Building material transfer device
By designing a rotary positioning device and a building material transport device that automatically adjusts the contact between the plywood surface, the problems of easy shaking and unstable building materials in the prior art are solved, and stable transport and efficient clamping effects are achieved.
Patent Information
- Application Number
- CN202421647830.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-12
AI Technical Summary
During the transfer process, the existing building materials transfer devices are prone to shaking, unstable, and prone to falling off due to the articulation between the clamping device and the lever.
A building material transfer device including a moving frame, lever, hoisting part, hinge piece and ply plate is designed. The lifting part is positioned through a rotary positioning device to avoid unstable swing; the ply plate can rotate along a fixed axis, automatically adjusting the contact between the clamping surface and the building material surface to improve the clamping effect; the lifting part is a "U"-shaped plate, and the hinge piece is automatically perpendicular under the action of gravity, and the instant surface contacts and clamps.
The stability of building materials during the transportation process has been improved, the risk of building materials falling off is reduced, the clamping effect of building materials of different sizes is improved, and the friction is increased through the rough clamping surface.
Smart Images
Figure CN222859450U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a building material transport device, belonging to the field of building material transport tools. Background Art
[0002] The existing short-distance construction material transfer device for construction sites is composed of a mobile base, a lever and a clamping device, which greatly facilitates the short-distance transfer of construction materials. However, it also has shortcomings. Specifically, in order to facilitate the clamping of the construction materials by the clamping device, the clamping device and the lever are hinged. In this way, during the transfer process, the construction materials at the end of the lever and the clamping device as a whole will continue to shake as they move, affecting the stability of the transfer and making it easy for the construction materials to fall off.
[0003] That is, a building material transfer device is needed to facilitate the stable transfer of building materials. Summary of the invention
[0004] In view of this, the purpose of the utility model is to provide a building material transfer device, which can facilitate the stable transfer of building materials and overcome the shortcomings of the prior art.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] The utility model discloses a building material transfer device, which comprises a moving frame, a lever is hinged on the moving frame, a handle is arranged at the rear end of the lever, a lifting part is hinged on the front end of the lever, a mounting shaft is arranged on the lifting part, two connecting plates are hinged on the mounting shaft, a hinge piece is connected to the free end of the connecting plate, the middle parts of the hinge pieces are hinged to each other, a clamping plate is arranged at the lower end of the hinge piece, a contraction device of the hinge piece is arranged on the lever, a rotation positioning device of the lifting part is arranged at the front end of the lever, a fixed shaft is arranged at the lower end of the hinge piece, and the clamping plate is located on the fixed shaft and can rotate along the fixed shaft.
[0007] The lever is an "L"-shaped rod with an opening facing upward, the "L"-shaped rod is hinged to the fixed axis of the movable frame, a connecting rod is fixed to the upper end of the short side of the "L"-shaped rod, and the hoisting part is hinged to the connecting rod.
[0008] The above-mentioned lifting part is a "U"-shaped plate hinged to the lower side of the connecting rod through a fixed axis, the installation axis of the connecting plate is located at the lower part of the "U"-shaped plate, and the rotation positioning device includes positioning holes distributed along the circumference of the fixed axis on the "U"-shaped plate, a fixing plate provided on the mounting frame or the fixed axis, and an automatic locking device that cooperates with the positioning holes is provided on the fixing plate.
[0009] The above-mentioned automatic locking device includes a locking pin that cooperates with the positioning hole, a sleeve for accommodating the locking pin is provided on the fixing plate, a limit block is provided in the middle of the locking pin, and a compression spring is provided on the locking pin between the limit block and the bottom of the sleeve. The compression spring keeps the locking pin pushed toward the positioning hole, a first traction rope is provided at one end of the locking pin close to the compression spring, and a traction handle connected to the first traction rope is provided on the handle.
[0010] In the above, a positioning column is provided at the lower end of one of the hinges, and a baffle is movably connected to the positioning column. The back side of the baffle is connected to the hinge, and the other side of the baffle away from the hinge end is supported on the clamping plate.
