A boom and deconstruction machine

Abstract

This utility model discloses a boom and a building demolition machine in the field of demolition equipment technology. The demolition machine has a boom mounted on its body, and the end of the boom is connected to a second boom via a connecting shaft. The boom includes a boom body, a drive component, a connecting rod assembly, and a reinforcing component. The drive component controls the connecting pins on both sides of the boom body to enter or exit the pin holes via the connecting rod assembly, thereby adjusting the connection or separation state of the boom body from other booms. This improves the automation level of installation or disassembly between different booms and increases the work efficiency of assembling or disassembling booms from other booms. The reinforcing component on the connecting seat further fixes the connecting pins axially and circumferentially, ensuring the stability of the assembled connecting pins.

Description

Technical Field

[0001] This utility model relates to the field of demolition equipment technology, specifically to a boom and demolition machine. Background Technology

[0002] Demolition machines are typical pieces of equipment in the field of heavy machinery, specifically used for demolishing structures such as buildings and bridges. When carrying out demolition work on high-rise buildings or large-scale structures, there are generally high requirements for the length of the demolition machine's extension arm. To improve the working efficiency of the demolition machine, the extension arm is designed to be as long as possible.

[0003] When moving a demolition machine, the extension boom needs to be disassembled into multiple booms for easy transport. Upon arrival at the construction site, these booms are then reassembled into the extension boom. Currently, booms are typically assembled manually by inserting pins, which is time-consuming and labor-intensive. Furthermore, manual pin insertion results in low installation precision, and the connecting pins lack proper securing components. Over time, these connecting pins can loosen, accelerating component wear or causing uneven stress and deformation, thus reducing the component's lifespan. Utility Model Content

[0004] The purpose of this utility model is to disclose a boom and a building demolition machine with a high level of automation, precise connection of different booms, and the ability to keep the connecting pin position stable and not easily loosened.

[0005] In a first aspect, this application discloses a boom, including a boom body, with connecting seats on both sides of the end of the boom body, and coaxially arranged pin holes on the connecting seats, into which a connecting pin is inserted; the boom further includes:

[0006] A drive component is provided between the connecting seats on both sides of the boom body, and the drive component is fixedly connected to the boom body;

[0007] A linkage assembly, wherein the drive component and the connecting pin are connected via the linkage assembly;

[0008] A reinforcement component is provided on the connector corresponding to the position of the connecting pin for fixing the connecting pin.

[0009] As an optional implementation, the linkage assembly includes two push rods and two rocker arms; one end of each of the two push rods is hinged to the drive component, and the other end is respectively hinged to one end of a different rocker arm; the ends of the different rocker arms away from the push rods are respectively connected to the inner side of different connecting pins through cylindrical joints.

[0010] As an optional implementation, all the different rocker arms are V-shaped hockey sticks, with the V-shaped openings arranged opposite each other; the middle part of the rocker arm is rotatably connected to the fixed frame on the boom body; the cylindrical pair includes a first sliding post and an oblong hole; the oblong hole is located at one end of the rocker arm near the connecting pin, and the connecting pin is provided with the first sliding post that mates with the oblong hole.

[0011] As an optional implementation, all of the different rocker arms are straight rods and arranged in an X-shaped cross configuration, with the different rocker arms rotatably connected at the intersection; the cylindrical pair includes a second sliding post and a circular hole; the circular hole is located at one end of the rocker arm near the connecting pin, and the connecting pin is provided with the second sliding post that mates with the circular hole; or the second sliding post is located at one end of the rocker arm near the connecting pin, and the connecting pin is provided with the circular hole that mates with the second sliding post.

[0012] As an optional implementation, the cylindrical pair includes a third sliding post and a sliding groove; the third sliding post is provided at one end of the rocker arm near the connecting pin, and the sliding groove is provided on the connecting pin to cooperate with the third sliding post; the length direction of the sliding groove is perpendicular to the length direction of the connecting pin.

[0013] As an optional implementation, the connecting seat is composed of an inner support plate and an outer support plate arranged parallel to each other and spaced apart, the pin hole passes through the inner support plate and the outer support plate, and the connecting pin passes through the pin hole.

