Filler port closure device
By setting injection holes and abutment parts on the outer periphery of the stuffing box, the problem of sealant overflow caused by stuffing box leakage is solved, achieving stability of injection and sealing effect, and avoiding unnecessary waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ACAD OF SAFETY SCI & TECH
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-26
AI Technical Summary
In the prior art, the sealing effect of the stuffing box is leaked due to wear, aging or deformation, and the glue gun is difficult to accurately aim at the leak location during the glue injection process, resulting in the overflow and waste of sealant.
Design a stuffing box sealing device, including a connecting part, an abutting part, and an injection head. By opening an injection hole on the outer periphery of the stuffing box and pressing the abutting part against the outer periphery of the stuffing box, the injection head is fixed in the injection hole. Sealant is injected using a glue gun to seal the leakage area and prevent the sealant from overflowing.
It achieves stability in the glue injection process, avoids sealant overflow, reduces waste, and improves sealing effect and assembly convenience.
Smart Images
Figure CN224414348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing device technology, and in particular to a stuffing box sealing device. Background Technology
[0002] Stuffing glands are common dynamic sealing devices in mechanical equipment, widely used in pumps, valves, agitators, oil drilling, and other applications. Due to material wear, aging, deformation, or uneven pressure, the sealing effect of stuffing glands deteriorates, leading to leaks. For leaks, a simple emergency sealant injection method involves manually holding a caulking gun and injecting sealant into the leak location. While this method is simple, the caulking gun is prone to shaking during injection, making it difficult to accurately align with the leak. Furthermore, achieving a perfect match between the caulking gun and the leak point is challenging, resulting in sealant overflow and waste. Utility Model Content
[0003] The purpose of this utility model embodiment is to provide a stuffing box sealing device that can be stably fixed on the outer periphery of the stuffing box to prevent sealant from overflowing onto the surface of the stuffing box and avoid unnecessary waste.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An LED display module is provided, including a connecting part, an abutting part, a dispensing head, and a dispensing gun. The connecting part is disposed adjacent to the outer periphery of a stuffing box. The abutting part and the dispensing head are both connected to the connecting part, and the abutting part and the dispensing head are respectively located on opposite sides of the stuffing box along its radial direction. The outer periphery of the stuffing box has a dispensing hole communicating with a leakage area of the stuffing box, which is directly opposite the dispensing head. The abutting part abuts against the outer periphery of the stuffing box. The dispensing head extends into the dispensing hole and remains fixed relative to the stuffing box. The dispensing gun is connected to the dispensing head, and the dispensing gun can inject sealant into the leakage area of the stuffing box through the dispensing head to seal the stuffing box.
[0006] As a further embodiment of the stuffing box sealing device, an injection valve is also included, through which the injection gun is connected to the injection head.
[0007] As a further embodiment of the stuffing box sealing device, the end of the injection head facing the injection hole is provided with a first external thread, the inner wall of the injection hole is provided with a first internal thread, and the injection head is threadedly connected to the injection hole.
[0008] As a further embodiment of the stuffing box sealing device, the glue injection valve is threadedly connected to the glue injection head.
[0009] As a further embodiment of the stuffing box sealing device, the glue gun is threadedly connected to the glue injection valve.
[0010] As a further embodiment of the stuffing box sealing device, the distance between the abutting part and / or the injection head and the stuffing box is adjustable.
[0011] As a further embodiment of the stuffing box sealing device, the connecting part is provided with a first threaded hole corresponding to the injection head. The first threaded hole is coaxial with the injection hole. The injection head is provided with a second external thread that mates with the first threaded hole. The injection head is screwed and fixed to the first threaded hole. The injection head can be moved into the injection hole by screwing and abuts against the outer periphery of the stuffing box.
[0012] As a further embodiment of the stuffing box sealing device, the outer periphery of the end of the injection head away from the stuffing box has at least one set of snap-fit parts, each set of snap-fit parts having two snap-fit surfaces arranged opposite to each other, and the two snap-fit surfaces being parallel to each other.
