A sealing device for a fire extinguisher bottle external measurement hydraulic pressure testing machine

Abstract

The invention provides a sealing device for a water pressure testing machine for an external measurement method of a fire extinguisher bottle, comprising a body, an auxiliary component for extension being arranged inside the body, the auxiliary component comprising a sleeve, an extension column and an auxiliary strip, the sleeve being provided with an extension column, the surface of the extension column being provided with an auxiliary strip, the screw is rotated through the extension column to push the auxiliary sleeve into the interior of the bottle body, during this process, the screw pushes the auxiliary strip while passing through the internal thread of the extension column, the elasticity of the auxiliary strip makes the screw enter the extension column and then interfere with the extension column, and pushes the arched side of the auxiliary strip to expand outward, the outer side of the auxiliary strip is expanded outward and then fits with the inner side of the bottle mouth of the bottle body through the through hole on the outer side of the extension column, the auxiliary strip is clamped to the bottle body by the extrusion of the screw, thereby improving the stability during the test.

Description

Technical Field

[0001] The invention relates to the technical field of measuring the physical properties of materials, in particular to a sealing device of a water pressure testing machine using an external measurement method for a fire extinguisher bottle. Background Art

[0002] When repairing and refilling fire extinguisher bottles, the bottle body needs to be subjected to a water pressure test. During the water pressure test, the bottle mouth needs to be sealed. The main performance of the bottle mouth sealing is to maintain a sealed state when the bottle body is squeezed by water pressure, thereby measuring the pressure resistance of the bottle body, thereby facilitating the subsequent use and safety of the fire extinguisher bottle. Technical inspiration for the sealing of the fire extinguisher bottle mouth;

[0003] Research on the seal of fire extinguisher bottles found the following problems:

[0004] When the hydraulic pressure testing machine seals the mouth of the fire extinguisher bottle, it seals it by threading the head connector with the bottle mouth. However, if the mouth of the fire extinguisher bottle is deformed after being pressurized, the bottle mouth and the threaded connection with the head connector are easily stuck. During the hydraulic pressure test after the head connector is threaded with the bottle mouth, the bottle mouth cannot be prevented from deformation, resulting in damage to the head connector after the bottle mouth is deformed, thus failing to achieve the purpose of measuring the pressure resistance of the bottle body;

[0005] At the same time, connecting the head connector to the bottle mouth through a single thread cannot improve the stability of the fire extinguisher bottle during the test.

[0006] The present invention can mainly solve the problem that during the pressure test of the connection between the head connector and the bottle mouth, the bottle mouth cannot be prevented from deformation, resulting in the water pressure testing machine being unable to measure the pressure resistance of the bottle body. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a sealing device for a fire extinguisher bottle external measurement method water pressure testing machine to solve the problems described in the above background technology.

[0008] The purpose and efficacy of the sealing device of a fire extinguisher bottle external measurement method water pressure testing machine of the present invention are achieved by the following specific technical means: a sealing device of a fire extinguisher bottle external measurement method water pressure testing machine, comprising a body, a door panel is provided at the lower part of the front of the body, a console, a pressure gauge and a baffle are provided in sequence from left to right at the upper part of the front of the body, an auxiliary component for extension is provided inside the body, the auxiliary component comprises a sleeve, an extension column and an auxiliary strip, an extension column is provided inside the sleeve, and an auxiliary strip is provided on the surface of the extension column.

[0009] Furthermore, a through hole is provided on the top of the sleeve, the size of which matches the size of the extension column, and the bottom of the sleeve is open, the size of which matches the size of the bottle mouth of the bottle body.

[0010] Furthermore, the extension column is centrally arranged in the through hole at the top of the sleeve, the lowest end of the extension column is on the same horizontal line as the top end of the bottle body, the inner wall of the extension column is threaded, and a spiral through hole is provided on the outer side of the extension column, which corresponds to the thread of the inner wall, and a stable component for sealing is provided inside the extension column.

