Hydraulic oil cylinder pressure test detection device and method thereof

Abstract

The invention relates to the technical field of hydraulic oil cylinders, and discloses a hydraulic oil cylinder pressure test detection device and a method thereof.The hydraulic oil cylinder pressure test detection device comprises an installation unit, a reversing unit and a limiting unit; the mounting unit comprises a mounting base, bases are fixedly mounted on the periphery of the bottom of the mounting base, supporting legs are fixedly mounted on the periphery of the upper portion of the mounting base, a top plate is fixedly mounted on the four supporting legs, a clamping assembly is arranged at the bottom of the top plate, and a workbench is further arranged on the upper portion of the mounting base. According to the device, when a moving rod makes contact with the inner wall of a first inserting groove opening, a first circular moving rod is in a continuous moving state at the moment, so that the moving rod can move under the assistance of a third sliding mechanism, and when the moving rod moves, the moving rod can be extruded to move horizontally; and the movable rod can drive the second extrusion rod to vertically move upwards under the assistance of the second sliding mechanism, so that the second extrusion rod can extrude and limit the inner wall of the first circular through hole or the second circular through hole.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic oil cylinders, and in particular relates to a hydraulic oil cylinder pressure testing device and method. Background Art

[0002] Hydraulic cylinders are widely used in industrial production, and their performance directly affects the normal operation of the equipment. In order to ensure the quality and reliability of hydraulic cylinders, they need to be pressure tested during production and maintenance.

[0003] However, when the existing hydraulic cylinders are performing pressure testing, they often need to use flat heads or heads with curved surfaces when testing the pressure of different objects. Therefore, when testing the pressure of the hydraulic cylinder on an object, it is often necessary to select different heads and then perform the test. This makes the testing process more troublesome and requires constant replacement of the hydraulic cylinder.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A hydraulic oil cylinder pressure test detection device, comprising a mounting unit, a reversing unit and a limit unit; the mounting unit comprises a mounting base, bases are fixedly mounted on the bottom of the mounting base, supporting legs are fixedly mounted on the top of the mounting base, a top plate is fixedly mounted above four supporting legs, a clamping assembly is arranged at the bottom of the top plate, a workbench is also arranged above the mounting base, and a hydraulic oil cylinder is clamped on the clamping assembly;

[0007] The reversing unit comprises a fixing plate, a first connector and a second connector are respectively mounted at both ends of the fixing plate, a first circular through hole and a second circular through hole are respectively opened at the first connector and the second connector, and the first circular through hole and the second circular through hole are symmetrical to each other and have the same size;

[0008] The limiting unit includes a first circular moving rod and a second circular moving rod, and the opposite side walls of the first circular moving rod and the second circular moving rod are each provided with a conical surface, and the opposite side walls of the first circular moving rod and the second circular moving rod are respectively provided with a first plugging slot and a second plugging slot, and the first plugging slot and the second plugging slot inner cavity are respectively provided with four first moving slots and a second moving slot distributed in a circumference, and each of the first moving slot and the second moving slot inner cavity is respectively provided with a first extrusion rod and a second extrusion rod.

[0009] As a preferred embodiment of the present invention, a fixing part is fixedly installed at the bottom of the hydraulic cylinder, a rectangular notch is opened at the bottom of the fixing part, an outer wall of the fixing part is provided with an external thread, a sleeve is sleeved on the outer wall of the fixing part, an inner cavity of the sleeve is provided with an internal thread, the internal thread and the external thread are meshed with each other, and an inner wall of the bottom of the sleeve is provided with an inner conical surface.

[0010] As a preferred embodiment of the present invention, bearings are respectively provided on two opposite side walls of the inner cavity of the rectangular slot, the two bearings are symmetrical to each other, rotating rods are provided in the inner cavities of the two bearings, and a fixing plate is fixedly mounted on the rotating rods.

[0011] As a preferred embodiment of the present invention, the two opposite side walls of the rectangular slot inner cavity are also provided with placement slots, the two placement slots are symmetrical to each other, and the inner cavities of the two placement slots are both provided with a first sliding mechanism, the first sliding mechanism includes two first sliding grooves, the two first sliding grooves are respectively provided on the inner walls of the placement slot, the two first sliding grooves are symmetrical to each other, and the first sliding rods are slidingly provided in the inner cavities of the two first sliding grooves.

