Fabricated concrete structure cloth machine damping device

Abstract

The application relates to the technical field of building construction, and relates to a damping mechanism. The damping mechanism comprises a plurality of supporting rods, the supporting rods are of a symmetrical structure, the supporting rods are rotationally arranged at the bottom of the supporting plates, the supporting rods are provided with movable cavities, the top of each supporting rod is provided with a piston cylinder, the piston cylinder is communicated with the movable cavity, a piston rod is slidably arranged in the piston cylinder, the top of the piston rod is rotationally connected with a push plate, and a driving element is arranged in the movable cavity. The driving element increases the air pressure in the movable cavity during movement, so as to push the piston rod through the air pressure. The push plate is matched with a limiting element during upward movement to clamp the reinforcing steel bars. The reinforcing steel bars are moved up and down during damping. The air pressure is utilized during movement, the piston rod drives the push plate to move up and clamp the reinforcing steel bars, so that the phenomenon that the reinforcing steel bars are crushed is avoided. The problem that the reinforcing steel bars are contacted with the reinforcing steel bars that are bound and are pressed downward during the downward movement of the distributing machine body, and the structure is easily damaged is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to an assembled concrete structure distributing machine damping device. BACKGROUND

[0002] In the construction of a construction project, when the vertical or horizontal distance of concrete pouring exceeds the use range of the truck pump (sky pump), a truck-mounted pump or a trailer pump (ground pump) needs to be used for concrete pouring operation, and a distributing machine is used at the end of the concrete pouring equipment.

[0003] In the prior art, the process of using a distributing machine for concrete pouring on a construction site is as follows: first, the support system and floor formwork of the construction layer are constructed; second, the floor reinforcement is bound; and finally, the distributing machine is placed on the bound reinforcement, and some damping measures are arranged at the position where the distributing machine is placed.

[0004] However, the damping device currently contacts the wood plate after the distributing machine is placed by the crane, and the spring in the damping device deforms, and the distributing machine moves downward to achieve the damping effect. However, the distributing machine contacts the bound reinforcement during the downward movement, and the reinforcement is subjected to a downward pressure, which easily causes structural damage. SUMMARY

[0005] The purpose of the present application is to provide an assembled concrete structure distributing machine damping device to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: an assembled concrete structure distributing machine damping device, which comprises:

[0007] The distributing machine body comprises a support column, the bottom of the support column is provided with a support, the top of the support column is provided with a discharge pipe, and the surface of the distributing machine body is provided with a buffer device. The buffer device comprises a mounting mechanism, the mounting mechanism comprises a support plate, the support plate is arranged at the bottom of the support, the side wall of the support plate is provided with a limiting piece, the bottom of the support plate is provided with a transmission piece, and the transmission piece drives the limiting piece to move away from the two sides of the support plate during the downward movement of the support plate.

[0008] The damping mechanism comprises a plurality of support rods, the plurality of support rods are symmetrical structures, the support rods are rotationally arranged at the bottom of the support plate, the support rods are provided with a movable cavity, the top of the support rod is provided with a piston cylinder, the piston cylinder is in communication with the movable cavity, a piston rod is slidably arranged in the piston cylinder, the top of the piston rod is rotationally connected with a push plate, and a driving piece is arranged in the movable cavity.

[0009] A movable groove is formed on the surface of the support rod, a cover is slidably connected to the surface of the movable groove, and one end of the cover is fixed to the surface of the driven rod, a movable plate is slidably connected to the surface of the cover, and a steel ball is provided on the surface of the movable plate, and the steel ball contacts the protrusion;

[0010] The receiving groove is opened on the surface of the piston block, and the piston block is slidably connected in the active cavity. A damping pad is provided on the surface of the piston block, and the damping pad contacts the active cavity. The surface of the receiving groove is provided with a rubber pad, and the rubber pad contacts the active cavity.

