Handcart frame and longitudinal rotation isolation vacuum circuit breaker

Abstract

The utility model provides a handcart frame and a longitudinal rotation isolation vacuum circuit breaker, the handcart frame comprises a frame cross beam, a pole support, a control mechanism fixing frame and a ground lug, the pole support is vertically arranged at one end of the frame cross beam and is used for being connected with one end of a longitudinal beam; the operating mechanism fixing frame is arranged at the other end of the frame cross beam and used for fixing the operating mechanism, and the grounding piece is installed on the frame cross beam, located between the pole support and the operating mechanism fixing frame and used for being inserted into a grounding clamp on a cabinet body to complete grounding connection when the handcart frame stretches into the cabinet body. The handcart frame is simple in structure and easy to design and process, the grounding sheet is arranged on the frame cross beam and is connected with the grounding clamp on the cabinet body when the handcart is inserted into a proper position in the cabinet body, the grounding structure is simpler, and the connection is convenient and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment. Specifically, the utility model relates to a trolley frame and a vertical rotation isolating vacuum circuit breaker. Background Art

[0002] In a vertical rotation isolating vacuum circuit breaker, three-phase pole columns are connected to an operating mechanism through a longitudinal beam, so as to realize isolation and circuit breaker functions under the control of the operating mechanism. The three-phase pole columns and the operating mechanism are installed on a trolley frame to form a trolley, and the trolley is pluggably installed in the cabinet body of the vertical rotation isolating vacuum circuit breaker. A grounding structure is arranged between the trolley and the cabinet body. However, the existing grounding structure between the trolley and the cabinet body is complex, not convenient for grounding connection, and there is also a potential safety hazard of poor grounding. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a trolley frame with a simple structure and convenient grounding connection, and a vertical rotation isolating vacuum circuit breaker applying the trolley frame.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] As a first aspect, the utility model provides a trolley frame, which is applicable to a vertical rotation isolating vacuum circuit breaker and realizes pluggable connection between the three-phase pole columns and the operating mechanism of the vertical rotation isolating vacuum circuit breaker and the cabinet body. Among them, the three-phase pole columns are connected to the operating mechanism through a longitudinal beam. The trolley frame includes a frame cross beam, a pole column bracket, an operating mechanism fixing frame and a grounding piece. The pole column bracket stands at one end of the frame cross beam and is used for connecting to one end of the longitudinal beam. The operating mechanism fixing frame is arranged at the other end of the frame cross beam and is used for fixing the operating mechanism. The grounding piece is installed on the frame cross beam and is located between the pole column bracket and the operating mechanism fixing frame, and is used for inserting into a grounding clip on the cabinet body to complete grounding connection when the trolley frame extends into the cabinet body.

[0006] In one implementation, the frame cross beam includes two side-by-side arranged cross beam square tubes. The grounding piece is installed on one of the cross beam square tubes. The pole column bracket includes a pair of columns fixedly corresponding to the two cross beam square tubes one by one and a cross bar bridging the pair of columns. A pin hole for passing a pin shaft to connect with the longitudinal beam is opened on the cross bar.

[0007] In one implementation, the columns are fixed to the cross beam square tubes from the mutually facing sides of the two cross beam square tubes.

[0008] In one implementation, rollers are arranged at the bottom end of the frame cross beam. The rollers are embedded in the cross beam square tubes and partially extend out from the bottom end of the cross beam square tubes.

[0009] In one embodiment, multiple groups of the rollers are evenly distributed along the length direction of the frame cross beam, and each group of rollers includes two rollers, which are respectively connected to two cross beam square tubes in one-to-one correspondence.

[0010] In one embodiment, the manipulator mechanism fixing frame includes a pair of fixing rods erected on the frame cross beam, and the fixing rods are provided with fixing holes for fixing the manipulator mechanism.

