Cable stuffing box sealing device

Abstract

The utility model discloses a cable stuffing box sealing device, which relates to the technical field of cable stuffing box design, and comprises a stuffing box main body, a cable fixing and sealing unit and an external connecting unit, the left side of the stuffing box main body is provided with a cable feeding hole, and the inside of the cable feeding hole is fixedly connected with a guide flexible pipe; a cable discharging hole is formed in the right side of the stuffing box body, an external connecting unit is arranged on the right side of the stuffing box body, four arc-shaped holes in an annular array are formed in the stuffing box body, and the cable fixing and sealing unit comprises a fixing circular ring, a cable fixing ring, an auxiliary cylinder, an adjusting sliding block and a fixing rectangular plate. A fixing circular ring is fixedly connected in the stuffing box body, the cable stuffing box is more convenient to disassemble and assemble, installation and use of the cable stuffing box are not affected, a cable can be fixed in the stuffing box, the cable is prevented from being damaged, and the service life of the cable is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cable stuffing box design technology, specifically a cable stuffing box sealing device. Background Technology

[0002] Cable stuffing boxes are used to secure cables to electrical control cabinets and are sealed with epoxy resin putty. They offer advantages such as simple structure, low cost, diverse forms, secure installation, ease of use, and good sealing performance. Depending on the application, cable stuffing boxes can be classified into welded, riveted, clamped, and tubular types, and can be manufactured from materials such as carbon steel, brass, stainless steel, or nylon. The cable diameter that can be fitted varies from 5 to 57 mm depending on the type of stuffing box. Stuffing boxes are widely used in shipbuilding, distribution cabinet manufacturing, locomotives and rolling stock, bridges, power, and telecommunications industries, among many others. To facilitate installation and use, a cable stuffing box sealing device is needed.

[0003] Existing cable stuffing box sealing devices are inconvenient to install and remove, which affects the installation and use of the cable stuffing box. The cable cannot be fixed inside the stuffing box, which can easily damage the cable and reduce its service life. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cable stuffing box sealing device that makes the cable stuffing box easier to disassemble and assemble without affecting its installation and use. The cable can be fixed inside the stuffing box to prevent damage to the cable and improve its service life. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable stuffing box sealing device, comprising a stuffing box body, a cable fixing and sealing unit, and an external connection unit;

[0006] The stuffing box body has a cable inlet on the left side, which is fixedly connected to a guide flexible tube. The stuffing box body has a cable outlet on the right side. An external connection unit is provided on the right side of the stuffing box body. The stuffing box body has four arc-shaped holes arranged in a ring.

[0007] The cable fixing and sealing unit comprises a fixing ring, a cable fixing ring, an auxiliary cylinder, an adjusting slider, and a fixing rectangular plate. A fixing ring is fixedly connected inside the stuffing box body. The fixing ring has four annularly arranged insertion holes. The fixing ring is located to the right of the arc-shaped holes. A cable fixing ring is fixedly fitted onto the cable. The diameter of the cable fixing ring is smaller than the diameter of the cable outlet hole on the stuffing box body. The end face of the cable fixing ring has four annularly arranged limiting grooves. Each limiting groove contains two rectangular grooves. Each rectangular groove contains an auxiliary cylinder. Each rectangular groove contains an adjusting slider. Each adjusting slider has a sliding hole that slides onto the corresponding auxiliary cylinder. Each limiting groove contains a fixing rectangular plate, which is fixedly connected to the corresponding adjusting slider. Each fixing rectangular plate has a snap-fit ​​hole.

[0008] The stuffing box body is used to fix the cable, the guide flexible tube is used to guide the cable through for filling and protection, the external connection unit is used to connect the device to the outside, the fixing ring is used to fix the cable fixing ring, the cable fixing ring is used to fix the cable, the auxiliary cylinder is used to make the movement of the adjusting slider more stable, the adjusting slider is used to adjust the position to drive the movement of the fixing rectangular plate, and the fixing rectangular plate is used to lock the fixing ring for fixed installation. This fixes and supports the cable, facilitating sealed installation.

