Concrete placing boom locking mechanism

Abstract

The present application belongs to the technical field of construction engineering, and discloses a locking mechanism for a concrete placing machine, comprising a support base, a concrete placing machine body arranged on the top of the support base, a fixed roller assembly and a rotating roller assembly respectively fixedly connected to the left and right sides of the bottom of the support base, and a rotating pull rod arranged on the right side of the top of the support base, wherein sliding holes are provided at the four corners of the support base, a sliding rod is slidably inserted in the interior of the sliding hole, a supporting bottom plate is fixedly connected to the bottom end of the sliding rod, a plurality of limiting grooves are provided on the inner surface of the sliding rod, a hollow cavity body 2 is provided in the middle of the support base, and a threaded sleeve is threadedly connected to the outer side of the bidirectional screw rod, and a limiting block matched with the limiting groove is fixedly connected to the surface of the threaded sleeve, and the present application adopts an electric driving method, which saves a lot of time and improves work efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of construction engineering, and more specifically, to a locking mechanism of a concrete placing boom. Background Art

[0002] The concrete placing boom is the terminal equipment for pumping concrete. Its function is to deliver the concrete pressed by the pump through a pipe to the formwork of the component to be cast. The combined movement of the two-part revolving frame can cover the placing points within the placing radius.

[0003] A search of the publication (announcement) number: CN217975436U discloses a concrete placing machine, including a device base, characterized in that: a support mechanism is fixedly connected to each corner of the top of the device base, a drive output mechanism is fixedly connected to one side of the top of the device base, and a storage box is fixedly connected to the top of the drive output mechanism... The application realizes rapid transfer of the entire device by designing a fixed roller assembly and a rotating roller assembly. At the same time, the support mechanism can prevent the heavier concrete from damaging the roller during operation. However, when the application needs to operate multiple limit support columns, the limit support columns need to be clamped one by one, which consumes a lot of time and reduces work efficiency.

[0004] In order to solve the above problems, the present application provides a locking mechanism for a concrete placing boom. Utility Model Content

[0005] The present application provides the following technical solutions: a locking mechanism for a concrete placing boom, comprising a support base, a concrete placing boom body arranged on the top of the support base, a fixed roller assembly and a rotating roller assembly respectively fixedly connected to the left and right sides of the bottom of the support base, and a rotating pull rod arranged on the right side of the top of the support base, wherein the four corners of the support base are provided with sliding holes, a sliding rod is slidably inserted in the interior of the sliding hole, the bottom end of the sliding rod is fixedly connected to a support bottom plate, a plurality of limit grooves are arranged on the inner surface of the sliding rod, a hollow cavity body 2 is arranged in the middle of the support base, and openings are arranged at both ends of the hollow cavity body 2. A hollow cavity body 1 is arranged inside the supporting base, and a driving assembly is arranged on the inner wall of the hollow cavity body 2. A rotating rod is rotatably connected inside the hollow cavity body 2, and a slave gear is fixedly sleeved on the outer side of the rotating rod. A bidirectional screw rod is rotatably connected inside the hollow cavity body 1, and the bidirectional screw rod and the rotating rod are connected by a transmission assembly. A rectangular groove is provided on the inner wall of the sliding hole, and both ends of the bidirectional screw rod extend to the inside of the rectangular groove. A matching threaded sleeve is slidably connected inside the rectangular groove, and the threaded sleeve is threadedly connected to the outer side of the bidirectional screw rod, and a limit block matching the limit groove is fixedly connected on the surface of the threaded sleeve.

[0006] Through the above technical solution, electric driving is adopted, which saves a lot of time and improves work efficiency.

[0007] Furthermore, the driving assembly includes a groove opened on the second inner wall of the cavity body, the inner wall of the groove is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, and the outer side of the rotating shaft is fixedly sleeved with a main gear.

[0008] Through the above technical solution, the rotating rod can be driven to rotate.

[0009] Furthermore, the main gear and the slave gear are meshed and transmission-connected, two mounting plates are fixedly connected inside the second cavity, and the rotating rod is rotationally connected to the middle of the two mounting plates.

[0010] Through the above technical solution, the rotating rod is rotatably connected to the middle parts of the two mounting plates.

