10 / 35 kV cabinet door limiter

Abstract

The utility model discloses a 10 / 35kV cabinet door limiter, which comprises an inner base and an outer base which are both in a U-shaped structure, the inner base can be accommodated in the outer base, and one end of the inner base is movably connected by installing rivets on two sides of the U-shaped structure; a Tai Chi fish arc-shaped sliding groove is formed in the position, above the rivet, of the outer base. A pressing type locking connecting rod capable of rotating and moving to play a limiting role is installed in the Tai Chi fish arc-shaped sliding groove. An open hole is formed in the central axis position of the middle base part of the outer base of the U-shaped structure, and a strong magnetic attraction gasket used for adsorbing the limiting stopper on a cabinet door is mounted in the open hole through a cross grub screw penetrating from the back surface of the outer base. The device can be flexibly placed, can limit the size of the opening of the switch cabinet door, effectively helps an operator to touch electrified equipment by mistake, and improves the safety of field operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric cabinets, and in particular relates to a 10 / 35kV cabinet door limiter. Background Art

[0002] At present, the cabinet doors on 10kV / 35kV switch cabinets are naturally opened without limit devices, so the operation and maintenance staff need special personnel to help fix the cabinet doors when working at the wiring terminals in the cabinet. Otherwise, due to the installation of protection and measurement and control devices and other equipment, the equipment wiring will form a fixed shape when the cabinet doors are closed for a long time, which will generate inherent pulling force and cause the cabinet doors to automatically return to the closing direction. It is easy for the operation and maintenance personnel to accidentally touch the live equipment on the back of the cabinet door when working in the counter, which not only affects the normal work of the operation and maintenance personnel, but also easily causes unsafe incidents such as accidental touching of live equipment, malfunction of protection, and wire falling off. Utility Model Content

[0003] The purpose of the utility model is to provide a 10 / 35kV cabinet door limiter, which can be flexibly placed and can limit the opening size of the switch cabinet door, effectively helping operators to accidentally touch live equipment and improving the safety of on-site operations.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a 10 / 35kV cabinet door limiter, including an inner base and an outer base both of which are U-shaped structures. The inner base can be accommodated in the outer base and a gap is reserved between the two sides of the inner base and the outer base. One end of the inner base and the outer base are movably connected by installing rivets on both sides of the U-shaped structure; a Taiji fish arc-shaped slide groove is provided on the outer base above the position where the rivet is located, and a push-type locking link that can be rotatably moved and has a limiting effect is installed in the Taiji fish arc-shaped slide groove. Rod, one end of the push-type locking rod is exposed on the outside of the outer base, and the other end passes through the Taijiyu arc-shaped slide groove and one side of the U-shaped structure of the inner base, and is fixed on the inner side of the other side of the U-shaped structure of the inner base; an opening is opened at the central axis position of the middle base part of the outer base of the U-shaped structure, and a strong magnetic attraction washer for adsorbing the limiter on the cabinet door is installed in the opening through a cross flat head screw inserted from the back of the outer base. After installation, the screw surface and the washer surface are in the same horizontal plane.

[0005] Furthermore, the push-type locking link is composed of an integrally formed long connecting rod, a locking head, a round-headed shaft, a limit card, a spring and a hollow round-headed shaft for providing support force to the spring. The end of the long connecting rod exposed on the outside of the outer base is provided with a locking head for providing a pressing position, and the other end passes through the Taiji fish arc-shaped slide groove and one side of the U-shaped structure of the inner base, and is fixed to the inner side of the other side of the U-shaped structure of the inner base; the outer periphery of the long connecting rod part located in the inner base is sleeved with a spring, one end of the spring is fixed to the inner side of the inner base, and the other end is fixed in the hollow round-headed shaft arranged above the spring, a limit card for limiting the movement range of the spring is arranged above the hollow round-headed shaft, and a round-headed shaft for inserting into the end hole of the Taiji fish arc-shaped slide groove to play a limiting role is arranged between the limit card and the locking head.

[0006] Furthermore, the maximum angle at which the push-type locking link moves in the Taiji fish arc-shaped slide groove is 90°.

[0007] Furthermore, a plurality of circular limiting holes for increasing limiting points are provided on the Taiji Fish arc-shaped slideway.

[0008] Furthermore, the back sides of the middle base parts of the inner base and the outer base are respectively installed with 1# insulating pad and 2# insulating pad for isolation and insulation, and the side of the insulating pad in contact with the inner and outer bases is a self-adhesive layer.

