Concrete pipeline clamping type transportation forklift with lifting hook

Abstract

The utility model relates to the field of building construction equipment, and discloses a concrete pipeline clamping and holding type transportation forklift with a lifting hook, which comprises a forklift body, a moving frame positioned at the front end of the forklift body and vertically moving, and a holding clamp mounted on the moving frame, a locking mechanism used for locking the lifting hook is fixedly connected to the holding clamp, the locking mechanism comprises a cross rod, a through hole is formed in the cross rod, and the through hole is communicated with the through hole; the through hole is used for a lifting hook to penetrate through and is locked through a bolt, an annular groove is formed in the circumferential surface of the cross rod, and teeth are arranged on the surface of the annular groove; the semi-ring locking ring is used for being covered in the ring groove and meshed with the teeth; and the lock seat is welded to the holding clamp, the semi-ring locking ring is hinged to the lock seat, and the lock seat is used for locking the semi-ring locking ring. The technical problem that in the prior art, after a holding clamp is installed at the front end of a forklift, the function is single is solved, the purpose that a lifting hook is rapidly installed on the holding clamp is achieved, the function is expanded, and the transportation forklift is diversified in function.

Description

Technical Field

[0001] This application relates to the field of construction equipment, and particularly to a hook-equipped concrete pipe clamping and transporting forklift. Background Art

[0002] A concrete pipe clamping and transporting forklift is a forklift accessory device designed specifically for transporting concrete pipes. This device can safely and reliably transport various concrete pipe blanks, including chamber rings for sewer and drainage systems, as well as concrete pipes used in roads, agriculture, and water wells. The clamping jaws are installed at the front end of the transport forklift, and the hydraulic cylinder drives the closing and separation of the clamping jaws. The concrete pipes are lifted by the clamping jaws, and then the transport vehicle is driven to achieve the accurate placement of the concrete pipes.

[0003] However, in the process of implementing the related technical solutions, it is found that there are at least the following technical problems: After the clamping jaws are installed at the front end of the forklift, the functions become single. In the construction site, most materials can be lifted. Therefore, there is an urgent need for a transport forklift that has a hook and is capable of clamping concrete pipes. Summary of the Utility Model

[0004] This application provides a hook-equipped concrete pipe clamping and transporting forklift, which solves the technical problem of single function after the clamping jaws are installed at the front end of the forklift in the prior art, and realizes the rapid installation of a hook on the clamping jaws, expands the functions, and makes the functions of the transport forklift diversified.

[0005] This application provides a hook-equipped concrete pipe clamping and transporting forklift, which includes a vehicle body, a moving frame that is vertically movable and located at the front end of the vehicle body, and clamping jaws installed on the moving frame. A locking mechanism for locking the hook is fixedly connected to the clamping jaws. The locking mechanism includes: a cross bar, a perforation is provided on the cross bar, and the perforation is used for the hook to pass through and be locked by a bolt. A ring groove is provided on the circumferential surface of the cross bar, and teeth are provided on the surface of the ring groove; a semi-circular locking ring, which is used to cover the ring groove and engage with the teeth; a locking seat, which is welded to the clamping jaws, the semi-circular locking ring is hinged to the locking seat, and the locking seat is used to lock the semi-circular locking ring.

[0006] Further, the locking seat includes: a ring seat, which is welded to the clamping jaws, the ring seat is in the shape of a superior arc circle, and the top surface is a plane. One end of the semi-circular locking ring is hinged to one side of the top of the ring seat; a T-shaped plate, which is located in the ring seat. A guide rod is fixedly connected to one side wall of the vertical plate of the T-shaped plate. A card slot is provided on the inner wall of the end of the semi-circular locking ring that is far away from the hinge with the ring seat. One end of the T-shaped plate is matched with the card slot; a spring, a counterbore is provided on the inner wall of the ring seat, one end of the spring is fixed to the bottom of the counterbore, and the other end is fixed to the vertical plate of the T-shaped plate, and the guide rod passes through the spring.

[0007] Furthermore, sealing end plates are fixedly connected to both ends of the circular seat in the axial direction. A limiting short cylinder is fixed to the inner wall of the sealing end plate at one end, and a keyhole is formed in the other sealing end plate. The lock seat further includes a key plate, which includes a swing plate and an insertion rod fixedly connected to each other. The insertion rod is used to be inserted into the limiting short cylinder, and the swing plate is used to push the vertical plate of the T-shaped plate to move.

