Two-half combined packing gland

Abstract

The utility model relates to the technical field of combined packing glands, in particular to a two-half combined packing gland which comprises an upper packing gland main body and a lower packing gland main body, a plurality of upper and lower gland combined bolts are movably mounted on the upper packing gland main body and the lower packing gland main body, and a nut is fixedly mounted at the bottom of the lower packing gland main body. A locking structure is arranged on the upper and lower gland combined bolt and comprises inserting holes formed in the upper and lower gland combined bolt and the nut, a clamping block is movably installed at one end of the inserting rod, and a spring connected with the nut is wound on the inserting rod. Through the arrangement of the locking structure, the stability of the upper and lower gland combined bolt can be improved, the upper and lower gland combined bolt is prevented from loosening due to vibration, the upper and lower gland combined bolt can be locked, and the upper and lower gland combined bolt cannot rotate reversely along with vibration to be loosened; and leakage of mechanical equipment such as a slurry pump or a water pump caused by loosening of the upper packing gland main body and the lower packing gland main body is avoided.

Description

Technical Field

[0001] The utility model relates to a two - half combined stuffing gland, in particular to a two - half combined stuffing gland, belonging to the technical field of combined stuffing glands. Background Art

[0002] The stuffing gland is a common part in seals. By tightening the stuffing gland bolts, the stuffing in the stuffing cavity makes close contact between the shaft and the stuffing cavity, playing a good sealing role. Therefore, it is widely used in mechanical equipment (such as the seals of slurry pumps, agitators, and water pumps). In order to facilitate the disassembly of the gland, most of them are two - half combined glands connected into a whole through combined bolts. When in use, only need to combine the two - half combined stuffing gland and install it on the shaft, and then tighten the upper and lower gland combined bolts, without disassembling the impeller or bearing housing at both ends of the stuffing gland.

[0003] The existing two - half combined stuffing gland has a single structure. Although this method is relatively simple to disassemble, its stability is not high only by tightening with bolts. For some machinery with high vibration frequencies, long - term vibration may cause the bolts to loosen, resulting in the loosening and opening of the two glands, causing leakage in mechanical equipment such as slurry pumps or water pumps.

[0004] Therefore, it is urgent to improve a two - half combined stuffing gland to solve the above - mentioned problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a two - half combined stuffing gland. Through the setting of the locking structure, the stability of the upper and lower gland combined bolts can be improved, avoiding loosening caused by vibration. After the upper stuffing gland main body covers the lower stuffing gland main body, first pull the insertion rod on the nut outwards until the outside of the nut, and then use the upper and lower gland combined bolts to screw onto the upper stuffing gland main body and the lower stuffing gland main body. When the jack on the upper and lower gland combined bolts is screwed to the position coinciding with the jack on the nut, release the insertion rod so that it penetrates through the upper and lower gland combined bolts and the nut under the elastic action of the spring until the other side of the nut. Finally, rotate the block to a state perpendicular to the angle of the jack, which can lock the upper and lower gland combined bolts, preventing the upper and lower gland combined bolts from reversing due to vibration and loosening, and avoiding leakage of mechanical equipment such as slurry pumps or water pumps caused by the loosening of the upper stuffing gland main body and the lower stuffing gland main body.

[0006] To achieve the above - mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A two - half combined packing gland, comprising an upper packing gland main body and a lower packing gland main body. A plurality of upper and lower gland combined bolts are movably installed on the upper packing gland main body and the lower packing gland main body. A nut is fixedly installed at the bottom of the lower packing gland main body. A locking structure is arranged on the upper and lower gland combined bolts. The locking structure includes insertion holes opened on the upper and lower gland combined bolts and the nut. An insertion rod is installed in the insertion hole. One end of the insertion rod is movably installed with a clamping block. A spring connected to the nut is wound around the insertion rod.

[0008] Preferably, a plurality of tooth grooves are opened at one end of the upper and lower gland combined bolts and the insertion rod.

[0009] Preferably, a plurality of limiting blocks are fixedly installed at the bottom of the upper packing gland main body, and a plurality of limiting holes for cooperating with the limiting blocks are opened on the lower packing gland main body.