[0012] As a preferred embodiment of the present invention, the two first sliding bars are symmetrical to each other, and the first circular moving bar and the second circular moving bar are fixedly installed on the opposite side walls of the two first sliding bars, and the circular mounting plates are fixedly installed on the opposite side walls of the two first sliding bars, and the first return springs are fixedly installed on the opposite ends of the two circular mounting plates, and the other ends of the two first return springs are fixedly connected to the inner wall of the rectangular groove, and the push rods are also fixedly installed on the opposite side walls of the two first sliding bars, and the two push rods are symmetrical to each other, and the two push rods are respectively movable through the fixing parts, and the other ends are respectively fitted on the inner wall of the sleeve.

[0013] As a preferred embodiment of the present invention, a third sliding mechanism is provided in the inner cavity of the second plug-in slot, and the third sliding mechanism includes two third sliding grooves, and the two third sliding grooves are respectively opened on the inner wall of the second plug-in slot, and the two third sliding grooves are symmetrical to each other. A third sliding block is slidably installed in the inner cavity of the two third sliding grooves, and the two third sliding blocks are symmetrical to each other. A moving rod is fixedly installed on one side wall opposite to the two third sliding blocks, and the moving rod and the first plug-in slot fit together.

[0014] As a preferred embodiment of the present invention, each of the first moving slot and the second moving slot inner cavity is provided with a second sliding mechanism, the second sliding mechanism includes a plurality of second slide grooves, each of the second slide grooves is opened in the inner walls of the first moving slot and the second moving slot respectively between two, each of the second slide grooves is symmetrical with each other, each of the second slide groove inner cavity is slidably installed with a second slider, each of the second sliders is symmetrical with each other, each of the second slide groove inner cavity is fixedly installed with a first extrusion rod in the first moving slot inner cavity between two, and each of the second sliders is fixedly installed with a second extrusion rod in the second moving slot inner cavity between two.

[0015] As a preferred embodiment of the present invention, a movable rod is movably mounted on one opposite end of each of the second extrusion rods, and the other end of each of the movable rods is movably connected to the moving rod.

[0016] As a preferred embodiment of the present invention, a second return spring is fixedly installed above the inner cavity of each second slide groove, the other end of each second return spring is fixedly connected to the second slider, and each of the first extrusion rod and the second extrusion rod have an inclined surface on their opposite side walls.

[0017] A hydraulic cylinder pressure test detection method, the steps are as follows:

[0018] Step 1: First, the staff places the hydraulic cylinder on the workbench, and then the staff controls the clamping assembly to move through the controller so that the clamping assembly can clamp and position the placed hydraulic cylinder;

[0019] Step 2: When the hydraulic cylinder is clamped and positioned, the staff can convert the interface of the hydraulic cylinder output end by testing different objects during the pressure test of the hydraulic cylinder as needed, that is, the staff rotates the sleeve so that the sleeve can move up with the assistance of the internal thread and the external thread, and then rotates the fixed plate so that the fixed plate can rotate with the assistance of the rotating rod and the bearing, so that the rotating rod can squeeze the first circular moving rod and the second circular moving rod with the assistance of the rotating force to move horizontally, so that the fixed plate can rotate, and the first connector and the second connector can be replaced, so that it can be suitable for different objects;

[0020] Step 3: When the first connector and the second connector are replaced, the first circular moving rod and the second circular moving rod can be inserted into the first circular through hole or the second circular through hole opened in the first connector and the second connector;

[0021] When the first and second circular moving rods are inserted into the first circular through hole or the second circular through hole, the moving rod slidably arranged at the second circular moving rod will be able to be inserted into the first plugging slot opened in the first circular moving rod. At this time, the moving rod will be able to squeeze the inclined surface of the first extrusion rod, so that the first extrusion rod will be able to move vertically upward with the assistance of the second sliding mechanism, thereby extruding and contacting the inner wall of the first circular through hole or the second circular through hole. When the moving rod contacts the inner wall of the first plugging slot, the first circular moving rod is in a state of continuing to move, so that the moving rod can move with the assistance of the third sliding mechanism. When the moving rod moves, it can squeeze the movable rod to move horizontally, so that the movable rod can drive the second extrusion rod to move vertically upward with the assistance of the second sliding mechanism, so that the second extrusion rod can squeeze and limit the inner wall of the first circular through hole or the second circular through hole.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] When the first and second circular moving rods are inserted into the first circular through hole or the second circular through hole, the moving rod slidably arranged at the second circular moving rod will be able to be inserted into the first insertion groove opened in the first circular moving rod. At this time, the moving rod will be able to squeeze the inclined surface of the first squeezing rod, so that the first squeezing rod will be able to move vertically upward with the assistance of the second sliding mechanism, thereby squeezing and contacting the inner wall of the first circular through hole or the second circular through hole. When the moving rod contacts the inner wall of the first insertion groove, the first circular moving rod is in a state of continuing to move, so that the moving rod can be moved with the assistance of the third sliding mechanism. When the moving rod moves, it can squeeze the movable rod to move horizontally, so that the movable rod can drive the second squeezing rod to move vertically upward with the assistance of the second sliding mechanism, so that the second squeezing rod can squeeze and limit the inner wall of the first circular through hole or the second circular through hole.

