A mixer truck with external emergency brake structure

Abstract

The present invention discloses a mixer truck with an external emergency brake structure, and relates to the technical field of emergency brakes. The present invention includes a mixer truck body, and an emergency brake mechanism is arranged at the wheel hub of the mixer truck body; a mounting disc is rotatably mounted on the surface of the wheel hub of the mixer truck body, a mounting block is fixed on one side surface of the mounting disc, brake plates are rotatably mounted on both sides of the mounting block, and a brake cylinder is fixedly mounted on one side of the mounting disc close to the mounting block, and the brake cylinder can push the brake plates on both sides to rotate outwards, and when the brake system fails during driving, the driver can press the emergency brake button in the cab to control the start of the emergency brake mechanism, and push the brake plate and the wheel hub to perform friction braking through the push block, and can continue to be used as a backup emergency brake when the brake system fails, and can provide braking for the mixer truck in some special cases where it is inconvenient to stop for maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of emergency braking equipment, and in particular to a mixer truck with an external emergency braking structure. Background Art

[0002] As the name implies, a concrete mixer truck is used to mix concrete. The power mechanism drives the mixing shaft to mix water, sand and lime. The stirring blades rotate to drive the materials to rotate, thereby achieving uniform rotation of the materials and ultimately achieving the purpose of mixing. There are many types of concrete mixer trucks: large concrete transport mixer trucks, small concrete mixing devices that need to be moved, and medium-sized concrete mixer trucks.

[0003] The patent (application number: CN202011184031.9) discloses a mixer truck with reliable sealing, capable of reducing moisture loss of concrete during transportation, and ensuring the quality of concrete. The mixer truck includes a frame, on which a mixing drum is rotatably connected; a sealing assembly, including a sealing cover, which is used to open or close the inlet and outlet of the mixing drum; a feed hopper, which is used to input materials into the mixing drum through the inlet and outlet; a driving device, which is transmission-connected to the sealing cover and the feed hopper, and is used to drive the sealing cover and the feed hopper to move back and forth along the axial direction of the mixing drum, and to drive the sealing cover to flip relative to the mixing drum, so that the sealing cover switches back and forth between a first position and a second position. When the sealing cover is in the first position, the sealing cover is located between the mixing drum and the feed hopper; when the sealing cover is in the second position, the sealing cover is located on the side of the feed hopper away from the mixing drum.

[0004] This patent and the prior art have the following technical problems in actual use:

[0005] The braking system of a concrete mixer truck is often used during driving and transportation. It needs to frequently withstand pressure and tension during use. Repeated loading and unloading will cause elastic fatigue of the spring material used in the braking system, resulting in the emergency brake failing to work properly, affecting the braking effect and increasing the risk of accidents. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems and provide a mixer truck with an external emergency brake structure.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A mixer truck with an external emergency brake structure comprises a mixer truck body, wherein the wheel hub of the mixer truck body is provided with an emergency brake mechanism;

[0009] A mounting disc is rotatably mounted on the surface of the wheel hub of the mixer truck body, a mounting block is fixed on one side surface of the mounting disc, brake plates are rotatably mounted on both sides of the mounting block, a brake cylinder is fixedly mounted on one side of the mounting disc close to the mounting block, the brake cylinder can push the brake plates on both sides to rotate outward, a spring is fixedly mounted between the brake plates, the emergency brake mechanism includes a fixed plate fixedly mounted on one side of the mounting disc, a first fixed cylinder is fixedly mounted on one side of the fixed plate, a sliding plate is arranged inside the first fixed cylinder, a first sliding block is fixedly mounted on the surface of the sliding plate, and the first sliding block is Two groups are provided, a pushing block is provided below the first sliding block, a first connecting rod is rotatably connected between the pushing block and the first sliding block, two groups of the first connecting rod are provided, a linkage plate is provided above the sliding plate, second sliding blocks are fixedly installed on both sides of the linkage plate, a connecting block is provided below the second sliding block, a second connecting rod is rotatably connected between the connecting block and the second sliding block, a driving plate is provided above the sliding plate, a connecting spring is fixedly installed between the driving plate and the sliding plate, and a groove for sliding the first connecting rod and the second connecting rod is provided on the surface of the first fixed cylinder;

[0010] A clamping mechanism is arranged on one side of the brake plate, and a matching block is fixedly mounted on the top of the connecting block, and the matching block can be clamped with the clamping mechanism.