[0014] As an optional implementation, the reinforcement assembly includes a pressure plate disposed on the outer side of the outer support plate. The planar dimension of the pressure plate is larger than the diameter of the pin hole. The pressure plate is provided with a plurality of evenly distributed bolts, which pass through the pressure plate and are screwed into the outer end of the connecting pin.

[0015] As an optional implementation, the reinforcement assembly further includes an anti-rotation protrusion disposed on the inner side of the inner support plate, the anti-rotation protrusion having a groove, and the inner side of the connecting pin having an anti-rotation protrusion that matches the groove.

[0016] As an optional implementation, an elastic washer is provided on the inner side of the inner support plate corresponding to the position of the pin hole. The connecting pin passes through the elastic washer, and the end face of the elastic washer away from the inner side of the inner support plate is in contact with the side of the connecting pin close to the inner support plate.

[0017] Secondly, this application also discloses a demolition machine, which includes a body, a second boom, and the boom, one end of which is connected to the body and the other end of which is connected to the second boom via a connecting pin.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] (1) The drive component drives the linkage assembly to move. The linkage assembly connects or disconnects the boom from other booms by controlling the connecting pin to pass through or out of the pin hole. This reduces manual intervention and improves the efficiency of installing or disassembling different booms.

[0020] (2) The stability of the connecting pin in the pin hole can be improved by reinforcing the components, and the connecting pin can be prevented from loosening. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view of the boom disclosed in the first embodiment of this utility model;

[0023] Figure 2 This is a front view of the boom disclosed in the second embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly of the rocker arm and connecting pin disclosed in the third embodiment of this utility model;

[0025] Figure 4 This is a partial cross-sectional view of the assembly schematic diagram of the boom and the second boom disclosed in this embodiment of the utility model;

[0026] Figure 5 This is a side view of the boom disclosed in an embodiment of the present utility model;

[0027] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0028] Explanation of key figure labels:

[0029] 1. Boom body; 11. Fixing frame; 12. Anti-rotation protrusion; 121. Groove; 13. Pin hole; 14. First thickened boss; 15. Connecting seat; 151. Inner support plate; 152. Outer support plate;

[0030] 16. Pressure plate; 161. Screw;

[0031] 2. Drive components;

[0032] 3. Linkage assembly; 31. Push rod; 32. Tilt arm; 33. Cylindrical pair; 331. First sliding post; 332. Waist-shaped hole; 333. Second sliding post; 334. Round hole; 335. Third sliding post; 336. Slide groove;

[0033] 4. Second boom; 41. Second thickened boss;

[0034] 5. Connecting pin; 51. Anti-rotation protrusion; 52. Chamfer; 53. Elastic washer. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0037] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0038] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0039] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0040] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0041] Please see Figures 1 to 4 This embodiment provides a boom, including a boom body 1. Connecting seats 15 are provided on both sides of the end of the boom body 1. Different connecting seats 15 have coaxially arranged pin holes 13, and connecting pins 5 for connecting different booms are inserted into the pin holes 13. The boom also includes a drive component 2, a connecting rod assembly 3, and a reinforcing assembly. The drive component 2 is located between the connecting seats 15 on both sides of the boom body 1, and the drive component 2 is fixedly connected to the boom body 1. The drive component 2 and the connecting pins 5 are connected via the connecting rod assembly 3.

[0042] In some embodiments, the linkage assembly 3 includes two push rods 31 and two rocker arms 32. One end of each push rod 31 is hinged to the drive component 2, and the other end is hinged to one end of a different rocker arm 32. The ends of the different rocker arms 32 away from the push rods 31 are connected to the inner sides of different connecting pins 5 via cylindrical joints 33. The drive component 2, as a power source, converts linear motion into lateral movement in opposite directions via the linkage assembly 3. The drive component 2 can be one of a linear electric push rod 31, an electric cylinder, a pneumatic cylinder, or a ball screw.

