Gasket pressure-bearing performance detection equipment

By adjusting the screw to drive the inner moving block to slide and the combination design of the top clamp and the fixed plate, combined with the cooperation of the inner rotating cylinder and the lower pressure rod, the problem of stable clamping and multi-point detection of the gasket testing equipment is solved, and the efficient and accurate detection of the gasket's pressure bearing performance is achieved.

CN120948192AInactive Publication Date: 2025-11-14TAICANG XINCHENG PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202510977632.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2025-11-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing gasket pressure bearing performance testing equipment is difficult to achieve stable clamping and multi-point testing, resulting in inaccurate test results. Especially in industrial scenarios with stringent sealing requirements, it cannot fully characterize the overall pressure bearing capacity of the gasket.

Method used

The design employs a combination of adjusting screw-driven inner moving block sliding and top clamp and fixed plate to accommodate gaskets of different diameters and thicknesses. The inner rotating cylinder and the lower pressure rod work together to achieve pressure testing at different circumferential positions of the gasket. Combined with the buffer structure of the rebound frame, the stability and accuracy of the test are ensured.

Benefits of technology

It improves the reliability and accuracy of test data, can simulate the full stress state in actual working conditions, capture local performance differences of gaskets, reduce test errors, reduce equipment damage, and improve the comprehensiveness and accuracy of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides gasket pressure-bearing performance detection equipment, and relates to the technical field of detection equipment. A pressing part is arranged below the mounting part; a bottom fixing part is arranged on the mounting part; two groups of card parts are arranged in the bottom fixing part; a tablet pressing part is arranged in the bottom fixing part; the adjusting screw rod drives the inner moving block to slide along the inner moving groove so as to adapt to gaskets with different diameters; the combined design of the top clamping frame and the fixing pieces can adapt to the thickness difference of the gaskets by inserting the fixing pieces with different thicknesses, and the overturning pressing frame can perform pressure detection on different circumferential positions of the gaskets by rotating the through shafts of the gaskets, so that the limitation that only single-point testing can be performed in traditional shearing type detection is broken through, and the detection accuracy is improved. The problems that shearing type detection belongs to destructive single-time detection, only the single position of the gasket can be tested, the performance difference of different circumferential positions of the annular gasket cannot be reflected, and the whole pressure bearing capacity of the gasket cannot be comprehensively represented through the single-point detection mode are solved.
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Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a gasket pressure bearing performance testing device. Background Technology

[0002] Gaskets, as key components in the field of mechanical seals, are widely used in industrial scenarios such as petrochemicals, pipeline engineering, pressure vessels, and automobile manufacturing. In these scenarios, their function is to fill the gaps at the connection surfaces through their own deformation, preventing media leakage. Pressure bearing capacity is one of the core indicators for measuring the reliability of gasket seals. With the continuous advancement of industrial technology, more stringent requirements have been placed on gasket performance, leading to the emergence of new material-related services. These services are dedicated to developing high-performance metal-based composite gaskets, utilizing advanced material preparation processes to optimize the material's microstructure, enabling it to withstand extremely high pressure and temperature changes, ensuring the safe operation of pressure vessels. In actual working conditions, gaskets must withstand multiple loads such as media pressure, flange preload, and temperature changes. In complex actual working conditions, these factors intertwine, posing a severe test to the pressure bearing capacity of the gasket. Insufficient pressure bearing capacity may lead to leakage, equipment failure, or even safety accidents. To ensure the application of new materials in gaskets, a pressure bearing capacity testing device is needed.

[0003] Currently, gasket testing equipment commonly uses shear testing methods to test gasket pressure resistance. Since gaskets are mostly annular structures with relatively small overall volumes, their geometric shape and dimensional characteristics make stable clamping difficult during testing, requiring high uniformity of stress distribution along the annular edge. Improperly designed fixing devices can easily lead to localized stress concentration, affecting clamping stability. Furthermore, shear testing is a destructive, single-point test, only able to test a single location on the gasket, failing to reflect performance differences across different circumferential positions. This single-point testing mode is insufficient to comprehensively characterize the overall pressure resistance of the gasket, especially in industrial scenarios with stringent sealing requirements. Summary of the Invention