[0011] Furthermore, the auxiliary strip is spirally arranged in the spiral through hole on the outer side of the extension column, and the two are matched with each other, and the side of the auxiliary strip close to the outer side of the extension column is flat, and the side of the auxiliary strip close to the inside of the extension column is arched. The auxiliary strip can be made of an elastic material, and spring steel is used here.

[0012] Furthermore, the stabilizing component includes a screw, a cover plate, a handle, a limit plate, an auxiliary tube, a reset spring and a connecting plate. The bottom of the screw is also connected to an auxiliary tube, the outer side of the auxiliary tube is installed with a limit plate, the inner side of the limit plate is connected with a connecting plate, the inside of the auxiliary tube is installed with a reset spring, the top of the screw is installed with a cover plate, and the upper surface of the cover plate is installed with a handle.

[0013] Furthermore, the screw is embedded in the interior of the extension column, and the screw and the threads inside the extension column are matched, and the length of the screw is consistent with the length of the bottle mouth of the bottle body.

[0014] Furthermore, the diameter of the cover plate is consistent with the diameter of the extension column.

[0015] Furthermore, there are eight limit plates arranged around the outer side of the auxiliary cylinder, and the eight limit plates are connected by a rotating shaft. The outer side of the limit plate is arranged in an arc shape and matches the top arc of the bottle body. The bottom of the inner side of the limit plate is connected to a connecting plate.

[0016] Furthermore, the auxiliary cylinder is arranged in an I-shape, and eight return springs are arranged around the bottom of the I-shaped center axis. The ends of the eight return springs away from the I-shaped center axis are connected to eight connecting plates, and the initial state of the return spring is a compressed state. A through hole is opened at the lower part of the outer side surface of the auxiliary cylinder, and the through hole corresponds to the connecting plate.

[0017] Furthermore, the connecting plate is arranged in a trapezoidal shape, the length of the side connected to the limit plate is greater than the length of the side connected to the reset spring, and the size of the connecting plate is smaller than the size of the through hole below the outer side of the auxiliary cylinder.

[0018] Beneficial effects:

[0019] 1. Install the bottle body inside the machine body so that the bottle body is embedded in the bottom opening of the sleeve and locked. At this time, the extension column enters the bottle body through the bottle mouth. The sleeve and the extension column are connected in a concave shape. The bottle mouth of the bottle body is embedded in the concave connection between the sleeve and the extension column to prevent the bottle mouth from being deformed during the water pressure test, thereby achieving the purpose of preventing deformation;

[0020] 2. The screw rotates through the extension column to push the auxiliary tube into the bottle body. During this process, the screw passes through the internal thread of the extension column and pushes the auxiliary strip at the same time. Due to the elasticity of the auxiliary strip, the screw enters the extension column and has an interference fit with it, pushing the arched side of the auxiliary strip to expand outward. After the outer surface of the auxiliary strip expands outward, it passes through the through hole on the outer side of the extension column and fits against the inner side of the bottle mouth. The auxiliary strip is clamped on the bottle body by the extrusion of the screw, thereby improving stability during the test;

[0021] 3. As the auxiliary cylinder follows the screw and moves downward, the extension column gradually cancels the limit on the limit plate. At this time, the reset spring pushes the connecting plate through its own performance to expand the limit plate outward. When the screw and the extension column are fully engaged through the handle, the diameter of the cover plate matches the diameter of the extension column, so that the cover plate will block and close the extension column to prevent the formation of gaps that affect the measurement of the hydraulic pressure testing machine.

[0022] 4. The length of the screw is consistent with the length of the bottle mouth of the bottle body, so that after the screw is fully engaged with the extension column, the limit plate is no longer affected by the limit of the extension column. The return spring fully pushes the connecting plate through its own performance to move the limit plate completely outward. After the limit plate expands outward, it matches the arc-shaped part of the top of the bottle body, so that the limit plate is engaged with the top of the bottle body for stabilization, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the bottle connection structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the extension column connection structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the outer side structure of the extension column of the present invention;

[0027] Figure 5 This is a schematic diagram of the auxiliary strip structure of the present invention;

[0028] Figure 6 Schematic diagram of the screw connection structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the auxiliary cylinder explosion structure of the present invention;

[0030] Figure 8 This is a schematic structural diagram of the reset spring of the present invention when it is not restricted.