[0011] Preferably, the limiting member includes a slide plate, a piston plate is fixedly provided at one end of the slide plate, a sliding cavity is opened in the support plate, the piston plate is slidably arranged in the sliding cavity, and the slide plate passes through both sides of the support plate.

[0012] Preferably, the driving member includes a baffle, which is fixedly arranged in the active cavity, a plate hole is opened on the side wall of the baffle, and a return spring is arranged on the side wall of the baffle. One end of the return spring is fixedly connected to a piston block, and the piston block is slidably arranged in the active cavity.

[0013] Preferably, the transmission member includes a connecting rod, the top end of the connecting rod is rotatably set on the bottom outer wall of the support plate, the bottom end of the connecting rod is rotatably connected to a driven rod, the driven rod is set through the support plate, one end of the driven rod is located in the active cavity, one end of the driven rod is fixedly connected to the piston block, and the end of the connecting rod close to the driven rod is also rotatably connected to a straight rod, and the other end of the straight rod is rotatably connected to the bottom of the skateboard.

[0014] Preferably, the support rod is bent upward at one end close to the piston cylinder, and a roller is rotatably provided on the outer side wall of the bent end of the support rod, and a scraper ring is slidably provided on the outer wall of the support rod, and a connecting rope is fixedly connected to the side wall of the scraper ring, and the other end of the connecting rope is fixedly connected to the bottom outer wall of the slide plate, and a through hole is provided on the side wall of the support plate, and the through hole is connected to the sliding cavity, and a slide is provided on the side wall of the support plate at the outer periphery of the through hole, and a cover plate is provided for longitudinal sliding in the slide, and a support plate is fixedly provided on the side wall of the support rod, and a transmission column is fixedly provided on the bottom of the cover plate, and an installation groove is provided on the top of the slide, and a limit plate is provided in the installation groove.

[0015] Preferably, the cover is provided with two groups, the surface of the movable plate is provided with convex strips, the convex strips are provided with multiple groups, the multiple groups of convex strips are distributed at equal distances and sizes, and the steel balls are fixed on the surface of the convex strips.

[0016] Preferably, there are two groups of storage grooves, which are symmetrically distributed about the center of the body, and the surfaces of the storage grooves are provided with guide plates. The surface of the rubber pad is integrally formed with a blocking block, and the blocking block is slidably connected to the surface of the guide plate.

[0017] Preferably, the surface of the blocking block is provided with an elastic plate, the elastic plate is an arc-shaped plate structure, the surface of the elastic plate is provided with a connecting plate, and there are two groups of elastic plates, which are symmetrically distributed about the center of the guide plate.

[0018] Preferably, two groups of damping pads are provided, and the two groups of damping pads are respectively located at the two ends of the receiving groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention proposes a shock-absorbing device for an assembled concrete structure concrete placing boom. The driving member increases the air pressure in the movable chamber during movement, so as to push the piston rod through the air pressure. The push plate cooperates with the limit member to clamp the steel bars during the upward movement, and the upward and downward movement occurs during the shock-absorbing process. During the movement, the air pressure is utilized to enable the piston rod to drive the push plate to move up and push the steel bars, thereby avoiding the phenomenon of the steel bars being crushed. This solves the problem that the concrete placing boom body may contact the tied steel bars during the downward movement, and the steel bars are subjected to downward pressure, which may easily cause damage to the structure.

[0021] Place the counterweight on top of the slide plate and use the limit plate to block it. At this time, the slide plate and the support plate together exert downward pressure on the steel bar, which means that the force-bearing area of ​​the steel bar becomes larger, reducing the chance of local damage. At the same time, the weight of the counterweight causes the push plate to rise, clamping the steel bar to achieve rapid fixation of the bracket; the support rod flips to drive the support plate, and the support plate pushes the cover plate through the transmission column. The cover plate moves up to open the through hole, and the shock absorption effect softens. Then install the counterweight. This operation is consistent with the operating steps of the concrete placing boom body during actual use, so as to reduce the labor intensity of manual labor.