[0004] This invention relates to a gasket pressure bearing performance testing device, which has a base and a pressing part. An adjusting screw drives an inner moving block to slide along an inner moving groove, which can adapt to gaskets of different diameters. The combination design of the top clamp and the fixing plate can adapt to the thickness difference of the gasket by inserting fixing plates of different thicknesses, solving the problem of poor compatibility of gasket specifications in traditional equipment. The lower pressing rod drives the flipping pressing frame to press the gasket to maintain stability during the testing process. By rotating the through shaft of the gasket, the flipping pressing frame can apply pressure to different circumferential positions of the gasket for testing, breaking through the limitation of traditional shear-type testing which can only test at a single point.

[0005] This invention provides a gasket pressure bearing performance testing device, specifically comprising: a mounting part; a pressing part below the mounting part; a bottom fixing part on the mounting part; the bottom fixing part including a bottom fixing plate; a guide cylinder fixedly connected to the top of the bottom fixing plate; four sets of circumferentially distributed inner grooves on the inner wall of the guide cylinder; two sets of opposing cross braces fixedly connected to the outer wall of the guide cylinder; inner displacement grooves respectively formed inside the two sets of cross braces; two sets of card parts inside the bottom fixing part; each set of card parts including an inner displacement block; the inner displacement block being slidably connected in a corresponding inner displacement groove; and an adjusting screw threadedly connected to the middle position of the inner displacement block. The inner moving block is connected to a rectangular frame structure with a top card holder fixed to the top. The top card holder has a docking hole. A fixing piece is inserted inside the docking hole. The bottom fixed part has a pressing part inside. The pressing part includes a rebound frame. The rebound frame is slidably connected to the cylindrical groove of the guide tube. The top of the guide tube is threadedly connected to a locking cylinder. An inner rotating cylinder is rotatably connected inside the locking cylinder. A lower pressure rod is slidably connected inside the inner rotating cylinder. A synchronization slot is opened at the center of the bottom of the lower pressure rod. Two sets of opposing flipping grooves are opened at the bottom of the lower pressure rod. A flipping pressure frame is rotatably connected inside each of the two sets of flipping grooves.

[0006] Preferably, the mounting part includes a fixing frame; the fixing frame is provided with two sets of brackets; a horizontal mounting plate is fixedly connected to the two sets of brackets of the fixing frame; two sets of circular through holes are opened on the horizontal mounting plate; a pressing cylinder is fixedly connected to the middle position of the horizontal mounting plate; and a driving block is connected to the end of the telescopic shaft of the pressing cylinder.

[0007] Preferably, the pressing part includes two sets of stabilizing rods; the two sets of stabilizing rods are slidably connected in corresponding circular through holes on the horizontal mounting plate; a synchronization plate is fixedly connected to the bottom of the two sets of stabilizing rods; a bottom mounting plate is fixedly connected to the bottom of the synchronization plate; a detection pressure block is fixedly connected to the middle position of the bottom of the bottom mounting plate; a pressure sensor is provided inside the detection pressure block.

[0008] Preferably, the bottom plate is fixed to the fixing frame; a cylindrical groove is provided in the middle of the guide tube, the cylindrical groove of the guide tube is connected to two sets of rectangular through holes, and the outer wall of the top end of the guide tube is provided with threads.

[0009] Preferably, the two sets of cross braces are respectively configured as cuboid structures; the inner moving grooves are respectively configured as rectangular grooves, and the inner moving grooves are connected to rectangular sliding grooves.

[0010] Preferably, the inner moving block is configured as a rectangular block structure, with a threaded through hole fixedly connected to the middle position of the inner moving block, and a rectangular protrusion fixedly connected to the outer wall of the inner moving block for sliding within the rectangular sliding groove connected to the inner moving groove. The inner moving block is fixedly connected to a rectangular frame structure through the rectangular protrusion; the adjusting screw is connected to a rotating handle.

[0011] Preferably, four sets of rectangular protrusions for sliding connection to the corresponding inner groove are fixed on the outer wall of the rebound frame; a spring for buffering is provided at the bottom of the rebound frame; a rectangular protrusion is provided at the top of the rebound frame; a rectangular protrusion for sliding in the rectangular through hole on the guide tube is fixed on the outer wall of the rebound frame; and a rod is provided on the rectangular protrusion of the rebound frame.

