Vehicle-mounted small hoisting device

Abstract

The utility model discloses a vehicle-mounted small hoisting device, which relates to the technical field of hoisting devices and comprises a main vertical rod, a hoisting arm is rotatably mounted at the top of the main vertical rod, a base is fixedly mounted at the bottom of the main vertical rod, and the base comprises a base body and a lower vertical rod. The base body is provided with a plurality of vertical through screw holes used for fixedly installing the base body on a vehicle, the first limiting piece comprises a first connecting rod, and one end of the first connecting rod is fixedly connected with the lower vertical rod; the connecting part is arranged at one end, away from the lower vertical rod, of the first connecting rod; the inserting block is arranged on the connecting part in a height-adjustable mode, an inserting groove is formed in the upper end face of the inserting block, and the inserting groove is matched with a special supporting point of a jack of the vehicle in an inserting mode. The technical problems existing in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting devices, in particular to a small vehicle-mounted hoisting device. Background Technique

[0002] When maintaining highways, not only the highway itself needs to be maintained, but also the domestic waste and construction waste on the slopes on both sides of the highway and near the slopes need to be cleared. Since there are usually no roads for vehicles to drive on the slopes on both sides of the highway, the domestic waste and construction waste to be cleared need to be transported to the maintenance vehicles on the highway through the slopes. Simply transporting the waste manually on the slopes is time-consuming and laborious, especially when the volume and weight of the waste are large.

[0003] A vehicle-mounted crane is a lifting device installed on a vehicle, mainly used for lifting and transporting heavy objects. This device is usually widely used in construction sites, logistics transportation, rescue and disaster relief and other fields. For example, the Chinese utility model patent with the authorization announcement number of CN218909685U discloses a vehicle-mounted crane, and for another example, the Chinese utility model patent with the authorization announcement number of CN207537031U discloses a vehicle-mounted portable crane.

[0004] The vehicle-mounted crane can be completely installed in the cargo box of the maintenance vehicle. When it is necessary to hoist the waste on the slopes on both sides of the highway, drive the maintenance vehicle into the emergency lane and close to the corrugated guardrail, rotate the boom of the vehicle-mounted crane to make the working end of the boom close to the corrugated guardrail, control the motor through the remote control, the motor drives the winch to release the steel wire rope, and the staff holds the hook on the steel wire rope and walks down the slope until the hook is connected to the waste to be hoisted. Control the motor through the remote control, the motor drives the winch to retract the steel wire rope, and the waste moves up the slope during the retraction of the steel wire rope. When the hoisted waste needs to cross the corrugated guardrail, the staff gives an upward force to the hoisted waste to make the waste cross the corrugated guardrail. After the hoisted waste crosses the corrugated guardrail, rotate the boom until the waste reaches the cargo box, control the motor through the remote control, the motor drives the winch to release the steel wire rope, and after the waste contacts the bottom of the cargo box, separate the waste from the hook.

[0005] The above working process has the following technical problems: When the hoisted waste crosses the corrugated guardrail, since the length of the boom is not enough to cross above the corrugated guardrail to reach directly above the slope, it is necessary for the staff to give an upward force to the waste, which is not only time-consuming and laborious, but also has a high risk coefficient when the hoisted waste is heavy.

[0006] An easily conceivable solution to the above technical problem is to make the on-vehicle crane have a longer boom. However, after the boom length increases, the overall weight of the entire on-vehicle crane will also increase accordingly. That is, the model of the on-vehicle motor becomes larger, but the bottom of the carriage of the maintenance vehicle does not have the ability to install a large-sized on-vehicle motor. If a large-sized on-vehicle crane is forcibly installed, due to the insufficient connection strength at the connection between the on-vehicle crane and the carriage, it is easy to cause damage at the connection between the on-vehicle crane and the carriage, and even cause damage to the self-structure of the carriage. Utility Model Content

[0007] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a small on-vehicle lifting device to solve the technical problems existing in the prior art.

[0008] To achieve the above purpose, the present utility model provides a small on-vehicle lifting device, including a main vertical rod. A boom is rotatably installed at the top of the main vertical rod, and a base is fixedly installed at the bottom of the main vertical rod. The base includes a base body and a lower vertical rod. The base body is provided with a plurality of vertically penetrating screw holes for fixedly installing the base body on the vehicle. The lower vertical rod is vertically installed on the upper end surface of the base body. The small on-vehicle lifting device further includes a first limiting member, and the first limiting member includes:

[0009] A first connecting rod, one end of the first connecting rod is fixedly connected to the lower vertical rod;

[0010] A connecting portion, which is arranged at the end of the first connecting rod away from the lower vertical rod;

[0011] A plug-in block, which is arranged on the connecting portion with adjustable height. The upper end surface of the plug-in block is provided with a plug-in groove, and the plug-in groove is in plug-in fit with the special support point of the vehicle jack.