[0010] Preferably, a plurality of sealing strips are arranged on both sides of the upper packing gland main body and the lower packing gland main body.

[0011] Preferably, screws connected to the upper packing gland main body and the lower packing gland main body are installed on a plurality of the sealing strips.

[0012] Preferably, anti - slip lines are opened on the arc - shaped inner rings of the upper packing gland main body and the lower packing gland main body, and rubber pads are fixedly installed on the planes where the upper packing gland main body and the lower packing gland main body are in contact.

[0013] Preferably, a plurality of elastic gaskets connected to the upper and lower gland combined bolts are fixedly installed at the top of the upper packing gland main body.

[0014] The utility model has at least the following beneficial effects:

[0015] Through the setting of the locking structure, the stability of the upper and lower gland combined bolts can be improved, and it can be avoided that they become loose due to vibration. After the upper packing gland main body covers the lower packing gland main body, first pull the insertion rod on the nut outwards until the outside of the nut, and then use the upper and lower gland combined bolts to screw onto the upper packing gland main body and the lower packing gland main body. When the insertion hole on the upper and lower gland combined bolts is screwed to coincide with the insertion hole on the nut, release the insertion rod so that it penetrates through the upper and lower gland combined bolts and the nut under the elastic action of the spring until the other side of the nut. Finally, rotate the clamping block to a state perpendicular to the angle of the insertion hole, which can lock the upper and lower gland combined bolts and prevent them from reversing due to vibration and becoming loose, avoiding leakage of mechanical equipment such as slurry pumps or water pumps caused by the loosening of the upper packing gland main body and the lower packing gland main body. Description of the Drawings

[0016] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the jack of the present utility model;

[0019] Figure 3 is a schematic diagram of the plug rod of the present utility model;

[0020] Figure 4 is a schematic diagram of the limiting block of the present utility model;

[0021] Figure 5 is a schematic diagram of the limiting hole of the present utility model.

[0022] In the figure, 1 is the upper packing gland main body; 2 is the lower packing gland main body; 3 is the combined bolt for upper and lower gland; 4 is the nut; 5 is the locking structure; 6 is the jack; 7 is the plug rod; 8 is the clamping block; 9 is the spring; 10 is the tooth groove; 11 is the limiting block; 12 is the limiting hole; 13 is the sealing strip; 14 is the screw; 15 is the anti-slip pattern; 16 is the rubber pad; 17 is the elastic gasket. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1 - 5 shown, an embodiment of a two-half combined packing gland provided in this embodiment.

[0025] A two - half combined stuffing gland, comprising an upper stuffing gland main body 1 and a lower stuffing gland main body 2. A plurality of upper and lower gland combined bolts 3 are movably installed on the upper stuffing gland main body 1 and the lower stuffing gland main body 2. A nut 4 is fixedly installed at the bottom of the lower stuffing gland main body 2. A locking structure 5 is arranged on the upper and lower gland combined bolts 3. The locking structure 5 includes insertion holes 6 opened on the upper and lower gland combined bolts 3 and the nut 4. An insertion rod 7 is installed in the insertion hole 6. One end of the insertion rod 7 is movably installed with a clamping block 8. A spring 9 connected to the nut 4 is wound around the insertion rod 7. Through the setting of the locking structure 5, the stability of the upper and lower gland combined bolts 3 can be improved, and it can be prevented from loosening due to vibration. After the upper stuffing gland main body 1 covers the lower stuffing gland main body 2, first pull the insertion rod 7 on the nut 4 outwards until the outside of the nut 4, and then use the upper and lower gland combined bolts 3 to screw onto the upper stuffing gland main body 1 and the lower stuffing gland main body 2. When the insertion hole 6 on the upper and lower gland combined bolts 3 is screwed to coincide with the insertion hole 6 on the nut 4, release the insertion rod 7 so that it penetrates through the upper and lower gland combined bolts 3 and the nut 4 under the elastic action of the spring 9 until the other side of the nut 4. Finally, rotate the clamping block 8 to a state perpendicular to the angle of the insertion hole 6, and the upper and lower gland combined bolts 3 can be locked, and it will not reverse due to vibration and cause the upper and lower gland combined bolts 3 to loosen, avoiding leakage of mechanical equipment such as slurry pumps or water pumps due to loosening of the upper stuffing gland main body 1 and the lower stuffing gland main body 2.

