Special rear supporting leg for engineering truck
By integrating and connecting multiple components into a special rear outrigger for engineering vehicles, the problems of poor overall vehicle balance and low space utilization caused by the simple structure of the rear outrigger of the wet spraying trolley have been solved, achieving higher stability and space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN GENGLI ENG EQUIP CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-05
AI Technical Summary
The existing wet spraying trolley has a simple rear outrigger structure, resulting in poor overall balance, easy tipping over, and low space utilization.
Design a special rear outrigger for engineering vehicles. Through the integrated connection of multiple components, including the outrigger sleeve body, robotic arm bracket seat, roller fixing plate, hopper seat and rear light frame, etc., it is connected to the corresponding parts of the wet spraying trolley to form an integrated structure that is easy to weld and lightweight.
It improves the space utilization of the wet spraying trolley, enhances the stability of the whole vehicle, and reduces the risk of rollover.
Smart Images

Figure CN224197734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary accessories technology for engineering vehicles, and in particular to a special rear outrigger for engineering vehicles. Background Technology
[0002] With the vigorous promotion of highways and roads, tunnel construction is also developing rapidly. Wet spraying trolleys are an important part of tunnel construction. The internal space of tunnels is limited and the road surface is full of gravel and uneven. Currently, the rear outriggers of wet spraying trolleys are raised vertically, which makes it difficult to maintain the balance of the vehicle after being raised. When the vehicle is unbalanced, it is easy to cause the vehicle to overturn. In addition, the current rear outrigger structure is simple and has little auxiliary function. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a special rear outrigger for engineering vehicles. Its structure is easy to weld, lightweight, and reliable. By installing multiple parts together, it reduces the space occupied and improves the space utilization rate, which can effectively solve the problems in the background art.
[0004] To achieve the aforementioned objective, this utility model adopts the following technical solution:
[0005] A special rear outrigger for engineering vehicles includes a rear outrigger crossbeam, with outrigger sleeves symmetrically fixed on the left and right sides of the rear outrigger crossbeam, a rear outrigger top plate fixed on the top of the outrigger sleeve, a mechanical arm bracket seat fixed on the top of the rear outrigger top plate, and a rear outrigger rear plate fixed on the side of the outrigger sleeve.
[0006] Furthermore, it also includes a rear outrigger outer sealing plate, which is fixed to the side of the outrigger sleeve body.
[0007] Furthermore, it also includes a pumping button housing, which is fixed to the inner side of the outer sealing plate of the rear outrigger.
[0008] Furthermore, it also includes roller fixing plates, of which two are provided, and the two roller fixing plates are fixed to the side of the rear support leg plate near the top position.
[0009] Furthermore, it also includes hopper seats, of which two hopper seats are fixed on the left and right sides of the opening in the middle of the rear plate of the rear support leg.
[0010] Furthermore, it also includes a left rear light bracket and a right rear light bracket, which are fixed to the side of the rear plate of the rear outrigger near the bottom.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This special rear outrigger for engineering vehicles has the following advantages: it is connected to the outrigger cylinder on the wet spraying trolley through the outrigger sleeve body, installed on the mechanical arm bracket on the wet spraying trolley through the mechanical arm bracket seat, connected to the cable roller on the wet spraying trolley through the roller fixing plate, connected to the pumping system assembly on the wet spraying trolley through the hopper seat, connected to the rear taillight on the wet spraying trolley through the rear light bracket, and connected to the four-hole button box on the wet spraying trolley through the pumping button box seat. Its structure is easy to weld, lightweight, and reliable. By installing multiple parts together, it reduces the space occupied and improves the space utilization rate. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle.
[0014] In the diagram: 1-Rear support leg outer sealing plate, 2-Idler roller fixing plate, 3-Rear support leg top plate, 4-Mechanical arm bracket seat, 5-Rear support leg rear plate, 6-Right rear light frame, 7-Hopper seat, 8-Left rear light frame, 9-Pumping button box seat, 10-Support leg sleeve body, 11-Rear support leg crossbeam. Detailed Implementation
[0015] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.