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached picture:

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a hydraulic cylinder pressure test detection device and method thereof;

[0027] Figure 2 It is a side structural schematic diagram of a hydraulic cylinder pressure test detection device and method thereof;

[0028] Figure 3 A schematic diagram of a hydraulic cylinder structure of a hydraulic cylinder pressure testing device and method thereof;

[0029] Figure 4 A schematic diagram of the side structure of a hydraulic cylinder of a hydraulic cylinder pressure testing device and method thereof;

[0030] Figure 5 It is a schematic diagram of a rectangular notch structure of a hydraulic cylinder pressure test detection device and method thereof;

[0031] Figure 6 It is a structural schematic diagram of a fixing plate of a hydraulic cylinder pressure testing device and method thereof;

[0032] Figure 7 It is a structural schematic diagram of a first circular moving rod and a second circular moving rod of a hydraulic oil cylinder pressure test detection device and method thereof;

[0033] Figure 8 It is a structural schematic diagram of a hydraulic oil cylinder pressure test detection device and method thereof, with a first circular movable rod and a second circular movable rod cut-away;

[0034] Fig. 9 It is a schematic structural diagram of a first circular movable rod and a second circular movable rod in cross section of a hydraulic cylinder pressure test detection device and method thereof;

[0035] Fig.10 A hydraulic cylinder pressure test detection device and method thereof Figure 8 The enlarged structural diagram at A in the middle;

[0036] Fig.11 The present invention is a schematic diagram of the casing structure when viewed from above of a hydraulic oil cylinder pressure testing device and method thereof.

[0037] In the figure:

[0038] 100, mounting unit; 101, mounting base; 1011, supporting leg; 1012, top plate; 1013, base; 102, workbench; 103, clamping assembly; 104, hydraulic cylinder;

[0039] 200, reversing unit; 201, fixing member; 2011, rectangular notch; 2012, external thread; 2013, sleeve; 2014, internal thread; 2015, inner cone; 202, fixing plate; 2021, first connector; 2022, first circular through hole; 2023, second connector; 2024, second circular through hole; 2025, rotating rod; 2026, bearing;

[0040] 300, limit unit; 301, placement slot; 3011, first slide slot; 3012, first slide bar; 3013, circular mounting plate; 3014, first return spring; 3015, push rod; 302, first circular moving rod; 3021, conical surface; 3022, first plug-in slot; 3023, first moving slot; 3024, second slide slot; 3025, second slider; 3026, second return spring; 3027, first extrusion rod; 303, second circular moving rod; 3031, moving rod; 3032, second plug-in slot; 3033, second moving slot; 3034, second extrusion rod; 3035, movable rod; 3036, third slide slot; 3037, third slider; 3038, inclined surface. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0042] Embodiment 1:

