Protective structure and working machine

Abstract

The utility model provides a protection structure and an operation machine. The protection structure comprises a cantilever used for being connected with a vehicle body of the operation machine; the telescopic arm is mounted on the cantilever in a sliding manner; the telescopic arm is configured to be actuated to move back and forth between positions close to and far away from the tail part of the vehicle body; and the cross beam is connected with the telescopic arm and moves back and forth between positions close to or far away from the tail part of the vehicle body along with the telescopic arm. According to the technical scheme, the distance between the cross beam and the vehicle body is adjusted through sliding of the telescopic arm, operation requirements of different environments or laws and regulations can be met, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to a protective structure and an operating machinery. Background Art

[0002] A concrete pump truck is a machine that uses pressure to continuously transport concrete along a pipeline. It consists of a pump body and a delivery pipe. The pump body is installed on a vehicle chassis and is equipped with a retractable or flexural placing boom to form a pump truck.

[0003] In actual use, the rear of the pump truck in the related technology has no protective structure, which can easily cause damage to personnel or other operating machinery during operation, posing a great safety risk. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the related art.

[0005] To this end, a first aspect of the present application is to provide a protective structure applied to a working machine.

[0006] A second aspect of the present application is to provide a working machine.

[0007] In view of this, according to the first aspect of the present application, a protective structure applied to a working machine is proposed, wherein the working machine has a vehicle body; the protective structure includes: a cantilever for connecting to the vehicle body; a telescopic arm movably mounted on the cantilever; and a crossbeam connected to the telescopic arm and moving back and forth with the telescopic arm between a position adjacent to or away from the rear of the vehicle body.

[0008] In practical applications, a taillight mounting plate and a side marker light mounting plate are provided on the crossbeam. When the cantilever is mounted on the vehicle body, the telescopic arm is configured to be actuated and drive the crossbeam to move back and forth between positions adjacent to and away from the rear of the vehicle body; the taillight mounting plate is mounted on the inner side of the crossbeam away from the telescopic arm; and the side marker light is mounted on the side of the crossbeam.

[0009] In the above technical scheme, on the one hand, the distance between the crossbeam and the vehicle body is adjusted by sliding the telescopic arm, which can meet the working needs in different environments and protect the rear of the vehicle body, and has good practicality; on the other hand, the taillight mounting plate and the side marker light mounting plate for installing the taillights and side marker lights are integrated on the crossbeam, so as to improve the warning and practicality of the protective structure; and in actual use, the taillights and side marker lights move synchronously with the crossbeam, so as to meet the requirements of different distances between the taillights and side marker lights and the vehicle body in different environments, and further improve the practicality of the protective structure.

[0010] In some technical solutions, a locking member is further included, wherein the locking member is used to lock or unlock the telescopic arm to prevent or allow the telescopic arm to slide on the cantilever.

[0011] Specifically, the telescopic arm is provided with a plurality of first pin holes linearly arranged along the sliding direction of the telescopic arm; the cantilever is provided with at least one second pin hole; the second pin hole is configured to be connected with the first pin hole to form a locking slot hole; wherein, the locking member includes a pin shaft; when the second pin hole is connected with the first pin hole, the pin shaft is inserted in the locking slot hole to lock the telescopic arm.

[0012] In this technical solution, the telescopic arm is locked by the cooperation between the pin shaft and the first pin hole and the second pin hole, and the structure is simple, easy to operate, and convenient to process.

[0013] In some technical solutions, an insertion slot is provided on the cantilever; the sliding end of the telescopic arm cooperates to extend into the insertion slot and is slidably connected to the cantilever; and the telescopic end of the telescopic arm is connected to the crossbeam.

[0014] In practical applications, most of the telescopic arm is extended into the insertion slot, thereby saving the installation space occupied by the protective structure and facilitating the transportation and installation of the protective structure.

[0015] In the above technical solution, it also includes a pressing piece; the pressing piece is used to press the telescopic arm into the insertion groove.

[0016] Specifically, in order to ensure that the telescopic arm moves smoothly in the insertion slot, the telescopic arm and the insertion slot are usually clearance-fitted, which can easily cause the telescopic arm to move left and right in the insertion slot, causing damage to the cantilever and affecting the service life of the protective structure; in the present technical solution, the telescopic arm is pressed into the insertion slot by a clamping member, which limits the movement space of the telescopic arm, thereby avoiding the telescopic arm from moving left and right, which is beneficial to increasing the service life of the protective structure; at the same time, it can also assist in locking the telescopic arm to improve the reliability of the telescopic arm.

