Pressure vessel with protection mechanism

Abstract

The utility model relates to the technical field of pressure vessels, in particular to a pressure vessel with a protection mechanism, which comprises a pressure water tank and a conveying pipeline, screw holes are reserved on flanges of the pressure water tank and the conveying pipeline, bolts are movably inserted into the screw holes, nuts are arranged on the bolts in a threaded connection manner, and the pressure water tank and the conveying pipeline are in threaded connection. A nut fixing sleeve is fixed to the surface of the end, away from the pressure water tank, of a flange of the conveying pipeline, a nut of a bolt is movably inserted into the nut fixing sleeve, a screw of the bolt is sleeved with a base plate, and a telescopic clamping block mounting groove is formed in the surface of the base plate. The anti-loose bolt has the beneficial effects that the anti-loose protection function of the bolt and the nut is achieved, when a conveying pipeline needs to be disassembled actively, the anti-loose protection can be relieved only by enabling the telescopic clamping block to completely retract into the telescopic clamping block installation groove, and the anti-loose protection function between the bolt and the nut is achieved no longer through too large friction force between threads; and the situation that the threads are excessively abraded due to the anti-loosening protection function is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessels, in particular to a pressure vessel with a protection mechanism. Background Art

[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. Among them, a pressure water tank is a very common pressure vessel. During the use of the pressure water tank, water is stored in the pressure water tank and pressurized. After pressurization, it is transported to high-rise buildings through a delivery pipeline, thus solving the problem of insufficient water pressure and inability to deliver water to high-rise buildings. A major problem that has plagued pressure water tanks for a long time is leakage at the connection between the pressure water tank and the delivery water pipe. This situation usually occurs due to loose connection between the flange of the pressure water tank and the delivery water pipe.

[0003] In the prior art, the connection between the flange of the pressure water tank and the flange of the water delivery pipe is usually that a through hole is reserved on the flanges of the two, a bolt is inserted in the through hole, a nut is screwed on the bolt, and the flanges between the two are connected by tightening the nut on the bolt. At the same time, metal gaskets are sleeved on one end of the bolt close to the nut and the other end close to the nut. The metal gasket is squeezed to generate a rebound force, and the rebound force acts on the nut so that the thread between the nut and the bolt is compressed, generating a large friction force to provide an anti-loosening protection function for the threaded connection between the bolt and the nut.

[0004] However, during the use of the pressure water pipe, it is inevitable to frequently disassemble the water delivery pipe to inspect and repair the water pump and other devices installed inside the pressure water tank, or to clean the inside of the pressure water tank. The anti-loosening measures between the bolts and nuts in the prior art are achieved by increasing the friction between the threads. This results in greater wear on the threads between the nuts and bolts under greater friction when the nuts are disassembled and assembled. When the wear is too great, thread slippage will occur. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure container with a protection mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure vessel with a protection mechanism, comprising: a pressure water tank and a delivery pipeline, screw holes are reserved on the flanges of the pressure water tank and the delivery pipeline, bolts are movably inserted in the screw holes, nuts are arranged on the bolts through threaded connection, a nut fixing sleeve is fixed on the surface of the end of the flange of the delivery pipeline away from the pressure water tank, the nut of the bolt is movably inserted in the nut fixing sleeve, a pad is sleeved on the screw rod of the bolt, a telescopic card installation groove is opened on the surface of the pad, a telescopic card block is movably inserted in the telescopic card block installation groove, a spring is fixed between one end of the telescopic card block extending into the telescopic card block installation groove and the inner wall of the telescopic card block installation groove, and a fixed card block is fixed on the surface of the nut.

[0007] Preferably, the nut fixing sleeve is an annular cylindrical structure, and the shape and size of the inner ring of the nut fixing sleeve match the shape and size of the nut of the bolt.

[0008] Preferably, the gasket is an annular plate structure, the inner ring shape and size of the gasket are the same as the rod body of the bolt, one end of the gasket is against the end surface of the flange of the pressure water tank away from the delivery pipeline, and the nut is arranged on the other end of the gasket.

[0009] Preferably, a group of telescopic block mounting grooves are provided on the surface of the pad, and several groups of fixed blocks are provided on the surface of the nut, and the several groups of fixed blocks are all provided at one end of the nut close to the pad, and the several groups of fixed blocks are distributed circumferentially about the axis of the bolt.

[0010] Preferably, an end of the telescopic card block extending out of the telescopic card block mounting slot is provided with an inclined surface, and an inclined surface is also provided on the surface of the fixed card block, and the inclined surface of the fixed card block is in the opposite direction to the inclined surface of the telescopic card block.

