Test hold-down device for sealing element

Abstract

The utility model relates to sealing element production equipment, in particular to a sealing element test hold-down device, which comprises a base, a lifting mechanism is arranged in a cavity of the base, a driving mechanism is arranged on the base, and a transmission mechanism is inserted on the driving mechanism in a sliding manner. According to the utility model, through the integral matching design, the rubber sealing ring can be placed in the draining frame when pressure bearing detection is carried out on a sealing element, i.e., the rubber sealing ring, and the pressing disc is pressed in the draining frame through the descending movement of the lifting mechanism, so that the rubber sealing ring in the draining frame is pressed; an external air supply machine is connected to the air pipe connector for air supply, air flow can be discharged from the air holes, the rubber sealing ring is pressed by the bottoms of the pressing disc and the draining frame, a sealed cavity is formed between the pressing disc and the draining frame, whether air leakage exists during air injection or not is observed according to the fact that the draining frame and the pressing disc are immersed in the groove filled with water, and the air leakage is avoided. And the sealing pressure-bearing effect of the rubber sealing ring can be detected.

Description

Technical Field

[0001] The utility model relates to a sealing component production device, in particular to a sealing component test press. Background Art

[0002] Seals include rubber sealing rings and sealing gaskets, which are mainly used to prevent fluid (liquid or gas) leakage. They are usually installed at the joints of mechanical equipment, pipelines and containers. They form an effective seal by filling seams or gaps, thereby maintaining internal pressure and protecting the internal environment.

[0003] After the seals are produced, in order to ensure that the sealing effect meets the standards, the seals need to be pressure tested, which requires the use of a test press for the seals. When the current test presses for seals are in use, they are usually tested in conjunction with a variety of airtight sensors, resulting in a more complex overall structure of the test presses for seals. When more sensors are in use, there is a higher failure rate, which affects the service life of the overall equipment. Utility Model Content

[0004] The purpose of the present utility model is to provide a test press for sealing components to solve the problems raised in the above background technology.

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

[0006] A test press for a seal comprises: a base, a lifting mechanism installed in the cavity of the base, a driving mechanism provided on the base, a transmission mechanism slidably plugged into the driving mechanism, one end of the transmission mechanism is connected to a holding mechanism, the transmission mechanism can rotate under the drive of the driving mechanism, and the holding mechanism rotates following the transmission mechanism, the holding mechanism is provided on the lifting mechanism, the holding mechanism can be vertically lifted and lowered in the cavity of the base under the drive of the lifting mechanism, and the transmission mechanism slides and plugs on the driving mechanism following the lifting and lowering of the holding mechanism, and a drainage mechanism is slidably provided on the holding mechanism.

[0007] The test press for the seal as described above: a control panel is provided at the inclined portion of the bottom side of the base, a groove is provided in the cavity of the base on one side of the control panel, clean water is filled in the groove, a water changing hole is provided on the base on one side of the bottom of the groove, mounting positions are provided in the cavity of the base on both sides of the groove, and a first limit rotation hole is provided on the top of the base at the vertical portion of the groove.

[0008] The test press for the seal as described above: the lifting mechanism includes two electric push rods, and a top plate arranged on the piston rods of the two electric push rods, a second position-limiting rotation hole is opened at the center of the top plate, and the two electric push rods are respectively installed in the installation position, and the center of the second position-limiting rotation hole is aligned with the center of the groove.

[0009] The test press for the seal as described above: the transmission mechanism includes a transmission shaft, a limit bar, a limit plate and an air pipe connector, a plurality of limit bars are arranged at equal intervals on the outer wall of the transmission shaft, a limit plate is arranged on the top of the transmission shaft, an air pipe connector connected to the external air supply pipe is arranged on the limit plate, the transmission shaft is arranged as a hollow cavity, and the hollow cavity is used for conveying airflow.

[0010] The test press for the seal as described above: the holding mechanism includes a rotating disk, a side column, an air pipe, a holding disk and an air hole, the rotating disk is connected to the limit bar away from one end of the limit disk, the center of the rotating disk is aligned with the center of the drive shaft, the outer wall of the rotating disk is connected to the inner ring of the bearing, the outer ring of the bearing is connected to the first limit rotation hole, the rotating disk is rotatably connected to the first limit rotation hole through the bearing, four side columns are provided in a circular array on the side of the rotating disk away from the drive shaft, a side column is provided at the center of the rotating disk on the same side of the four side columns, the other end of the side column is connected to the holding disk, an air hole is opened at the center of the holding disk, and the air hole is connected to the hollow cavity of the drive shaft through the air pipe.