[0011] Furthermore, the transmission assembly includes bevel gear 1 and bevel gear 2, the outer side of the bidirectional screw is fixedly sleeved with bevel gear 2, the outer sides of both ends of the rotating rod are fixedly sleeved with bevel gear 1, and bevel gear 1 and bevel gear 2 are meshingly connected.

[0012] Through the above technical solution, the bidirectional screw rod can be driven to rotate when the rotating rod rotates.

[0013] Furthermore, the distances between two adjacent limiting grooves are equal, and the limiting blocks extend into the inside of the limiting grooves.

[0014] By means of the above technical solution, the sliding rod can be limited.

[0015] Furthermore, a connecting rod is fixedly connected between the two sliding rods near the left side of the support base, and two cross bars are symmetrically arranged above the support base, and both ends of the cross bars are fixedly connected to the sliding rods.

[0016] Through the above technical solution, the four sliding rods are connected and fixed together by using the cross rod and the connecting rod, so that when it is necessary to drive the sliding rods to move upward, the four sliding rods can be driven to move upward at the same time, avoiding the time wasted by operating one by one.

[0017] Furthermore, both ends of the bidirectional screw rod are rotatably connected to the inner wall of the cavity body 1 through bearings, and the bottom end surface of the supporting base plate is fixedly connected with an anti-slip rubber pad.

[0018] Through the above technical solution, the provision of the anti-skid rubber pad increases the friction between the device and the ground, making the placement of the device more stable.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. When the sliding rod is operated, the present application controls the motor to drive the rotating shaft to rotate, thereby driving the two bidirectional lead screws to rotate in the same direction. The rotation of the bidirectional lead screw drives the threaded sleeve inside the rectangular groove to move linearly. The movement of the threaded sleeve drives the limit block to move out of the limit groove, thereby releasing the limit on the sliding rod, and the sliding rod slides freely to the ground. Then the motor is controlled to rotate in the opposite direction, so that the threaded sleeves at both ends of the bidirectional lead screw move toward each other inside the two rectangular grooves and are inserted into the corresponding limit grooves, thereby completing the locking and fixing of the sliding rod. In summary, compared with the prior art, the present application adopts an electric drive, which saves a lot of time and improves work efficiency.

[0021] 2. The present application utilizes a cross bar and a connecting rod to connect and fix the four sliding rods together, so that when the sliding rods need to be driven to move upward, the four sliding rods can be driven to move upward at the same time, thus avoiding wasting time by operating one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of this application;

[0023] Figure 2 It is a partial structural diagram of this application;

[0024] Figure 3 This is a front cross-sectional view of the support base of this application.

[0025] Description of the numbers in the figure:

[0026] 1. Support base; 2. Rotating pull rod; 3. Fixed roller; 4. Concrete placing boom body; 5. Sliding rod; 6. Support bottom plate; 7. Limiting groove; 8. Connecting rod; 9. Sliding hole; 10. Bidirectional screw; 11. Bevel gear 1; 12. Bevel gear 2; 13. Slave gear; 14. Main gear; 15. Motor; 16. Groove; 17. Rotating rod; 18. Cavity body 1; 19. Cavity body 2; 20. Rectangular groove; 21. Threaded sleeve; 22. Limiting block; 23. Cross bar. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example

[0030] The present application embodiment discloses a locking mechanism for a concrete placing boom. Figure 1 , Figure 2 and Figure 3 , including a support base 1, a concrete placing machine body 4 arranged on the top of the support base 1, a fixed roller assembly 3 and a rotating roller assembly respectively fixedly connected to the left and right sides of the bottom of the support base 1, and a rotating pull rod 2 arranged on the right side of the top of the support base 1. The rotating pull rod 2, the rotating roller assembly, the fixed roller assembly 3 and the concrete placing machine body 4 of the present application are all prior arts, and their structure and working principle are all referred to a concrete placing machine disclosed in Publication (Announcement) No.: CN217975436U, which will not be described in detail herein;

