A pipe gallery support load test device

Abstract

The present invention discloses a pipe gallery support load test device, which relates to the technical field of support load test, and comprises: a support ring, wherein a plurality of connecting assemblies are fixed on the inner wall of the support ring; a cylinder, wherein the cylinder and the plurality of connecting assemblies are fixed, and the cylinder passes through the support ring; a first piston, wherein the first piston is slidably arranged in the cylinder, and a rod is fixed on the top of the first piston; a first support assembly, wherein the first support assembly is arranged on the top of the rod; and a load applying assembly, wherein the load applying assembly is slidably sleeved on the cylinder. The present invention can adjust the position of the load applying assembly through the adjustment assembly after the first support assembly contacts the top of the pipe gallery, and fix the cylinder and the load applying assembly, and continue to inject hydraulic oil into the cylinder. At this time, the cylinder can be lowered, and then the load applying assembly can be lowered to apply a load to the pipe gallery support. Therefore, during the load test process, the device does not require complicated assembly and preparation work.

Description

Technical Field

[0001] The present invention relates to the technical field of support load testing, and in particular to a pipe gallery support load testing device. Background Art

[0002] As a comprehensive underground facility, the pipe gallery is used for the centralized laying and maintenance of various municipal pipelines, such as electricity, communications, water supply, drainage, gas, heat, etc. The pipe gallery centrally arranges various pipelines to facilitate unified management and maintenance and reduce repeated excavation. Through centralized underground laying, the occupation of ground facilities is reduced and the use of urban space is optimized. In engineering applications, a large number of cantilever brackets are arranged on both sides of the underground pipe gallery for the installation of different pipelines.

[0003] The pipe gallery support itself needs to have a certain load capacity to ensure the stability of the pipeline. After the support is installed, it is generally necessary to conduct a load test on the pipe gallery support.

[0004] In the existing technology, most pipe gallery support load tests require cement bags and other materials as loading weights. During the construction phase, the narrow pipe gallery contains a large number of construction materials and equipment. It is inconvenient to transport cement bags and configuration blocks over long distances. In addition, it is difficult to achieve the required load value, especially the requirement for uniform loading and unloading required by the technical standards for support load tests.

[0005] Some load test devices use hydraulic systems. The hydraulic system does not need to be loaded with heavy objects. However, when the load is applied to the pipe gallery support, its reaction force will also act on the hydraulic system. Therefore, in order to ensure that the load is continuously and stably applied to the pipe gallery support during the test, it is necessary to ensure the stability of the hydraulic system. To this end, a large number of supports need to be spliced ​​and fixed to ensure that the hydraulic system is stably fixed. This type of solution will make it inconvenient to move within the pipe gallery due to the large number of supports. At the same time, complicated assembly work is required before the test. Summary of the Invention

[0006] The purpose of the present invention is to provide a pipe gallery support load test device to solve the technical problems in the prior art.

[0007] The present invention provides a pipe gallery support load test device, comprising:

[0008] A support ring, wherein a plurality of connecting components are fixed to the inner wall of the support ring;

[0009] A cylinder, wherein the cylinder and the plurality of connecting components are fixed, and the cylinder passes through the support ring;

[0010] a first piston, the first piston being slidably disposed in the cylinder, and a rod being fixed to the top of the first piston;

[0011] a first supporting assembly, the first supporting assembly being arranged at the top end of the rod body;

[0012] A load applying assembly, wherein the load applying assembly is slidably sleeved on the cylinder;

[0013] A plurality of adjustment assemblies, each of which is fixed on the side wall of the cylinder and connected to the load applying assembly, and each of which is used to adjust the position of the load applying assembly;

[0014] A plurality of second support assemblies, wherein the plurality of second support assemblies are all fixed to the bottom of the support ring;

[0015] A hydraulic assembly is connected to the bottom end of the cylinder.

[0016] Preferably, the connection assembly includes:

[0017] A U-shaped seat, the U-shaped seat being fixed to the inner wall of the support ring;

[0018] A connecting ring, the connecting ring and the U-shaped seat are rotatably connected;

[0019] A limiting rod, the limiting rod is rotatably connected to the connecting ring, and a connecting groove is formed at the bottom end of the limiting rod;

[0020] A mounting seat, the mounting seat being fixed to the bottom of the side wall of the cylinder;

[0021] A connecting rod is rotatably connected to the mounting seat and is slidably disposed in the connecting groove;

[0022] The third spring is fixed to the connecting rod, and the third spring is fixed to the inner wall of the connecting groove.