[0017] Furthermore, the pressing member is a bolt, a pressing spring or a spring lock.

[0018] In some technical solutions, a fixing seat is provided at one end of the cantilever away from the crossbeam for connection with the vehicle body; and the connection position between the fixing seat and the cantilever is adjustable up and down along the height direction of the fixing seat.

[0019] Specifically, the fixing seat is provided with a plurality of mounting holes arranged along the height direction of the fixing seat; a positioning seat is provided at one end of the cantilever away from the crossbeam, and an assembly hole matching the mounting hole is provided on the positioning seat; the cantilever and the fixing seat are connected and fixed by limiting members simultaneously provided in the mounting hole and the assembly hole.

[0020] In this technical solution, the cantilever and the fixing seat are connected and fixed by the limiter to facilitate the installation and transportation of the protective structure. Furthermore, the fixing seat is provided with a plurality of mounting holes arranged in the height direction, so that according to actual needs, by removing the limiter, the connection position of the cantilever and the fixing seat is adjusted to achieve the up and down adjustment of the cantilever, so that the height of the side marker light from the ground meets the actual needs; at the same time, by providing a plurality of mounting holes, it can also adapt to the installation requirements of different cantilevers, and the practicality is better.

[0021] Specifically, the limiting member is a bolt and a nut.

[0022] In the above technical solution, there are two cantilevers which are arranged opposite to each other, thereby facilitating improving the stability of the protective structure.

[0023] In practical applications, a reinforcing support member is further provided between the fixing seats of the two cantilevers to connect the fixing seats of the two cantilevers into one body, thereby further improving the stability of the protective structure.

[0024] Furthermore, a towing hook hole is provided on the fixing seat to facilitate the installation of the towing hook.

[0025] In some technical solutions, the crossbeam and the telescopic arm are connected and fixed by a detachable connecting piece to facilitate transportation and installation.

[0026] Specifically, the crossbeam is provided with a connecting seat that is docked with the telescopic end of the telescopic arm; the telescopic end of the telescopic arm is provided with a first fixed plate and a second fixed plate that are relatively arranged on both sides along the moving direction of the telescopic arm, and an assembly space for assembling the connecting seat is formed between the first fixed plate and the second fixed plate; the detachable connecting piece is used to connect and fix the first fixed plate, the second fixed plate and the connecting seat, so as to connect the crossbeam and the telescopic arm into one.

[0027] In actual application, a positioning lock is provided on the first fixing plate; a locking block that is locked and matched with the positioning lock is provided on the connecting seat; a supporting step is provided on the second fixing plate, and a supporting portion that is locked and matched with the supporting step is provided on the connecting seat. During installation, the positioning lock and the locking block are locked and matched, and the supporting step on the second fixing plate supports the supporting portion on the connecting seat. The cooperation between the two ensures that the connecting seat and the telescopic arm are always aligned, preventing the connecting seat from sliding down during subsequent installation operations, so as to facilitate installation operations.

[0028] Furthermore, in order to enhance the connection stability between the connecting seat and the crossbeam, a reinforcing rib is provided on the connecting seat.

[0029] Furthermore, the detachable connecting piece is a bolt, a nut, a pin or a spring lock.

[0030] A second aspect of the present application discloses a working machine, comprising a vehicle body and the protective structure disclosed in the first aspect of the present application.

[0031] Specifically, the operating machine has the protective structure described in any of the above technical solutions, wherein the protective structure is connected to the chassis beam of the vehicle body and forms protection at the rear of the vehicle body. Thus, the operating machine has all the beneficial effects of the above technical solutions, which will not be repeated here.

[0032] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 One of the structural schematic diagrams of the protection structure in the embodiment of the present application is shown;

[0035] Figure 2 The second structural schematic diagram of the protection structure in the embodiment of the present application is shown;

[0036] Figure 3 The third structural schematic diagram of the protection structure in the embodiment of the present application is shown;

[0037] Figure 4 One of the structural schematic diagrams of the telescopic arm of the protective structure in the embodiment of the present application is shown;

[0038] Figure 5 The second structural schematic diagram of the telescopic arm of the protective structure in the embodiment of the present application is shown;

[0039] Figure 6 A schematic structural diagram of a cantilever of a protective structure in an embodiment of the present application is shown;

[0040] Figure 7 Shows Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0041] Figure 8 A schematic cross-sectional structure diagram of the positioning lock in an embodiment of the present application is shown.