[0012] Furthermore, the small on-vehicle lifting device further includes a second limiting member, and the second limiting member includes:

[0013] A second connecting rod, one end of the second connecting rod is fixedly connected to the lower vertical rod, and the second connecting rod and the first connecting rod are respectively located on opposite sides of the lower vertical rod;

[0014] A baffle, which is installed on the side of the second connecting rod away from the lower vertical rod. The distance between the baffle and the lower vertical rod is adjustable, and the baffle is in abutting fit with the column below the corrugated guardrail.

[0015] Furthermore, the small on-vehicle lifting device further includes a hydraulic jack rod, and the hydraulic jack rod includes a hydraulic cylinder and a jack rod. The bottom of the hydraulic cylinder is fixedly connected to the base body, and the working end of the jack rod is fixedly connected to the bottom of the plug-in block.

[0016] Further, the on-vehicle small hoisting device further includes a sleeve and a first lead screw. The bottom of the sleeve is fixedly connected to the base body. The bottom of the first lead screw is in threaded connection with the sleeve, and the top end of the first lead screw is in abutting fit with the insertion block.

[0017] Further, the boom slopes upward from the end connected to the main vertical rod to the other end.

[0018] Further, an installation frame is provided at the rear end of the boom. A motor and a winch are drivingly connected on the installation frame. A steel wire rope is wound around the winch. The steel wire rope is connected to a hook after passing through a fixed pulley provided at the front end of the boom.

[0019] Further, the base body includes a rectangular frame and a plurality of reinforcing ribs arranged in a crisscross manner inside the rectangular frame. The lower vertical rod is installed at the intersection of the reinforcing ribs.

[0020] Further, a support plate is provided on one side of the rectangular frame. The lower surface of the support plate is flush with the lower surface of the rectangular frame.

[0021] The beneficial effects of the present utility model are as follows:

[0022] When the weight of the garbage to be hoisted is light, the present utility model can be directly installed in the cargo box of the highway maintenance vehicle through a plurality of vertically penetrating screw holes on the base body, and the hoisting operation can be directly carried out in the cargo box.

[0023] When the weight of the garbage to be hoisted is heavy, the present utility model is integrally disassembled from the cargo box. By adjusting the height of the insertion block, the insertion slot is in plug-in fit with the special support point of the jack of the highway maintenance vehicle. Since the special support point of the jack of the highway maintenance vehicle can provide sufficient connection strength, the boom can have sufficient height and length to cross over the corrugated guardrail to reach directly above the slope. When the hoisted garbage crosses the guardrail, the staff does not need to apply an upward force to the garbage, which saves time and effort and provides good protection for the staff. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0025] Figure 1 It is the overall structure diagram of an embodiment of an on-vehicle small hoisting device of the present utility model;

[0026] Figure 2 For corresponding Figure 1 partial structure diagram;

[0027] Figure 3 For Figure 2 partial enlarged view at position A in

[0028] Figure 4 Partial structure diagram of another embodiment of a small vehicle-mounted hoisting device of the present utility model;

[0029] Figure 5 For Figure 4 partial enlarged view at position B in

[0030] Figure 6 Assembly diagram of the connecting part and the plug-in block in a small vehicle-mounted hoisting device of the present utility model.

[0031] In the figure, 1, main vertical rod; 2, boom; 3, base; 31, base body; 311, support plate; 32, lower vertical rod; 4, first limiting member; 41, plug-in block; 411, plug-in slot; 42, connecting part; 43, first connecting rod; 44, hydraulic jack; 45, sleeve; 46, first lead screw; 461, nut for height adjustment; 47, locking bolt; 5, second limiting member; 51, second connecting rod; 52, second lead screw; 53, baffle; 6, mounting bracket; 7, motor; 8, steel wire rope; 9, hook; 10, winch. Detailed implementation manners

[0032] Next, in conjunction with the attached Figure 1 - attached Figure 6 , the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, in the present application, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this application, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In addition, the technical solutions between various embodiments of this application can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0037] The present utility model provides a small vehicle-mounted hoisting device, which includes a main vertical rod 1. A boom 2 is rotatably installed at the top of the main vertical rod 1. A base 3 is fixedly installed at the bottom of the main vertical rod 1. The base 3 includes a base body 31 and a lower vertical rod 32. The base body 31 is provided with a plurality of vertically penetrating screw holes for fixedly installing the base body 31 on the vehicle. The lower vertical rod 32 is vertically installed on the upper end surface of the base body 31. The small vehicle-mounted hoisting device further includes a first limiting member 4. The first limiting member 4 includes: a first connecting rod 43, one end of the first connecting rod 43 is fixedly connected to the lower vertical rod 32; a connecting portion 42, the connecting portion 42 is arranged at the end of the first connecting rod 43 away from the lower vertical rod 32; a plug-in block 41, the plug-in block 41 is arranged on the connecting portion 42 with adjustable height. The upper end surface of the plug-in block 41 is provided with a plug-in groove 411, and the plug-in groove 411 is in plug-in fit with the special support point of the jack of the highway maintenance vehicle.