[0012] Preferably, the inner wall of the inner rotating cylinder is provided with two sets of opposing rectangular protrusions; the outer wall of the pressing rod is provided with two sets of rectangular grooves for cooperating with the rectangular protrusions on the inner rotating cylinder; the inside of the synchronization slot is slidably connected to the rectangular protrusion at the top of the rebound frame; and the inside of the flipping groove is provided with a rotating rod.

[0013] Preferably, the flipping pressure frame has a circular through hole for inserting the rod on the rebound frame; a top pressure block is fixed to the top of the lower pressure rod; an alignment groove is provided at the middle of the top of the top pressure block; a detection pressure block can be inserted into the alignment groove.

[0014] The gasket pressure bearing performance testing device provided by this invention has the following beneficial effects: In this invention, two sets of adjustable card sections are used to drive the inner moving block to slide along the inner moving groove using an adjusting screw. Combined with the cooperation of the top card holder and the fixing plate, it can quickly adapt to annular gaskets of different diameters and thicknesses. Compared with the traditional fixing method, this structure can avoid detection errors caused by the gasket shifting due to force during the detection process. Especially for easily sliding annular gaskets, the tight fit between the fixing plate and the edge of the gasket can significantly reduce the positional deviation during detection and improve the reliability of the detection data.

[0015] In addition, the inner rotating cylinder and the lower pressure rod can drive the flipping pressure frame to rotate circumferentially, realizing pressure testing at different circumferential positions of the gasket. At the same time, the flipping pressure frame applies uniform pressure to the surface of the gasket, which not only simulates the overall stress state in actual working conditions, but also captures the local performance differences of the gasket caused by material inhomogeneity or processing defects through multi-point detection.

[0016] In addition, the spring structure at the bottom of the rebound frame can not only drive the pressing part to automatically reset after the test is completed, reducing manual intervention, but also play a buffering role during the pressure application process, avoiding impact damage to the gasket and equipment components caused by instantaneous high pressure. At the same time, the linkage design between the flipping pressing frame and the rebound frame can quickly reset after the test, which is convenient for the removal and replacement of the gasket.

[0017] In addition, the downward pressure section ensures that the pressure direction of the detection pressure block is always perpendicular to the surface of the gasket through the sliding cooperation of two sets of stabilizing rods and the horizontal mounting plate, avoiding the distortion of pressure sensor data caused by off-center loading. Furthermore, the precise docking of the alignment groove of the top pressure block with the detection pressure block further ensures the stability of pressure transmission and greatly improves the accuracy of the test results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 A schematic diagram of a three-dimensional assembly structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the three-dimensional assembly bottom view structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the exploded structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the exploded bottom view structure according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a partially cut-out structure according to an embodiment of the present invention is shown; Figure 6 The invention is illustrated by an embodiment of the invention. Figure 5 A schematic diagram of the enlarged structure of section A; Figure 7 A schematic diagram of the mounting assembly structure according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the pressing part assembly structure according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of the bottom fixing assembly structure according to an embodiment of the present invention is shown; Figure 10 A schematic diagram of the card assembly structure according to an embodiment of the present invention is shown; Figure 11 A schematic diagram of the tablet compression assembly structure according to an embodiment of the present invention is shown.

[0021] List of reference numerals 1. Installation section; 101. Fixing frame; 102. Horizontal mounting plate; 103. Extrusion cylinder; 104. Driving block; 2. Lower pressing section; 201. Stabilizer bar; 202. Synchronization plate; 203. Bottom mounting plate; 204. Detection pressure block; 3. Bottom fixing part; 301. Bottom fixing plate; 302. Guide tube; 303. Inner beam groove; 304. Horizontal support frame; 305. Inner shift groove; 4. Card section; 401. Inner moving block; 402. Adjusting screw; 403. Top card bracket; 404. Connecting hole; 405. Fixing plate; 5. Tableting section; 501. Rebound frame; 502. Locking cylinder; 503. Inner rotating cylinder; 504. Lower pressure rod; 505. Synchronization slot; 506. Tilting slot; 507. Tilting pressure frame; 508. Top pressure block; 509. Alignment slot. Detailed Implementation

