Filling funnel structure with incoming line angle adjustable function

Abstract

The utility model relates to a filler structure with incoming line angle adjustable function belongs to the technical field of auxiliary component of electric wire and cable laying, including a filler body, characterized by: still including a filler angle adjusting mechanism, the filler angle adjusting mechanism sets up on the perforated carrier for cable through in the use state, the filler body sets up on the filler angle adjusting mechanism, advantage: because the filler angle adjusting mechanism for setting up the filler body is added, so the filler body can obtain corresponding adjustment through the adjustment of the filler angle adjusting mechanism, and it is helpful to satisfy the perforated laying requirement of different angle and different bending radius of large diameter cable by getting rid of the restriction of the included angle between cable and filler body.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary components for laying wires and cables, and specifically relates to a stuffing box structure with adjustable inlet angle. Background Technology

[0002] Since a cable gland (also known as a "Cable Gland" or "Cord Grip") is a mechanical cable fastening and sealing device installed on an opening in the equipment housing, it can be thought of as a "cable cable through-wall connector". On the surface, it allows cables to pass through a partition, but it also has the combined functions of fixing cables, sealing the interface, and protecting cables.

[0003] A typical stuffing box consists of a body, a sealing ring or rubber gasket, and a compression nut. The body has external or internal threads. As it is tightened onto the opening in the equipment housing, the sealing ring or rubber gasket deforms and tightly wraps around the cable during compression. The compression nut, when tightened, presses against the sealing ring, causing it to expand radially and achieve a seal and clamping effect. It should be noted that in some cases, the stuffing box structure also includes a locking ring, a toothed metal or plastic ring that bites into the cable sheath when the nut is tightened, providing strong tensile strength. The function of a stuffing box can be summarized as ensuring the safe, reliable, and long-term operation of the electrical system. In short, the stuffing box acts as a "gatekeeper" for cables entering the equipment enclosure; it is not merely a simple cable entry point component, but a comprehensive functional component integrating sealing, fixing, protection, and shielding.

[0004] As is known in the industry, the common drawback of cable stuffing boxes in dealing with the bending of large-diameter cables is that the bending of the cable causes gaps between the stuffing box and the cable sheath, affecting the seal and reducing the dustproof and waterproof performance (such as IP rating). This problem can be attributed to the mismatch between static design and dynamic design.

[0005] When dealing with thicker cables (i.e., larger diameter cables), the cable can easily form an angle with the stuffing box. Forced installation can damage both the cable and the stuffing box. Furthermore, if the angle is too large, the cable's bending radius may be too large to meet installation requirements.

[0006] Based on the above, exploring technical measures that allow the angle of the stuffing box to be adaptively adjusted according to the incoming line angle is of positive significance. The applicant conducted a literature search, but found no inspiration for solving the aforementioned technical problems in any publicly available Chinese and foreign patent and non-patent literature to date. Therefore, the applicant has conducted persistent and beneficial iterative design, resulting in the technical solution described below. Summary of the Invention

[0007] The objective of this invention is to provide a stuffing box structure with an adjustable inlet angle that helps to overcome the confusion caused by the angle between the cable and the stuffing box and thus meets the requirements for perforation and laying of large-diameter cables with different angles and bending radii.

[0008] The present invention accomplishes its objective as follows: a stuffing box structure with an adjustable inlet angle is provided, comprising a stuffing box body, characterized in that it further comprises a stuffing box angle adjustment mechanism, which is disposed on a perforated carrier for cable passage in the use state, and the stuffing box body is disposed on the stuffing box angle adjustment mechanism.

[0009] In a specific embodiment of this utility model, the stuffing box angle adjustment mechanism includes a perforated carrier fixing device and a stuffing box body angle adjustment device. The perforated carrier fixing device is fixed on the perforated carrier in use. The stuffing box body angle adjustment device is hinged to the perforated carrier fixing device at a position corresponding to the upper part of the perforated carrier fixing device. The stuffing box body is disposed on the stuffing box body angle adjustment device.

