A detachable cab for an excavator
By designing a detachable excavator cab structure, the problems of traditional excavator cabs in terms of accessibility in narrow working conditions and high maintenance costs are solved, and flexibility in replacing individual parts and operating in low-ceilinged spaces is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO LOVOL EXCAVATOR
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional excavator cabs have a fixed and non-adjustable structure, which limits the equipment's mobility in narrow working conditions, and requires complete disassembly and replacement when damaged, increasing maintenance costs.
Design a detachable cab that allows for individual replacement of damaged parts and enables quick disassembly and maintenance through bolted connections between the front mounting bracket, rear mounting bracket, and roof bracket.
It meets the requirements for low-ceilinged operation, reduces maintenance costs, and improves the flexibility and safety of the equipment.
Smart Images

Figure CN224351307U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of excavator technology, and in particular relates to a detachable cab for excavators. Background Technology
[0002] For mini excavators (working weight between 1 and 6 tons), the cab serves as the core protection and working space for the operator, and its design directly affects the safety, comfort, and operating efficiency of the equipment.
[0003] Traditional cabs mostly use a fixed metal frame and a simple roof structure. This structure is fixed and cannot be adjusted, which can restrict the passage of equipment in narrow working conditions. Although turning over during transportation can solve some of the transportation problems caused by excessive height, it requires more transportation space, and the cab is prone to rotation during transportation, which can cause damage to the cab.
[0004] Furthermore, when the cab is damaged, the entire cab usually needs to be disassembled and replaced, resulting in high maintenance costs. Utility Model Content
[0005] In view of the defects or deficiencies in the existing technology, this utility model provides a detachable cab for excavators, which can realize the separate disassembly of the cab, not only meeting the operation requirements of low space, but also allowing damaged parts to be replaced individually, thus reducing the cost of use and maintenance.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An embodiment of this utility model provides a detachable cab for an excavator, including a front mounting bracket and a rear mounting bracket. The front mounting bracket is fixed to the front of the cab by bolts, and the rear mounting bracket is fixed to the rear of the cab by bolts. The front mounting bracket and the rear mounting bracket are connected by a canopy roof bracket. The front mounting bracket and the canopy roof bracket, as well as the rear mounting bracket and the canopy roof bracket, are all fixedly connected by bolts. The top of the canopy roof bracket is bolted to the canopy roof.
[0008] Furthermore, the front mounting bracket includes two parallel support rods, with a set distance between the two support rods, and the middle of the two support rods are connected by two parallel first fixing rods, and the two first fixing rods are connected by two parallel second fixing rods.
[0009] Furthermore, the bottom ends of the two support rods are connected by a front mounting bracket. The two ends of the front mounting bracket are welded and fixed to the bottom ends of the two support rods respectively. The front mounting bracket has multiple bolt holes, and the front support rods are fixed to the front side of the cab by bolts.
[0010] Furthermore, each of the two support rods is provided with a first connecting plate at its top. The first connecting plate is circular, and its diameter is larger than the end face diameter of the support rod. The axis of the first connecting plate coincides with the axis of the support rod.
[0011] Furthermore, the first connecting plate has multiple bolt holes, which are evenly arranged along the outer edge of the first connecting plate, and are fixedly connected to the roof support by bolts.
[0012] Furthermore, the canopy support includes two parallel connecting rods, and a second connecting plate is provided at one end of the connecting rod near the support rod. The second connecting plate is provided with a plurality of bolt holes evenly distributed, and the plurality of bolt holes on the second connecting plate are provided in correspondence with the plurality of bolt holes on the first connecting plate.
[0013] Furthermore, a third connecting plate is fixed on the end face of the connecting rod near the rear mounting bracket. The third connecting plate has multiple bolt holes, which are evenly arranged along the outer edge of the third connecting plate, and the bolts are used to achieve a fixed connection with the rear mounting bracket.