[0022] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0023] Example 1: Please refer to Figures 1 to 11This invention proposes a gasket pressure bearing performance testing device, comprising: a mounting part 1; a pressing part 2 below the mounting part 1; a bottom fixing part 3 on the mounting part 1; the bottom fixing part 3 includes a bottom fixing plate 301; the bottom fixing plate 301 is used to assist in the installation and fixation of other structures of the bottom fixing part 3, so as to facilitate the overall stability of the bottom fixing part 3; a guide cylinder 302 is fixedly connected to the top of the bottom fixing plate 301; the guide cylinder 302 is used to cooperate with the inner constriction groove 303 to constrain the pressing part 5, so as to facilitate its stability during the adjustment process; four sets of circumferentially distributed inner constriction grooves 303 are opened on the inner wall of the guide cylinder 302; the inner constriction grooves 303 are used to constrain the pressing part 5, so as to facilitate its stability during the adjustment process; the guide cylinder 302... Two sets of opposing horizontal support frames 304 are fixed to the outer wall. The horizontal support frames 304 are used to fix the card part 4 in conjunction with the inner shift groove 305 to maintain its stability during adjustment and to support the gasket. The inner shift groove 305 is opened inside the two sets of horizontal support frames 304. The inner shift groove 305 is used to assist in the installation of the inner shift block 401 to facilitate its position adjustment and to keep the gasket stable. The bottom fixed part 3 is provided with two sets of card parts 4. The two sets of card parts 4 each include an inner shift block 401. The inner shift block 401 is slidably connected in the corresponding inner shift groove 305. The inner shift block 401 is used to adjust its position under the action of the adjusting screw 402 to facilitate the top card frame 403 to clamp the gasket and facilitate its adjustment. The inner moving block 401 is threadedly connected to an adjusting screw 402 at its center position. The adjusting screw 402 is used to adjust the inner moving block 401 during rotation to facilitate clamping of gaskets of different diameters. The inner moving block 401 is connected to a rectangular frame structure with a top clamping bracket 403 fixed to its top. The top clamping bracket 403 is used to fix the gasket with a fixing plate 405 to maintain the stability of the gasket during testing and facilitate the testing of its pressure-bearing performance. The top clamping bracket 403 has a mating insertion hole 404. The mating insertion hole 404 is used to assist in the insertion of the fixing plate 405 to maintain its stability and facilitate its use. The fixing plate 405 is inserted into the mating insertion hole 404. 5 is used for position adjustment under the drive of the inner moving block 401, so as to facilitate the fixing of the pad with the top clamp 403 and to keep it stable during the testing process; the bottom fixed part 3 is provided with a pressing part 5; the pressing part 5 includes a rebound frame 501; the rebound frame 501 is slidably connected in the cylindrical groove of the guide tube 302; the rebound frame 501 is used for buffering by the bottom spring, and at the same time, when the lower pressing part 2 moves upward, it drives the pressing part 5 to reset as a whole; the top of the guide tube 302 is threadedly connected to a locking cylinder 502; the locking cylinder 502 is used to cooperate with the inner rotating cylinder 503 to constrain the lower pressing rod 504 to keep it stable during the adjustment process; the inner rotating cylinder 503 is rotatably connected inside the locking cylinder 502;The inner rotating cylinder 503 is used to constrain the downward pressure rod 504 while maintaining rotation between itself and the locking cylinder 502, keeping both in a sliding state. The downward pressure rod 504 is slidably connected inside the inner rotating cylinder 503. The downward pressure rod 504 is used to move the rotating pressure frame 507 downward under the action of the top pressure block 508, facilitating the testing and processing of the pressure-bearing performance of the gasket. A synchronization slot 505 is provided at the center of the bottom of the downward pressure rod 504. The synchronization slot 505 is used to assist in the movement of the rectangular part at the top of the rebound frame 501. The main body structure is connected to maintain relative stability between the two; the bottom of the lower pressure rod 504 has two sets of opposing flipping grooves 506; the flipping grooves 506 are used to assist in the installation of the flipping pressure frame 507 to facilitate its flipping adjustment; the flipping pressure frame 507 is rotatably connected inside the two sets of flipping grooves 506 respectively; the flipping pressure frame 507 is used to maintain stability under the constraint of the rebound frame 501 and the lower pressure rod 504, so as to apply pressure to the gasket during the downward movement, which facilitates the testing and processing of the gasket's pressure-bearing performance.

