Novel tractor inner lock

Abstract

The utility model relates to the technical field of tractors, in particular to a novel tractor inner lock which comprises a locking assembly and a pull rod, a main unlocking mechanism is arranged on the pull rod, an unlocking groove is formed in the pull rod in the length direction of the pull rod, and the locking assembly comprises a mounting frame and a lock body structure arranged on the inner side of the mounting frame. The main unlocking mechanism comprises a supporting plate, a pressing block, a touch plate and a connecting strip, the supporting plate is arranged between the mounting frame and the pull rod, the touch plate is hinged to the supporting plate, one end of the touch plate extends to the inner side of the mounting frame and abuts against the lock body structure, the pressing block is arranged in an unlocking groove of the pull rod, and the connecting strip is connected between the pressing block and the touch plate. The novel tractor inner lock is provided with the pull rod, the pull rod is provided with the main unlocking mechanism, the pull rod can be used for unlocking and can also be used as a handrail, a user can find the main unlocking mechanism by groping along the pull rod, groping for unlocking in a blind area is not needed, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor technical field, concretely is a novel tractor inner lock. BACKGROUND

[0002] The engine compartment is arranged at the front of the tractor, the engine compartment upper cover is provided with an engine cover, the inside of the engine cover is provided with a tractor inner lock, the engine cover is used for covering or opening the engine compartment and locking the engine noise by covering the engine compartment, and the tractor inner lock is used for opening or closing the locking engine cover. SUMMARY

[0003] The utility model discloses a novel tractor inner lock to overcome the problems of the prior art.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a novel tractor inner lock, including locking assembly and pull rod, be provided with main unlocking mechanism on the pull rod, the pull rod is equipped with the unlocking slot along its length direction, the locking assembly includes the installation frame and the lock body structure in the inside of installation frame, and the main unlocking mechanism includes the support plate, press block, touch plate and connecting strip, the support plate is arranged between the installation frame and the pull rod, the touch plate is hinged with the support plate, one end of the touch plate extends to the inside of the installation frame and abuts with the lock body structure, the press block is equipped in the unlocking slot of the pull rod, and the connecting strip is connected between the press block and the touch plate.

[0005] On the basis of the above technical scheme, the utility model can also be improved as follows:

[0006] Further, the pull rod is a metal pipe, the installation frame is assembled by a plurality of steel plates, the installation frame is provided with an outer shell, the support plate is a steel plate, one end of the support plate is connected and fixed with the installation frame through a screw, and the other end of the support plate is connected and fixed with one end of the pull rod through a screw.

[0007] Further, the unlocking slot is long strip, the pull rod is provided with a connecting block at one end of the unlocking slot, the connecting block is fixed to the inner wall of the pull rod through a screw, one end of the press block is hinged with the connecting block, and the other end of the press block is connected with the connecting strip.

[0008] Further, the connecting strip is a stainless steel wire, and connecting holes are arranged at the connecting positions of the triggering plate, the pressing block and the connecting strip; a first hinged shaft is arranged between the triggering plate and the supporting plate, so that the triggering plate can rotate relative to the supporting plate.

[0009] Further, the mounting frame is provided with a secondary unlocking mechanism, the secondary unlocking mechanism comprises side plates arranged on the mounting frame and unlocking blocks hinged to the side plates, the side plates are arranged in two, the unlocking blocks are clamped between the two side plates, a second hinged shaft is arranged between the unlocking blocks and the side plates, and one end of the unlocking blocks extends to the inner side of the mounting frame and abuts against the lock body structure.

[0010] Further, the lock body structure comprises a driving plate hinged to the inner side of the mounting frame and two locking rotating plates, the inner side of the mounting frame is provided with a receiving space for accommodating the driving plate and the locking rotating plates, one side of the mounting frame is provided with a U-shaped groove for matching a lock ring of the engine cover and a through groove for the locking rotating plate to pass through, and the through groove is communicated with the groove; when the lock body structure is in the locking state, the locking groove of the locking rotating plate cooperates with the U-shaped groove of the mounting frame to form a locking cavity.

[0011] Further, a third hinged shaft is arranged between the driving plate and the mounting frame, and a fourth hinged shaft is arranged between each locking rotating plate and the mounting frame, the driving plate is rotationally sleeved on the third hinged shaft, the locking rotating plate is rotationally sleeved on the fourth hinged shaft, the driving plate can rotate around the third hinged shaft, the locking rotating plate can rotate around the fourth hinged shaft, a torsional spring is sleeved on the third hinged shaft and the fourth hinged shaft, one end of the torsional spring is clamped on the mounting frame, and the other end of the torsional spring is clamped on the driving plate or the locking rotating plate.