[0043] In some embodiments, the connecting seat 15 is used to connect the boom body 1 to other booms. The connecting seat 15 is composed of an inner support plate 151 and an outer support plate 152 arranged parallel to each other and spaced apart, with a pin hole 13 passing through the inner support plate 151 and the outer support plate 152. An installation space for assembling other booms is formed between the inner support plate 151 and the outer support plate 152, and a portion of the through hole on the end of the other boom is inserted into the installation space. When connecting other booms, the connecting pin 5 passes sequentially through the pin hole 13 on the inner support plate 151, the through hole, and the pin hole 13 on the outer support plate 152.

[0044] In some embodiments, the edge regions of the pin hole 13 and the through hole are respectively provided with a first thickened boss 14 and a second thickened boss 41. The first thickened boss 14 and the second thickened boss 41 increase the thickness of the edge contour of the pin hole 13 and the through hole, thereby stabilizing the shape of the pin hole 13 and the through hole and preventing premature deformation due to long-term use. The first thickened boss 14 and the second thickened boss 41 increase the contact area between the pin hole 13, the through hole and the cylindrical surface of the connecting pin 5, thereby reducing the shearing action of the boom body 1 and other booms on the pin and increasing the service life of the connecting pin 5.

[0045] The drive component 2 controls the connecting pin 5 to pass through the pin hole 13 on the connecting seat 15, thereby connecting or separating the boom body 1 from other booms. When the connecting pin 5 passes through the pin hole 13 under the drive of the connecting rod assembly 3, the boom body 1 is connected to other booms; when the connecting pin 5 leaves the pin hole 13 under the drive of the connecting rod assembly 3, the boom body 1 is separated from other booms. This method of assembling and disassembling the boom body 1 from other booms saves labor, improves the efficiency of assembling or disassembling different booms, and makes the installation or removal of the connecting pin 5 fast and accurate.

[0046] Please see Figure 1 In the first embodiment of this application, the different rocker arms 32 are all V-shaped hockey sticks, with the V-shaped openings arranged opposite each other. The middle part of the rocker arm 32 is rotatably connected to the fixed frame 11 on the boom body 1. The cylindrical pair 33 includes a first sliding post 331 and an oblong hole 332. The oblong hole 332 is located at the end of the rocker arm 32 near the connecting pin 5. The connecting pin 5 is provided with a first sliding post 331 that matches the oblong hole 332. The driving component 2 drives different push rods 31 to deflect in different directions on both sides. The push rods 31 apply a thrust to one end of the rocker arm 32. The fixed frame 11 provides a fulcrum for the rotation of the rocker arm 32, causing the end of the rocker arm 32 near the connecting pin 5 to deflect. At this time, the first sliding post 331 on the connecting pin 5 is offset along the length direction of the oblong hole 332 on the rocker arm 32, causing the connecting pin 5 to slide laterally. The connecting pin 5 passes through the pin hole 13 on the connecting seat 15, so that the boom body 1 is connected to other booms. When the drive component 2 drives the connecting rod assembly 3 in the opposite direction, the connecting pin 5 slides away from the pin hole 13, causing the boom body 1 to separate from the other booms.

[0047] Please see Figure 2In the second embodiment of this application, all the rocker arms 32 are straight rods and arranged in an X-shaped cross configuration, with different rocker arms 32 rotatably connected at the intersection. The cylindrical joint 33 includes a second sliding post 333 and a circular hole 334. The circular hole 334 is located at the end of the rocker arm 32 near the connecting pin 5, and the connecting pin 5 is provided with a second sliding post 333 that mates with the circular hole 334. Compared with the first embodiment, the rocker arms 32 in the second embodiment provide a fulcrum for deflection through cross connection, simplifying the structure of the linkage assembly 3 without affecting the transmission effect of the linkage assembly 3. The cross connection points of different rocker arms 32 can move with the extension and retraction of the linkage assembly 3. The end of the rocker arm 32 near the connecting pin 5 applies a component force along the length direction of the connecting pin 5 to the connecting pin 5 through the cylindrical joint 33, allowing the connecting pin 5 to slide into or out of the pin hole 13. In the second embodiment, the second sliding pin 333 can also be located at one end of the rocker arm 32 near the connecting pin 5. The connecting pin 5 is provided with a round hole 334 that matches the second sliding pin 333. This method of setting the cylindrical pair 33 can prevent the rocker arm 32 from being weakened due to drilling holes in the rocker arm 32, and is conducive to extending the service life of the rocker arm 32.