[0024] Example 2: Based on Example 1, as follows Figures 1 to 11 As shown, the mounting part 1 includes a fixing frame 101; the fixing frame 101 is provided with two sets of brackets; the fixing frame 101 is used to assist in the installation and fixing of other structures of the equipment, so as to facilitate stability during the testing of the gasket; a horizontal mounting plate 102 is fixedly connected to the two sets of brackets of the fixing frame 101; the horizontal mounting plate 102 is provided with two sets of circular through holes; the horizontal mounting plate 102 is used to fix the pressing cylinder 103, so as to facilitate its stability during the pressing process; the pressing cylinder 103 is fixedly connected to the middle position of the horizontal mounting plate 102; the pressing cylinder 103 is used to control the lifting and lowering adjustment of the drive block 104, so as to drive the pressing part 2 to press down and apply pressure to the gasket; the telescopic shaft end of the pressing cylinder 103 is connected to the drive block 104; the drive block 104 is used to lift and lower under the drive of the pressing cylinder 103, so as to facilitate the lifting and lowering adjustment of the pressing part 2, and facilitate the pressing of the gasket.

[0025] The pressing part 2 includes two sets of stabilizing rods 201; the two sets of stabilizing rods 201 are slidably connected in corresponding circular through holes on the horizontal mounting plate 102; the stabilizing rods 201 help maintain the stability of the pressing part 2 during the adjustment process; a synchronization plate 202 is fixedly connected to the bottom of the two sets of stabilizing rods 201; the synchronization plate 202 is used to connect the bottom mounting plate 203 and the stabilizing rods 201; the bottom of the synchronization plate 202 is fixedly connected to the bottom mounting plate 203; the bottom mounting plate 203 is used to install the detection pressure block 204 to facilitate its stability; the detection pressure block 204 is fixedly connected to the middle position of the bottom of the bottom mounting plate 203; a pressure sensor is provided inside the detection pressure block 204; the detection pressure block 204 is used to detect the pressure bearing performance of the gasket through the pressure sensor during the pressing process.

[0026] The bottom plate 301 is fixed to the fixing frame 101; a cylindrical groove is provided in the middle of the guide tube 302, and the cylindrical groove of the guide tube 302 is connected to two sets of rectangular through holes. The top end of the guide tube 302 is provided with threads.

[0027] The two sets of cross braces 304 are respectively set as cuboid structures; the inner sliding grooves 305 are respectively set as rectangular grooves, and the inner sliding grooves 305 are connected to rectangular sliding grooves.

[0028] The inner moving block 401 is configured as a rectangular block structure. A threaded through hole is fixedly connected to the middle position of the inner moving block 401. A rectangular protrusion for sliding in the rectangular sliding groove connected to the inner moving groove 305 is fixedly connected to the outer wall of the inner moving block 401. The inner moving block 401 is fixedly connected to a rectangular frame structure through the rectangular protrusion. The adjusting screw 402 is connected to a rotating handle.

[0029] Four sets of rectangular protrusions are fixedly connected to the outer wall of the rebound frame 501 for sliding connection to the corresponding inner groove 303. The bottom of the rebound frame 501 is provided with a spring for buffering, and the top of the rebound frame 501 is provided with a rectangular protrusion. The outer wall of the rebound frame 501 is fixedly connected with a rectangular protrusion for sliding in the rectangular through hole on the guide tube 302. The rectangular protrusion of the rebound frame 501 is provided with a rod.

[0030] The inner wall of the inner rotating cylinder 503 is provided with two sets of opposing rectangular protrusions; the outer wall of the pressure rod 504 is provided with two sets of rectangular grooves for cooperating with the rectangular protrusions on the inner rotating cylinder 503; the inner cavity of the synchronization slot 505 is slidably connected to the rectangular protrusion on the top of the rebound frame 501; the inner cavity of the flipping groove 506 is provided with a rotating rod.

