includes a fixing seat, a locking column, an adjusting rod and a second elastic member, the fixing seat is fixedly connected to the insulating shell, and the adjusting rod is rotatably connected to the locking column.

[0015] As a preferred solution of the controllable end of the elbow test pin of the utility model, wherein: a clamping column groove is formed through the fixing seat, and the locking clamping column is slidably connected to the clamping column groove.

[0016] As a preferred solution of the controllable end of the elbow test pin of the present invention, the locking column can enter the first annular groove and the second annular groove.

[0017] As a preferred solution of the controllable end of the elbow test pin of the utility model, a connecting hole is provided inside the conductive part.

[0018] The beneficial effects of the present invention are as follows: through the mutual cooperation between the clamping component and the fixing component, and the design of the mutual connection of related mechanical mechanisms, pins of different sizes can be adapted to the terminal, the terminal pins can be replaced, the terminal bayonet size can be adjusted, and the effect of the pin terminal being adjustable can be achieved through the simple operation of a single device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is an overall schematic diagram of the controllable end of the elbow test pin according to an embodiment of the present invention;

[0021] Figure 2 A cross-sectional view of a controllable end of an elbow test pin according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded view of the structure of the controllable end of the elbow test pin according to an embodiment of the present invention;

[0023] Figure 4 A structural sectional isometric view of a controllable end of an elbow test pin according to an embodiment of the present invention;

[0024] Figure 5 A schematic cross-sectional isometric view of the connection structure of the controllable end of the elbow test pin according to an embodiment of the present invention; DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0028] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1-5 , which is the first embodiment of the utility model. This embodiment provides a controllable end of an elbow test pin. Through the mutual cooperation between the clamping component and the fixing component, the relevant mechanical mechanisms are designed to be connected to each other, so that pins of different sizes can be adapted to this end. The end pins can be replaced, and the end bayonet size can be adjusted. The effect of the pin end being adjustable can be achieved through the simple operation of a single device. It includes

[0031] The clamping assembly 100 and the fixing assembly 200 include a clamping jaw 101 and an insulating sleeve 102. The clamping jaw 101 is located inside the insulating sleeve 102. The clamping jaw 101 is arranged in a circular array and is slidably connected to the fixing assembly 200. It is composed of four parts of the same size. The clamping jaw 101 can move centripetally. The insulating sleeve 102 is located on the outside of the clamping jaw 101. External force acts on the surface of the insulating sleeve 102, and the insulating sleeve 102 rotates. Due to the limitation of the thread, it moves horizontally. The inner wall of the insulating sleeve 102 squeezes the clamping jaw 101, and the clamping jaw 101 is tightened by force, thereby changing the diameter of the hollow part in the middle of the clamping jaw 101 to adapt to pins of different sizes, so as to achieve the effect of interchangeable pins of different sizes to meet different usage scenarios. The fixing assembly 200 is equivalent to the base of the entire clamping assembly 100 and cooperates with the clamping assembly 100 for clamping. The fixing assembly 200 includes an insulating housing 201, a locking member 202, and a conductive member 203 fixedly connected to the interior of the insulating housing 201. The insulating housing 201 and the insulating sleeve 102 have the same diameter, enabling a threaded connection. The insulating housing 201 is L-shaped, requiring more space for operation than a traditional straight-line shape and limiting its use. The locking member 202 is fixedly connected to its surface, locking the insulating sleeve 102 to prevent the clamping assembly 100 from loosening due to loosening of the insulating sleeve 102 during use, thereby ensuring the relative stability of the clamping assembly 100. The conductive member 203 is a conductor made of the same material as the pin, ensuring that the pin can smoothly transmit the measured information after entering the clamping assembly 100 and contacting the conductive member 203. The conductive member 203 has a connection hole 203a on the other end away from the contact with the pin. The connection hole 203a is adapted to the plug cable of existing testing equipment, allowing it to be connected to other testing equipment to achieve a conductive effect. The outer wall of the conductive member 203 is tightly fitted and fixedly connected to the inner wall of the insulating shell 201. The insulating shell 201 and the insulating sleeve 102 are both made of insulating materials to ensure safety in use.