[0011] In one embodiment, the grounding piece includes a vertically integrated vertical end and a horizontal end. The vertical end is used to be inserted into the grounding clip, and the horizontal end is provided with a plurality of mounting holes along the length direction. The frame cross beam is correspondingly provided with screw holes for mounting the grounding piece on the frame cross beam by means of screws.

[0012] As a second aspect, the present utility model further provides a vertical rotation isolation vacuum circuit breaker, which includes a cabinet body, three-phase pole columns, a manipulator mechanism and the above-mentioned handcart frame. The three-phase pole columns and the manipulator mechanism are both mounted on the handcart frame, the handcart frame is detachably connected to the cabinet body, and the cabinet body is provided with the grounding clip.

[0013] In one embodiment, the grounding clip includes an L-shaped mounting plate and a pair of clamping plates. The L-shaped mounting plate is used to be mounted on the cabinet body, and the pair of clamping plates are connected to the L-shaped mounting plate from both sides of the L-shaped mounting plate and form a clamping opening for clamping the grounding piece.

[0014] In one embodiment, the end of the clamping plate along the length direction is bent to form a guiding inclined surface, and a pressing column is provided on the opposite surface of the two clamping plates. The pressing column presses against both sides of the grounding piece when the grounding piece is inserted into the clamping opening.

[0015] The beneficial effects brought by the technical solution provided by the present utility model are as follows: the frame cross beam, the pole support and the manipulator mechanism fixing frame of the handcart frame of the present utility model are all formed by welding square tubes, with simple structure, easy to design and process; the grounding piece is arranged on the frame cross beam and is connected to the grounding clip on the cabinet body when the handcart is inserted into the appropriate position in the cabinet body, and the grounding structure is more concise, and the connection is convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model.

[0017] Figure 1 It is a schematic structural diagram of a handcart frame provided by an embodiment of the present utility model;

[0018] Figure 2 For Figure 1 It is a schematic structural diagram of the handcart frame shown from another perspective;

[0019] Figure 3 For Figure 1 the schematic diagram of the insertion and fitting structure between the handcart frame and the cabinet body shown in the figure, the handcart frame is inserted into the cabinet body along the direction shown by the arrow;

[0020] Figure 4 the schematic diagram of the structure of the grounding clamp provided by an embodiment of the present invention;

[0021] Figure 5 the schematic diagram of the structure of the handcart of the vertical rotation isolation vacuum circuit breaker provided by an embodiment of the present invention. Specific embodiments

[0022] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0023] It should be understood that the steps recorded in the method embodiments of the present invention can be executed in different orders and / or executed in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this regard.

[0024] The term "including" and its variations used herein are open-ended, that is, "including but not limited to". The term "connection" can be a direct connection or an indirect connection through an intermediate component (element). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0025] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish devices, modules or units, and are not used to limit that these devices, modules or units must be different devices, modules or units, nor are they used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0026] Please combine Figures 1 to 5, the present utility model provides a handcart frame 100, which is applicable to a vertical rotation isolating vacuum circuit breaker. A three-phase pole column 300 and an operating mechanism 400 are installed on the handcart frame 100 to form a handcart, and the handcart is pluggably inserted into the cabinet body 200 of the vertical rotation isolating vacuum circuit breaker and is grounded. Among them, the three-phase pole column 300 is installed on the handcart frame 100 through a longitudinal beam 500 connected between the handcart frame 100 and the operating mechanism 400.

[0027] In one implementation, the handcart frame includes a frame cross beam 10, a pole column support 20, an operating mechanism fixing frame 30, and a grounding plate 40. The pole column support 20 stands vertically at one end of the frame cross beam 10 and is used to connect to one end of the longitudinal beam for installing the three-phase pole column. The operating mechanism fixing frame 30 is arranged at the other end of the frame cross beam 10 and is used to fix the operating mechanism. The grounding plate 40 is installed on the frame cross beam 10 and is located between the pole column support 20 and the operating mechanism fixing frame 30, and is used to insert into the grounding clamp 210 on the cabinet body to complete the grounding connection when the handcart frame extends into the cabinet body.