[0023] Preferably, it also includes:

[0024] A plurality of circular holes are provided on the side wall of the limiting rod, and a first latch is inserted into one of the circular holes.

[0025] Preferably, the first supporting assembly comprises:

[0026] A hollow seat, the hollow seat being fixed to the top end of the rod body and filled with hydraulic oil;

[0027] Multiple sleeves, multiple sleeves are arranged in the hollow seat, and each sleeve passes through the top of the hollow seat, the top and bottom ends of each sleeve are both necked structures, a second piston is slidably arranged in each sleeve, a sleeve rod is fixed on the top of each second piston, a rubber block is fixed on the top of each sleeve rod, a second spring is fixed on the inner wall of each sleeve, and multiple second springs and multiple second pistons are fixed one to one.

[0028] Preferably, the adjustment component includes:

[0029] Two fixing plates, both of which are fixed on the cylinder;

[0030] A screw rod, wherein the screw rod is fixed between two fixing plates;

[0031] A connecting plate, the connecting plate being fixed to the inner wall of the support ring, the top of the connecting plate being provided with a through hole, and the screw rod passing through the through hole;

[0032] A nut is connected to a lead screw via a thread.

[0033] Preferably, the load applying assembly comprises:

[0034] An annular seat, the annular seat being slidably sleeved on the cylinder;

[0035] A plurality of connecting blocks, each of which is fixed to the annular seat, each of which is located below a nut, and each of which has a connecting hole on its top, wherein the connecting holes correspond to the screw rods one by one, and the screw rods pass through the connecting holes;

[0036] A connecting frame, wherein two mounting assemblies are provided at the bottom end of the connecting frame, and both mounting assemblies are fixed to the annular seat;

[0037] A sliding rod, wherein the sliding rod is slidably connected to the connecting frame;

[0038] A force sensor, wherein the force sensor is fixed to a connecting frame;

[0039] An extrusion block, wherein the extrusion block is fixed to the sliding rod;

[0040] A fourth spring, one end of the fourth spring is fixed to the force sensor, and the other end of the fourth spring is fixed to the extrusion block.

[0041] Preferably, the installation assembly includes:

[0042] A fixed block, the fixed block and the annular seat are fixed;

[0043] A connecting seat, wherein the connecting seat and the fixing block are rotatably connected, the connecting frame and the connecting seat are fixed, and the side walls of the fixing block and the connecting seat are both provided with square holes;

[0044] A second latch is inserted into the square hole.

[0045] Preferably, the second supporting assembly comprises:

[0046] Support legs, the support legs are fixed to the bottom of the support ring;

[0047] Two chutes, the two chutes being provided on two side walls of the supporting leg;

[0048] Two sliders, the two sliders are slidably disposed in the slide grooves respectively, a first spring is fixed to the top of each slider, and the two first springs are respectively fixed to the two slide grooves;

[0049] A sliding seat, wherein the sliding seat and the two sliding blocks are fixed;

[0050] A universal wheel, wherein the universal wheel is fixed to the sliding seat;

[0051] The seat body is fixed at the bottom end of the supporting leg.

[0052] Preferably, the hydraulic assembly includes:

[0053] A mounting plate, wherein the mounting plate is fixed to two adjacent base bodies;

[0054] A storage tank is fixed on the top of the mounting plate and is filled with hydraulic oil;

[0055] A hand-operated hydraulic pump, wherein the hand-operated hydraulic pump is fixed on the top of the mounting plate;

[0056] A connecting pipe, the connecting pipe is connected to the input port of the hand hydraulic pump and is connected to the storage tank;

[0057] An oil supply pipe, the oil supply pipe is connected to the output port of the hand hydraulic pump, and the oil supply pipe passes through the bottom end of the cylinder;

[0058] A valve, the valve being disposed on the storage tank;

[0059] A reflux pipe is connected to the valve and passes through the bottom end of the cylinder.

[0060] Preferably, a first handle is fixed to the side wall of the support ring, and a second handle is fixed to the bottom of the side wall of the cylinder.