[0022] During the movement of the driven rod, the cover moves in the movable groove, effectively preventing concrete from falling into the movable cavity and affecting its use. In addition, during the movement of the driven rod, the steel ball on the surface of the movable plate on the surface of the driven rod is always in contact with the movable cavity under the action of the elastic plate. Therefore, when the steel ball passes through the surface of the protrusion, the rebound force of the elastic plate causes the steel ball to hit the movable cavity, so that the concrete on the outer surface of the support rod will not accumulate too much and affect the use of the scraper ring.

[0023] The damping pad creates greater friction during the movement of the piston block, making the overall shock absorption of the device better. The rubber pad is in contact with the movable cavity. Even after the damping pad is worn out after long-term use, it can still create greater friction during the movement of the piston block. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2This is a schematic diagram of the main structure of the material placing machine of the present invention;

[0026] Figure 3 It is a schematic structural diagram of the buffer device of the present invention;

[0027] Figure 4 It is a schematic diagram of the installation mechanism structure of the present invention;

[0028] Figure 5 It is a schematic cross-sectional view of the support rod cross-sectional structure of the present invention;

[0029] Figure 6 Schematic diagram of the baffle structure of the present invention;

[0030] Figure 7 Schematic diagram of the connecting rod structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the cover structure of the present invention;

[0032] Figure 9 It is a schematic diagram of the structure of the skateboard of the present invention;

[0033] Figure 10 This is a schematic structural diagram of the scraper ring of the present invention;

[0034] Figure 11 It is a partial cross-sectional schematic diagram of the support rod structure of the present invention;

[0035] Figure 12 A schematic half-section view of the support rod structure of the present invention;

[0036] Figure 13 This is a schematic diagram of the structure of the blocking block of the present invention;

[0037] Figure 14 This is a schematic diagram of the piston block structure of the present invention.

[0038] In the figure: 100, feeder body; 110, support; 120, bracket; 130, discharge pipe; 200, buffer device; 210, mounting mechanism; 211, support plate; 212, sliding chamber; 213, slide plate; 214, piston plate; 220, shock absorbing mechanism; 221, support rod; 222, movable chamber; 223, baffle; 224, plate hole; 225. Return spring; 226. Piston block; 227. Piston cylinder; 228. Piston rod; 229. Push plate; 230. Round rod; 240. Connecting rod; 241. Follower rod; 242. Straight rod; 250. Through hole; 251. Slideway; 252. Cover plate; 253. Transmission column; 254. Support plate; 260. Limit plate; 270. Scraper ring; 271. Connecting rope; 280. Protrusion; 281. Fixed groove; 282. Movable groove; 283. Cover; 284. Movable plate; 285. Raised strip; 286. Steel ball; 287. Damping pad; 288. Storage groove; 289. Rubber pad; 290. Stop block; 291. Guide plate; 292. Elastic plate; 293. Connecting plate. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figures 1-14The present invention provides a technical solution: a material distributing machine body 100, the material distributing machine body 100 includes a support 110, a bracket 120 is provided at the bottom of the support 110, a discharge pipe 130 is provided at the top of the support 110, a buffer device 200 is provided on the surface of the material distributing machine body 100, and the buffer device 200 includes a mounting mechanism 210, the mounting mechanism 210 includes a support plate 211, the support plate 211 is provided at the bottom of the bracket 120, a limit member is provided on the side wall of the support plate 211, and a transmission member is provided at the bottom of the support plate 211; a shock absorbing mechanism 220, the shock absorbing mechanism 220 includes a support rod 221, a plurality of support rods 221 are provided, and the plurality of support plates 211 are symmetrical structures. The support rods 221 are rotatably provided at the bottom of the support plate 211, and an active cavity 222 is opened in the support rod 221. The top of the piston cylinder 227 is provided with a piston cylinder 227, which is connected to the active chamber 222. A piston rod 228 is slidably provided in the piston cylinder 227. The top of the piston rod 228 is rotatably connected to the push plate 229. A driving member is provided in the active chamber 222; a movable groove 282 is provided on the surface of the support rod 221, and a cover 283 is slidably connected to the surface of the movable groove 282, and one end of the cover 283 is fixed to the surface of the driven rod 241, and a movable plate 284 is slidably connected to the surface of the cover 283. A steel ball 286 is provided on the surface of the movable plate 284, and the steel ball 286 is in contact with the protrusion 280; a receiving groove 288 is provided on the surface of the piston block 226, and the piston block 226 is slidably connected to the active chamber 222. A damping pad 287 is provided on the surface of the piston block 226, and the damping pad 287 is in contact with the active chamber 222 The surface of the receiving groove 288 is provided with a rubber pad 289, and the rubber pad 289 is in contact with the active cavity 222;

