Mixer truck and rear step ladder operation platform

Abstract

The utility model discloses a mixer truck and a rear step ladder operation platform, relates to the technical field of operation machinery accessories, and aims to solve the problem of low safety of the rear step ladder operation platform of the mixer truck, the rear step ladder operation platform comprises an operation platform, and the operation platform is fixed on the mixer truck. An opening type inlet and a three-face protection structure are arranged in the circumferential direction of the operation platform, so that an operator can enter the operation platform from the inlet and wash the inside and the outside of a tank body of the mixer truck on the operation platform, and the protective fence falling rod device is arranged at the inlet in an openable and closable mode so as to open and close the operation platform. The protective fence falling rod device is in a normally-closed state, so that the operation platform is protected from four sides, the safety of the operation personnel working on the operation platform is improved, the step ladder is arranged at the entrance and located at the bottom of the operation platform, and the step ladder extends in the height direction of the mixer truck and is fixed to the mixer truck. Therefore, an operator can climb on the operation platform through the step ladder.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery accessories, and more specifically to a mixer truck and a rear step ladder operating platform. Background Art

[0002] A mixer truck is a special truck used to transport concrete. Due to its appearance, it is often called a snail truck or an olive truck. This type of truck is equipped with a cylindrical mixing drum to carry the mixed concrete. Since the product transported by the mixer truck is concrete, which is characterized by automatic solidification within a certain period of time, a step ladder and an operating platform must be installed at the rear of the mixer truck to facilitate personnel to stand and operate the flushing water gun to promptly flush the remaining concrete inside the tank.

[0003] The existing rear step ladder operating platform of the mixer truck has no safety guardrail at the entrance to the platform. The operating platform has a small space and is used frequently. After each transportation, the tank body must be flushed on the platform. Due to the splashing of flushing water, especially in winter, it is easy to freeze on the operating platform, causing the operator's feet to slip and stand unsteadily. Since it is high from the ground and there are various components around the vehicle, and it is generally located on the construction site, if a person falls and slides, it is easy to cause a safety accident in which the person is injured. When the operator goes up and down the ladder, there are only handrails on both sides of the ladder, and there is no slide rail for safety ropes. Without the protection of the safety rope, if a person falls, it is easy to cause a safety accident. Especially for drivers who are new to mixing transportation, they lack experience and are more likely to cause safety accidents, which seriously affects their satisfaction with the use of the vehicle and the safe production of the construction site.

[0004] Therefore, how to solve the problem that the rear step ladder operating platform of the mixer truck is not safe is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a rear step ladder operating platform, by arranging a guardrail drop rod device at the open entrance of the operating platform, so that the operating platform is protected on four sides from the original three sides, so as to improve the safety of the rear step ladder operating platform.

[0006] Another object of the utility model is to provide a mixer truck comprising the above-mentioned rear step ladder operating platform, so as to improve the safety of the operator when flushing the inside and outside of the tank body.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A rear step ladder operating platform, comprising:

[0009] The operating platform is fixed on the mixer truck, and an open entrance and three-sided protective structure are provided around the operating platform;

[0010] The guardrail drop bar device is switchable and installed at the entrance. The guardrail drop bar device is in the normally closed state, so that the operating platform is protected on all sides;

[0011] The step ladder is arranged at the entrance and located at the bottom of the operating platform. The step ladder extends along the height direction of the mixer truck and is fixed to the mixer truck.

[0012] Preferably, the guardrail drop bar device comprises:

[0013] There shall be at least two railings, at least two of which shall be arranged parallel to the operating platform and the railings which can be switched shall be arranged at the entrance;

[0014] Connecting rod, used to connect two adjacent railings.

[0015] Preferably, a fixing seat for articulating the railing is provided on the mixer truck, and one end of the railing is connected to the fixing seat by bolts.

[0016] Preferably, a gantry fixed to the mixer truck is provided on one side of the operating platform, an entrance is provided on the other side of the operating platform and close to the gantry, and guardrail structures are provided on the other two sides of the operating platform, which cooperate with the gantry to provide three-sided protection for the operating platform.

[0017] Preferably, a card slot is provided on the guardrail structure near the entrance, and the card slot is arranged corresponding to the fixing seat, so that the other end of the guardrail is fixed by card connection through the card slot.

