Hand brake and foot brake integrated braking mechanism and tractor

Abstract

The utility model relates to the technical field of tractors, in particular to a hand brake and foot brake integrated braking mechanism and a tractor, which comprises a hand brake component, a foot brake component and a portal frame, and a portal frame vertical frame is fixedly arranged on the side surface of the portal frame; the foot brake assembly comprises a pedal arm, one end of the pedal arm is pivoted to the side face, facing the inner side of the cab, of the portal frame, a torsional spring is arranged between the pedal arm and the portal frame, a locking plate is fixedly arranged on the pedal arm, and a plurality of tooth grooves are formed in the locking plate. The hand brake assembly comprises a hand brake rod, the middle of the hand brake rod is connected with a vertical plate of the portal frame in a pivoted mode, a pawl is arranged at the end, facing the portal frame, of the hand brake rod, and an elastic reset mechanism is arranged on the vertical frame of the portal frame. The hand brake assembly has the advantages that the hand brake assembly is integrated beside the foot brake assembly, the hand brake installation space beside the driving position is liberated, the space arrangement of the driving position is optimized, the structure of the hand brake assembly is simplified, operation is more convenient, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a hand brake and foot brake integrated braking mechanism and a tractor. Background Art

[0002] The cockpit of small horsepower tractors has many joysticks and compact space. Figure 4 As shown, the braking device in the tractor cab generally includes a hand brake device 19 and a foot brake device 20. The hand brake device 19 and the foot brake device 20 are separately arranged. The foot brake device 20 is arranged at the bottom of the front end of the cab, and the hand brake device 19 is usually arranged next to the driving position 18. It is necessary to reserve space next to the driving position 18 during design, which affects the space of the driving position 18 and the activity space of the driver. At the same time, since the hand brake device 19 and the foot brake device 20 are at a certain distance, the setting structure of the hand brake device 19 is relatively complicated and the production cost is relatively high. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a hand brake and foot brake integrated braking mechanism and a tractor, so as to solve the above problems existing in the prior art.

[0004] The utility model solves the above-mentioned technical problems with a technical solution as follows: a handbrake and footbrake integrated braking mechanism, comprising a handbrake assembly, a footbrake assembly and a gantry frame connected to a vehicle body, a gantry frame upright frame being fixedly provided on the side of the gantry frame facing the inner side of the cab; the footbrake assembly comprises a pedal arm, one end of the pedal arm is pivotally connected to the side of the gantry frame facing the inner side of the cab, and a torsion spring is provided between the pedal arm and the gantry frame, a locking plate is fixedly provided on the pedal arm, and a plurality of tooth grooves are provided on the locking plate; the handbrake assembly comprises a handbrake lever, a middle portion of the handbrake lever is pivotally connected to the gantry frame upright frame, a ratchet extending toward the locking plate for cooperating with the tooth groove is provided on one end of the handbrake lever facing the gantry, and an elastic reset mechanism for driving the ratchet away from the tooth groove is provided on the gantry frame upright frame.

[0005] The beneficial effects of the utility model are: the handbrake assembly is integrated next to the footbrake assembly, thus freeing up the handbrake installation space next to the driver's seat, optimizing the spatial arrangement of the driver's seat, simplifying the structure of the handbrake assembly, making operation more convenient, and reducing costs.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a rotating shaft is fixedly provided on the side wall of the gantry frame, a handbrake cylinder is fixedly provided on the handbrake lever, and the handbrake cylinder is rotatably sleeved on the rotating shaft.

[0008] The beneficial effect of adopting the above further solution is that the handbrake lever is pivotally connected to the rotating shaft fixed to the side wall of the gantry through the handbrake cylinder, which has a simple structure and reduces costs.

[0009] Furthermore, a limiting ring groove is provided after the end of the rotating shaft away from the gantry stand extends out of the handbrake cylinder, and a retaining spring is sleeved in the limiting ring groove.

[0010] The beneficial effect of adopting the above further solution is that the provision of the retaining spring can effectively prevent the handbrake cylinder from being separated from the rotating shaft.

[0011] Furthermore, the elastic reset mechanism includes a tension spring, the upper end of which is connected to a side of the handbrake cylinder away from the ratchet, and the lower end of which is connected to the gantry stand below the rotating shaft.

[0012] The beneficial effect of adopting the above further solution is: the handbrake cylinder is pulled downward by the tension spring to rotate, so that the pawl can quickly return to its original position after being disengaged from the tooth groove, avoiding the pawl from interfering with the use of the pedal arm in the non-handbrake braking state.