[0031] The flipping pressure frame 507 has a circular through hole for inserting the rod of the rebound frame 501; the top of the lower pressure rod 504 is fixedly connected to the top pressure block 508; the top pressure block 508 is used to mate with the alignment groove 509 and the detection pressure block 204 to facilitate the application of pressure to the gasket; the top pressure block 508 has an alignment groove 509 at the middle of its top; the detection pressure block 204 can be inserted into the alignment groove 509; the alignment groove 509 is used to assist the detection pressure block 204 and the top pressure block 508 in mate, so as to facilitate the testing of the pressure bearing performance of the gasket.

[0032] The specific usage and function of this embodiment are as follows: In this invention, the locking cylinder 502 is threadedly connected to the top of the guide cylinder 302. After the inner rotating cylinder 503 is fitted into the locking cylinder 502, the lower pressure rod 504 is inserted into the inner rotating cylinder 503 to ensure that the outer wall groove and the rectangular protrusion of the inner rotating cylinder 503 slide in cooperation. The flipping pressure frame 507 is connected to the flipping groove 506 through the rotating rod, and the insertion rod on the side wall of the rebound frame 501 is inserted into the circular through hole of the flipping pressure frame 507. Finally, the top pressure block 508 is welded to the top of the lower pressure rod 504. According to the diameter of the gasket to be tested, the two sets of adjusting screws 402 are rotated, and the top clamping frame 403 is driven to move synchronously along the inner moving groove 305 through the inner moving block 401, so that the distance between the fixing pieces 405 of the two sets of top clamping frames 403 matches the outer diameter of the gasket. The annular gasket is placed between the top clamping frames 403, and the adjusting screws 402 are finely adjusted to... The fixed plate 405 is in close contact with the edge of the gasket. At this time, the center of the gasket coincides with the axis of the guide tube 302. The moving extrusion cylinder 103 drives the block 104 to push the stabilizing rod 201 of the lower pressure part 2 down along the through hole of the horizontal plate 102. The detection pressure block 204 is gradually inserted into the alignment groove 509 of the top pressure block 508. As the extrusion cylinder 103 continues to apply pressure, the lower pressure rod 504 drives the flipping pressure frame 507 to move downward. The bottom spring of the rebound frame 501 is compressed. The flipping pressure frame 507 applies pressure to the gasket under the action of the top pressure block 508 and the lower pressure rod 504. The pressure sensor collects pressure data in real time and transmits it to the terminal. After a single test is completed, the extrusion cylinder 103 drives the lower pressure part 2 to move upward. The rebound frame 501 is reset under the action of the spring force. Then the gasket is rotated and the above test steps are repeated to achieve a comparison of multi-point pressure bearing performance.

[0033] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0034] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0035] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A gasket pressure bearing performance testing device, comprising: Mounting part (1); characterized in that a pressing part (2) is provided below the mounting part (1); a bottom fixing part (3) is provided on the mounting part (1); the bottom fixing part (3) includes a bottom fixing plate (301); a guide tube (302) is fixedly connected to the top of the bottom fixing plate (301); four sets of circumferentially distributed inner beam grooves (303) are opened on the inner wall of the guide tube (302); two sets of opposing cross braces are fixedly connected to the outer wall of the guide tube (302). 304); the interiors of the two sets of cross braces (304) are respectively provided with inner shift grooves (305); the interior of the bottom fixing part (3) is provided with two sets of card parts (4); the two sets of card parts (4) respectively include inner shift blocks (401); the inner shift blocks (401) are slidably connected in the corresponding inner shift grooves (305); an adjusting screw (402) is threadedly connected to the middle position of the inner shift block (401); the inner shift block (401) is connected to a rectangular frame. A top bracket (403) is fixedly connected to the top of the structure; a docking hole (404) is provided on the top bracket (403); a fixing piece (405) is inserted inside the docking hole (404); a pressing part (5) is provided inside the bottom fixed part (3); the pressing part (5) includes a rebound frame (501); the rebound frame (501) is slidably connected in the cylindrical groove of the guide tube (302); a locking cylinder (502) is threadedly connected to the top of the guide tube (302); an inner rotating cylinder (503) is rotatably connected inside the locking cylinder (502); a lower pressure rod (504) is slidably connected inside the inner rotating cylinder (503); a synchronous slot (505) is provided at the center of the bottom of the lower pressure rod (504); two sets of opposing flip grooves (506) are provided at the bottom of the lower pressure rod (504); flip pressure frames (507) are rotatably connected inside the two sets of flip grooves (506).