[0018] Preferably, the slot is an elastic member and has a U-shaped structure, one side of the slot is fixed to the guardrail structure, and the other side of the slot has a protrusion extending inwardly.

[0019] Preferably, a magnet for sucking one end of the railing is provided on the hopper of the mixer truck.

[0020] Preferably, the step ladder includes a first side tube and a second side tube that are arranged opposite to each other, and a plurality of pedals arranged between the first side tube and the second side tube, the first side tube is arranged close to the mixer truck, and the second side tube is arranged far away from the mixer truck.

[0021] Preferably, a guardrail slide rail is provided on the second side tube, and a slider which is movably arranged along the guardrail slide rail is provided on the guardrail slide rail. The slider can be fixed at any position of the guardrail slide rail, and the slider is connected to a safety rope.

[0022] A mixer truck comprises the rear step ladder operating platform described in any one of the above.

[0023] The rear step ladder operating platform provided by the utility model comprises an operating platform, a guardrail rod-dropping device and a step ladder. Specifically, the operating platform is fixed to the mixer truck, and an open entrance and a three-sided protective structure are arranged in the circumference of the operating platform, so that the operator can enter the operating platform from the entrance and wash the inside and outside of the tank body of the mixer truck on the operating platform. The guardrail rod-dropping device can be switched and arranged at the entrance to open and close the operating platform, so that the operator can enter and exit the operating platform. The guardrail rod-dropping device is in a normally closed state, so that the operating platform is protected on all sides, thereby improving the safety of the operator when working on the operating platform. The step ladder is arranged at the entrance and is located at the bottom of the operating platform. The step ladder extends along the height direction of the mixer truck and is fixed to the mixer truck, so that the operator can climb onto the operating platform through the step ladder.

[0024] When the operator needs to operate on the operating platform, he goes up to the entrance of the operating platform through the step ladder, opens the normally closed guardrail drop-down device, goes up to the operating platform through the entrance, and then closes the guardrail drop-down device to ensure the personal safety of the operator on the operating platform. When the operator finishes cleaning the tank body of the mixer truck, he opens the closed guardrail drop-down device, goes out from the entrance, and returns to the ground along the step ladder.

[0025] The rear step ladder operating platform arranged in the above manner has a guardrail drop rod device arranged at the open entrance of the operating platform, so that the operating platform forms all-round protection on all four sides, thereby improving the safety of the rear step ladder operating platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of the rear step ladder operating platform provided by the utility model;

[0028] Figure 2 A partial enlarged view of the rear step ladder operating platform provided by the utility model;

[0029] Figure 3 A schematic diagram of the structure of the guardrail drop rod device provided by the utility model;

[0030] Figure 4 A schematic diagram of the structure of the card slot provided by the utility model;

[0031] Figure 5 A schematic diagram of the structure of the step ladder provided by the utility model;

[0032] Figure 6 This is a schematic structural diagram of the guardrail drop rod device provided by the utility model when it is opened.

[0033] Reference numerals:

[0034] 1-Operation platform;

[0035] 2-guardrail drop bar device, 21-rail, 22-connecting rod, 23-fixed seat;

[0036] 3-step ladder, 31-first side pipe, 32-second side pipe, 33-pedal;

[0037] 4-Gantry;

[0038] 5-Guardrail structure;

[0039] 6-Card slot;

[0040] 7-Guardrail slide rail. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that the directional words such as "upper" and "lower" mentioned below are defined based on the drawings in the specification.

[0043] The core of the utility model is to provide a rear step ladder operating platform. By arranging a guardrail drop rod device 2 at the open entrance of the operating platform 1, the operating platform 1 is protected on four sides instead of the original three sides, so as to improve the safety of the rear step ladder operating platform.

[0044] Another core of the utility model is to provide a mixer truck including the above-mentioned rear step ladder operating platform to improve the safety of operators when flushing the inside and outside of the tank body.

[0045] Please refer to Figure 1 A rear step ladder operating platform comprises an operating platform 1, a guardrail drop rod device 2 and a step ladder 3.