[0011] The aforementioned contraction device includes a second traction rope connected to the hinge installation shaft, the second traction rope is connected to the pull rod provided on the lever, and the tightening or loosening of the pull rod controls the lifting and retraction of the hinge.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The utility model can limit the position of the lifting part through the rotating positioning device, thereby avoiding instability caused by swinging during transportation, which is conducive to stable transportation; at the same time, in the prior art, the clamping plate at the lower end of the hinge piece is fixedly connected to the hinge piece. In this way, when clamping building materials, the hinge piece is lowered by the telescopic device, and the opening angle between the hinge pieces changes, that is, in the vertical direction, the clamping surface of the clamping plate cannot always remain vertical. When clamping building materials of different sizes, the side surface of the clamping plate and the building material may only be clamped in line contact, which makes it easy for the building materials to fall off. The clamping plate can rotate along the fixed axis, so that when clamping the building materials, the clamping plate can automatically rotate its position, thereby achieving surface contact between the clamping surface of the clamping plate and the building materials, increasing the force-bearing area, and thus improving the clamping effect of the building materials. In order to further improve the clamping effect of the building materials, the clamping surface of the clamping plate is designed to be a rough surface, thereby increasing the friction of the clamping.
[0014] 2. The lifting part is a "U"-shaped plate hinged to the lower side of the connecting rod through a fixed axis, and the mounting axis of the connecting plate is located at the lower part of the "U"-shaped plate. The rotation positioning device includes positioning holes distributed along the circumference of the fixed axis on the "U"-shaped plate, and a fixed plate provided on the mounting frame or the fixed axis. An automatic locking device that cooperates with the positioning holes is provided on the fixed plate. With such a structure, the "U"-shaped plate can rotate on the fixed axis at the end of the connecting rod. In this way, when clamping building materials, the hinge automatically becomes vertical under the action of gravity, which is convenient for surface contact clamping of the building materials and improves the stability of clamping during the transportation process.
[0015] 3. The automatic locking device includes a locking pin that cooperates with the positioning hole, a sleeve for accommodating the locking pin is provided on the fixing plate, a limit block is provided in the middle of the locking pin, and a compression spring is provided on the locking pin between the limit block and the bottom of the sleeve. The compression spring keeps the locking pin pushed toward the positioning hole, and a first traction rope is provided at one end of the locking pin close to the compression spring. A traction handle connected to the first traction rope is provided on the handle. With such a structure, when it is necessary to clamp the building materials, the first traction rope is pulled by the traction handle to unlock the lifting part, so that the hinge piece can automatically droop to clamp the building materials.
[0016] 4. The retraction device includes a second traction rope connected to the hinge installation shaft, the second traction rope is connected to the pull rod provided on the lever, and the tightening or loosening of the pull rod controls the lifting and retraction of the hinge; with such a structure, when it is necessary to clamp the building materials, the second traction rope is pulled by the pull rod to pull up the hinge, and the angle of the hinge is increased, thereby facilitating the clamping of building materials of different sizes.
[0017] 5. By adding a baffle, the baffle can provide side support when the device clamps multiple building materials. The baffle is hinged at one end and does not affect the opening and closing of the hinge. After clamping multiple neatly stacked building materials, the building materials are leaned back under the side support of the baffle during the transportation process, as shown in the figure. In this way, multiple building materials can be transported at the same time.
[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:
[0020] Figure 1 It is a schematic diagram of the three-dimensional connection structure of the utility model.
[0021] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A.
[0022] Figure 3 It is a side view of the utility model.
[0023] Figure 4 It is a half-section view of the automatic locking device of the utility model.
[0024] Figure 5 It is a schematic diagram of the three-dimensional connection structure of the second embodiment of the utility model.
[0025] Figure 6 It is a front view of the second embodiment of the utility model.
[0026] Figure 7 This is a schematic diagram of the rotating block of the second embodiment of the utility model.
[0027] Among them, there are a movable frame 1, a lever 2, a handle 3, a lifting part 4, a connecting plate 5, a hinge 6, a clamp 7, a retracting device 8, a fixed shaft 9, a connecting rod 10, a positioning hole 11, a fixed plate 12, a locking pin 13, a sleeve 14, a limit block 15, a compression spring 16, a traction handle 17, a baffle 18, and a pull rod 19. DETAILED DESCRIPTION
[0028] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.