[0013] Furthermore, it also includes a rotating shaft seat, which is detachably fixedly connected to the gantry frame via bolts, and one end of the rotating shaft is fixedly connected to the side of the rotating shaft seat away from the gantry frame.

[0014] The beneficial effect of adopting the above further solution is that the arrangement of the rotating shaft seat can facilitate the installation and disassembly of the rotating shaft.

[0015] Furthermore, a first connecting seat is provided at the bottom of the rotating shaft seat, a first connecting seat is provided with a first connecting hanging hole, a second connecting seat is fixedly provided on the side wall of the handbrake tube away from the ratchet, a second connecting seat is provided with a second connecting hanging hole, and hooks are fixedly provided at both ends of the tension spring, and the two hooks are respectively hung in the first connecting hanging hole and the second connecting hanging hole.

[0016] The beneficial effect of adopting the above further solution is that the installation of the tension spring is convenient.

[0017] Furthermore, the end of the handbrake lever away from the gantry is provided with a bent portion extending obliquely downward and in a direction away from the gantry, and a handbrake handle fixedly connected to the end of the bent portion away from the gantry.

[0018] The beneficial effect of adopting the above further solution is that the end of the handbrake lever away from the gantry is bent downward, which reduces the height of the handbrake handle, makes it easier for the driver to operate the handbrake lever, and better meets the driver's force angle requirements.

[0019] Furthermore, a pedal is fixedly provided at one end of the pedal arm away from the gantry, and an anti-skid component is provided on the upper surface of the pedal.

[0020] The beneficial effect of adopting the above further solution is that the provision of the anti-skid component can facilitate stepping on and drive the pedal arm to rotate, thereby avoiding slipping and improving safety.

[0021] Furthermore, the anti-skid component includes an anti-skid pad and / or an anti-skid protrusion.

[0022] The beneficial effect of adopting the above further solution is that both the anti-skid pad and the anti-skid protrusion can achieve a good anti-skid effect.

[0023] The utility model solves the above technical problem and further provides a tractor, comprising the above-mentioned hand brake and foot brake integrated braking mechanism.

[0024] The beneficial effects of adopting the above scheme are: integrating the handbrake assembly next to the footbrake assembly, freeing up the handbrake installation space next to the driver's seat, optimizing the spatial layout of the driver's seat, simplifying the structure of the handbrake assembly, making operation more convenient, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 For this utility model Figure 1 A local enlarged view of point A in FIG.

[0027] Figure 3 This is a schematic diagram of the assembly of the hand brake and foot brake integrated braking mechanism of the utility model in the tractor cab;

[0028] Figure 4 The present invention is a schematic diagram of assembling a hand brake device and a foot brake device in a tractor cab in the prior art.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Handbrake assembly; 101. Handbrake lever; 102. Handbrake cylinder; 103. Bending portion; 104. Handbrake handle; 2. Footbrake assembly; 201. Pedal arm; 202. Torsion spring; 203. Pedal; 204. Anti-skid assembly; 3. Gantry; 4. Gantry stand; 5. Locking plate; 6. Tooth groove; 7. Ratchet; 8. Rotating shaft; 9. Limiting ring groove; 10. Retaining spring; 11. Tension spring; 12. Rotating shaft seat; 13. First connecting seat; 14. First connecting hanging hole; 15. Second connecting seat; 16. Second connecting hanging hole; 17. Hook; 18. Driving position; 19. Handbrake device; 20. Footbrake device. DETAILED DESCRIPTION

[0031] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0032] Embodiment 1

[0033] like Figure 1 , Figure 2 As shown, the present embodiment discloses a handbrake and footbrake integrated braking mechanism, comprising a handbrake assembly 1, a footbrake assembly 2 and a gantry 3 for connecting to a vehicle body, a gantry stand 4 being fixedly provided on the side of the gantry 3 facing the inner side of the cab; the footbrake assembly 2 comprises a pedal arm 201, one end of the pedal arm 201 is pivotally connected to the side of the gantry 3 facing the inner side of the cab, and a torsion spring 202 is provided between the pedal arm 201 and the gantry 3, a locking plate 5 is fixedly provided on the pedal arm 201, and a plurality of tooth grooves 6 are provided on the locking plate 5; the handbrake assembly 1 comprises a handbrake lever 101, a middle portion of the handbrake lever 101 is pivotally connected to the gantry 3 stand, an end of the handbrake lever 101 facing the gantry 3 is provided with a ratchet 7 extending toward the locking plate 5 for cooperating with the tooth groove 6, and an elastic reset mechanism for driving the ratchet 7 away from the tooth groove 6 is provided on the gantry stand 4.