[0046] Specifically, the operating platform 1 is fixed to the mixer truck, and an open entrance and a three-sided protective structure are provided around the operating platform 1 so that the operator can enter the operating platform 1 from the entrance and flush the inside and outside of the tank of the mixer truck on the operating platform 1. The guardrail drop rod device 2 can be switched at the entrance to open and close the operating platform 1, so that the operator can enter and exit the operating platform 1. The guardrail drop rod device 2 is in a normally closed state so that the operating platform 1 is protected on all four sides, thereby improving the safety of the operator when working on the operating platform 1. The step ladder 3 is provided at the entrance and is located at the bottom of the operating platform 1. The step ladder 3 extends along the height direction of the mixer truck and is fixed to the mixer truck so that the operator can climb onto the operating platform 1 through the step ladder 3.

[0047] When the operator needs to operate on the operating platform 1, he goes up to the entrance of the operating platform 1 through the step ladder 3, opens the normally closed guardrail rod-dropping device 2, goes up to the operating platform 1 through the entrance, and then closes the guardrail rod-dropping device 2 to ensure the personal safety of the operator on the operating platform 1. When the operator finishes cleaning the tank body of the mixer truck, he opens the closed guardrail rod-dropping device 2, goes out from the entrance, and returns to the ground along the step ladder 3.

[0048] The exit and the entrance of the operating platform 1 are one opening.

[0049] The rear step ladder operating platform arranged in the above manner has a guardrail drop rod device 2 arranged at the open entrance of the operating platform 1, so that the operating platform 1 forms all-round four-sided protection to improve the safety of the rear step ladder operating platform.

[0050] Please refer to Figure 2 and Figure 3 The guardrail drop device 2 includes a railing 21 and a connecting rod 22. There are at least two railings 21. At least two railings 21 are arranged parallel to the operating platform 1, and the railing 21 can be opened and closed at the entrance. The connecting rod 22 is used to connect two adjacent railings 21.

[0051] It should be noted that the railing 21 may be installed at the entrance of the operating platform 1. Two or more railings 21 may be provided to reduce the gap between two adjacent railings 21, thereby ensuring that the operator does not slip out of the gap and ensuring the personal safety of the operator. Two adjacent railings 21 are connected by a connecting rod 22 so that at least two railings 21 can be connected into an integral structure. By opening or closing the railing 21, the entrance of the operating platform 1 can be opened or closed.

[0052] In one embodiment, one end of the railing 21 is rotatably provided on the mixer truck, and the other end of the railing 21 is pushed inward to open the entrance. When the operator enters the operating platform 1, the railing 21 is pushed outward to close the entrance; alternatively, the other end of the railing 21 is pulled outward to open the entrance. When the operator enters the operating platform 1, the railing 21 is pulled inward to close the entrance.

[0053] In another embodiment, one end of the railing 21 is rotatably provided on the mixer truck, and the other end of the railing 21 is pulled upward to open the entrance. When the operator enters the operating platform 1, the railing 21 is moved downward to close the entrance.

[0054] In the above situation, a fixing seat 23 for hingedly connecting the handrail 21 is provided on the mixer truck, and one end of the handrail 21 is connected to the fixing seat 23 by bolts.

[0055] It is understandable that one end of the handrail 21 is connected to the attachment of the mixer truck through a hinge, and the other end of the handrail 21 can be freely rotated up and down under the action of external force. In practical applications, there is no restriction on the connection method between the handrail 21 and the mixer truck, as long as the above technical effect can be achieved.

[0056] In this embodiment, the fixing seat 23 is groove-shaped and welded to the vehicle accessory. The railing 21 is connected to the fixing seat 23 by bolts to form a movable hinge. The two railings 21 are linked by a connecting rod 22 and a spiral.

[0057] Among them, the railing 21 can be a square rod or a round rod, and the end of the railing 21 connected to the fixed seat 23 is provided with a rounded corner to avoid interference between the railing 21 and the fixed seat 23 during rotation. A gap can also be left between the end of the railing 21 and the base of the fixed seat 23 to avoid interference between the railing 21 and the fixed seat 23 during rotation. In actual application, there is no restriction on the shape of the railing 21 as long as the above-mentioned technical effect can be achieved.

[0058] Furthermore, a gantry 4 fixed to the mixer truck is provided on one side of the operating platform 1, an entrance is provided on the other side of the operating platform 1 and is arranged close to the gantry 4, and guardrail structures 5 are provided on the other two sides of the operating platform 1. The guardrail structure 5 cooperates with the gantry 4 to provide three-sided protection for the operating platform 1.