[0031] The four corners of the support base 1 are provided with sliding holes 9, and a sliding rod 5 is slidably inserted inside the sliding hole 9. The bottom end of the sliding rod 5 is fixedly connected to a support base plate 6, and the bottom end surface of the support base plate 6 is fixedly connected to a non-slip rubber pad. The provision of the non-slip rubber pad increases the friction between the ground and makes the placement of the device more stable. A plurality of limiting grooves 7 are provided on the inner surface of the sliding rod 5, and the spacing between two adjacent limiting grooves 7 is equal. A hollow cavity body 19 is provided in the middle of the support base 1, and both ends of the hollow cavity body 19 are provided with a hollow cavity body 18 opened inside the support base 1, and the inner wall of the hollow cavity body 19 is provided with a driving component;

[0032] The driving assembly includes a groove 16 opened on the inner wall of the second cavity body 19, the inner wall of the groove 16 is fixedly connected with a motor 15, the motor 15 is powered by an external power supply, the output end of the motor 15 is fixedly connected with a rotating shaft, the outer side of the rotating shaft is fixedly sleeved with a main gear 14, the interior of the second cavity body 19 is rotatably connected with a rotating rod 17, the interior of the second cavity body 19 is fixedly connected with two mounting plates, the rotating rod 17 is rotatably connected to the middle of the two mounting plates, the outer side of the rotating rod 17 is fixedly sleeved with a slave gear 13, the main gear 14 and the slave gear 13 are meshingly connected, the interior of the first cavity body 18 is rotatably connected with a bidirectional screw rod 10, both ends of the bidirectional screw rod 10 are rotatably connected to the inner wall of the first cavity body 18 through bearings, and the bidirectional screw rod 10 and the rotating rod 17 are connected through a transmission assembly;

[0033] A rectangular groove 20 is provided on the inner wall of the sliding hole 9, and both ends of the bidirectional screw rod 10 extend to the inside of the rectangular groove 20. A matching threaded sleeve 21 is slidably connected inside the rectangular groove 20, and the threaded sleeve 21 is threadedly connected to the outside of the bidirectional screw rod 10. The control motor 15 drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the main gear 14 to rotate. The main gear 14 rotates to drive the slave gear 13 to rotate, and the slave gear 13 rotates to drive the rotating rod 17 to rotate. The rotation of the rotating rod 17 drives the two bevel gears 11 to rotate, and the rotation of the bevel gear 11 drives the bevel gear 2 12 to rotate, thereby driving the two bidirectional screw rods 10 to rotate in the same direction. The bidirectional screw rod 10 rotates to drive the threaded sleeve 21 inside the rectangular groove 20 to move linearly, and the movement of the threaded sleeve 21 drives the limit block 22 to move and insert into the corresponding limit groove 7, thereby completing the locking of the sliding rod 5. The surface of the threaded sleeve 21 is fixedly connected with a limit block 22 matched with the limit groove 7, and the limit block 22 extends to the inside of the limit groove 7.

[0034] See also Figure 2 The transmission assembly includes a bevel gear 11 and a bevel gear 12. The outer side of the bidirectional screw 10 is fixedly sleeved with the bevel gear 12. The outer sides of both ends of the rotating rod 17 are fixedly sleeved with the bevel gear 11. The bevel gear 11 and the bevel gear 12 are meshingly connected. The rotation of the bevel gear 11 can drive the bevel gear 12 to rotate, and the rotation of the bevel gear 12 can drive the bidirectional screw 10 to rotate.

[0035] See also Figure 1 A connecting rod 8 is fixedly connected between the two sliding rods 5 near the left side of the support base 1, and two cross bars 23 are symmetrically arranged above the support base 1. Both ends of the cross bars 23 are fixedly connected to the sliding rods 5. The four sliding rods 5 are connected and fixed together by using the cross bars 23 and the connecting rod 8, so that when it is necessary to drive the sliding rods 5 to move upward, the four sliding rods 5 can be driven to move upward at the same time, avoiding wasting time by operating one by one.