[0032] In summary, through the mechanical connection between the clamping component 100 and the fixing component 200, the clamping jaw 101 can be retracted and extended, thereby achieving the effect of fixing pins of different sizes, making the pins replaceable and adaptable to multiple sizes; at the same time, the insulating sleeve 102 is limited by the locking member 202, so that the internal size of the clamping jaw 101 is relatively fixed, thereby firmly fixing the pins.

[0033] Example 2

[0034] Reference Figure 1-5, which is the second embodiment of the present invention. This embodiment is based on the previous embodiment and differs from the previous embodiment in that: a sliding member 101a is fixedly connected to the end surface of the insulating housing 201 near the clamping jaw 101. The sliding member 101a is in the shape of a long column. Four centripetal sliding grooves 201a are synchronously provided on the surface of the insulating housing 201 relative to the clamping jaw 101. The sliding member 101a can slide in the sliding grooves 201a, thereby driving the clamping jaw 101 fixedly connected to the sliding member 101a to perform centrifugal or centripetal movement, thereby achieving the effect of expanding or contracting the central gap of the clamping jaw 101. In addition to sliding in the sliding groove 201a in accordance with the inner wall, the sliding member 101a is also fixedly connected to the first elastic member 201b fixedly connected to the centrifugal end surface of the sliding groove 201a. The first elastic member 201b is used to assist the clamping jaw 101 in resetting after being compressed, and at the same time ensure that when no external force is applied, the diameter of the central gap of the clamping jaw 101 remains at 2mm to facilitate the insertion of the pin. The end of the clamping jaw 101 away from the insulating housing 201 is rounded to facilitate the insertion of the pin.

[0035] Furthermore, a first thread 102c is provided on the inner surface of the insulating sleeve 102, and a second thread 201c is provided on the outer surface of the insulating shell 201. The horizontal rotation movement of the insulating sleeve 102 is achieved through the mutual cooperation of the first thread 102c and the second thread 201c; a first inclined surface 102b is also provided on the side of the inner surface of the insulating sleeve 102 away from the insulating shell 201, and the first inclined surface 102b is conical. A second inclined surface 101b is provided on the surface of the clamping jaw 101, and the horizontal rotation movement of the insulating sleeve 102 drives the first inclined surface 102b to squeeze the second inclined surface 101b. One end of the insulating sleeve 102 has an insertion hole 102a for the pin to enter. When a 2mm diameter pin is inserted, it fills the central gap of the clamping jaw 101. The first bevel 102b compresses the second bevel 101b. Due to the compression of the insulating sleeve 102, the clamping jaw 101 is horizontally limited by the sliding groove 201a, and can only move centripetally, thereby shrinking the central gap of the clamping jaw 101 and clamping the pin. When a 1mm diameter pin is inserted, the first bevel 102b compresses the second bevel 101b, and the clamping jaw 101 is squeezed by the insulating sleeve 102, moving centripetally. The central gap of the clamping jaw 101 continuously shrinks until the pin is clamped. This allows for the securement of two different pin sizes, facilitating replacement and assembly, and expanding its application range.

[0036] Example 3

[0037] Reference Figure 1-5, which is the third embodiment of the present utility model, provides a controllable end of an elbow test pin. This embodiment is based on the previous embodiment, and differs from the previous embodiment in that a first annular groove 102d and a second annular groove 102e are provided on the surface of the insulating sleeve 102, and the first annular groove 102d and the second annular groove 102e are equal in size and are arranged in parallel.