[0059] It should be noted that, in this embodiment, the gantry 4 fixed on the mixer truck serves as a safety guardrail on one side of the operating platform 1, and a guardrail structure 5 is installed on the other two sides of the operating platform 1 so that the operating platform 1 has safety guardrails on three sides, and a guardrail dropping device 2 is set at the entrance so that the operating platform 1 has safety guardrails on all four sides, thereby improving the safety of operators operating on the operating platform 1.

[0060] Please refer to Figure 2 , Figure 3 and Figure 4 A card slot 6 is provided on the guardrail structure 5 near the entrance, and the card slot 6 is arranged corresponding to the fixing seat 23 so that the other end of the railing 21 is fixed by the card slot 6.

[0061] It is understandable that when the operator needs to board the operating platform 1, the movable end of the railing 21 is pulled upward to open the entrance. Figure 6 As shown, when the operator enters the operating platform 1, due to the gravity of the railing 21, the operator drops the railing 21, so that the movable end of the railing 21 falls into the slot 6, thereby fixing the railing 21 and closing the entrance to prevent the operator from slipping or falling off the vehicle, thereby preventing accidents.

[0062] Among them, the two normal states are within the limits of the card slot 6 and cannot be opened. Only when the operator enters and exits, the railing 21 is manually lifted, and the operator can enter and exit the card slot 6 and self-lock, so as to effectively prevent the vehicle from shaking and vibrating to generate noise.

[0063] On the basis of the above embodiment, the slot 6 is an elastic member and has a U-shaped structure. One side of the slot 6 is fixed to the guardrail structure 5 , and the other side of the slot 6 has a protrusion extending inward.

[0064] It should be noted that the slot 6 is groove-shaped, welded to the guardrail structure 5, and opens upward. The railing 21 can only be lifted upward manually to open the entrance to allow operators to enter and exit. The railing 21 naturally falls into the slot 6 under the action of gravity to prevent the operator from forgetting to close the railing 21 due to negligence, thereby ensuring the safety and effectiveness of the protection system.

[0065] In addition, in order to prevent the guardrail 21 from jumping due to vehicle bumps, the slot 6 is a self-locking structure. One side of the slot 6 is convex inward, so that the gap between the upper and lower channels is slightly smaller than the width of the guardrail 21. After the guardrail 21 falls naturally, the guardrail 21 is pressed down with force to increase the gap in the slot 6 so that the guardrail 21 can pass smoothly. Then the slot 6 uses its own elastic locking effect to lock the guardrail 21 to prevent the guardrail 21 from jumping due to vehicle bumps.

[0066] Among them, the movable end of the railing 21 can be fixed by other fixing parts, and there is no limitation on the structure, shape, size, etc. of the slot 6, as long as the above-mentioned technical effect can be achieved.

[0067] In the above embodiment, a magnet for sucking one end of the railing 21 is provided on the hopper of the mixer truck.

[0068] It is understandable that when the operator lifts the railing 21 upward, the movable end of the railing 21 is sucked by the magnet, so that the operator can smoothly enter the operating platform 1 from the entrance, and it can also avoid unsafe factors caused by the operator having to hold the railing 21 all the time.

[0069] In one embodiment, corresponding sensors, controllers and drive structures can be set for the opening and closing of the railing 21 to achieve automatic opening and closing of the railing 21 and self-locking of the railing 21. There is no restriction on the automation setting method of the railing 21, as long as the above-mentioned technical effect can be achieved.

[0070] Please refer to Figure 5 The step ladder 3 includes a first side tube 31 and a second side tube 32 that are arranged opposite to each other, and a plurality of pedals 33 arranged between the first side tube 31 and the second side tube 32. The first side tube 31 is arranged close to the mixer truck, and the second side tube 32 is arranged far away from the mixer truck.

[0071] It should be noted that when the operator needs to flush the tank of the mixer truck, he needs to climb onto the operating platform 1 through the pedal 33. In actual applications, other methods can also be used to climb onto the operating platform 1. There is no limitation to this as long as the above-mentioned technical effects can be achieved.

[0072] The first side tube 31 and the second side tube 32 are arranged at an angle with the ground, so that the step ladder 3 composed of the first side tube 31, the second side tube 32 and the pedal 33 has a certain inclination, so that the operator can smoothly board the operating platform 1. In actual application, there is no restriction on the specific angle between the first side tube 31, the second side tube 32 and the ground, which can be determined according to actual conditions.