[0048] Please see Figure 3 In the third embodiment of this application, the cylindrical pair 33 includes a third sliding post 335 and a sliding groove 336. The third sliding post 335 is provided at one end of the rocker arm 32 near the connecting pin 5, and the connecting pin 5 is provided with a sliding groove 336 that mates with the third sliding post 335. The length direction of the sliding groove 336 is perpendicular to the length direction of the connecting pin 5. When the end of the rocker arm 32 near the connecting pin 5 deflects, the third sliding post 335 moves along the length direction of the sliding groove 336, causing the connecting pin 5 to be separated along its length direction. At this time, the connecting pin 5 can pass into or out of the pin hole 13. In the third embodiment, the driving effect of the transmission component on the connecting pin 5 is ensured, and there is no need to drill holes in the rocker arm 32. This maintains the structural consistency of the rocker arm 32, prevents premature deformation of the rocker arm 32 with increasing usage time, and extends the service life of the rocker arm 32.

[0049] In some embodiments, a chamfer 52 is provided on the end face of the connecting pin 5 that passes through the pin hole 13. The chamfer 52 has a certain corrective function. When the connecting pin 5 is slightly deviated from the center of the pin hole 13, the chamfer 52 contacts the edge of the pin hole 13 and automatically fine-tunes the connecting pin 5 and the pin hole 13 to a coaxial position, so that the connecting pin 5 can be smoothly aligned with the center of the pin hole 13, ensuring the installation accuracy of the connecting pin 5.

[0050] Please see Figures 3 to 6In some embodiments, the connecting seat 15 is provided with a reinforcing component for fixing the connecting pin 5 at the position corresponding to the connecting pin 5. The reinforcing component can be fixed in the axial direction and circumferential direction of the connecting pin 5 respectively to prevent the connecting pin 5 from loosening after assembly and to ensure a stable connection between the boom body 1 and other booms.

[0051] In some embodiments, the reinforcing component includes an anti-rotation protrusion 12 disposed on the inner side of the inner support plate 151. The anti-rotation protrusion 12 is provided with a groove 121, and the inner side of the connecting pin 5 is provided with an anti-rotation protrusion 51 that mates with the groove 121. When the connecting pin 5 is fully inserted into the pin hole 13 under the drive of the connecting rod assembly 3, the anti-rotation protrusion 51 is embedded in the groove 121. The cooperation between the anti-rotation protrusion 51 and the anti-rotation protrusion 12 keeps the connecting pin 5 in a fixed state in the circumferential direction and prevents it from easily deflecting in the circumferential direction.

[0052] In some embodiments, the reinforcing assembly further includes a pressure plate 16 disposed on the outer side of the outer support plate 152. The planar dimension of the pressure plate 16 is larger than the diameter of the pin hole 13. The pressure plate 16 is provided with a plurality of evenly distributed screws 161, which pass through the pressure plate 16 and are screwed into the outer end of the connecting pin 5. Through the fixing of the screws 161 and the supporting effect of the pressure plate 16, the connecting pin 5 is kept fixed in the axial direction, preventing the connecting pin 5 from loosening axially.

[0053] In some embodiments, an elastic washer 53 is provided on the inner side of the inner support plate 151 at the position corresponding to the pin hole 13. The connecting pin 5 passes through the elastic washer 53, and the end face of the elastic washer 53 away from the inner side of the inner support plate 151 is in contact with the side of the connecting pin 5 near the inner support plate. As the connecting pin 5 is inserted into the pin hole 13, the inner head of the connecting pin 5 will continuously approach the inner support plate 151, which may cause local deformation or cracking of the component due to rigid collision. By providing an elastic washer 53 between the inner support plate 151 and the inner head of the connecting pin 5, a buffer area can be provided to reduce the adverse effects of rigid collision.