[0011] Preferably, a lever window is provided on the side of the pad, a lever is slidably connected to the lever window, one end of the lever is fixed on the surface of the telescopic block, and the other end of the lever extends out of the lever window.

[0012] Preferably, two groups of positioning rods are fixed to one end of the pad, and two groups of positioning grooves are provided near each screw hole on the surface of the pressure water tank, and the two groups of positioning rods are movably inserted in the two groups of positioning grooves respectively.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a pressure vessel with a protection mechanism. After the bolt is installed, the nut of the bolt is inserted into the nut fixing sleeve, so that the bolt cannot rotate. After the nut is tightened on the pad, the nut is fine-tuned in the tightening direction so that one end of a certain group of fixed clamps is against the surface of one end of the telescopic clamp extending out of the telescopic clamp installation groove, so that the telescopic clamp has a limiting effect on the fixed clamp, so that the fixed clamp cannot move in the direction that causes the nut to loosen, and further the nut cannot rotate in the loosening direction, thereby realizing the anti-loosening protection function of the bolt and the nut. When it is necessary to actively dismantle the conveying pipeline, the anti-loosening protection can be released by simply retracting the telescopic clamp completely into the telescopic clamp installation groove. The anti-loosening protection function between the bolt and the nut is no longer realized by relying on excessive friction between the threads, thereby avoiding the situation where the anti-loosening protection function causes excessive wear of the threads. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the lever;

[0020] Figure 6 for Figure 5 A magnified schematic diagram of the structure at C in the middle;

[0021] Figure 7 It is a schematic diagram of the cross-sectional structure of the positioning rod;

[0022] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point D in the middle.

[0023] In the figure: a pressure water tank 1, a delivery pipeline 2, bolts 3, nuts 4, a nut fixing sleeve 5, a backing plate 6, a telescopic card block mounting groove 7, a telescopic card block 8, a fixed card block 9, a spring 10, a lever window 11, a lever 12, a positioning groove 13, and a positioning rod 14. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figures 1 to 8 The utility model provides a technical solution: a pressure vessel with a protection mechanism, comprising: a pressure water tank 1 and a delivery pipeline 2, screw holes are reserved on the flanges of the pressure water tank 1 and the delivery pipeline 2, bolts 3 are movably inserted in the screw holes, nuts 4 are arranged on the bolts 3 through threaded connection, a nut fixing sleeve 5 is fixed on the surface of the end of the flange of the delivery pipeline 2 away from the pressure water tank 1, the nut of the bolt 3 is movably inserted in the nut fixing sleeve 5, a pad 6 is sleeved on the screw rod of the bolt 3, a telescopic card block mounting groove 7 is opened on the surface of the pad 6, a telescopic card block mounting groove 7 is movably inserted in the telescopic card block mounting groove 7, and a telescopic card block 8 is fixed between one end of the telescopic card block 8 extending into the telescopic card block mounting groove 7 and the inner wall of the telescopic card block mounting groove 7. Spring 10, a fixed block 9 is fixed on the surface of the nut 4, the nut fixing sleeve 5 is an annular column structure, the inner ring shape and size of the nut fixing sleeve 5 match the shape and size of the nut of the bolt 3, the pad 6 is an annular plate structure, the inner ring shape and size of the pad 6 are the same as the rod body of the bolt 3, one end of the pad 6 is against the end surface of the flange of the pressure water tank 1 away from the delivery pipe 2, the nut 4 is arranged on the other end of the pad 6, a group of telescopic block mounting grooves 7 are arranged on the surface of the pad 6, and several groups of fixed blocks 9 are arranged on the surface of the nut 4, and several groups of fixed blocks 9 are arranged on the surface of the nut 4, and several groups of fixed blocks 9 are all arranged at one end of the nut 4 close to the pad 6, and at the same time, several groups of fixed blocks 9 are distributed circumferentially about the axis of the bolt 3.

[0026] The pressure vessel with a protection mechanism still uses the bolt 3 and the nut 4 to install the pressure water tank 1 and the conveying pipeline 2, but the anti-loosening protection mechanism has been changed. In the pressure vessel with a protection mechanism, after the bolt 3 is installed, the nut of the bolt 3 is inserted into the nut fixing sleeve 5, so that the bolt 3 cannot rotate. After the nut 4 is tightened on the backing plate 6, the nut 4 is fine-tuned in the tightening direction so that one end of a group of fixed clamps 9 is against the surface of the end of the telescopic clamp 8 extending out of the telescopic clamp installation groove 7, so that the telescopic clamp 8 has a limiting effect on the fixed clamp 9, so that the fixed clamp 9 cannot move in the direction that causes the nut 4 to loosen, and then the nut 4 cannot rotate in the loosening direction, thereby realizing the anti-loosening protection function of the bolt 3 and the nut 4. When it is necessary to actively dismantle the conveying pipeline 2, it is only necessary to completely retract the telescopic clamp 8 into the telescopic clamp installation groove 7 to release the anti-loosening protection. The anti-loosening protection function between the bolt 3 and the nut 4 is no longer achieved by relying on the excessive friction between the threads, thereby avoiding the situation where the anti-loosening protection function causes excessive wear of the threads.

