Telescopic mechanism and discharging device

Abstract

The utility model discloses a telescoping mechanism and a discharging device, and relates to the technical field of electric power device detection equipment, the telescoping mechanism comprises a fixing unit, the fixing unit comprises a fixing housing, the upper side of the fixing housing is fixedly provided with a protection housing, and the protection housing is internally provided with a driving member; the telescopic unit comprises a rotating rod, and a telescopic assembly matched with the rotating rod is further arranged in the fixed shell; the discharging unit comprises a discharging tip arranged at the front end of the telescopic assembly, a discharging wire, a rheostat, a grounding wire, an on-off controller, a current collector and a supporting piece. The beneficial effects of the utility model are that the driving member drives the telescoping assembly to telescope, so that two-stage telescoping of the device can be realized, and manual work can be replaced to accurately control the discharge gap; by arranging the rheostat, the discharge requirements of the device for different capacitor samples can be met, the on-off controller and the telescopic mechanism are matched, full-automatic control over the discharge distance and discharge on-off can be achieved, and danger existing in manual control is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power device detection equipment, in particular to a telescopic mechanism and a discharge device. Background Art

[0002] The discharge rod used in current DC high-voltage generators mainly consists of a metal discharge tip, a discharge resistor, an insulating rod, a grounding soft wire connected to the discharge resistor, and a wire clamp. The problems with this discharge rod are: first, after the large-capacity equipment test is completed, the operator needs to hold the discharge rod and perform gap discharge on the test object. The tester often jitters during the discharge process and fails to control the gap distance properly, which leads to damage to the discharge rod; second, the discharge time to complete the large-capacity equipment test is long and requires repeated discharge. During the discharge process, the operator needs to frequently manually check the overheating of the discharge resistor and continue discharging only after the temperature drops. Not only is the workload large, but the long and repeated discharge process is prone to accidents.

[0003] In view of the above problems, a telescopic mechanism and a discharge device are proposed to solve the above problems. Utility Model Content

[0004] Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above-mentioned existing technical problems, the present utility model is proposed.

[0006] The utility model aims to provide a telescopic mechanism, which aims to solve the problem that the distance between the discharge rod and the test object needs to be manually adjusted during the discharge process.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a telescopic mechanism, which includes a fixing unit, including a fixing shell, a protective shell fixedly provided on the upper side of the fixing shell, and a driving member provided in the protective shell;

[0008] The telescopic unit comprises a rotating rod rotatably arranged inside the fixed shell and matched with the driving member. A telescopic assembly matched with the rotating rod is also arranged inside the fixed shell.

[0009] As a preferred solution of the telescopic mechanism of the present invention, the fixed shell is a cylindrical structure, a gear hole is opened on the upper side of the middle section, a rotating rod rotation groove is provided inside the fixed shell in front of the gear hole, and the rotating rod rotates with it, and fixed key slots are also symmetrically provided on both sides of the fixed shell.

[0010] As a preferred solution of the telescopic mechanism of the present invention, the protective shell covers the gear hole, the driving member is fixedly arranged in the protective shell, and the front end gear of the driving member is arranged in the gear hole and cooperates with the rotating rod.

[0011] As a preferred solution of the telescopic mechanism of the present invention, the rotating rod is a hollow cylindrical structure, the rear end of which is a driven gear, which cooperates with the driving member, and the front side of the driven gear is provided with a first limiting groove, which rotates with the rotating groove of the rotating rod, and the outer surface of the front end of the rotating rod is a rotating thread segment, and rotating key grooves are symmetrically provided on both sides of the rotating thread segment.

[0012] As a preferred solution of the telescopic mechanism of the present invention, the telescopic assembly includes a first-level telescopic rod arranged inside the fixed shell, a second-level telescopic rod arranged inside the first-level telescopic rod, and a transmission rod arranged inside the second-level telescopic rod, the first-level telescopic rod is threadedly engaged with the rotating rod, and the transmission rod is rotationally engaged with the first-level telescopic rod.

