Through-wall sealing sleeve

Abstract

The utility model discloses a through-wall sealing sleeve. The through-wall sealing sleeve comprises a sleeve; the sealing component comprises a connecting ring arranged on the sleeve, two first cavities are formed in the connecting ring, a moving ring is arranged in each first cavity in a sliding mode, a sealing ring is further arranged on each moving ring, and an elastic unit is further arranged between each moving ring and the corresponding first cavity; according to the utility model, through cooperation between the sleeve and the sealing component, after the sleeve is arranged between the side walls of two adjacent electric cabinets, each elastic unit drives the corresponding moving ring to move towards the corresponding electric cabinet until the sealing ring on each moving ring abuts against the corresponding electric cabinet; each elastic unit continuously applies thrust towards the direction of the corresponding electric cabinet to the corresponding sealing ring through the corresponding moving ring, so that when a gap occurs at the joint due to the problems of stress relaxation and the like of the bolt, the sealing ring can be tightly attached to the side wall of the corresponding electric cabinet again to fill the gap, and the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of insulation technology, and in particular to a through-wall sealing sleeve. Background Technology

[0002] Through-wall bushings are one of the most widely used components in electrical engineering. In power supply systems, they are often used between two adjacent combined electrical cabinets to provide transition connection and insulation isolation for the busbars when the busbars in one cabinet are run through to the adjacent cabinet.

[0003] In the actual installation process of bushings, pre-drilled holes are usually made in the electrical cabinets, the through-wall bushings are installed in the holes, and the bushings are connected to two adjacent electrical cabinets with bolts and sealed with gaskets. However, after long-term use, gaps may appear at the connection between the bushing and the electrical cabinet due to gasket aging and bolt stress relaxation, resulting in limited sealing effect and affecting the operation of the busbar. Therefore, this application proposes a through-wall sealing bushing that can improve the sealing effect. Utility Model Content

[0004] The main purpose of this utility model is to provide a through-wall sealing sleeve that can improve the sealing effect.

[0005] To achieve the above objectives, this utility model provides a through-wall sealing sleeve, comprising:

[0006] A sleeve is installed between the side walls of two adjacent electrical cabinets, and both ends of the sleeve extend into the corresponding electrical cabinet.

[0007] The sealing component includes a connecting ring disposed on the sleeve, the connecting ring being located between the side walls of two electrical cabinets, and two annular first chambers being formed on both sides of the corresponding electrical cabinet. Each first chamber has a sliding moving ring slidably disposed therein, each moving ring being slidably disposed along the length of the sleeve within the corresponding first chamber, and the two moving rings being disposed opposite each other. A sealing ring is also provided on the opposite side of each moving ring, the sealing ring being used to seal the connection between the sleeve and the side wall of the electrical cabinet. An elastic unit is also provided between each moving ring and the corresponding first chamber, the elastic unit being used to apply a thrust to the corresponding moving ring toward the direction of the corresponding electrical cabinet.

[0008] Furthermore, it also includes a transmission component and an adjustment component. There are two transmission components, which are respectively connected to the moving rings on both sides of the connecting ring. One end of the transmission component extends into the sleeve and is connected to the adjustment component. The adjustment component is used to drive the two transmission components to move closer to each other.

[0009] Furthermore, the sleeve has two second chambers, and each second chamber is connected to the corresponding first chamber;

[0010] The transmission component includes a first abutting block slidably disposed in each of the second chambers along the length of the sleeve. Two first abutting blocks are disposed opposite each other, and one end of each first abutting block extends into the first chamber and is connected to the corresponding moving ring. The other end of each first abutting block is detachably connected to the adjustment component. When the adjustment component is connected to each of the first abutting blocks, the first abutting block drives the corresponding moving ring to move in the direction of the other moving ring.