[0038] Furthermore, the locking member 202 secures the relative position of the insulating sleeve 102 and is comprised of a fixing base 202a, a locking post 202b, an adjustment rod 202c, and a second elastic member 202d. The fixing base 202a is fixedly connected to the outer surface of the insulating housing 201 and is disc-shaped, serving as the carrier of the entire locking member 202. A post groove 202a-1 is defined through the surface of the fixing base 202a. The inner diameter of the post groove 202a-1 is smaller at the top and larger at the bottom, allowing the locking post 202b to slide smoothly within the post groove 202a-1. The outer portion of the locking post 202b is engaged by the second elastic member 202d, the other end of which is fixedly connected to the surface of the post groove 202a-1, securing the locking post 202b within the post groove 202a-1 and preventing it from falling out. The locking post 202b is rotatably connected to the adjustment rod 202c. Applying an external force to the adjustment rod 202c causes it to rotate 90 degrees around the locking post 202b. When an external force is applied to the adjustment rod 202c, causing it to become perpendicular to the fixing base 202a, the locking post 202b fully enters the post groove 202a-1. The insulating sleeve 102 rotates to clamp the internal pins. Applying an external force to the adjustment rod 202c causes it to become relatively parallel to the fixing base 202a, causing the locking post 202b to protrude from the post groove 202a-1 and enter the first annular groove 102d or the second annular groove 102e, depending on the size of the pin. This secures the insulating sleeve 102 in place, locking it in place and achieving a locking effect.

[0039] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0040] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0041] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A controllable elbow test pin terminal, characterized by: include, A clamping assembly (100) comprises a clamping jaw (101) and an insulating sleeve (102), wherein the clamping jaw (101) is located inside the insulating sleeve (102) and is slidably connected thereto; A fixing assembly (200) is threadedly connected to the clamping assembly (100).

2. The elbow test pin controllable terminal according to claim 1, characterized in that: The fixing assembly (200) comprises an insulating shell (201), a locking member (202), and a conductive member (203) fixedly connected inside the insulating shell (201), wherein the locking member (202) is fixedly connected to the outer surface of the insulating shell (201).

3. The elbow test pin controllable terminal according to claim 2, characterized in that: The clamping jaw (101) is fixedly connected to a sliding member (101a) close to the end surface of the insulating shell (201); a sliding groove (201a) is provided on the surface of the insulating shell (201); the sliding member (101a) is slidably connected to the sliding groove (201a); and a first elastic member (201b) is fixedly connected in the sliding groove (201a); the other end of the first elastic member (201b) is fixedly connected to the sliding member (101a).

4. The elbow test pin controllable terminal according to claim 3, characterized in that: An insertion hole (102a) is provided at one end of the insulating sleeve (102), a first inclined surface (102b) and a first thread (102c) are provided on the inner surface, and a first annular groove (102d) and a second annular groove (102e) are provided on the outer surface.

5. The elbow test pin controllable terminal according to claim 4, characterized in that: The surface of the clamping jaw (101) is provided with a second inclined surface (101b), and the second inclined surface (101b) is capable of contacting the first inclined surface (102b).

6. The elbow test pin controllable terminal according to claim 5, characterized in that: A second thread (201c) is provided on the surface of the insulating shell (201), and the second thread (201c) is threadably connected to the first thread (102c).

7. The elbow test pin controllable terminal according to claim 6, characterized in that: The locking member (202) comprises a fixing seat (202a), a locking column (202b), an adjusting rod (202c) and a second elastic member (202d); the fixing seat (202a) is fixedly connected to the insulating shell (201); and the adjusting rod (202c) is rotatably connected to the locking column (202b).

8. The elbow test pin controllable terminal according to claim 7, characterized in that: The fixing seat (202a) is provided with a clamping column groove (202a-1) extending therethrough, and the locking clamping column (202b) is slidably connected to the clamping column groove (202a-1).

9. The elbow test pin controllable terminal according to claim 8, characterized in that: The locking column (202b) is capable of entering the first annular groove (102d) and the second annular groove (102e).

10. The elbow test pin controllable terminal according to claim 9, characterized in that: A connecting hole (203a) is provided inside the conductive member (203).

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