[0027] Embodiment 2: On the basis of embodiment 1, in order to realize the state of controlling the telescopic card block 8 to retract and extend into the telescopic card block mounting groove 7, a spring 10 is fixed between one end of the telescopic card block 8 extending into the telescopic card block mounting groove 7 and the inner wall of the telescopic card block mounting groove 7, a lever window 11 is provided on the side of the pad 6, a lever 12 is slidably connected in the lever window 11, one end of the lever 12 is fixed on the surface of the telescopic card block 8, and the other end of the lever 12 extends from the lever window 11, an inclined surface is provided on the end of the telescopic card block 8 extending out of the telescopic card block mounting groove 7, an inclined surface is also provided on the surface of the fixed card block 9, and the inclined surface of the fixed card block 9 is in the opposite direction to the inclined surface of the telescopic card block 8.

[0028] When the nut 4 is rotated in the tightening direction on the bolt 3, the fixed card block 9 can push the end of the telescopic card block 8 extending out of the telescopic card block mounting groove 7 into the telescopic card block mounting groove 7 through the inclined surface after contacting the telescopic card block 8, thereby preventing the telescopic card block 8 from affecting the tightening of the nut 4. When the telescopic card block 8 moves to the depth of the telescopic card block mounting groove 7, the spring 10 is compressed. Therefore, after the fixed card block 9 leaves the surface of the telescopic card block 8, the spring 10 will push one end of the telescopic card block 8 out of the telescopic card block mounting groove 7 again under the action of its own elasticity. When the end of the fixed card block 9 away from the nut 4 abuts against the surface of the pad 6, it means that the nut 4 has been tightened; when it is necessary to actively loosen the nut 4, the lever 12 can be moved in the lever window 11 in the direction away from the nut 4, thereby driving the telescopic card block 8 to move in the same direction, so that the telescopic card block 8 is completely retracted into the telescopic card block mounting groove 7, and the anti-loosening protection function of the nut 4 can be cancelled.

[0029] Embodiment 3: On the basis of embodiment 2, in order to prevent the pad 6 from rotating, two groups of positioning rods 14 are fixed to one end of the pad 6, and two groups of positioning grooves 13 are opened near each screw hole on the surface of the pressure water tank 1, and the two groups of positioning rods 14 are movably inserted in the two groups of positioning grooves 13 respectively.

[0030] After the bolt 3 is inserted into the screw hole, the pad 6 is placed on the bolt 3 and the two groups of positioning rods 14 fixed on the surface of the pad 6 are inserted into the two groups of positioning grooves 13 opened on the surface of the pressure water tank 1. The positioning grooves 13 play a role in circumferential positioning of the positioning rods 14 so that the pad 6 cannot rotate.