[0011] Furthermore, each of the first abutting blocks has an inclined surface, and the inclined surfaces on the two first abutting blocks are arranged opposite to each other;

[0012] The adjusting component includes a transmission rod rotatably disposed in the sleeve. One end of the transmission rod passes through each of the second chambers. Each of the second chambers is also provided with a second abutment block. Each of the second abutment blocks is disposed on the transmission rod. When the transmission rod rotates, the transmission rod drives each of the second abutment blocks to rotate together and causes each of the second abutment blocks to contact the inclined surface of the corresponding first abutment block, thereby pushing the first abutment block to drive the corresponding moving ring to move in the direction of the other moving ring.

[0013] Furthermore, the sleeve is provided with a pin hole, and the transmission rod is also provided with a through hole. When each of the second abutment blocks presses upward against the corresponding first abutment block, the through hole on the transmission rod is coaxial with the pin hole. The sleeve is also provided with a pin. When the through hole is coaxial with the pin hole, the pin is passed through the through hole and inserted into the pin hole, thereby preventing the transmission rod from rotating accidentally.

[0014] Furthermore, the bushing is equipped with a monitoring component, which includes a temperature sensor installed in the bushing and connected to the control console for signal detection. The temperature sensor is used to detect the temperature of the busbar during operation. The bushing also includes a partial discharge current sensor installed in the bushing and connected to the control console for signal detection. The partial discharge current sensor is used to detect the discharge phenomenon of the busbar during operation.

[0015] The beneficial effects of this utility model are reflected in:

[0016] In this invention, the sleeve and sealing components work together such that when the sleeve is placed between the side walls of two adjacent electrical cabinets, each elastic unit drives the corresponding moving ring to move towards the corresponding electrical cabinet until the sealing ring on each moving ring abuts against the corresponding electrical cabinet. As each elastic unit continuously applies a thrust towards the corresponding electrical cabinet to the corresponding sealing ring through the corresponding moving ring, when gaps appear at the connection due to problems such as stress relaxation of the bolts, each sealing ring can once again press tightly against the side wall of the corresponding electrical cabinet to fill the gap, thereby improving the sealing effect. Attached Figure Description

[0017] Figure 1 This is a perspective view of the through-wall sealing sleeve described in this utility model;

[0018] Figure 2 This is a cross-sectional view of the through-wall sealing sleeve described in this utility model;

[0019] Figure 3 yes Figure 2 View at point A in the middle;

[0020] Figure 4 This is a structural view of the transmission components;

[0021] Figure 5 yes Figure 4 The view at point B in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Sleeve; 11. Second chamber; 12. Pin hole; 2. Sealing component; 21. Connecting ring; 211. First chamber; 22. Moving ring; 23. Sealing ring; 24. Elastic unit; 3. Transmission component; 31. First abutment block; 311. Inclined surface; 4. Adjustment component; 41. Transmission rod; 411. Through hole; 42. Second abutment block; 5. Pin; 6. Monitoring component; 61. Temperature sensor; 62. Partial discharge current sensor. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0025] See Figures 1-5 .

[0026] This utility model discloses a through-wall sealing sleeve, comprising:

[0027] Sleeve 1 is installed between the side walls of two adjacent electrical cabinets, and both ends of sleeve 1 extend into the corresponding electrical cabinet.

[0028] The sealing component 2 includes a connecting ring 21 disposed on the sleeve 1. The connecting ring 21 is located between the side walls of the two electrical cabinets, and the connecting ring 21 has two annular first chambers 211 on both sides of the corresponding electrical cabinet. Each first chamber 211 is slidably provided with a movable ring 22. Each movable ring 22 is slidably disposed in the corresponding first chamber 211 along the length direction of the sleeve 1, and the two movable rings 22 are arranged opposite to each other. The side of each movable ring 22 that is away from each other is also provided with a sealing ring 23. The sealing ring 23 is used to seal the connection between the sleeve 1 and the side wall of the electrical cabinet. An elastic unit 24 is also provided between each movable ring 22 and the corresponding first chamber 211. The elastic unit 24 applies a thrust to the corresponding movable ring 22 to move towards the corresponding electrical cabinet.

