High-voltage switch cabinet locking ground knife switching-on and switching-off device

Abstract

The utility model relates to the technical field of high-voltage switch cabinets, in particular to a high-voltage switch cabinet locking grounding knife switch opening and closing device and an MPO jumper wire storage device, which comprise an installation unit, a cabinet body and a closing assembly arranged in the cabinet body. The high-voltage switch cabinet locking ground knife switch opening and closing device has the advantages that when a cabinet door is pressed on the lock sleeve, the spring is in a compressed state, when the cabinet door acting on the lock sleeve is moved away, the spring rebounds naturally, the connecting rod drives the moving plate in the connecting seat to move, and therefore the guide rod is matched with the lifting block to drive the driven block to ascend and descend. When the cable chamber door is opened and the grounding switch operation hole is opened, the grounding knife switch opening and closing operation hole is purely mechanically locked, an operation rod cannot be inserted, operation cannot be carried out, and the device is simple in structure, reliable in operation and convenient to operate and does not need human intervention.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switch cabinets, in particular to a locking ground knife opening and closing device of a high-voltage switch cabinet. Background Art

[0002] When inspecting and repairing 10kV high-voltage switchgear, in order to ensure safe operation, it is usually necessary to operate the interlocking mechanism of the grounding switch. This interlocking mechanism is designed to allow the grounding switch to be operated only when the rear lower door of the high-voltage switchgear is closed, so as to prevent the accidental entry into the live compartment.

[0003] However, when conducting preventive tests, the earthing switch needs to be operated with the cable room door open. This requires unlocking the cabinet door so that the interlocking mechanism of the earthing switch can be operated using the operating lever. If the cabinet door is not unlocked, the switch operating hole can still be opened and the operating lever can be inserted, but this may cause damage to the interlocking mechanism of the operating earthing switch, thereby affecting the normal operation of the equipment. Therefore, before operating the earthing switch, it is necessary to ensure that the cabinet door has been unlocked to avoid accidental damage to the interlocking mechanism. Utility Model Content

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

[0005] In view of the problem in the prior art that the interlocking mechanism of the grounding switch is damaged when the grounding switch is operated with the cable room door open, the utility model is proposed.

[0006] Therefore, the utility model aims to provide a high-voltage switch cabinet locking ground knife opening and closing device.

[0007] To solve the above technical problems, the utility model provides the following technical solutions: including an installation unit, including a cabinet and a closing assembly arranged in the cabinet; a locking unit, including a pressing assembly arranged in the cabinet and a connecting assembly arranged in the cabinet.

[0008] As a preferred solution of the locking grounding knife opening and closing device of a high-voltage switch cabinet described in the utility model, the closing assembly includes an operating hole arranged on the cabinet body, and a semicircular groove arranged on the inner wall of the operating hole.

[0009] As a preferred solution of the locking ground knife opening and closing device of a high-voltage switch cabinet described in the utility model, the pressing assembly includes a cabinet door arranged on the cabinet body, a pressing hole arranged on the cabinet door, a fixing seat arranged in the cabinet body, a reset part arranged on the fixing seat, and a telescopic slot arranged on the fixing seat.

[0010] As a preferred solution of the high-voltage switch cabinet locking ground knife opening and closing device described in the utility model, the reset part includes a spring arranged on the fixed seat, a movable hole arranged on the fixed seat, and a locking sleeve arranged in the movable hole.

[0011] As a preferred solution of a high-voltage switch cabinet locking ground knife opening and closing device described in the utility model, the locking sleeve is arranged on the inner ring of the spring, one end of the locking sleeve is spherical and adapted to the pressing hole, a limiting ring is arranged on the locking sleeve, and a connecting rod is arranged on the limiting ring; the connecting rod and the connecting assembly cooperate with each other.

[0012] As a preferred solution of the locking ground knife opening and closing device of a high-voltage switch cabinet described in the utility model, the connecting assembly includes a connecting seat arranged in the cabinet body, a movable groove arranged in the connecting seat, and a movable plate arranged in the movable groove; the connecting rod passes through one side of the connecting seat and is fixedly connected to one side of the movable plate.

[0013] As a preferred solution of the high-voltage switch cabinet locking ground knife opening and closing device described in the utility model, it also includes a movable component, the movable component is arranged in the movable plate, and the movable component includes a displacement groove arranged in the movable plate, and a lifting block arranged in the displacement groove.

[0014] As a preferred solution of the high-voltage switch cabinet locking ground knife opening and closing device described in the utility model, the lifting block is in an "L" shape, a driven block is arranged on the lifting block, and a rectangular groove is arranged on the connecting seat; the driven block is movably connected in the rectangular groove.

