Anti-falling locking structure for truck arm of truck-mounted crane

Abstract

The utility model discloses a lorry-mounted crane transport vehicle arm anti-falling locking structure which comprises a suspension arm body, the suspension arm body comprises a main arm, middle arm anti-falling locking assemblies are arranged on the two sides of the main arm, each middle arm anti-falling locking assembly comprises a fixing block, the output end of a large hydraulic rod is fixedly connected with a first clamping block, and the output end of the large hydraulic rod is fixedly connected with a second clamping block. The utility model relates to the technical field of crane transport vehicle arms. According to the anti-falling locking structure for the truck arm of the lorry-mounted crane, the large hydraulic rod is extended after the suspension arm main body is extended in the hoisting operation process, so that the suspension arm can be reinforced, and the situation that the suspension arm needs to bear the tensile force of a heavy object and the action of various external forces is avoided; the cantilever crane can fall off from a main structure due to loosening, vibration and other reasons of a connecting part, heavy objects fall off, and then serious damage and loss are caused to workers, equipment and properties, so that the beneficial effects of prolonging the service life of the suspension arm and protecting the property and the personal safety of the workers are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist and transport car arm technical field, concretely is a hoist and transport car arm anti -drop locking structure of vehicle. BACKGROUND

[0002] When hoisting operation is carried out, the arm support needs to bear huge load, if the anti -drop locking structure is unreliable, the arm support can appear loose, slip off and other problems under the condition of bearing the tension of heavy object, causes heavy object to fall, and the serious safety accident is caused.

[0003] At present, in the hoisting operation process, if there is no anti -drop structure, the arm support can fall off from the main structure due to the reasons such as loose, vibration of connecting part under the action of the tension of heavy object and various external forces, causes heavy object to fall, and the serious harm and loss are caused to the personnel, equipment and property below, and simultaneously in the operation process, the operator can frequently stop operation because of worrying that the arm support is not consolidated firmly, and the state of arm support is checked and confirmed.

[0004] Therefore, the utility model provides a hoist and transport car arm anti -drop locking structure of vehicle to solve the above -mentioned problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiency of prior art, the utility model provides a hoist and transport car arm anti -drop locking structure of vehicle, and solves the above -mentioned problems.

[0006] To realize above -mentioned purpose, the utility model is realized through following technical scheme: a hoist and transport car arm anti -drop locking structure of vehicle, including the hoist arm main part, the hoist arm main part includes the main arm, the main arm left end swing joint has the intermediate arm, the both sides of main arm are provided with the intermediate arm anti -drop locking assembly, the intermediate arm anti -drop locking assembly includes the fixed block, the fixed block number is two and two fixed block front side surface is all fixedly connected with the large -scale hydraulic rod end, the large -scale hydraulic rod output is fixedly connected with the first clamping block, the fixed block is fixedly connected in the main arm side surface.

[0007] Further, the first inclined surface opening is set up in the left end side surface of the main arm, and the first clamping block inclined surface is movably connected to the side surface of the first inclined surface opening.

[0008] Adopting the technical scheme, the large hydraulic rod is extended after the extension of the boom main body in the hoisting operation process, the boom can be reinforced, the boom can be prevented from falling off from the main structure due to loosening of a connecting position, vibration and other reasons, the heavy object is prevented from falling, and serious harm and loss to workers, equipment and property are avoided, the service life of the boom is prolonged, the property is protected, and the personal safety of the workers is protected.

[0009] Further, the right end side surfaces of the intermediate arms are each provided with a second inclined surface opening, and the first clamping block inclined surface is movably connected to the side surface of the second inclined surface opening.

[0010] The first clamping block is in contact with the side surface of the second inclined surface opening, the sliding of the first clamping block on the side surfaces of the first inclined surface opening and the second inclined surface opening is smoother, and the movement of the device is more flexible.

[0011] Further, the left end of the intermediate arm is movably connected with an end arm, the right end side surface of the end arm is provided with an inclined surface notch, and the left end side surfaces of the intermediate arm are provided with a strip-shaped slot.