[0029] In specific implementation, after the sleeve 1 is installed between the side walls of two adjacent electrical cabinets, the elastic unit 24 applies a thrust to the corresponding moving ring 22 in the direction of the corresponding electrical cabinet, so that the two moving rings 22 move away from each other until the sealing ring 23 on each moving ring 22 abuts against the side wall of the corresponding electrical cabinet, and the sealing ring 23 is tightly attached to the side wall of the corresponding electrical cabinet to complete the seal. When the bolts experience stress relaxation, the elastic unit 24 continues to apply a thrust to the corresponding moving ring 22, so that the sealing ring 23 is tightly attached to the side wall of the corresponding electrical cabinet again to fill the gap.

[0030] In this invention, through the cooperation between the sleeve 1 and the sealing component 2, when the sleeve 1 is placed between the side walls of two adjacent electrical cabinets, each elastic unit drives the corresponding moving ring 22 to move towards the corresponding electrical cabinet until the sealing ring 23 on each moving ring 22 abuts against the corresponding electrical cabinet. As each elastic unit 24 continuously applies a pushing force towards the corresponding sealing ring 23 through the corresponding moving ring 22, when gaps appear at the connection due to problems such as stress relaxation of the bolts, each sealing ring 23 can once again tightly adhere to the side wall of the corresponding electrical cabinet, filling the gaps and thus improving the sealing effect.

[0031] It should be noted that the sleeve 1 is common knowledge to those skilled in the art, so its structure and function will not be described in detail here.

[0032] In one embodiment, the system further includes a transmission component 3 and an adjustment component 4. There are two transmission components 3, which are respectively connected to the moving rings 22 on both sides of the connecting ring 21. One end of the transmission component 3 extends into the sleeve 1 and is connected to the adjustment component 4. The adjustment component 4 is used to drive the two transmission components 3 to move closer to each other, thereby bringing the two moving rings 22 closer to each other.

[0033] In one embodiment, the sleeve 1 has two second chambers 11, and each second chamber 11 is connected to a corresponding first chamber 211;

[0034] The transmission component 3 includes a first abutting block 31 that is slidably disposed in each of the second chambers 11 along the length of the sleeve 1. The two first abutting blocks 31 are disposed opposite to each other, and one end of each first abutting block 31 extends into the first chamber 211 and is connected to the corresponding moving ring 22. The other end of each first abutting block 31 is detachably connected to the adjusting component 4. When the adjusting component 4 is connected to each first abutting block 31, the first abutting block 31 drives the corresponding moving ring 22 to move in the direction of the other moving ring 22.

[0035] With this design, when installing the sleeve 1, the adjusting component 4 is first connected to each of the first abutting blocks 31, so that each of the first abutting blocks 31 drives the corresponding moving ring 22 to move, so that the two moving rings 22 move closer to each other. At this time, each moving ring 22 retracts into the corresponding first chamber 211, and the elastic unit 24 is compressed. After the sleeve 1 is installed, the adjusting component 4 is separated from each of the first abutting blocks 31. At this time, each elastic unit 24 loses its constraint and drives the corresponding moving ring 22 to extend out of the first chamber 211, and the sealing ring 23 abuts against the corresponding side wall of the electrical cabinet.

[0036] In one embodiment, each first abutment block 31 is provided with a slope 311, and the slopes 311 on the two first abutment blocks 31 are arranged opposite to each other;

[0037] The adjusting component 4 includes a transmission rod 41 rotatably disposed in the sleeve 1. One end of the transmission rod 41 passes through each of the second chambers 11. Each of the second chambers 11 is also provided with a second abutment block 42. Each of the second abutment blocks 42 is disposed on the transmission rod 41. When the transmission rod 41 rotates, the transmission rod 41 drives each of the second abutment blocks 42 to rotate together and make each of the second abutment blocks 42 contact the inclined surface 311 of the corresponding first abutment block 31, pushing the first abutment block 31 to drive the corresponding moving ring 22 to move in the direction of the other moving ring 22.

