CN215374474U

CN215374474U - Building steel structure fatigue resistance testing arrangement

Info

Publication number: CN215374474U
Application number: CN202121692360.4U
Authority: CN
Inventors: 胡笑波
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2021-12-31
Anticipated expiration: 2031-07-24

Abstract

The utility model discloses a fatigue resistance testing device for a steel structure for a building, and relates to the technical field of building correlation. The conveying mechanism comprises two U-shaped plates, a second screw rod is rotatably connected to the U-shaped plates, strip-shaped plates are arranged above the two U-shaped plates, two ends of each strip-shaped plate are fixedly connected with a second connecting plate, a second sleeve is sleeved on the outer side of each second connecting plate in a sliding mode, and the second sleeve is sleeved on the outer peripheral surface of the second screw rod in a threaded mode. According to the utility model, the second screw rod is rotated, the building steel structure placed on the strip-shaped plate is driven to ascend and descend by matching of all the parts, and the size of the whole device is adjustable by matching of the second sleeve and the second connecting plate.

Description

Building steel structure fatigue resistance testing arrangement

Technical Field

The utility model belongs to the technical field of building correlation, and particularly relates to a fatigue resistance testing device for a steel structure for a building.

Background

Steel structures are structures composed of steel materials and are one of the main building structure types. Fatigue property refers to a property of eventually losing its use value due to fatigue caused by repeated application of various stresses during use, thereby gradually deteriorating the physical and mechanical properties of the product to cause cracking, heat generation, peeling, destruction, and the like. The fatigue resistance refers to the capability of bearing repeated stress, so that the fatigue resistance of the steel structure used for buildings needs to be detected in the production process.

Through retrieval of Chinese patent, application publication number: CN212340605U, application published: 2021.01.12 discloses a fatigue resistance testing device of steel structure for construction, which comprises a base, a fixed rod, a connecting plate and an extrusion plate, wherein the bottom edge of the base is fixed with supporting legs, the two sides of the top of the base are symmetrically fixed with the fixed rod, the top between the fixed rods at the two sides is fixed with the connecting plate, the bottom of the connecting plate is connected with an electric telescopic rod in a sliding way, the bottom of the electric telescopic rod is fixed with the fixed plate, one side of the fixed plate is fixed with a second motor, the output shaft of the second motor is connected with an eccentric wheel, the edge of one side of the eccentric wheel far away from the second motor is connected with the connecting arm, the bottom of the connecting arm is fixed with a connecting rod, the bottom of the connecting rod is fixed with the extrusion plate, the middle part of the top of the connecting rod is provided with an arc groove, a clamping ball matched with the arc groove is connected in the arc groove, and the top of the clamping ball is fixed with the connecting rod through a connecting column, a fixing column is fixed on one side edge of the top end of the base, and a fixing clamp is fixed on the side edge of the fixing column. However, the utility model still has the following disadvantages in actual use:

1. the utility model is used for bearing the weight of the base height of the steel structure for construction can not be adjusted, therefore, before the steel structure for construction is detected, the steel structure for construction needs to be manually carried to the upper part of the base, which causes the labor intensity of workers to be increased;

2. the utility model discloses a size of base is fixed inconvenient, therefore the whole device is only applicable to the building steel structure that the cross section is little than it, and the suitability is relatively poor.