[0028] In one implementation, the frame cross beam 10 includes two side-by-side arranged cross beam square tubes. The grounding plate 40 is installed on one of the cross beam square tubes. The pole column support 20 includes a pair of columns 21 fixedly corresponding to the two cross beam square tubes one by one and a cross bar 22 straddling the pair of columns 21. A pin hole for passing through a pin shaft to connect with the longitudinal beam is opened on the cross bar 22.

[0029] In one implementation, the columns 21 are fixed to the cross beam square tubes from the mutually facing sides of the two cross beam square tubes, so as to form a blank area outside the columns 21 and above the cross beam square tubes to make way for the connection between the grounding plate 40 and the grounding clamp 210.

[0030] In one implementation, rollers 50 are provided at the bottom end of the frame cross beam 10. The rollers 50 are embedded in the cross beam square tubes and partially extend from the bottom end of the cross beam square tubes. By providing the rollers 50, it is convenient to move the handcart.

[0031] In one implementation, multiple groups of the rollers 50 are evenly distributed along the length direction of the frame cross beam 10. Each group of rollers 50 includes two rollers 50, which are connected to the two cross beam square tubes one by one.

[0032] In one implementation, the operating mechanism fixing frame 30 includes a pair of fixing rods standing vertically on the frame cross beam 10, and fixing holes for fixing the operating mechanism are opened on the fixing rods.

[0033] Optionally, the columns of the pole column support 20, the frame cross beam, and the fixing rods of the operating mechanism fixing frame 30 are all made of square tubes, so that the handcart frame has a relatively high structural strength on the basis of the relatively light weight of the handcart.

[0034] In one embodiment, the grounding plate 40 includes a vertically integrated end and a horizontally integrated end. The vertically integrated end is used to be inserted into the grounding clip 210. The horizontally integrated end is provided with a plurality of mounting holes along the length direction. The vehicle frame cross beam 10 is correspondingly provided with screw holes 11 for the mounting holes, and is used to mount the grounding plate 40 on the vehicle frame cross beam 10 by means of screws. By providing a plurality of mounting holes on the grounding plate 40 to connect with the vehicle frame cross beam 10, the horizontally integrated end of the grounding plate 40 can be well attached to the vehicle frame cross beam 10, ensuring the grounding effect.

[0035] In the trolley frame 100 of the present utility model, the vehicle frame cross beam 10, the pole support 20, and the operating mechanism fixing frame 30 are all formed by welding square tubes, with a simple structure, easy to design and process; the grounding plate 40 is arranged on the vehicle frame cross beam 10 and is connected to the grounding clip 210 on the cabinet body when the trolley is inserted into the appropriate position in the cabinet body, and the grounding structure is more concise, with convenient and reliable connection.

[0036] As a second aspect, the present utility model further provides a vertical rotation isolating vacuum circuit breaker, including a cabinet body, three-phase pole columns 300, an operating mechanism 400, and the above-mentioned trolley frame 100. The three-phase pole columns and the operating mechanism are both installed on the trolley frame. The trolley frame is detachably connected to the cabinet body 200, and the grounding clip 210 is provided on the side plate of the cabinet body.

[0037] In one embodiment, the grounding clip 210 includes a linear mounting plate 211 and a pair of clamping plates 212. The linear mounting plate is used to be mounted on the cabinet body and is electrically connected to the grounding system. The pair of clamping plates 212 are connected to the linear mounting plate from both sides of the lower end of the linear mounting plate and form a clamping opening 213 for clamping the grounding plate 40.

[0038] In one embodiment, the end of the clamping plate 212 along the length direction is bent to form a guiding inclined surface 2121, and a pressing column 2122 is provided on the opposite surface of the two clamping plates 212. The pressing column 2122 presses against both sides of the grounding plate 40 when the grounding plate 40 is inserted into the clamping opening 213, improving the stability of the grounding connection. In addition, the grounding clip is not arranged beyond the inner side of the vehicle frame cross beam to prevent affecting the entry of the trolley into the switch cabinet.