[0009] Furthermore, the middle base between the inner base and the outer base is provided with a plurality of openings for increasing the adhesion between the 1# insulating pad and the 2# insulating pad and the inner base and the outer base respectively, and a U-shaped groove is provided at the edge of the middle base of the inner base and the outer base respectively.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model can close or open the limit switch by moving the push-type locking link in the Taiji fish arc-shaped slide groove. When the limit switch is in the open state, the outer base is adsorbed on the switch cabinet door by the strong magnetic attraction gasket, and the unfolded inner base is supported on the cabinet body to achieve the limiting effect of the limit switch. The use of the limit switch reduces the number of people holding the cabinet door, effectively prevents operators from accidentally touching live equipment, and effectively improves the safety of on-site operations.

[0012] Furthermore, the utility model presses the locking head to allow the round head shaft to pass through the end of the Taiji fish arc-shaped slide groove, and then presses the inner and outer bases by hand to cause the limiter to tend to close. At this time, the push-type locking link moves along the Taiji fish arc-shaped slide groove, and finally moves to the other end of the Taiji fish arc-shaped slide groove to realize the closure of the limiter. The closed limiter can be put into a tool box or a work clothes pocket for easy storage.

[0013] Furthermore, insulating pads for isolation and insulation are respectively installed on the backs of the middle base parts of the inner base and the outer base of the utility model, so that the limiter does not wear the switch cabinet during use and plays the necessary anti-slip function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a left view of the utility model in the open state;

[0015] Figure 2 This is the main view of the utility model in the open state;

[0016] Figure 3 for Figure 2 A partial enlarged view of the middle push-type locking link;

[0017] Figure 4 It is a left side view of the utility model in a closed state;

[0018] Figure 5 It is a schematic diagram of the structure of the utility model;

[0019] Figure 6 It is a top view of the utility model;

[0020] In the figure: 1-inner base; 2-outer base; 3-rivet; 4-Taiji fish arc-shaped slide; 5-push-type locking rod; 51-long connecting rod; 52-locking head; 53-round head shaft; 54-limiting card; 55-spring; 56-hollow round head shaft; 6-cross flat head screw; 7-1# insulation pad; 8-2# insulation pad; 9-strong magnetic attraction washer; 10-opening; 11-U-shaped groove. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 , 2As shown, a 10 / 35kV cabinet door limiter described in this embodiment includes an inner base 1 and an outer base 2 both of which are U-shaped structures. The inner and outer bases are made of galvanized stainless steel, which has good corrosion resistance and can extend the service life. The higher strength and rigidity can provide good structural stability and bearing capacity. The size of the inner base 1 is 56mm*36mm, and the size of the outer base 2 is 65mm*45mm. The inner base 1 can be accommodated in the outer base 2 and a gap is retained between the two sides of the inner base 1 and the outer base 2; one end of the inner base 1 and the outer base 2 are movably connected by installing rivets 3 on both sides of the U-shaped structure, and a Taiji fish arc-shaped slide groove 4 is opened on the outer base 2 above the position of the rivet 3. A push-type locking connecting rod 5 that can be rotatably moved and has a limiting effect is installed in the Taiji fish arc-shaped slide groove 4, and the maximum angle of movement is 90°. One end of the push-type locking connecting rod 5 is exposed on the outside of the outer base 2, and the other end passes through the Taiji fish arc-shaped slide groove 4 and one side of the U-shaped structure of the inner base 1, and is fixed on the inner side of the other side of the U-shaped structure of the inner base 1; the push-type locking connecting rod 5 moves in the Taiji fish arc-shaped slide groove 4 to make the limiter reach closure or limit opening of 90°. In addition, by opening a plurality of circular limit holes on the Taiji fish arc-shaped slide groove 4 of the limiter, a plurality of limit points can be added, so that the limiter can be opened at different angles to adapt to different needs and application scenarios.