[0011] Furthermore, the engaging mechanism comprises a fixing block fixedly mounted on the surface of the brake plate, a sliding groove is provided on one side of the fixing block close to the connecting block, and adjustment blocks are fixedly connected to both sides of the fixing block.

[0012] Furthermore, a locking block is slidably installed inside the adjusting block, and an adjusting spring is fixedly installed between the locking block and the adjusting block.

[0013] Furthermore, an adjustment rod is fixedly mounted on one side of the engaging block close to the adjustment spring, and the adjustment rod penetrates and extends to the outside of the adjustment block.

[0014] Furthermore, a return spring is fixedly installed between the sliding plate and the fixed plate, and the length of the first connecting rod is set to be slightly shorter than that of the second connecting rod.

[0015] Furthermore, a connecting telescopic rod is fixedly installed on the top of the sliding plate, one end of the connecting telescopic rod is fixedly connected to the linkage plate, and there is a certain friction force between the second sliding block and the first fixed cylinder.

[0016] Furthermore, a second fixing tube is fixedly mounted on one side of the fixing plate close to the first fixing tube, and the first fixing tube is located inside the second fixing tube.

[0017] Furthermore, an electric telescopic rod is fixedly mounted on the top of the second fixed cylinder, and an output end of the electric telescopic rod is fixedly connected to the driving plate.

[0018] Furthermore, the first connecting rod and the second connecting rod are made of a material with a certain rigidity.

[0019] The beneficial effects of the present invention are as follows:

[0020] The present invention can, during driving, when the brake system fails, the driver can press the emergency brake button in the cab to control the activation of the emergency brake mechanism, and push the brake plate and the wheel hub to perform friction braking through the push block. When the brake system fails, the vehicle can continue to be used as a backup emergency brake, and can provide braking for the mixer truck in some special circumstances where it is inconvenient to stop for maintenance.

[0021] The present invention cooperates with the second connecting rod and the connecting block and the locking mechanism, and when the linkage plate is reset, the brake plate is pulled to rotate inward. When the spring in the braking system frequently bears pressure and tension, and repeated loading and unloading may cause elastic fatigue of the spring material used in the braking system, the brake plate will lose the restriction of the spring and thus rotate outward and contact the wheel hub, resulting in continuous braking. In the event of abnormal noise or vibration, the spring can be effectively replaced for continued use without the need for staff to stop immediately for maintenance, which greatly improves the efficiency of the mixer truck during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of a mixer truck of the present invention;

[0023] Figure 2 is a schematic diagram of the emergency brake mechanism of the present invention;

[0024] Figure 3 It is a schematic diagram of the interior of the first fixed cylinder of the present invention;

[0025] Figure 4 is a schematic diagram of a brake plate of the present invention;

[0026] Figure 5 The present invention Figure 3 Schematic diagram at A in the middle;

[0027] Figure 6 The present invention Figure 5 Schematic diagram at B in the middle;

[0028] Figure 7 It is a schematic diagram of the engaging mechanism of the present invention;

[0029] Figure 8 Schematic diagram of the first connecting rod of the present invention.

[0030] 1. Truck body; 2. Emergency brake mechanism; 201. Fixed plate; 202. First fixed cylinder; 203. Sliding plate; 204. First sliding block; 205. Pushing block; 206. First connecting rod; 207. Linkage plate; 208. Second sliding block; 209. Connecting block; 210. Second connecting rod; 211. Driving plate; 212. Connecting spring; 213. Slot; 3. Mounting plate; 4. Mounting block; 5. Brake plate; 6. Brake cylinder; 7. Engaging mechanism; 71. Fixed block; 72. Sliding groove; 73. Adjusting block; 74. Engaging block; 75. Adjusting spring; 76. Adjusting rod; 8. Matching block; 9. Return spring; 10. Connecting telescopic rod; 11. Second fixed cylinder; 12. Electric telescopic rod. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] A mixer truck with an external emergency brake structure according to a preferred embodiment of the present invention will be described in detail below.