[0042] The driving member increases the air pressure in the movable cavity 222 during movement to push the piston rod 228 by air pressure, and the push plate 229 is matched with the limiting member during upward movement to clamp the reinforcing bar. The push plate 229 is driven upward by the piston rod 228 during movement to avoid the phenomenon that the reinforcing bar is crushed, and solves the problem that the reinforcing bar is contacted with the reinforcing bar that is bound during the downward movement of the distributing machine body 100, and the reinforcing bar is easily damaged by the downward pressure. The counterweight is placed on the top of the sliding plate 213, and the limiting plate 260 blocks it. At this time, the sliding plates 213 and 221 support the reinforcing bar together, that is, the stress area of the reinforcing bar is increased, and the probability of local damage is reduced. At the same time, the weight of the counterweight makes the push plate 229 rise to clamp the reinforcing bar, and realizes the rapid fixing of the 120 support. The 221 support rod is turned to drive the 254 support plate, the 254 support plate drives the 252 cover plate through the 253 transmission column, the 252 cover plate moves upward to open the 250 through hole, and the damping effect becomes soft at this time. Then, the counterweight is installed, and the operation steps are consistent with the operation steps of the distributing machine body 100 in actual use, so as to reduce the labor intensity of workers. During the movement of the driven rod 241, the cover 283 moves in the movable groove 282, effectively preventing the concrete from falling into the movable cavity 222 and affecting use. During the movement of the driven rod 241, the steel ball 286 on the surface of the moving plate 284 on the surface of the driven rod 241 is always in contact with the movable cavity 222 under the action of the elastic plate 292. Therefore, when the steel ball 286 passes through the surface of the protrusion 280, the rebounding force of the elastic plate 292 makes the steel ball 286 knock the movable cavity 222, so that the concrete on the surface of the support rod 221 does not accumulate too much to affect the use of the scraping ring 270. The damping pad 287 has greater friction during the movement of the piston block 226, so that the damping property of the whole device is better. The rubber pad 289 is in contact with the movable cavity 222, and after the damping pad 287 is worn after long-term use, the piston block 226 still has greater friction during movement;