[0031] Figure 1-8 , the corresponding relationship between component names and figure numbers is as follows:

[0032] 1. Machine body; 101. Control console; 102. Baffle; 103. Door panel; 104. Pressure gauge; 2. Bottle body; 3. Sleeve; 301. Extension column; 302. Auxiliary strip; 4. Screw; 401. Cover; 402. Handle; 403. Limit plate; 404. Auxiliary cylinder; 405. Return spring; 406. Connecting plate. Implementation Method

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] As attached Figure 1 To the attached Figure 8 As shown: Example

[0035] A sealing device for a fire extinguisher bottle external test method hydraulic pressure testing machine includes a body 1, a door panel 103 is provided at the lower front of the body 1, a console 101, a pressure gauge 104, and a baffle 102 are provided in order from left to right at the upper front of the body 1, and an auxiliary assembly for extension is provided inside the body 1, the auxiliary assembly including a sleeve 3, an extension column 301, and an auxiliary bar 302;

[0036] An extension column 301 is provided inside the sleeve 3, and an auxiliary strip 302 is provided on the surface of the extension column 301;

[0037] Among them, the sleeve 3 has a through hole at the top, the size of which matches the size of the extension column 301, and the bottom of the sleeve 3 is open, the size of which matches the size of the bottle mouth of the bottle body 2;

[0038] The extension column 301 is centrally disposed within the through hole at the top of the sleeve 3. The lowest end of the extension column 301 is located on the same horizontal line as the top of the bottle body 2. The inner wall of the extension column 301 is threaded, and a spiral through hole is formed on the outer side of the extension column 301. The through hole corresponds to the thread on the inner wall. A sealing and stabilizing component is provided inside the extension column 301.

[0039] The auxiliary strip 302 is spirally disposed within the spiral through hole on the outer side of the extension column 301. The auxiliary strip 302 and the extension column 301 are arranged in a matching manner. The side of the auxiliary strip 302 close to the outer side of the extension column 301 is flat, and the side of the auxiliary strip 302 close to the interior of the extension column 301 is arched. The auxiliary strip 302 can be made of an elastic material, and spring steel is used in this embodiment.

[0040] First, check and calibrate the pressure gauge 104 to see if the level of the hydraulic press lubricating oil meets the standard and if the color of the lubricating oil has changed. After completion, install the bottle body 2 inside the body 1 so that the bottle body 2 is embedded in the bottom opening of the sleeve 3 and snaps into place. At this time, the extension column 301 enters the interior of the bottle body 2 through the bottle mouth. At this time, the water inside the water tank is pumped out through the pipeline to the interior of the body 1 by an external pressure pump. The water temperature should not be lower than 5 degrees Celsius. During the test, first increase the pressure to the maximum working pressure, then release the pressure. Repeat this several times to eliminate the gas in the water. Then slowly and evenly increase the pressure to the specified pressure. The duration at this pressure should not be less than one minute and observe carefully. Example

[0041] This embodiment differs from the first embodiment in that: the stabilizing assembly includes a screw rod 4, a cover plate 401, a handle 402, a limit plate 403, an auxiliary cylinder 404, a return spring 405, and a connecting plate 406. The bottom of the screw rod 4 is also connected to an auxiliary cylinder 404. The outer side of the auxiliary cylinder 404 is mounted with a limit plate 403. The inner side of the limit plate 403 is connected with a connecting plate 406. The interior of the auxiliary cylinder 404 is mounted with a return spring 405. The top of the screw rod 4 is mounted with a cover plate 401. The upper surface of the cover plate 401 is mounted with a handle 402.