[0011] The test press for the seal as described above: the driving mechanism includes a servo motor connected to the outer wall of the back of the base, a first transmission wheel is installed on the output shaft of the servo motor, the first transmission wheel and the second transmission wheel are connected by a transmission belt, the outer wall of the rotating shaft on one side of the second transmission wheel is connected to the inner ring of another bearing, the outer ring of the bearing is installed in the second limited rotation hole, and a limited slot is provided at the center of the second transmission wheel and the rotating shaft set on one side.

[0012] The test press for the seal as described above: the transmission shaft and the limit bar are slidably inserted into the limit slot, and the limit slot limits the transmission shaft and the limit bar so that they can only move vertically.

[0013] The test press for the seal as described above: the drain mechanism includes a drain frame and three L-shaped rods connected in an isosceles triangle array on the top of the drain frame, the bottom center of the drain frame is composed of a hollow plastic bin with buoyancy, the inner wall diameter of the drain frame is the same as the outer wall diameter of the pressure holding plate, and the shorter ends of the three L-shaped rods are slidably connected to the corresponding three side columns.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Through the coordinated design of the lifting mechanism, transmission mechanism, holding mechanism, drive mechanism and drain mechanism, when the seal, i.e., the rubber sealing ring, is subjected to pressure testing, the rubber sealing ring can be placed inside the drain frame, and the lifting mechanism is used to descend so that the holding plate is held inside the drain frame to hold the internal rubber sealing ring. Air is supplied through an external air supply machine connected to the air pipe connector, and the air flow can be discharged from the air holes. Since the holding plate and the bottom of the drain frame hold the rubber sealing ring, a sealed cavity is formed between the two. The drain frame and the holding plate are immersed in a groove filled with water, and whether there is air leakage during air injection is observed, so that the sealing pressure-bearing effect of the rubber sealing ring can be tested. After the test is completed, the holding mechanism and the drain mechanism can be rotated by the drive mechanism and the transmission mechanism to achieve dehydration and quick-drying of the rubber sealing ring inside the drain frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the test press for seals.

[0017] Figure 2 This is a schematic diagram of the overall rear view of the test fixture for the seal.

[0018] Figure 3 Schematic diagram of the structure of the base in the test press for seals.

[0019] Figure 4 This is a schematic diagram of the structure of the test mechanism in the test press for seals.

[0020] Figure 5 This is a schematic diagram of the structure of the lifting mechanism in the test press for seals.

[0021] Figure 6 This is a schematic diagram of the structure of the transmission mechanism and the holding mechanism in the test press for seals.

[0022] Figure 7 Schematic diagram of the structure of the driving mechanism in the test press for seals.

[0023] Figure 8 This is a schematic diagram of the structure of the drainage mechanism in the test press for the seal.

[0024] In the figure: 1. Base; 101. Control panel; 102. Groove; 103. Mounting position; 104. First limit rotating hole; 2. Lifting mechanism; 201. Electric push rod; 202. Top plate; 203. Second limit rotating hole; 3. Transmission mechanism; 301. Transmission shaft; 302. Limiting strip; 303. Limiting disk; 304. Air pipe connector; 4. Holding mechanism; 401. Rotating disk; 402. Side column; 403. Air pipe; 404. Holding disk; 405. Air hole; 5. Driving mechanism; 501. Servo motor; 502. First transmission wheel; 503. Transmission belt; 504. Second transmission wheel; 505. Limiting slot; 6. Drain mechanism; 601. Drain frame; 602. L-shaped rod. DETAILED DESCRIPTION

[0025] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0026] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0027] In addition, numerous specific details are provided in the following specific examples to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, and components well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0028] See also Figures 1 to 8 In an embodiment of the present invention, a test press for a seal comprises: a base 1, a lifting mechanism 2 is installed in the cavity of the base 1, a driving mechanism 5 is provided on the base 1, a transmission mechanism 3 is slidably plugged into the driving mechanism 5, one end of the transmission mechanism 3 is connected to the holding mechanism 4, the transmission mechanism 3 can rotate under the drive of the driving mechanism 5, and the holding mechanism 4 rotates following the transmission mechanism 3, the holding mechanism 4 is provided on the lifting mechanism 2, the holding mechanism 4 can be vertically lifted and lowered in the cavity of the base 1 under the drive of the lifting mechanism 2, and the transmission mechanism 3 slides and plugs on the driving mechanism 5 following the lifting of the holding mechanism 4, and a drainage mechanism 6 is slidably provided on the holding mechanism 4.