[0010] In another specific embodiment of this utility model, in the use state, the perforated carrier has a perforated carrier fixing device enclosure cavity, the perforated carrier fixing device together with the stuffing box body angle adjustment device hinged thereto is fixed on the perforated carrier at a position corresponding to the perforated carrier fixing device enclosure cavity, and the stuffing box body is located on the left or right side of the stuffing box body angle adjustment device; the cable passes through the perforated carrier fixing device enclosure cavity and the stuffing box body in the laying state.

[0011] In another specific embodiment of this utility model, the perforated carrier fixing device includes a front fixing side plate, a rear fixing side plate, a left fixing side plate, and a right fixing side plate. The lower part of the front fixing side plate in the length direction is fixed to the front cavity edge of the perforated carrier fixing device's enclosure cavity. The lower part of the rear fixing side plate in the length direction is fixed to the rear cavity edge of the perforated carrier fixing device's enclosure cavity. The lower part of the left fixing side plate in the length direction is fixed to the left cavity edge of the perforated carrier fixing device's enclosure cavity, and the left fixing side plate corresponds to the left end of the front and rear fixing side plates facing each other. The lower part of the right fixing side plate in the length direction is fixed to the right cavity edge of the perforated carrier fixing device's enclosure cavity, and the right fixing side plate corresponds to the right end of the front and rear fixing side plates facing each other. The stuffing box body angle adjustment device is hinged to both the front fixing side plate and the rear fixing side plate. The stuffing box body is located on the left side of the stuffing box body angle adjustment device.

[0012] In another specific embodiment of this utility model, the stuffing box body angle adjustment device includes a front side plate, a rear side plate, and a cover. The front side plate corresponds to the front side of the front fixed side plate and is hinged to the front fixed side plate. The rear side plate corresponds to the rear side of the rear fixed side plate and is hinged to the rear fixed side plate. The cover is fixed between the front and rear side plates on opposite sides. The stuffing box body is disposed on the left side of the cover, and the cover is supported and engaged with the left side of the left fixed side plate and the right side of the right fixed side plate.

[0013] In another specific embodiment of this utility model, a first hinge hole and a second hinge hole are respectively provided on the upper left and right edges of the front fixed side plate. A first hinge hole and a second hinge hole are provided on the rear fixed side plate at positions corresponding to the first hinge hole of the front side plate. A second hinge hole is provided at positions corresponding to the second hinge hole of the front side plate. A hinge pin hole is provided on the left side of the front side plate at a position corresponding to the first hinge hole. Adjustment pin holes are provided at intervals on the right side of the front side plate at positions corresponding to the second hinge holes. A hinge pin hole is provided on the left side of the rear side plate at a position corresponding to the first hinge hole of the rear side plate. A rear side plate adjusting pin hole is provided at the right end of the rear side plate, spaced apart from the position corresponding to the second hinge hole of the rear side plate. The left end of the front side plate is hinged to the left end of the front fixed side plate by the first hinge pin of the front side plate at the position corresponding to the front side plate hinge pin hole and the first hinge hole of the front side plate. The right end of the front side plate is hinged to the upper right end of the front fixed side plate by the second hinge pin of the front side plate at the position corresponding to the front side plate adjusting pin hole and the second hinge hole of the front side plate. The left end of the rear side plate is hinged to the left end of the rear fixed side plate by the first hinge pin of the rear side plate at the position corresponding to the rear side plate hinge pin hole and the first hinge hole of the rear side plate. The right end of the rear side plate is hinged to the upper right end of the rear fixed side plate by the second hinge pin of the rear side plate at the position corresponding to the rear side plate adjusting pin hole and the second hinge hole of the rear side plate.

[0014] In a further specific embodiment of this utility model, the cover includes a left side plate and a right side plate. The left and right side plates cooperate with each other to form a cross-sectional shape of ∧. The left and right side plates are fixed between opposite sides of the front and rear side plates. A stuffing box body configuration hole is provided on the left side plate of the cover, and the stuffing box body is disposed on the stuffing box body configuration hole.