[0013] As a further embodiment of the stuffing box sealing device, the connecting part is provided with a second threaded hole corresponding to the abutting part, the abutting part is a screw, the screw is screwed and fixed to the second threaded hole, and the screw can be moved to abut against the outer periphery of the stuffing box by screwing.
[0014] As a further embodiment of the stuffing box sealing device, a hydraulic pump and a connecting pipe are also included, wherein the hydraulic pump is connected to the glue gun via the connecting pipe.
[0015] Beneficial effects:
[0016] This invention features an injection hole on the outer periphery of the stuffing box that communicates with the leakage area. A contact part fixed to the connecting part is pressed tightly against the outer periphery of the stuffing box, fixing the injection head on the connecting part inside the injection hole. When sealant is injected into the injection hole using a glue gun connected to the injection head, the injection head remains stably pressed against the outer periphery of the stuffing box, preventing it from shaking relative to the stuffing box. This prevents sealant from overflowing onto the surface of the stuffing box and avoids unnecessary waste. Attached Figure Description
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the structure of the stuffing box sealing device installed on the stuffing box according to an embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the structure of the stuffing box sealing device (excluding the glue gun and connecting pipe) installed on the stuffing box according to an embodiment of the present utility model;
[0020] Figure 3This is a schematic diagram of the assembly structure of the stuffing box and valve according to an embodiment of the present utility model;
[0021] Figure 4 This is an exploded view of the connecting part, the abutting part, and the dispensing head described in an embodiment of this utility model.
[0022] In the picture:
[0023] 100. Stuffing box; 110. Injection port; 200. Valve;
[0024] 1. Connecting part; 11. First threaded hole; 12. Second threaded hole; 2. Abutting part; 3. Injection head; 31. Snap-fitting part; 4. Injection gun; 5. Injection valve; 6. Hydraulic pump; 7. Connecting pipe. Detailed Implementation
[0025] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are merely used for distinction in description and have no special meaning.
[0029] like Figure 1 and Figure 3 As shown, this embodiment takes the stuffing box 100 installed outside the valve 200 as an example to describe the stuffing box sealing device in detail.
[0030] like Figures 1 to 3 As shown, this utility model embodiment provides a stuffing box sealing device, including a connecting part 1, an abutting part 2, an injection head 3, and an injection gun 4. The connecting part 1 is disposed adjacent to the outer periphery of the stuffing box 100. The abutting part 2 and the injection head 3 are both connected to the connecting part 1, and the abutting part 2 and the injection head 3 are respectively located on opposite sides of the stuffing box 100 along its radial direction. The outer periphery of the stuffing box 100 is provided with an injection hole 110 that communicates with the leakage area of the stuffing box 100, facing the injection head 3. The abutting part 2 abuts against the outer periphery of the stuffing box 100. The injection head 3 extends into the injection hole 110. The injection gun 4 is connected to the injection head 3. The injection gun 4 can inject sealant into the leakage area of the stuffing box 100 through the injection head 3 to seal the stuffing box 100.
[0031] In this embodiment, a glue injection hole 110 communicating with the leakage area is opened on the outer periphery of the stuffing box 100, and the abutment part 2 fixed on the connecting part 1 is pressed against the outer periphery of the stuffing box 100. At the same time, the glue injection head 3 fixed on the connecting part 1 extends into the glue injection hole 110 and remains fixed relative to the stuffing box 100. The glue injection gun 4 is filled with sealant. When the sealant is injected into the glue injection hole 110 through the glue injection gun 4 connected to the glue injection head 3, the glue injection head 3 is stably pressed against the outer periphery of the stuffing box 100 and will not shake relative to the stuffing box 100, thereby preventing the sealant from overflowing onto the surface of the stuffing box 100 and avoiding unnecessary waste.
