Test device for simulating building blasting

Abstract

The utility model discloses a test device for simulating building blasting, which comprises a base, a building model is arranged on one side of the top of the base, a plurality of strain gauges are arranged below one side of the building model, the strain gauges are connected with a strain gauge, notches are symmetrically formed below the other side of the building model, and the notches are connected with the strain gauge. The device further comprises a vertical frame fixedly installed on one side of the top of the base, a plurality of sets of pulleys are arranged on one side of the vertical frame, one end of the connecting line bypasses the pulleys, and a balancing weight is fixedly installed at one end of the connecting line. A fixing assembly is arranged at the top of the base and below the building model; and a user can conveniently fix building models of different sizes, blasting tests can be conveniently conducted on the building models of different sizes, the application range is widened, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building blasting technical field, concretely is a kind of test device for simulating building blasting. BACKGROUND

[0002] Explosive demolition method has become the preferred method for high-rise high-rise structure demolition in complex environment due to its safety, efficiency, economy, environmental protection and other advantages.

[0003] Publication No. CN217605547U discloses a test device for simulating building blasting, which fixes the bottom of the building model, and simulates the weight pressure and gravity moment of the blasting point position area caused by different height buildings by placing at least one counterweight in each cavity.

[0004] The building model is fixed on the base by screws. In order to ensure the accuracy of the test, the building model needs to be fixed. The overall size of the building model of different sizes is not easy to fix, and the position of the screw installation is different. When fixing the building model of different sizes, the position of the screw cannot be changed, and the fixing of the building model has certain limitations.

[0005] A test device for simulating building blasting is proposed to solve the problems mentioned above. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a test device for simulating building blasting to solve the problem that the building model is fixed on the base by screws, and the building model needs to be fixed for the accuracy of the test. The overall size of the building model of different sizes is not easy to fix, and the position of the screw installation is different. When fixing the building model of different sizes, the position of the screw cannot be changed, and the fixing of the building model has certain limitations.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a test device for simulating building blasting, comprising a base;

[0008] The top side of the base is provided with a building model, and the side of the building model is provided with a plurality of strain gauges below, and the plurality of strain gauges are connected with a strain gauge, and the other side of the building model is symmetrically provided with a cutout below, and the inside of the cutout is detachably connected with a plug, and the side of the plug is fixedly connected with a connecting line;

[0009] It also includes:

[0010] The top side of the base is fixedly installed with a stand, one side of the stand is provided with a plurality of groups of pulleys, one end of the connecting line passes around the pulleys and is fixedly installed with a counterweight, and a fixing assembly is arranged below the building model on the top of the base;

[0011] The fixing assembly comprises a fixing seat fixedly installed below the building model on the top of the base, U-shaped rods are symmetrically and slidably connected to the two sides of the fixing seat, movable sleeves are slidably connected to the outer sides of the two U-shaped rods, and positioning racks are fixedly installed on one side of the movable sleeves.

[0012] The outer sides of the two positioning racks are fixedly installed with guide rods, and the other two sides of the fixing seat are symmetrically provided with sliding grooves, and the guide rods are slidably connected with the sliding grooves.

[0013] Preferably, two groups of fixing blocks are fixedly installed on one side of the two groups of U-shaped rods on the two sides of the fixing seat, a positioning rod is slidably connected between each group of two fixing blocks, a plurality of positioning holes are symmetrically and penetratingly arranged on the two sides of the U-shaped rod, and the positioning rod is adaptively connected with the positioning hole.

[0014] Preferably, a telescopic spring is sleeved on the outer side of the positioning rod, one end of the telescopic spring is fixedly connected with one side of the fixing block, the other end of the telescopic spring is fixedly installed with a connecting block, and the connecting block is fixedly connected with the positioning rod.

[0015] Preferably, a fixing rod is fixedly installed on one side of each group of two fixing blocks away from the fixing seat, a push plate is slidably connected to the outer sides of the two fixing rods, a connecting rod is symmetrically and hingedly connected to one side of the push plate, and one end of the connecting rod away from the push plate is hingedly connected with the positioning rod.

[0016] Preferably, a movable groove is arranged in the inner top of the movable sleeve, a rubber sleeve is arranged in the movable groove, a sliding rod is symmetrically installed on the top of the rubber sleeve, the sliding rod is slidably connected with the movable sleeve, and a mounting plate is fixedly installed on the top of the two sliding rods.

