Novel folding arm type lorry-mounted crane

Abstract

The novel folding arm type lorry-mounted crane comprises a folding arm body and a fixing seat, the bottom end of the folding arm body is fixedly connected with a supporting seat, a containing groove is formed in the fixing seat, the outer wall of the supporting seat is connected with the inner wall of the containing groove in a sliding mode, a limiting opening is formed in the upper surface of the fixing seat, and the supporting seat is connected with the limiting opening in a sliding mode. Two second insertion holes are symmetrically formed in the upper surface of the supporting base, first insertion holes corresponding to the second insertion holes in position are formed in the fixing base, and limiting mechanisms matched with the second insertion holes and the first insertion holes are arranged above the first insertion holes. Through the arrangement of the fixing base, the supporting base, the limiting mechanism and the pulley, locking of the fixing base and the supporting base is completed, the installation steps are simple, and the installation efficiency is improved; by arranging the fixing block and the sliding block, the inserting bolt is pulled upwards until the inserting bolt is separated from the first inserting hole, then the sliding block slides towards the other side, limiting on the supporting base is relieved, operation is easy, operation can be achieved by one person, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane equipment, in particular to a novel folding arm type truck-mounted crane. Background Art

[0002] At present, my country's truck cranes are in the development stage, with fewer varieties. At present, according to their different structural forms, they are mainly divided into two types: straight-arm truck cranes and folding-arm truck cranes. The folding-arm structure is one of the common structural forms of truck cranes. The mechanical structure of the folding-arm truck crane mainly includes the base assembly, slewing drive, column, boom assembly, arm assembly and hook assembly; the hydraulic system mainly includes the boom cylinder, boom cylinder, telescopic cylinder, slewing motor, hydraulic winch, electro-hydraulic proportional reversing valve and balance valve. Among them, the boom assembly, boom assembly, boom cylinder and boom cylinder together constitute the luffing mechanism of the crane.

[0003] The existing steps of disassembling and assembling the folding arm and the vehicle body are relatively complicated, making it difficult to repair the folding arm, thus affecting the maintenance efficiency. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a new type of folding arm truck crane, which is provided with a fixed seat, a support seat, a limit mechanism, and a pulley, and slides the slider until the plug corresponds to the first socket, and the contraction of the spring drives the plug to be inserted into the first socket and the second socket, thereby completing the locking of the fixed seat and the support seat, and the installation steps are simple, thereby improving the installation efficiency; through the provided fixed block and slider, the plug is pulled upward until it is disengaged from the first socket, and then the slider is slid to the other side, and the bottom end of the slide groove blocks the bottom end of the plug, thereby releasing the limit on the support seat, and the operation is simple, and can be operated by one person, thereby improving the maintenance efficiency.

[0005] One of the purposes of the utility model is achieved by the following technical solution: a novel folding arm truck crane, comprising: a folding arm body, a fixing seat, the bottom end of the folding arm body is fixedly connected to a support seat, a storage groove is provided inside the fixing seat, the outer wall of the support seat is slidably connected to the inner wall of the storage groove, a limited opening is provided on the upper surface of the fixing seat, two plug holes 2 are symmetrically provided on the upper surface of the support seat, a plug hole 1 corresponding to the position of the plug hole 2 is provided on the fixing seat, and a limiting mechanism cooperating with the plug hole 2 and the plug hole 1 is provided above the plug hole 1;

[0006] The limiting mechanism comprises a fixed block fixedly connected to the surface of the fixed seat, a sliding groove is provided on the fixed block, a slider is slidably connected to the inner wall of the sliding groove, a spring is fixedly connected to the upper surface of the slider, a plug is fixedly connected to the top of the spring, the bottom end of the plug passes through the bottom end of the slider, a through hole is provided at the bottom end of the fixed block, and the through hole corresponds to the position of the first socket. Through the provided fixed seat, support seat, limiting mechanism, and pulley, the slider is slid until the plug corresponds to the first socket, and the spring contracts to drive the plug to be inserted into the first socket and the second socket, completing the locking of the fixed seat and the support seat, the installation steps are simple, and the installation efficiency is improved; through the provided fixed block and slider, the plug is pulled upward until it is disengaged from the first socket, and then the slider is slid to the other side, the bottom end of the sliding groove blocks the bottom end of the plug, and the limit of the support seat is released, the operation is simple, and one person can operate it, improving the maintenance efficiency.

[0007] Four pulleys are evenly installed at the bottom end of the support seat, which is convenient for the support seat to be moved and installed.

[0008] The inner wall of the limiting opening is in contact with the outer wall of the folding arm body.

[0009] The fixing seat is fixedly mounted on the external vehicle body.

[0010] The bottom end of the storage slot opening is provided with an inclined surface to facilitate the pulley to slide in.

[0011] The length of the sliding groove is greater than the length of the sliding block.

[0012] A pull ring is provided on the top of the plug.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional diagram of a novel folding arm type truck-mounted crane.

[0015] Figure 2 This is a partial three-dimensional view of a new type of folding arm truck crane in the utility model. Figure 1 .

[0016] Figure 3 This is a partial three-dimensional view of a new type of folding arm truck crane in the utility model. Figure 2 .

[0017] Figure 4 It is a three-dimensional diagram of a fixing seat and a limiting mechanism of a new type of folding arm truck crane of the utility model.