[0015] As a preferred solution of the high-voltage switch cabinet locking ground knife opening and closing device described in the utility model, it also includes a guide component, the guide component and the movable component cooperate with each other, the guide component includes a first guide groove arranged on the inner wall of the displacement groove, a second guide groove arranged on the inner wall of the displacement groove, and a third guide groove arranged on the inner wall of the displacement groove.

[0016] As a preferred solution of a high-voltage switch cabinet locking ground knife opening and closing device described in the utility model, wherein: the first guide groove, the second guide groove and the third guide groove are on the same vertical plane and are interconnected, a guide rod arranged in the first guide groove, and a positioning groove arranged on the inner wall of the connecting seat; both ends of the guide rod are movably connected in the positioning groove, and the lifting block is fixedly connected to the outside of the guide rod.

[0017] The utility model provides a high-voltage switch cabinet locking ground knife opening and closing device with beneficial effects: when the cabinet door is pressed on the lock sleeve, the spring is in a compressed state; when the cabinet door acting on the lock sleeve is removed, the spring rebounds naturally, and the connecting rod drives the moving plate in the connecting seat to move, thereby driving the driven block to rise and fall through the guide rod and the lifting block, so that the driven block protrudes outward, thereby achieving the purpose of locking the operating hole; when the cable room door is open, after the grounding switch operating hole is opened, the ground knife opening and closing operating hole is purely mechanically locked, and the operating rod cannot be inserted and cannot be operated; the device has a simple structure, reliable operation, and convenient operation, and does not require human intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of a high-voltage switch cabinet locking ground knife opening and closing device.

[0020] Figure 2 The utility model is a schematic overall cutaway diagram of a high-voltage switch cabinet locking ground knife opening and closing device.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0023] Figure 5 The utility model is a schematic diagram of the partial structure disassembly of a locking ground knife opening and closing device of a high-voltage switch cabinet.

[0024] Figure 6 The utility model is a schematic diagram of the overall structure of a high-voltage switch cabinet locking ground knife opening and closing device. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, 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 in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and 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] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in 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.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figures 3 to 6 , is the first embodiment of the utility model, which provides a high-voltage switch cabinet locking ground knife opening and closing device, which can achieve the effect of purely mechanically locking the ground knife opening and closing operation hole 102a after the cabinet door 201a is opened, including an installation unit 100, including a cabinet 101, and a closing component 102 arranged in the cabinet 101; the locking unit 200, including a pressing component 201 arranged in the cabinet 101, and a connecting component 202 arranged in the cabinet 101. An operation hole 102a is opened on the front surface of the cabinet 101, and the operation hole 102a is in the shape of a circular hole. A grounding switch interlocking mechanism is arranged on its inner wall. The staff can insert the operating rod into the operation hole 102a and interlock it with the rear lower door to prevent accidentally entering the energized interval. A cabinet door 201a is arranged on the rear side of the cabinet 101 for repairing its internal equipment.

[0031] Furthermore, the connecting assembly 202 includes a connecting seat 202a arranged in the cabinet 101, a movable groove 202b arranged in the connecting seat 202a, and a movable plate 202c arranged in the movable groove 202b; the connecting rod 201d-5 passes through one side of the connecting seat 202a and is fixedly connected to one side of the movable plate 202c. The connecting seat 202a is arranged on the inner wall of the cabinet 101 below the operating hole 102a. The connecting seat 202a is rectangular in shape, and a movable groove 202b is opened inside it. The movable groove 202b is slidably connected to the movable plate 202c. The other side of the connecting rod 201d-5 is movably connected in the movable hole 201d-2 and passes through the fixed seat 201c, the connecting rod 201d-5 in sequence. The receiving seat 202a is fixedly connected to one side surface of the movable plate 202c, and a displacement groove 203a is provided on the upper surface of the movable plate 202c. A lifting block 203b is movably connected inside the displacement groove 203a. The lifting block 203b is in an "L" shape. A driven block 203c is fixedly connected to the upper part of the lifting block 203b. A rectangular groove 203d is provided on the upper surface of the connecting seat 202a. The rectangular groove 203d and the driven block 203c are vertically aligned. The driven block 203c can move up and down in the rectangular groove 203d. A semicircular groove 102b is provided on the inner wall of the operating hole 102a near the lower position. The driven block 203c can penetrate the rectangular groove 203d and be movably connected in the semicircular groove 102b.