[0017] Preferably, two groups of support blocks are symmetrically installed on the two sides of the mounting plate, a support rod is slidably connected in the inner of each group of support blocks, and the two groups of support rods are fixedly connected with the movable sleeve.

[0018] Preferably, a compression spring is sleeved on the outer top of each group of support rods, one end of the compression spring is fixedly connected with the support rod, the other end of the compression spring is fixedly connected with the support block, and a handle is fixedly installed on the top of the mounting plate.

[0019] Compared with the prior art, the test device for simulating building blasting has the following beneficial effects: the fixing assembly is arranged on the top of the base, different size building models can be fixed conveniently, blasting test of different size building models can be conveniently performed, the application range and practicality are improved, and the specific content is as follows.

[0020] 1. The fixing assembly is arranged on the top of the base, and when different size building models are fixed, the building model is placed into the inside of the fixing seat, then the handle is pulled to drive the mounting plate to move according to the width of the building model, the mounting plate moves while driving the supporting block to slide on the supporting rod, and the compression spring can be compressed, so that the rubber sleeve is driven to move by the sliding rod, the rubber sleeve is away from the U-shaped rod, the positioning frame can be moved, the positioning frame moves while driving the guide rod to slide in the sliding groove, so that the left and right sides of the building model can be positioned, then the handle is loosened, the rubber sleeve is tightly attached to the U-shaped rod under the action of the compression spring, and the compression spring is in a compressed state, so that the movable sleeve is not easy to move, then the push plate can be pushed to move, the push plate moves to drive the connecting rod to rotate, the connecting rod rotates to pull the positioning rod to slide on the fixing block, and the extension spring is stretched, so that the positioning rod is separated from the positioning hole on the U-shaped rod, so that the U-shaped rod loses the limit, the U-shaped rod can be moved to make the positioning frame tightly attached to the other two sides of the building model, the front and rear sides of the building model are positioned, then the push plate can be loosened, the extension spring restores the deformation to make the positioning rod inserted into another positioning hole, so that the U-shaped rod is positioned, the fixing assembly is convenient for a user to fix different size building models, is convenient for blasting test of different size building models, and improves the application range and practicality.

[0021] 2. After the building model is fixed, the insert piece can be inserted into the notch, the counterweight is arranged above the building model, then the counterweight block can be loosened, the counterweight block moves by means of gravity to pull the connecting line, so that the insert piece is separated from the notch, so that the building model loses stability and falls, the strain gauge is connected to the strain gauge to record the stress deformation, the height camera can record the building model falling picture, the test data is recorded to be optimized, and subsequent application in actual blasting is facilitated. ACCURACY OF DRAWINGS

[0022] Figure 1 It is a front structure schematic view of the utility model;

[0023] Figure 2 It is a fixed assembly of the utility model and a section structure schematic view;

[0024] Figure 3 It is a fixed assembly of the utility model Figure 2 and an enlarged structure schematic view of area A;

[0025] Figure 4The utility model discloses an active sleeve side sectional structure schematic diagram

[0026] Figure 5 The utility model discloses Figure 2 The middle B area amplification structure schematic diagram.

[0027] In the drawing: 1, base; 101, building model; 102, strain gauge; 103, cutout; 104, insert sheet; 105, stand; 106, connecting wire; 107, counterweight; 2, fixed assembly; 201, fixed seat; 202, U-shaped rod; 203, active sleeve; 204, positioning stand; 205, guide rod; 206, sliding groove; 207, fixed block; 208, positioning rod; 209, positioning hole; 210, telescopic spring; 211, connecting block; 212, fixed rod; 213, push plate; 214, connecting rod; 215, active slot; 216, sliding rod; 217, rubber cover; 218, mounting plate; 219, handle; 220, support block; 221, support rod; 222, compression spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work fall within the protection scope of the utility model.