[0009] Furthermore, the cable fixing and sealing unit also includes connecting pins and compression springs. Two fixing grooves are opened in the snap-fit ​​circular holes on each fixing rectangular plate. A supporting cylinder is fixedly connected in each fixing groove. A connecting slider is slidably connected in each fixing groove. A connecting pin is set in each snap-fit ​​circular hole. Each connecting pin is fixedly connected to the corresponding connecting slider. A compression spring is fixedly sleeved on each supporting cylinder. A snap-fit ​​notch is opened on each connecting pin.

[0010] The connecting pin is used to engage with the insertion hole on the fixing ring, so that the cable fixing ring is fixed on the stuffing box body. The compression spring is used to compress and move the connecting pin for insertion and fixing.

[0011] Furthermore, the cable fixing and sealing unit also includes a connecting rectangular plate. Each fixing rectangular plate has a rectangular fixing groove on the side surface near the compression spring. Each rectangular fixing groove has a sliding groove II. Each sliding groove II is fixedly connected to a supporting cylinder. Each sliding groove II is slidably connected to the connecting rectangular plate. The sliding holes on the connecting rectangular plate are slidably connected to the corresponding supporting cylinders. Each connecting rectangular plate is fixedly inserted into the snap-fit ​​notch on the connecting plug.

[0012] The connecting rectangular plate is used to insert the connecting pins, so that the connecting pins can be fixed on the fixed rectangular plate, thereby achieving a fixed connection.

[0013] Furthermore, the cable fixing and sealing unit also includes an external sealing cover, a sealing strip, and a connecting sealing ring. A connecting sealing ring is fixedly fitted onto the outer surface of the stuffing box body on the left and right sides of the arc-shaped hole. Two external sealing covers are provided on the outer side of the stuffing box body. The two external sealing covers adopt an arc-shaped structure. Two equally spaced sealing strips are fixedly connected inside the two external sealing covers. Each sealing strip is fixedly snapped onto the corresponding connecting sealing ring. The two external sealing covers are fixedly connected to the stuffing box body through the sealing strips. The two external sealing covers are connected to each other through the sealing strips. Sealing protrusions are provided in the two external sealing covers at the positions corresponding to the four arc-shaped holes. The four sealing protrusions are snapped into the corresponding arc-shaped holes. Circular protrusions are provided in one of the external sealing covers at the positions on the left and right sides of the sealing protrusion.

[0014] The external sealing cover is used to reinforce the seal on the outside of the stuffing box body. The sealing strip and the connecting sealing ring are snapped together to fix the external sealing cover to the stuffing box body for installation and use.

[0015] Furthermore, the external connection unit includes an external connection shell, fastening nuts, external connection threads, and packing holes. The stuffing box body has packing holes at positions corresponding to two circular protrusions, which are respectively fixedly engaged with their corresponding circular protrusions. The right side surface of the stuffing box body has an external connection thread. An external connection shell is located on the right side of the stuffing box body. The inner side of the external connection shell has an internal thread, which is threadedly connected to the external connection thread. The stuffing box body is connected to the external connection shell via the external connection thread. The outer surface of the external connection shell has an external thread, which is threadedly connected to two fastening nuts. The external connection shell is connected to the outside via the fastening nuts.

[0016] The outer connecting shell is used to fix the fastening nut, which is used to fix the device to the outside for assembly and disassembly. The outer connecting thread is used to connect the stuffing box body to the outer connecting shell for sealing installation. The stuffing hole is used to add sealing filler to improve sealing and facilitate use.

[0017] Furthermore, the external connection unit also includes a vacuum pump. The left side of the stuffing box body is fixedly connected to the vacuum pump via a support frame. The vacuum pipe on the vacuum pump extends into the stuffing box body. The input end of the vacuum pump is electrically connected to the output end of an external power supply via an external control switch group.