[0018] Legend:

[0019] 1. Folding arm body; 2. Fixed seat; 3. Support seat; 4. Limiting mechanism; 5. Pulley; 201. Storage slot; 202. Limiting opening; 203. Socket one; 301. Socket two; 401. Fixed block; 402. Slide slot; 403. Sliding block; 404. Spring; 405. Plug. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-4 The utility model embodiment is a novel folding arm type truck crane, which includes: a folding arm body 1, a fixed seat 2, the bottom end of the folding arm body 1 is fixedly connected to a support seat 3, and four pulleys 5 are evenly installed at the bottom end of the support seat 3, which is convenient for the support seat 3 to be moved and installed, and a storage groove 201 is provided inside the fixed seat 2, and a slope is provided at the bottom end of the opening of the storage groove 201, which is convenient for the pulley 5 to slide in, and the outer wall of the support seat 3 is slidably connected with the inner wall of the storage groove 201, and the fixed seat 2 is fixedly installed and fixed to the external vehicle body, and a limited opening 202 is provided on the upper surface of the fixed seat 2, and the inner wall of the limited opening 202 is in contact with the outer wall of the folding arm body 1, and two second plug holes 301 are symmetrically provided on the upper surface of the support seat 3, and a plug hole 1 203 corresponding to the position of the plug hole 2 301 is provided on the fixed seat 2, and a limiting mechanism 4 cooperating with the plug hole 2 301 and the plug hole 1 203 is provided above the plug hole 1 203;

[0022] The limiting mechanism 4 includes a fixed block 401 fixedly connected to the surface of the fixed seat 2, a sliding groove 402 is provided on the fixed block 401, a slider 403 is slidably connected to the inner wall of the sliding groove 402, the length of the sliding groove 402 is greater than the length of the slider 403, a spring 404 is fixedly connected to the upper surface of the slider 403, a plug 405 is fixedly connected to the top of the spring 404, a pull ring is provided on the top of the plug 405, the bottom end of the plug 405 passes through the bottom end of the slider 403, a through hole is provided at the bottom end of the fixed block 401, and the through hole corresponds to the position of the socket 203. By means of the fixed seat 2, the support seat 3, the limiting mechanism 4 and the pulley 5, when the folding arm body 1 and the fixed seat 2 are installed, the support seat 3 is slid into the receiving groove 201 of the fixed seat 2 by using the pulley 5, and the limiting opening 202 limits the outer wall of the bottom end of the folding arm body 1, and at the same time, the first plug 203 overlaps with the second plug 301, and at this time, the sliding block 403 is slid until the plug 405 corresponds to the first plug 203, and the spring 404 contracts to drive the plug 405 to insert into the first plug 203 and the second plug 2. 301, the locking of the fixing seat 2 and the supporting seat 3 is completed, the installation steps are simple, and the installation efficiency is improved; through the set fixing block 401 and the slider 403, when the folding arm body 1 is separated from the fixing seat 2, the plug 405 is pulled upward until it is disengaged from the socket 203, and then the slider 403 is slid to the other side, and the bottom end of the slide groove 402 blocks the bottom end of the plug 405, thereby releasing the limit on the supporting seat 3. The operation is simple and can be operated by one person, thereby improving the maintenance efficiency.

[0023] Working principle: when in use, when the folding arm body 1 and the fixed seat 2 are installed, the pulley 5 is used to slide the support seat 3 into the storage groove 201 of the fixed seat 2, and the limiting opening 202 limits the outer wall of the bottom end of the folding arm body 1. At the same time, the socket 1 203 overlaps with the socket 2 301. At this time, the slider 403 is slid until the plug 405 corresponds to the socket 1 203, and the spring 404 contracts to drive the plug 405 to be inserted into the socket 1 203 and the socket 2 301, completing the locking of the fixed seat 2 and the support seat 3. When the folding arm body 1 and the fixed seat 2 are separated, the plug 405 is pulled upward until it is disengaged from the socket 1 203, and then the slider 403 is slid to the other side. The bottom end of the slide groove 402 blocks the bottom end of the plug 405, and the limit on the support seat 3 is released. The operation is simple and can be operated by one person, thereby improving maintenance efficiency.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A new type of folding arm truck crane, comprising: A folding arm body (1) and a fixing seat (2), characterized in that a support seat (3) is fixedly connected to the bottom end of the folding arm body (1), a storage groove (201) is provided inside the fixing seat (2), an outer wall of the support seat (3) is slidably connected to the inner wall of the storage groove (201), a limiting opening (202) is provided on the upper surface of the fixing seat (2), two second plug holes (301) are symmetrically provided on the upper surface of the supporting seat (3), a first plug hole (203) corresponding to the position of the second plug hole (301) is provided on the fixing seat (2), and a limiting mechanism (4) cooperating with the second plug hole (301) and the first plug hole (203) is provided above the first plug hole (203); The limiting mechanism (4) comprises a fixed block (401) fixedly connected to the surface of the fixed seat (2); a sliding groove (402) is provided on the fixed block (401); a sliding block (403) is slidably connected to the inner wall of the sliding groove (402); a spring (404) is fixedly connected to the upper surface of the sliding block (403); a plug (405) is fixedly connected to the top of the spring (404); the bottom end of the plug (405) passes through the bottom end of the sliding block (403); a through hole is provided at the bottom end of the fixed block (401), and the through hole corresponds to the position of the first plug hole (203).

2. A new type of folding arm truck crane according to claim 1, characterized in that: Four pulleys (5) are evenly mounted on the bottom end of the support seat (3).

3. The novel folding arm truck crane according to claim 1 is characterized in that: The inner wall of the limiting opening (202) fits into the outer wall of the folding arm body (1).

4. The novel folding arm truck crane according to claim 1 is characterized in that: The fixing seat (2) is fixedly mounted on the external vehicle body.

5. The novel folding arm truck crane according to claim 1 is characterized in that: The bottom end of the opening of the storage groove (201) is provided with an inclined surface.

6. The novel folding arm truck crane according to claim 1 is characterized in that: The length of the slide groove (402) is greater than the length of the slide block (403).

7. The novel folding arm truck crane according to claim 1 is characterized in that: A pull ring is provided at the top end of the plug (405).

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