[0061] Compared with the prior art, the present invention has the following beneficial effects:

[0062] (1) The present invention can achieve, during the load test, the cylinder body rising by the action of the adjusting assembly, so that the cylinder body rises relative to the support tube, thereby achieving a preliminary increase in the height of the device, and the upward movement of the first piston in the cylinder body by the action of the hydraulic assembly, so that the rod body extends, thereby achieving a further increase in the height of the device, thereby ensuring that the top of the device can contact the top of the pipe gallery, so as to achieve the fixation of the device. Conversely, during the movement of the device, the cylinder body descends relative to the support ring and the rod body contracts into the cylinder body, so as to reduce the overall volume of the device, thereby facilitating movement in narrow pipe galleries.

[0063] (2) The present invention can achieve that during the load test, after the rod extends out of the cylinder, the first support assembly contacts the top of the pipe gallery and the second support assembly contacts the bottom of the pipe gallery, thereby ensuring the stability of the device. Furthermore, during the load test, it can ensure that the load is continuously and stably applied to the pipe gallery support, thereby ensuring the accuracy of the test results.

[0064] (3) The present invention can achieve that after the first support assembly contacts the top of the pipe gallery, the position of the load applying assembly can be adjusted by the adjustment assembly through the arrangement of the adjustment assembly, and the cylinder and the load applying assembly can be fixed, and hydraulic oil can be continuously injected into the cylinder. At this time, the cylinder can be lowered, and the load applying assembly can be lowered to apply a load to the pipe gallery support. Therefore, during the load test of the device, there is no need for complicated assembly and preparation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0066] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0067] Figure 2 The present invention Figure 1 A in the middle is an enlarged structural diagram;

[0068] Figure 3 It is a schematic diagram of the storage tank, valve, return pipe and cylinder structure of the present invention;

[0069] Figure 4 This is a schematic diagram of the exploded structure of the support legs and slider of the present invention;

[0070] Figure 5 This is a schematic diagram of the support ring, U-shaped seat and connecting ring structure of the present invention;

[0071] Figure 6 is a schematic cross-sectional view of the limiting rod of the present invention;

[0072] Figure 7 This is a schematic diagram of the structure of the fixing block, the connecting seat and the second latch of the present invention;

[0073] Figure 8 It is a schematic cross-sectional view of the hollow shaft and sleeve of the present invention;

[0074] Figure 9 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention.

[0075] Reference numerals:

[0076] 101. Support ring; 102. First handle; 103. Support leg; 104. Sliding seat; 105. Slide groove; 106. Slider; 107. First spring; 108. Universal wheel; 109. Seat; 201. Cylinder; 202. Rod; 203. Second handle; 204. First piston; 301. Hollow seat; 302. Sleeve; 303. Sleeve rod; 304. Second spring; 305. Second piston; 306. Rubber block; 401. U-shaped seat; 402. Limiting rod; 403. Connecting ring; 404. Round hole; 405. First latch; 406. 6. Mounting seat; 407. Connecting rod; 408. Third spring; 501. Connecting plate; 502. Screw rod; 503. Fixing plate; 504. Nut; 601. Mounting plate; 602. Storage tank; 603. Hand hydraulic pump; 604. Return pipe; 605. Valve; 606. Oil supply pipe; 607. Connecting pipe; 701. Annular seat; 702. Connecting frame; 703. Connecting block; 704. Fixing block; 705. Connecting seat; 706. Second latch; 707. Fourth spring; 708. Force sensor; 709. Sliding rod; 710. Extrusion block. DETAILED DESCRIPTION

[0077] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0078] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0079] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0080] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0081] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0082] The following combination Figures 1 to 9 As shown, an embodiment of the present invention provides a pipe gallery support load test device, comprising:

[0083] Support ring 101, with multiple connection components fixed to the inner wall of support ring 101;

[0084] The cylinder 201 is fixed to a plurality of connecting components, and the cylinder 201 passes through the support ring 101;

[0085] A first piston 204 is slidably disposed in the cylinder 201 , and a rod 202 is fixed to the top of the first piston 204 ;

[0086] A first support assembly, the first support assembly is arranged at the top end of the rod body 202;

[0087] A load applying assembly is slidably sleeved on the cylinder 201;

[0088] Multiple adjustment components, each of which is fixed to the side wall of the cylinder 201 and connected to the load applying component, and is used to adjust the position of the load applying component;

[0089] A plurality of second support assemblies, wherein the plurality of second support assemblies are all fixed to the bottom of the support ring 101;

[0090] The hydraulic assembly is connected to the bottom end of the cylinder 201.