[0018] Vacuum pumps are used to create a vacuum inside the stuffing box to prevent air bubbles from forming in the filling sealing material, thereby increasing the sealing performance.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This cable stuffing box sealing device has the following advantages: It is equipped with a cable fixing sealing unit, which uses a fixing ring to fix the cable fixing ring, and the cable fixing ring to fix the cable. An auxiliary cylinder is used to make the movement of the adjusting slider more stable. The adjusting slider is used to adjust the position to drive the movement of the fixing rectangular plate. The fixing rectangular plate is used to engage with the fixing ring. The connecting pin is used to engage with the insertion hole on the fixing ring to fix the cable fixing ring to the stuffing box body. A compression spring is used to compress and facilitate the movement of the connecting pin for insertion. The connecting rectangular plate is used to engage with the connecting pin to fix the connecting pin to the fixing rectangular plate. An external sealing cover is used to reinforce the sealing of the outside of the stuffing box body. The sealing strip and the connecting sealing ring engage to fix the external sealing cover to the stuffing box body for sealing installation.

[0021] 2. This cable stuffing box sealing device has the following advantages: It is equipped with an external connection unit, through which an external connection shell is used to fix a fastening nut. The fastening nut is used to fix the device to the outside, thereby allowing for assembly and disassembly. The external connection thread is used to connect the stuffing box body to the external connection shell, thereby allowing for sealing installation. The stuffing hole is used to add sealing filler. The vacuum pump is used to evacuate the stuffing box body to prevent air bubbles from forming in the filling sealing material, thereby increasing the sealing performance. It is used for assembly and installation, and for processing and production.

[0022] 3. This cable stuffing box sealing device has the following advantages: the cable stuffing box is easier to disassemble and assemble without affecting its installation and use; the cable can be fixed inside the stuffing box to prevent damage and improve its service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0024] Figure 2 This is a front sectional view of the present invention.

[0025] Figure 3 This is a partial cross-sectional view of the cable fixing ring of this utility model;

[0026] Figure 4 This utility model Figure 3 A magnified view of the structure at point A in the middle;

[0027] Figure 5This is a schematic diagram of the front sectional view of the fixed rectangular plate of this utility model;

[0028] Figure 6 This is a schematic diagram of the connecting pin structure of this utility model;

[0029] Figure 7 This is a schematic diagram of the front structure of the external sealing cover of this utility model.

[0030] In the diagram: 1. Stuffing gland body; 2. Guide flexible tube; 3. Cable fixing sealing unit; 31. Fixing ring; 32. Cable fixing ring; 33. Auxiliary cylinder; 34. Adjusting slider; 35. Fixing rectangular plate; 36. Connecting post; 37. Compression spring; 38. Connecting rectangular plate; 39. External sealing cover; 310. Sealing strip; 311. Connecting sealing ring; 4. External connecting unit; 41. External connecting shell; 42. Fastening nut; 43. External connecting thread; 44. Packing hole; 45. Vacuum pump. Detailed Implementation

[0031] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-7 This embodiment provides a technical solution: a cable stuffing box sealing device, including a stuffing box body 1, a cable fixing and sealing unit 3, and an external connection unit 4;

[0033] The stuffing box body 1 has a cable inlet hole on the left side, which is fixedly connected to the guide flexible tube 2. The stuffing box body 1 has a cable outlet hole on the right side. An external connection unit 4 is provided on the right side of the stuffing box body 1. The stuffing box body 1 has four arc-shaped holes in a ring array.

[0034] Cable fixing and sealing unit 3: includes a fixing ring 31, a cable fixing ring 32, an auxiliary cylinder 33, an adjusting slider 34, and a fixing rectangular plate 35. A fixing ring 31 is fixedly connected inside the stuffing box body 1. The fixing ring 31 has four annular array insertion holes. The fixing ring 31 is located to the right of the arc-shaped holes. A cable fixing ring 32 is fixedly sleeved on the cable. The diameter of the cable fixing ring 32 is smaller than the diameter of the cable discharge hole on the stuffing box body 1. The end face of the cable fixing ring 32 has four annular array limiting grooves. Each limiting groove has two rectangular grooves. Each rectangular groove has an auxiliary cylinder 33 fixedly connected. Each rectangular groove has an adjusting slider 34 slidably connected. The sliding hole on each adjusting slider 34 is slidably connected to the corresponding auxiliary cylinder 33. Each limiting groove has a fixing rectangular plate 35. Each fixing rectangular plate 35 is fixedly connected to the corresponding adjusting slider 34. Each fixing rectangular plate 35 has a snap-fit ​​hole.

