Fastening device for concrete mixer

Abstract

The utility model discloses a fastening device for a concrete mixer truck, which comprises a base plate, one side of the base plate is provided with two through sliding chutes in a penetrating manner, the base plate is internally provided with two T-shaped sliding chutes, one sides of the two T-shaped sliding chutes are respectively communicated with one sides of the two through sliding chutes in a penetrating manner, and the other sides of the two T-shaped sliding chutes are communicated with the other sides of the two through sliding chutes in a penetrating manner. The interior of the base plate is rotationally connected with a two-way threaded rod, and the outer surface of the two-way threaded rod is in threaded connection with two T-shaped sliding blocks. By pulling the hexagonal limiting ring, the hexagonal limiting ring slides out of the fixing ring, limitation of the hexagonal connecting rod is relieved, the hexagonal connecting rod is rotated, the bidirectional threaded rod is made to rotate, the two T-shaped sliding blocks are made to get close to or get away from each other while the bidirectional threaded rod is rotated, and therefore the distance between the two surrounding rods is adjusted; the funnel fastening device is simple in structure and convenient to operate, and the practicability of the funnel fastening device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening devices for concrete mixer trucks, in particular to a fastening device for concrete mixer trucks. Background Art

[0002] A concrete mixer truck, also known as a concrete truck or a concrete mixer transport truck, is a truck specially designed to transport construction concrete. However, a fastening device is used in the production of a concrete mixer truck to ensure that the various parts of the vehicle are firmly connected to prevent loosening and falling off. The fastening device of a concrete mixer transport truck includes a funnel locking device, a rotary locking device, etc. There are various fastening devices, each of which has a function.

[0003] In the prior art, for example, Chinese patent CN217257286U discloses a hopper locking device for a concrete mixer truck, which comprises a base, one side of which is fixedly arranged at the feed port of the mixing tank of the concrete mixer truck, and driving cylinders are symmetrically arranged on both sides of the upper part of the base, the telescopic end of the driving cylinder penetrates into the base and the rear end is connected to a locking rod, one end of the locking rod vertically penetrates the base, and the other end of the locking rod is bent to one side to form a surrounding part, and a feeding hole is also arranged at the lower part of the base, and the upper part of the feeding hole is a planar structure.

[0004] In the above patent, although the funnels of different sizes can be fixed and the feeding efficiency of the concrete mixer truck can be improved through the structural design of the base, driving cylinder, locking rod and surrounding part, when using the driving cylinder, the power supply and control device are required to adjust the locking rod, which makes the installation more complicated. Moreover, the structure is exposed to the outside for a long time. After long-term use, the driving cylinder needs to be repaired frequently, which makes it inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a fastening device for a concrete mixer truck to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fastening device for a concrete mixer truck, comprising a base plate, one side of the base plate is penetrated by two through slide grooves, the interior of the base plate is provided with two T-shaped slide grooves, one side of the two T-shaped slide grooves is respectively penetrated and connected with one side of the two through slide grooves, a bidirectional threaded rod is rotatably connected inside the base plate, the outer surface of the bidirectional threaded rod is threadedly connected with two T-shaped sliders, the outer side walls of the two T-shaped sliders are respectively slidably connected with the inner walls of the two T-shaped slide grooves, one side of the two T-shaped sliders are fixedly connected with a locking rod, and one end of the two locking rods are threadedly connected with a surrounding rod.

[0007] As a further preferred embodiment of the present technical solution, two fixed slide grooves are provided at the upper end of the base plate, one side of the two fixed slide grooves are respectively connected with the other side of the two through slide grooves, the upper ends of the two T-shaped slide blocks are threadedly connected with fixed threaded rods, and one end of the two fixed threaded rods are fixedly connected to a limiting frame.

[0008] As a further preferred embodiment of the present technical solution, four support frames are fixedly connected to the other side of the base plate, and a plurality of mounting holes are formed through one side of the four support frames.

[0009] As a further preferred embodiment of the present technical solution, a feed hole is penetrated through the middle of one side of the substrate.

[0010] As a further preferred embodiment of the present technical solution, one end of the bidirectional threaded rod is fixedly connected to a hexagonal connecting rod, the outer surface of the hexagonal connecting rod is slidably connected to a hexagonal limiting ring, one side of the hexagonal limiting ring is slidably clamped with a fixing ring, and one side of the fixing ring is fixedly connected to one side of the substrate.

[0011] As a further preferred embodiment of the present technical solution, a plurality of fixing holes are formed through the outer surface of the hexagonal limiting ring, one side of the outer surface of the fixing ring is fixedly connected to a mounting tube, an insertion rod is slidably connected to the inner wall of the mounting tube, a reset spring is fixedly connected to the outer surface of the insertion rod, one end of the reset spring is fixedly connected to the inner wall of the mounting tube, one end of the insertion rod is rotatably connected to a rotating handle, the outer surface of the rotating handle is rotatably connected to the upper end of the mounting tube, and the other end of the insertion rod is clamped with the inner wall of any one of the fixing holes.