[0038] In the technical solution proposed in this application, when the weight of the lifted garbage is relatively light, the present utility model can be directly installed in the carriage of the highway maintenance vehicle through several vertically penetrating screw holes on the base body 31, and the hoisting operation can be directly carried out in the carriage.

[0039] When the lifted garbage is relatively heavy, the whole of the present utility model is disassembled from the carriage, and the height of the plug-in block 41 is adjusted to make the plug-in groove 411 in plug-in fit with the special support point of the jack of the highway maintenance vehicle. Since the special support point of the jack of the highway maintenance vehicle can provide sufficient connection strength, the boom 2 can have sufficient height and length to cross over from above the corrugated guardrail to directly above the slope. When the lifted garbage crosses the guardrail, the staff does not need to apply an upward force to the garbage, which saves time and effort and provides good protection for the staff.

[0040] There are many ways to realize that the plug-in block 41 is arranged on the connecting part 42 in an adjustable height. As a preferred embodiment, the connecting part 42 is provided with a limit through hole, which passes through the upper and lower end surfaces of the connecting part 42. The plug-in block 41 is plugged and matched with the limit through hole. The end surface of the connecting part 42 away from the lower upright 32 is screwed with two locking bolts 47, and the two locking bolts 47 are both in contact with the plug-in block 41. When it is necessary to adjust the height of the plug-in block 41 to allow the plug-in slot 411 and the special support point of the jack to be plugged and matched, the two locking bolts 47 are first loosened, and the two locking bolts 47 are locked after the height is adjusted to the right position.

[0041] In order to better limit the overall position of the utility model, as a preferred embodiment, the further improvement of the utility model is that the vehicle-mounted small lifting device also includes a second limiting member 5, and the second limiting member 5 includes: a second connecting rod 51, one end of the second connecting rod 51 is fixedly connected to the lower upright 32, and the second connecting rod 51 and the first connecting rod 43 are respectively located on the opposite sides of the lower upright 32; a baffle 53, the baffle 53 is installed on the side of the second connecting rod 51 away from the lower upright 32, the distance between the baffle 53 and the lower upright 32 is adjustable, and the baffle 53 is in conflict with the column below the corrugated guardrail.

[0042] One side of the lower pole 32 is limited by the cooperation of the insertion groove 411 and the special support point of the jack, and the other side of the lower pole 32 is limited by the cooperation of the baffle 53 and the column, so that the utility model can be placed more stably on the road surface of the highway during lifting operations.

[0043] There are many structures for achieving adjustable distance between the baffle 53 and the lower upright 32. As a preferred embodiment, the first stopper 4 further includes a second screw 52, ​​one end of which is fixedly connected to the baffle 53, and the other end of which is screwed to the end face of the second connecting rod 51 away from the lower upright 32. When the distance between the baffle 53 and the upright needs to be adjusted, the baffle 53 can be rotated. In order to protect the uprights under the corrugated guardrail, a protective layer can be provided on the outer surface of the baffle 53.

[0044] It can be understood that if the plug-in block 41 is locked simply by relying on the locking bolt 47, the connection between the plug-in slot 411 and the special support point of the jack is relatively unstable. In order to improve the connection stability between the plug-in slot 411 and the special support point of the jack, as a preferred embodiment, the further improvement of the utility model lies in that the vehicle-mounted small lifting device also includes a hydraulic push rod 44, the hydraulic push rod 44 includes a hydraulic cylinder and a push rod, the bottom of the hydraulic cylinder is fixedly connected to the base body 31, and the working end of the push rod is fixedly connected to the bottom of the plug-in block 41.

[0045] It can be understood that by pushing up the insertion block 41 with the ejector rod, not only can the connection stability between the insertion slot 411 and the special support point of the jack be improved, but also the extrusion force between the insertion slot 411 and the special support point of the jack can be controlled by controlling the lifting of the ejector rod, so that the special support point of the jack can provide higher connection strength.

[0046] To improve the connection stability between the insertion slot 411 and the special support point of the jack, as another preferred embodiment, a further improvement of the present utility model lies in that the vehicle-mounted small hoist further includes a sleeve 45 and a first lead screw 46. The bottom of the sleeve 45 is fixedly connected to the base body 31, the bottom of the first lead screw 46 is threadedly connected to the sleeve 45, the top end of the first lead screw 46 is in abutting fit with the insertion block 41, and a height-adjusting nut 461 is fixedly sleeved on the outer peripheral surface of the first lead screw 46.

