Hydraulic cylinder pressure test detection device and method

Abstract

The present invention relates to the technical field of hydraulic cylinders, and discloses a hydraulic cylinder pressure test detection device and method thereof, comprising an installation unit, a reversing unit, and a limiting unit; the installation unit comprises an installation base, bases are fixedly installed on all four sides of the bottom of the installation base, support legs are fixedly installed on all four sides above the installation base, a top plate is fixedly installed above the four support legs, a clamping assembly is provided at the bottom of the top plate, and a workbench is also provided above the installation base. According to the present invention, when the moving rod contacts the inner wall of the first plug-in slot, 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 a third sliding mechanism, and 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.

Description

Technical Field

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

[0002] Hydraulic cylinders are widely used in industrial production, and their performance directly affects the normal operation of equipment. 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 the 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 cylinder pressure test device includes a mounting unit, a reversing unit, and a limit unit; the mounting unit includes a mounting base, bases are fixedly mounted on the bottom of the mounting base, support legs are fixedly mounted on the top of the mounting base, a top plate is fixedly mounted above the four support legs, a clamping assembly is provided at the bottom of the top plate, a workbench is further provided above the mounting base, and a hydraulic cylinder is clamped on the clamping assembly;

[0007] The reversing unit includes a fixed plate, with a first connector and a second connector mounted on both ends of the fixed plate, respectively. The first connector and the second connector are respectively provided with a first circular through hole and a second circular through hole, and the first circular through hole and the second circular through hole are symmetrical to each other and equal in size.

[0008] The limiting unit includes a first circular movable rod and a second circular movable rod, and the opposite side walls of the first circular movable rod and the second circular movable rod are both provided with a conical surface, and the opposite side walls of the first circular movable rod and the second circular movable rod are respectively provided with a first plug-in slot and a second plug-in slot, and the inner cavities of the first plug-in slot and the second plug-in slot are respectively provided with four first movable slots and a second movable slot distributed in a circumferential manner, and each of the inner cavities of the first movable slot and the second movable slot 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 external thread is provided on the outer wall of the fixing part, a sleeve is sleeved on the outer wall of the fixing part, an internal thread is provided in the inner cavity of the sleeve, the internal thread and the external thread are engaged with each other, and an inner conical surface is provided on the inner wall of the bottom of the sleeve.

[0010] As a preferred embodiment of the present invention, bearings are respectively provided on the two opposite side walls of the rectangular slot inner cavity, the two bearings are symmetrical to each other, and rotating rods are provided in the two bearing inner cavities, and a fixing plate is fixedly installed 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 further 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 opened 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 with each other, and the two opposite side walls of the first sliding bars are respectively fixedly installed with a first circular moving bar and a second circular moving bar, and the two opposite side walls of the first sliding bars are respectively fixedly installed with a circular mounting plate, and the two opposite ends of the circular mounting plates are fixedly installed with a first return spring, and the other ends of the two first return springs are respectively fixedly connected to the inner wall of the rectangular slot, and the two opposite side walls of the first sliding bars are also fixedly installed with a push rod, and the two push rods are symmetrical with 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 slider is slidably installed in the inner cavity of the two third sliding grooves, and the two third sliders are symmetrical to each other. A moving rod is fixedly installed on the opposite side wall of the two third sliders, 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 respectively opened on the inner wall of the first moving slot and the second moving slot 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 sliders is respectively fixedly installed with a first extrusion rod in the inner cavity of the first moving slot between two, and each of the second sliders is respectively fixedly installed with a second extrusion rod in the inner cavity of the second moving slot between two.

[0015] As a preferred embodiment of the present invention, each of the second extrusion rods has a movable rod movably mounted on one opposite end thereof, 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 method, the steps are as follows:

[0018] Step 1: First, the staff places the hydraulic cylinder on the workbench. At this time, the staff controls the clamping assembly to move through the controller so that the clamping assembly can clamp and position the 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 be rotated, and the position of 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 movable rod and the second circular movable rod can be inserted into the first circular through hole or the second circular through hole provided in the first connector and the second connector;

[0021] When the second circular moving rod is in contact with the inner wall of the first circular through hole or the second circular through hole, the first circular moving rod is in a state of continuing to move, so that the moving rod can move horizontally with the assistance of the third sliding mechanism, so that the moving rod can drive the second extruding rod to move vertically upward with the assistance of the second sliding mechanism, so that the second extruding 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 second circular moving rod is in contact with the inner wall of the first circular through hole or the second circular through hole, the first circular moving rod is in a state of continuing to move, thereby enabling the moving rod to move horizontally with the assistance of the third sliding mechanism. When the moving rod moves, the movable rod can be squeezed 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, thereby enabling the second squeezing rod to squeeze and limit the inner wall of the first circular through hole or the second circular through hole.