[0043] like Figures 1 to 11As shown, a hydraulic cylinder pressure test detection device includes an installation unit 100, a reversing unit 200 and a limit unit 300; the installation unit 100 includes an installation base 101, and bases 1013 are fixedly installed on all sides of the bottom of the installation base 101, and support legs 1011 are fixedly installed on all sides above the installation base 101, and a top plate 1012 is fixedly installed above the four support legs 1011, and a clamping assembly 103 is arranged at the bottom of the top plate 1012. A workbench 102 is also arranged above the installation base 101, and a hydraulic cylinder 104 is clamped on the clamping assembly 103; the reversing unit 200 includes a fixed plate 202, and a first connector 2021 and a second connector 2023 are respectively installed at both ends of the fixed plate 202, and a first circular through hole 2022 and a second circular through hole 2023 are respectively opened at the first connector 2021 and the second connector 2023. Two circular through holes 2024, the first circular through hole 2022 and the second circular through hole 2024 are symmetrical to each other and equal in size; the limiting unit 300 includes a first circular moving rod 302 and a second circular moving rod 303, and the opposite side walls of the first circular moving rod 302 and the second circular moving rod 303 are both provided with a conical surface 3021, and the opposite side walls of the first circular moving rod 302 and the second circular moving rod 303 are respectively provided with a first plug-in slot 3022 and a second plug-in slot 3032, and the inner cavities of the first plug-in slot 3022 and the second plug-in slot 3032 are respectively provided with four first moving slots 3023 and second moving slots 3033 distributed in a circle, and each of the first moving slots 3023 and the second moving slots 3033 is respectively provided with a first extrusion rod 3027 and a second extrusion rod 3034. When the first circular moving rod 302 and the second circular moving rod 303 are inserted into the first circular through hole 2022 or the second circular through hole 2024, the moving rod 3031 slidably arranged at the second circular moving rod 303 will be able to be inserted into the first insertion groove 3022 opened in the first circular moving rod 302. At this time, the moving rod 3031 will be able to squeeze the inclined surface of the first squeezing rod 3027, so that the first squeezing rod 3027 will be able to move vertically upward with the assistance of the second sliding mechanism, thereby squeezing and engaging with the inner wall of the first circular through hole 2022 or the second circular through hole 2024. When the moving rod 3031 contacts the inner wall of the first plug-in slot 3022, the first circular moving rod 302 is in a state of continuing to move, so that the moving rod 3031 can move with the assistance of the third sliding mechanism, and when the moving rod 3031 moves, it can squeeze the movable rod 3035 to move horizontally, so that the movable rod 3035 can drive the second squeezing rod 3034 to move vertically upward with the assistance of the second sliding mechanism, so that the second squeezing rod 3034 can squeeze and limit the inner wall of the first circular through hole 2022 or the second circular through hole 2024.

[0044] like Figures 1 to 5As shown, in a specific embodiment, a fixing member 201 is fixedly installed at the bottom of the hydraulic cylinder 104, a rectangular notch 2011 is opened at the bottom of the fixing member 201, an outer wall of the fixing member 201 is provided with an outer thread 2012, a sleeve 2013 is sleeved on the outer wall of the fixing member 201, an inner cavity of the sleeve 2013 is provided with an inner thread 2014, the inner thread 2014 and the outer thread 2012 are meshed with each other, and an inner conical surface 2015 is provided on the inner wall of the bottom of the sleeve 2013. In this setting, when the hydraulic cylinder 104 is clamped and positioned, the staff can switch the interface of the output end of the hydraulic cylinder 104 by testing the pressure of the hydraulic cylinder according to the needs, and the staff rotates the sleeve 2013 so that the sleeve 2013 can move upward with the assistance of the inner thread 2014 and the outer thread 2012.

[0045] like Figures 1 to 5 As shown, further, the two opposite side walls of the inner cavity of the rectangular slot 2011 are respectively provided with bearings 2026, the two bearings 2026 are symmetrical to each other, the inner cavities of the two bearings 2026 are provided with rotating rods 2025, and the fixing plate 202 is fixedly mounted on the rotating rods 2025. In this configuration, the fixing plate 202 can be rotated with the assistance of the rotating rods 2025 and the bearings 2026, so that the rotating rods 2025 can squeeze the first circular moving rod 302 and the second circular moving rod 303 with the assistance of the rotation force to move horizontally, so that the fixing plate 202 can be rotated, and the first connector 2021 and the second connector 2023 are replaced in position.

[0046] like Figures 3 to 7 As shown, further, the two opposite side walls of the inner cavity of the rectangular slot 2011 are also provided with placement slots 301, the two placement slots 301 are symmetrical to each other, and the inner cavities of the two placement slots 301 are both provided with a first sliding mechanism, the first sliding mechanism includes two first slide grooves 3011, the two first slide grooves 3011 are respectively provided on the inner walls of the placement slot 301, the two first slide grooves 3011 are symmetrical to each other, and the inner cavities of the two first slide grooves 3011 are slidably provided with a first slide rod 3012. In this setting, the installation position and components of the first sliding mechanism are determined.