[0023] like Figure 3 As shown, the push-type locking link 5 is composed of an integrally formed long link 51, a locking head 52, a round head shaft 53, a limit card 54, a spring 55 and a hollow round head shaft 56 for providing support force to the spring 55. The end of the long link 51 exposed outside the outer base 2 is provided with a locking head 52 for providing a pressing position. The locking head 52 adopts a flat round surface with a diameter of 12 mm, which can reduce the pressure of the finger pressing; the other end of the long link 51 passes through the Taiji fish arc-shaped slide groove 4 and one side of the U-shaped structure of the inner base 1, and is fixed to the inner side of the other side of the U-shaped structure of the inner base 1. A spring 55 is sleeved on the outer periphery of the long connecting rod 51 in the inner base 1. One end of the spring 55 is fixed on the inner side of the inner base 1, and the other end is fixed in the hollow round head shaft 56 arranged above the spring 55. When the push-type locking connecting rod 5 is pressed, the spring 55 can be retracted into the hollow round head shaft 56 to provide support force; a limit card 54 is arranged above the hollow round head shaft 56, so that when the limiter is in the open state, the limit card 54 stays on the inner side of the inner base 1 to limit the range of motion of the spring 55 to prevent accidents or equipment damage caused by exceeding the limit range. A round head shaft 53 is arranged between the limit card 54 and the locking head 52 to play a limiting role in the end hole of the Taiji fish arc-shaped slide 4. When the limiter is in the open state, the round head shaft 53 passes through the end hole of the Taiji fish arc-shaped slide 4 and is stuck on the outside of the Taiji fish arc-shaped slide 4, so that the limiter reaches the open position of the limit 90°.

[0024] When the limiter needs to be closed, the locking head 52 is pressed to allow the round head shaft 53 to pass through the end of the arc-shaped slide groove 4, and then the inner and outer bases are pressed by hand to make the limiter close. The round head shaft 53 moves in the gap between the inner base 1 and the outer base 2. At this time, the push-type locking connecting rod 5 moves along the arc-shaped slide groove 4 and finally moves to the other end of the arc-shaped slide groove 4 to realize the closure of the limiter. The closed limiter is as shown in FIG. Figure 4 As shown, it can be put into a toolbox or a work clothes pocket for easy storage; and after closing, the inner base 1 is contained in the outer base 2 to form a cavity. When the limiter needs to be opened, the operator can insert his fingers into the cavity and apply force outward, and the push-type locking link 5 moves in the opposite direction of the Taiji fish arc-shaped slide groove 4, and finally the round head shaft 53 passes through the end hole of the Taiji fish arc-shaped slide groove 4 and is exposed on the outside of the outer base 2, so that the limiter reaches the open position of the limit 90°.

[0025] like Figure 5 , 6 As shown, a Φ5mm opening is opened at the central axis position of the middle base part of the U-shaped structure outer base 2, and a strong magnetic attraction washer 9 is installed in the opening through a Φ5*16mm cross flat head screw 6 inserted from the back of the outer base 2. The outer diameter of the strong magnetic attraction washer 9 is 28mm and the thickness is 2mm. The inner aperture is provided with a groove hole with a diameter of 5mm, so that the cross flat head screw 6 passes through the strong magnetic attraction washer 9 and the outer base 2 is fixed to the outer base 2 through a nut, and after installation, the screw surface and the washer surface can be in the same horizontal plane, and the strong magnetic attraction force allows the limiter to firmly absorb the cabinet without wearing the cabinet, and can reliably prevent the limiter from sliding. Considering that the limiter should not wear the switch cabinet and has the necessary anti-slip function, the back of the middle base part of the inner base 1 and the outer base 2 are respectively installed with 1# insulation pad 7 and 2# insulation pad 8. The insulation pad is made of solid rubber material, wherein the size of 1# insulation pad 7 is 50mm*34mm*3mm, the size of 2# insulation pad 8 is 65mm*44mm*3mm, and a Φ30mm round hole is opened at the installation position of the strong magnetic attraction gasket 9, and the round hole embeds the strong magnetic attraction gasket 9 on the 2# insulation pad 8. The side of the insulation pad that contacts the inner and outer bases is a self-adhesive layer, which can fix the insulation pad on the inner and outer bases to ensure that the insulation pad will not fall off or move during use, and can ensure the isolation and insulation effect between the inner and outer bases and the electric cabinet door. The self-adhesive layer can provide a convenient installation method, reducing the need to use additional fixing materials (such as glue or adhesive). The inner base 1 and the outer base 2 are provided with a plurality of openings 10 and U-shaped grooves 11 respectively provided at the edges of the inner base 1 and the outer base 2 to increase the adhesion and anti-slip ability of the insulating pad and the inner and outer bases.