[0013] As a preferred solution of the telescopic mechanism of the present invention, the first-level telescopic rod is a hollow cylindrical structure, a rotation limit column is provided inside the rear end thereof, the transmission rod cooperates with it, a first screw hole is provided inside the rotation limit column, which cooperates with the rotating threaded section, the first-level telescopic rod is symmetrically provided with first key grooves on both sides inside and first limit keys are symmetrically provided on both sides outside, and the first limit key cooperates with the fixed key groove.

[0014] As a preferred solution of the telescopic mechanism of the present invention, the secondary telescopic rod is a hollow cylindrical structure, a second screw hole is provided inside the rear end thereof, and second limit keys are symmetrically provided on both sides of the exterior of the secondary telescopic rod, which cooperate with the first keyway.

[0015] As a preferred solution of the telescopic mechanism of the present invention, the transmission rod is a hollow cylindrical structure, and a second limit groove is provided inside the rear end thereof, which is rotatably connected to the rotation limit column, and transmission limit keys are symmetrically provided on both sides of the transmission rod, which cooperate with the rotation key groove, and a transmission thread is provided on the outside of the transmission rod, which cooperates with the second screw hole.

[0016] The beneficial effects of the telescopic mechanism of the present invention are as follows: the driving member drives the rotating rod to rotate, the rotating rod drives the primary telescopic rod to extend and retract and the transmission rod to rotate, and the transmission rod then drives the secondary telescopic rod to extend and retract relative to the primary telescopic rod, thereby realizing the secondary telescopic extension of the device and replacing manual precise control of the discharge gap.

[0017] Another object of the present invention is to provide a discharge device, which aims to provide a safe discharge device that can be applied to different capacitance test pieces.

[0018] In order to solve the above technical problems, the present invention also provides the following technical solutions: a discharge device, which includes a telescopic mechanism; and a discharge unit, including a discharge tip arranged at the front end of the telescopic component, a discharge wire connected to the rear end of the discharge tip, a rheostat connected to the discharge wire, a grounding wire connected to the rheostat, an on-off controller coordinated with the discharge wire, a current collector and a support member coordinated with the fixed shell, wherein two support members are arranged along the front and back of the fixed shell.

[0019] As a preferred solution of the discharge device of the present invention, wherein: a variable resistor is provided on the variable resistor, the grounding wire is connected and cooperated with the variable resistor slider, an adjustment hole is further provided at the upper end of the fixed shell, the upper end of the variable resistor slider extends out of the adjustment hole, a grounding hole is provided at the rear end of the fixed shell, and the grounding wire is fixed in the grounding hole.

[0020] The beneficial effects of the discharge device of the present invention are as follows: by setting a variable resistor, the discharge requirements of the device for different capacitance test pieces can be met; in conjunction with the on-off controller and the telescopic mechanism, the discharge distance and discharge on-off can be controlled fully automatically, avoiding the dangers of manual control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 creative work. Among them:

[0022] Figure 1 It is an overall schematic diagram of the discharge device in the present utility model.

[0023] Figure 2 This is an explosion diagram of the discharge device in the present invention.

[0024] Figure 3 It is a cross-sectional schematic diagram of the discharge device in the present invention.

[0025] Figure 4 It is an exploded cross-sectional view of the telescopic mechanism in the present utility model. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] Secondly, 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 designate a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figures 1 to 4 , which is the first embodiment of the present utility model, provides a setting mechanism, including a fixing unit 100, including a fixing housing 101, a protective shell 102 fixedly provided on the upper side of the fixing housing 101, and a driving member 103 provided in the protective shell 102;

[0031] The telescopic unit 200 includes a rotating rod 201 rotatably disposed inside the fixed housing 101 and cooperating with the driving member 103 . A telescopic assembly 202 cooperating with the rotating rod 201 is also disposed inside the fixed housing 101 .