Therefore, the utility model publication No. CN212340605U cannot meet the practical requirements, so that there is a strong need in the market for improved techniques to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a steel structure fatigue resistance testing device for buildings, which drives a second sleeve to move upwards by rotating a second lead screw, wherein the second sleeve is connected with a strip-shaped plate through a second connecting plate, so that the second sleeve moves to drive the strip-shaped plate to move, thereby driving a steel structure to be detected for buildings placed on the strip-shaped plate to move upwards, thereby lifting the steel structure for buildings to a proper height for detection, and the first connecting plate and the second connecting plate are respectively arranged on the outer sides of a rectangular plate and the strip-shaped plate, and the first sleeve and the second sleeve are respectively sleeved on the outer sides of the first connecting plate and the second connecting plate, so that the whole device can be suitable for steel structures for buildings with different sizes, and the problems of large labor intensity and poor applicability of a CN212340605U utility model are solved.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a fatigue resistance testing device for a steel structure for a building, which comprises a supporting mechanism, wherein the supporting mechanism comprises two cross rods, the first supporting rod is convenient to place, two ends of one side wall of each cross rod penetrate through the other side wall and are rotatably connected with a first lead screw, the supporting plate is convenient to drive to move, two ends of one side wall adjacent to the two cross rods are respectively provided with a supporting plate, the steel structure for the building is convenient to support, the supporting plates are in threaded connection with the first lead screws, a conveying mechanism is arranged between the two cross rods, the steel structure for the building is convenient to ascend and descend, the conveying mechanism comprises two U-shaped plates, three second lead screws are rotatably connected to the tops of the U-shaped plates from one end to the other end at equal intervals and are convenient to drive a second sleeve to move, three strip-shaped plates are arranged above the middle part between the two U-shaped plates from one side to the other side at equal intervals and are convenient to place the steel structure for the building, and equal fixedly connected with second connecting plate on the corresponding both sides wall of bar shaped plate, the sheathed tube of second of being convenient for is placed, two the outside of second connecting plate all slides and has cup jointed the second sleeve pipe, be convenient for with the connection of second lead screw, two the one end that the second sleeve pipe deviates from each other is the screw thread respectively cup jointed on the outer peripheral face of the second lead screw that corresponds.

Further, the both ends at horizontal pole bottom and top are the first bracing piece of fixedly connected with and second bracing piece respectively, are convenient for respectively place U template and first sheathed tube, cup joint on the outer peripheral face that first lead screw deviates from layer board one end and is fixed with first worm wheel, are convenient for drive first lead screw and rotate, the universal auto-lock wheel of bottom fixedly connected with of first bracing piece, the removal of the integrated device of being convenient for, the first sleeve pipe of top fixedly connected with of a second bracing piece lateral wall is convenient for be connected with first connecting plate.

Furthermore, the supporting plate is conveniently supported by three connecting rods fixedly connected with the same distance from one end to the other end on the side wall of the supporting plate adjacent to the cross rod, the connecting rods movably penetrate through the cross rod, one end of each connecting rod deviates from the supporting plate is fixedly connected with a separation blade, and the connecting rods are prevented from being separated from the cross rod.

Further, two a lateral wall that the horizontal pole deviates from each other all is provided with first round bar, the placing of the first worm of being convenient for, and the middle part of first round bar outer peripheral face rotates and has cup jointed first connecting seat, the first round bar of being convenient for and the connection of horizontal pole, the lateral wall fixed connection of corresponding position department of first connecting seat and horizontal pole, all cup joint on the outer peripheral face at first round bar both ends and be fixed with first worm, be convenient for drive first worm wheel and rotate, and first worm wheel meshing, the equal first hand wheel of fixedly connected with in both ends of first round bar, the first round bar of being convenient for rotate.

Further, two the top at middle part between the horizontal pole is provided with the rectangular plate, the pneumatic cylinder of being convenient for place, and the equal first connecting plate of fixedly connected with in both ends of the corresponding both sides wall of rectangular plate, be convenient for with being connected of first sleeve, first connecting plate slides and imbeds in the first sleeve of corresponding position department, the central point at rectangular plate top puts the detachable fixedly connected with pneumatic cylinder of department, is convenient for drive the piston rod and removes, the inner chamber embedding sliding connection of pneumatic cylinder has the piston rod, and the piston rod runs through the rectangular plate, the bottom fixedly connected with pick-up plate of piston rod is convenient for detect steel structure fatigue resistance to the building.

Further, cup joint on the outer peripheral face of second lead screw bottom and be fixed with the second worm wheel, be convenient for drive the second lead screw and rotate, two one side that U template top deviates from each other all is provided with the second round bar, the placing of the second worm of being convenient for.

Further, cup joint by one end to the other end equidistance on the outer peripheral face of second round bar and be fixed with three second worm, be convenient for drive the second worm wheel and rotate, and second worm and the meshing of second worm wheel, the second connecting seat has all been cup jointed in the both ends of second round bar rotation, the second round bar of being convenient for and the being connected of U template, and the bottom of second connecting seat and the corresponding position department fixed connection at U template top, the equal fixedly connected with second hand wheel in both ends of second round bar is convenient for rotate the second round bar.