[0054] Please see Figure 4 This application provides a demolition machine for demolishing structures such as buildings and bridges. The demolition machine includes a body, a boom, and a second boom 4. One end of the boom is connected to the body, and the other end is connected to the second boom 4. A portion of the end of the second boom 4 is assembled into a connecting seat 15 on the boom. As the connecting pin 5 passes through the pin hole 13, it sequentially passes through the inner support plate 151, the second boom 4, and the outer support plate 152.

[0055] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A boom, comprising a boom body, wherein connecting seats are provided on both sides of one end of the boom body, and coaxially arranged pin holes are provided on each connecting seat, wherein a connecting pin is inserted into the pin hole, characterized in that, The boom body also includes: A drive component is provided between the connecting seats on both sides of the boom body, and the drive component is fixedly connected to the boom body; A linkage assembly, wherein the drive component and the connecting pin are connected via the linkage assembly; A reinforcement component is provided on the connector corresponding to the position of the connecting pin for fixing the connecting pin.

2. The boom according to claim 1, characterized in that, The linkage assembly includes two push rods and two rocker arms; one end of each of the two push rods is hinged to the drive component, and the other end is hinged to one end of each of the different rocker arms; the ends of the different rocker arms away from the push rods are connected to the inner sides of the different connecting pins through cylindrical joints.

3. The boom according to claim 2, characterized in that, The different rocker arms are all V-shaped hockey sticks, with the V-shaped openings arranged opposite each other; the middle part of the rocker arm is rotatably connected to the fixed frame on the boom body; the cylindrical pair includes a first sliding post and an oblong hole; the oblong hole is located at one end of the rocker arm near the connecting pin, and the connecting pin is provided with the first sliding post that matches the oblong hole.

4. The boom according to claim 2, characterized in that, All of the aforementioned rocker arms are straight rods and arranged in an X-shaped cross configuration, with the rocker arms rotatably connected at the crossover points; the cylindrical pair includes a second sliding post and a circular hole; the circular hole is located at one end of the rocker arm near the connecting pin, and the connecting pin has a second sliding post that mates with the circular hole; or the second sliding post is located at one end of the rocker arm near the connecting pin, and the connecting pin has the circular hole that mates with the second sliding post.

5. The boom according to claim 2, characterized in that, The cylindrical joint includes a third sliding post and a sliding groove; the third sliding post is provided at one end of the rocker arm near the connecting pin, and the sliding groove is provided on the connecting pin to cooperate with the third sliding post; the length direction of the sliding groove is perpendicular to the length direction of the connecting pin.

6. The boom according to any one of claims 1 to 5, characterized in that, The connecting seat is composed of an inner support plate and an outer support plate arranged parallel to each other and spaced apart. The pin hole passes through the inner support plate and the outer support plate, and the connecting pin passes through the pin hole.

7. The boom according to claim 6, characterized in that, The reinforcement assembly includes a pressure plate disposed on the outer side of the outer support plate. The planar dimension of the pressure plate is larger than the diameter of the pin hole. The pressure plate is provided with a plurality of evenly distributed screws, which pass through the pressure plate and are screwed into the outer end of the connecting pin.

8. The boom according to claim 6, characterized in that, The reinforcement assembly also includes an anti-rotation protrusion disposed on the inner side of the inner support plate. The anti-rotation protrusion has a groove, and the inner side of the connecting pin has an anti-rotation protrusion that matches the groove.

9. The boom according to claim 6, characterized in that, An elastic washer is provided on the inner side of the inner support plate corresponding to the position of the pin hole. The connecting pin passes through the elastic washer, and the end face of the elastic washer away from the inner side of the inner support plate is in contact with the side of the connecting pin close to the inner support plate.

10. A demolition machine, comprising a body, a second boom, and the boom as described in any one of claims 1 to 9, characterized in that, One end of the boom is connected to the machine body, and the other end is connected to the second boom via the boom connecting pin.

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