[0026] A plurality of tooth grooves 10 are opened at one end of the upper and lower gland combined bolts 3 and the insertion rod 7. Through the setting of the tooth grooves 10, the friction force at one end of the upper and lower gland combined bolts 3 and the insertion rod 7 can be increased, so that it is not easy for the hand to loosen when the operator rotates and pulls the upper and lower gland combined bolts 3 and the insertion rod 7, facilitating the disassembly and installation of the upper and lower gland combined bolts 3 and the insertion rod 7.

[0027] A plurality of limiting blocks 11 are fixedly installed at the bottom of the upper stuffing gland main body 1. A plurality of limiting holes 12 for cooperating with the limiting blocks 11 are opened on the lower stuffing gland main body 2. Through the setting of the limiting blocks 11 and the limiting holes 12, when the upper stuffing gland main body 1 and the lower stuffing gland main body 2 are engaged, directly insert the limiting blocks 11 into the limiting holes 12, which can quickly and accurately engage the upper stuffing gland main body 1 and the lower stuffing gland main body 2, and it will not cause the upper and lower gland combined bolts 3 to be unable to be screwed due to the position deviation between the two.

[0028] A plurality of sealing strips 13 are arranged on both sides of the upper stuffing gland main body 1 and the lower stuffing gland main body 2. Through the setting of the sealing strips 13, the gap between the upper stuffing gland main body 1 and the lower stuffing gland main body 2 and the mechanical equipment can be sealed, preventing water from seeping into the equipment through the gap and thus causing corrosion.

[0029] Screws 14 connecting the upper packing gland body 1 and the lower packing gland body 2 are installed on multiple sealing strips 13. Through the arrangement of the screws 14, the sealing strips 13 can be disassembled, which is convenient for disassembly and replacement when the sealing strips 13 are damaged.

[0030] Anti-slip patterns 15 are provided on the arc-shaped inner rings of the upper packing gland body 1 and the lower packing gland body 2, and rubber pads 16 are fixedly installed on the planes where the upper packing gland body 1 and the lower packing gland body 2 are in contact. Through the arrangement of the anti-slip patterns 15 and the rubber pads 16, the friction force on the inner walls of the upper packing gland body 1 and the lower packing gland body 2 can be increased, making the fastened mechanical equipment more stable. The rubber pads 16 can prevent damage to the upper packing gland body 1 and the lower packing gland body 2 caused by excessive friction.

[0031] Multiple elastic gaskets 17 connected to the upper and lower gland combination bolts 3 are fixedly installed on the top of the upper packing gland body 1. Through the arrangement of the elastic gaskets 17, by increasing the friction force between the upper and lower gland combination bolts 3 and the connecting parts, the elastic gaskets 17 can effectively prevent the upper and lower gland combination bolts 3 from sliding or being damaged under the action of torque, ensuring the stability of the connection.

[0032] In this embodiment, as Figures 1 - 5 shown, the working process of a split-type packing gland provided in this embodiment is as follows:

[0033] After the upper packing gland body 1 covers the lower packing gland body 2, first pull the insertion rod 7 on the nut 4 outwards until the outside of the nut 4, and then use the upper and lower gland combination bolts 3 to screw onto the upper packing gland body 1 and the lower packing gland body 2. When the jack 6 on the upper and lower gland combination bolts 3 is screwed to coincide with the jack 6 on the nut 4, release the insertion rod 7 so that it penetrates through the upper and lower gland combination bolts 3 and the nut 4 under the elastic action of the spring 9 until the other side of the nut 4. Finally, rotate the block 8 to a position perpendicular to the angle of the jack 6, which can lock the upper and lower gland combination bolts 3 and prevent the upper and lower gland combination bolts 3 from reversing due to vibration and loosening, avoiding leakage of mechanical equipment such as slurry pumps or water pumps caused by the loosening of the upper packing gland body 1 and the lower packing gland body 2.