[0012] When the end arm is retracted, the small hydraulic rod is hidden through the strip-shaped slot, the small hydraulic rod is prevented from blocking and affecting the retraction of the boom.

[0013] Further, the strip-shaped slot is internally provided with a top anti-falling locking assembly, the top anti-falling locking assembly comprises a small hydraulic rod, and the small hydraulic rod is fixedly connected to the inner wall of the strip-shaped slot.

[0014] The small hydraulic rod makes the extension and retraction of the second clamping block more convenient, and the working efficiency of the device is not affected.

[0015] Further, the small hydraulic rod is fixedly connected with a second clamping block at the output end, and the second clamping block is movably connected to the inclined surface of the inclined surface notch.

[0016] The extension and retraction of the large hydraulic rod and the small hydraulic rod make the reinforcement of the intermediate arm and the end arm by the first clamping block and the second clamping block more flexible, and the device is convenient to operate, the misoperation of the workers is reduced, and the working efficiency is improved.

[0017] Advantages

[0018] The utility model provides a vehicle-mounted hoisting and transport vehicle arm anti-falling locking structure.

[0019] 1. The arm anti-falling locking structure of the truck-mounted crane transport vehicle, in the lifting operation process, the extension of the main body of the lifting arm is realized, then the extension of the large hydraulic rod is realized, the lifting arm can be reinforced, the arm frame can be prevented from falling off from the main structure due to loosening of the connecting part, vibration and other reasons, the heavy object is prevented from falling, and serious harm and loss to the workers, equipment and property are caused, the service life of the lifting arm is prolonged, the property is protected, and the personal safety of the workers is protected.

[0020] 2. The arm anti-falling locking structure of the truck-mounted crane transport vehicle, through the extension of the large hydraulic rod and the small hydraulic rod, the reinforcement of the first clamping block and the second clamping block on the intermediate arm and the end arm is more flexible, and the beneficial effects of facilitating device operation, reducing worker misoperation and improving work efficiency are realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiment of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of not paying creative labor.

[0022] Figure 1 is the external structure perspective view of the present application;

[0023] Figure 2 is the structure bottom view of the present application;

[0024] Figure 3 is the structure perspective view of the present application Figure 2 in the A figure of the A figure;

[0025] Figure 4 is the structure perspective view of the present application Figure 2 in the B figure of the B figure.

[0026] In the drawing: 1, the main body of the lifting arm; 101, the main arm; 102, the intermediate arm; 103, the end arm; 104, the strip-shaped slot; 105, the inclined surface notch; 2, the intermediate arm anti-falling locking assembly; 201, the fixed block; 202, the large hydraulic rod; 203, the first inclined surface opening; 204, the second inclined surface opening; 205, the first clamping block; 3, the top end anti-falling locking assembly; 301, the small hydraulic rod; 302, the second clamping block. DETAILED DESCRIPTION

[0027] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 4 This application provides a crane boom anti-detachment locking structure for a truck-mounted crane, including a boom body 1. The boom body 1 includes a main boom 101, and a middle boom 102 is movably connected to the left end of the main boom 101. Middle boom anti-detachment locking components 2 are provided on both sides of the main boom 101. Each middle boom anti-detachment locking component 2 includes two fixing blocks 201, and the front surface of each fixing block 201 is fixedly connected to the end of a large hydraulic rod 202. A first locking block 205 is fixedly connected to the output end of the large hydraulic rod 202. The fixing blocks 201 are fixedly connected to the side surface of the main boom 101. A first inclined opening 203 is provided on the left side surface of the main boom 101, and the first locking block 205 is movably connected to the side surface of the first inclined opening 203.

[0030] In this embodiment, after the main boom 1 is extended, the main boom 101, intermediate boom 102 and end boom 103 are fully extended and the second inclined opening 204 and inclined notch 105 are exposed, the large hydraulic rod 202 and the small hydraulic rod 301 are extended so that the side surfaces of the first locking block 205 and the second locking block 302 abut against the right angle of the inner wall of the second inclined opening 204 and the inclined notch 105.