[0012] The utility model provides a fastening device for a concrete mixer truck, which has the following beneficial effects:

[0013] The utility model pulls the hexagonal limiting ring to slide out of the fixing ring, thereby releasing the restriction of the hexagonal connecting rod, and rotating the hexagonal connecting rod to rotate the bidirectional threaded rod. When the bidirectional threaded rod rotates, the two T-shaped sliding blocks are moved closer to or farther away from each other, thereby adjusting the distance between the two surrounding rods and fixing funnels of different sizes. The utility model has a simple structure and is easy to operate, thereby improving the practicality of the funnel fastening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the substrate in the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the bidirectional threaded rod and the T-shaped slider in the utility model;

[0017] Figure 4 It is an exploded schematic diagram of the bidirectional threaded rod and the fixing ring in the utility model;

[0018] In the figure: 1. Base plate; 2. Through slide groove; 3. Fixed slide groove; 4. Locking rod; 5. Surrounding rod; 6. Bidirectional threaded rod; 7. T-shaped slider; 8. T-shaped slide groove; 9. Fixed ring; 10. Support frame; 11. Mounting hole; 12. Hexagonal connecting rod; 13. Feeding hole; 14. Limiting frame; 15. Fixed threaded rod; 16. Hexagonal limiting ring; 17. Fixed hole; 18. Mounting cylinder; 19. Insertion rod; 20. Reset spring; 21. Turning handle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figure 1-Figure 4 As shown, in the present embodiment, a fastening device for a concrete mixer truck comprises a base plate 1, one side of the base plate 1 is penetrated by two through slide grooves 2, the interior of the base plate 1 is provided with two T-shaped slide grooves 8, one side of the two T-shaped slide grooves 8 is respectively penetrated and communicated with one side of the two through slide grooves 2, a bidirectional threaded rod 6 is rotatably connected inside the base plate 1, the outer surface of the bidirectional threaded rod 6 is threadedly connected with two T-shaped sliding blocks 7, the outer side walls of the two T-shaped sliding blocks 7 are respectively slidably connected with the inner walls of the two T-shaped slide grooves 8, one side of the two T-shaped sliding blocks 7 are fixedly connected with a locking rod 4, one end of the two locking rods 4 are threadedly connected with a surrounding rod 5, the bidirectional threaded rod 6 is rotated by rotating the hexagonal connecting rod 12, and when the bidirectional threaded rod 6 rotates, the two T-shaped sliding blocks 7 are moved closer to and away from each other, thereby adjusting the distance between the two surrounding rods 5, and fixing funnels of different sizes. This structure is simple and easy to operate, and the practicality of the funnel fastening device is improved.

[0021] like Figure 1-Figure 3 As shown, two fixed slide grooves 3 are provided at the upper end of the base plate 1, and one side of the two fixed slide grooves 3 is respectively connected with the other side of the two through slide grooves 2, and the upper ends of the two T-shaped sliders 7 are threadedly connected with fixed threaded rods 15, and one end of the two fixed threaded rods 15 is fixedly connected with a limiting frame 14. By rotating the two limiting frames 14, the two fixed threaded rods 15 are respectively moved in the T-shaped slider 7, and the lower end of the limiting frame 14 is clamped with the upper end of the base plate 1 to fix the T-shaped slider 7.

[0022] like Figure 1 and Figure 2As shown, four support frames 10 are fixedly connected to the other side of the base plate 1 , and a plurality of mounting holes 11 are formed through one side of the four support frames 10 . The base plate 1 can be fixedly mounted on the concrete mixer truck through the plurality of mounting holes 11 .

[0023] like Figure 1 and Figure 2 As shown, a feed hole 13 is formed through the middle of one side of the base plate 1, and the feed hole 13 facilitates the output end of the concrete feed hopper to enter the mixer truck.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, one end of the bidirectional threaded rod 6 is fixedly connected to a hexagonal connecting rod 12, and the outer surface of the hexagonal connecting rod 12 is slidably connected to a hexagonal limiting ring 16, one side of the hexagonal limiting ring 16 is slidably clamped with a fixing ring 9, and one side of the fixing ring 9 is fixedly connected to one side of the base plate 1. By pushing the hexagonal limiting ring 16, one side of the hexagonal limiting ring 16 is inserted into the fixing ring 9 and slides out, the hexagonal connecting rod 12 is fixed to prevent the hexagonal connecting rod 12 from rotating.

