Packing gland sealing device

Abstract

The utility model discloses a packing gland sealing device, which relates to the technical field of water pumps, and comprises an ejector rod and a stabilizing sleeve, the first end of the ejector rod is used for penetrating through a broken wire hole of a packing gland and is fixedly connected with the packing gland; the first end of the stabilizing sleeve is used for being in sliding connection with the second end of the ejector rod and can keep the position after sliding, the second end of the stabilizing sleeve is used for abutting against the bearing box gland so that the ejector rod can abut against the packing gland, the structure is simple, use is convenient, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a packing gland sealing device. Background Art

[0002] Water pumps are essential equipment in industries such as industry, agriculture, and construction. Their proper operation directly impacts the efficiency and safety of the entire system. Among the many components of a water pump, the packing gland, while seemingly inconspicuous, plays a crucial role, directly impacting the pump's sealing and stability. The packing gland's primary function is to seal the pump's rotating shaft, preventing fluid leakage while also protecting the internal mechanical seal from the external environment. It compresses the packing (typically materials such as graphite or carbon fiber) to create a tight seal, ensuring the pump's proper operation even under high pressure or corrosive media. Over time, the packing gland often loosens or wears, leading to packing leakage. In these cases, the operator must tighten the packing gland to control leakage. However, during operation, due to leaks and corrosion, operators can easily break the packing gland's fastening bolts while adjusting the tightness. Breaking the packing gland bolts requires the pump to be shut down for inspection and repair, otherwise it will affect its safe operation.

[0003] Currently, we have the following methods to deal with broken packing gland bolts: 1. If the broken wire extends too far beyond the pump bottom hole, you can use a pipe wrench to clamp the broken wire and twist it out of the pump body bottom hole. 2. If the broken wire extends too short beyond the pump bottom hole, use electric welding to weld a section of the bolt to the broken wire and continue using it, or use a pipe wrench to remove it. 3. If the broken wire is flush with the pump bottom hole and the broken wire is in the pump cover, you need to disassemble the cover and lift it to a suitable position. Use a pistol drill to drill out the broken wire and re-tap it. If the broken wire is in the lower end cover of the pump body, the actual situation is often because the position is too narrow to use a pistol drill, resulting in the broken wire being unable to be removed, and the pump cannot be operated, which has a great impact on production. Therefore, studying how to ensure the smooth operation of the pump in this case of broken wires has become a top priority. Utility Model Content

[0004] The purpose of the utility model is to provide a packing gland sealing device to solve the problems existing in the above-mentioned prior art, which has a simple structure, is easy to use and effectively improves operating efficiency.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The utility model provides a packing gland sealing device, comprising: a push rod and a stabilizing sleeve, wherein the first end of the push rod is used to pass through the broken wire hole of the packing gland and is fixedly connected to the packing gland; the first end of the stabilizing sleeve is used to be slidably connected to the second end of the push rod and can maintain the position after sliding, and the second end of the stabilizing sleeve is used to tighten the bearing box gland so that the push rod can tighten the packing gland.

[0007] Preferably, the push rod is a stainless steel through-bolt, the stabilizing sleeve is a hollow structure, and the inner hole wall of the stabilizing sleeve is provided with an internal thread, the second end of the push rod is used to be threadedly connected to the internal thread of the stabilizing sleeve, and rotating the stabilizing sleeve can adjust the distance between the first end of the push rod and the stabilizing sleeve.

[0008] Preferably, a positioning nut is further included, wherein the positioning nut is used to be threadedly connected to the push rod and contact the stabilizing sleeve to locate the relative positions of the push rod and the stabilizing sleeve.

[0009] Preferably, an adjusting nut is further included, which is used to be threadedly connected to the push rod and is arranged on a side of the packing gland close to the stabilizing sleeve to tighten the packing gland.

[0010] Preferably, a locking nut is further included, wherein the locking nut is used for being threadedly connected to the push rod and is arranged on a side of the packing gland away from the stabilizing sleeve.