[0015] In a further specific embodiment of this utility model, a horizontal folded edge is formed at the lower part of the front fixed side plate along its length direction. This horizontal folded edge is fixed to the front cavity of the perforated carrier fixing device enclosure cavity along the upward-facing side of its opening. A horizontal folded edge is formed at the lower part of the rear fixed side plate along its length direction. This horizontal folded edge is fixed to the rear cavity of the perforated carrier fixing device enclosure cavity along the upward-facing side of its opening. A horizontal folded edge is formed at the lower part of the left fixed side plate along its length direction. This horizontal folded edge is fixed to the left cavity of the perforated carrier fixing device enclosure cavity along the upward-facing side of its opening. A horizontal folded edge is formed at the lower part of the right fixed side plate along its length direction. This horizontal folded edge is fixed to the left cavity of the perforated carrier fixing device enclosure cavity along the upward-facing side of its opening.

[0016] In another specific embodiment of this utility model, a left fixed side plate limiting flange is folded to the left at the upper part of the left fixed side plate along its length direction, a right fixed side plate limiting flange is folded to the right at the upper part of the right fixed side plate along its length direction, a right fixed side plate limiting flange is formed at the lower part of the left side plate of the cover along its length direction, and a right side plate limiting flange is formed at the lower part of the right side plate of the cover along its length direction by folding to the left. A protective limiting flange is fixed along the length direction of the right side plate limiting flange by spaced screws.

[0017] In another specific embodiment of this utility model, a front side plate arc-shaped groove is formed on the side of the front side plate facing the rear side plate. A front side plate arc-shaped groove reinforcement adjustment plate is fixed at a position corresponding to the front side plate arc-shaped groove. A front pin hole is formed on the front side plate arc-shaped groove reinforcement adjustment plate, with a position corresponding to the front side plate adjustment pin hole and an equal number of front pin holes. The front side plate second hinge pin passes through the front pin hole and the front side plate adjustment pin hole in sequence. A rear side plate arc-shaped groove is formed on the side of the rear side plate facing the front side plate. A rear side plate arc-shaped groove reinforcement adjustment plate is fixed at a position corresponding to the rear side plate arc-shaped groove. A rear pin hole is formed on the rear side plate arc-shaped groove reinforcement adjustment plate, with a position corresponding to the rear side plate adjustment pin hole and an equal number of rear pin holes. The rear side plate second hinge pin passes through the rear pin hole and the rear side plate adjustment pin hole in sequence.

[0018] The technical effect of the present invention is that, by adding a stuffing box angle adjustment mechanism for setting the stuffing box body, the stuffing box body can be adjusted accordingly by adjusting the stuffing box angle adjustment mechanism, which helps to get rid of the constraint of the included angle between the cable and the stuffing box body and meet the requirements of perforation and laying of large diameter cables with different angles and different bending radii. Attached Figure Description

[0019] Figure 1 This is an assembly structure diagram of an embodiment of the present invention; Figure 2 for Figure 1 A sectional view after assembly; Figure 3 This is a schematic diagram illustrating an application example of this utility model.

[0020] In the diagram: 1. Stuffing gland body; 2. Stuffing gland angle adjustment mechanism; 21. Perforated carrier fixing device; 211. Front fixed side plate; 2111. First hinge hole of front side plate; 2112. Second hinge hole of front side plate; 2113. Horizontal folded edge of front fixed side plate; 212. Rear fixed side plate; 2121. First hinge hole of rear side plate; 2122. Second hinge hole of rear side plate; 2123. Horizontal folded edge of rear fixed side plate; 213. Left fixed side plate; 2131. Horizontal folded edge of left fixed side plate; 2132. Limiting edge of left fixed side plate; 214. Right fixed side plate; 2141. Horizontal folded edge of right fixed side plate; 2142. Limiting edge of right fixed side plate; 22. Stuffing gland body angle adjustment device; 221. Front side plate; 2211. 22111. Front side plate hinge pin hole; 2212. Front side plate adjusting pin hole; 22121. Front side plate second hinge pin; 2213. Front side plate arc groove reinforcement adjustment plate; 222. Rear side plate; 2221. Rear side plate adjusting pin hole; 22211. Rear side plate second hinge pin; 2222. Rear side plate first hinge pin; 2223. Rear side plate arc groove; 223. Cover; 2231. Cover left side plate; 22311. Stuffing gland body configuration hole; 22312. Cover left side plate limiting flange; 2232. Cover right side plate; 22321. Cover right side plate limiting baffle fixing flange; 22322. Screw; 22323. Protective extension limiting strip; 3. Cable; 4. 41. Perforated carrier, 41. Perforated carrier fixing device enclosure cavity. Detailed Implementation

[0021] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0022] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on... Figure 1The current position is used as an example and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0023] Please see Figure 1 The diagram shows a stuffing box body 1. A key feature is that the stuffing box structure also includes a stuffing box angle adjustment mechanism 2, which is mounted on a perforated carrier 4 for the passage of a cable 3 in its operational state. The stuffing box body 1 is mounted on the stuffing box angle adjustment mechanism 2.