[0012] Further, the locking rotating plate is provided with a locking groove and a plurality of meshing teeth, the locking groove is in a U-shaped structure, one end of the driving plate is engaged with the meshing teeth of the locking rotating plate, and the driving plate and the locking rotating plate cooperate to form the unlocking and locking states of the lock body structure under the action of the torsional spring, and one end of the triggering plate of the primary unlocking mechanism extends to the inner side of the mounting frame and abuts against the other end of the driving plate.

[0013] Further, one end of the driving plate is provided with a triggering pin, and one end of the unlocking block of the secondary unlocking mechanism extends to the inner side of the mounting frame and abuts against the triggering pin on the other end of the driving plate.

[0014] The novel tractor inner lock provided by the utility model is provided with a pull rod, the pull rod is provided with a primary unlocking mechanism, the primary unlocking mechanism can be used for unlocking and also can be used as a handrail, a user can find the primary unlocking mechanism by groping along the pull rod, and it is not necessary to grope for unlocking in a blind area, so that the operation is convenient and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further described below in combination with the drawings and embodiments.

[0016] Figure 1 is a structural schematic view of the novel tractor inner lock provided by the preferred embodiment of the present application;

[0017] Figure 2 is Figure 1 is a partial sectional view of the tractor inner lock along the rear side in the tractor inner lock;

[0018] Figure 3 is Figure 1 is a structural schematic view of the locking assembly in the tractor inner lock;

[0019] Figure 4 is Figure 3 is an internal structural schematic view of the locking assembly in the tractor inner lock;

[0020] In the figure: 11, mounting frame; 111, groove; 112, through slot; 121, driving plate; 122, locking rotating plate; 123, third hinge shaft; 124, fourth hinge shaft; 125, torsional spring; 126, locking slot; 127, meshing tooth; 128, triggering pin; 2, pull rod; 21, unlocking slot; 22, connecting block; 31, support plate; 32, pressing block; 33, triggering plate; 34, connecting strip; 35, first hinge shaft; 41, side plate; 42, unlocking block; 43, second hinge shaft; 5, shell. DETAILED DESCRIPTION

[0021] The present application will now be further described in greater detail in connection with the attached drawings and examples, which are shown by way of illustration and are not to be construed as limiting the present application. These drawings are not to scale and are only intended to illustrate the basic structure of the present application.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1 to 4 As shown, a preferred embodiment of this utility model provides a novel tractor internal lock, including a locking assembly and a pull rod 2. The pull rod 2 is provided with a main unlocking mechanism, and the pull rod 2 has an unlocking groove 21 along its length. The locking assembly includes a mounting frame 11 and a lock body structure placed inside the mounting frame 11. The main unlocking mechanism includes a support plate 31, a pressing block 32, a touch plate 33, and a connecting strip 34. The support plate 31 is disposed between the mounting frame 11 and the pull rod 2. The touch plate 33 is hinged to the support plate 31, and one end of the touch plate 33 extends to the inside of the mounting frame 11 and abuts against the lock body structure. The pressing block 32 is disposed in the unlocking groove 21 of the pull rod 2, and the connecting strip 34 connects the pressing block 32 and the touch plate 33. Because the pull rod 2 is provided with a main unlocking mechanism, it can be used for unlocking and also as a handrail. Users can find the main unlocking mechanism by feeling along the pull rod 2, without having to search for unlocking in blind spots, making operation convenient and easy.

[0025] Specifically, in this embodiment, the pull rod 2 is a metal tube, the mounting frame 11 is assembled from multiple steel plates, the mounting frame 11 is covered with an outer shell 5, the outer shell 5 serves a protective function, the support plate 31 is a steel plate, one end of the support plate 31 can be connected and fixed to the mounting frame 11 by screws, and the other end of the support plate 31 can be connected and fixed to one end of the pull rod 2 by screws.

[0026] Furthermore, the unlocking groove 21 is elongated, and a connecting block 22 is provided at one end of the unlocking groove 21 inside the pull rod 2. The connecting block 22 can be fixed to the inner wall of the pull rod 2 by screws. One end of the pressing block 32 is hinged to the connecting block 22, and the other end of the pressing block 32 is connected to the connecting strip 34.