[0029] In this embodiment, the various components of the device are electrically connected to the control panel 101 through a conductive line, and the operating status of the device can be controlled by the control panel 101. When the seal, i.e., the rubber sealing ring, is subjected to pressure testing, clean water is injected into the groove 102, and the rubber sealing ring is placed in the drain frame 601. It should be noted that the diameter of the rubber sealing ring is not less than half of the diameter of the inner wall of the drain frame 601, ensuring that when the rubber sealing ring is placed in the drain frame 601, the inner circle of the rubber sealing ring partially coincides with the center of the inner wall of the drain frame 601. At this time, the operation of the electric push rod 201 causes the piston rod to contract, the top plate 202 will drop, and the transmission mechanism 3, the holding mechanism 4 and the drain mechanism 6 installed on the top plate 202 will drop together.

[0030] When the bottom plastic hollow chamber of the drain frame 601 hits the water surface injected into the groove 102, the drain frame 601 will be in a suspended state supported by the plastic hollow chamber on the water surface and will not continue to fall, while the transmission mechanism 3 and the holding mechanism 4 will continue to fall. At this time, the L-shaped rod 602 will slide on the side column 402, and the holding plate 404 is concentric with the drain frame 601. Therefore, when the holding mechanism 4 continues to fall, the holding plate 404 will fit the inner wall of the drain frame 601 and fall. When the top side of the rubber sealing ring is placed inside the frame 601, the rubber sealing ring can be clamped between the pressure holding plate 404 and the drain frame 601. Since the downward pressure of the electric push rod 201 is greater than the suspension force of the plastic hollow bin set at the bottom of the drain frame 601, the drain frame 601 and the pressure holding plate 404 will be submerged below the water surface of the groove 102. Since the rubber sealing ring is clamped by the pressure holding plate 404 and the drain frame 601, the inner ring of the rubber sealing ring is in a sealed and dry state when it is submerged below the water surface.

[0031] When the bottom of the drain frame 601 hits the bottom of the groove 102, the electric push rod 201 stops running and is connected to the external air supply pipe through the air pipe connector 304, and air is supplied to the air pipe connector 304. The air flow will flow through the inside of the transmission shaft 301 and then be transported to the air hole 405 through the air supply pipe 403. Since the inner ring of the rubber sealing ring coincides with the air hole 405 at this time, and the rubber sealing ring is in a pressed state, the inner ring can limit the leakage of air flow when supplying air flow. The sealing effect of the rubber sealing ring is determined by whether there are bubbles caused by leakage of the water injected into the groove 102. After the detection is completed, the electric push rod 201 runs to make the top plate 202 rise.

[0032] When the drain frame 601 is raised to a position above the water surface, the electric push rod 201 stops running, and then the servo motor 501 runs, driving the second transmission wheel 504 to rotate, thereby driving the transmission mechanism 3 and the holding mechanism 4 to rotate, and the drain mechanism 6 set on the holding mechanism 4 rotates together, which can dehydrate and quickly dry the rubber sealing ring that has just been tested for water immersion. After the rubber sealing ring is dry, the electric push rod 201 runs, so that the top plate 202 continues to rise to the initial position. The L-shaped rod 602 arranged in an isosceles triangle on the drain frame 601 facilitates the rubber sealing ring to be taken in and out of the drain frame 601, thereby improving the use effect. Through design, the failure rate of the test press of the seal can be reduced.

[0033] As a further solution of the present invention, a control panel 101 is provided at the inclined portion of the bottom side of the base 1, a groove 102 is opened in the cavity of the base 1 on one side of the control panel 101, clean water is filled in the groove 102, a water changing hole is opened on the base 1 on the bottom side of the groove 102, mounting positions 103 are opened in the cavity of the base 1 on both sides of the groove 102, and a first limiting rotation hole 104 is opened on the top of the base 1 at the vertical portion of the groove 102.

[0034] In this embodiment, a valve is installed at the water exchange hole on one side of the bottom of the groove 102 to facilitate the replacement and refilling of the water inside the groove 102. The installation position 103 is used for the limited installation of the electric push rod 201 to ensure the overall connection and use effect. The design of the base 1 meets the overall connection and use of the device.

[0035] As a further solution of the present invention, the lifting mechanism 2 includes two electric push rods 201, and a top plate 202 arranged on the piston rods of the two electric push rods 201. A second position-limiting rotation hole 203 is opened at the center of the top plate 202. The two electric push rods 201 are respectively installed in the installation positions 103, and the center of the second position-limiting rotation hole 203 is aligned with the center of the groove 102.

[0036] In this embodiment, the extension and retraction of the piston rod of the electric push rod 201 can control the lifting and lowering adjustment of the top plate 202, so that the various mechanisms installed on the top plate 202 can be lifted and lowered to meet the pressure detection movement of the seal.