[0032] In this embodiment, the end of the dispensing head 3 facing the dispensing hole 110 is provided with a first external thread, and the inner wall of the dispensing hole 110 is provided with an internal thread. The dispensing head 3 is threadedly screwed into the dispensing hole 110. The threaded connection between the dispensing head 3 and the dispensing hole 110 can improve the installation stability of the dispensing head 3 and avoid affecting the dispensing stability due to failure of tightness.
[0033] Furthermore, the stuffing box sealing device in this embodiment also includes an injection valve 5, and the injection gun 4 is connected to the injection head 3 through the injection valve 5.
[0034] By setting an injection valve 5 between the injection gun 4 and the injection head 3, the injection speed of the sealant can be controlled by the injection valve 5. After the stuffing box 100 is sealed, the connecting part 1, the abutting part 2 and the injection head 3 are fixed on the stuffing box 100. At this time, the injection valve 5 is connected to the injection head 3. By closing the injection valve 5, the injection head 3 can be sealed to improve the sealing effect of the stuffing box 100.
[0035] In this embodiment, the glue injection valve 5 is threadedly connected to the glue injection head 3, which facilitates the assembly of the glue injection valve 5 and ensures high connection stability. After the glue injection is completed, the glue injection valve 5 is closed and the glue injection gun 4 is removed, thus completing the sealing of the stuffing box 100.
[0036] Furthermore, the glue gun 4 and the glue valve 5 are threaded together, resulting in high connection stability and high assembly efficiency.
[0037] Furthermore, the distance between the contact part 2 and / or the injection head 3 and the stuffing box 100 is adjustable to facilitate the smooth assembly and fixation of the stuffing box sealing device onto the stuffing box 100.
[0038] In one embodiment, such as Figure 4 As shown, the distance between the dispensing head 3 and the stuffing box 100 is adjustable. The connecting part 1 has a first threaded hole 11 corresponding to the dispensing head 3. The first threaded hole 11 is coaxial with the dispensing hole 110. The dispensing head 3 has a second external thread that mates with the first threaded hole 11. The dispensing head 3 is screwed and fixed to the first threaded hole 11. The dispensing head 3 can be moved into the dispensing hole 110 by screwing and abuts against the outer periphery of the stuffing box 100.
[0039] In this embodiment, by providing an external thread on the outer periphery of the dispensing head 3 that mates with the first threaded hole 11, the dispensing head 3 can be screwed and fixed to the first threaded hole 11. Simultaneously, the dispensing head 3 can be moved towards or away from the stuffing box 100 by screwing it. Specifically, before assembling it onto the stuffing box 100, the dispensing head 3 is first assembled onto the connecting part 1. Then, the connecting part 1 is brought close to the outer periphery of the stuffing box 100, and the abutting part 2 abuts against the outer periphery of the stuffing box 100, with the dispensing head 3 aligned with the dispensing hole 110. Then, the dispensing head 3 is screwed, moving it towards the dispensing hole 110 and screwing it into place.
[0040] The dispensing head 3 has at least one set of locking portions 31 on its outer periphery at the end away from the stuffing box 100. Each set of locking portions 31 has two locking surfaces arranged opposite to each other, and the two locking surfaces are parallel to each other. With this structural design, the locking surfaces can be clamped with a wrench, which facilitates the screwing operation of the dispensing head 3.
[0041] For example, the outer periphery of the dispensing head 3 in this embodiment has three sets of snap-fit portions 31, and the cross-section of the six snap-fit surfaces of the three sets of snap-fit portions 31 is a regular hexagonal structure.
[0042] Optionally, in some other embodiments, the connecting part 1 has a second threaded hole 12 corresponding to the abutting part 2. The abutting part 2 is a screw, which is screwed and fixed to the second threaded hole 12. The screw can be moved by screwing to abut against the outer periphery of the stuffing box 100.
[0043] In this embodiment, a screw is used as the abutment part 2. A second threaded hole 12 corresponding to the screw is opened on the connecting part 1. The screw is screwed into the second threaded hole 12. By screwing the screw, the screw can be moved toward the stuffing box 100 or away from the stuffing box 100, so that the glue injection head 3 can be smoothly assembled at the glue injection hole 110 with the assistance of the screw.