[0027] Furthermore, the connecting strip 34 is made of stainless steel wire, and the connection holes are provided at the connection points between the touch plate 33 and the pressing block 32 and the connecting strip 34; a first hinge shaft 35 is connected between the touch plate 33 and the support plate 31, so that the touch plate 33 can rotate relative to the support plate 31.

[0028] Furthermore, the mounting frame 11 is provided with a secondary unlocking mechanism, which includes a side plate 41 disposed on the mounting frame 11 and an unlocking block 42 hinged to the side plate 41. There are two side plates 41, and the unlocking block 42 is sandwiched between the two side plates 41. A second hinge shaft 43 connects the unlocking block 42 and the side plate 41. One end of the unlocking block 42 extends to the inside of the mounting frame 11 and abuts against the lock body structure.

[0029] Furthermore, the lock body structure includes a drive plate 121 hinged to the inner side of the mounting frame 11 and two locking rotating plates 122. The inner side of the mounting frame 11 is provided with a receiving space for accommodating the drive plate 121 and the locking rotating plates 122. One side of the mounting frame 11 is provided with a U-shaped groove 111 for fitting the locking ring of the engine hood and a through groove 112 for the locking rotating plates 122 to pass through. The through groove 112 communicates with the groove 111. When the lock body structure is in the locked state, the locking groove 126 of the locking rotating plate 122 cooperates with the U-shaped groove 111 of the mounting frame 11 to form a locking cavity.

[0030] Specifically, a third hinge shaft 123 connects the drive plate 121 to the mounting frame 11, and a fourth hinge shaft 124 connects each locking rotating plate 122 to the mounting frame 11. The drive plate 121 is rotatably sleeved on the third hinge shaft 123, and the locking rotating plate 122 is rotatably sleeved on the fourth hinge shaft 124. The drive plate 121 can rotate around the third hinge shaft 123, and the locking rotating plate 122 can rotate around the fourth hinge shaft 124. A torsion spring 125 is sleeved on both the third hinge shaft 123 and the fourth hinge shaft 124. One end of the torsion spring 125 is engaged with the mounting frame 11, and the other end of the torsion spring 125 is engaged with the drive plate 121 or the locking rotating plate 122. Through the cooperation of the torsion spring 125, the drive plate 121 and the locking rotating plate 122 can rotate and return to their original positions, and the lock body structure switches back and forth between the unlocked and locked states.

[0031] Specifically, the locking rotating plate 122 is provided with a locking groove 126 and a plurality of meshing teeth 127. The locking groove 126 has a U-shaped structure. One end of the drive plate 121 meshes with the meshing teeth 127 of the locking rotating plate 122. The drive plate 121 and the locking rotating plate 122 cooperate under the action of the torsion spring 125 to form the unlocking and locking states of the lock body structure. One end of the touch plate 33 of the main unlocking mechanism extends to the inside of the mounting frame 11 and abuts against the other end of the drive plate 121.

[0032] Specifically, one end of the drive plate 121 is provided with an actuating pin 128, and one end of the unlocking block 42 of the secondary unlocking mechanism extends to the inner side of the mounting frame 11 and abuts against the actuating pin 128 on the other end of the drive plate 121. When the unlocking block 42 is moved, the unlocking block 42 rotates around the second hinge axis 43. When the unlocking block 42 rotates, it presses the actuating pin 128 on the drive plate 121 downward, so that the drive plate 121 disengages from the meshing teeth 127 of the locking rotating plate 122, thereby putting the lock body structure in the unlocked state.

[0033] The working principle of this utility model is as follows: When the engine hood is closed, the locking ring of the engine hood cooperates with the lock body structure. The locking groove 126 of the locking rotating plate 122 cooperates with the U-shaped groove 111 of the mounting frame 11 to form a locking cavity, locking the locking ring of the engine hood. At this time, the lock body structure is in a locked state. When unlocking, the pressing block 32 on the pull rod 2 is pressed to unlock. When the pressing block 32 is pressed, the pressing block 32 pulls the connecting strip 34, causing the connecting strip 34 to drive the touch plate 33 to rotate. When the touch plate 33 rotates, it presses the drive plate 121 downward, causing the drive plate 121 to disengage from the meshing teeth 127 of the locking rotating plate 122. A part of the locking rotating plate 122 passes upward through the through groove 112, so that the lock body structure is in an unlocked state, thereby unlocking the tractor's internal lock.