[0047] like Figures 3 to 7As shown, further, the two first sliding bars 3012 are symmetrical to each other, and the opposite side walls of the two first sliding bars 3012 are respectively fixedly installed with the first circular movable bar 302 and the second circular movable bar 303, and the opposite side walls of the two first sliding bars 3012 are both fixedly installed with circular mounting plates 3013, and the two circular mounting plates 3013 are both fixedly installed with first return springs 3014 at opposite ends thereof, and the other ends of the two first return springs 3014 are respectively fixedly connected to the inner wall of the rectangular groove 2011, and the opposite side walls of the two first sliding bars 3012 are also fixedly installed with push rods 3015, and the two push rods 3015 are symmetrical to each other, and the two push rods 3015 are respectively movable and pass through the fixing member 201, and the other ends are respectively fitted on the inner wall of the sleeve 2013. In the present configuration, because the first circular movable rod 302 and the second circular movable rod 303 are respectively connected to the first sliding rod 3012 in the first sliding mechanism, wherein the first sliding rod 3012 can slide in the first sliding groove 3011, and the first sliding mechanism is arranged in the inner cavity of the placement slot 301, and the inner cavity of the placement slot 301 is provided with a first return spring 3014, wherein the other end of the first return spring 3014 is fixedly connected to the circular mounting plate 3013, and the circular mounting plate 3013 is fixedly connected to the first sliding rod 3012, therefore when the first circular movable rod 302 and the second circular movable rod 303 are respectively aligned with the first circular through hole 2022 or the second circular through hole 2024, at this time, they can be inserted into the first circular through hole 2022 or the second circular through hole 2024 under the elastic force of the first return spring 3014.

[0048] Embodiment 2:

[0049] The difference between the above embodiment and this embodiment is that: Figures 8 to 10 As shown, a hydraulic oil cylinder pressure test detection device, the inner cavity of the second plug-in slot 3032 is provided with a third sliding mechanism, the third sliding mechanism includes two third slide grooves 3036, the two third slide grooves 3036 are respectively opened on the inner wall of the second plug-in slot 3032, the two third slide grooves 3036 are symmetrical to each other, the inner cavities of the two third slide grooves 3036 are both slidably installed with third sliders 3037, the two third sliders 3037 are symmetrical to each other, the side walls opposite to the two third sliders 3037 are fixedly installed with a moving rod 3031, and the moving rod 3031 and the first plug-in slot 3022 fit each other. In this setting, the installation position and components of the third sliding mechanism are determined.

[0050] like Figures 8 to 9As shown, in a specific embodiment, each first moving slot 3023 and the second moving slot 3033 inner cavity is provided with a second sliding mechanism, and the second sliding mechanism includes a plurality of second slide grooves 3024, each second slide groove 3024 is respectively opened on the inner wall of the first moving slot 3023 and the second moving slot 3033 between two, each second slide groove 3024 is symmetrical between two, each second slide groove 3024 inner cavity is slidably installed with a second slider 3025, each second slider 3025 is symmetrical between two, each second slider 3025 is respectively fixedly installed with a first extrusion rod 3027 in the inner cavity of the first moving slot 3023 between two, and each second slider 3025 is respectively fixedly installed with a second extrusion rod 3034 in the inner cavity of the second moving slot 3033 between two. In this setting, the installation position and components of the second sliding mechanism are determined.

[0051] like Figures 8 to 9 As shown, further, each of the second extrusion rods 3034 has a movable rod 3035 movably mounted on one end opposite to the other, and the other end of each movable rod 3035 is movably connected to the moving rod 3031. In this arrangement, it is ensured that when the moving rod 3031 moves, the movable rod 3035 can be squeezed to move horizontally, so that the movable rod 3035 can drive the second extrusion rod 3034 to move vertically upward with the assistance of the second sliding mechanism, so that the second extrusion rod 3034 can squeeze and limit the inner wall of the first circular through hole 2022 or the second circular through hole 2024.

[0052] like Figures 8 to 10 As shown, further, a second return spring 3026 is fixedly installed above the inner cavity of each second slide groove 3024, and the other end of each second return spring 3026 is fixedly connected to the second slider 3025, and each first extrusion rod 3027 and second extrusion rod 3034 are provided with an inclined surface 3038 on one side wall opposite to each other. In this configuration, the installation position of the second return spring 3026 is determined.

[0053] Embodiment 3:

[0054] The present invention also discloses a hydraulic cylinder pressure testing method, the steps of which are as follows:

[0055] Step 1: First, the staff places the hydraulic cylinder 104 on the workbench 102, and then the staff controls the clamping assembly 103 to move through the controller, so that the clamping assembly 103 can clamp and position the placed hydraulic cylinder 104;

[0056] Step 2: When the hydraulic cylinder 104 is clamped and positioned, the staff can convert the interface of the output end of the hydraulic cylinder 104 by testing different objects during the pressure test of the hydraulic cylinder as needed. The specific operation steps are to rotate the sleeve 2013 so that the sleeve 2013 can move upward with the assistance of the internal thread 2014 and the external thread 2012. At this time, the fixed plate 202 is rotated so that the fixed plate 202 can rotate with the assistance of the rotating rod 2025 and the bearing 2026. Therefore, the rotating rod 2025 can squeeze the first circular moving rod 302 and the second circular moving rod 303 with the assistance of the rotating force to move horizontally, so that the fixed plate 202 can rotate, and the first connector 2021 and the second connector 2023 are replaced in position, so that they can be used for different objects.