[0037] As a further solution of the present invention, the transmission mechanism 3 includes a transmission shaft 301, a limit bar 302, a limit plate 303 and an air pipe connector 304. A plurality of limit bars 302 are arranged at equal intervals on the outer wall of the transmission shaft 301. A limit plate 303 is arranged on the top of the transmission shaft 301. A air pipe connector 304 connected to the external air supply pipe is arranged on the limit plate 303. The transmission shaft 301 is arranged as a hollow cavity, and the hollow cavity is used for conveying airflow.

[0038] In this embodiment, the limit bar 302 set on the transmission shaft 301 can limit the rotation of the transmission shaft 301 in the limit slot 505 when the transmission shaft 301 is slidably inserted into the limit slot 505, so that the transmission shaft 301 can be vertically lifted and lowered in the limit slot 505, so that when the second transmission wheel 504 rotates, the transmission shaft 301 can follow the second transmission wheel 504 to rotate, and the limit plate 303 is used to limit the maximum descending height of the transmission shaft 301. The air pipe connector 304 is used to connect to the external air supply pipe for use in supplying air during pressure testing of the seal.

[0039] As a further solution of the present invention, the holding mechanism 4 includes a rotating disk 401, a side column 402, an air pipe 403, a holding disk 404 and an air hole 405. The rotating disk 401 is connected to the limiting bar 302 at one end away from the limiting disk 303. The center of the rotating disk 401 is aligned with the center of the transmission shaft 301. The outer wall of the rotating disk 401 is connected to the inner ring of the bearing, and the outer ring of the bearing is connected to the first limiting rotation hole 104. The rotating disk 401 is rotatably connected to the first limiting rotation hole 104 through the bearing. Four side columns 402 are arranged in a circular array on the side of the rotating disk 401 away from the transmission shaft 301. A side column 402 is arranged at the center of the rotating disk 401 on the same side of the four side columns 402. The other end of the side column 402 is connected to the holding disk 404. An air hole 405 is opened at the center of the holding disk 404. The air hole 405 is connected to the hollow cavity of the transmission shaft 301 through the air pipe 403.

[0040] In this embodiment, the rotating disk 401 is used to connect to the bottom end of the transmission shaft 301, and several side columns 402 are arranged between the rotating disk 401 and the holding disk 404, which can make the two firmly connected. The air supply pipe 403 acts between the air hole 405 and the hollow cavity of the transmission shaft 301, so that the two are connected, and when the external air supply device supplies air, the air flow can be discharged from the air hole 405.

[0041] As a further solution of the present invention, the driving mechanism 5 includes a servo motor 501 connected to the outer wall of the back of the base 1, and a first transmission wheel 502 is installed on the output shaft of the servo motor 501. The first transmission wheel 502 and the second transmission wheel 504 are connected to each other through a transmission belt 503. The outer wall of the rotating shaft on one side of the second transmission wheel 504 is connected to the inner ring of another bearing, and the outer ring of the bearing is installed in the second limiting rotation hole 203. A limiting slot 505 is provided at the center of the second transmission wheel 504 and the rotating shaft set on one side. The transmission shaft 301 and the limiting bar 302 are slidably inserted in the limiting slot 505. The limiting slot 505 limits the transmission shaft 301 and the limiting bar 302 to only move vertically.

[0042] In this embodiment, the servo motor 501 drives the first transmission wheel 502 to rotate the second transmission wheel 504 through the transmission belt 503. The second transmission wheel 504 and the first transmission wheel 502 have the same diameter. After the rubber sealing ring inside the drain frame 601 is dehydrated, when the servo motor 501 is disabled, the second transmission wheel 504 will be reset to the position before rotation, which is convenient for taking the rubber sealing ring in and out for use.

[0043] As a further solution of the present invention, the drain mechanism 6 includes a drain frame 601 and three L-shaped rods 602 connected in an isosceles triangle array at the top of the drain frame 601. The bottom center part of the drain frame 601 is composed of a hollow plastic bin with buoyancy. The inner wall diameter of the drain frame 601 is the same as the outer wall diameter of the pressure holding plate 404. The shorter ends of the three L-shaped rods 602 are slidably connected to the corresponding three side columns 402.