[0025] like Figure 3 and Figure 4 As shown, the outer surface of the hexagonal limit ring 16 is penetrated with a plurality of fixing holes 17, one side of the outer surface of the fixing ring 9 is fixedly connected with a mounting tube 18, the inner wall of the mounting tube 18 is slidably connected with a plug rod 19, the outer surface of the plug rod 19 is fixedly connected with a reset spring 20, one end of the reset spring 20 is fixedly connected to the inner wall of the mounting tube 18, one end of the plug rod 19 is rotatably connected with a rotating handle 21, the outer surface of the rotating handle 21 is rotatably connected to the upper end of the mounting tube 18, and the other end of the plug rod 19 is clamped with the inner wall of any fixing hole 17, through By turning the rotating handle 21, the insertion rod 19 slides in the installation tube 18, and the reaction force of the return spring 20 pushes the insertion rod 19 downward, so that one end of the insertion rod 19 is inserted into any one of the fixing holes 17, limiting the hexagonal limit ring 16 to prevent the hexagonal limit ring 16 from being moved out of the fixing ring 9 due to road bumps when the mixer truck is driving. When the rotating handle 21 is in a horizontal state, the return spring 20 pushes the insertion rod 19 downward, and when the rotating handle 21 is in a vertical state, the insertion rod 19 slides out of the fixing hole 17 into the installation tube 18.

[0026] The utility model provides a fastening device for a concrete mixer truck, and the specific working principle is as follows:

[0027] First, the staff fixes the support frame 10 of the base plate 1 at the feed port of the concrete mixer truck, inserts the discharge port of the funnel into the feed hole 13, turns the rotating handle 21, slides the insertion rod 19 out of the fixing hole 17, pulls the hexagonal limit ring 16, slides the hexagonal limit ring 16 out of the fixing ring 9, releases the restriction of the hexagonal connecting rod 12, rotates the two limit frames 14, releases the restriction of the T-shaped slider 7, and then rotates the hexagonal connecting rod 12 to rotate the bidirectional threaded rod 6. While the bidirectional threaded rod 6 rotates, the two T-shaped sliders 7 move closer to and away from each other, adjust the distance between the two surrounding rods 5, support one side of the outer surface of the funnel with the two surrounding rods 5, and then rotates the limit frame 14 in the opposite direction to fix the T-shaped slider 7, push the hexagonal limit ring 16, and insert the hexagonal limit ring 16 into the fixing ring 9, thereby completing the installation.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fastening device for a concrete mixer truck, comprising a base plate (1), characterized in that: Two through-slide grooves (2) are formed on one side of the base plate (1), and two T-shaped slide grooves (8) are formed inside the base plate (1). One side of the two T-shaped slide grooves (8) is connected to one side of the two through-slide grooves (2). A bidirectional threaded rod (6) is rotatably connected inside the base plate (1), and two T-shaped sliders (7) are threadedly connected to the outer surface of the bidirectional threaded rod (6). The outer side walls of the two T-shaped sliders (7) are slidably connected to the inner walls of the two T-shaped slide grooves (8). One side of the two T-shaped sliders (7) is fixedly connected to a locking rod (4), and one end of the two locking rods (4) is threadedly connected to a surrounding rod (5).

2. A fastening device for a concrete mixer truck according to claim 1, characterized in that: Two fixed slide grooves (3) are provided at the upper end of the base plate (1), one side of the two fixed slide grooves (3) is respectively connected to the other side of the two through slide grooves (2), the upper ends of the two T-shaped slide blocks (7) are both threadedly connected to fixed threaded rods (15), and one end of the two fixed threaded rods (15) is fixedly connected to a limiting frame (14).

3. A fastening device for a concrete mixer truck according to claim 1, characterized in that: Four support frames (10) are fixedly connected to the other side of the base plate (1), and a plurality of mounting holes (11) are provided through one side of the four support frames (10).

4. A fastening device for a concrete mixer truck according to claim 1, characterized in that: A feed hole (13) is formed through the middle of one side of the substrate (1).

5. The fastening device for a concrete mixer truck according to claim 1, characterized in that: One end of the bidirectional threaded rod (6) is fixedly connected to a hexagonal connecting rod (12), the outer surface of the hexagonal connecting rod (12) is slidably connected to a hexagonal limiting ring (16), one side of the hexagonal limiting ring (16) is slidably engaged with a fixing ring (9), and one side of the fixing ring (9) is fixedly connected to one side of the base plate (1).

6. A fastening device for a concrete mixer truck according to claim 5, characterized in that: The outer surface of the hexagonal limiting ring (16) is penetrated by a plurality of fixing holes (17); one side of the outer surface of the fixing ring (9) is fixedly connected to a mounting tube (18); an insert rod (19) is slidably connected to the inner wall of the mounting tube (18); a return spring (20) is fixedly connected to the outer surface of the insert rod (19); one end of the return spring (20) is fixedly connected to the inner wall of the mounting tube (18); one end of the insert rod (19) is rotatably connected to a rotating handle (21); the outer surface of the rotating handle (21) is rotatably connected to the upper end of the mounting tube (18); the other end of the insert rod (19) is clamped to the inner wall of any of the fixing holes (17).

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