[0042] The screw 4 is embedded in the extension column 301, and the screw 404 is matched with the thread inside the extension column 301. The length of the screw 4 is consistent with the length of the bottle mouth of the bottle body 2.

[0043] Cover plate 401, the diameter of cover plate 401 is consistent with the diameter of extension column 301;

[0044] The limiting plates 403 are arranged around the outer side of the auxiliary cylinder 404, and there are eight limiting plates 403. The eight limiting plates 403 are connected by a rotating shaft. The outer side of the limiting plates 403 is arranged in an arc shape and matches the top arc of the bottle body 2. The bottom of the inner side of the limiting plates 403 is connected to the connecting plate 406;

[0045] The auxiliary cylinder 404 is arranged in an I-shaped configuration. Eight return springs 405 are arranged around the bottom of the I-shaped center axis. The ends of the eight return springs 405 away from the I-shaped center axis are connected to eight connecting plates 406. The return springs 405 are initially compressed. A through hole is formed on the lower side of the outer side of the auxiliary cylinder 404, and the through hole corresponds to the connecting plate 406.

[0046] The connecting plate 406 is arranged in a trapezoidal shape. The length of the side connected to the limit plate 403 is greater than the length of the side connected to the return spring 405. The size of the connecting plate 406 is smaller than the size of the through hole below the outer side of the auxiliary cylinder 404;

[0047] After the bottle body 2 is inserted into the bottom opening of the sleeve 3 and engaged, the extension column 301 is inserted into the interior of the bottle body 2. The handle 402 is turned to make the cover plate 401 drive the screw rod 4 to rotate. The screw rod 4 matches the internal thread of the extension column 301, so that the screw rod 4 rotates through the extension column 301 to push the auxiliary cylinder 404 into the interior of the bottle body 2. In this process, the screw rod 4 pushes the auxiliary bar 302 while passing through the internal thread of the extension column 301. The elasticity of the auxiliary bar 302 makes the screw rod 4 enter the extension column 301 and push the auxiliary cylinder 404 into the interior of the bottle body 2. The arched side of the strip 302 expands outwards, and the outer side of the auxiliary strip 302 is fitted with the inner side of the bottle mouth of the bottle body 2 through the through hole on the outer side of the extension column 301. The auxiliary strip 302 is squeezed by the screw 4 to clamp the bottle body 2, thereby improving the stability during the test. As the auxiliary cylinder 404 moves downward along with the screw 4, the extension column 301 gradually cancels the limit on the limit plate 403. At this time, the reset spring 405 pushes the connecting plate 406 through its own performance to make the limit plate 403 expand outwards. When the handle 4 is passed, the bottle body 2 is clamped. 02 When the screw rod 4 is fully engaged with the extension column 301, the diameter of the cover plate 401 matches the diameter of the extension column 301, so that the cover plate 401 blocks and closes the extension column 301 to prevent the generation of gaps that affect the measurement of the water pressure testing machine. The length of the screw rod 4 is consistent with the length of the bottle mouth of the bottle body 2, so that after the screw rod 4 is fully engaged with the extension column 301, the limit plate 403 is no longer affected by the limit of the extension column 301. At this time, the eight return springs 405 completely push the connecting plate 406 through their own performance to completely stop the limit plate 403. The limit plate 403 moves in a circular motion through the rotating shaft. The size of the connecting plate 406 is smaller than the size of the through hole on the outer side of the auxiliary cylinder 404, and the connecting plate 406 is arranged in a trapezoidal shape, and the side connected to the reset spring 405 is smaller than the side connected to the limit plate 403, so that the reset spring 405 can push the connecting plate 406 to expand the limit plate 403 outward. After the limit plate 403 expands outward, it matches the arc-shaped part at the top of the bottle body 2, so that the limit plate 403 is engaged with the top of the bottle body 2 for stabilization, thereby improving stability.