[0034] In this embodiment, a rotating shaft 8 is fixed on the side wall of the gantry frame 4, a handbrake cylinder 102 is fixed on the handbrake lever 101, and the handbrake cylinder 102 is rotatably sleeved on the rotating shaft 8. The handbrake lever 101 is pivotally connected to the rotating shaft 8 fixed on the side wall of the gantry 3 through the handbrake cylinder 102, which has a simple structure and reduces costs.

[0035] In this embodiment, in order to facilitate the driver's operation, the axis of the rotating shaft 8 is arranged horizontally, and the pawl 7 is arranged vertically above the locking plate 5.

[0036] Specifically, it also includes a rotating shaft seat 12, which is detachably fixedly connected to the gantry frame 4 by bolts, and one end of the rotating shaft 8 is fixedly connected to the side of the rotating shaft seat 12 away from the gantry frame 4. The setting of the rotating shaft seat 12 can facilitate the installation and disassembly of the rotating shaft 8.

[0037] In order to prevent the handbrake cylinder 102 from detaching from the rotating shaft 8, a limiting ring groove 9 is provided after the handbrake cylinder 102 extends out from the rotating shaft 8 at one end of the rotating shaft 8 away from the gantry frame 4, and a retaining spring 10 is sleeved in the limiting ring groove 9. The outer diameter of the retaining spring 10 is larger than the inner diameter of the handbrake cylinder 102, so that the retaining spring 10 forms a blockage for the handbrake cylinder 102 to prevent the handbrake cylinder 102 from detaching from the rotating shaft 8.

[0038] The elastic reset mechanism includes a tension spring 11, the upper end of which is connected to the side of the handbrake cylinder 102 away from the pawl 7, and the lower end of which is connected to the gantry frame stand 4 below the rotating shaft 8. Specifically, a first connecting seat 13 is provided at the bottom of the rotating shaft seat 12, and a first connecting hanging hole 14 is provided on the first connecting seat 13. A second connecting seat 15 is fixedly provided on the side wall of the handbrake cylinder 102 away from the pawl 7, and a second connecting hanging hole 16 is provided on the second connecting seat 15. Hooks 17 are fixedly provided at both ends of the tension spring 11, and the two hooks 17 are respectively hung in the first connecting hanging hole 14 and the second connecting hanging hole 16. When installing the tension spring 11, it is only necessary to hang the hooks 17 at both ends of the tension spring 11 in the first connecting hanging hole 14 and the second connecting hanging hole 16 respectively. When disassembling, it is only necessary to take out the two hooks 17 from the first connecting hanging hole 14 and the second connecting hanging hole 16 respectively, which is convenient for installation and disassembly.

[0039] In this embodiment, the end of the handbrake lever 101 away from the gantry 3 is provided with a bent portion 103 which extends obliquely downward and in a direction away from the gantry 3, and a handbrake handle 104 which is fixedly connected to the end of the bent portion 103 away from the gantry 3. The end of the handbrake lever 101 away from the gantry 3 is bent downward to reduce the height of the handbrake handle 104, making it convenient for the driver to operate the handbrake lever 101 and better meeting the driver's force angle requirements.

[0040] In this embodiment, a pedal 203 is fixedly provided at one end of the pedal arm 201 away from the gantry 3, and an anti-skid component 204 is provided on the upper surface of the pedal 203. Specifically, the anti-skid component 204 includes an anti-skid pad and / or an anti-skid protrusion, which can facilitate stepping on to drive the pedal arm 201 to rotate, avoid slipping, and improve safety.

[0041] Embodiment 2

[0042] like Figure 3 As shown, this embodiment discloses a tractor, comprising the above-mentioned integrated braking mechanism of the hand brake and foot brake.

[0043] During use, when manual braking is required after stepping on the pedal 203, the driver lifts the handbrake handle 104 upwards, so that the handbrake rod 101 rotates axially with the rotating shaft 8 as the axis, and the ratchet 7 moves toward the locking plate 5 until the ratchet 7 is inserted into the tooth groove 6, and then releases the pedal 203, the tooth groove 6 prevents the ratchet 7 from rotating with the rotating shaft 8 as the axis, and the ratchet 7 prevents the pedal arm 201 from rebounding, thereby realizing the handbrake parking action. When the handbrake parking needs to be released, the driver steps on the pedal 203 downwards, so that the ratchet 7 is disengaged from the tooth groove 6, and the ratchet 7 is reset under the tension of the tension spring 11, and the pedal 203 is released, and the pedal 203 is reset under the action of the torsion spring 202, and the handbrake parking is released.