[0032] Furthermore, the fixed shell 101 is a cylindrical structure, with a gear hole 101a provided on the upper side of the middle section. A rotating rod rotation groove 101b is provided inside the fixed shell 101 in front of the gear hole 101a, and the rotating rod 201 rotates with it to limit the lateral movement of the rotating rod 201. Fixed key grooves 101c are also symmetrically provided on both sides of the fixed shell 101, which extend to the front end of the fixed shell 101.

[0033] Furthermore, the protective shell 102 covers the gear hole 101a to protect its internal components. The driving member 103 is fixedly arranged in the protective shell 102, and the front end gear of the driving member 103 is arranged in the gear hole 101a and cooperates with the rotating rod 201 to provide telescopic power for the telescopic component.

[0034] Furthermore, the rotating rod 201 is a hollow cylindrical structure with both ends connected. Its rear end is a driven gear 201a, which cooperates with the driving member 103. A first limiting groove 201b is provided on the front side of the driven gear 201a, which rotates with the rotating groove 101b of the rotating rod so that it can only rotate relative to the fixed shell 101. The outer surface of the front end of the rotating rod 201 is a rotating thread segment 201c, which is used to control the telescopic movement of the telescopic unit 200. Rotating key grooves 201d are also symmetrically provided on both sides of the rotating thread segment 201c. The rotating thread segment 201c and the rotating key groove 201d extend from its front end to the first limiting groove 201b.

[0035] Furthermore, the telescopic assembly 202 includes a first-level telescopic rod 202a arranged inside the fixed shell 101, a second-level telescopic rod 202b arranged inside the first-level telescopic rod 202a, and a transmission rod 202c arranged inside the second-level telescopic rod 202b. The first-level telescopic rod 202a is threadedly engaged with the rotating rod 201, and the transmission rod 202c is rotationally engaged with the first-level telescopic rod 202a. The second-level telescopic rod 202b and the first-level telescopic rod 202a can move laterally relative to each other, but cannot rotate relative to each other.

[0036] Furthermore, the first-stage telescopic rod 202a is a hollow cylindrical structure, and a rotation limit column 202a-1 is provided inside its rear end, and the transmission rod 202c cooperates with it, so that the transmission rod 202c can only rotate relative to the first-stage telescopic rod 202a. A first screw hole 202a-2 is provided inside the rotation limit column 202a-1, which cooperates with the rotating threaded section 201c. The first-stage telescopic rod 202a is symmetrically provided with first key grooves 202a-3 on both sides of the interior and first limit keys 202a-4 on both sides of the exterior. The first limit key 202a-4 cooperates with the fixed key groove 101c, so that the first-stage telescopic rod 202a can only telescope laterally relative to the fixed shell 101.

[0037] During use, when the telescopic mechanism needs to be extended, the driving member 103 is started to drive the rotating rod 201 to rotate, and the rotating rod 201 cooperates with the first-level telescopic rod 202a. Since the first-level telescopic rod 202a is limited by the fixed key groove 101c, it extends forward under the rotation of the rotating rod 201, thereby realizing the telescopic function.

[0038] Example 2

[0039] Reference Figures 1 to 4 , which is the second embodiment of the present utility model. Based on the previous embodiment, this embodiment provides a telescopic mechanism. Different from the first embodiment, the secondary telescopic rod 202b is a hollow cylindrical structure, and a second screw hole 202b-1 is provided inside the rear end thereof. Second limit keys 202b-2 are symmetrically provided on both sides of the secondary telescopic rod 202b, which cooperate with the first key groove 202a-3 so that the secondary telescopic rod 202b can only move laterally relative to the primary telescopic rod 202a.