[0024] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached figure:

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

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

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

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

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

[0031] Figure 6 It is a schematic diagram of the fixed plate structure of a hydraulic cylinder pressure test detection device and method thereof;

[0032] Figure 7 Schematic diagram of the structure of a first circular movable rod and a second circular movable rod of a hydraulic cylinder pressure test detection device and method thereof;

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

[0034] Figure 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] Figure 10 A hydraulic cylinder pressure test detection device and method Figure 8 A in the middle is an enlarged structural diagram;

[0036] Figure 11 The present invention is a schematic diagram of the casing structure from a bottom view of a hydraulic cylinder pressure test detection device and method.

[0037] In the picture:

[0038] 100, mounting unit; 101, mounting base; 1011, support 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, limiting unit; 301, placement slot; 3011, first slide; 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; 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; 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] Example 1:

[0043] like Figures 1 to 11As shown, a hydraulic cylinder pressure test detection device includes a mounting unit 100, a reversing unit 200 and a limit unit 300; the mounting unit 100 includes a mounting base 101, bases 1013 are fixedly installed on all four sides of the bottom of the mounting base 101, supporting legs 1011 are fixedly installed on all four sides above the mounting base 101, a top plate 1012 is fixedly installed above the four supporting legs 1011, a clamping assembly 103 is provided at the bottom of the top plate 1012, a workbench 102 is further provided above the mounting base 101, and a hydraulic cylinder 104 is clamped on the clamping assembly 103; the reversing unit 200 includes a fixed plate 202, 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 circular pattern, and the inner cavities of each first moving slot 3023 and the second moving slot 3033 are 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 contacting 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. When the moving rod 3031 moves, it will be able to 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 mounted on the bottom of the hydraulic cylinder 104. The fixing member 201 has a rectangular notch 2011 at the bottom. The outer wall of the fixing member 201 is provided with an external thread 2012. A sleeve 2013 is sleeved on the outer wall of the fixing member 201. The 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. The inner wall of the bottom of the sleeve 2013 is provided with an inner conical surface 2015. In this configuration, when the hydraulic cylinder 104 is clamped and positioned, the operator can switch the interface of the output end of the hydraulic cylinder 104 by using different objects during the pressure test of the hydraulic cylinder as needed. The operator rotates the sleeve 2013, so that the sleeve 2013 can move upward with the help of the internal thread 2014 and the external thread 2012.

[0045] like Figures 1 to 5 As shown, bearings 2026 are further provided on opposite sides of the inner cavity of the rectangular notch 2011. The two bearings 2026 are symmetrical to each other. Rotating rods 2025 are provided in the inner cavities of the two bearings 2026. The fixing plate 202 is fixedly mounted on the rotating rods 2025. In this arrangement, the fixing plate 202 can be rotated by rotating the fixing plate 202 with the assistance of the rotating rods 2025 and the bearings 2026. Therefore, the rotating rods 2025 can compress the first circular movable rod 302 and the second circular movable rod 303 with the assistance of the rotational force, thereby causing the fixing plate 202 to rotate and replace the first connector 2021 and the second connector 2023.

[0046] like Figures 3 to 7 As shown, further, the two opposite walls of the inner cavity of the rectangular slot 2011 are further provided with placement slots 301. The two placement slots 301 are symmetrical with each other. 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 with each other. The inner cavities of the two first sliding grooves 3011 are slidably provided with first sliding rods 3012. In this configuration, the installation position and components of the first sliding mechanism are determined.