[0091] Furthermore, the connection component includes:

[0092] U-shaped seat 401, the U-shaped seat 401 is fixed to the inner wall of the support ring 101;

[0093] A connecting ring 403 is rotatably connected to the U-shaped seat 401;

[0094] The limiting rod 402 is rotatably connected to the connecting ring 403, and a connecting groove is formed at the bottom end of the limiting rod 402;

[0095] Mounting seat 406, the mounting seat 406 is fixed to the bottom of the side wall of the cylinder 201;

[0096] A connecting rod 407 is rotatably connected to the mounting base 406, and the connecting rod 407 is slidably disposed in the connecting groove;

[0097] The third spring 408 is fixed to the connecting rod 407 and the third spring 408 is fixed to the inner wall of the connecting groove.

[0098] By limiting the sliding of the rod 402 and the connecting ring 403, the cylinder 201 can rise and fall relative to the support ring 101, thereby achieving a preliminary increase in the overall height of the device. By sliding the first piston 204 along the cylinder 201, the overall height of the device can be further increased. Therefore, when the device is in a mobile state, it can ensure a smaller height and a smaller footprint to facilitate the movement of the device in the pipeline corridor. At the same time, since the device can be lifted multiple times, the load test of the pipeline corridor support can also be carried out when the height of the device in the pipeline corridor is relatively high.

[0099] Furthermore, it also includes:

[0100] A plurality of circular holes 404 are provided on the side wall of the limiting rod 402 , wherein a first latch 405 is inserted into one of the circular holes 404 .

[0101] Furthermore, the first support assembly includes:

[0102] Hollow seat 301, the hollow seat 301 is fixed to the top of the rod body 202, and the hollow seat 301 is filled with hydraulic oil;

[0103] Multiple sleeves 302 are arranged in the hollow seat 301, and each sleeve 302 passes through the top of the hollow seat 301. The top and bottom ends of each sleeve 302 are both necked structures. A second piston 305 is slidably arranged in each sleeve 302, a sleeve rod 303 is fixed on the top of each second piston 305, a rubber block 306 is fixed on the top of each sleeve rod 303, a second spring 304 is fixed on the inner wall of each sleeve 302, and the multiple second springs 304 and the multiple second pistons 305 are fixed one to one.

[0104] If the top of the pipe gallery is flat, all rubber blocks 306 will contact the top of the pipe gallery at the same time. If the top of the pipe gallery is curved, some of the rubber blocks 306 will contact the pipe gallery, and as the hollow seat 301 rises, the rubber blocks 306 that first contact the top of the pipe gallery will descend. The descending rubber blocks 306 push the second piston 305 down through the sleeve rod 303, so that the hydraulic oil in the sleeve 302 enters the hollow seat 301 and other sleeves 302 to push other second pistons 305 up until all the rubber blocks 306 contact the top of the pipe gallery.

[0105] Therefore, no matter what shape the top of the tunnel is, the stability of the device can be guaranteed, thereby enabling the device to adapt to different test environments.

[0106] Furthermore, the adjustment component includes:

[0107] Two fixing plates 503, both fixing plates 503 are fixed on the cylinder 201;

[0108] Screw rod 502, screw rod 502 is fixed between two fixing plates 503;

[0109] The connecting plate 501 is fixed to the inner wall of the support ring 101. A through hole is formed on the top of the connecting plate 501, and the screw rod 502 passes through the through hole;

[0110] The nut 504 is connected to the screw rod 502 via threads.

[0111] When the cylinder 201 descends, the two fixing plates 503 can drive the screw rod 502 to descend, and then drive the nut 504 to descend. When the load applying assembly and the pipe gallery support come into conflict, the nut 504 can be rotated to move the nut 504 along the screw rod 502, and the nut 504 can be adjusted to come into conflict with the load applying assembly, thereby achieving the goal that when the cylinder 201 descends, the load applying assembly can be driven to descend, so as to apply a load to the pipe gallery support.

[0112] Furthermore, the load applying component includes:

[0113] An annular seat 701 is slidably sleeved on the cylinder 201;

[0114] Multiple connecting blocks 703, each of which is fixed to the annular seat 701, each of which is located below the nut 504, and each of which has a connecting hole at the top. The multiple connecting holes correspond to the multiple screw rods 502, and the screw rods 502 pass through the connecting holes.