[0043] Example two

[0044] On the basis of embodiment 1, the limiting member includes a slide plate 213, one end of which is fixedly provided with a piston plate 214, a sliding cavity 212 is provided in the support plate 211, the piston plate 214 is slidably provided in the sliding cavity 212, and the slide plate 213 passes through both sides of the support plate 211, and the driving member includes a baffle 223, which is fixedly provided in the active cavity 222, and a plate hole 224 is provided on the side wall of the baffle 223, and a return spring 225 is provided on the side wall of the baffle 223, and one end of the return spring 225 is fixedly connected to a piston block 226, and the piston block 226 is slidably provided in the active cavity 222, and the transmission member includes a connecting rod 240, the top end of the connecting rod 240 is rotatably provided on the bottom outer wall of the support plate 211, and the bottom end of the connecting rod 240 is rotatably connected to a driven rod 241, which passes through the support plate 211, and one end of the driven rod 241 is located at In the movable chamber 222, one end of the driven rod 241 is fixedly connected to the piston block 226, and the end of the connecting rod 240 close to the driven rod 241 is also rotatably connected to the straight rod 242, and the other end of the straight rod 242 is rotatably connected to the bottom of the slide 213. The end of the support rod 221 close to the piston cylinder 227 is bent upward, and the outer wall of the bent end of the support rod 221 is rotatably provided with a roller, and the outer wall of the support rod 221 is slidably provided with a scraper ring 270, and the side wall of the scraper ring 270 is fixedly connected to the connecting rope 271, and the other end of the connecting rope 271 is fixedly connected to the outer wall of the bottom of the slide 213. The side wall of the support plate 211 is provided with a through hole 250, and the through hole 250 is provided. 50 is communicated with the sliding cavity 212, the side wall of the support plate 211 is located on the outer periphery of the through hole 250 and is provided with a slide 251, a cover plate 252 is longitudinally slidably provided in the slide 251, the side wall of the support rod 221 is fixedly provided with a support plate 254, the bottom of the cover plate 252 is fixedly provided with a transmission column 253, the top of the slide plate 213 is provided with a mounting groove, a limit plate 260 is provided in the mounting groove, two groups of covers 283 are provided, and the surface of the movable plate 284 is provided with ridges 285, and the ridges 285 are provided with multiple groups, and the multiple groups of ridges 285 are distributed at equal distances and sizes, and the steel balls 286 are fixed on the surface of the ridges 285, and the storage groove 288 is opened. There are two groups, and the two groups of storage grooves 288 are symmetrically distributed about the center of 226. The surface of the storage groove 288 is provided with a guide plate 291. The surface of the rubber pad 289 is integrally formed with a blocking block 290, and the blocking block 290 is slidably connected to the surface of the guide plate 291. The surface of the blocking block 290 is provided with an elastic plate 292. The elastic plate 292 has an arc-shaped plate structure. The surface of the elastic plate 292 is provided with a connecting plate 293. There are two groups of elastic plates 292, and the two groups of elastic plates 292 are symmetrically distributed about the center of the guide plate 291. There are two groups of damping pads 287, and the two groups of damping pads 287 are respectively located at both ends of the storage groove 288;

[0045] Example 3

[0046] On the basis of the second embodiment, considering that the material distribution boom body 100 needs to be placed with a counterweight after installation, and the counterweight is placed on the material distribution boom body 100, the buffer device 200 will be subjected to a large force. Due to the relative movement of the two piston plates 214 in the sliding cavity 212, the gas between the two piston plates 214 is stretched, generating negative pressure, providing damping force for the movement of the slide plate 213, making the shock absorption of the buffer device 200 relatively hard, causing the buffer device 200 to easily crush the template. For this reason, please refer to Figure 8 As shown, a through hole 250 is provided on the side wall of the support plate 211, and the through hole 250 is communicated with the sliding cavity 212. A slide 251 is provided on the side wall of the support plate 211 at the periphery of the through hole 250. A cover plate 252 is provided in the longitudinal sliding of the slide 251. When the counterweight needs to be installed, the cover plate 252 is moved upward. At this time, the air pressure in the sliding cavity 212 is kept balanced with the external air pressure through the through hole 250. At this time, when the two piston plates 214 in the sliding cavity 212 move relative to each other, the sliding cavity 212 is moved through the through hole 250. The hole 250 sucks in the outside air, avoiding the continuous generation of negative pressure in the sliding chamber 212, so that the damping of the sliding of the piston plate 214 disappears. At this time, the compression force of the return spring 225 can be increased, and the force exerted by the counterweight block on the support plate 211 is prolonged, thereby reducing the stress strength of the template. Furthermore, in order to realize the automatic adjustment of the softness and hardness of the shock absorption, the side wall of the support rod 221 is fixedly provided with a support plate 254, and the bottom of the cover plate 252 is fixedly provided with a transmission column 253. The support plate 254 Under the action of the rotation of the support rod 221, the transmission column 253 is pushed. When the support rod 221 flips, that is, the first time, it means that the material distribution boom body 100 is in the installation state. At this time, the support rod 221 flips and drives the support plate 254. The support plate 254 pushes the cover plate 252 through the transmission column 253. The cover plate 252 moves up to open the through hole 250. At this time, the shock absorption effect is softened. Then, the counterweight block is installed. This operation is consistent with the operating steps when the material distribution boom body 100 is actually used, so as to reduce the labor intensity.