[0032] Furthermore, the invention also includes a guide assembly 204, the guide assembly 204 and the movable assembly 203 cooperate with each other, the guide assembly 204 includes a first guide groove 204a arranged on the inner wall of the displacement groove 203a, a second guide groove 204b arranged on the inner wall of the displacement groove 203a, and a third guide groove 204c arranged on the inner wall of the displacement groove 203a, and the first guide groove 204a, the second guide groove 204b and the third guide groove 204c are opened at both sides of the inner wall of the displacement groove 203a. The first guide groove 204a and the third guide groove 204c are elliptical grooves and are parallel to each other. The second guide groove 204b is an inclined groove, and its two ends are respectively connected to the first guide groove 204a and the third guide groove 204c. A guide rod 204d is slidably connected inside, and a lifting block 203b is arranged outside the guide rod 204d. The front and rear positions of the connecting seat 202a are both provided with elliptical positioning grooves 204e, which are adapted to the guide rod 204d, and both ends of the guide rod 204d are limited at The positioning groove 204e plays a role of positioning and guiding. When the movable plate 202c moves, the first guide groove 204a, the second guide groove 204b and the third guide groove 204c will move. When the guide rod 204d is in the second guide groove 204b, its horizontal height will rise or fall with the moving position of the movable plate 202c. Through the limit of the positioning groove 204e, the guide rod 204d can only move vertically upward or downward, and cooperate with the driven block 20 3c, when the driven block 203c passes through the semicircular groove 102b, the operating rod will be blocked by the driven block 203c and cannot contact the grounding switch interlocking mechanism set in the operating hole 102a, thereby preventing the occurrence of misoperation and achieving a locked state, thereby avoiding damage to the grounding switch interlocking mechanism. On the contrary, the driven block 203c moves vertically downward, the driven block 203c is separated from the semicircular groove 102b, and the operating rod can be normally inserted into the operating hole 102a, and the locked state is released at this time.

[0033] Example 2

[0034] Reference Figures 1 to 6 , which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a locking unit 200200 for a high-voltage switch cabinet locking ground knife opening and closing device, which solves the problem of how the driven block 203c automatically locks the operating hole 102a after the cabinet door 201a is opened, including.

[0035] Specifically, the pressing assembly 201 includes a cabinet door 201a disposed on the cabinet body 101, a pressing hole 201b disposed on the cabinet door 201a, a fixing seat 201c disposed in the cabinet body 101, a reset portion 201d disposed on the fixing seat 201c, and a telescopic slot 201e disposed on the fixing seat 201c. The cabinet door 201a is rotatably connected to the rear portion of the cabinet body 101. A semicircular pressing hole 201b is provided on the inner side of the cabinet door 201a. The inner wall of the cabinet body 101 is close to the cabinet door 201a. 1a and a fixing seat 201c is arranged on the same horizontal plane as the semicircular hole, a circular expansion groove 201e is opened on one side of the fixing seat 201c, a spring 201d-1 is fixedly connected to the bottom of the inner wall of the expansion groove 201e, and a locking sleeve 201d-3 is fixedly connected to one end of the spring 201d-1. The function of the expansion groove 201e is to apply pressure to the spring 201d-1 when the locking sleeve 201d-3 is subjected to pressure from one side, so that the spring 201d-1 can have enough space to shrink , storing force, and allowing the lock sleeve 201d-3 to have enough space for displacement. One end of the lock sleeve 201d-3 is semicircular and matches with the pressing hole 201b. The other end of the lock sleeve 201d-3 is fixedly installed with a limiting ring 201d-4. One side surface of the fixed seat 201c is located inside the telescopic groove 201e and is provided with a movable hole 201d-2. The inner diameter of the movable hole 201d-2 matches with the limiting ring 201d-4, and the limiting ring 201d-4 The movable connection is in the movable hole 201d-2, but the hole diameter of the movable hole 201d-2 is equal to the diameter of the other end of the locking sleeve 201d-3, which makes the locking sleeve 201d-3 move in the movable hole 201d-2 through the limiting ring 201d-4, but the locking sleeve 201d-3 cannot be separated from the movable hole 201d-2, which achieves the effect that the locking sleeve 201d-3 can only move within a specific range. The other side of the limiting ring 201d-4 is fixedly connected to the connecting rod 201d-5.

[0036] When in use, when the cabinet door 201a is closed, one end of the lock sleeve 201d-3 will be limited in the pressing hole 201b, and the cabinet door 201a will apply pressure to the lock sleeve 201d-3, so that the spring 201d-1 will shrink into the telescopic groove 201e. At this time, the spring 201d-1 is in a contracted state. Under the push of the cabinet door 201a, the lock sleeve 201d-3 drives the connecting rod 201d-5 to prevent the moving plate 202c from moving to the other side. At this time, the guide rod 204d will slide into the first guide groove 204a, and the driven block 203c will be separated from the semicircular groove 102b. The operator can adjust the grounding switch interlocking mechanism through the operating rod. When the cabinet door 201a is opened, the spring 201d- Under the action of the stretching elastic force, the lock sleeve 201d-3 is rebounded, and the connecting rod 201d-5 is driven to move to one side, and the moving plate 202c is driven to move to one side. As the moving plate 202c moves, the guide rod 204d will slide in the first guide groove 204a, and then enter the second guide groove 204b. As the moving plate 202c continues to move, the guide rod 204d will drive the lifting block 203b to move vertically upward and enter the second guide groove 204b. At this time, the driven block 203c has moved vertically upward to the operating hole 102a, so as to achieve the purpose of locking the operating hole 102a. The device has a simple structure, reliable operation, and convenient operation without human intervention. The problem of damage to the interlocking mechanism of the operating grounding switch when the cabinet door 201a is opened is solved.