[0044] The utility model integrates the handbrake assembly 1 next to the footbrake assembly 2, freeing up the handbrake installation space next to the driver's seat 18, optimizing the spatial arrangement of the driver's seat 18, simplifying the structure of the handbrake assembly 1, making operation more convenient and reducing costs.

[0045] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hand brake and foot brake integrated braking mechanism, characterized in that: The invention comprises a hand brake assembly (1), a foot brake assembly (2) and a gantry (3) for connecting with a vehicle body, wherein a gantry stand (4) is fixedly provided on the side of the gantry (3) facing the inner side of the cab; the foot brake assembly (2) comprises a pedal arm (201), one end of the pedal arm (201) is pivotally connected to the side of the gantry (3) facing the inner side of the cab, a torsion spring (202) is provided between the pedal arm (201) and the gantry (3), and a A locking plate (5), wherein the locking plate (5) is provided with a plurality of tooth grooves (6); the handbrake assembly (1) comprises a handbrake lever (101), the middle portion of the handbrake lever (101) is pivotally connected to the vertical plate of the gantry (3), and the end of the handbrake lever (101) facing the gantry (3) is provided with a ratchet (7) extending toward the locking plate (5) for cooperating with the tooth grooves (6), and the gantry vertical frame (4) is provided with an elastic reset mechanism for driving the ratchet (7) away from the tooth grooves (6).

2. A hand brake and foot brake integrated braking mechanism according to claim 1, characterized in that: A rotating shaft (8) is fixedly provided on the side wall of the gantry frame (4), a handbrake cylinder (102) is fixedly provided on the handbrake lever (101), and the handbrake cylinder (102) is rotatably sleeved on the rotating shaft (8).

3. A hand brake and foot brake integrated braking mechanism according to claim 2, characterized in that: The end of the rotating shaft (8) away from the gantry stand (4) is provided with a limiting ring groove (9) after extending out of the hand brake tube (102), and a retaining spring (10) is sleeved in the limiting ring groove (9).

4. The integrated handbrake and footbrake braking mechanism according to claim 2, characterized in that: The elastic reset mechanism comprises a tension spring (11), the upper end of the tension spring (11) is connected to a side of the handbrake cylinder (102) away from the ratchet (7), and the lower end of the tension spring (11) is connected to the gantry frame (4) below the rotating shaft (8).

5. The integrated handbrake and footbrake braking mechanism according to claim 4, characterized in that: It also comprises a rotating shaft seat (12), wherein the rotating shaft seat (12) is detachably fixedly connected to the gantry frame (4) via bolts, and one end of the rotating shaft (8) is fixedly connected to the side of the rotating shaft seat (12) away from the gantry frame (4).

6. A hand brake and foot brake integrated braking mechanism according to claim 5, characterized in that: A first connecting seat (13) is provided at the bottom of the rotating shaft seat (12), and a first connecting hanging hole (14) is provided on the first connecting seat (13). A second connecting seat (15) is fixedly provided on the side wall of the handbrake cylinder (102) away from the ratchet (7), and a second connecting hanging hole (16) is provided on the second connecting seat (15). Hooks (17) are fixedly provided at both ends of the tension spring (11), and the two hooks (17) are respectively hung in the first connecting hanging hole (14) and the second connecting hanging hole (16).

7. A hand brake and foot brake integrated braking mechanism according to any one of claims 1 to 6, characterized in that: The end of the handbrake lever (101) away from the gantry (3) is provided with a bent portion (103) extending obliquely downward and in a direction away from the gantry (3), and a handbrake handle (104) fixedly connected to the end of the bent portion (103) away from the gantry (3).

8. A hand brake and foot brake integrated braking mechanism according to any one of claims 1 to 6, characterized in that: A pedal (203) is fixedly provided at one end of the pedal arm (201) away from the gantry (3), and an anti-skid component (204) is provided on the upper surface of the pedal (203).

9. The integrated handbrake and footbrake braking mechanism according to claim 8, characterized in that: The anti-skid component (204) includes an anti-skid pad and / or an anti-skid protrusion.

10. A tractor, characterized in that: It comprises a handbrake and footbrake integrated braking mechanism as claimed in any one of claims 1 to 9.

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