[0034] In summary, in this embodiment, for a two - half combined stuffing gland according to this embodiment, through the setting of the tooth groove 10, the friction force between the upper and lower gland combined bolts 3 and one end of the inserting rod 7 can be increased, so that it is not easy for the hand to loosen when rotating and pulling the upper and lower gland combined bolts 3 and the inserting rod 7, facilitating the disassembly and installation of the upper and lower gland combined bolts 3 and the inserting rod 7. Through the setting of the limiting block 11 and the limiting hole 12, when the upper stuffing gland main body 1 is engaged with the lower stuffing gland main body 2, the limiting block 11 can be directly inserted into the limiting hole 12, enabling the rapid and accurate engagement of the upper stuffing gland main body 1 and the lower stuffing gland main body 2, and preventing the upper and lower gland combined bolts 3 from being unable to be screwed due to the position deviation between the two. Through the setting of the sealing strip 13, the gap between the upper stuffing gland main body 1 and the lower stuffing gland main body 2 and the mechanical equipment can be sealed, preventing water from seeping into the equipment through the gap and causing corrosion. Through the setting of the screw 14, the sealing strip 13 can be disassembled, facilitating the disassembly and replacement when the sealing strip 13 is damaged. Through the setting of the anti - slip pattern 15 and the rubber pad 16, the friction force on the inner walls of the upper stuffing gland main body 1 and the lower stuffing gland main body 2 can be increased, making the fastened mechanical equipment more stable. The rubber pad 16 can prevent the upper stuffing gland main body 1 and the lower stuffing gland main body 2 from being damaged due to excessive friction. Through the setting of the elastic gasket 17, by increasing the friction force between the upper and lower gland combined bolts 3 and the connecting piece, the elastic gasket 17 can effectively prevent the upper and lower gland combined bolts 3 from sliding or being damaged under the action of torque, ensuring the stability of the connection.

[0035] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open - ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0036] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non - exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0037] The above description shows and describes several preferred embodiments of the present utility model. However, as previously mentioned, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any alterations and changes made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A two - half combined stuffing gland, comprising an upper stuffing gland main body (1) and a lower stuffing gland main body (2). A plurality of upper and lower gland combination bolts (3) are movably installed on the upper stuffing gland main body (1) and the lower stuffing gland main body (2). A nut (4) is fixedly installed at the bottom of the lower stuffing gland main body (2), and it is characterized in that: A locking structure (5) is provided on the upper and lower gland combination bolt (3). The locking structure (5) includes insertion holes (6) formed in the upper and lower gland combination bolt (3) and the nut (4). A plug rod (7) is installed in the insertion hole (6). One end of the plug rod (7) is movably installed with a clamping block (8). A spring (9) connected to the nut (4) is wound around the plug rod (7).

2. The split-type stuffing box gland according to claim 1, characterized in that: Multiple tooth grooves (10) are formed at one end of the upper and lower gland combination bolt (3) and the plug rod (7).

3. The split-type stuffing box gland according to claim 1, wherein: A plurality of limiting blocks (11) are fixedly installed at the bottom of the upper packing gland body (1). A plurality of limiting holes (12) for cooperating with the limiting blocks (11) are formed in the lower packing gland body (2).

4. A split combined stuffing gland according to claim 1, characterized in that: A plurality of sealing strips (13) are provided on both sides of the upper packing gland body (1) and the lower packing gland body (2).

5. The split-type stuffing gland according to claim 4, characterized in that: Screws (14) connected to the upper packing gland body (1) and the lower packing gland body (2) are installed on the plurality of sealing strips (13).

6. The split-type stuffing box gland according to claim 1, characterized in that: Anti-slip patterns (15) are formed on the arc-shaped inner rings of the upper packing gland body (1) and the lower packing gland body (2). Rubber pads (16) are fixedly installed on the planes where the upper packing gland body (1) and the lower packing gland body (2) are in contact with each other.

7. The two-half combined stuffing gland according to claim 1, characterized in that: A plurality of elastic gaskets (17) connected to the upper and lower gland combination bolt (3) are fixedly installed at the top of the upper packing gland body (1).

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