[0016] Please see Figure 1-2 This embodiment provides a technical solution: a special rear outrigger for engineering vehicles, including a rear outrigger crossbeam 11, outrigger sleeves 10 symmetrically fixed on the left and right sides of the rear outrigger crossbeam 11, a rear outrigger top plate 3 fixed on the top of the outrigger sleeve 10, a mechanical arm bracket seat 4 fixed on the top of the rear outrigger top plate 3, and a rear outrigger rear plate 5 fixed on the side of the outrigger sleeve 10.
[0017] It also includes a rear outrigger outer sealing plate 1, which is fixed to the side of the outrigger sleeve body 10; a pumping button box seat 9, which is fixed to the inside of the rear outrigger outer sealing plate 1; a roller fixing plate 2, of which there are two, which are fixed to the side of the rear outrigger rear plate 5 near the top; a hopper seat 7, of which there are two, which are fixed to the left and right sides of the opening in the middle of the rear outrigger rear plate 5; and a left rear light bracket 8 and a right rear light bracket 6, which are fixed to the side of the rear outrigger rear plate 5 near the bottom.
[0018] It is connected to the outrigger cylinder on the wet spraying trolley via the outrigger sleeve body 10, installed on the mechanical arm bracket on the wet spraying trolley via the mechanical arm bracket seat 4, connected to the cable roller on the wet spraying trolley via the roller fixing plate 2, connected to the pumping system assembly on the wet spraying trolley via the hopper seat 7, connected to the rear taillight on the wet spraying trolley via the rear light bracket, and connected to the four-hole button box on the wet spraying trolley via the pumping button box seat 9. Its structure is easy to weld, lightweight, and reliable. By installing multiple parts together, it reduces the space occupied and improves the space utilization rate.
[0019] The working principle of the special rear outrigger for engineering vehicles provided by this utility model is as follows: it is connected to the outrigger cylinder on the wet spraying trolley through the outrigger sleeve body 10, installed on the mechanical arm bracket on the wet spraying trolley through the mechanical arm bracket seat 4, connected to the cable roller on the wet spraying trolley through the roller fixing plate 2, connected to the pumping system assembly on the wet spraying trolley through the hopper seat 7, connected to the rear taillight on the wet spraying trolley through the rear light bracket, and connected to the four-hole button box on the wet spraying trolley through the pumping button box seat 9.
[0020] It is worth noting that the components disclosed in the above embodiments are all general standard parts or parts known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. For example, a rotary connection can refer to a rotary connection through a bearing.
[0022] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.
Claims
1. A special rear outrigger for engineering vehicles, comprising a rear outrigger crossbeam (11), characterized in that: The left and right sides of the rear outrigger crossbeam (11) are symmetrically fixed with outrigger sleeve bodies (10), the top of the outrigger sleeve body (10) is fixed with a rear outrigger top plate (3), the top of the rear outrigger top plate (3) is fixed with a mechanical arm bracket seat (4), and the side of the outrigger sleeve body (10) is fixed with a rear outrigger rear plate (5).
2. The rear outrigger for engineering vehicles according to claim 1, characterized in that: It also includes a rear outrigger outer sealing plate (1), which is fixed to the side of the outrigger sleeve body (10).
3. The rear outrigger for engineering vehicles according to claim 2, characterized in that: It also includes a pumping button box holder (9), which is fixed to the inner side of the rear outrigger outer sealing plate (1).
4. The rear outrigger for engineering vehicles according to claim 1, characterized in that: It also includes roller fixing plates (2), two roller fixing plates (2) are provided, and the two roller fixing plates (2) are fixed on the side of the rear support leg rear plate (5) near the top position.
5. A special rear outrigger for engineering vehicles according to claim 1, characterized in that: It also includes a hopper seat (7), of which two hopper seats (7) are fixed on the left and right sides of the opening in the middle of the rear support leg rear plate (5).
6. The rear outrigger for engineering vehicles according to claim 1, characterized in that: It also includes a left rear light bracket (8) and a right rear light bracket (6), which are fixed to the side of the rear support leg plate (5) near the bottom.