[0031] Reference Figures 1 to 4 In one aspect of this embodiment, a second inclined opening 204 is provided on the right side surface of the intermediate arm 102, and the first locking block 205 is movably connected to the side surface of the second inclined opening 204.

[0032] In this embodiment, the first locking block 205 moves on the inclined surface of the second inclined opening 204 as the large hydraulic rod 202 extends and retracts, and the inclined surfaces of the first inclined opening 203 and the second inclined opening 204 are on the same plane.

[0033] Reference Figures 1 to 4In one aspect of this embodiment, the left end of the intermediate arm 102 is movably connected to the end arm 103, and the right end side surface of the end arm 103 is provided with a beveled notch 105, and the two side surfaces of the left end of the intermediate arm 102 are provided with strip grooves 104.

[0034] In this embodiment, after the small hydraulic rod 301 is fully closed, the second locking block 302 will be completely hidden in the strip slot 104.

[0035] Reference Figures 1 to 4 In one aspect of this embodiment, a top anti-detachment locking component 3 is provided inside the strip slot 104. The top anti-detachment locking component 3 includes a small hydraulic rod 301, the end of which is fixedly connected to the inner wall of the strip slot 104.

[0036] In this embodiment, the inclined surface of the second locking block 302 of the extended small hydraulic rod 301 will slide from the inner wall of the strip slot 104 to the inclined surface of the inclined notch 105. When the small hydraulic rod 301 is fully extended, the left side surface of the second locking block 302 will abut against the inner wall of the inclined notch 105.

[0037] Reference Figures 1 to 4 In one aspect of this embodiment, the output end of the small hydraulic rod 301 is fixedly connected to a second locking block 302, and the inclined surface of the second locking block 302 is movably connected to the inclined surface notch 105.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] Working principle: When the main body of the boom 1 needs to be retracted, the large hydraulic rod 202 and the small hydraulic rod 301 must be completely retracted first. Then the first locking block 205 and the second locking block 302 will move back, and the main body of the boom 1 can be retracted.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crane boom anti-derailment locking structure for a truck-mounted crane, comprising a boom body (1), characterized in that: The main body (1) of the boom includes a main boom (101), and a middle boom (102) is movably connected to the left end of the main boom (101). Both sides of the main boom (101) are provided with middle boom anti-detachment locking components (2). The middle boom anti-detachment locking components (2) include fixing blocks (201). There are two fixing blocks (201), and the front surface of the two fixing blocks (201) is fixedly connected to the end of a large hydraulic rod (202). The output end of the large hydraulic rod (202) is fixedly connected to a first locking block (205). The fixing blocks (201) are fixedly connected to the side surface of the main boom (101).

2. The anti-derailment locking structure for the boom of a truck-mounted crane as described in claim 1, characterized in that: The left end side surface of the main arm (101) is provided with a first inclined opening (203), and the first locking block (205) is movably connected to the side surface of the first inclined opening (203).

3. The anti-derailment locking structure for the boom of a truck-mounted crane as described in claim 1, characterized in that: The right side surface of the intermediate arm (102) is provided with a second inclined opening (204), and the inclined surface of the first locking block (205) is movably connected to the side surface of the second inclined opening (204).

4. The anti-derailment locking structure for the boom of a truck-mounted crane as described in claim 3, characterized in that: The left end of the intermediate arm (102) is movably connected to the end arm (103), and the right end side surface of the end arm (103) is provided with a beveled notch (105). The two side surfaces of the left end of the intermediate arm (102) are provided with strip grooves (104).

5. The anti-derailment locking structure for the boom of a truck-mounted crane as described in claim 4, characterized in that: The strip-shaped slot (104) is provided with a top anti-detachment locking component (3), which includes a small hydraulic rod (301) whose end is fixedly connected to the inner wall of the strip-shaped slot (104).

6. The anti-derailment locking structure for the boom of a truck-mounted crane as described in claim 5, characterized in that: The output end of the small hydraulic rod (301) is fixedly connected to a second locking block (302), and the inclined surface of the second locking block (302) is movably connected to the inclined surface notch (105).

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