[0057] Step 3: When the first connector 2021 and the second connector 2023 are replaced, the first circular movable rod 302 and the second circular movable rod 303 can be inserted into the first circular through hole 2022 or the second circular through hole 2024 provided in the first connector 2021 and the second connector 2023;

[0058] Step 4: When the first circular moving rod 302 and the second circular moving rod 303 are inserted into the first circular through hole 2022 or the second circular through hole 2024, the moving rod 3031 slidably arranged at the second circular moving rod 303 will be able to be inserted into the first insertion slot 3022 provided in the first circular moving rod 302. At this time, the moving rod 3031 will be able to squeeze the inclined surface of the first squeezing rod 3027, so that the first squeezing rod 3027 will be able to move vertically upward with the assistance of the second sliding mechanism, thereby squeezing the inner wall of the first circular through hole 2022 or the second circular through hole 2024. When the moving rod 3031 contacts the inner wall of the first plug-in slot 3022, the first circular moving rod 302 is in a state of continuing to move, so that the moving rod 3031 can move with the assistance of the third sliding mechanism. When the moving rod 3031 moves, it can squeeze the movable rod 3035 to move horizontally, so that the movable rod 3035 can drive the second squeezing rod 3034 to move vertically upward with the assistance of the second sliding mechanism. Therefore, the second squeezing rod 3034 can squeeze and limit the inner wall of the first circular through hole 2022 or the second circular through hole 2024.

[0059] The implementation principle of a hydraulic cylinder pressure test detection device and method of this embodiment is as follows:

[0060] First, the staff places the hydraulic cylinder 104 on the workbench 102, and then the staff controls the clamping assembly 103 to move through the controller, so that the clamping assembly 103 can clamp and position the placed hydraulic cylinder 104; when the hydraulic cylinder 104 is clamped and positioned, the staff can convert the interface of the output end of the hydraulic cylinder 104 by testing different objects during the pressure of the hydraulic cylinder as needed. The specific operation process steps are: rotate the sleeve 2013 so that the sleeve 2013 can move up with the assistance of the internal thread 2014 and the external thread 2012, and then rotate the fixed plate 202 so that the fixed plate 202 can rotate with the assistance of the rotating rod 2025 and the bearing 2026, so that the rotating rod 2025 can squeeze the first circular moving rod 302 and the second circular moving rod 303 with the assistance of the rotating force to move horizontally, so that the fixed plate 202 can rotate, and the first connector 2021 and the second connector 2023 are replaced in position, so that it can be suitable for different objects;

[0061] When the first connector 2021 and the second connector 2023 are replaced, the first circular moving rod 302 and the second circular moving rod 303 can be inserted into the first circular through hole 2022 or the second circular through hole 2024 opened in the first connector 2021 and the second connector 2023;

[0062] Because the first circular moving rod 302 and the second circular moving rod 303 are respectively connected to the first sliding rod 3012 in the first sliding mechanism, wherein the first sliding rod 3012 can slide in the first sliding groove 3011, and the first sliding mechanism is arranged in the inner cavity of the placement slot 301, and the inner cavity of the placement slot 301 is provided with a first return spring 3014, wherein the other end of the first return spring 3014 is fixedly connected to the circular mounting plate 3013, and the circular mounting plate 3013 is fixedly connected to the first sliding rod 3012, so when the first circular moving rod 302 and the second circular moving rod 303 are respectively aligned with the first circular through hole 2022 or the second circular through hole 2024, at this time, they can be inserted into the first circular through hole 2022 or the second circular through hole 2024 under the elastic force of the first return spring 3014;

[0063] When the first circular moving rod 302 and the second circular moving rod 303 are inserted into the first circular through hole 2022 or the second circular through hole 2024, the moving rod 3031 slidably arranged at the second circular moving rod 303 will be able to be inserted into the first insertion groove 3022 opened in the first circular moving rod 302. At this time, the moving rod 3031 will be able to squeeze the inclined surface of the first squeezing rod 3027, so that the first squeezing rod 3027 will be able to move vertically upward with the assistance of the second sliding mechanism, thereby squeezing and engaging with the inner wall of the first circular through hole 2022 or the second circular through hole 2024. When the moving rod 3031 contacts the inner wall of the first plug-in slot 3022, the first circular moving rod 302 is in a state of continuing to move, so that the moving rod 3031 can move with the assistance of the third sliding mechanism, and when the moving rod 3031 moves, it can squeeze the movable rod 3035 to move horizontally, so that the movable rod 3035 can drive the second squeezing rod 3034 to move vertically upward with the assistance of the second sliding mechanism, so that the second squeezing rod 3034 can squeeze and limit the inner wall of the first circular through hole 2022 or the second circular through hole 2024.