[0035] The stuffing box body 1 is used to fix the cable, the guide flexible tube 2 is used to guide the cable to pass through for filling and protection, the external connection unit 4 is used to connect the device to the outside, the fixing ring 31 is used to fix the cable fixing ring 32, the cable fixing ring 32 is used to fix the cable, the auxiliary cylinder 33 is used to make the movement of the adjusting slider 34 more stable, the adjusting slider 34 is used to adjust the position to drive the fixed rectangular plate 35 to move, the fixed rectangular plate 35 is used to snap the fixing ring 31 for fixed installation, thereby fixing and supporting the cable and facilitating sealed installation.

[0036] The cable fixing and sealing unit 3 also includes a connecting post 36 and a compression spring 37. Two fixing grooves are opened in the snap-fit ​​circular holes on each fixing rectangular plate 35. A supporting column is fixedly connected in each fixing groove. A connecting slider is slidably connected in each fixing groove. A connecting post 36 is set in each snap-fit ​​circular hole. Each connecting post 36 is fixedly connected to the corresponding connecting slider. A compression spring 37 is fixedly sleeved on each supporting column. A snap-fit ​​notch is opened on each connecting post 36.

[0037] The connecting pin 36 is used to engage with the insertion hole on the fixing ring 31 to fix the cable fixing ring 32 on the stuffing box body 1. The compression spring 37 is used to compress the connecting pin 36 to facilitate its movement for insertion and fixing.

[0038] The cable fixing and sealing unit 3 also includes a connecting rectangular plate 38. Each fixing rectangular plate 35 has a rectangular fixing groove on the side surface near the compression spring 37. Each rectangular fixing groove has a sliding groove II. Each sliding groove II is fixedly connected to a supporting cylinder. Each sliding groove II is slidably connected to the connecting rectangular plate 38. The sliding holes on the connecting rectangular plate 38 are slidably connected to the corresponding supporting cylinders. Each connecting rectangular plate 38 is fixedly inserted into the snap-fit ​​notch on the connecting plug 36.

[0039] The connecting rectangular plate 38 is used to insert the connecting pin 36, so that the connecting pin 36 is fixed on the fixed rectangular plate 35, thereby achieving a fixed connection.

[0040] The cable fixing and sealing unit 3 also includes an external sealing cover 39, a sealing strip 310, and a connecting sealing ring 311. A connecting sealing ring 311 is fixedly fitted on the outer surface of the stuffing box body 1 at the left and right sides of the arc-shaped hole. Two external sealing covers 39 are provided on the outer side of the stuffing box body 1. The two external sealing covers 39 adopt an arc-shaped structure. Two equally spaced sealing strips 310 are fixedly connected inside the two external sealing covers 39. Each sealing strip 310 is fixedly snapped onto the corresponding connecting sealing ring 311. The two external sealing covers 39 are fixedly connected to the stuffing box body 1 through the sealing strips 310. The two external sealing covers 39 are connected to each other through the sealing strip. Sealing protrusions are provided at the corresponding positions of the four arc-shaped holes inside the two external sealing covers 39. The four sealing protrusions are snapped into the corresponding arc-shaped holes. Circular protrusions are provided at the left and right sides of the sealing protrusion inside one of the external sealing covers 39.

[0041] The external sealing cover 39 is used to seal and reinforce the outside of the stuffing box body 1. The sealing strip 310 and the connecting sealing ring 311 are snapped together to fix the external sealing cover 39 on the stuffing box body 1 for installation and use.

[0042] The external connection unit 4 includes an external connection shell 41, a fastening nut 42, an external connection thread 43, and a packing hole 44. The packing gland body 1 has packing holes 44 at positions corresponding to two circular protrusions. The two packing holes 44 are fixedly engaged with the corresponding circular protrusions. The right side surface of the packing gland body 1 is provided with an external connection thread 43. An external connection shell 41 is provided on the right side of the packing gland body 1. The inner side of the external connection shell 41 is provided with an internal thread, which is threadedly connected to the external connection thread 43. The packing gland body 1 is connected to the external connection shell 41 through the external connection thread 43. The outer surface of the external connection shell 41 is provided with an external thread, which is threadedly connected to two fastening nuts 42. The external connection shell 41 is connected to the outside through the fastening nuts 42.