[0024] The applicant needs to clarify that, since the stuffing box body 1 has various forms with largely similar shapes and structures that are difficult to exhaustively list, this embodiment does not require a specific limitation on the specific structure of the stuffing box body 1, because... Figures 1 to 3 The stuffing box body 1 shown is merely an example. Furthermore, the perforated carrier 4 mentioned above is not limited to structures such as ship hull panels, electrical cabinet partitions, walls, etc. This utility model illustrates a ship hull panel (also known as a bulkhead).

[0025] The aforementioned stuffing box angle adjustment mechanism 2 includes a perforated carrier fixing device 21 and a stuffing box body angle adjustment device 22. The perforated carrier fixing device 21 is fixed on the aforementioned perforated carrier 4 in the use state. The stuffing box body angle adjustment device 22 is hinged to the perforated carrier fixing device 21 at a position corresponding to the upper part of the perforated carrier fixing device 21. The aforementioned stuffing box body 1 is disposed on the stuffing box body angle adjustment device 22.

[0026] In use, the perforated carrier 4 is provided with a perforated carrier fixing device enclosure cavity 41. The perforated carrier fixing device 21, together with the stuffing box body angle adjustment device 22 hinged thereto, is fixed on the perforated carrier 4 at a position corresponding to the perforated carrier fixing device enclosure cavity 41. The stuffing box body 1 is located on the left or right side of the stuffing box body angle adjustment device 22. The cable 3 passes through the perforated carrier fixing device enclosure cavity 41 and the stuffing box body 1 in the laying state.

[0027] Please stay tuned. Figure 1The aforementioned perforated carrier fixing device 21 includes a front fixing side plate 211, a rear fixing side plate 212, a left fixing side plate 213, and a right fixing side plate 214. The lower part of the front fixing side plate 211 along its length is fixed to the front cavity edge of the perforated carrier fixing device enclosure cavity 41. The lower part of the rear fixing side plate 212 along its length is fixed to the rear cavity edge of the perforated carrier fixing device enclosure cavity 41. The lower part of the left fixing side plate 213 along its length is fixed to the left cavity edge of the perforated carrier fixing device enclosure cavity 41. Plate 213 is located between the left ends of the front and rear fixed side plates 211 and 212 facing each other. The lower part of the right fixed side plate 214 along its length is fixed to the right cavity of the perforated carrier fixing device enclosure cavity 41 along its opening. The right fixed side plate 214 is located between the right ends of the front and rear fixed side plates 211 and 212 facing each other. The aforementioned stuffing box body angle adjustment device 22 is simultaneously hinged to the aforementioned front fixed side plate 211 and rear fixed side plate 212. The aforementioned stuffing box body 1 is located on the left side of the stuffing box body angle adjustment device 22.

[0028] Please stay tuned. Figure 1 The aforementioned stuffing box body angle adjustment device 22 includes a front side plate 221, a rear side plate 222, and a cover 223. The front side plate 221 corresponds to the front side of the aforementioned front fixed side plate 211 and is hinged to the front fixed side plate 211. The rear side plate 222 corresponds to the rear side of the aforementioned rear fixed side plate 212 and is hinged to the rear fixed side plate 212. The cover 223 is fixed between the front and rear side plates 221 and 222 on opposite sides. The aforementioned stuffing box body 1 is disposed on the left side of the aforementioned cover 223, and the cover 223 is supported and cooperated with the left side of the aforementioned left fixed side plate 213 and the right side of the aforementioned right fixed side plate 214.