Claims

1. A hydraulic cylinder pressure test detection device, characterized in that: It comprises a mounting unit (100), a reversing unit (200) and a limiting unit (300); The mounting unit (100) comprises a mounting base (101), bases (1013) are fixedly mounted on the four sides of the bottom of the mounting base (101), supporting legs (1011) are fixedly mounted on the four sides above the mounting base (101), a top plate (1012) is fixedly mounted above the four supporting legs (1011), a clamping assembly (103) is arranged at the bottom of the top plate (1012), a workbench (102) is also arranged above the mounting base (101), and a hydraulic cylinder (104) is clamped on the clamping assembly (103); The reversing unit (200) comprises a fixing plate (202), a first connector (2021) and a second connector (2023) being respectively mounted at both ends of the fixing plate (202), a first circular through hole (2022) and a second circular through hole (2024) being respectively opened at the first connector (2021) and the second connector (2023), and the first circular through hole (2022) and the second circular through hole (2024) are symmetrical to each other and are equal in size; The limiting unit (300) comprises a first circular movable rod (302) and a second circular movable rod (303); the first circular movable rod (302) and the second circular movable rod (303) have opposite side walls each provided with a conical surface (3021); the first circular movable rod (302) and the second circular movable rod (303) have opposite side walls each provided with a first plugging slot (3022) and a second plugging slot (3032); the first plugging slot (3022) and the second plugging slot (3032) have inner cavities each provided with four first movable slots (3023) and second movable slots (3033) distributed in a circumferential manner; the inner cavities of each of the first movable slot (3023) and the second movable slot (3033) are each provided with a first extrusion rod (3027) and a second extrusion rod (3034).

2. A hydraulic cylinder pressure test detection device according to claim 1, characterized in that: A fixing part (201) is fixedly installed at the bottom of the hydraulic cylinder (104); a rectangular notch (2011) is provided at the bottom of the fixing part (201); an outer wall of the fixing part (201) is provided with an external thread (2012); a sleeve (2013) is sleeved on the outer wall of the fixing part (201); an inner cavity of the sleeve (2013) is provided with an internal thread (2014); the internal thread (2014) and the external thread (2012) are meshed with each other; and an inner conical surface (2015) is provided on the inner wall of the bottom of the sleeve (2013).

3. A hydraulic cylinder pressure test detection device according to claim 2, characterized in that: Bearings (2026) are respectively arranged on opposite side walls of the inner cavity of the rectangular notch (2011); the two bearings (2026) are symmetrical to each other; rotating rods (2025) are arranged in the inner cavities of the two bearings (2026); and a fixing plate (202) is fixedly mounted on the rotating rods (2025).

4. A hydraulic cylinder pressure test detection device according to claim 2, characterized in that: The two opposite side walls of the inner cavity of the rectangular slot (2011) are also provided with placement slots (301), the two placement slots (301) are symmetrical to each other, and the inner cavities of the two placement slots (301) are both provided with a first sliding mechanism, the first sliding mechanism includes two first sliding grooves (3011), the two first sliding grooves (3011) are respectively provided on the inner walls of the placement slot (301), the two first sliding grooves (3011) are symmetrical to each other, and the inner cavities of the two first sliding grooves (3011) are slidably provided with first sliding rods (3012).

5. A hydraulic cylinder pressure testing device according to claim 4, characterized in that: The two first sliding bars (3012) are symmetrical to each other. The first circular movable bar (302) and the second circular movable bar (303) are fixedly installed on opposite side walls of the two first sliding bars (3012), respectively. The circular mounting plates (3013) are fixedly installed on opposite side walls of the two first sliding bars (3012). The first return springs (3014) are fixedly installed on opposite ends of the two circular mounting plates (3013). The other ends of the two first return springs (3014) are respectively fixedly connected to the inner wall of the rectangular notch (2011). The push rods (3015) are also fixedly installed on the opposite side walls of the two first sliding bars (3012). The two push rods (3015) are symmetrical to each other. The two push rods (3015) are respectively movable and penetrate the fixing member (201), and the other ends are respectively fitted on the inner wall of the sleeve (2013).