[0037] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. 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 ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also 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 a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0038] 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.

[0039] It will be appreciated that in the development of any actual implementation, 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 be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A high-voltage switch cabinet locking ground switch opening and closing device, characterized in that: include, An installation unit (100) comprises a cabinet (101) and a closing assembly (102) arranged in the cabinet (101); The locking unit (200) comprises a pressing component (201) arranged in the cabinet (101) and a connecting component (202) arranged in the cabinet (101).

2. A high-voltage switch cabinet locking ground switch opening and closing device according to claim 1, characterized in that: The closing assembly (102) comprises an operating hole (102a) arranged on the cabinet (101), and a semicircular groove (102b) arranged on the inner wall of the operating hole (102a).

3. A high-voltage switch cabinet locking ground switch opening and closing device as claimed in claim 2, characterized in that: The pressing assembly (201) comprises a cabinet door (201a) arranged on the cabinet body (101), a pressing hole (201b) arranged on the cabinet door (201a), a fixing seat (201c) arranged in the cabinet body (101), a reset portion (201d) arranged on the fixing seat (201c), and a telescopic slot (201e) arranged on the fixing seat (201c).

4. A high-voltage switch cabinet locking ground switch opening and closing device as claimed in claim 3, characterized in that: The reset portion (201d) comprises a spring (201d-1) arranged on the fixing seat (201c), a movable hole (201d-2) arranged on the fixing seat (201c), and a locking sleeve (201d-3) arranged in the movable hole (201d-2).

5. A high-voltage switch cabinet locking ground switch opening and closing device as claimed in claim 4, characterized in that: The locking sleeve (201d-3) is arranged on the inner ring of the spring (201d-1); one end of the locking sleeve (201d-3) is spherical and matches the pressing hole (201b); a limiting ring (201d-4) is arranged on the locking sleeve (201d-3); and a connecting rod (201d-5) is arranged on the limiting ring (201d-4); The connecting rod (201d-5) and the connecting assembly (202) cooperate with each other.

6. A high-voltage switch cabinet locking ground switch opening and closing device as claimed in claim 5, characterized in that: The connection assembly (202) comprises a connection seat (202a) disposed in the cabinet (101), a movable groove (202b) disposed in the connection seat (202a), and a movable plate (202c) disposed in the movable groove (202b); The connecting rod (201d-5) passes through one side of the connecting seat (202a) and is fixedly connected to one side of the moving plate (202c).

7. A high-voltage switch cabinet locking ground switch opening and closing device as claimed in claim 6, characterized in that: It also includes a movable component (203), the movable component (203) is arranged in the movable plate (202c), and the movable component (203) includes a displacement groove (203a) arranged in the movable plate (202c), and a lifting block (203b) arranged in the displacement groove (203a).

8. A high-voltage switch cabinet locking ground switch opening and closing device as claimed in claim 7, characterized in that: The lifting block (203b) is in an "L" shape, a driven block (203c) is arranged on the lifting block (203b), and a rectangular groove (203d) is arranged on the connecting seat (202a); The driven block (203c) is movably connected in the rectangular groove (203d).

9. A high-voltage switch cabinet locking ground switch opening and closing device as claimed in claim 8, characterized in that: The invention also comprises a guide assembly (204), wherein the guide assembly (204) and the movable assembly (203) cooperate with each other, and the guide assembly (204) comprises a first guide groove (204a) arranged on the inner wall of the displacement groove (203a), a second guide groove (204b) arranged on the inner wall of the displacement groove (203a), and a third guide groove (204c) arranged on the inner wall of the displacement groove (203a).

10. A high voltage switch cabinet locking ground switch opening and closing device according to claim 9, characterized in that: The first guide groove (204a), the second guide groove (204b) and the third guide groove (204c) are on the same vertical plane and are interconnected; a guide rod (204d) is arranged in the first guide groove (204a); and a positioning groove (204e) is arranged on the inner wall of the connecting seat (202a); The two ends of the guide rod (204d) are movably connected in the positioning groove (204e), and the lifting block (203b) is fixedly connected to the outer side of the guide rod (204d).

Images