[0042] in, Figures 1 to 8 The corresponding relationship between the reference numerals and the component names is as follows:

[0043] 1-cantilever; 11-second pin hole; 12-insertion slot; 13-positioning seat; 2-telescopic arm; 21-first pin hole; 22-first fixing plate; 23-second fixing plate; 231-supporting step; 3-crossbeam; 31-taillight mounting plate; 32-side marker light mounting plate; 33-connecting seat; 331-supporting part; 332-locking block; 4-locking member; 5-pressing member; 6-fixing seat; 61-mounting hole; 62-reinforced support member; 63-tow hook hole; 7-limiting member; 8-detachable connecting member; 9-positioning lock; 91-housing; 92-locking rod; 93-spring; 94-pull rod. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0046] Combine the following Figures 1 to 8 , the protective structure and operating machinery provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0047] like Figures 1 to 3 As shown, an embodiment of the present application discloses a protective structure applied to an operating machine, the structure of which includes a cantilever 1, a telescopic arm 2 and a crossbeam 3.

[0048] Specifically, the working machine has a vehicle body (not shown in the drawings). A boom 1 is used to connect with the vehicle body. A telescopic arm 2 is movably mounted on the boom 1; a crossbeam 3 is connected to the telescopic arm 2 and moves back and forth with the telescopic arm 2 between positions adjacent to or away from the rear of the vehicle body, and a taillight mounting plate 31 and a side marker light mounting plate 32 are also mounted on the crossbeam 3.

[0049] In actual application, the boom 1 is connected to the vehicle body; the telescopic arm 2 is configured to be actuated and move back and forth between positions adjacent to and away from the rear of the vehicle body; the taillight mounting plate 31 is installed on the inner side of the cross beam 3 away from the telescopic arm 2; and the side marker light mounting plate 32 is installed on the side of the cross beam 3.

[0050] In the above embodiment, on the one hand, the distance between the cross beam 3 and the vehicle body is adjusted by sliding the telescopic arm 2, which can meet the working needs in different environments, so as to protect the rear of the vehicle body and has good practicality; on the other hand, the tail light mounting plate 31 and the side marker light mounting plate 32 for mounting the tail lights and the side marker lights are integrated on the cross beam 3, so as to improve the warning and practicality of the protective structure; and in actual use, the tail lights and the side marker lights move synchronously with the cross beam 3, so as to meet the requirements of different distances between the tail lights and the side marker lights and the vehicle body in different environments, and further improve the practicality of the protective structure.

[0051] In some embodiments, considering that the cross beam 3 needs to be kept at the target position, the protective structure is further provided with a locking member 4. The locking member 4 is used to lock or unlock the telescopic arm 2 to prevent or allow the telescopic arm 2 to move, thereby keeping the cross beam 3 at the target position.

[0052] Specifically, the telescopic arm 2 is provided with a plurality of first pin holes 21 arranged linearly along the sliding direction of the telescopic arm 2; the cantilever 1 is provided with a second pin hole 11, and the second pin hole 11 is designed to be intermittently connected with the first pin hole 21 as the telescopic arm 2 slides; when the second pin hole 11 is connected with the first pin hole 21, a locking slot hole for assembling the locking member 4 can be formed (not shown in the drawings). In this embodiment, the locking member 4 is a pin shaft. The telescopic arm 2 is locked by the cooperation of the pin shaft, the first pin hole 21 and the second pin hole 11, and the structure is simple, easy to operate, and convenient to process.

[0053] like Figure 6 As shown, in some embodiments, the interior of the cantilever 1 is hollow to form an insertion slot 12 for the telescopic arm 2 to be inserted into, and one end (sliding end) of the telescopic arm 2 fits into the insertion slot 12 and is slidably connected to the cantilever 1; the other end (telescopic end) of the telescopic arm 2 is connected to the crossbeam 3.

[0054] In this embodiment, an insertion slot 12 for the telescopic arm 2 to be inserted into is provided on the cantilever 1, so that when not in use, most of the telescopic arm 2 can be inserted into the insertion slot 12, thereby saving the installation space occupied by the protective structure and facilitating the installation and transportation of the protective structure.

[0055] In the above embodiments, considering that in actual applications, in order to ensure that the telescopic arm 2 moves smoothly in the insertion slot 12, the telescopic arm 2 and the insertion slot 12 are usually designed to be clearance-fitted, which may easily cause the telescopic arm 2 to move left and right in the insertion slot 12, causing damage to the cantilever 1 and affecting the service life of the protective structure. In some embodiments, the protective structure is also designed with a clamping member 5 for pressing the telescopic arm 2 in the insertion slot 12, thereby limiting the movement space of the telescopic arm, which can prevent the telescopic arm 2 from moving left and right to increase the service life of the protective structure, and can also assist in locking the telescopic arm 2 to improve the reliability of the locking of the telescopic arm 2.