[0115] Connecting frame 702, two mounting assemblies are provided at the bottom end of connecting frame 702, and both mounting assemblies are fixed to annular seat 701;

[0116] Sliding rod 709, sliding rod 709 and connecting frame 702 are slidably connected;

[0117] The force sensor 708 is fixed to the connecting frame 702;

[0118] Extrusion block 710, the extrusion block 710 and the sliding rod 709 are fixed;

[0119] The fourth spring 707 has one end fixed to the force sensor 708 and the other end fixed to the extrusion block 710 .

[0120] Furthermore, the installation components include:

[0121] The fixing block 704 is fixed to the annular seat 701;

[0122] The connecting base 705 is rotatably connected to the fixing block 704, the connecting frame 702 is fixed to the connecting base 705, and the side walls of the fixing block 704 and the connecting base 705 are both provided with square holes;

[0123] The second latch 706 is inserted into the square hole.

[0124] When performing a load test, the second latch 706 is pulled out. At this time, the connecting frame 702 is rotated from a vertical state to a horizontal state through the rotation of the connecting seat 705 and the fixing block 704. The second latch 706 is then inserted back to fix the annular seat 701 and the connecting frame 702. At this time, the extrusion block 710 is above the load point of the pipe gallery support.

[0125] After the load test is completed, the second pin 706 is pulled out, and the connecting frame 702 is turned from a horizontal state to a vertical state, and then the second pin 706 is used to fix the vertical state of the connecting frame 702 to reduce the footprint of the device, thereby facilitating the movement of the device in a narrow pipe corridor.

[0126] Furthermore, the second support assembly includes:

[0127] Support legs 103, which are fixed to the bottom of the support ring 101;

[0128] Two chutes 105 , the two chutes 105 are provided on two side walls of the support leg 103 ;

[0129] Two sliders 106, the two sliders 106 are slidably disposed in the slide grooves 105, each slider 106 has a first spring 107 fixed on the top, and the two first springs 107 are fixed to the two slide grooves 105 respectively;

[0130] The sliding seat 104 is fixed to the two sliding blocks 106;

[0131] Universal wheel 108, the universal wheel 108 is fixed to the sliding seat 104;

[0132] The base body 109 is fixed to the bottom end of the supporting leg 103 .

[0133] When deploying the device, after the first support assembly contacts the top of the pipe gallery, as the cylinder 201 descends, the slider 106 can rise along the slide 105. During this process, the first spring 107 is compressed, so that the universal wheel 108 can rise relative to the base 109, while the base 109 descends and contacts the ground, which can ensure the stability of the device during the test.

[0134] When the device is moved, the universal wheel 108 is used to reduce the complexity of moving the device.

[0135] Furthermore, the hydraulic assembly includes:

[0136] A mounting plate 601 is fixed to two adjacent base bodies 109;

[0137] Storage tank 602, which is fixed on the top of mounting plate 601 and filled with hydraulic oil;

[0138] A hand-operated hydraulic pump 603 is fixed on the top of the mounting plate 601;

[0139] Connecting pipe 607, connecting pipe 607 is connected to the input port of the hand hydraulic pump 603, and connecting pipe 607 is connected to the storage tank 602;

[0140] The oil supply pipe 606 is connected to the output port of the hand-operated hydraulic pump 603 and passes through the bottom end of the cylinder 201;

[0141] Valve 605, valve 605 is disposed on the storage tank 602;

[0142] The return pipe 604 is connected to the valve 605 and passes through the bottom end of the cylinder 201.

[0143] The hand-operated hydraulic pump 603, in conjunction with the connecting pipe 607 and the oil supply pipe 606, can inject the hydraulic oil in the storage tank 602 into the cylinder 201, thereby pushing the first piston 204 in the cylinder 201 upward;

[0144] After the test, the valve 605 is turned on so that the hydraulic oil in the cylinder 201 can flow back to the storage tank 602 through the valve 605 and the return pipe 604, thereby reducing the overall height of the device and making it easier to move the device in a narrow pipe corridor.

[0145] Furthermore, a first handle 102 is fixed to the side wall of the support ring 101 , and a second handle 203 is fixed to the bottom of the side wall of the cylinder 201 .