[0038] With this design, during the installation of sleeve 1, rotating the transmission rod 41 causes each second abutment block 42 to rotate upwards, making each second abutment block 42 abut against the inclined surface 311 of the corresponding first abutment block 31. As the transmission rod 41 continues to rotate, each second abutment block 42 presses upwards against the inclined surface 311 of the corresponding first abutment block 31, thereby bringing the two first abutment blocks 31 closer together. This, in turn, causes the corresponding moving ring 22 to retract into the corresponding first chamber 211 through each first abutment block 31. Each elastic unit... At this time, the sleeve 1 is compressed. After the sleeve 1 is installed, the transmission rod 41 is rotated again to make each second abutment block 42 rotate downward until each second abutment block 42 separates from the corresponding first abutment block 31. At this time, each elastic unit 24 drives the corresponding moving ring 22 to extend out of the corresponding first chamber 211. When it is necessary to remove the sleeve 1, the transmission rod 41 is rotated again and each second abutment block 42 drives each moving ring 22 to retract into the first chamber 211, so that each sealing ring 23 can be separated from the corresponding side wall of the electrical cabinet. The disassembly and assembly are convenient.

[0039] It should be noted that the end of the transmission rod 41 away from the sealing component 2 may have a hexagonal screw hole. Since there are other components around the sleeve 1 after installation, the working space is limited. At this time, the transmission rod 41 can be rotated by a hexagonal wrench to facilitate the work of the staff.

[0040] In one embodiment, the sleeve 1 is provided with a pin hole 12, and the transmission rod 41 is also provided with a through hole 411. When each of the second abutment blocks 42 presses upward against the corresponding first abutment block 31, the through hole 411 on the transmission rod 41 is coaxial with the pin hole 12. The sleeve 1 is also provided with a pin 5. When the through hole 411 is coaxial with the pin hole 12, the pin 5 is passed through the through hole 411 and inserted into the pin hole 12, thereby preventing the transmission rod 41 from rotating accidentally.

[0041] With this design, when each of the second abutment blocks 42 rotates upward and presses against the corresponding first abutment block 31, causing each of the moving rings 22 to retract into the corresponding first chamber 211, the through hole 411 and the pin hole 12 are coaxial. Then, the pin 5 is passed through the through hole 411 and inserted into the corresponding pin hole 12. At this time, the pin 5 prevents the transmission rod 41 from rotating accidentally, thereby separating each of the second abutment blocks 42 from the corresponding first abutment block 31, thus preventing each of the moving rings 22 from accidentally extending out of the corresponding first chamber 211.

[0042] In one embodiment, the bushing 1 is provided with a monitoring component 6, which includes a temperature sensor 61 disposed in the bushing 1 and connected to a control console (not shown in the figure) for detecting the temperature of the busbar during operation. The monitoring component 6 also includes a partial discharge current sensor 62 disposed in the bushing 1 and connected to the control console for detecting the discharge phenomenon of the busbar during operation.

[0043] With this design, when the busbar is in operation, the presence of resistance generates heat as current flows through it. Temperature sensor 61 is used to detect the temperature generated by the busbar during operation. When the temperature of the busbar exceeds a predetermined value, temperature sensor 61 sends a signal to the control console to notify the staff to carry out maintenance. In addition, when the busbar is in operation, partial discharge current sensor 62 is used to detect the discharge phenomenon of the busbar. When a partial discharge abnormality occurs in the busbar, partial discharge current sensor 62 sends a signal to the control console to notify the staff to carry out maintenance, thereby eliminating insulation faults and preventing accidents.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, "multiple," "multiple groups," and "several" refer to two or more.