The utility model has the following beneficial effects:

1. according to the utility model, the second sleeve is driven to move upwards by rotating the second lead screw, and the second sleeve is connected with the strip-shaped plate through the second connecting plate, so that the strip-shaped plate is driven to move by the movement of the second sleeve, and the steel structure for the building to be detected placed on the strip-shaped plate is driven to move upwards, so that the steel structure for the building is lifted to a proper height for detection, the steel structure for the building is prevented from being lifted manually, and the working strength is reduced.

2. According to the utility model, the first connecting plate and the second connecting plate are respectively arranged on the outer sides of the rectangular plate and the strip-shaped plate, and the first sleeve and the second sleeve are respectively sleeved on the outer sides of the first connecting plate and the second connecting plate, so that the integral device can be suitable for building steel structures with different sizes, and the applicability of the integral device is improved.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the support mechanism of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2 according to the present invention;

fig. 4 is an exploded view of the transfer mechanism of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a support mechanism; 110. a cross bar; 111. a first lead screw; 1111. a first worm gear; 112. a first support bar; 1121. a universal self-locking wheel; 113. a second support bar; 1131. a first sleeve; 120. a support plate; 121. a connecting rod; 122. a baffle plate; 130. a first round bar; 131. a first connecting seat; 132. a first worm; 133. a first hand wheel; 140. a rectangular plate; 141. a first connecting plate; 150. a hydraulic cylinder; 151. a piston rod; 152. detecting a plate; 200. a conveying mechanism; 210. a U-shaped plate; 211. a second lead screw; 2111. a second worm gear; 220. a second round bar; 221. a second worm; 222. a second connecting seat; 223. a second hand wheel; 230. a strip plate; 231. a second connecting plate; 232. a second sleeve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-3, the utility model is a fatigue resistance testing device for a steel structure for construction, comprising a supporting mechanism 100, wherein the supporting mechanism 100 comprises two cross bars 110, two ends of one side wall of the cross bars 110 are both penetrated to the other side wall and are rotatably connected with a first screw rod 111, two ends of an adjacent side wall of the two cross bars 110 are both provided with a support plate 120, the support plate 120 is in threaded connection with the first screw rod 111, a conveying mechanism 200 is arranged between the two cross bars 110, the conveying mechanism 200 comprises two U-shaped plates 210, the top of the U-shaped plates 210 is rotatably connected with three second screw rods 211 from one end to the other end at equal intervals, three strip-shaped plates 230 are arranged above the middle part between the two U-shaped plates 210 at equal intervals from one side to the other side, two corresponding side walls of the strip-shaped plates 230 are both fixedly connected with second connecting plates 231, the outer sides of the two second connecting plates 231 are both slidably sleeved with second sleeves 232, one end of each of the two second sleeves 232 which deviates from each other is respectively in threaded sleeve connection with the outer peripheral surface of the corresponding second lead screw 211, the distance between the two cross rods 110 is adjusted according to the size of the building steel structure to be detected, so that the whole device is suitable for the building steel structures with different sizes, the building steel structure to be detected is placed above the strip-shaped plate 230, the second worm wheel 2111 is rotated to drive the second lead screw 211 to rotate, the second lead screw 211 is rotated to drive the second sleeve 232 in threaded connection with the second lead screw 211 to vertically move upwards along the outer peripheral surface of the second lead screw 211, because the second sleeve 232 is connected with the strip-shaped plate 230 through the second connecting plate 231, the movement of the second sleeve 232 drives the strip-shaped plate 230 to vertically move upwards, so that the building steel structure to be detected is lifted to a proper position, and then the first lead screw 111 is rotated to drive the supporting plate 120 in threaded connection with the first lead screw to move along the outer peripheral surface of the first lead screw 111, thereby making first layer board 120 hold the steel structure for building to be detected, both ends at the bottom and top of cross bar 110 are fixedly connected with first bracing piece 112 and second bracing piece 113 respectively, and are used for placing U-shaped plate 210 and first sleeve 1131 respectively, first worm wheel 1111 is fixed on the outer peripheral surface of the end of first lead screw 111 departing from layer board 120 in a sleeved manner and is used for driving first lead screw 111 to rotate, universal self-locking wheel 1121 is fixedly connected at the bottom of first bracing piece 112 and is used for moving the whole device, first sleeve 1131 is fixedly connected at the top of the side wall of second bracing piece 113 and is used for being connected with first connecting plate 141, three connecting rods 121 are fixedly connected on the side wall of layer board 120 adjacent to cross bar 110 at equal intervals from one end to the other end, and are used for supporting layer board 120, and connecting rods 121 movably penetrate through cross bar 110, retaining piece 122 is fixedly connected at the detachable end of connecting rod 121 departing from layer board 120, for preventing the connecting rod 121 and the cross rod 110 from separating, a first round rod 130 is disposed on each of the two side walls of the two cross rods 110, a first connecting seat 131 is rotatably sleeved on the middle portion of the outer peripheral surface of the first round rod 130, the first connecting seat 131 is fixedly connected with the side wall of the corresponding position of the cross rod 110, a first worm 132 is fixedly sleeved on the outer peripheral surface of each of the two ends of the first round rod 130, the first worm 132 is meshed with a first worm wheel 1111, the two ends of the first round rod 130 are fixedly connected with a first hand wheel 133, the first hand wheel 133 is rotated to drive the first worm 132 to rotate through the first round rod 130, the first worm 132 rotates to drive the first worm wheel 1111 meshed with the first worm to rotate, a rectangular plate 140 is disposed above the middle portion between the two cross rods 110 for placing the hydraulic cylinder 150, and the two corresponding ends of the rectangular plate 140 are fixedly connected with first connecting plates 141 for connecting with the two side walls of the first sleeve 1131, in the first sleeve 1131 of first connecting plate 141 sliding embedding corresponding position department, the detachable fixedly connected with pneumatic cylinder 150 of central point department at rectangular plate 140 top for drive piston rod 151 and remove, the inner chamber embedding sliding connection of pneumatic cylinder 150 has piston rod 151, and piston rod 151 runs through rectangular plate 140, the bottom fixedly connected with pick-up plate 152 of piston rod 151, be used for detecting building steel structure fatigue resistance.