[0047] Example 4

[0048] Based on Example 3, please refer to Figure 9 As shown, in order to achieve the adjustment of the counterweight, an installation groove is opened on the top of the slide 213, and a limit plate 260 is set in the installation groove. When there is a problem with the installation of the counterweight block, the bracket 120 needs to be fixed at this time. Therefore, the counterweight block is placed on the top of the slide 213 according to the width of the slide 213 when it moves, and the limit plate 260 blocks it. At this time, the slide 213 and the support plate 211 jointly exert downward pressure on the steel bar, that is, the force-bearing area of ​​the steel bar becomes larger, reducing the chance of local damage. At the same time, the weight of the counterweight block causes the push plate 229 to rise, clamping the steel bar to achieve rapid fixation of the bracket 120.

[0049] In actual use, the driving member increases the air pressure in the active chamber 222 during the movement, so as to push the piston rod 228 through the air pressure. The push plate 229 cooperates with the limiter to clamp the steel bar during the upward movement, and the upward and downward movement occurs during the shock absorption process. The air pressure is utilized during the movement to make the piston rod 228 The push plate 229 is driven to move up and push the steel bar, thereby avoiding the phenomenon that the steel bar is crushed; when the fabric machine body 100 falls, the bottom end of the support rod 221 contacts the template, and the support rod 221 is flipped to the sides of the support plate 211. During the flipping process, the distance between the support rod 221 and the support plate 211 changes, causing the fabric machine body 100 and the support plate 211 to move down. The support plate 211 moves down and exerts a force on the driving member and the limit member through the transmission member. The movement of the driving member increases the air pressure in the active chamber 222, so that the piston rod 228 is pushed by the air pressure, causing the push plate 229 to move up and push the steel bar, and the limit member moves to both sides and is located on the top of the steel bar to prevent the steel bar from being deformed after being pushed; the straight rod 242 is forced to push the slide plate 213, causing the slide plate 213 to move away from the sides of the support plate 211, and the slide plate 213 is The pushed steel bar is limited to prevent it from being damaged. The slide plate 213 drives the piston plate 214, and the two piston plates 214 in the sliding chamber 212 move relative to each other, causing the gas between the two piston plates 214 to be stretched, generating negative pressure, and providing damping force for the movement of the slide plate 213; the driven rod 241 pushes the piston block 226, and the movement of the piston block 226 causes the return spring 225 to be compressed. At the same time, the gas between the piston block 226 and the support rod 221 near the end of the piston cylinder 227 is compressed, generating high pressure, which enters the piston cylinder 227 to push the piston rod 228, and the piston rod 228 drives the push plate 229 to move upward to push the steel bar. It is worth noting that the friction between the piston block 226 and the side wall of the active chamber 222 is strong, which can provide damping force for the return spring 225 to prevent the return spring 225 from After resetting, rebound occurs; when the support plate 211 moves downward, the angle between the support rod 221 and the support plate 211 changes, and the connecting rod 240 rotates to drive the driven rod 241. The driven rod 241 is restricted by the piston block 226 and cannot rotate. At this time, the driven rod 241 pushes the piston block 226, and the rotation of the connecting rod 240 also drives the straight rod 242. The straight rod 242 is forced to push the slide plate 213, causing the slide plate 213 to move away from the sides of the support plate 211;

[0050] One end of the support rod 221 near the piston cylinder 227 is bent upward, and a roller is rotatably provided on the outer wall of the bent end of the support rod 221. Considering that it is cumbersome for people to flip the support rod 221, the end of the support rod 221 is bent so that it does not contact the template vertically, but contacts it at an angle. Therefore, when the support rod 221 is subjected to downward pressure, it can automatically flip outward when it contacts the template.