[0047] like Figures 3 to 7As shown, further, the two first sliding rods 3012 are symmetrical with each other, and the opposite side walls of the two first sliding rods 3012 are respectively fixedly installed with the first circular movable rod 302 and the second circular movable rod 303, and the opposite side walls of the two first sliding rods 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 slot 2011, and the opposite side walls of the two first sliding rods 3012 are also fixedly installed with push rods 3015, and the two push rods 3015 are symmetrical with each other, and the two push rods 3015 are respectively movable through the fixing member 201, and the other ends are respectively fitted on the inner wall of the sleeve 2013. In this setting, 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] Example 2:

[0049] The difference between the above embodiment and this embodiment is that: Figures 8 to 10 As shown, a hydraulic cylinder pressure test device is provided. The second insertion slot 3032 has a third sliding mechanism disposed within it. The third sliding mechanism comprises two third chutes 3036, each symmetrically disposed within the inner wall of the second insertion slot 3032. A third slider 3037 is slidably mounted within each of the two third chutes 3036. The two sliders 3037 are symmetrically mounted within them. A movable rod 3031 is fixedly mounted on opposing side walls of the two sliders 3037. The movable rod 3031 engages with the first insertion slot 3022. This configuration defines the installation position and components of the third sliding mechanism.

[0050] like Figures 8 and 9As shown, in a specific embodiment, each first movable slot 3023 and second movable slot 3033 inner cavity is provided with a second sliding mechanism, which includes a plurality of second chutes 3024. Each second chutes 3024 is respectively provided on the inner wall of the first movable slot 3023 and the second movable slot 3033 between two pairs. Each second chutes 3024 is symmetrical with each other. A second slider 3025 is slidably mounted in the inner cavity of each second chutes 3024. Each second slider 3025 is symmetrical with each other. A first extrusion rod 3027 is fixedly mounted in the inner cavity of the first movable slot 3023 between two pairs of second sliders 3025. A second extrusion rod 3034 is fixedly mounted in the inner cavity of the second movable slot 3033 between two pairs of second sliders 3025. In this configuration, the installation position and components of the second sliding mechanism are determined.

[0051] like Figures 8 and 9 As shown, further, a movable rod 3035 is movably mounted on one opposite end of each second extrusion rod 3034, and the other end of each movable rod 3035 is movably connected to the movable rod 3031. This arrangement ensures that when the movable rod 3031 moves, it can squeeze the movable rod 3035 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, thereby allowing the second extrusion rod 3034 to 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, a second return spring 3026 is fixedly mounted above the inner cavity of each second slide groove 3024. The other end of each second return spring 3026 is fixedly connected to the second slider 3025. An inclined surface 3038 is formed on the opposing side walls of each first extrusion rod 3027 and second extrusion rod 3034. In this arrangement, the installation position of the second return spring 3026 is determined.

[0053] Example 3:

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

[0055] Step 1: First, the staff places the hydraulic cylinder 104 on the workbench 102. At this time, the staff controls the clamping assembly 103 to move through the controller so that the clamping assembly 103 can clamp and position the 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 connecting head 2021 and the second connecting head 2023 can be replaced so that it 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 slidingly arranged on the second circular moving rod 303 will be able to be inserted into the first insertion groove 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. The movable rod 3035 is pressed into contact with the inner wall of the first plug-in slot 3022, and when the movable rod 3031 contacts the inner wall of the first plug-in slot 3022, the first circular movable rod 302 is in a state of continuing to move, so that the movable rod 3031 can move with the assistance of the third sliding mechanism. When the movable rod 3031 moves, it will be able to 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.

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

[0060] First, the staff places the hydraulic cylinder 104 on the workbench 102. At this time, 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 according to different objects in the process of testing 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 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 it can be suitable for different objects.

[0061] 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;