[0008] Furthermore, a side groove is formed in the top surface of the circular seat away from the end hinged to the semi-circular locking ring. The horizontal plate of the T-shaped plate is located above the side groove, and the side groove is a placement area for the end of the semi-circular locking ring.

[0009] Furthermore, the clamping device includes a fixed plate, a left clamping plate and a right clamping plate hinged to the fixed plate, and hydraulic cylinders hinged to both ends of the fixed plate. The telescopic rods in the hydraulic cylinders on both sides are respectively hinged to the left clamping plate and the right clamping plate. Both the left clamping plate and the right clamping plate are frame-shaped plates composed of multiple arc-shaped rods. Lock seats are fixed on both the left clamping plate and the right clamping plate, and both ends of the cross bar pass through the lock seats on both sides.

[0010] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0011] Due to the adoption of the hook-equipped concrete pipe clamping and transporting forklift, a hook can be installed between the lock seats on the left clamping plate and the right clamping plate to realize the lifting function, or a hook can be installed on the lock seat on one side of the clamping plate to realize the clamping function and the lifting function of the concrete pipe, solving the technical problem of the single function after the clamping device is installed at the front end of the existing forklift, realizing the quick installation of the hook on the clamping device, expanding the function, and making the functions of the transporting forklift diversified. Description of the Drawings

[0012] Figure 1 Schematic diagram of the clamping device of the clamping and transporting forklift for clamping concrete pipes in the embodiment of the present application;

[0013] Figure 2 Schematic diagram of the hook installed on the clamping device in the embodiment of the present application;

[0014] Figure 3 is Figure 2 Schematic diagram of a part of the structure in

[0015] Figure 4 is Figure 3 Schematic cross-sectional view of a part of the structure in

[0016] In the figure: 1, vehicle body; 2, moving frame; 3, clamping device; 31, fixing plate; 32, left clamping plate; 33, right clamping plate; 34, hydraulic cylinder; 4, hook; 5, locking mechanism; 51, cross bar; 511, perforation; 512, annular groove; 513, tooth; 52, semi-circular locking ring; 521, clamping groove; 53, locking seat; 531, ring seat; 5311, counterbore; 5312, side groove; 532, T-shaped plate; 5321, guide rod; 533, spring; 534, sealing end plate; 5341, keyhole; 535, limiting short cylinder; 536, key plate; 5361, swing plate; 5362, inserting rod. Detailed implementation mode

[0017] To better understand the technical solution of the present application, the technical solution of the present application will be described in detail below in conjunction with the specification drawings and specific implementation modes.

[0018] Refer to Figure 1 and Figure 2 , a forklift for transporting concrete pipes in a clamping manner with a hook, including a vehicle body 1, a moving frame 2, a clamping device 3, a hook 4 and a locking mechanism 5. The moving frame 2 is located at the front end of the vehicle body 1 and can be vertically moved by the lifting system of the forklift, and the clamping device 3 is installed on the moving frame 2. The clamping device 3 includes a fixing plate 31, a left clamping plate 32, a right clamping plate 33 and a hydraulic cylinder 34. The fixing plate 31 is fixed on the moving frame 2. The left clamping plate 32 and the right clamping plate 33 are symmetrically arranged and are respectively hinged on both sides of the fixing plate 31. Both the left clamping plate 32 and the right clamping plate 33 are frame-shaped plates composed of multiple arc-shaped rods. There are two hydraulic cylinders 34, which are respectively located on both sides of the fixing plate 31. The base of the hydraulic cylinder 34 is hinged on the fixing plate 31, and the telescopic rod of the hydraulic cylinder 34 is hinged on the clamping plate. The left clamping plate 32 and the right clamping plate 33 can clamp the concrete pipe in the combined state.

[0019] Refer to Figure 2 and Figure 3 , the locking mechanism 5 includes a cross bar 51, a semi-circular locking ring 52 and a locking seat 53. The cross bar 51 is a round bar, and a perforation 511 is opened in the middle of the cross bar 51. The connection part of the hook 4 passes through the perforation 511 on the cross bar 51, and the hook 4 can be locked to the cross bar 51 through two bolts up and down. There are two locking seats 53, and the two locking seats 53 are respectively welded on the left clamping plate 32 and the right clamping plate 33 and are located on the outer side walls of the clamping plates. A semi-circular locking ring 52 is hinged on each locking seat 53.