[0029] Example 1
[0030] like Figure 1-Figure 4As shown, the utility model discloses a building material transfer device, which includes a mobile frame 1 composed of a pair of rolling wheels and a rotating shaft, a lever 2 is hinged on the mobile frame 1, a handle 3 is provided at the rear end of the lever 2, and a lifting part 4 is hinged at the front end of the lever 2. Specifically, the lever 2 is an "L"-shaped rod with an opening facing upward, and the corner of the "L"-shaped rod is hinged to the fixed axis of the mobile frame 1. Specifically, the "L"-shaped rod is hinged on the roller axle, and a connecting rod 10 is fixed at the upper end of the short side of the "L"-shaped rod, and the lifting part 4 is hinged on the connecting rod 10; a mounting shaft is provided on the lifting part 4, and two connecting plates 5 are hinged on the mounting shaft, and a hinge piece 6 is connected to the free end of the connecting plate 5, and the middle parts of the hinge piece 6 are hinged to each other, and a splint 7 is provided at the lower end of the hinge piece 6, and a contraction device 8 of the hinge piece 6 is provided on the lever 2, and a rotation positioning device of the lifting part 4 is provided at the front end of the lever 2, and a fixed shaft 9 is provided at the lower end of the hinge piece 6, and the splint 7 is located on the fixed shaft 9 and can rotate along the fixed shaft 9 Rotation, such a structure can limit the position of the lifting part 4 through the rotation positioning device, thereby avoiding instability caused by swinging during transportation, which is conducive to stable transportation; at the same time, in the prior art, the clamping plate 7 at the lower end of the hinge piece 6 is fixedly connected to the hinge piece 6. In this way, when clamping building materials, the hinge piece 6 is lowered by the telescopic device 8, and the opening angle between the hinge pieces 6 changes, that is, in the vertical direction, the clamping surface of the clamping plate 7 cannot always remain vertical. When clamping building materials of different sizes, the side surface of the clamping plate 7 and the building material may only be clamped in line contact. In this way, it is easy for the building material to fall off. The clamping plate 7 can rotate along the fixed axis 9. In this way, when clamping the building material, the clamping plate 7 can automatically rotate its position, thereby achieving surface contact between the clamping surface of the clamping plate 7 and the building material, increasing the force-bearing area, and thus improving the clamping effect of the building material. In order to further improve the clamping effect of the building material, the clamping surface of the clamping plate 7 is designed to be a rough surface, thereby increasing the clamping friction.
[0031] Furthermore, the lifting part 4 is a "U"-shaped plate hinged to the lower side of the connecting rod 10 through a fixed axis, and the installation axis of the connecting plate 5 is located at the lower part of the "U"-shaped plate. The rotation positioning device includes positioning holes 11 distributed along the circumference of the fixed axis on the "U"-shaped plate, and a fixed plate 12 is provided on the mounting frame or the fixed axis. An automatic locking device that cooperates with the positioning holes 11 is provided on the fixed plate 12. With such a structure, the "U"-shaped plate can rotate on the fixed axis at the end of the connecting rod 10. In this way, when clamping building materials, the hinge 6 automatically becomes vertical under the action of gravity, which is convenient for surface contact clamping of the building materials and improves the stability of clamping during the transportation process.
[0032] Furthermore, the automatic locking device includes a locking pin 13 that cooperates with the positioning hole 11, a sleeve 14 for accommodating the locking pin 13 is provided on the fixing plate 12, a limit block 15 is provided in the middle of the locking pin 13, and a compression spring 16 is provided on the locking pin 13 between the limit block 15 and the bottom of the sleeve 14. The compression spring 16 keeps the locking pin 13 pushed toward the positioning hole 11, and a first traction rope is provided at one end of the locking pin 13 close to the compression spring 16, and a traction handle 17 connected to the first traction rope is provided on the handle 3. With such a structure, when it is necessary to clamp the building materials, the first traction rope is pulled by the traction handle 17 to unlock the lifting part 4, so that the hinge 6 can automatically droop to clamp the building materials.
[0033] Furthermore, the retraction device 8 includes a second traction rope connected to the mounting shaft of the hinge piece 6, the second traction rope is connected to the pull rod 19 provided on the lever 2, and the tightening or loosening of the pull rod 19 controls the lifting and retraction of the hinge piece 6; with such a structure, when it is necessary to clamp the building materials, the second traction rope is pulled by the pull rod 19, thereby pulling up the hinge piece 6, and the angle of the hinge piece 6 is increased, thereby facilitating the clamping of building materials of different sizes.