[0036] The implementation principle of the embodiment of the present application is: the control motor 15 drives the rotating shaft to rotate, the rotating shaft rotation drives the main gear 14 to rotate, the main gear 14 rotates to drive the slave gear 13 to rotate, the slave gear 13 rotates to drive the rotating rod 17 to rotate, the rotating rod 17 rotates to drive the two bevel gears 11 to rotate, the bevel gear 11 rotates to drive the bevel gear 2 12 to rotate, thereby driving the two bidirectional screw rods 10 to rotate in the same direction, the bidirectional screw rod 10 rotates to drive the threaded sleeve 21 inside the rectangular groove 20 to move linearly, the threaded sleeve 21 moves to drive the limit block 22 to move out of the limit groove 7, the limit on the sliding rod 5 is released, and the sliding rod 5 slides freely to the ground, and then the control motor 15 rotates in the opposite direction, so that the threaded sleeves 21 at both ends of the bidirectional screw rod 10 move toward each other in the two rectangular grooves 20 and are inserted into the corresponding limit grooves 7, thereby completing the locking and fixing of the sliding rod 5.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A locking mechanism for a concrete placing boom, comprising a support base (1), a concrete placing boom body (4) arranged on the top of the support base (1), a fixed roller assembly (3) and a rotating roller assembly respectively fixedly connected to the left and right sides of the bottom of the support base (1), and a rotating pull rod (2) arranged on the right side of the top of the support base (1), characterized in that: The four corners of the support base (1) are provided with sliding holes (9), the interior of the sliding holes (9) is slidably plugged with sliding rods (5), the bottom end of the sliding rod (5) is fixedly connected to the support base plate (6), the inner surface of the sliding rod (5) is provided with a plurality of limit grooves (7), the middle of the support base (1) is provided with a second cavity (19), both ends of the second cavity (19) are provided with a first cavity (18) opened inside the support base (1), the inner wall of the second cavity (19) is provided with a driving assembly, the interior of the second cavity (19) is rotatably connected with a rotating rod (17), the rotating rod (17) ) is fixedly sleeved with a slave gear (13) on the outside, the cavity body (18) is rotatably connected to a bidirectional screw rod (10) inside, the bidirectional screw rod (10) and the rotating rod (17) are connected via a transmission assembly, a rectangular groove (20) is provided on the inner wall of the sliding hole (9), both ends of the bidirectional screw rod (10) extend to the inside of the rectangular groove (20), a matching threaded sleeve (21) is slidably connected inside the rectangular groove (20), and the threaded sleeve (21) is threadedly connected to the outside of the bidirectional screw rod (10), and a limit block (22) matching the limit groove (7) is fixedly connected to the surface of the threaded sleeve (21).

2. The locking mechanism of a concrete placing boom according to claim 1, characterized in that: The driving assembly comprises a groove (16) formed on the inner wall of the second cavity body (19); a motor (15) is fixedly connected to the inner wall of the groove (16); a rotating shaft is fixedly connected to the output end of the motor (15); and a main gear (14) is fixedly sleeved on the outer side of the rotating shaft.

3. The locking mechanism of a concrete placing boom according to claim 2, characterized in that: The main gear (14) and the slave gear (13) are meshed and transmission-connected, two mounting plates are fixedly connected inside the second cavity (19), and the rotating rod (17) is rotationally connected to the middle of the two mounting plates.

4. The locking mechanism of a concrete placing boom according to claim 1, characterized in that: The transmission assembly comprises a bevel gear 1 (11) and a bevel gear 2 (12); the outer side of the bidirectional screw rod (10) is fixedly sleeved with the bevel gear 2 (12); the outer sides of both ends of the rotating rod (17) are fixedly sleeved with the bevel gear 1 (11); the bevel gear 1 (11) and the bevel gear 2 (12) are meshingly connected.

5. The locking mechanism of a concrete placing boom according to claim 1, characterized in that: The spacing between two adjacent limiting grooves (7) is equal, and the limiting block (22) extends into the interior of the limiting groove (7).

6. The locking mechanism of a concrete placing boom according to claim 1, characterized in that: A connecting rod (8) is fixedly connected between the two sliding rods (5) close to the left side of the support base (1), and two cross rods (23) are symmetrically arranged above the support base (1), with both ends of the cross rods (23) fixedly connected to the sliding rods (5).

7. The locking mechanism of a concrete placing boom according to claim 1, characterized in that: Both ends of the bidirectional screw rod (10) are rotatably connected to the inner wall of the first cavity body (18) via bearings, and a non-slip rubber pad is fixedly connected to the bottom end surface of the supporting base plate (6).

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