[0051] The outer wall of the supporting rod 221 is slidably provided with a material scraping ring 270, the side wall of the material scraping ring 270 is fixedly connected with a connecting rope 271, the other end of the connecting rope 271 is fixedly connected with the bottom outer wall of the sliding plate 213, and the supporting rod 221 will also have concrete near it after the concrete distribution is completed, but the concrete adhered to the outer wall of the supporting rod 221 is easy to solidify after the supporting rod 221 is picked up, therefore, the force borne by the supporting plate 211 disappears after the distribution machine body 100 is disassembled, the supporting rod 221 and the sliding plate 213 both start to reset, at this time, the sliding plate 213 pulls the material scraping ring 270 through the connecting rope 271, and the material scraping ring 270 moves to scrape off the concrete on the outer wall of the supporting rod 221;

[0052] During the movement of the driven rod 241, the cover 283 moves in the movable groove 282, effectively preventing the concrete from falling into the movable cavity 222 and affecting use; and during the movement of the driven rod 241, the steel ball 286 on the surface of the moving plate 284 on the surface of the driven rod 241 is always in contact with the movable cavity 222 under the action of the elastic plate 292, therefore, when the steel ball 286 passes through the surface of the protruding block 280, the rebounding force of the elastic plate 292 makes the steel ball 286 knock the movable cavity 222, so that the concrete on the outer surface of the supporting rod 221 does not accumulate too much to affect the use of the material scraping ring 270;

[0053] The damping pad 287 has greater friction during the movement of the piston block 226, so that the shock absorption of the whole device is better, and the rubber pad 289 is in contact with the movable cavity 222, so that after the damping pad 287 is worn after long-term use, the piston block 226 still has greater friction during movement.

[0054] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A shock absorbing device for a concrete structure placing boom, characterized by: The shock absorbing device of the assembled concrete structure placing boom comprises: A material distributing machine body (100) includes a support (110), a bracket (120) is provided at the bottom of the support (110), a discharge pipe (130) is provided at the top of the support (110), a buffer device (200) is provided on the surface of the material distributing machine body (100), the buffer device (200) includes a mounting mechanism (210), the mounting mechanism (210) includes a support plate (211), the support plate (211) is provided at the bottom of the bracket (120), a limiting member is provided on the side wall of the support plate (211), and a transmission member is provided at the bottom of the support plate (211), and the transmission member drives the limiting member during the downward movement of the support plate (211) to move the limiting member to both sides away from the support plate (211); A shock absorbing mechanism (220) includes a support rod (221), a plurality of support rods (221) are provided, and the plurality of support rods (221) are symmetrically structured. The support rod (221) is rotatably provided at the bottom of the support plate (211), an active cavity (222) is provided in the support rod (221), a piston cylinder (227) is provided at the top of the support rod (221), the piston cylinder (227) is communicated with the active cavity (222), a piston rod (228) is slidably provided in the piston cylinder (227), the top of the piston rod (228) is rotatably connected to a push plate (229), and a driving member is provided in the active cavity (222); The limiting member includes a slide plate (213), a piston plate (214) is fixedly provided at one end of the slide plate (213), a sliding cavity (212) is provided in the support plate (211), the piston plate (214) is slidably provided in the sliding cavity (212), and the slide plate (213) passes through both sides of the support plate (211); The transmission member includes a connecting rod (240), the top end of the connecting rod (240) is rotatably arranged on the bottom outer wall of the support plate (211), the bottom end of the connecting rod (240) is rotatably connected to a driven rod (241), the driven rod (241) is arranged to pass through the support rod (221), one end of the driven rod (241) is located in the active cavity (222), one end of the driven rod (241) is fixedly connected to the piston block (226), and one end of the connecting rod (240) close to the driven rod (241) is also rotatably connected to a straight rod (242), and the other end of the straight rod (242) is rotatably connected to the bottom of the slide plate (213); A movable groove (282) is provided on the surface of the support rod (221), the surface of the movable groove (282) is slidably connected to a cover (283), one end of the cover (283) is fixed to the surface of the driven rod (241), the surface of the cover (283) is slidably connected to a movable plate (284), the surface of the movable plate (284) is provided with a steel ball (286), and the steel ball (286) contacts the protrusion (280); The receiving groove (288) is provided on the surface of the piston block (226). The piston block (226) is slidably connected in the movable chamber (222). A damping pad (287) is provided on the surface of the piston block (226). The damping pad (287) contacts the movable chamber (222). The receiving groove (288) is provided on the surface of the rubber pad (289). The rubber pad (289) contacts the movable chamber (222).