2. The gasket pressure bearing performance testing device according to claim 1, characterized in that: The mounting part (1) includes a fixing frame (101); the fixing frame (101) is provided with two sets of brackets; a horizontal mounting plate (102) is fixedly connected to the two sets of brackets of the fixing frame (101); two sets of circular through holes are opened on the horizontal mounting plate (102); a pressing cylinder (103) is fixedly connected to the middle position of the horizontal mounting plate (102); a driving block (104) is connected to the end of the telescopic shaft of the pressing cylinder (103).

3. The gasket pressure bearing performance testing device according to claim 2, characterized in that: The pressing part (2) includes two sets of stabilizing rods (201); the two sets of stabilizing rods (201) are slidably connected in corresponding circular through holes on the horizontal mounting plate (102); a synchronization plate (202) is fixedly connected to the bottom of the two sets of stabilizing rods (201); a bottom mounting plate (203) is fixedly connected to the bottom of the synchronization plate (202); a detection pressure block (204) is fixedly connected to the middle position of the bottom of the bottom mounting plate (203); a pressure sensor is provided inside the detection pressure block (204).

4. The gasket pressure bearing performance testing device according to claim 2, characterized in that: The bottom plate (301) is fixed to the fixing frame (101); a cylindrical groove is provided in the middle of the guide tube (302), and the cylindrical groove of the guide tube (302) is connected to two sets of rectangular through holes. The top end of the guide tube (302) is provided with threads.

5. The gasket pressure bearing performance testing device according to claim 1, characterized in that: The two sets of cross braces (304) are respectively set as cuboid structures; the inner sliding grooves (305) are respectively set as rectangular grooves, and the inner sliding grooves (305) are connected to rectangular sliding grooves.

6. The gasket pressure bearing performance testing device according to claim 1, characterized in that: The inner moving block (401) is configured as a rectangular block structure. A threaded through hole is fixedly connected to the middle position of the inner moving block (401). A rectangular protrusion for sliding in the rectangular sliding groove connected to the inner moving groove (305) is fixedly connected to the outer wall of the inner moving block (401). A rectangular frame structure is fixedly connected to the inner moving block (401) through the rectangular protrusion. The adjusting screw (402) is connected to a rotating handle.

7. The gasket pressure bearing performance testing device according to claim 1, characterized in that: Four sets of rectangular protrusions for sliding connection to the corresponding inner groove (303) are fixed on the outer wall of the rebound frame (501). The bottom of the rebound frame (501) is provided with a spring for buffering. The top of the rebound frame (501) is provided with a rectangular protrusion. The outer wall of the rebound frame (501) is fixed with a rectangular protrusion for sliding in the rectangular through hole on the guide tube (302). The rectangular protrusion of the rebound frame (501) is provided with a rod.

8. The gasket pressure bearing performance testing device according to claim 1, characterized in that: The inner wall of the inner rotating cylinder (503) is provided with two sets of opposing rectangular protrusions; the outer wall of the pressing rod (504) is provided with two sets of rectangular grooves for cooperating with the rectangular protrusions on the inner rotating cylinder (503); the inside of the synchronization slot (505) is slidably connected to the rectangular protrusion at the top of the rebound frame (501); the inside of the flipping groove (506) is provided with a rotating rod.

9. The gasket pressure bearing performance testing device according to claim 3, characterized in that: The flipping pressure frame (507) has a circular through hole for inserting the rod on the rebound frame (501); the top of the lower pressure rod (504) is fixedly connected to a top pressure block (508); the top of the top pressure block (508) has an alignment groove (509) at the middle position; the alignment groove (509) can be used to insert a detection pressure block (204).