[0043] The outer connecting shell 41 is used to fix the fastening nut 42, which is used to fix the device to the outside for disassembly and assembly. The outer connecting thread 43 is used to connect the stuffing box body 1 to the outer connecting shell 41 for sealing installation. The stuffing hole 44 is used to add sealing filler to improve sealing and facilitate use.

[0044] The external connection unit 4 also includes a vacuum pump 45. The left side of the stuffing box body 1 is fixedly connected to the vacuum pump 45 via a support frame. The vacuum pipe on the vacuum pump 45 extends into the stuffing box body 1. The input end of the vacuum pump 45 is electrically connected to the output end of the external power supply via an external control switch group.

[0045] Vacuum pump 45 is used to evacuate the stuffing box body 1 to prevent air bubbles from forming in the filling sealing material and to increase the sealing performance, thereby enabling its processing and use.

[0046] The working principle of the cable stuffing box sealing device provided by this utility model is as follows: First, the outer connecting shell 41 is used to fix the fastening nut 42, which is used to fix the device to the outside for assembly and disassembly. The outer connecting thread 43 is used to connect the stuffing box body 1 to the outer connecting shell 41 for sealing installation. The stuffing hole 44 is used to add sealing filler. The vacuum pump 45 is used to evacuate the stuffing box body 1 to prevent air bubbles from forming in the filling sealing material and increase the sealing performance for assembly and installation. Then, the fixing ring 31 is used to fix the cable fixing ring 32, which is used to fix the cable. The auxiliary cylinder 33 is used for adjustment. The slider 34 moves more stably. Adjusting the slider 34 is used to adjust its position, thereby moving the fixed rectangular plate 35. The fixed rectangular plate 35 is used to engage with the fixed ring 31. The connecting pin 36 is used to engage with the insertion hole on the fixed ring 31, so that the cable fixing ring 32 is fixed on the stuffing box body 1. The compression spring 37 is used to compress, so that the connecting pin 36 can move for insertion. The connecting rectangular plate 38 is used to engage with the connecting pin 36, so that the connecting pin 36 is fixed on the fixed rectangular plate 35. The outer sealing cover 39 is used to seal and reinforce the outside of the stuffing box body 1. The sealing strip 310 and the connecting sealing ring 311 engage, so that the outer sealing cover 39 is fixed on the stuffing box body 1 for sealing installation.

[0047] It is worth noting that the core chip of the external control switch group disclosed in the above embodiments is a PLC microcontroller, and the external control switch group controls the operation of the vacuum pump 45 using methods commonly used in the prior art.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cable stuffing box sealing device, characterized in that: It includes a stuffing box body (1), a cable fixing and sealing unit (3), and an external connection unit (4); The stuffing box body (1) has a cable inlet hole on the left side, which is fixedly connected to the guide flexible tube (2). The stuffing box body (1) has a cable outlet hole on the right side. An external connection unit (4) is provided on the right side of the stuffing box body (1). The stuffing box body (1) has four arc-shaped holes arranged in a ring array. Cable fixing and sealing unit (3): includes a fixing ring (31), a cable fixing ring (32), an auxiliary cylinder (33), an adjusting slider (34), and a fixing rectangular plate (35). A fixing ring (31) is fixedly connected inside the stuffing box body (1). The fixing ring (31) has four annular array insertion holes. The fixing ring (31) is located to the right of the arc-shaped holes. A cable fixing ring (32) is fixedly sleeved on the cable. The diameter of the cable fixing ring (32) is smaller than the diameter of the cable outlet hole on the stuffing box body (1). The cable fixing... The end face of the ring (32) is provided with four ring array of limiting slide grooves. Each limiting slide groove has two rectangular slide grooves. Each rectangular slide groove is fixedly connected to an auxiliary cylinder (33). Each rectangular slide groove is slidably connected to an adjusting slider (34). The sliding hole on each adjusting slider (34) is slidably connected to the corresponding auxiliary cylinder (33). Each limiting slide groove is provided with a fixed rectangular plate (35). Each fixed rectangular plate (35) is fixedly connected to the corresponding adjusting slider (34). Each fixed rectangular plate (35) is provided with a snap-fit ​​circular hole.