[0146] The device can be easily moved by pushing the device with the first handle 102 and cooperating with the universal wheels 108;

[0147] The second handle 203 can facilitate the staff to exert force to facilitate the initial lifting of the cylinder 201.

[0148] The specific working method is: when moving in the pipe gallery, the first handle 102 can be used in conjunction with the universal wheel 108 to facilitate the quick and convenient movement of the device in the pipe gallery;

[0149] Before the load test, use a laser rangefinder to measure the distance between the outermost end of the pipe gallery support and the ground, and record the data;

[0150] According to the load point of the pipe gallery support, the device is moved to a suitable position, and then each first latch 405 is pulled out of the circular hole 404, and the cylinder 201 is lifted upward by the second handle 203. At this time, the cylinder 201 is vertically raised by the sliding of the limiting rod 402 and the connecting ring 403 and the restriction of the cylinder 201. When the cylinder 201 rises to a suitable position, the first latch 405 is inserted back into the circular hole 404 above the connecting ring 403 and closest to the connecting ring 403. The limiting rod 402 is fixed by the first latch 405 and the connecting ring 403, and then the support ring 101 and the cylinder 201 are initially fixed by the connecting rod 407 and the mounting seat 406. At this point, the rubber block 306 is close to the top of the pipe gallery.

[0151] Subsequently, the hydraulic oil in the storage tank 602 is injected into the cylinder 201 through the operation of the hand-operated hydraulic pump 603, the connecting pipe 607, and the oil supply pipe 606. The hydraulic oil in the cylinder 201 pushes the first piston 204 upward, thereby causing the rod 202 to extend out of the cylinder 201, so that the rubber block 306 is close to the top of the pipe gallery again.

[0152] If the top of the pipe gallery is flat, each rubber block 306 will contact the top of the pipe gallery at the same time. If the top of the pipe gallery is an arc surface, some of the rubber blocks 306 will contact the pipe gallery, and as the hollow seat 301 rises, the rubber block 306 that first contacts the top of the pipe gallery will descend, and the descending rubber block 306 will push the second piston 305 down through the sleeve rod 303, so that the hydraulic oil in the sleeve 302 enters the hollow seat 301 and enters other sleeves 302 to push other second pistons 305 to rise until all the rubber blocks 306 contact the top of the pipe gallery. The vertical state of the hollow seat 301, the cylinder 201 and the rod body 202 can be ensured by multiple rubber blocks 306. In addition, multiple rubber blocks 306 contact the top of the pipe gallery at the same time, which can ensure the stability of the device during the test, so that the device can be used to perform load tests on pipe gallery supports under different environments.

[0153] When all the rubber blocks 306 are in contact with the top of the pipe gallery, hydraulic oil is continuously injected into the cylinder 201. Thereafter, the cylinder 201 descends. During the descent of the cylinder 201, the support ring 101 is driven down by the action of the limiting rod 402, the first latch 405, the connecting ring 403 and the U-shaped seat 401, thereby causing the slider 106 to slide upward along the slide groove 105 so that the seat 109 is in contact with the ground. At this point, the top of the device is in contact with the top of the pipe gallery through the rubber blocks 306, and the bottom of the device is in contact with the bottom of the pipe gallery through the seat 109, thereby ensuring the stability of the device.

[0154] Next, the second latch 706 is pulled out. At this time, the connecting frame 702 is rotated from a vertical state to a horizontal state through the rotation of the connecting seat 705 and the fixing block 704. The second latch 706 is then inserted back to fix the annular seat 701 and the connecting frame 702. At this time, the extrusion block 710 is above the load point of the pipe gallery support.

[0155] The annular seat 701 slides on the surface of the cylinder 201, so that the extrusion block 710 contacts the load point of the pipe gallery support. Then, the nut 504 is rotated. During the rotation, the nut 504 moves along the surface of the screw rod 502 until the nut 504 contacts the connection block 703.

[0156] Hydraulic oil is injected into the cylinder 201 again. At this time, the sliding between the connecting rod 407 and the limiting rod 402 compresses the third spring 408, allowing the cylinder 201 to drop a certain distance again. At this time, when the cylinder 201 drops, the two fixing plates 503 drive the screw rod 502 to drop, and then the nut 504 and the connecting block 703 drive the annular seat 701 to drop. The annular seat 701 drives the extrusion block 710 to squeeze the pipe gallery bracket through the fixing block 704, the connecting seat 705, and the connecting frame 702. At this time, the extrusion block 710 pushes the sliding rod 709 to slide along the connecting frame 702, and the reaction force is applied to the force sensor 708 through the fourth spring 707. The load value is recorded using the signal strength of the force sensor 708.