[0014] Furthermore, both ends of the rear mounting bracket are provided with a fourth connecting plate, and the fourth connecting plate has multiple bolt holes, which are corresponding to the bolt holes on the third connecting plate.
[0015] Furthermore, a rear mounting seat is provided in the middle of the bottom surface of the rear mounting bracket, and bolt holes are provided on the rear mounting seat to fix the rear mounting bracket to the rear side of the cab by bolts.
[0016] Furthermore, two horizontal beams are arranged parallel to each other at the bottom of the canopy, and the two horizontal beams are arranged perpendicularly to the two connecting rods.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. This utility model sets the driver's cab as a front mounting bracket, a rear mounting bracket, and a roof bracket, and the front mounting bracket, the rear mounting bracket, and the roof bracket are connected by bolts. When any part of the front mounting bracket, the rear mounting bracket, and the roof bracket is damaged, the single part can be replaced by removing the bolts, without having to replace the entire driver's cab, thus reducing the cost of use and maintenance.
[0019] 2. This utility model connects the roof support to the front mounting bracket via a first connecting plate and a second connecting plate, and to the rear mounting bracket via a third connecting plate and a fourth connecting plate. When the excavator needs to operate in a low-ceilinged space, the roof support 3 can be quickly dismantled by removing the first and second connecting plates, as well as the bolts between the second and third connecting plates, to meet the requirements for low-ceilinged operation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the driver's shed structure in an embodiment of this utility model;
[0021] Figure 2 This is a diagram showing the connection relationship between the front mounting bracket, the rear mounting bracket, and the roof support in an embodiment of this utility model.
[0022] Figure 3 This is a schematic diagram of the canopy structure in an embodiment of the present utility model;
[0023] Figure 4 for Figure 2 Enlarged view of point A in the middle;
[0024] The components are: 1. Front mounting bracket; 2. Rear mounting bracket; 3. Canopy bracket; 4. Canopy; 5. Support rod; 6. First fixing rod; 7. Second fixing rod; 8. Front mounting seat; 9. First connecting plate; 10. Connecting rod; 11. Second connecting plate; 12. Third connecting plate; 13. Fourth connecting plate; 14. Rear mounting seat; 15. Crossbeam. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0026] A typical embodiment of this utility model is as follows: Figure 1 As shown, a detachable cab for an excavator includes a front mounting bracket 1 and a rear mounting bracket 2. The front mounting bracket 1 is fixed to the front of the cab by bolts, and the rear mounting bracket 2 is fixed to the rear of the cab by bolts. The front mounting bracket 1 and the rear mounting bracket 2 are connected by a canopy bracket 3. The front mounting bracket 1 and the canopy bracket 3, as well as the rear mounting bracket 2 and the canopy bracket 3, are all fixedly connected by bolts. The top of the canopy bracket 3 is connected to a canopy roof 4 by bolts.
[0027] Specifically, such as Figure 2 As shown, the front mounting bracket 1 includes two parallel support rods 5, with a set distance between them. The support rods 5 are straight round tubes. The two support rods 5 are connected in the middle by a first fixing rod 6. There are two first fixing rods 6, which are arranged in parallel. The two ends of the first fixing rod 6 are welded and fixed to the two support rods 5 respectively. There are two second fixing rods 7 in the middle of the two first fixing rods 6, which are arranged in parallel. By setting the first fixing rod 6 and the second fixing rod 7 between the two support rods 5, the structural strength of the front mounting bracket 1 can be improved.
[0028] The bottom ends of the two support rods 5 are connected by the front mounting base 8. The front mounting base 8 is a straight plate structure. The two ends of the front mounting base 8 are welded and fixed to the bottom ends of the two support rods 5 respectively. The front mounting base 8 has multiple bolt holes, and the front mounting bracket 1 can be fixed to the front side of the cab by bolts, thereby protecting the front side of the cab.