[0033] Embodiment 1, as Figure 1-Figure 8 As shown, it includes a mixer truck body 1, and an emergency brake mechanism 2 is provided at the wheel hub of the mixer truck body 1;

[0034] A mounting disc 3 is rotatably mounted on the surface of the wheel hub of the mixer truck body 1, a mounting block 4 is fixed on one side surface of the mounting disc 3, brake plates 5 are rotatably mounted on both sides of the mounting block 4, a brake cylinder 6 is fixedly mounted on one side of the mounting disc 3 close to the mounting block 4, the brake cylinder 6 can push the brake plates 5 on both sides to rotate outward, a spring is fixedly mounted between the brake plates 5, and the emergency brake mechanism 2 includes a fixed plate 201 fixedly mounted on one side of the mounting disc 3, a first fixed cylinder 202 is fixedly mounted on one side of the fixed plate 201, a sliding plate 203 is arranged inside the first fixed cylinder 202, a first sliding block 204 is fixedly mounted on the surface of the sliding plate 203, and the first sliding block 204 is symmetrically arranged in two groups, and the lower part of the first sliding block 204 A pushing block 205 is provided, and a first connecting rod 206 is rotatably connected between the pushing block 205 and the first sliding block 204, and two groups of the first connecting rod 206 are provided. A linkage plate 207 is provided above the sliding plate 203, and second sliding blocks 208 are fixedly installed on both sides of the linkage plate 207. A connecting block 209 is provided below the second sliding block 208, and a second connecting rod 210 is rotatably connected between the connecting block 209 and the second sliding block 208. A driving plate 211 is provided above the sliding plate 203, and a connecting spring 212 is fixedly installed between the driving plate 211 and the sliding plate 203. A groove 213 for sliding of the first connecting rod 206 and the second connecting rod 210 is provided on the surface of the first fixed cylinder 202;

[0035] A clamping mechanism 7 is provided on one side of the brake plate 5, and a matching block 8 is fixedly installed on the top of the connecting block 209, and the matching block 8 can be clamped with the clamping mechanism 7;

[0036] During driving, when the brake system fails, the driver can press the emergency brake button in the cab to control the activation of the emergency brake mechanism 2. When the driving plate 211 inside the first fixed cylinder 202 moves downward, the driving plate 211 pushes the sliding plate 203 to move synchronously through the connecting spring 212, thereby driving the first sliding block 204 on the surface of the sliding plate 203 to move downward. At this time, when the first sliding block 204 moves downward, it drives the first connecting rod 206 to move synchronously through the slot 213, thereby driving the pushing block 205 to move downward. Since the side of the pushing block 205 that contacts the fixed plate 201 is set as an inclined surface, when the pushing block 205 continues to move downward, it contacts the fixed plate 201. , so that the first connecting rod 206 rotates inside the first sliding block 204, and according to the continuous downward movement of the sliding plate 203 and the restriction of the fixed plate 201, it is expanded outward, and at this time, the pushing block 205 contacts the brake plate 5, thereby pushing the brake plate 5 to rotate outward and contact the inner side of the wheel hub, thereby achieving an emergency braking effect. When the sliding plate 203 moves upward, through the restriction of the slot 213, when the first connecting rod 206 moves upward, it contacts the slot 213, so that the first connecting rod 206 rotates and recovers, and can continue to be used as a backup emergency brake when the braking system fails. In some special cases where it is not convenient to stop for maintenance, it can provide a braking effect for the mixer truck;