[0040] Furthermore, the transmission rod 202c is a hollow cylindrical structure, and a second limit groove 202c-1 is provided inside its rear end, which is rotatably connected to the rotation limit column 202a-1, so that it can only rotate relative to the first-level telescopic rod 202a. Transmission limit keys 202c-2 are also symmetrically provided on both sides of the transmission rod 202c, which cooperate with the rotation key groove 201d, so that it can only move laterally relative to the rotating rod 201. A transmission thread 202c-3 is provided on the outside of the transmission rod 202c, which extends from the front end of the transmission rod 202c to the position of the second limit groove 202c-1, and cooperates with the second screw hole 202b-1.

[0041] During use, after the driving member 103 is started, the first telescopic rod 202a is extended accordingly, and the transmission rod 202c follows the extension of the first telescopic rod 202a. At the same time, the transmission limit key 202c-2 and the rotation key slot 201d cooperate to rotate synchronously with the rotating rod 201, and the second telescopic rod 202b is limited by the first key slot 202a-3, and is extended forward relative to the first telescopic rod 202a under the relative rotation action with the transmission rod 202c, thereby realizing the second-level telescopic function of the telescopic mechanism.

[0042] In summary, the driving member 103 drives the rotating rod 201 to rotate, the rotating rod 201 drives the primary telescopic rod 202a to extend and retract, and the transmission rod 202c to rotate, and the transmission rod 202c then drives the secondary telescopic rod 202b to extend and retract relative to the primary telescopic rod 202a, thereby realizing the secondary telescopic extension of the device, which can replace manual precise control of the discharge gap, and adopts multi-stage extension to ensure the rapid response of the front-end structure.

[0043] Example 3

[0044] Reference Figures 1 and 2 This is the third embodiment of the present invention, which further provides a discharge device. It includes a discharge unit 300, comprising a discharge tip 301 disposed at the front end of the telescopic assembly 202, a discharge wire 302 connected to the rear end of the discharge tip 301, a varistor 303 connected to the discharge wire 302, a grounding wire 304 connected to the varistor 303, an on / off controller 305 cooperating with the discharge wire 302, a current collector 306, and support members 307 cooperating with the fixed housing 101. Two support members 307 are provided along the front and rear of the fixed housing 101.

[0045] It should be noted that the on-off controller 305 adopts an HS5B safety switch to control the on-off of the discharge wire 302 , and the current collector 306 adopts an HC-215 AC voltage and current collection module to monitor the discharge condition of the discharge wire 302 .

[0046] Furthermore, a variable resistor slider 303a is provided on the variable resistor 303, and the grounding wire 304 is connected to the variable resistor slider 303a. An adjustment hole 101d is also provided at the upper end of the fixed shell 101, and the upper end of the variable resistor slider 303a extends out of the adjustment hole 101d. A grounding hole 101e is provided at the rear end of the fixed shell 101, and the grounding wire 304 is fixed in the grounding hole 101e.

[0047] In summary, by setting the variable resistor 303, the discharge requirements of the device for different capacitance samples can be met. In conjunction with the on-off controller 305 and the telescopic mechanism, the discharge distance and discharge on-off can be controlled fully automatically, avoiding the dangers of manual control.

[0048] 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, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without substantially departing 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 described herein that performs the function, 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.

[0049] 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.

[0050] 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.

[0051] 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 telescopic mechanism, characterized in that: include, The fixing unit (100) comprises a fixing housing (101), a protective housing (102) is fixedly provided on the upper side of the fixing housing (101), and a driving member (103) is provided in the protective housing (102); The telescopic unit (200) comprises a rotating rod (201) rotatably arranged inside the fixed housing (101) and cooperating with the driving member (103); a telescopic assembly (202) cooperating with the rotating rod (201) is also arranged inside the fixed housing (101).

2. The telescopic mechanism according to claim 1, wherein: The fixed housing (101) is a cylindrical structure, with a gear hole (101a) provided on the upper side of the middle section. A rotating rod rotation groove (101b) is provided in front of the gear hole (101a) inside the fixed housing (101), and the rotating rod (201) rotates in conjunction with the rotating rod. Fixed key grooves (101c) are also symmetrically provided on both sides of the fixed housing (101).