[0029] Both support rods 5 are provided with a first connecting plate 9 at their top ends. The first connecting plate 9 is circular and its diameter is larger than the end face diameter of the support rod 5. The axis of the first connecting plate 9 coincides with the axis of the support rod 5. Multiple bolt holes are provided on the first connecting plate 9 and are evenly arranged along the outer edge of the first connecting plate 9. The bolt holes can be used to fix the connection with the canopy bracket 3.
[0030] By setting front mounting bases 8 and first connecting plates 9 at both ends of the front mounting bracket 1, it can be connected to the excavator and the canopy bracket 3 respectively by bolts. When the front mounting bracket 1 is damaged during use, it can be replaced by removing the bolts at both ends, without having to replace the entire cab, thus reducing the cost of use and maintenance.
[0031] The roof support 3 includes two parallel connecting rods 10, each U-shaped and formed by bending a round tube. The two connecting rods 10 correspond to two support rods 5. A second connecting plate 11, circular in shape, is provided at the end of each connecting rod 10 closest to one of the support rods 5. Figure 4 As shown, the diameter of the second connecting plate 11 is the same as that of the first connecting plate 9. Multiple bolt holes are evenly provided on the second connecting plate 11, and the multiple bolt holes on the second connecting plate 11 are corresponding to the multiple bolt holes on the first connecting plate 9, so that the front mounting bracket 1 and the canopy bracket 3 are fixedly connected by bolts.
[0032] A third connecting plate 12 is fixed on the end face of the connecting rod 10 near the rear mounting bracket 2. The third connecting plate 12 is circular and its diameter is the same as that of the second connecting plate 11. Multiple bolt holes are provided on the third connecting plate 12 and are evenly arranged along the outer edge of the third connecting plate 12. The bolt holes can be used to achieve a fixed connection with the rear mounting bracket 2.
[0033] By setting a second connecting plate 11 and a third connecting plate 12 at both ends of the roof support 3, it can be fixedly connected to the front mounting bracket 1 and the rear mounting bracket 2 respectively by bolts, thereby protecting the top of the cab. When the excavator needs to operate in a low space, the roof support 3 can be disassembled by removing the bolts at both ends of the roof support 3 to meet the requirements for low space operation. At the same time, when the roof support 3 is damaged during use, it can be replaced by removing the bolts at both ends of the roof support 3, without having to replace the entire cab, thus reducing the cost of use and maintenance.
[0034] The rear mounting bracket 2 is U-shaped and is formed by bending a round tube. Both ends of the rear mounting bracket 2 are respectively set with two connecting rods 10. Both ends of the rear mounting bracket 2 are provided with a fourth connecting plate 13. The fourth connecting plate 13 is circular and its diameter is the same as that of the third connecting plate 12. Multiple bolt holes are opened on the fourth connecting plate 13, and the bolt holes on the fourth connecting plate 13 are set with the bolt holes on the third connecting plate 12, so that the rear mounting bracket 2 and the canopy bracket 3 are fixedly connected by bolts.
[0035] A rear mounting base 14 is provided in the middle of the bottom surface of the rear mounting bracket 2. The rear mounting base 14 includes two symmetrically arranged fixing plates. The longitudinal section of the fixing plate is circular. One end of the fixing plate is welded and fixed to the rear mounting bracket 2, and the other end is provided with bolt holes. The rear mounting bracket 2 is fixed to the rear side of the cab by bolts, thereby protecting the rear side of the cab.
[0036] By setting rear mounting bases 14 and fourth connecting plates 13 at both ends of the rear mounting bracket 2, it can be connected to the excavator and the canopy bracket 3 respectively by bolts. When the rear mounting bracket 2 is damaged during use, it can be replaced by removing the bolts at both ends, without having to replace the entire cab, thus reducing the cost of use and maintenance.