[0047] To enable the present utility model to still be able to cross over the corrugated guardrail above while having a relatively small weight, as a preferred embodiment, a further improvement of the present utility model lies in that the boom 2 is inclined upward from the end connected to the main vertical rod 1 to the other end.

[0048] It can be understood that the boom 2 is inclined upward from the end connected to the main vertical rod 1 to the other end, which can reduce the overall height of the main vertical rod 1 and the lower vertical rod 32 on the premise of ensuring that the boom 2 can cross over the corrugated guardrail above, thereby reducing the overall weight of the present utility model.

[0049] An installation frame 6 is provided at the rear end of the boom 2. A motor 7 and a winch 10 are drivingly connected to the installation frame 6. A steel wire rope 8 is wound around the winch 10. The steel wire rope 8 is connected to a hook 9 after passing through a fixed pulley provided at the front end of the boom 2. The base body 31 includes a rectangular frame and a plurality of reinforcing ribs arranged in a staggered manner inside the rectangular frame. The lower vertical rod 32 is installed at the intersection of the reinforcing ribs. The lower vertical rod 32 coincides with the central axis of the main vertical rod 1, and the top of the lower vertical rod 32 is detachably connected to the bottom of the main vertical rod 1.

[0050] To provide an installation position for the hydraulic cylinder or the sleeve 45, as a preferred embodiment, a further improvement of the present utility model lies in that a support plate 311 is provided on one side of the rectangular frame, and the lower surface of the support plate 311 is flush with the lower surface of the rectangular frame.

[0051] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application under the inventive concept of the present application, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A small vehicle-mounted lifting device, comprising a main pole, a lifting arm is rotatably mounted on the top of the main pole, a base is fixedly mounted on the bottom of the main pole, the base comprises a base body and a lower pole, the base body is provided with a plurality of vertical through screw holes for fixing the base body on the vehicle, the lower pole is vertically mounted on the upper end surface of the base body, characterized in that: The vehicle-mounted small hoisting device further includes a first limiter, and the first limiter includes: A first connecting rod, one end of which is fixedly connected to the lower upright rod; A connecting portion, the connecting portion being arranged at an end of the first connecting rod away from the lower upright rod; A plug-in block is height-adjustably arranged on the connecting portion, and an inserting groove is arranged on the upper end surface of the plug-in block, and the inserting groove is plugged and matched with a special supporting point of the vehicle's jack.

2. The small vehicle-mounted lifting device according to claim 1, characterized in that: The vehicle-mounted small crane device further includes a second limiting member, and the second limiting member includes: A second connecting rod, one end of which is fixedly connected to the lower upright rod, and the second connecting rod and the first connecting rod are respectively located at two opposite sides of the lower upright rod; The baffle is installed on a side of the second connecting rod away from the lower upright pole, the distance between the baffle and the lower upright pole is adjustable, and the baffle is in contact with the upright pole below the corrugated guardrail.

3. The small vehicle-mounted lifting device according to claim 2, characterized in that: The vehicle-mounted small lifting device also includes a hydraulic push rod, which includes a hydraulic cylinder and a push rod. The bottom of the hydraulic cylinder is fixedly connected to the base body, and the working end of the push rod is fixedly connected to the bottom of the plug block.

4. The small vehicle-mounted lifting device according to claim 2, characterized in that: The small vehicle-mounted lifting device also includes a sleeve and a first screw, the bottom of the sleeve is fixedly connected to the base body, the bottom of the first screw is threadedly connected to the sleeve, and the top of the first screw is in abutment with the plug-in block.

5. The vehicle-mounted small hoisting device according to claim 1, characterized in that: The boom is inclined upward from one end connected to the main vertical pole to the other end.

6. The small vehicle-mounted lifting device according to claim 1, characterized in that: A mounting frame is provided at the rear end of the boom, and a driving motor and a winch are provided on the mounting frame. A steel wire rope is wound around the winch, and the steel wire rope is connected to a hook after passing through a fixed pulley provided at the front end of the boom.

7. The small vehicle-mounted lifting device according to claim 3 or 4, characterized in that: The base body comprises a rectangular frame and a plurality of staggered reinforcing ribs arranged inside the rectangular frame, and the lower upright rod is installed at the intersection of the reinforcing ribs.

8. The small vehicle-mounted lifting device according to claim 7, characterized in that: A support plate is provided on one side of the rectangular frame, and a lower surface of the support plate is flush with a lower surface of the rectangular frame.

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