[0011] Preferably, one end of the stabilizing sleeve used for tightening the bearing box cover is a trapezoidal stabilizing head, and the end of the trapezoidal stabilizing head with a larger cross-sectional area is used for contacting the bearing box cover.

[0012] Preferably, the push rod, the stabilizing sleeve, the positioning nut, the adjusting nut and the locking nut are all made of stainless steel.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The utility model provides a packing gland sealing device, which is applied to the packing gland wire breakage treatment of a water pump, so as to avoid the packing gland bolt being broken at the bottom of the pump body, which is difficult or impossible to handle, resulting in the water pump being unable to operate or even being scrapped. The utility model passes the packing gland wire breakage hole through the packing gland and is tightly fixed with the packing gland, and the relative position of the stabilizing sleeve and the push rod is adjusted, so that the stabilizing sleeve is away from the end of the push rod and is tightly pressed against the bearing box cover. The utility model has a simple structure, is easy to use, improves the working efficiency, eliminates many safety hazards in the old operation method, has good promotion value, and is widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of the packing gland sealing device provided by the utility model;

[0017] In the figure: 1. Stabilizing sleeve; 2. Push rod; 3. Adjusting nut; 4. Locking nut; 5. Positioning nut; 6. Packing gland. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The purpose of the utility model is to provide a packing gland sealing device to solve the problems existing in the above-mentioned prior art, which has a simple structure, is easy to use and effectively improves operating efficiency.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] The utility model provides a packing gland 6 sealing device, such as Figure 1 The cam 1 is provided with a screw thread lock 2, and the screw thread lock 2 is provided with a screw thread lock 2, and the screw thread lock 2 is provided with a screw thread lock 2. As shown in FIG, it includes: a push rod 2 and a stabilizing sleeve 1, the first end of the push rod 2 is used to pass through the broken wire hole of the stuffing box cover 6 and be fixedly connected to the stuffing box cover 6; the first end of the stabilizing sleeve 1 is used to be slidably connected to the second end of the push rod 2 and can maintain the position after sliding, and the second end of the stabilizing sleeve 1 is used to tighten the bearing box cover so that the push rod 2 can tighten the stuffing box cover 6. By applying the device to the broken wire treatment of the stuffing box cover 6 of the water pump, it is avoided that the stuffing box cover 6 bolts are broken at the bottom of the pump body, which is difficult or impossible to handle, resulting in the water pump being unable to operate or even being scrapped. By passing the push rod 2 through the broken wire hole of the stuffing box cover 6 and tightening and fixing it with the stuffing box cover 6, the relative position of the stabilizing sleeve 1 and the push rod 2 is adjusted and the stabilizing sleeve 1 is tightened against the bearing box cover with one end away from the push rod 2. The structure is simple, easy to use, improves the working efficiency, eliminates many safety hazards in the old operation method, has good promotion value, and is widely used.

[0022] In a preferred embodiment, the push rod 2 is a stainless steel through-bolt, the stabilizing sleeve 1 is a hollow structure, and the inner hole wall of the stabilizing sleeve 1 is provided with an internal thread. The second end of the push rod 2 is used to be threadedly connected to the internal thread of the stabilizing sleeve 1. Rotating the stabilizing sleeve 1 can adjust the distance between the first end of the push rod 2 and the stabilizing sleeve 1. The structure is simple and easy to use.

[0023] In a preferred embodiment, the packing gland 6 sealing device also includes a positioning nut 5, which is used to be threadedly connected to the push rod 2 and in contact with the stabilizing sleeve 1 to position the relative positions of the push rod 2 and the stabilizing sleeve 1. The structure is simple and effectively ensures the relative positions of the push rod 2 and the stabilizing sleeve 1.

[0024] In a preferred embodiment, the sealing device of the packing gland 6 also includes an adjusting nut 3, which is used to be threadedly connected to the push rod 2 and is arranged on the side of the packing gland 6 close to the stabilizing sleeve 1 to tighten the packing gland 6. It has a simple structure and is easy to use.