[0037] like Figure 3 As shown, the canopy 4 is made of stamped steel plate, which has high impact resistance and can effectively protect the area above the cab. There are two crossbeams 15 at the bottom of the canopy 4. The two crossbeams 15 are arranged in parallel. By setting the crossbeams 15, the impact resistance of the canopy is further improved. The two crossbeams 15 are perpendicular to the two connecting rods 10. Through holes are opened at the bottom of the crossbeams 15 and at the corresponding positions of the connecting rods 10. Nuts are welded in the through holes. Bolt holes are opened at the corresponding positions of the connecting rods 10 and the crossbeams 15. The bolt holes are arranged in correspondence with the through holes. The canopy 4 and the canopy support 3 are fixedly connected by bolts.
[0038] This utility model sets up a driver's cab with a front mounting bracket, a rear mounting bracket, and a roof bracket, and the front mounting bracket, rear mounting bracket, and roof bracket are connected by bolts. When any part of the front mounting bracket, rear mounting bracket, or roof bracket is damaged, the single part can be replaced by removing the bolts, without having to replace the entire driver's cab, thus reducing the cost of use and maintenance.
[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A detachable cab for an excavator, characterized in that, It includes a front mounting bracket and a rear mounting bracket. The front mounting bracket is fixed to the front of the cab with bolts, and the rear mounting bracket is fixed to the rear of the cab with bolts. The front mounting bracket and the rear mounting bracket are connected by a canopy bracket. The front mounting bracket and the canopy bracket, as well as the rear mounting bracket and the canopy bracket, are fixedly connected by bolts. The top of the canopy bracket is connected to a canopy with bolts.
2. The detachable cab for an excavator as described in claim 1, characterized in that, The front mounting bracket includes two parallel support rods with a set distance between them. The two support rods are connected in the middle by two parallel first fixing rods, and the two first fixing rods are connected by two parallel second fixing rods.
3. A detachable cab for an excavator as described in claim 2, characterized in that, The bottom ends of the two support rods are connected by a front mounting base. The two ends of the front mounting base are welded and fixed to the bottom ends of the two support rods respectively. The front mounting base has multiple bolt holes, and the front support rods are fixed to the front side of the cab by bolts.
4. A detachable cab for an excavator as described in claim 2, characterized in that, Both support rods are provided with a first connecting plate at their top ends. The first connecting plate is circular, and its diameter is larger than the end face diameter of the support rod. The axis of the first connecting plate coincides with the axis of the support rod.
5. A detachable cab for an excavator as described in claim 4, characterized in that, The first connecting plate has multiple bolt holes, which are evenly arranged along the outer edge of the first connecting plate, and are fixedly connected to the roof support by bolts.
6. A detachable cab for an excavator as described in claim 5, characterized in that, The canopy support includes two parallel connecting rods. A second connecting plate is provided at one end of the connecting rod near the support rod. Multiple bolt holes are evenly provided on the second connecting plate, and the multiple bolt holes on the second connecting plate are corresponding to the multiple bolt holes on the first connecting plate.
7. A detachable cab for an excavator as described in claim 6, characterized in that, A third connecting plate is fixed to the end face of the connecting rod near the rear mounting bracket. The third connecting plate has multiple bolt holes, which are evenly arranged along the outer edge of the third connecting plate. The bolts are used to achieve a fixed connection with the rear mounting bracket.
8. A detachable cab for an excavator as described in claim 7, characterized in that, Both ends of the rear mounting bracket are provided with a fourth connecting plate, and multiple bolt holes are provided on the fourth connecting plate, which correspond to the bolt holes on the third connecting plate.
9. A detachable cab for an excavator as described in claim 1, characterized in that, A rear mounting seat is provided in the middle of the bottom surface of the rear mounting bracket, and bolt holes are provided on the rear mounting seat. The rear mounting bracket is fixed to the rear side of the cab by bolts.
10. A detachable cab for an excavator as described in claim 6, characterized in that, Two horizontal beams are arranged parallel to each other at the bottom of the canopy, and the two horizontal beams are arranged perpendicularly to the two connecting rods.