[0034] When in use, the first traction rope is pulled by the traction handle 17 to unlock the lifting part 4, and the hinge 6 automatically droops; at the same time, the second traction rope is pulled by the pull rod 19 to pull up the hinge 6, and the angle of the hinge 6 increases. Then the pull rod 19 is released, and the hinge 6 automatically falls under gravity and clamps on both sides of the building material. The lever 2 is lifted, and then the splint 7 stably clamps the building material and lifts it. At this time, the traction handle 17 is released, and the locking pin 13 of the automatic locking device locks the positioning hole 11, thereby preventing the building material from shaking during the movement.
[0035] Example 2
[0036] like Figure 5-Figure 7 As shown, this embodiment is improved on the basis of embodiment 1, that is, a baffle 18 is added. Specifically, a positioning column is provided at the lower end of one of the hinges 6, and a baffle 18 is movably connected to the positioning column. The back side of the baffle 18 is connected to the hinge 6, and the other side of the baffle 18 away from the hinge end is supported on the clamping plate 7. In this way, by adding the baffle 18, the baffle 18 can be used to provide side support when the device clamps multiple building materials, and the baffle 18 is hinged at one end, which does not affect the opening and closing of the hinge 6. After clamping multiple neatly stacked building materials, the building materials are leaned back under the side support of the baffle 18 during the transportation process, as shown in FIG. Figure 7 As shown, multiple pieces of building materials can be transported at the same time.
[0037] The above is only a preferred embodiment of the utility model, and does not limit the confidentiality of the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still falls within the scope of the technical solution of the utility model.
Claims
1. A building material transfer device, comprising a mobile frame (1), a lever (2) is hinged on the mobile frame (1), a handle (3) is provided at the rear end of the lever (2), a lifting part (4) is hinged on the front end of the lever (2), a mounting shaft is provided on the lifting part (4), two connecting plates (5) are hinged on the mounting shaft, a hinge (6) is connected to the free end of the connecting plate (5), the middle parts of the hinge (6) are hinged to each other, a clamping plate (7) is provided at the lower end of the hinge (6), and a retracting device (8) of the hinge (6) is provided on the lever (2), characterized in that A rotation positioning device of the lifting part (4) is provided at the front end of the lever (2), a fixed shaft (9) is provided at the lower end of the hinge (6), and the clamping plate (7) is located on the fixed shaft (9) and can rotate along the fixed shaft (9).
2. The building material transfer device according to claim 1, characterized in that: The lever (2) is an "L"-shaped rod with an opening facing upwards. The "L"-shaped rod is hinged to the movable frame (1) on a fixed axis. A connecting rod (10) is fixed to the upper end of the short side of the "L"-shaped rod. The hoisting portion (4) is hinged to the connecting rod (10).
3. The building material transfer device according to claim 2, characterized in that: The hoisting portion (4) is a "U"-shaped plate hinged to the lower side of the connecting rod (10) via a fixed axis, the mounting axis of the connecting plate (5) is located at the lower part of the "U"-shaped plate, and the rotation positioning device comprises positioning holes (11) distributed along the circumference of the fixed axis on the "U"-shaped plate, a fixing plate (12) provided on the mounting frame or the fixed axis, and an automatic locking device that cooperates with the positioning holes (11) is provided on the fixing plate (12).
4. The building material transfer device according to claim 3, characterized in that: The automatic locking device comprises a locking pin (13) which cooperates with the positioning hole (11); a sleeve (14) for accommodating the locking pin (13) is provided on the fixing plate (12); a limit block (15) is provided in the middle of the locking pin (13); a compression spring (16) is provided on the locking pin (13) between the limit block (15) and the bottom of the sleeve (14); the compression spring (16) keeps the locking pin (13) pushed in the direction of the positioning hole (11); a first traction rope is provided at one end of the locking pin (13) close to the compression spring (16); and a traction handle (17) connected to the first traction rope is provided on the handle (3).
5. The building material transfer device according to claim 1, characterized in that: A positioning column is provided at the lower end of one of the hinges (6), and a baffle (18) is movably connected to the positioning column. The back side of the baffle (18) is connected to the hinge (6), and the other side of the baffle (18) away from the hinge end is supported on the clamping plate (7).
6. The building material transfer device according to claim 1, characterized in that: The retracting device (8) comprises a second traction rope connected to the mounting shaft of the hinge piece (6), the second traction rope being connected to a pull rod (19) provided on the lever (2), and the tightening or loosening of the pull rod (19) controlling the lifting, retraction and extension of the hinge piece (6).