[0029] See details Figure 1On the aforementioned front fixed side plate 211, a first hinge hole 2111 and a second hinge hole 2112 are respectively provided on the upper left and right edges of the front fixed side plate 211. On the aforementioned rear fixed side plate 212, a first hinge hole 2121 is provided at a position corresponding to the first hinge hole 2111 of the front side plate, and a second hinge hole 2122 is provided at a position corresponding to the second hinge hole 2112 of the front side plate. On the aforementioned front side plate 221... On the left side of the front side plate 221, a front side plate hinge pin hole 2211 is provided at a position corresponding to the first hinge hole 2111 of the front side plate. On the right end of the front side plate 221, a front side plate adjusting pin hole 2212 is provided at a distance corresponding to the second hinge hole 2112 of the front side plate. On the left end of the aforementioned rear side plate 222, a rear side plate hinge pin hole (not shown in the figure) is provided at a position corresponding to the first hinge hole 2121 of the aforementioned rear side plate. On the right end of the rear side plate 222, a rear side plate adjusting pin hole 2212 is provided at a position corresponding to the second hinge hole 2112 of the front side plate. A rear side plate adjusting pin hole 2221 is provided at a distance from the second hinge hole 2122 of the plate. The left end of the front side plate 221 is hinged to the left end of the aforementioned front fixed side plate 211 by the first hinge pin 22111 of the front side plate at a position corresponding to the front side plate adjusting pin hole 2211 and the first hinge hole 2111 of the front side plate. The right end of the front side plate 221 is hinged to the rear side plate 221 by the second hinge pin 22121 of the front side plate at a position corresponding to the front side plate adjusting pin hole 2212 and the second hinge hole 2112 of the front side plate. The upper right end of the front fixed side plate 211 is hinged. The left end of the rear side plate 222 is hinged to the left end of the aforementioned rear fixed side plate 212 by the first hinge pin 2222 of the rear side plate at a position corresponding to the rear side plate hinge pin hole 2121 (not shown in the figure). The right end of the rear side plate 222 is hinged to the upper right end of the rear fixed side plate 212 by the second hinge pin 22211 of the rear side plate at a position corresponding to the rear side plate adjustment pin hole 2221 and the rear side plate second hinge hole 2122.

[0030] Please stay tuned. Figure 1 The aforementioned housing 223 includes a left side plate 2231 and a right side plate 2232. The left and right side plates 2231 and 2232 cooperate with each other to form a cross-sectional structure with a U-shape. The left and right side plates 2231 and 2232 are fixed between the opposite sides of the aforementioned front and rear side plates 221 and 222. A stuffing box body configuration hole 22311 is provided on the left side plate 2231 of the housing, and the aforementioned stuffing box body 1 is disposed on the stuffing box body configuration hole 22311.

[0031] A horizontal flange 2113 is formed at the lower part of the aforementioned front fixed side plate 211 along its length direction. This horizontal flange 2113 is fixed to the upper side of the front cavity of the aforementioned perforated carrier fixing device enclosure cavity 41 by fasteners such as bolts (hereinafter the same example). A horizontal flange 2123 is formed at the lower part of the aforementioned rear fixed side plate 212 along its length direction. This horizontal flange 2123 is fixed to the upper side of the rear cavity of the perforated carrier fixing device enclosure cavity 41 along its length direction. One side is fixed, and a horizontal folded edge 2131 of the left fixed side plate 213 is formed at the lower part of the length direction of the aforementioned left fixed side plate 213. The horizontal folded edge 2131 of the left fixed side plate is fixed to the left cavity of the aforementioned perforated carrier fixing device enclosure cavity 41 along the side facing upward. A horizontal folded edge 2141 of the right fixed side plate 214 is formed at the lower part of the length direction of the aforementioned right fixed side plate 214. The horizontal folded edge 2141 of the right fixed side plate is fixed to the left cavity of the aforementioned perforated carrier fixing device enclosure cavity 41 along the side facing upward.

[0032] Please see Figure 2 And combined Figure 1 A left fixed side plate limiting flange 2132 is folded to the left at the upper part of the aforementioned left fixed side plate 213 along its length direction, and a right fixed side plate limiting flange 2142 is folded to the right at the upper part of the aforementioned right fixed side plate 214 along its length direction. A right-folding left side plate limiting flange 22312 is formed at the lower part of the aforementioned left side plate 2231 along its length direction, and a right side plate limiting baffle fixing flange 22321 is formed at the lower part of the aforementioned right side plate 2232 along its length direction. A protective limiting baffle strip 22323 is fixed along the length direction of the right side plate limiting baffle fixing flange 22321 by screws 22322 spaced apart.