[0157] When the load of the pipe gallery support reaches an appropriate value, stop injecting hydraulic oil into the cylinder 201. After maintaining the load for a certain period of time, measure the distance between the outermost end of the pipe gallery support and the ground again with a laser rangefinder to record the deformation of the pipe gallery support. The load data and deformation data are used to test the load capacity of the pipe gallery support.

[0158] After the test, the valve 605 is turned on, so that the hydraulic oil in the cylinder 201 can flow back to the storage tank 602 through the return pipe 604 and the valve 605. At this time, the connecting rod 407 is reset by the action of the third spring 408, and then the first latch 405 is pulled out, so that the limiting rod 402 can slide along the connecting ring 403 again to realize the lowering of the cylinder 201. When the rubber block 306 is separated from the top of the pipe gallery, the rubber block 306 is reset under the action of each second spring 304 and remains flush. At the same time, under the action of the first spring 107, the slider 106 is pushed down along the slide groove 105 to move the sliding seat 104 and the universal wheel 108 downward. At this time, the universal wheel 108 contacts the ground and the seat body 109 is away from the ground, so that the device can be easily moved again. Finally, the second pin 706 is pulled out, and the connecting frame 702 is turned from a horizontal state to a vertical state, and then the second pin 706 is used to fix the vertical state of the connecting frame 702 to reduce the footprint of the device, thereby facilitating the movement of the device in a narrow pipe corridor.

[0159] It is worth noting that: as recorded in this application, when the load value is displayed by the force sensor 708, it must be used in conjunction with a single-chip microcomputer. Since the use of a single-chip microcomputer and a sensor system to display and record load values ​​belongs to the existing technology and is not the main innovation of this application, it will not be elaborated on.

[0160] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe gallery support load test device, characterized in that: include: A support ring (101), wherein a plurality of connection components are fixed to the inner wall of the support ring (101); A cylinder (201), wherein the cylinder (201) and the plurality of connection components are fixed, and the cylinder (201) passes through the support ring (101); A first piston (204), the first piston (204) is slidably disposed in the cylinder (201), and a rod (202) is fixed to the top of the first piston (204); a first supporting assembly, the first supporting assembly being arranged at the top end of the rod body (202); A load applying assembly, wherein the load applying assembly is slidably sleeved on the cylinder (201); A plurality of adjustment components, each of which is fixed on the side wall of the cylinder (201), and each of which is connected to the load applying component, and each of which is used to adjust the position of the load applying component; A plurality of second support assemblies, wherein the plurality of second support assemblies are all fixed to the bottom of the support ring (101); A hydraulic assembly, the hydraulic assembly being in communication with the bottom end of the cylinder (201); The adjustment component includes: Two fixing plates (503), both of the fixing plates (503) are fixed on the cylinder (201); A screw rod (502), wherein the screw rod (502) is fixed between two fixing plates (503); A connecting plate (501), the connecting plate (501) is fixed on the inner wall of the support ring (101), a through hole is opened on the top of the connecting plate (501), and the screw rod (502) passes through the through hole; A nut (504) is connected to the screw rod (502) via a thread.

2. A pipe gallery support load test device according to claim 1, characterized in that: The connection component includes: A U-shaped seat (401), the U-shaped seat (401) being fixed to the inner wall of the support ring (101); A connecting ring (403), wherein the connecting ring (403) and the U-shaped seat (401) are rotatably connected; A limiting rod (402), wherein the limiting rod (402) and the connecting ring (403) are rotatably connected, and a connecting groove is provided at the bottom end of the limiting rod (402); A mounting seat (406), the mounting seat (406) being fixed to the bottom of the side wall of the cylinder (201); A connecting rod (407), wherein the connecting rod (407) and the mounting seat (406) are rotatably connected, and the connecting rod (407) is slidably disposed in the connecting groove; The third spring (408) is fixed to the connecting rod (407), and the third spring (408) is fixed to the inner wall of the connecting groove.

3. A pipe gallery support load test device according to claim 2, characterized in that: Also includes: A plurality of circular holes (404) are provided on the side wall of the limiting rod (402), and a first latch (405) is inserted into one of the circular holes (404).