[0031] In actual use, the pressure vessel with a protection mechanism still uses the bolt 3 and the nut 4 to install the pressure water tank 1 and the delivery pipeline 2, but the anti-loosening protection mechanism is changed. In the pressure vessel with a protection mechanism, after the bolt 3 is installed, the nut of the bolt 3 is inserted into the nut fixing sleeve 5, so that the bolt 3 cannot rotate. After the nut 4 is tightened on the backing plate 6, the nut 4 is finely adjusted in the tightening direction, so that one end of a group of fixed clamps 9 is against the surface of one end of the telescopic clamp 8 extending out of the telescopic clamp installation groove 7, so that the telescopic clamp 8 is fixed. The fixed clamping block 9 has a limiting effect, which makes it impossible for the fixed clamping block 9 to move in the direction that would loosen the nut 4, and further makes it impossible for the nut 4 to rotate in the direction of loosening, thereby realizing the anti-loosening protection function of the bolt 3 and the nut 4. When it is necessary to actively dismantle the conveying pipeline 2, it is only necessary to completely retract the telescopic clamping block 8 into the telescopic clamping block mounting groove 7 to release the anti-loosening protection. The anti-loosening protection function between the bolt 3 and the nut 4 no longer relies on the excessive friction between the threads, thereby avoiding the situation where the anti-loosening protection function causes excessive wear of the threads; when the nut 4 rotates on the bolt 3 in the tightening direction, the fixed clamping block 9 cannot move in the direction that would loosen the nut 4, and furthermore, the nut 4 cannot rotate in the direction of loosening, thereby realizing the anti-loosening protection function of the bolt 3 and the nut 4. After the fixed card block 9 contacts the telescopic card block 8, the end of the telescopic card block 8 extending out of the telescopic card block installation groove 7 can be pushed into the telescopic card block installation groove 7 through the inclined surface, thereby preventing the telescopic card block 8 from affecting the tightening of the nut 4. When the telescopic card block 8 moves toward the depth of the telescopic card block installation groove 7, the spring 10 is compressed. Therefore, after the fixed card block 9 leaves the surface of the telescopic card block 8, the spring 10 will push one end of the telescopic card block 8 out of the telescopic card block installation groove 7 again under the action of its own elasticity. When the end of the fixed card block 9 away from the nut 4 abuts against the surface of the pad 6, it means that the nut 4 has been tightened. When actively loosening the nut 4, the lever 12 can be moved to move the lever 12 in the lever window 11 in a direction away from the nut 4, thereby driving the telescopic block 8 to move in the same direction, so that the telescopic block 8 is completely retracted into the telescopic block mounting groove 7, and the anti-loosening protection function of the nut 4 can be cancelled; after the bolt 3 is inserted into the screw hole, the pad 6 is sleeved on the bolt 3 and the two groups of positioning rods 14 fixed on the surface of the pad 6 are inserted into the two groups of positioning grooves 13 opened on the surface of the pressure water tank 1. The positioning grooves 13 play a role of circumferential positioning of the positioning rods 14 so that the pad 6 cannot rotate.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure vessel with a protective mechanism, comprising: A pressure water tank (1) and a delivery pipe (2), the flanges of the pressure water tank (1) and the delivery pipe (2) are both provided with screw holes, bolts (3) are movably inserted in the screw holes, and nuts (4) are arranged on the bolts (3) through threaded connection, characterized in that: a nut fixing sleeve (5) is fixed on the surface of the end of the flange of the delivery pipe (2) away from the pressure water tank (1), the nut of the bolt (3) is movably inserted in the nut fixing sleeve (5), a pad (6) is sleeved on the screw rod of the bolt (3), a telescopic card block mounting groove (7) is opened on the surface of the pad (6), a telescopic card block (8) is movably inserted in the telescopic card block mounting groove (7), a spring (10) is fixed between one end of the telescopic card block (8) extending into the telescopic card block mounting groove (7) and the inner wall of the telescopic card block mounting groove (7), and a fixed card block (9) is fixed on the surface of the nut (4).

2. A pressure vessel with a protection mechanism according to claim 1, characterized in that: The nut fixing sleeve (5) is an annular column structure, and the shape and size of the inner ring of the nut fixing sleeve (5) match the shape and size of the nut of the bolt (3).

3. A pressure vessel with a protection mechanism according to claim 1, characterized in that: The backing plate (6) is an annular plate structure, the inner ring shape and size of the backing plate (6) are the same as the rod body of the bolt (3), one end of the backing plate (6) is against the surface of the end of the flange of the pressure water tank (1) away from the delivery pipe (2), and the nut (4) is arranged on the other end of the backing plate (6).

4. A pressure vessel with a protection mechanism according to claim 1, characterized in that: A group of telescopic block mounting grooves (7) are provided on the surface of the backing plate (6), and a plurality of fixed blocks (9) are provided on the surface of the nut (4). The plurality of fixed blocks (9) are all provided at one end of the nut (4) close to the backing plate (6), and the plurality of fixed blocks (9) are distributed in a circle about the axis of the bolt (3).

5. The pressure vessel with a protection mechanism according to claim 1, characterized in that: An end of the telescopic card block (8) extending out of the telescopic card block installation slot (7) is provided with an inclined surface, and a surface of the fixed card block (9) is also provided with an inclined surface, and the inclined surface of the fixed card block (9) is in the opposite direction to the inclined surface of the telescopic card block (8).

6. A pressure vessel with a protection mechanism according to claim 1, characterized in that: A lever window (11) is provided on the side of the pad (6), a lever (12) is slidably connected in the lever window (11), one end of the lever (12) is fixed on the surface of the telescopic block (8), and the other end of the lever (12) extends out of the lever window (11).

7. A pressure vessel with a protection mechanism according to claim 1, characterized in that: Two groups of positioning rods (14) are fixed to one end of the pad (6), and two groups of positioning grooves (13) are provided near each screw hole on the surface of the pressure water tank (1), and the two groups of positioning rods (14) are movably inserted into the two groups of positioning grooves (13) respectively.

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