2. The cable stuffing box sealing device according to claim 1, characterized in that: The cable fixing and sealing unit (3) also includes a connecting pin (36) and a compression spring (37). Two fixing grooves are opened in the snap-fit ​​circular holes on each fixing rectangular plate (35). A supporting cylinder is fixedly connected in each fixing groove. A connecting slider is slidably connected in each fixing groove. A connecting pin (36) is set in each snap-fit ​​circular hole. Each connecting pin (36) is fixedly connected to the corresponding connecting slider. A compression spring (37) is fixedly sleeved on each supporting cylinder. A snap-fit ​​notch is opened on each connecting pin (36).

3. The cable stuffing box sealing device according to claim 2, characterized in that: The cable fixing and sealing unit (3) also includes a connecting rectangular plate (38). Each fixed rectangular plate (35) has a rectangular fixing groove on the side surface near the compression spring (37). Each rectangular fixing groove has a sliding groove II. Each sliding groove II is fixedly connected to a supporting cylinder. Each sliding groove II is slidably connected to the connecting rectangular plate (38). The sliding hole on the connecting rectangular plate (38) is slidably connected to the corresponding supporting cylinder. Each connecting rectangular plate (38) is fixedly inserted into the snap-fit ​​notch on the connecting plug (36).

4. A cable stuffing box sealing device according to claim 3, characterized in that: The cable fixing and sealing unit (3) also includes an external sealing cover (39), a sealing strip (310), and a connecting sealing ring (311). A connecting sealing ring (311) is fixedly fitted on the outer surface of the stuffing box body (1) at the left and right sides of the arc-shaped hole. Two external sealing covers (39) are provided on the outer side of the stuffing box body (1). The two external sealing covers (39) adopt an arc-shaped structure. Two equally spaced sealing strips (310) are fixedly connected in the two external sealing covers (39). Each sealing strip (310) is fixedly snapped on the corresponding connecting sealing ring (311). The two external sealing covers (39) are fixedly connected on the stuffing box body (1) through the sealing strips (310). The two external sealing covers (39) are connected to each other through the sealing strips. Sealing protrusions are provided in the two external sealing covers (39) at the corresponding positions of the four arc-shaped holes. The four sealing protrusions are snapped in the corresponding arc-shaped holes. Circular protrusions are provided in the one external sealing cover (39) at the left and right sides of the sealing protrusion.

5. A cable stuffing box sealing device according to claim 1, characterized in that: The external connection unit (4) includes an external connection shell (41), a fastening nut (42), an external connection thread (43), and a packing hole (44). The packing gland body (1) has a packing hole (44) at the position corresponding to the two circular protrusions. The two packing holes (44) are fixedly engaged with the corresponding circular protrusions. The right side surface of the packing gland body (1) is provided with an external connection thread (43). The right side of the packing gland body (1) is provided with an external connection shell (41). The inner side of the external connection shell (41) is provided with an internal thread. The internal thread is threadedly connected to the external connection thread (43). The packing gland body (1) is connected to the external connection shell (41) through the external connection thread (43). The outer surface of the external connection shell (41) is provided with an external thread. The external thread is threadedly connected to two fastening nuts (42). The external connection shell (41) is connected to the outside through the fastening nuts (42).

6. A cable stuffing box sealing device according to claim 5, characterized in that: The external connection unit (4) also includes a vacuum pump (45). The left side of the stuffing box body (1) is fixedly connected to the vacuum pump (45) via a support frame. The vacuum pipe on the vacuum pump (45) extends into the stuffing box body (1). The input end of the vacuum pump (45) is electrically connected to the output end of an external power supply via an external control switch group.

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