[0020] Continue to refer to Figure 3 and Figure 4, the lock base 53 includes a ring base 531, a T-shaped plate 532, a spring 533, and a sealing end plate 534. The ring base 531 is circular in shape and in the form of a major arc ring. The ring base 531 is welded to the outer wall of the clamping plate. The axis of the ring base 531 is horizontal, and the top surface of the ring base 531 is flat. One end of the semi-circular lock ring 52 is hinged to one side of the top of the ring base 531. An edge groove 5312 is formed in the top surface of the ring base 531 away from the end hinged to the semi-circular lock ring 52. The edge groove 5312 is the placement area for the end of the semi-circular lock ring 52 away from the hinged end. The T-shaped plate 532 is located in the ring base 531. The horizontal plate of the T-shaped plate 532 is located above the edge groove 5312 and fits against the top surface of the ring base 531. The vertical plate of the T-shaped plate 532 is located in the inner cavity of the ring base 531. A guide rod 5321 is perpendicularly fixed to one side wall of the vertical plate of the T-shaped plate 532. A counterbore 5311 is formed in the inner wall of one side of the ring base 531. The guide rod 5321 is located in the counterbore 5311. The spring 533 is also located in the counterbore 5311 and the guide rod 5321 is located in the spring 533. One end of the spring 533 is fixed to the bottom of the counterbore 5311, and the other end is fixed to the vertical plate of the T-shaped plate 532. Among them, when the vertical plate of the T-shaped plate 532 is in contact with the side wall of the ring base 531 away from the spring 533, the guide rod 5321 still remains in the counterbore 5311. In addition, a clamping groove 521 is formed in the inner wall of the semi-circular lock ring 52 away from the end hinged to the ring base 531. The cross-section of the clamping groove 521 is in the shape of a right triangle. The end of the T-shaped plate 532 away from the spring 533 cooperates with the clamping groove 521.

[0021] After swinging the semi-circular lock ring 52 away from the hinged end towards the edge groove 5312 on the ring base 531, the clamping groove 521 of the semi-circular lock ring 52 will cooperate with the end of the T-shaped plate 532. And under the action of the spring 533, the T-shaped plate 532 is always pressed tightly against the semi-circular lock ring 52, so that the semi-circular lock ring 52 can be locked on the ring base 531.

[0022] Continue to refer to Figure 3 and Figure 4, sealing end plates 534 are fixedly connected to both ends of the ring seat 531 in the axial direction. A limiting short cylinder 535 is fixed to the inner wall of one of the sealing end plates 534. The axis of the limiting short cylinder 535 is collinear with the axis of the ring seat 531. A keyhole 5341 is formed in the other sealing end plate 534, and the sealing end plate 534 provided with the keyhole 5341 is the side plate away from the clamping jaw 3; the lock seat 53 further includes a key plate 536. The key plate 536 includes a swing plate 5361 and a plug rod 5362 that are fixedly connected to each other. The plug rod 5362 is located at the edge of one side of the swing plate 5361. The shape of the keyhole 5341 is the same as the cross-sectional shape of the key plate 536, and the key plate 536 can be passed through the keyhole 5341. After passing the key plate 536, the plug rod 5362 is inserted into the limiting short cylinder 535. By rotating the plug rod 5362, the swing plate 5361 can push the T-shaped plate 532 to move horizontally, so that the T-shaped plate 532 can be separated from the half-ring lock ring 52, realizing the unlocking of the half-ring lock ring 52. Therefore, the sealing end plate 534 can be used to seal the inner cavity of the ring seat 531, preventing external forces from acting on the T-shaped plate 532, and only the key plate 536 can be used to realize the movement of the T-shaped plate 532, improving safety.

[0023] Continue to refer to Figure 3 and Figure 4 , annular grooves 512 are formed on the circumferential surfaces at both ends of the cross bar 51, and teeth 513 are formed on the surfaces of the annular grooves 512. The half-ring lock ring 52 can cover the annular grooves 512, and teeth are also provided on the inner wall of the half-ring lock ring 52 and are engaged with the teeth 513 on the cross bar 51. Therefore, the cross bar 51 can be locked on the lock seat 53.