[0029] Please refer to Figures 1-5The utility model provides technical scheme: a kind of test device for simulating building blasting, including base 1, the top side of base 1 is provided with building model 101, and the side below of building model 101 is provided with several strain gauges 102, and several strain gauges 102 are connected with strain gauge, and the other side below of building model 101 is symmetrically provided with cutout 103, and the inside of cutout 103 is detachably connected with insert piece 104, and the side of insert piece 104 is fixedly connected with connecting line 106, further including: the top side of base 1 is fixedly installed with stand 105, and the side of stand 105 is provided with several groups of pulleys, and the one end of connecting line 106 is passed over several pulleys and fixedly installed with counterweight 107, and the top of base 1 is provided with fixed assembly 2 below building model 101, wherein, fixed assembly 2 includes fixed seat 201 fixedly installed in the top of base 1 below building model 101, and the two sides of fixed seat 201 are symmetrically slidably connected with U-shaped rod 202, and the outside side of two U-shaped rods 202 is slidably connected with movable sleeve 203, and the side of movable sleeve 203 is fixedly installed with positioning frame 204, wherein, the side of two positioning frames 204 is fixedly installed with guide rod 205, and the other two sides of fixed seat 201 are symmetrically provided with sliding slot 206, and guide rod 205 is slidably connected with sliding slot 206, building model 101 of different size is fixed by fixed assembly 2 for user, it is convenient to carry out blasting test to building model 101 of different size, improve the scope of application and practicality.

[0030] Two groups of fixed blocks 207 are fixedly installed on the two sides of the fixed seat 201, one side of each group of two fixed blocks 207 is slidably connected with a positioning rod 208, and a plurality of positioning holes 209 are symmetrically and penetratingly arranged on the two sides of the U-shaped rod 202, the positioning rod 208 is adaptively connected with the positioning hole 209, the U-shaped rod 202 can be positioned, an elastic spring 210 is sleeved on the outer side of the positioning rod 208, one end of the elastic spring 210 is fixedly connected with one side of the fixed block 207, the other end of the elastic spring 210 is fixedly installed with a connecting block 211, the connecting block 211 is fixedly connected with the positioning rod 208, so that the positioning rod 208 can be automatically reset after moving, each group of two fixed blocks 207 far away from the fixed seat 201 are fixedly installed with a fixed rod 212, the outer sides of the two fixed rods 212 are slidably connected with a push plate 213, one side of the push plate 213 is symmetrically hinged with a connecting rod 214, one end of the connecting rod 214 far away from the push plate 213 is hinged with the positioning rod 208, so that the push plate 213 can drive the positioning rod 208 to move, an active slot 215 is arranged on the inner top of the movable sleeve 203, a rubber sleeve 217 is arranged in the active slot 215, the top of the rubber sleeve 217 is symmetrically installed with a sliding rod 216, the sliding rod 216 is slidably connected with the movable sleeve 203, the top of the two sliding rods 216 is fixedly installed with a mounting plate 218, the movable sleeve 203 can be positioned, two groups of support blocks 220 are symmetrically installed on the two sides of the mounting plate 218, the inner sides of the two groups of support blocks 220 are slidably connected with a support rod 221, the two groups of support rods 221 are fixedly connected with the movable sleeve 203, the movement of the mounting plate 218 is supported, the outer sides of the two groups of support rods 221 are sleeved with a compression spring 222, one end of the compression spring 222 is fixedly connected with the support rod 221, the other end of the compression spring 222 is fixedly connected with the support block 220, and the top of the mounting plate 218 is fixedly installed with a handle 219, so that the mounting plate 218 can be automatically reset after moving.

[0031] Working principle: Before using the test device for simulating building blasting, the overall situation of the device needs to be checked to determine whether it can work normally, according to Figure 1 Figure 5 ​As shown, the top of the base 1 is provided with a fixing assembly 2, when fixing the building model 101 of different sizes, the building model 101 is placed into the inside of the fixing seat 201, then the handle 219 is pulled to drive the mounting plate 218 to move, the mounting plate 218 moves to drive the supporting block 220 to slide on the supporting rod 221, and the compression spring 222 can be compressed, so that the rubber sleeve 217 is driven to move through the sliding rod 216, the rubber sleeve 217 is away from the U-shaped rod 202, the positioning frame 204 can be moved, the positioning frame 204 moves to drive the guide rod 205 to slide in the sliding groove 206, so that the left and right sides of the building model 101 can be positioned, then the handle 219 is loosened, the rubber sleeve 217 is tightly attached to the U-shaped rod 202 under the action of the compression spring 222, and the compression spring 222 is in a compressed state, so that the movable sleeve 203 is not easy to move, then the push plate 213 can be pushed to move, the push plate 213 moves to drive the connecting rod 214 to rotate, the connecting rod 214 rotates to pull the positioning rod 208 to slide on the fixing block 207, and the telescopic spring 210 is stretched, so that the positioning rod 208 is separated from the positioning hole 209 on the U-shaped rod 202, so that the U-shaped rod 202 loses the limit, the U-shaped rod 202 can be moved to make the positioning frame 204 adhere to the other two sides of the building model 101, and the front and rear sides of the building model 101 are positioned, then the push plate 213 can be loosened, the telescopic spring 210 restores the deformation to make the positioning rod 208 inserted into another positioning hole 209, so that the U-shaped rod 202 is positioned, through the fixing assembly 2, the user can conveniently fix the building model 101 of different sizes, the building model 101 of different sizes can be conveniently subjected to the blasting test, and the application range and practicality are improved.