As shown in fig. 4, a second worm wheel 2111 is fixedly sleeved on the outer peripheral surface of the bottom of the second screw 211, one side of the top of each of the two U-shaped plates 210, which is away from each other, is provided with a second round bar 220, the rotation of the second worm wheel 2111 drives the second screw 211 to rotate, the rotation of the second screw 211 drives a second sleeve 232 in threaded connection with the second screw to vertically move upwards along the outer peripheral surface of the second screw 211, three second worms 221 are fixedly sleeved on the outer peripheral surface of the second round bar 220 from one end to the other end at equal intervals, the second worms 221 are meshed with the second worm wheel 2111, the two ends of the second round bar 220 are rotatably sleeved with second connecting seats 222, the bottom ends of the second connecting seats 222 are fixedly connected with the corresponding positions of the top of the U-shaped plates 210, the two ends of the second round bar 220 are fixedly connected with second hand wheels 223, the second hand wheels 223 are rotated to drive the second worms 221 to rotate through the second round bars 220, the rotation of the second worm 221 rotates the second worm wheel 2111 engaged therewith.

The working principle is as follows: in the using process, the distance between the two cross rods 110 is adjusted according to the size of the steel structure for construction to be detected, so that the whole device is suitable for the steel structures for construction with different sizes, the steel structure for construction to be detected is placed above the strip-shaped plate 230, the second hand wheel 223 is rotated to drive the second worm 221 to rotate through the second round rod 220, the second worm 221 rotates to drive the second worm wheel 2111 meshed with the second worm to rotate, the second worm wheel 2111 rotates to drive the second lead screw 211 to rotate, the second lead screw 211 rotates to drive the second sleeve 232 in threaded connection with the second lead screw to vertically move upwards along the outer peripheral surface of the second lead screw 211, as the second sleeve 232 is connected with the strip-shaped plate 230 through the second connecting plate 231, the movement of the second sleeve 232 drives the strip-shaped plate 230 to move upwards along the vertical direction, so that the steel structure for construction to be detected is lifted to a proper position, rotate first wheel 133 again, make it drive first worm 132 through first round bar 130 and rotate, the rotation of first worm 132 drives the first worm wheel 1111 rotation of meshing with it, the rotation of first worm wheel 1111 drives the first lead screw 111 of fixedly connected with it and rotates, the rotation of first lead screw 111 drives the layer board 120 of threaded connection with it and removes along the outer peripheral face of first lead screw 111, thereby make first layer board 120 hold the steel structure for building that waits to detect, start hydraulic cylinder 150 this moment, make it drive pick-up plate 152 through piston rod 151 and reciprocate, thereby the completion is detected to the fatigue resistance of steel structure for building.