6. A hydraulic cylinder pressure testing device according to claim 1, characterized in that: The inner cavity of the second plug-in slot (3032) is provided with a third sliding mechanism, and the third sliding mechanism includes two third slide grooves (3036), and the two third slide grooves (3036) are respectively opened on the inner wall of the second plug-in slot (3032), and the two third slide grooves (3036) are symmetrical to each other. The inner cavities of the two third slide grooves (3036) are both slidably installed with third sliders (3037), and the two third sliders (3037) are symmetrical to each other. A moving rod (3031) is fixedly installed on the opposite side wall of the two third sliders (3037), and the moving rod (3031) and the first plug-in slot (3022) fit with each other.

7. A hydraulic cylinder pressure testing device according to claim 1, characterized in that: Each of the first movable slot (3023) and the second movable slot (3033) is provided with a second sliding mechanism, and the second sliding mechanism includes a plurality of second slide grooves (3024), each of which is respectively opened on the inner wall of the first movable slot (3023) and the second movable slot (3033) between two, each of which is symmetrical between two, and each of which is slidably installed with a second slider (3025) in the inner cavity of each of which is symmetrical between two, and each of which is fixedly installed with a first extrusion rod (3027) in the inner cavity of the first movable slot (3023) between two, and each of which is fixedly installed with a second extrusion rod (3034) in the inner cavity of the second movable slot (3033) between two.

8. A hydraulic cylinder pressure testing device according to claim 7, characterized in that: A movable rod (3035) is movably mounted on one opposite end of each of the second extrusion rods (3034), and the other end of each of the movable rods (3035) is movably connected to the moving rod (3031).

9. A hydraulic cylinder pressure testing device according to claim 7, characterized in that: A second return spring (3026) is fixedly installed above the inner cavity of each second slide groove (3024), and the other end of each second return spring (3026) is fixedly connected to the second slider (3025). An inclined surface (3038) is provided on the opposite side walls of each first extrusion rod (3027) and the second extrusion rod (3034).

10. A hydraulic cylinder pressure test detection method, applied to a hydraulic cylinder pressure test detection device as claimed in any one of claims 1 to 9, characterized in that: The steps of the detection method are as follows: Step 1: First, the staff places the hydraulic cylinder (104) on the workbench (102), and then the staff controls the clamping assembly (103) to move through the controller, so that the clamping assembly (103) clamps and positions the placed hydraulic cylinder (104); Step 2: When the hydraulic cylinder (104) is clamped and positioned, the staff can convert the interface of the output end of the hydraulic cylinder (104) according to different objects in the process of testing the pressure of the hydraulic cylinder as needed, that is, the staff rotates the sleeve (2013) so that the sleeve (2013) moves upward with the assistance of the internal thread (2014) and the external thread (2012), and then rotates the fixed plate (202) so that the fixed plate (202) rotates with the assistance of the rotating rod (2025) and the bearing (2026), so that the rotating rod (2025) squeezes the first circular moving rod (302) and the second circular moving rod (303) with the assistance of the rotating force to move horizontally, thereby rotating the fixed plate (202) and replacing the first connector (2021) and the second connector (2023) so that they can be used for different objects; Step 3: When the first connector (2021) and the second connector (2023) are replaced, the first circular movable rod (302) and the second circular movable rod (303) are inserted into the first circular through hole (2022) or the second circular through hole (2024) provided in the first connector (2021) and the second connector (2023); Step 4: When the first circular moving rod (302) and the second circular moving rod (303) are inserted into the first circular through hole (2022) or the second circular through hole (2024), the moving rod (3031) slidably arranged at the second circular moving rod (303) will be inserted into the first insertion slot (3022) provided in the first circular moving rod (302). At this time, the moving rod (3031) will squeeze the inclined surface of the first squeezing rod (3027), so that the first squeezing rod (3027) will move vertically upward with the assistance of the second sliding mechanism, thereby being aligned with the first circular through hole (2022) or the second circular through hole (2024). ) is squeezed and contacted with the inner wall of the first plug-in slot (3022), and when the moving rod (3031) contacts the inner wall of the first plug-in slot (3022), the first circular moving rod (302) is in a state of continuing to move, allowing the moving rod (3031) to move with the assistance of the third sliding mechanism. When the moving rod (3031) moves, the squeezing movable rod (3035) is moved horizontally, so that the movable rod (3035) drives the second squeezing rod (3034) to move vertically upward with the assistance of the second sliding mechanism, so that the second squeezing rod (3034) squeezes and limits the inner wall of the first circular through hole (2022) or the second circular through hole (2024).

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