[0044] In other embodiments, the dispensing head 3 is threadedly connected to the connecting part 1, and the abutting part 2 is threadedly connected to the connecting part 1, which can further improve the ease of assembly.
[0045] In this embodiment, the connecting part 1 is a C-shaped flange. When the glue injection head 3 installed on the flange is connected to the glue injection hole 110 and the abutting part 2 abuts against the outer periphery of the stuffing box 100, there is a certain gap between the flange and the stuffing box 100. This gap can prevent the valve 200 structural components from interfering with the installation of the stuffing box sealing device.
[0046] Furthermore, such as Figure 1 As shown, the stuffing box sealing device in this embodiment also includes a hydraulic pump 6 and a connecting pipe 7. The hydraulic pump 6 is connected to the glue gun 4 through the connecting pipe 7.
[0047] In this embodiment, the hydraulic pump 6 is a high-pressure oil pump. The hydraulic pump 6 can effectively control the injection pressure, achieve uniform pressure and stable injection, and avoid air bubbles in the sealant caused by unstable injection pressure, which would affect the sealing effect of the stuffing box 100.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A stuffing box sealing device, characterized in that, The device includes a connecting part, an abutting part, a dispensing head, and a dispensing gun. The connecting part is located adjacent to the outer periphery of the stuffing box. The abutting part and the dispensing head are both connected to the connecting part, and the abutting part and the dispensing head are located on opposite sides of the stuffing box along its radial direction. The outer periphery of the stuffing box has a dispensing hole that communicates with the leakage area of the stuffing box, directly opposite the dispensing head. The abutting part is pressed against the outer periphery of the stuffing box. The dispensing head extends into the dispensing hole and remains fixed relative to the stuffing box. The dispensing gun is connected to the dispensing head, and the dispensing gun can inject sealant into the leakage area of the stuffing box through the dispensing head to seal the stuffing box.
2. The stuffing box sealing device according to claim 1, characterized in that, It also includes a glue injection valve, through which the glue injection gun is connected to the glue injection head.
3. The stuffing box sealing device according to claim 2, characterized in that, The glue injection head has a first external thread at one end facing the glue injection hole, and the inner wall of the glue injection hole has a first internal thread. The glue injection head is threadedly connected to the glue injection hole.
4. The stuffing box sealing device according to claim 3, characterized in that, The glue injection valve is threadedly connected to the glue injection head.
5. The stuffing box sealing device according to claim 3, characterized in that, The glue gun is threadedly connected to the glue injection valve.
6. The stuffing box sealing device according to claim 1, characterized in that, The distance between the contact portion and / or the dispensing head and the filler box is adjustable.
7. The stuffing box sealing device according to claim 6, characterized in that, The connecting part has a first threaded hole corresponding to the injection head. The first threaded hole is coaxial with the injection hole. The injection head has a second external thread that mates with the first threaded hole. The injection head is screwed and fixed to the first threaded hole. The injection head can be moved into the injection hole by screwing and abuts against the outer periphery of the stuffing box.
8. The stuffing box sealing device according to claim 7, characterized in that, The outer periphery of the end of the dispensing head away from the stuffing box has at least one set of snap-fit portions, each set of snap-fit portions having two snap-fit surfaces arranged opposite to each other, the two snap-fit surfaces being parallel to each other.
9. The stuffing box sealing device according to claim 6, characterized in that, The connecting part has a second threaded hole corresponding to the abutting part. The abutting part is a screw. The screw is screwed and fixed to the second threaded hole. The screw can be moved by screwing to abut against the outer periphery of the stuffing box.
10. The stuffing box sealing device according to any one of claims 1 to 9, characterized in that, It also includes a hydraulic pump and a connecting pipe, the hydraulic pump being connected to the glue gun via the connecting pipe.