[0056] Specifically, the pressing member 5 can be a bolt, a pressing spring or a spring lock, etc., but the present embodiment is not limited thereto.

[0057] like Figures 1 to 3 As shown, in some embodiments, in order to facilitate the fixing of the protective structure, a fixing seat 6 is provided at one end of the cantilever 1 away from the cross beam 3 for connection with the vehicle body; and the connection position of the fixing seat 6 and the cantilever 1 is adjustable up and down along the height direction of the fixing seat 6. Specifically, the fixing seat 6 is provided with a plurality of groups of linearly arranged mounting holes 61 along the height direction of the fixing seat 6. A positioning seat 13 is provided at one end of the cantilever 1 away from the cross beam 3, and an assembly hole (not shown in the drawings) matching the mounting hole 61 is provided on the positioning seat 13; the fixing seat 6 and the cantilever 1 are connected as a whole through a stopper 7 which is simultaneously provided in the mounting hole 61 and the assembly hole of the positioning seat 13.

[0058] In the above embodiment, the fixing seat 6 and the cantilever 1 are connected into one piece by the cooperation of the stopper 7, the mounting hole 61 and the assembly hole, and the structure is simple, easy to operate, and convenient to process. Further, by removing the stopper 7, the connection position of the cantilever 1 and the fixing seat 6 is adjusted to achieve the up and down adjustment of the cantilever 1, so that the height of the side marker light of the protective structure from the ground meets the actual needs; and the multiple groups of mounting holes 61 provided can adapt to the installation requirements of different cantilevers 1, and the practicality is better. In practical applications, the stopper 7 is a bolt and nut, and this embodiment is not limited to this.

[0059] like Figure 3 As shown, in some embodiments, in order to improve the stability of the protective structure, there are two cantilevers 1, which are arranged opposite to each other; at the same time, a reinforcing support member 62 is provided between the fixing seats 6 of the two cantilevers 1 to connect the two fixing seats 6 into one.

[0060] Specifically, a towing hook hole 63 is further provided on the fixing base 6 to facilitate the installation of the towing hook.

[0061] In some embodiments, in order to facilitate the transportation and installation of the protective structure, the cross beam 3 and the telescopic arm 2 are connected and fixed by a detachable connecting piece 8.

[0062] Specifically, Figure 4 , Figure 5 and Figure 7 As shown, the cross beam 3 is provided with a connecting seat 33 which is docked with the telescopic end of the telescopic arm 2; the telescopic end of the telescopic arm 2 is provided with a first fixing plate 22 and a second fixing plate 23 which are arranged opposite to each other on both sides along the moving direction of the telescopic arm 2, and an assembly space for assembling the connecting seat 33 is formed between the first fixing plate 22 and the second fixing plate 23; the detachable connecting member 8 is used to connect the first fixing plate 22, the connecting seat 33 and the second fixing plate 23 into one, so as to connect the cross beam 3 and the telescopic arm 2 into one.

[0063] More specifically, the connection seat 33 and the crossbeam 3 are detachably connected and fixed by bolts. The detachable connection member 8 includes bolts and nuts, pins or spring locks, etc., but the present embodiment is not limited thereto.

[0064] In practical applications, such as Figure 2 , Figure 7 and Figure 8 As shown, the first fixing plate 22 is provided with a positioning lock 9, and correspondingly, the connecting seat 33 is provided with a locking block 332 that locks and cooperates with the positioning lock 9. The second fixing plate 23 is provided with a supporting step 231, and the connecting seat 33 is provided with a supporting portion 331 that cooperates with the supporting step. During installation, the positioning lock 9 and the locking block 332 are locked and cooperated, and the supporting step 231 on the second fixing plate 23 supports the supporting portion 331 on the connecting seat 33. The cooperation between the two can prevent the connecting seat 33 from sliding down, so that the connecting seat 33 and the telescopic arm 2 remain aligned, so as to facilitate subsequent installation operations.

[0065] In this embodiment, the positioning lock 9 includes a housing 91, a locking rod 92, a spring 93 and a pull rod 94. The housing 91 is mounted on the first fixing plate 22; the locking rod 92 is movably arranged in the housing 91, one end of which is slidably connected to the housing 91, and the other end can pass through the first fixing plate 22 and be plugged into the locking block 332; the spring 93 is sleeved on the locking rod 92, one end of which is connected to the locking rod 92, and the other end of which is connected to the housing 91; the pull rod 94 is connected to the locking rod 92.