[0033] A front side plate arc-shaped groove is formed on the side of the aforementioned front side plate 221 facing the aforementioned rear side plate 222. A front side plate arc-shaped groove reinforcement adjustment plate 2213 is fixed at a position corresponding to the front side plate arc-shaped groove (not shown in the figure). The front side plate arc-shaped groove reinforcement adjustment plate 2213 has front pin holes (not labeled in the figure) that are equal in number and position to the aforementioned front side plate adjusting pin holes 2212. The aforementioned front side plate second hinge pin 22121 passes through the front pin holes and the aforementioned front side plate adjustment pin holes in sequence. The rear side plate 222 has an arc-shaped groove 2223 on the side of the rear side plate 222 facing the front side plate 221. A rear side plate arc-shaped groove reinforcement adjustment plate is fixed at the position corresponding to the rear side plate arc-shaped groove 2223. The rear side plate arc-shaped groove reinforcement adjustment plate has rear pin holes in the same number as the rear side plate adjustment pin holes 2221. The rear side plate second hinge pin 22211 passes through the rear pin holes and the rear side plate adjustment pin holes 2221 in sequence.

[0034] Please see Figure 3 And combined Figure 1 and Figure 2 Taking the perforated carrier 4 as a cabin bulkhead or hull bulkhead of a ship as an example, the perforated carrier fixing device 21 of the stuffing box angle adjustment mechanism 2 of the present invention is positioned at the location corresponding to the perforated carrier fixing device enclosure cavity 41 opened on the cabin bulkhead. Specifically, the aforementioned front and rear fixed side plate horizontal folds 2113, 2123 and left and right fixed side plate horizontal folds 2131, 2141 are fixed as described above by the applicant. Furthermore, sealant can be applied and sealing gaskets can be installed in advance corresponding to the aforementioned horizontal folds. The stuffing box body angle adjustment device 22 and the perforated carrier fixing device 21 are then combined and positioned... Figure 2 The state shown.

[0035] Because the diameters and installation positions of cables 3 differ, the included angle between cables 3 and the stuffing box body 1, as well as the bending radius of cables 3, also differ. Therefore, it is necessary to make reasonable adjustments to the stuffing box body 1 to avoid damaging cables 3 and / or the stuffing box body 1. Thus, since the aforementioned front and rear side plate adjusting pin holes 2212 and 2221 of this invention each have a set, for example, this application illustrates three holes spaced apart, but the actual number of holes is not limited to those shown. After the cable 3 has passed through the stuffing box body 1, the cover 223 is adjusted according to the requirements, using the first and second hinge pins 22111 and 2222 of the front and rear side plates as the pivot points (also called the "rotation center"), so that the cover 223 swings counterclockwise or clockwise to the required angle. After adjusting to a degree that meets the angle requirements between the cable 3 and the stuffing box body 1, the second hinge pin 22121 of the front side plate is hinged at the position corresponding to the adjustment pin hole 2212 and the second hinge hole 2112 of the front side plate, and the second hinge pin 22211 of the rear side plate is hinged at the position corresponding to the adjustment pin hole 2221 and the second hinge hole 2122 of the rear side plate, thereby adjusting the position of the cover 23 to meet the requirements of the cable 3 passing through.

[0036] Depend on Figure 3 As shown, the end of the stuffing box body 1 facing the stuffing box body configuration hole 22311 is well fitted with the stuffing box body configuration hole 22311, and preferably uses glue injection to seal and waterproof, so as to prevent moisture from entering from the gap.

[0037] Furthermore, based on professional knowledge, the stuffing box angle adjustment mechanism 2 of this utility model can have various sizes depending on the stuffing box body 1 of different specifications.