[0025] In a preferred embodiment, the packing gland 6 sealing device also includes a locking nut 4, which is used to be threadedly connected to the top rod 2 and is arranged on the side of the packing gland 6 away from the stabilizing sleeve 1. The thickness of the locking nut 4 is half or one-quarter of that of a normal nut. The specific thickness is determined according to actual conditions to ensure that the locking nut 4 will not be sandwiched between the pump body and the packing gland 6 due to its thickness. After locking, it prevents the entire device from vibrating and falling off as the pump runs for a long time.

[0026] In a preferred embodiment, one end of the stabilizing sleeve 1 used to tighten the bearing box cover is a trapezoidal stabilizing head, and the end with a larger cross-sectional area of ​​the trapezoidal stabilizing head is used to contact the bearing box cover, thereby increasing the contact area and effectively ensuring stability in use.

[0027] In a preferred embodiment, the push rod 2, the stabilizing sleeve 1, the positioning nut 5, the adjusting nut 3 and the locking nut 4 are all made of stainless steel to prevent rust.

[0028] Specific operation: As shown in 1, first install the adjusting nut 3 and the positioning nut 5 on the push rod 2, then screw the push rod 2 into the stabilizing sleeve 1, at this time put the whole device between the packing gland and the bearing box gland, pass the push rod 2 through the packing gland wire hole and then install the locking nut 4 on the push rod 2 on the back of the packing gland, as shown in the figure. Figure 1 As shown, at this time, rotate the push rod 2 to adjust the overall length of the entire device, press the stabilizing sleeve trapezoidal seat against the bearing gland, and screw the positioning nut 5 to the junction of the stabilizing sleeve 1 and the push rod 2 to tighten it. At this time, rotate the adjusting nut 3 to squeeze and tighten the packing gland, and tighten the remaining unbroken screws of the packing gland evenly. After the packing gland is tightened in place, lock it with the locking nut 4 on the rear side to prevent the entire device from falling off due to long-term vibration as the pump body runs. In this way, the packing gland seal is completed.

[0029] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A packing gland sealing device, characterized in that: include: A push rod, the first end of which is used to pass through the wire breaking hole of the packing gland and be fixedly connected to the packing gland; as well as A stabilizing sleeve, wherein the first end of the stabilizing sleeve is used for sliding connection with the second end of the push rod and can maintain the position after sliding, and the second end of the stabilizing sleeve is used for tightening the bearing box cover so that the push rod tightens the packing cover.

2. The packing gland sealing device according to claim 1, characterized in that: The push rod is a stainless steel through-bolt, the stabilizing sleeve is a hollow structure, and the inner hole wall of the stabilizing sleeve is provided with an internal thread. The second end of the push rod is used to be threadedly connected to the internal thread of the stabilizing sleeve, and rotating the stabilizing sleeve can adjust the distance between the first end of the push rod and the stabilizing sleeve.

3. The packing gland sealing device according to claim 2, characterized in that: It also includes a positioning nut, which is used to be threadedly connected to the push rod and contact the stabilizing sleeve to locate the relative positions of the push rod and the stabilizing sleeve.

4. The packing gland sealing device according to claim 3, characterized in that: It also includes an adjusting nut, which is used to be threadedly connected to the push rod and is arranged on a side of the packing gland close to the stabilizing sleeve to tighten the packing gland.

5. The packing gland sealing device according to claim 4, characterized in that: It also includes a locking nut, which is used for threaded connection with the push rod and is arranged on a side of the packing gland away from the stabilizing sleeve.

6. The packing gland sealing device according to claim 5, characterized in that: One end of the stabilizing sleeve used for tightening the bearing box cover is a trapezoidal stabilizing head, and the end of the trapezoidal stabilizing head with a larger cross-sectional area is used for contacting the bearing box cover.

7. The packing gland sealing device according to claim 6, characterized in that: The push rod, the stabilizing sleeve, the positioning nut, the adjusting nut and the locking nut are all made of stainless steel.

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