[0037] If the spring in the braking system is frequently subjected to pressure and tension, and repeated loading and unloading may cause elastic fatigue of the spring material used in the braking system, the brake plate 5 may lose the restriction of the spring and rotate outward to contact the wheel hub, resulting in continuous braking. In addition, when abnormal noise or vibration occurs, when the driving plate 211 continues to move downward, the sliding plate 203 may move to a position where it cannot move due to the push of the connecting spring 212. At this time, the driving plate 211 continues to move and squeezes the connecting spring 212, causing the connecting spring 212 to contract due to elastic potential energy. At the same time, the driving plate 211 contacts the linkage plate 207 and drives the linkage plate 207 to continue to move, so that the linkage plate 207 drives the second sliding block 20 8 moves, thereby making the second connecting rod 210 rotate and unfold. During the unfolding process, the matching block 8 on the top of the connecting block 209 engages with the locking mechanism 7. When the sliding plate 203 moves upward to reset, the sliding plate 203 can push the linkage plate 207 to move upward, thereby making the linkage plate 207 drive the brake plate 5 to rotate inward and reset through the locking block 74, which can effectively replace the spring and continue to be used without the need for staff to stop immediately for maintenance, greatly improving the efficiency of the mixer truck during transportation. Furthermore, the cab can be turned and can travel in both directions. Four spiral stirring blades are arranged in the tank body, which makes the stirring more uniform and the unloading smooth. The tank body can rotate 270° and the fan-shaped unloading makes the operation more efficient.

[0038] Embodiment 2, as Figure 7 As shown, the engaging mechanism 7 includes a fixed block 71 fixedly mounted on the surface of the brake plate 5, a sliding groove 72 is provided on one side of the fixed block 71 close to the connecting block 209, and adjustment blocks 73 are fixedly connected to both sides of the fixed block 71, a engaging block 74 is slidably mounted inside the adjustment block 73, and an adjustment spring 75 is fixedly mounted between the engaging block 74 and the adjustment block 73;

[0039] Through the setting of the fixed block 71, when the connecting block 209 and the matching block 8 move into the interior through the sliding groove 72, they contact the locking block 74. Since the surface of the locking block 74 is provided with an inclined surface, when contacting with the matching block 8, it will move outward due to the thrust to squeeze the adjustment spring 75. The adjustment spring 75 will shrink due to the elastic potential energy, thereby forming a reverse thrust force acting on the surface of the locking block 74. When the matching block 8 continues to move into the fixed block 71, the locking block 74 will be pushed out by the adjustment spring 75 due to the opening provided on the surface of the matching block 8, thereby fixing the matching block 8 and limiting the connecting block 209.

[0040] Embodiment three, as Figure 7 As shown, an adjustment rod 76 is fixedly mounted on one side of the locking block 74 close to the adjustment spring 75, and the adjustment rod 76 penetrates and extends to the outside of the adjustment block 73;

[0041] By setting the adjustment rod 76, when the staff is performing maintenance, the adjustment rod 76 can be pulled to drive the engaging block 74 to move, thereby releasing the restriction on the matching block 8, making it easier for the staff to disassemble and repair.

[0042] Embodiment 4, as Figure 1 As shown, a return spring 9 is fixedly installed between the sliding plate 203 and the fixed plate 201, and the length of the first connecting rod 206 is set to be slightly shorter than the second connecting rod 210;

[0043] The reset spring 9 can drive the sliding plate 203 to reset when not in use.

[0044] Embodiment 5, as Figure 1-Figure 5 As shown, the top of the sliding plate 203 is fixedly installed with a connecting telescopic rod 10, one end of the connecting telescopic rod 10 is fixedly connected to the linkage plate 207, and there is a certain friction between the second sliding block 208 and the first fixed cylinder 202;

[0045] By setting the connecting telescopic rod 10, when the sliding plate 203 moves downward, the connecting telescopic rod 10 can be extended, thereby not driving the linkage plate 207 to move. Only under the action of the driving plate 211 can the linkage plate 207 be pushed to move, which can effectively ensure that when the sliding plate 203 is working, the linkage plate 207 does not work.

[0046] Embodiment six, as Figure 1-Figure 5 As shown, a second fixed cylinder 11 is fixedly installed on one side of a fixed plate 201 close to a first fixed cylinder 202, the first fixed cylinder 202 is located inside the second fixed cylinder 11, an electric telescopic rod 12 is fixedly installed on the top of the second fixed cylinder 11, an output end of the electric telescopic rod 12 is fixedly connected to a driving plate 211, and a first connecting rod 206 and a second connecting rod 210 are made of a material with a certain rigidity;

[0047] The electric telescopic rod 12 can drive the driving plate 211 to move, thereby playing a role in overall transmission. At the same time, different effects can be achieved according to the extended distance of the electric telescopic rod 12.