[0038] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A stuffing box structure with adjustable feed angle, comprising a stuffing box body (1), characterized in that: It also includes a stuffing box angle adjustment mechanism (2), which is installed on a perforated carrier (4) for the cable (3) to pass through in the use state. The stuffing box body (1) is installed on the stuffing box angle adjustment mechanism (2). The stuffing box angle adjustment mechanism (2) includes a perforated carrier fixing device (21) and a stuffing box body angle adjustment device (22). The perforated carrier fixing device (21) is fixed on the perforated carrier (4) in the use state. The stuffing box body angle adjustment device (22) is hinged to the perforated carrier fixing device (21) at a position corresponding to the upper part of the perforated carrier fixing device (21). The stuffing box body (1) is installed on the stuffing box body angle adjustment device (22).

2. The stuffing box structure with adjustable feed angle according to claim 1, characterized in that: In use, the perforated carrier (4) has a perforated carrier fixing device enclosure cavity (41). The perforated carrier fixing device (21), together with the stuffing box body angle adjustment device (22) hinged thereto, is fixed on the perforated carrier (4) at a position corresponding to the perforated carrier fixing device enclosure cavity (41). The stuffing box body (1) is located on the left or right side of the stuffing box body angle adjustment device (22). The cable (3) passes through the perforated carrier fixing device enclosure cavity (41) and the stuffing box body (1) in the laying state.

3. The stuffing box structure with adjustable infeed angle according to claim 2, characterized in that: The perforated carrier fixing device (21) includes a front fixing side plate (211), a rear fixing side plate (212), a left fixing side plate (213), and a right fixing side plate (214). The lower part of the front fixing side plate (211) along its length is fixed to the front cavity edge of the perforated carrier fixing device enclosure cavity (41). The lower part of the rear fixing side plate (212) along its length is fixed to the rear cavity edge of the perforated carrier fixing device enclosure cavity (41). The lower part of the left fixing side plate (213) along its length is fixed to the left cavity edge of the perforated carrier fixing device enclosure cavity (41). Corresponding to the left ends of the front fixed side plate (211) and the rear fixed side plate (212) facing each other, the lower part of the right fixed side plate (214) along the length direction is fixed to the right cavity of the perforated carrier fixing device enclosure cavity (41) along the opening, and the right fixed side plate (214) corresponds to the right ends of the front fixed side plate (211) and the rear fixed side plate (212) facing each other; the stuffing box body angle adjustment device (22) is simultaneously hinged to the front fixed side plate (211) and the rear fixed side plate (212); the stuffing box body (1) is located on the left side of the stuffing box body angle adjustment device (22).

4. The stuffing box structure with adjustable infeed angle according to claim 3, characterized in that: The stuffing box body angle adjustment device (22) includes a front side plate (221), a rear side plate (222), and a cover (223). The front side plate (221) corresponds to the front side of the front fixed side plate (211) and is hinged to the front fixed side plate (211). The rear side plate (222) corresponds to the rear side of the rear fixed side plate (212) and is hinged to the rear fixed side plate (212). The cover (223) is fixed between the front side plate (221) and the rear side plate (222) on opposite sides. The stuffing box body (1) is located on the left side of the cover (223), and the cover (223) is supported and engaged with the left side of the left fixed side plate (213) and the right side of the right fixed side plate (214).

5. The stuffing box structure with adjustable infeed angle according to claim 4, characterized in that: On the front fixed side plate (211), a first hinge hole (2111) and a second hinge hole (2112) are respectively provided on the upper left and right edges of the front fixed side plate (211). On the rear fixed side plate (212), a first hinge hole (2121) is provided at a position corresponding to the first hinge hole (2111) of the front side plate, and a second hinge hole (2122) is provided at a position corresponding to the second hinge hole (2112) of the front side plate. On the left side of the front side plate (221), a front side plate hinge pin hole (2211) is provided at a position corresponding to the first hinge hole (2111) of the front side plate. On the right end of the front side plate (221), a front side plate adjusting pin hole (2212) is provided at a position corresponding to the second hinge hole (2112) of the front side plate. On the left end of the rear side plate (222), a rear side plate hinge pin hole is provided at a position corresponding to the first hinge hole (2121) of the rear side plate. On the right end of the rear side plate (222), a rear side plate adjusting pin hole (2212) is provided at a position corresponding to the second hinge hole (2112) of the rear side plate. The connecting hole (2122) is provided with a rear side plate adjusting pin hole (2221) spaced apart. The left end of the front side plate (221) is hinged to the left end of the front fixed side plate (211) by the first hinge pin (22111) of the front side plate at the position corresponding to the front side plate adjusting pin hole (2211) and the first hinge hole (2111) of the front side plate. The right end of the front side plate (221) is hinged by the second hinge pin (22121) of the front side plate at the position corresponding to the front side plate adjusting pin hole (2212) and the second hinge hole (2112) of the front side plate. The upper right end of the front fixed side plate (211) is hinged to the left end of the rear fixed side plate (212). The left end of the rear side plate (222) is hinged to the left end of the rear fixed side plate (212) by the first hinge pin (2222) of the rear side plate at the position corresponding to the hinge pin hole of the rear side plate and the first hinge hole (2121) of the rear side plate. The right end of the rear side plate (222) is hinged to the upper right end of the rear fixed side plate (212) by the second hinge pin (22211) of the rear side plate at the position corresponding to the adjustment pin hole (2221) of the rear side plate and the second hinge hole (2122) of the rear side plate.