3. The telescopic mechanism according to claim 2, wherein: The protective shell (102) covers the gear hole (101a), the driving member (103) is fixedly arranged in the protective shell (102), and the front end gear of the driving member (103) is arranged in the gear hole (101a) and cooperates with the rotating rod (201).

4. The telescopic mechanism according to claim 3, wherein: The rotating rod (201) is a hollow cylindrical structure, and its rear end is a driven gear (201a), which cooperates with the driving member (103). The front side of the driven gear (201a) is provided with a first limiting groove (201b), which rotates with the rotating groove (101b) of the rotating rod. The outer surface of the front end of the rotating rod (201) is a rotating thread segment (201c), and rotating key grooves (201d) are symmetrically provided on both sides of the rotating thread segment (201c).

5. The telescopic mechanism according to claim 4, wherein: The telescopic assembly (202) comprises a primary telescopic rod (202a) disposed inside the fixed housing (101), a secondary telescopic rod (202b) disposed inside the primary telescopic rod (202a), and a transmission rod (202c) disposed inside the secondary telescopic rod (202b); the primary telescopic rod (202a) is threadedly engaged with the rotating rod (201), and the transmission rod (202c) is rotationally engaged with the primary telescopic rod (202a).

6. The telescopic mechanism according to claim 5, wherein: The first-stage telescopic rod (202a) is a hollow cylindrical structure, and a rotation limiting column (202a-1) is provided inside the rear end thereof, and the transmission rod (202c) cooperates with the rotation limiting column (202a-1). A first screw hole (202a-2) is provided inside the rotation limiting column (202a-1), which cooperates with the rotating threaded section (201c). The first-stage telescopic rod (202a) is symmetrically provided with first key grooves (202a-3) on both sides inside and first limiting keys (202a-4) are symmetrically provided on both sides outside, and the first limiting keys (202a-4) cooperate with the fixed key groove (101c).

7. The telescopic mechanism according to claim 6, wherein: The secondary telescopic rod (202b) is a hollow cylindrical structure, with a second screw hole (202b-1) provided inside the rear end thereof. Second limit keys (202b-2) are symmetrically provided on both sides of the exterior of the secondary telescopic rod (202b) and cooperate with the first key slot (202a-3).

8. The telescopic mechanism according to claim 7, wherein: The transmission rod (202c) is a hollow cylindrical structure, and a second limiting groove (202c-1) is provided inside the rear end thereof, which is rotatably connected to the rotation limiting column (202a-1). Transmission limiting keys (202c-2) are symmetrically provided on both sides of the transmission rod (202c) and cooperate with the rotation key groove (201d). A transmission thread (202c-3) is provided on the outside of the transmission rod (202c) and cooperates with the second screw hole (202b-1).

9. A discharge device, characterized in that: The invention comprises a telescopic mechanism according to any one of claims 1 to 8; and a discharge unit (300), comprising a discharge tip (301) arranged at the front end of the telescopic component (202), a discharge wire (302) connected to the rear end of the discharge tip (301), a rheostat (303) connected to the discharge wire (302), a grounding wire (304) connected to the rheostat (303), an on-off controller (305) matched with the discharge wire (302), a current collector (306), and a support member (307) matched with the fixed shell (101), wherein two support members (307) are provided along the front and rear of the fixed shell (101).

10. The discharge device according to claim 9, wherein: The variable resistor (303) is provided with a variable resistance slider (303a), the grounding wire (304) is connected and matched with the variable resistance slider (303a), the upper end of the fixed housing (101) is also provided with an adjustment hole (101d), the upper end of the variable resistance slider (303a) extends out of the adjustment hole (101d), the rear end of the fixed housing (101) is provided with a grounding hole (101e), and the grounding wire (304) is fixed in the grounding hole (101e).

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