Claims

1. A through-wall sealing sleeve, characterized in that, include: A sleeve (1) is provided between the side walls of two adjacent electrical cabinets, and both ends of the sleeve (1) extend into the corresponding electrical cabinet; The sealing component (2) includes a connecting ring (21) disposed on the sleeve (1). The connecting ring (21) is located between the two side walls of the electrical cabinet, and the connecting ring (21) has two annular first chambers (211) on both sides of the corresponding electrical cabinet. Each first chamber (211) is slidably provided with a movable ring (22). Each movable ring (22) is slidably disposed in the corresponding first chamber (211) along the length direction of the sleeve (1), and the two movable rings (22) are arranged opposite to each other. Each movable ring (22) is also provided with a sealing ring (23) on the side facing away from each other. The sealing ring (23) is used to seal the connection between the sleeve (1) and the side wall of the electrical cabinet. Each movable ring (22) is also provided with an elastic unit (24) between it and the corresponding first chamber (211). The elastic unit (24) applies a thrust to the corresponding movable ring (22) to move towards the corresponding electrical cabinet.

2. The through-wall sealing sleeve according to claim 1, characterized in that, It also includes a transmission component (3) and an adjustment component (4). There are two transmission components (3), which are respectively connected to the moving rings (22) on both sides of the connecting ring (21). One end of the transmission component (3) extends into the sleeve (1) and is connected to the adjustment component (4). The adjustment component (4) is used to drive the two transmission components (3) to move closer to each other.

3. The through-wall sealing sleeve according to claim 2, characterized in that, The sleeve (1) has two second chambers (11) inside, and each second chamber (11) is connected to the corresponding first chamber (211); The transmission component (3) includes a first abutting block (31) slidably disposed in each of the second chambers (11) along the length direction of the sleeve (1). The two first abutting blocks (31) are disposed opposite to each other, and one end of each first abutting block (31) extends into the first chamber (211) and is connected to the corresponding moving ring (22). The other end of each first abutting block (31) is detachably connected to the adjusting component (4). When the adjusting component (4) is connected to each of the first abutting blocks (31), the first abutting block (31) drives the corresponding moving ring (22) to move in the direction of the other moving ring (22).

4. The through-wall sealing sleeve according to claim 3, characterized in that, Each of the first abutting blocks (31) has a ramp (311) and the ramps (311) on the two first abutting blocks (31) are arranged opposite to each other; The adjusting component (4) includes a transmission rod (41) rotatably disposed in the sleeve (1). One end of the transmission rod (41) passes through each of the second chambers (11). Each of the second chambers (11) is also provided with a second abutment block (42). Each of the second abutment blocks (42) is disposed on the transmission rod (41). When the transmission rod (41) rotates, the transmission rod (41) drives each of the second abutment blocks (42) to rotate together and makes each of the second abutment blocks (42) contact the inclined surface (311) of the corresponding first abutment block (31), pushing the first abutment block (31) to drive the corresponding moving ring (22) to move in the direction of the other moving ring (22).

5. The through-wall sealing sleeve according to claim 4, characterized in that, The sleeve (1) is provided with a pin hole (12), and the transmission rod (41) is also provided with a through hole (411). When each of the second abutment blocks (42) presses upward against the corresponding first abutment block (31), the through hole (411) on the transmission rod (41) is coaxial with the pin hole (12). The sleeve (1) is also provided with a pin (5). When the through hole (411) is coaxial with the pin hole (12), the pin (5) is passed through the through hole (411) and inserted into the pin hole (12), thereby preventing the transmission rod (41) from rotating accidentally.

6. The through-wall sealing sleeve according to claim 1, characterized in that, The bushing (1) is equipped with a monitoring component (6), which includes a temperature sensor (61) installed in the bushing (1), the temperature sensor (61) being connected to the control console for signal detection, and the temperature sensor (61) being used to detect the temperature of the busbar during operation. It also includes a partial discharge current sensor (62) installed in the bushing (1), the partial discharge current sensor (62) being connected to the control console for signal detection, and the partial discharge current sensor (62) being used to detect the discharge phenomenon of the busbar during operation.

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