The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.

Claims

1. The utility model provides a steel structure fatigue resistance testing arrangement for building, includes supporting mechanism (100), its characterized in that: the supporting mechanism (100) comprises two cross rods (110), two ends of one side wall of each cross rod (110) penetrate through the other side wall to be connected with a first lead screw (111) in a rotating mode, two ends of the adjacent side wall of each cross rod (110) are provided with supporting plates (120), the supporting plates (120) are in threaded connection with the first lead screws (111), a conveying mechanism (200) is arranged between the two cross rods (110), the conveying mechanism (200) comprises two U-shaped plates (210), the tops of the U-shaped plates (210) are in equidistant rotating connection with three second lead screws (211) from one end to the other end, three strip-shaped plates (230) are arranged above the middle part between the two U-shaped plates (210) in an equidistant mode from one side to the other side, second connecting plates (231) are fixedly connected to two side walls corresponding to the strip-shaped plates (230), and second sleeves (232) are sleeved on the outer sides of the two second connecting plates (231) in a sliding mode, one ends of the two second sleeves (232) which are deviated from each other are respectively sleeved on the peripheral surfaces of the corresponding second screw rods (211) in a threaded manner.

2. The fatigue resistance testing device for the steel structure for buildings as claimed in claim 1, wherein both ends of the bottom and top of the cross bar (110) are fixedly connected with a first support rod (112) and a second support rod (113), respectively, the outer peripheral surface of one end of the first lead screw (111) departing from the support plate (120) is fixedly sleeved with a first worm wheel (1111), the bottom of the first support rod (112) is fixedly connected with a universal self-locking wheel (1121), and the top of one side wall of the second support rod (113) is fixedly connected with a first sleeve (1131).

3. The fatigue resistance testing device for the steel structure for buildings as claimed in claim 1, wherein three connecting rods (121) are fixedly connected to one side wall of the supporting plate (120) adjacent to the cross rod (110) from one end to the other end at equal intervals, the connecting rods (121) movably penetrate through the cross rod (110), and a blocking piece (122) is fixedly connected to one end of the connecting rods (121) which is detachable and away from the supporting plate (120).

4. The fatigue resistance testing device for the steel structure for buildings as claimed in claim 1, wherein a side wall of each of the two cross bars (110) which are away from each other is provided with a first round bar (130), and the middle part of the outer peripheral surface of the first round bar (130) is rotatably sleeved with a first connecting seat (131), the first connecting seat (131) is fixedly connected with the side wall of the cross bar (110) at the corresponding position, the outer peripheral surfaces of both ends of the first round bar (130) are fixedly sleeved with first worms (132), the first worms (132) are engaged with first worm wheels (1111), and both ends of the first round bar (130) are fixedly connected with first hand wheels (133).

5. The structural steel fatigue resistance testing device of claim 1, wherein a rectangular plate (140) is disposed above the middle portion between the two cross bars (110), and first connecting plates (141) are fixedly connected to both ends of two corresponding side walls of the rectangular plate (140), the first connecting plates (141) are slidably inserted into the first sleeves (1131) at corresponding positions, a hydraulic cylinder (150) is detachably and fixedly connected to the center of the top of the rectangular plate (140), a piston rod (151) is slidably connected to the inner cavity of the hydraulic cylinder (150), the piston rod (151) penetrates through the rectangular plate (140), and a detection plate (152) is fixedly connected to the bottom of the piston rod (151).

6. The fatigue resistance testing device for the steel structure for buildings as claimed in claim 1, wherein a second worm wheel (2111) is fixedly sleeved on the outer peripheral surface of the bottom of the second screw rod (211), and a second round bar (220) is arranged on the side of the top of each of the two U-shaped plates (210) which is away from each other.

7. The fatigue resistance testing device for the steel structure for buildings as claimed in claim 6, wherein three second worms (221) are fixed on the outer peripheral surface of the second round bar (220) by means of sleeving from one end to the other end at equal intervals, the second worms (221) are meshed with the second worm wheel (2111), the second connecting seat (222) is rotatably sleeved at both ends of the second round bar (220), the bottom end of the second connecting seat (222) is fixedly connected with the corresponding position of the top of the U-shaped plate (210), and the second handwheel (223) is fixedly connected at both ends of the second round bar (220).