[0066] During installation, the staff pulls the pull rod 94 to retract the other end of the locking rod 92 into the shell 91. At this time, the spring 93 is compressed. When the connecting seat 33 and the telescopic arm 2 are aligned, the pull rod 94 is released. Under the action of the spring 93, the other end of the locking rod 92 passes through the first fixed plate 22 and the locking block 332 of the connecting seat 33 and is plugged in; at the same time, the supporting step 231 on the second fixed plate 23 supports the supporting part 331 on the connecting seat 33. The two cooperate to position and lock the connecting seat 33, thereby ensuring that the connecting seat 33 and the telescopic arm 2 are aligned to prevent the connecting seat 33 from sliding down during subsequent installation operations.

[0067] In order to enhance the connection stability between the connection seat 33 and the cross beam 3 , a reinforcing rib is further provided on the connection seat 33 .

[0068] In some embodiments, the present application also discloses a working machine having a vehicle body and a protective structure of any of the above embodiments.

[0069] Specifically, the protective structure is connected to the chassis beam of the vehicle body and forms protection at the rear of the vehicle body, so that the working machine has all the beneficial effects of the above embodiments, which will not be repeated here.

[0070] It should be clarified that in the claims, specification and drawings of the present application, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, which is only for the purpose of more conveniently describing the present application and making the description process easier, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present application; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood based on the specific circumstances of the above data.

[0071] In the claims, specification and drawings of the present application, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the claims, specification and drawings of the present application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A protective structure, applied to a working machine, wherein the working machine has a vehicle body, characterized in that: The protective structure comprises: A cantilever, used for connecting with the vehicle body; a telescopic arm movably mounted on the cantilever; the telescopic arm being configured to be actuated and move back and forth between positions adjacent to and away from the rear of the vehicle body; The cross beam is connected to the telescopic arm and moves back and forth with the telescopic arm between a position close to or far away from the rear of the vehicle body.

2. The protective structure according to claim 1, characterized in that: A fixing seat is provided at one end of the cantilever away from the cross beam for connecting with the vehicle body; Wherein, the connection position between the cantilever and the fixing seat is adjustable up and down along the height direction of the fixing seat.

3. The protective structure according to claim 1, characterized in that: A tail light mounting plate and a side marker light mounting plate are arranged on the cross beam.

4. The protective structure according to claim 1, characterized in that: A locking member is also included; the locking member is used to lock or unlock the telescopic arm to prevent or allow the telescopic arm to slide on the cantilever.

5. The protective structure according to claim 4, characterized in that: The telescopic arm is provided with a plurality of first pin holes linearly arranged along the sliding direction of the telescopic arm; At least one second pin hole is provided on the cantilever; the second pin hole is configured to be connected to the first pin hole to form a locking slot hole; Wherein, the locking member comprises a pin; When the second pin hole is connected to the first pin hole, the pin shaft is inserted into the locking slot hole to lock the telescopic arm.

6. The protective structure according to claim 5, characterized in that: The cantilever is provided with an insertion slot; The sliding end of the telescopic arm cooperates to extend into the insertion slot and is slidably connected to the cantilever; The telescopic end of the telescopic arm is connected to the crossbeam; Wherein, the protective structure also includes a pressing piece; the pressing piece is used to press the telescopic arm into the insertion groove.

7. The protective structure according to claim 2, characterized in that: There are two cantilevers, which are arranged opposite to each other; wherein a reinforcing support member is arranged between the fixing seats to connect the fixing seats into one body.

8. The protective structure according to any one of claims 1 to 7, characterized in that: The cross beam and the telescopic arm are connected and fixed via a detachable connecting piece.

9. The protective structure according to claim 8, characterized in that: A connecting seat is provided on the crossbeam; The telescopic end of the telescopic arm is provided with a first fixing plate and a second fixing plate which are arranged opposite to each other on both sides of the telescopic arm along the moving direction of the telescopic arm; the space between the first fixing plate and the second fixing plate forms an assembly space for assembling the connecting seat; Wherein, the detachable connecting member is used to connect the connecting seat and the first fixing plate and the second fixing plate into one body; The first fixing plate is provided with a positioning lock; the connecting seat is provided with a locking block that locks with the positioning lock; The second fixing plate is provided with a supporting step; The connecting seat is provided with a supporting portion which cooperates with the supporting step.

10. A working machine, characterized in that: include: Vehicle body; The protective structure according to any one of claims 1 to 9; Wherein, the protective structure forms protection at the rear of the vehicle body.

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