[0034] The novel tractor internal lock provided by this utility model is equipped with a pull rod 2, which has a main unlocking mechanism. It can be used for unlocking and also as a handrail. Users can find the main unlocking mechanism by following the pull rod 2, without having to search for unlocking in blind spots, making the operation convenient and easy.

[0035] Any descriptions not covered in the above specific embodiments of this utility model belong to the well-known technology in the field, and can be implemented by referring to the well-known technology.

[0036] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A novel tractor internal lock, characterized in that: The device includes a locking assembly and a pull rod. The pull rod is equipped with a main unlocking mechanism and has an unlocking groove along its length. The locking assembly includes a mounting frame and a lock body structure placed inside the mounting frame. The main unlocking mechanism includes a support plate, a pressing block, a touch plate, and a connecting strip. The support plate is located between the mounting frame and the pull rod. The touch plate is hinged to the support plate. One end of the touch plate extends to the inside of the mounting frame and abuts against the lock body structure. The pressing block is located in the unlocking groove of the pull rod, and the connecting strip connects the pressing block and the touch plate.

2. The novel tractor internal lock according to claim 1, characterized in that: The pull rod is a metal tube, the mounting frame is assembled from multiple steel plates, the mounting frame is covered with an outer shell, the support plate is a steel plate, one end of the support plate is connected and fixed to the mounting frame by screws, and the other end of the support plate is connected and fixed to one end of the pull rod by screws.

3. The novel tractor internal lock according to claim 2, characterized in that: The unlocking groove is elongated. Inside the pull rod, a connecting block is provided at one end of the unlocking groove. The connecting block is fixed to the inner wall of the pull rod by screws. One end of the pressing block is hinged to the connecting block, and the other end of the pressing block is connected to the connecting strip.

4. The novel tractor internal lock according to claim 3, characterized in that: The connecting strip is made of stainless steel wire, and the touch plate and pressing block are provided with connecting holes at the connection points with the connecting strip; a first hinge shaft is connected between the touch plate and the support plate, so that the touch plate can rotate relative to the support plate.

5. The novel tractor internal lock according to claim 4, characterized in that: The mounting frame is provided with a secondary unlocking mechanism, which includes a side plate disposed on the mounting frame and an unlocking block hinged to the side plate. There are two side plates, and the unlocking block is sandwiched between the two side plates. A second hinge shaft connects the unlocking block and the side plate. One end of the unlocking block extends to the inside of the mounting frame and abuts against the lock body structure.

6. The novel tractor internal lock according to claim 5, characterized in that: The lock body structure includes a drive plate hinged to the inner side of the mounting frame and two locking rotating plates. The inner side of the mounting frame is provided with a receiving space for accommodating the drive plate and the locking rotating plates. One side of the mounting frame is provided with a U-shaped groove for fitting the locking ring of the engine hood and a through groove for the locking rotating plates to pass through. The through groove communicates with the groove. When the lock body structure is in the locked state, the locking groove of the locking rotating plate and the U-shaped groove of the mounting frame cooperate to form a locking cavity.

7. The novel tractor internal lock according to claim 6, characterized in that: A third hinge shaft connects the drive plate to the mounting frame, and a fourth hinge shaft connects each locking rotating plate to the mounting frame. The drive plate is rotatably sleeved on the third hinge shaft, and the locking rotating plate is rotatably sleeved on the fourth hinge shaft. The drive plate can rotate around the third hinge shaft, and the locking rotating plate can rotate around the fourth hinge shaft. A torsion spring is sleeved on both the third and fourth hinge shafts. One end of the torsion spring is engaged with the mounting frame, and the other end of the torsion spring is engaged with the drive plate or the locking rotating plate.

8. The novel tractor internal lock according to claim 7, characterized in that: The locking rotating plate is provided with a locking groove and multiple meshing teeth. The locking groove has a U-shaped structure. One end of the drive plate meshes with the meshing teeth of the locking rotating plate. The drive plate and the locking rotating plate cooperate under the action of the torsion spring to form the unlocking and locking states of the lock body structure. One end of the touch plate of the main unlocking mechanism extends to the inner side of the mounting frame and abuts against the other end of the drive plate.

9. The novel tractor internal lock according to claim 8, characterized in that: One end of the drive board is provided with an actuating pin, and one end of the unlocking block of the secondary unlocking mechanism extends to the inside of the mounting frame and abuts against the actuating pin on the other end of the drive board.

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