[0048] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mixer truck with an external emergency brake structure, comprising a mixer truck body (1), characterized in that: An emergency brake mechanism (2) is provided at the wheel hub of the mixer truck body (1); A mounting plate (3) is rotatably mounted on the surface of the wheel hub of the mixer truck body (1), a mounting block (4) is fixed on one side of the mounting plate (3), brake plates (5) are rotatably mounted on both sides of the mounting block (4), a brake cylinder (6) is fixedly mounted on the side of the mounting plate (3) close to the mounting block (4), the brake cylinder (6) is capable of pushing the brake plates (5) on both sides to rotate outward, a spring is fixedly mounted between the brake plates (5), and the emergency brake mechanism (2) comprises a fixed plate (201) fixedly mounted on one side of the mounting plate (3), a first fixed cylinder (202) is fixedly mounted on one side of the fixing plate (201), a sliding plate (203) is arranged inside the first fixed cylinder (202), a first sliding block (204) is fixedly mounted on the surface of the sliding plate (203), two groups of the first sliding blocks (204) are symmetrically arranged, and the first sliding blocks (204) A pushing block (205) is arranged below the sliding plate (203), a first connecting rod (206) is rotatably connected between the pushing block (205) and the first sliding block (204), two groups of the first connecting rod (206) are arranged, a linkage plate (207) is arranged above the sliding plate (203), second sliding blocks (208) are fixedly installed on both sides of the linkage plate (207), a connecting block (209) is arranged below the second sliding block (208), a second connecting rod (210) is rotatably connected between the connecting block (209) and the second sliding block (208), a driving plate (211) is arranged above the sliding plate (203), a connecting spring (212) is fixedly installed between the driving plate (211) and the sliding plate (203), and a groove (213) for sliding of the first connecting rod (206) and the second connecting rod (210) is provided on the surface of the first fixed cylinder (202); A locking mechanism (7) is provided on one side of the brake plate (5), and a matching block (8) is fixedly mounted on the top of the connection block (209), and the matching block (8) can be locked with the locking mechanism (7).

2. A mixer truck with an external emergency brake structure according to claim 1, characterized in that: The engaging mechanism (7) comprises a fixed block (71) fixedly mounted on the surface of the brake plate (5), a sliding groove (72) being provided on a side of the fixed block (71) close to the connecting block (209), and adjustment blocks (73) being fixedly connected to both sides of the fixed block (71).

3. A mixer truck with an external emergency brake structure according to claim 2, characterized in that: A locking block (74) is slidably mounted inside the adjustment block (73), and an adjustment spring (75) is fixedly mounted between the locking block (74) and the adjustment block (73).

4. A mixer truck with an external emergency brake structure according to claim 3, characterized in that: An adjustment rod (76) is fixedly mounted on one side of the locking block (74) close to the adjustment spring (75), and the adjustment rod (76) penetrates and extends to the outside of the adjustment block (73).

5. A mixer truck with an external emergency brake structure according to claim 1, characterized in that: A return spring (9) is fixedly installed between the sliding plate (203) and the fixed plate (201), and the length of the first connecting rod (206) is set to be slightly shorter than that of the second connecting rod (210).

6. A mixer truck with an external emergency brake structure according to claim 1, characterized in that: A connecting telescopic rod (10) is fixedly mounted on the top of the sliding plate (203), one end of the connecting telescopic rod (10) is fixedly connected to the linkage plate (207), and a certain friction force exists between the second sliding block (208) and the first fixed cylinder (202).

7. A mixer truck with an external emergency brake structure according to claim 1, characterized in that: A second fixed cylinder (11) is fixedly mounted on one side of the fixed plate (201) close to the first fixed cylinder (202), and the first fixed cylinder (202) is located inside the second fixed cylinder (11).

8. A mixer truck with an external emergency brake structure according to claim 7, characterized in that: An electric telescopic rod (12) is fixedly mounted on the top of the second fixed cylinder (11), and an output end of the electric telescopic rod (12) is fixedly connected to the driving plate (211).

9. A mixer truck with an external emergency brake structure according to claim 1, characterized in that: The first connecting rod (206) and the second connecting rod (210) are made of a material having a certain rigidity.

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