[0026] Working principle: When using a 10 / 35kV cabinet door limiter, the operator can insert his finger into the cavity formed by the inner and outer bases and apply force outward, and the push-type locking link 5 rotates and moves along the Taiji fish arc-shaped slide 4. When it moves to the end of the Taiji fish arc-shaped slide 4, the round head shaft 53 passes through the end hole of the Taiji fish arc-shaped slide 4 and is exposed on the outside of the outer base 2, so that the limiter reaches the open position of the limit 90°. The operator adsorbs the outer base 2 on the cabinet door through the strong magnetic attraction washer 9 The unfolded inner base 1 is supported on the cabinet body, so that the cabinet door reaches the open position of 90°, which effectively prevents operators from accidentally touching live equipment and makes on-site operations safer; when the operation is completed, the limiter is removed from the cabinet door and the cabinet door is closed, and the round head shaft 53 is inserted from the end of the Taiji fish arc-shaped slide groove 4 by pressing the locking head 52, and then the inner and outer bases are pressed by hand to close the limiter, and the closed limiter is placed in a tool box or in a work clothes pocket for continued use at the next operation point.

Claims

1. A 10 / 35kV cabinet door stopper, characterized in that: The invention comprises an inner base (1) and an outer base (2) both of which are U-shaped structures. The inner base (1) can be accommodated in the outer base (2) and a gap is retained between the two sides of the inner base (1) and the outer base (2). One end of the inner base (1) and the outer base (2) are movably connected by installing rivets (3) on both sides of the U-shaped structure. A Taiji fish arc-shaped slide groove (4) is provided on the outer base (2) above the position where the rivet (3) is located, and a push-type locking link (5) that can be rotated and moved to play a limiting role is installed in the Taiji fish arc-shaped slide groove (4), one end of the push-type locking link (5) is exposed on the outside of the outer base (2), and the other end passes through the Taiji fish arc-shaped slide groove (4) and one side of the U-shaped structure of the inner base (1), and is fixed on the inner side of the other side of the U-shaped structure of the inner base (1); An opening is provided at the central axis position of the middle base portion of the U-shaped structure outer base (2), and a strong magnetic attraction washer (9) for adsorbing the limiter on the cabinet door is installed in the opening through a cross flat head screw (6) inserted from the back of the outer base (2), and after installation, the screw surface and the washer surface are in the same horizontal plane.

2. A 10 / 35kV cabinet door limiter according to claim 1, characterized in that: The push-type locking connecting rod (5) is composed of an integrally formed long connecting rod (51), a locking head (52), a round head shaft (53), a limit clamp (54), a spring (55), and a hollow round head shaft (56) for providing a supporting force for the spring (55). One end of the long connecting rod (51) exposed outside the outer base (2) is provided with a locking head (52) for providing a pressing position, and the other end passes through the Taiji fish arc-shaped slide groove (4) and one side of the U-shaped structure of the inner base (1), and is fixed to the inner side of the U-shaped structure of the inner base (1). side; a spring (55) is sleeved on the outer periphery of the long connecting rod (51) in the inner base (1); one end of the spring (55) is fixed to the inner side of the inner base (1), and the other end is fixed to a hollow round head shaft (56) arranged above the spring (55); a limit card (54) for limiting the movement range of the spring (55) is arranged above the hollow round head shaft (56); a round head shaft (53) for clamping into the end hole of the Taiji fish arc-shaped slide groove (4) for limiting is arranged between the limit card (54) and the locking head (52).

3. A 10 / 35kV cabinet door limiter according to claim 1, characterized in that: The maximum angle at which the push-type locking connecting rod (5) moves in the Taiji fish arc-shaped sliding groove (4) is 90°.

4. A 10 / 35kV cabinet door limiter according to claim 1, characterized in that: The Taiji fish arc-shaped slide groove (4) is provided with a plurality of circular limiting holes for increasing the limiting points.

5. A 10 / 35kV cabinet door limiter according to claim 1, characterized in that: The back sides of the middle base parts of the inner base (1) and the outer base (2) are respectively provided with a 1# insulating pad (7) and a 2# insulating pad (8) for isolation and insulation, and the side of the insulating pad in contact with the inner and outer bases is a self-adhesive layer.

6. A 10 / 35kV cabinet door limiter according to claim 5, characterized in that: The middle base between the inner base (1) and the outer base (2) is also provided with a plurality of openings (10) for increasing the adhesive force between the 1# insulating pad (7) and the 2# insulating pad (8) and the inner base (1) and the outer base (2), respectively, and U-shaped grooves (11) are respectively provided at the edges of the middle bases of the inner base (1) and the outer base (2).

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