[0062] 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, so 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, 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 contacting 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. When the moving rod 3031 moves, it will be able to 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 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 bottom and four sides of the mounting base (101), supporting legs (1011) are fixedly mounted on the top and four sides of the mounting base (101), a top plate (1012) is fixedly mounted above the four supporting legs (1011), a clamping assembly (103) is provided at the bottom of the top plate (1012), a workbench (102) is further provided above the mounting base (101), and a hydraulic cylinder (104) is clamped on the clamping assembly (103); The reversing unit (200) comprises a fixed plate (202), a first connector (2021) and a second connector (2023) being respectively mounted at both ends of the fixed 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), the first circular through hole (2022) and the second circular through hole (2024) being symmetrical to each other and of equal size; A fixing member (201) is fixedly installed at the bottom of the hydraulic cylinder (104), a rectangular notch (2011) is provided at the bottom of the fixing member (201), an outer wall of the fixing member (201) is provided with an external 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 internal thread (214), the internal thread (214) and the external thread (212) are meshed with each other, and an inner conical surface (215) is provided on the inner wall of the bottom of the sleeve (2013); bearings (2026) are respectively provided on two opposite side walls of the inner cavity of the rectangular notch (2011), the two bearings (2026) are symmetrical to each other, and a rotating rod (2025) is provided in the inner cavity of the two bearings (2026), and a fixing plate (202) is fixedly installed on the rotating rod (2025); The limiting unit (300) comprises a first circular movable rod (302) and a second circular movable rod (303), wherein the first circular movable rod (302) and the second circular movable rod (303) are provided with a conical surface (3021) on opposite side walls, respectively, and a first plugging slot (3022) and a second plugging slot (3032) are provided on opposite side walls of the first circular movable rod (302) and the second circular movable rod (303), respectively, and the inner cavities of the first plugging slot (3022) and the second plugging slot (3032) are provided with four first movable slots (3023) and four second movable slots (3033) distributed in a circumferential manner, respectively, and the inner cavities of each of the first movable slot (3023) and the second movable slot (3033) are provided with a first extrusion rod (3027) and a second extrusion rod (3034), respectively; 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 sliding grooves (3036), the two third sliding grooves (3036) are respectively opened on the inner wall of the second plug-in slot (3032), the two third sliding grooves (3036) are symmetrical to each other, and the inner cavities of the two third sliding grooves (3036) are both slidably installed with third sliding blocks (3037), the two third sliding blocks (3037) are symmetrical to each other, and a moving rod (3031) is fixedly installed on the side wall opposite to the two third sliding blocks (3037); Each of the first movable slots (3023) and the second movable slots (3033) is provided with a second sliding mechanism, and the second sliding mechanism includes a plurality of second slide slots (3024). A second slider (3025) is slidably installed in the inner cavity of each second slide slot (3024). A first extrusion rod (3027) is fixedly installed between two of the second sliders (3025) in the inner cavity of the first movable slot (3023), and a second extrusion rod (3034) is fixedly installed between two of the second sliders (3025) in the inner cavity of the second movable slot (3033). A movable rod (3035) is movably installed at one end opposite to the other of the second extrusion rods (3034), and the other end of each movable rod (3035) is movably connected to the movable rod (3031).

2. A hydraulic cylinder pressure test device according to claim 1, characterized in that: The two opposite side walls of the inner cavity of the rectangular slot (2011) are further 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 slidingly provided with first sliding rods (3012).

3. A hydraulic cylinder pressure test device according to claim 2, characterized in that: The two first sliding rods (3012) are symmetrical to each other, and the opposite side walls of the two first sliding rods (3012) are respectively fixedly installed with a first circular moving rod (302) and a second circular moving rod (303), and the opposite side walls of the two first sliding rods (3012) are both fixedly installed with a circular mounting plate (3013), and the opposite ends of the two circular mounting plates (3013) are both fixedly installed with a first return spring (3014), and the other ends of the two first return springs (3014) are respectively fixedly connected to the inner wall of the rectangular notch (2011), and the opposite side walls of the two first sliding rods (3012) are also fixedly installed with a push rod (3015), and the two push rods (3015) are symmetrical to each other, and 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).

4. A hydraulic cylinder pressure test device according to claim 1, characterized in that: The moving rod (3031) and the first plug-in slot (3022) fit together.

5. The hydraulic cylinder pressure test device according to claim 1, characterized in that: The second sliding grooves (3024) are respectively opened on the inner walls of the first movable slot (3023) and the second movable slot (3033), and the second sliding grooves (3024) are symmetrical to each other, and the second sliding blocks (3025) are symmetrical to each other.

6. A hydraulic cylinder pressure test device according to claim 5, 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). The first extrusion rod (3027) and the second extrusion rod (3034) are provided with an inclined surface (3038) on the opposite side walls.

7. A hydraulic cylinder pressure test detection method, applied to a hydraulic cylinder pressure test detection device according to any one of claims 1 to 6, 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) by testing different objects during the pressure test 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 (221) and the second connector (223) so that they can be used with 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) slidingly arranged at the second circular moving rod (303) will be inserted into the first insertion slot (3022) opened 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 aligning 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, allowing the second squeezing rod (3034) to squeeze and limit the inner wall of the first circular through hole (2022) or the second circular through hole (2024).

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