[0032] After the building model 101 is fixed, the insert 104 can be inserted into the cutout 103, a counterweight is arranged above the building model 101, then the counterweight block 107 can be loosened, the counterweight block 107 moves by means of gravity to pull the connecting line 106, so that the insert 104 is separated from the cutout 103, so that the building model 101 loses stability and falls, the strain gauge is connected with the strain gauge to record the stress deformation, the height camera can record the falling picture of the building model 101, the test data is recorded for optimization, and the subsequent application in actual blasting is facilitated.

[0033] Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A test device for simulating building blasting, comprising a base (1); The top side of the base (1) is provided with a building model (101), and a plurality of strain gauges (102) are arranged below one side of the building model (101), and the strain gauges (102) are connected with strain gauges, and symmetrically cutouts (103) are arranged below the other side of the building model (101), and the inside of the cutouts (103) is detachably connected with an insert piece (104), and the side of the insert piece (104) is fixedly connected with a connecting line (106); characterized in that Further comprising: The top side of the base (1) is fixedly installed with a stand (105), and the stand (105) is provided with a plurality of pulleys on one side, and one end of the connecting line (106) passes through the pulleys and is fixedly installed with a counterweight (107), and the top of the base (1) below the building model (101) is provided with a fixing assembly (2); The fixing assembly (2) comprises a fixing seat (201) fixedly installed on the top of the base (1) below the building model (101), and the two sides of the fixing seat (201) are symmetrically connected with U-shaped rods (202), and the outer sides of the two U-shaped rods (202) are slidably connected with movable sleeves (203), and the side of the movable sleeve (203) is fixedly installed with a positioning frame (204); The two positioning frames (204) are fixedly installed on one side, and the other two sides of the fixing seat (201) are symmetrically provided with sliding grooves (206), and the guide rods (205) are slidably connected with the sliding grooves (206); The two sides of the fixing seat (201) are fixedly installed with two groups of fixing blocks (207) on one side of the two groups of U-shaped rods (202), and the two fixing blocks (207) in each group are slidably connected with a positioning rod (208), and the two sides of the U-shaped rod (202) are symmetrically provided with a plurality of positioning holes (209), and the positioning rod (208) is connected with the positioning hole (209); The outer side of the positioning rod (208) is sleeved with a telescopic spring (210), one end of the telescopic spring (210) is fixedly connected with one side of the fixing block (207), and the other end of the telescopic spring (210) is fixedly installed with a connecting block (211), and the connecting block (211) is fixedly connected with the positioning rod (208); Each group of two fixing blocks (207) far away from the fixing seat (201) on one side are fixedly installed with a fixing rod (212), and the outer sides of the two fixing rods (212) are slidably connected with a push plate (213), and the side of the push plate (213) is symmetrically hinged with a connecting rod (214), and the end of the connecting rod (214) away from the push plate (213) is hinged with the positioning rod (208). The inside of the movable sleeve (203) is provided with a movable groove (215), the inside of the movable groove (215) is provided with a rubber sleeve (217), the top of the rubber sleeve (217) is symmetrically provided with a sliding rod (216), the sliding rod (216) is slidably connected with the movable sleeve (203), and the top of the two sliding rods (216) is fixedly provided with a mounting plate (218); The two sides of the mounting plate (218) are symmetrically provided with two groups of supporting blocks (220), the inside of the two groups of supporting blocks (220) is slidably connected with a supporting rod (221), and the two groups of supporting rods (221) are fixedly connected with the movable sleeve (203) The outside of the two groups of supporting rods (221) is provided with a compression spring (222), one end of the compression spring (222) is fixedly connected with the supporting rod (221), the other end of the compression spring (222) is fixedly connected with the supporting block (220), and the top of the mounting plate (218) is fixedly provided with a handle (219).

Images