2. The shock absorbing device for a concrete structure placing boom according to claim 1, characterized in that: The driving member includes a baffle (223), the baffle (223) is fixedly arranged in the active cavity (222), a plate hole (224) is opened on the side wall of the baffle (223), a return spring (225) is arranged on the side wall of the baffle (223), one end of the return spring (225) is fixedly connected to a piston block (226), and the piston block (226) is slidably arranged in the active cavity (222).

3. The shock absorbing device for a concrete structure placing boom according to claim 2, characterized in that: One end of the support rod (221) close to the piston cylinder (227) is bent upward, and a roller is rotatably provided on the outer wall of the bent end of the support rod (221). A scraper ring (270) is slidably provided on the outer wall of the support rod (221). The side wall of the scraper ring (270) is fixedly connected to a connecting rope (271), and the other end of the connecting rope (271) is fixedly connected to the bottom outer wall of the slide plate (213). A through hole (250) is opened on the side wall of the support plate (211). The through hole ( 250) is communicated with the sliding cavity (212), a side wall of the support plate (211) is provided with a slideway (251) on the periphery of the through hole (250), a cover plate (252) is provided longitudinally slidingly in the slideway (251), a support plate (254) is fixedly provided on the side wall of the support rod (221), a transmission column (253) is fixedly provided on the bottom of the cover plate (252), a mounting groove is provided on the top of the slide plate (213), and a limit plate (260) is provided in the mounting groove.

4. The shock absorbing device for a concrete structure placing boom according to claim 3, characterized in that: The cover (283) is provided with two groups, and the surface of the movable plate (284) is provided with convex strips (285). The convex strips (285) are provided with multiple groups, and the multiple groups of convex strips (285) are distributed at equal distances and sizes, and steel balls (286) are fixed on the surface of the convex strips (285).

5. The shock absorbing device for a concrete structure placing boom according to claim 4, characterized in that: The receiving grooves (288) are provided with two groups, and the two groups of receiving grooves (288) are symmetrically distributed about the center of the piston block (226). A guide plate (291) is provided on the surface of the receiving grooves (288). A blocking block (290) is integrally formed on the surface of the rubber pad (289), and the blocking block (290) is slidably connected to the surface of the guide plate (291).

6. The shock absorbing device for a concrete structure placing boom according to claim 5, characterized in that: The surface of the blocking block (290) is provided with an elastic plate (292), the elastic plate (292) being an arc-shaped plate structure, the surface of the elastic plate (292) being provided with a connecting plate (293), and two groups of elastic plates (292) are provided, and the two groups of elastic plates (292) are symmetrically distributed about the center of the guide plate (291).

7. The shock absorbing device for a concrete structure placing boom according to claim 6, characterized in that: The damping pads (287) are provided in two groups, and the two groups of damping pads (287) are respectively located at two ends of the receiving groove (288).

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