[0044] In this embodiment, drain outlets are distributed on the drain frame 601, which can drain the accumulated water inside under the centrifugal force when the driving mechanism 5 drives it to rotate, thereby achieving the dehydration treatment of the rubber sealing ring. The bottom edges of the three L-shaped rods 602 arranged in an isosceles triangle on the drain frame 601 are facing the cover opening of the base 1, as shown in FIG. Figure 1 As shown, it is convenient to take the seal in and out of the drain frame 601 for use.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A test press for a seal, characterized in that: include: A base (1) is provided with a lifting mechanism (2) installed in the cavity of the base (1), a driving mechanism (5) is provided on the base (1), a transmission mechanism (3) is slidably plugged into the driving mechanism (5), one end of the transmission mechanism (3) is connected to a holding mechanism (4), the transmission mechanism (3) can rotate under the drive of the driving mechanism (5), and the holding mechanism (4) rotates following the transmission mechanism (3), the holding mechanism (4) is provided on the lifting mechanism (2), the holding mechanism (4) can vertically rise and fall in the cavity of the base (1) under the drive of the lifting mechanism (2), and the transmission mechanism (3) slides and plugs on the driving mechanism (5) following the rise and fall of the holding mechanism (4), and a draining mechanism (6) is slidably provided on the holding mechanism (4).

2. A seal test press according to claim 1, characterized in that: A control panel (101) is provided at an inclined surface portion on one side of the bottom of the base (1), a groove (102) is provided in the cavity of the base (1) on one side of the control panel (101), clean water is added to the groove (102), a water exchange hole is provided on the base (1) on one side of the bottom of the groove (102), mounting positions (103) are provided in the cavity of the base (1) on both sides of the groove (102), and a first position-limiting rotation hole (104) is provided at the top of the base (1) at a vertical portion of the groove (102).

3. A seal test press according to claim 1, characterized in that: The lifting mechanism (2) comprises two electric push rods (201) and a top plate (202) provided on the piston rods of the two electric push rods (201). A second position-limiting rotation hole (203) is provided at the center of the top plate (202). The two electric push rods (201) are respectively installed in the installation positions (103). The center of the second position-limiting rotation hole (203) is aligned with the center of the groove (102).

4. A seal test press according to claim 1, characterized in that: The transmission mechanism (3) comprises a transmission shaft (301), a limiting strip (302), a limiting plate (303) and an air pipe connector (304); a plurality of limiting strips (302) are arranged at equal intervals on the outer wall of the transmission shaft (301); a limiting plate (303) is arranged on the top of the transmission shaft (301); and an air pipe connector (304) connected to an external air supply pipe is arranged on the limiting plate (303); the transmission shaft (301) is provided with a hollow cavity, and the hollow cavity is used for conveying airflow.

5. A seal test press according to claim 1, characterized in that: The holding mechanism (4) comprises a rotating disk (401), a side column (402), an air delivery pipe (403), a holding disk (404) and an air hole (405). The rotating disk (401) is connected to a limit bar (302) at one end away from the limit disk (303). The center of the rotating disk (401) is aligned with the center of the transmission shaft (301). The outer wall of the rotating disk (401) is connected to the inner ring of the bearing. The outer ring of the bearing is connected to the first limit rotation hole (104). The rotating disk (401) rotates through the bearing. Connected to the first limited rotation hole (104), the rotating disk (401) is provided with four side columns (402) in a circular array on one side away from the transmission shaft (301), and a side column (402) is provided at the center of the rotating disk (401) on the same side of the four side columns (402). The other end of the side column (402) is connected to a holding disk (404), and an air hole (405) is opened at the center of the holding disk (404). The air hole (405) is communicated with the hollow cavity of the transmission shaft (301) through an air pipe (403).

6. A seal test press according to claim 1, characterized in that: The driving mechanism (5) comprises a servo motor (501) connected to the outer wall of the back of the base (1); a first transmission wheel (502) is mounted on the output shaft of the servo motor (501); the first transmission wheel (502) and the second transmission wheel (504) are connected to each other via a transmission belt (503); the outer wall of the rotating shaft on one side of the second transmission wheel (504) is connected to the inner ring of another bearing; the outer ring of the bearing is mounted in the second limited rotation hole (203); and a limited slot (505) is provided at the center of the second transmission wheel (504) and the rotating shaft arranged on one side.

7. A seal test press according to claim 4, characterized in that: The transmission shaft (301) and the limiting bar (302) are slidably plugged into the limiting slot (505), and the limiting slot (505) limits the transmission shaft (301) and the limiting bar (302) so that they can only move vertically.

8. A seal test press according to claim 1, characterized in that: The drain mechanism (6) comprises a drain frame (601) and three L-shaped rods (602) connected in an isosceles triangle array at the top of the drain frame (601). The bottom center of the drain frame (601) is composed of a hollow plastic bin with buoyancy. The inner wall diameter of the drain frame (601) is the same as the outer wall diameter of the pressure holding plate (404). The shorter ends of the three L-shaped rods (602) are slidably connected to the corresponding three side columns (402).

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