[0039] The above description is only a preferred embodiment of the present utility model and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present utility model is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above utility model concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions in the present utility model.

[0040] Although the subject matter has been described in language specific to structural features and / or methodological logical acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. On the contrary, the specific features and acts described above are merely example forms for implementing the claims.

Claims

1. A trolley frame, suitable for use in a longitudinally rotating isolating vacuum circuit breaker, to achieve pluggable connection between the three-phase poles and the operating mechanism of the isolating vacuum circuit breaker and the cabinet, wherein: The three-phase poles are connected to the operating mechanism through the longitudinal beam, and are characterized in that the handcart frame includes a frame crossbeam, a pole bracket, an operating mechanism fixing frame and a grounding plate. The pole bracket is erected at one end of the frame crossbeam and is used to be connected to one end of the longitudinal beam. The operating mechanism fixing frame is arranged at the other end of the frame crossbeam and is used to fix the operating mechanism. The grounding plate is installed on the frame crossbeam and is located between the pole bracket and the operating mechanism fixing frame. It is used to be inserted into the grounding clamp on the cabinet to complete the grounding connection when the handcart frame is extended into the cabinet.

2. The handcart frame according to claim 1, characterized in that: The frame crossbeam includes two crossbeam square tubes arranged side by side, the grounding plate is installed on one of the crossbeam square tubes, the pole bracket includes a pair of columns fixed in one-to-one correspondence with the two crossbeam square tubes and a cross bar spanning the pair of columns, and the cross bar is provided with a pin shaft hole for passing a pin shaft to connect with the longitudinal beam.

3. The handcart frame according to claim 2, characterized in that: The upright columns are fixed to the two cross beam square tubes from the sides of the two cross beam square tubes facing each other.

4. The handcart frame according to claim 2, characterized in that: A roller is arranged at the bottom end of the frame cross beam, and the roller is embedded in the cross beam square tube and partially extends out from the bottom end of the cross beam square tube.

5. The handcart frame according to claim 4, characterized in that: The rollers are evenly distributed in a plurality of groups along the length direction of the frame cross beam, and each group of rollers includes two rollers which are connected to the two cross beam square tubes in a one-to-one correspondence.

6. The handcart frame according to claim 1, characterized in that: The control mechanism fixing frame comprises a pair of fixing rods erected on the frame crossbeam, and the fixing rods are provided with fixing holes for fixing the control mechanism.

7. The handcart frame according to claim 1, characterized in that: The grounding plate includes an integrally formed vertical end and a transverse end, the vertical end is used to be inserted into the grounding clamp, the transverse end is provided with a plurality of mounting holes along the length direction, and the frame crossbeam is provided with screw holes corresponding to the mounting holes, for mounting the grounding plate on the frame crossbeam with the aid of screws.

8. A longitudinal rotation isolating vacuum circuit breaker, comprising a three-phase pole, an operating mechanism and a trolley frame, wherein the three-phase pole and the operating mechanism are mounted on the trolley frame, and the trolley frame is pluggably connected to the cabinet, characterized in that: The trolley frame is the trolley frame according to any one of claims 1 to 7, and the grounding clamp is provided on the cabinet.

9. The longitudinal rotation isolating vacuum circuit breaker according to claim 8, characterized in that: The grounding clamp includes a straight-line mounting plate and a pair of clamping plates. The straight-line mounting plate is used to be installed on a cabinet. The pair of clamping plates are connected to the straight-line mounting plate from both sides of the straight-line mounting plate to form a clamping opening for clamping the grounding plate. The clamping plates do not extend beyond the inner side of the frame crossbeam.

10. The longitudinal rotation isolating vacuum circuit breaker according to claim 9, characterized in that: The ends of the clamping plates along the length direction are bent to form guiding inclined surfaces. The opposite sides of the two clamping plates are provided with tightening columns, which are pressed against the two sides of the grounding plate when the grounding plate is inserted into the clamping opening.

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