[0073] In the above situation, a guardrail slide rail 7 is provided on the second side tube 32, and a slider movable along the guardrail slide rail 7 is provided on the guardrail slide rail 7. The slider can be fixed at any position of the guardrail slide rail 7, and the slider is connected to the safety rope.

[0074] It is understandable that when the operator goes up and down the operating platform 1, he first ties the safety rope around the operator, and then climbs onto the operating platform 1 through the pedal 33. The slider of the safety rope can be tied to any position on the guardrail slide rail 7 to prevent the operator from directly sliding and falling to the ground in the event of an accident, thereby ensuring the personal safety of the operator.

[0075] In summary, the rear-step ladder operating platform provided by the utility model is manufactured through profiles and simple processing to form a normal automatic drop-bar safety protection system with high safety. On the basis of the original operating platform 1, a guardrail drop-bar device 2 is added to make the operating platform 1 protected on three sides instead of the original to form all-round four-sided protection, so as to improve the safety of the operator during operation.

[0076] In addition to the rear step ladder operating platform disclosed in the above-mentioned embodiments, the utility model also provides a mixer truck including the above-mentioned rear step ladder operating platform. For the structures of other parts of the mixer truck, please refer to the prior art and will not be described in detail herein.

[0077] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0078] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0079] The above is a detailed introduction to a mixer truck and a rear step ladder operating platform provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A rear step ladder operating platform, characterized in that: include: An operating platform (1) is fixed to the mixer truck, and an open entrance and a three-sided protective structure are provided around the operating platform (1); A guardrail rod-dropping device (2) is switchably arranged at the entrance, and the guardrail rod-dropping device (2) is in a normally closed state, so that the operating platform (1) is protected on all four sides; A step ladder (3) is arranged at the entrance and located at the bottom of the operating platform (1); the step ladder (3) extends along the height direction of the mixer truck and is fixed to the mixer truck.

2. The rear step ladder operating platform according to claim 1, characterized in that: The guardrail rod dropping device (2) comprises: At least two railings (21) are provided, at least two of the railings (21) are arranged parallel to the operating platform (1), and the railings (21) are switchable and arranged at the entrance; A connecting rod (22) is used to connect two adjacent railings (21).

3. The rear step ladder operating platform according to claim 2, characterized in that: The mixer truck is provided with a fixing seat (23) for hingedly connecting the handrail (21), and one end of the handrail (21) is connected to the fixing seat (23) by means of bolts.

4. The rear step ladder operating platform according to claim 3, characterized in that: A gantry (4) fixed to the mixer truck is provided on one side of the operating platform (1), the entrance is provided on the other side of the operating platform (1) and is arranged close to the gantry (4), and guardrail structures (5) are provided on the other two sides of the operating platform (1), the guardrail structures (5) cooperate with the gantry (4) so ​​that the operating platform (1) is protected on three sides.

5. The rear step ladder operating platform according to claim 4, characterized in that: A clamping groove (6) is provided on the guardrail structure (5) near the entrance, and the clamping groove (6) is arranged corresponding to the fixing seat (23), so that the other end of the guardrail (21) is clamped and fixed through the clamping groove (6).

6. The rear step ladder operating platform according to claim 5, characterized in that: The card slot (6) is an elastic member and has a U-shaped structure; one side of the card slot (6) is fixed to the guardrail structure (5); and the other side of the card slot (6) has a protrusion extending inwards.

7. The rear step ladder operating platform according to claim 6, characterized in that: The hopper of the mixer truck is provided with a magnet for sucking one end of the railing (21).

8. The rear step ladder operating platform according to claim 7, characterized in that: The step ladder (3) comprises a first side tube (31) and a second side tube (32) which are arranged opposite to each other, and a plurality of pedals (33) arranged between the first side tube (31) and the second side tube (32), wherein the first side tube (31) is arranged close to the mixer truck, and the second side tube (32) is arranged far from the mixer truck.

9. The rear step ladder operating platform according to claim 8, characterized in that: The second side tube (32) is provided with a guardrail slide rail (7), and the guardrail slide rail (7) is provided with a slider that is movably arranged along the guardrail slide rail (7). The slider can be fixed at any position of the guardrail slide rail (7), and the slider is connected to a safety rope.

10. A mixer truck, characterized in that: The invention comprises the rear step ladder operating platform as described in any one of claims 1 to 9.

Images