4. A pipe gallery support load test device according to claim 1, characterized in that: The first support assembly comprises: A hollow seat (301), wherein the hollow seat (301) is fixed to the top end of the rod body (202), and the hollow seat (301) is filled with hydraulic oil; A plurality of sleeves (302) are provided in a hollow seat (301), and each sleeve (302) passes through the top of the hollow seat (301), the top and bottom of each sleeve (302) are both of a constricted structure, a second piston (305) is slidably provided in each sleeve (302), a sleeve rod (303) is fixed to the top of each second piston (305), a rubber block (306) is fixed to the top of each sleeve rod (303), a second spring (304) is fixed to the inner wall of each sleeve (302), and the plurality of second springs (304) and the plurality of second pistons (305) are fixed one to one.

5. A pipe gallery support load test device according to claim 4, characterized in that: The load applying assembly comprises: An annular seat (701), the annular seat (701) is slidably sleeved on the cylinder (201); A plurality of connecting blocks (703), wherein the plurality of connecting blocks (703) are fixed to the annular seat (701), each of the connecting blocks (703) is located below the nut (504), and a connecting hole is provided on the top of each connecting block (703), wherein the plurality of connecting holes correspond to the plurality of screw rods (502) one by one, and the screw rods (502) pass through the connecting holes; A connecting frame (702), wherein two mounting assemblies are provided at the bottom end of the connecting frame (702), and both mounting assemblies are fixed to the annular seat (701); A sliding rod (709), wherein the sliding rod (709) is slidably connected to the connecting frame (702); A force sensor (708), wherein the force sensor (708) is fixed to the connecting frame (702); An extrusion block (710), wherein the extrusion block (710) and the sliding rod (709) are fixed; A fourth spring (707), one end of the fourth spring (707) is fixed to the force sensor (708), and the other end of the fourth spring (707) is fixed to the extrusion block (710).

6. A pipe gallery support load test device according to claim 5, characterized in that: The installation components include: A fixed block (704), wherein the fixed block (704) and the annular seat (701) are fixed; A connecting seat (705), wherein the connecting seat (705) and the fixing block (704) are rotatably connected, the connecting frame (702) and the connecting seat (705) are fixed, and the side walls of the fixing block (704) and the connecting seat (705) are both provided with square holes; A second latch (706) is inserted into the square hole.

7. A pipe gallery support load test device according to claim 1, characterized in that: The second support assembly comprises: Support legs (103), the support legs (103) being fixed to the bottom of the support ring (101); Two chutes (105), the two chutes (105) being provided on two side walls of the support leg (103); Two sliders (106), the two sliders (106) are respectively slidably arranged in the slide groove (105), a first spring (107) is fixed on the top of each slider (106), and the two first springs (107) are respectively fixed to the two slide grooves (105); A sliding seat (104), wherein the sliding seat (104) and the two sliding blocks (106) are fixed; A universal wheel (108), wherein the universal wheel (108) and the sliding seat (104) are fixed; A seat body (109) is fixed to the bottom end of the supporting leg (103).

8. A pipe gallery support load test device according to claim 7, characterized in that: The hydraulic assembly comprises: A mounting plate (601), wherein the mounting plate (601) is fixed to two adjacent base bodies (109); A storage tank (602), the storage tank (602) being fixed on the top of the mounting plate (601), the storage tank (602) being filled with hydraulic oil; A hand-operated hydraulic pump (603), wherein the hand-operated hydraulic pump (603) is fixed on the top of the mounting plate (601); A connecting pipe (607), wherein the connecting pipe (607) is connected to the input port of the hand-operated hydraulic pump (603), and the connecting pipe (607) is connected to the storage tank (602); An oil supply pipe (606), the oil supply pipe (606) is connected to the output port of the hand-operated hydraulic pump (603), and the oil supply pipe (606) passes through the bottom end of the cylinder (201); A valve (605), the valve (605) being disposed through the storage tank (602); A return pipe (604) is connected to the valve (605), and the return pipe (604) passes through the bottom end of the cylinder (201).

9. A pipe gallery support load test device according to claim 1, characterized in that: A first handle (102) is fixed to the side wall of the support ring (101), and a second handle (203) is fixed to the bottom of the side wall of the cylinder (201).

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