[0024] The functional principle of this application can be described through the following operation methods:

[0025] When only the transport forklift is needed to carry out the work of transporting concrete pipes, the cross bar 51 is removed, and only the clamping jaw 3 is used to carry out the work of transporting concrete pipes. When only the transport forklift is needed to carry out the hoisting work, the two ends of the cross bar 51 are respectively inserted into the lock seats 53 of the left clamping plate 32 and the right clamping plate 33, and the teeth 513 of the cross bar 51 are engaged with the half-ring lock ring 52. Then, the half-ring lock ring 52 is locked by using the lock seat 53. Therefore, the cross bar 51 can be tightly locked on the lock seat 53. The lifting hook 4 can carry out the hoisting work, and both ends of the cross bar 51 act on the left clamping plate 32 and the right clamping plate 33 respectively, improving the bearing capacity of the lifting hook 4. When it is necessary to carry concrete pipes and hoist at the same time, only a short cross bar 51 is used to lock on one side of the lock seat 53, and the cross bar 51 is located outside the clamping plate. A lifting hook 4 is fixed on the cross bar 51. Thus, the technical problem of the single function of the forklift after the clamping jaw 3 is installed at the front end of the existing technology is solved, and the lifting hook 4 can be quickly installed on the clamping jaw 3, expanding the function and making the functions of the transport forklift diversified.

[0026] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

[0027] The above are only the preferred specific implementation manners of the embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solution and its concept of this application, makes equivalent substitutions or changes, and should be covered by the protection scope of this application.

Claims

1. A hook-equipped concrete pipe clamping and transporting forklift, comprising a vehicle body (1), a moving frame (2) located at the front end of the vehicle body (1) and vertically movable, and a clamping device (3) installed on the moving frame (2), characterized in that, A locking mechanism (5) for locking a lifting hook (4) is fixedly connected to the clamping jaw (3). The locking mechanism (5) includes: A cross bar (51) is provided with a perforation (511) through which the lifting hook (4) passes and is locked by a bolt. An annular groove (512) is provided on the circumferential surface of the cross bar (51), and teeth (513) are provided on the surface of the annular groove (512); A semi-circular locking ring (52) is used to cover the annular groove (512) and engage with the teeth (513); A locking seat (53) is welded to the clamping jaw (3). The semi-circular locking ring (52) is hinged to the locking seat (53), and the locking seat (53) is used to lock the semi-circular locking ring (52).

2. The clamping and transporting forklift for concrete pipes with a hook according to claim 1, characterized in that The locking seat (53) includes: A circular seat (531) is welded to the clamping jaw (3). The circular seat (531) is in the shape of a superior arc circle, and its top surface is flat. One end of the semi-circular locking ring (52) is hinged to one side of the top of the circular seat (531); A T-shaped plate (532) is located in the circular seat (531). A guide rod (5321) is fixedly connected to one side wall of the vertical plate of the T-shaped plate (532). A clamping groove (521) is provided on the inner wall of the end of the semi-circular locking ring (52) far from the hinged end with the circular seat (531). One end of the T-shaped plate (532) is matched with the clamping groove (521); A spring (533) is provided. A counterbore (5311) is provided on the inner wall of the circular seat (531). One end of the spring (533) is fixed to the bottom of the counterbore (5311), and the other end is fixed to the vertical plate of the T-shaped plate (532). The guide rod (5321) passes through the spring (533).

3. The clamping and transporting forklift for concrete pipes with a hook according to claim 2, characterized in that, Sealing end plates (534) are fixedly connected to both ends of the circular seat (531) in the axial direction. A limiting short cylinder (535) is fixed to the inner wall of one of the sealing end plates (534), and a keyhole (5341) is provided on the other sealing end plate (534). The locking seat (53) further includes a key plate (536). The key plate (536) includes a swing plate (5361) and an insertion rod (5362) fixedly connected to each other. The insertion rod (5362) is used to be inserted into the limiting short cylinder (535), and the swing plate (5361) is used to push the vertical plate of the T-shaped plate (532) to move.

4. The clamping and transporting forklift for concrete pipes with a hook according to claim 2, characterized in that, An edge groove (5312) is provided on the top surface of the circular seat (531) far from the end hinged to the semi-circular locking ring (52). The horizontal plate of the T-shaped plate (532) is located above the edge groove (5312). The edge groove (5312) is a placement area for the end of the semi-circular locking ring (52).

5. The clamping and transporting forklift for concrete pipes with a hook according to claim 1, characterized in that, The clamping device (3) includes a fixed plate (31), a left clamping plate (32) and a right clamping plate (33) hinged to the fixed plate (31), and hydraulic cylinders (34) hinged to both ends of the fixed plate (31). The telescopic rods in the hydraulic cylinders (34) on both sides are respectively hinged to the left clamping plate (32) and the right clamping plate (33). Both the left clamping plate (32) and the right clamping plate (33) are frame-shaped plates composed of multiple arc-shaped rods. Lock seats (53) are fixed on both the left clamping plate (32) and the right clamping plate (33). Both ends of the cross bar (51) pass through the lock seats (53) on both sides.

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