[0048] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A sealing device for a fire extinguisher bottle external test method hydraulic pressure testing machine, comprising a body (1), characterized in that: A door panel (103) is provided below the front of the machine body (1), and a console (101), a pressure gauge (104), and a baffle (102) are provided above the front of the machine body (1) in order from left to right. An auxiliary component for extension is provided inside the machine body (1), and the auxiliary component includes a sleeve (3), an extension column (301), and an auxiliary bar (302); An extension column (301) is provided inside the sleeve (3), and an auxiliary strip (302) is provided on the surface of the extension column (301); The top of the sleeve (3) is provided with a through hole, the size of which matches the size of the extension column (301); the bottom of the sleeve (3) is open, the size of which matches the size of the bottle mouth of the bottle body (2); The extension column (301) is centrally arranged in the through hole at the top of the sleeve (3), the lowest end of the extension column (301) and the top end of the bottle body (2) are located on the same horizontal line, the inner wall of the extension column (301) is arranged in a threaded shape, and the outer side surface of the extension column (301) is provided with a spiral through hole, which corresponds to the thread of the inner wall of the extension column (301), and a sealing stabilizing component is provided inside the extension column (301); The auxiliary strip (302) is spirally arranged in the spiral through hole on the outer side of the extension column (301), and the two are arranged in a matching manner. The auxiliary strip (302) is made of elastic material; The stabilizing assembly comprises a screw (4), a limiting plate (403), an auxiliary cylinder (404), a return spring (405) and a connecting plate (406), wherein the bottom of the screw (4) is connected to the auxiliary cylinder (404), the outer side of the auxiliary cylinder (404) is mounted with the limiting plate (403), the inner side of the limiting plate (403) is connected with the connecting plate (406), and the interior of the auxiliary cylinder (404) is mounted with the return spring (405); The screw (4) is embedded in the interior of the extension column (301), and the screw (4) and the threads inside the extension column (301) are matched, and the length of the screw (4) is consistent with the length of the bottle mouth of the bottle body (2); The limiting plates (403) are arranged in a surrounding manner on the outer side of the auxiliary cylinder (404), and the eight limiting plates (403) are connected by a rotating shaft. The outer side of the limiting plates (403) is arranged in an arc shape and matches the top arc of the bottle body (2). The bottom of the inner side of the limiting plates (403) is connected to a connecting plate (406); The auxiliary cylinder (404) is arranged in an I-shape, and eight return springs (405) are arranged around the bottom of the I-shaped center axis. The ends of the eight return springs (405) away from the I-shaped center axis are respectively connected to eight connecting plates (406), and the initial state of the return springs (405) is a compressed state. A through hole is opened at the lower side of the outer side of the auxiliary cylinder (404), and the through hole corresponds to the connecting plate (406). The connecting plate (406) is inserted into the through hole of the auxiliary cylinder (404).

2. A fire extinguisher bottle external measurement method hydraulic pressure testing machine sealing device according to claim 1, characterized in that: The auxiliary strip (302) is provided in a plane shape on one side close to the outer side of the extension column (301), and in an arch shape on one side close to the inside of the extension column (301). The auxiliary strip (302) is made of spring steel.

3. The sealing device of the fire extinguisher bottle external measurement method hydraulic pressure testing machine according to claim 1, characterized in that: The stabilizing assembly further comprises a cover plate (401) and a handle (402). The cover plate (401) is mounted on the top of the screw rod (4), and the handle (402) is mounted on the upper surface of the cover plate (401).

4. A fire extinguisher bottle external measurement method hydraulic pressure testing machine sealing device according to claim 3, characterized in that: The diameter of the cover plate (401) is consistent with the diameter of the extension column (301).

5. The sealing device of the fire extinguisher bottle external measurement method hydraulic pressure testing machine according to claim 1, characterized in that: The connecting plate (406) is arranged in a trapezoidal shape, and the length of the side connected to the limiting plate (403) is greater than the length of the side connected to the return spring (405). The size of the connecting plate (406) is smaller than the size of the through hole below the outer side of the auxiliary cylinder (404).

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