6. The stuffing box structure with adjustable infeed angle according to claim 5, characterized in that: The cover (223) includes a left side plate (2231) and a right side plate (2232). The left side plate (2231) and the right side plate (2232) cooperate with each other to form a cross-sectional structure with a U-shape. The left side plate (2231) and the right side plate (2232) are fixed between the front side plate (221) and the rear side plate (222) on opposite sides. A stuffing box body configuration hole (22311) is provided on the left side plate (2231), and the stuffing box body (1) is disposed on the stuffing box body configuration hole (22311).

7. The stuffing box structure with adjustable infeed angle according to claim 4, characterized in that: A horizontal flange (2113) is formed at the lower part of the front fixed side plate (211) along its length direction. This horizontal flange (2113) is fixed to the front cavity of the perforated carrier fixing device enclosure cavity (41) along the upward-facing side. A horizontal flange (2123) is formed at the lower part of the rear fixed side plate (212) along its length direction. This horizontal flange (2123) is fixed to the rear cavity of the perforated carrier fixing device enclosure cavity (41) along the upward-facing side. The lower part of the left fixed side plate (213) in the length direction is formed with a horizontal fold (2131), which is fixed to the left cavity of the perforated carrier fixing device enclosure cavity (41) along the upward side of the opening. The lower part of the right fixed side plate (214) in the length direction is formed with a horizontal fold (2141), which is fixed to the left cavity of the perforated carrier fixing device enclosure cavity (41) along the upward side of the opening.

8. The stuffing box structure with adjustable infeed angle according to claim 6, characterized in that: A left fixed side plate limiting flange (2132) is folded to the left at the upper part of the left fixed side plate (213) along its length direction, and a right fixed side plate limiting flange (2142) is folded to the right at the upper part of the right fixed side plate (214) along its length direction. A right-folding left side plate limiting flange (22312) is formed at the lower part of the left side plate (2231) along its length direction, and a right side plate limiting baffle fixing flange (22321) is formed at the lower part of the right side plate (2232) along its length direction. A protective limiting baffle strip (22323) is fixed along the length direction of the right side plate limiting baffle fixing flange (22321) by spaced screws (22322).

9. The stuffing box structure with adjustable infeed angle according to claim 5, characterized in that: A front side plate arc-shaped groove is formed on the side of the front side plate (221) facing the rear side plate (222). A front side plate arc-shaped groove reinforcement adjustment plate (2213) is fixed at the position corresponding to the front side plate arc-shaped groove. The front side plate arc-shaped groove reinforcement adjustment plate (2213) has front pin holes in the same number as the front side plate adjusting pin holes (2212). The front side plate second hinge pin (22121) passes through the front pin holes and the front side plate adjusting pin holes (2212) in sequence. A rear side plate arc groove (2223) is provided on the side of the rear side plate (222) facing the front side plate (221). A rear side plate arc groove reinforcement adjustment plate is fixed at the position corresponding to the rear side plate arc groove (2223). The rear side plate arc groove reinforcement adjustment plate is provided with rear pin holes that are in the same position and number as the rear side plate adjustment pin holes (2221). The rear side plate second hinge pin (22211) passes through the rear pin holes and the rear side plate adjustment pin holes (2221) in sequence.

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