Hydraulically-controlled safety clamping hook device for harrow frame

Abstract

The utility model provides a hydraulically-controlled safety clamping hook device for a harrow frame, which comprises a main harrow frame, a pair of side harrow frames used for being connected with a harrow group are symmetrically and rotatably arranged on two opposite sides of the main harrow frame, and a pair of folding oil cylinders are symmetrically and rotatably arranged on the two opposite sides of the main harrow frame; a connecting plate is arranged on the side wall of one side harrow frame, a hooking plate is arranged at the bottom of the connecting plate, a transverse plate and a vertical plate are arranged on the side wall of the other side harrow frame, and an anti-disengaging support is arranged between the transverse plate and the vertical plate. An anti-disengaging mechanism used for being connected with the hooking plate after the side rake frame rotates around the main rake frame to be folded is arranged in the anti-disengaging support. The anti-disengaging mechanism comprises a clamping locking oil cylinder rotationally arranged in the anti-disengaging support, a hook lug plate is rotationally arranged on a telescopic shaft of the clamping locking oil cylinder, a hook plate which is rotationally connected with the anti-disengaging support and used for hooking the hook plate is arranged in the hook lug plate, and the anti-disengaging device is reasonable in structure, easy and labor-saving in locking and high in safety.

Description

Technical Field

[0001] The utility model relates to a safety hook device, in particular to a safety hook device for a hydraulically controlled rake frame. Background Art

[0002] The rake frame includes a main rake frame and a side rake frame. Since the folding of the side rake frame on the main rake frame is generally controlled by an oil cylinder, if the oil cylinder leaks accidentally after folding, the side rake frame will fall suddenly. If prevention is not timely, personal injury or even death may occur. Therefore, a safety hook device for the rake frame is required.

[0003] In the prior art, a general safety hook device for a rake frame is a mechanical safety device. After the side rake frame on the main rake frame is folded, a person needs to go up and lock it with a pin shaft. The locking is troublesome and laborious. If the oil cylinder leaks during this process, it is easy to cause a dangerous situation. Now there is an urgent need for a hydraulically controlled safety hook device for a rake frame to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a hydraulically controlled safety hook device for a rake frame to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure, simple and labor-saving locking, and high safety.

[0005] In order to achieve the above object, the utility model is implemented through the following technical scheme: a hydraulically controlled safety hook device for a rake frame, comprising:

[0006] A main rake frame, a pair of side rake frames for connecting with the rake group are symmetrically rotatably arranged on opposite sides of the main rake frame, a pair of folding cylinders are symmetrically rotatably arranged on opposite sides of the main rake frame, and the telescopic shafts of the folding cylinders are rotatably connected to the side rake frames opposite to the folding cylinders;

[0007] A connecting plate is arranged on the side wall of one of the side rake frames, a hooking plate is arranged at the bottom of the connecting plate, a transverse plate and a vertical plate are arranged on the side wall of the other side rake frame, an anti-slipping bracket is arranged between the transverse plate and the vertical plate, and an anti-slipping mechanism is arranged inside the anti-slipping bracket for connecting with the hooking plate when the side rake frame is rotated and folded around the main rake frame;

[0008] The anti-slip mechanism comprises a clamping locking oil cylinder rotatably arranged inside the anti-slip bracket, a hook ear plate rotatably arranged on the telescopic shaft of the clamping locking oil cylinder, and a hook plate rotatably connected to the anti-slip bracket and used for hooking the hook plate is arranged inside the hook ear plate.

[0009] Furthermore, the hook plate includes a hanging plate arranged at the bottom of the connecting plate, a hanging groove for avoiding the hook plate is opened on the top of the hanging plate, and a hook shaft placed in the hanging groove is arranged inside the hanging plate.

[0010] Furthermore, a hook groove for hooking on the side wall of the hook shaft is provided at the bottom of the hook plate.

[0011] Furthermore, fixing bolts are provided between the mounting plate and the connecting plate.

[0012] Furthermore, the anti-drop bracket includes a bottom plate arranged on the top of the horizontal plate and a side plate arranged on the side wall of the vertical plate. A pair of connecting plates are arranged between the top of the bottom plate and the side wall of the side plate. The locking cylinder and the hook plate are rotatably connected to the connecting plates respectively.

[0013] Furthermore, mounting bolts are provided between the bottom plate and the horizontal plate, and between the vertical plate and the side plate.

[0014] Furthermore, a pair of shaft sleeves are symmetrically arranged on the side walls of a pair of connecting plates, a third rotating shaft passing through the shaft sleeves is arranged between the clamping locking cylinder and the shaft sleeves, a first rotating shaft passing through the shaft sleeves is arranged between the hook plate and the shaft sleeves, and a second rotating shaft is arranged between the telescopic shaft of the clamping locking cylinder and the hook ear plate.

[0015] Furthermore, a pair of side rake frame side walls are each provided with a fixed plate, a second rotating column is provided between the main rake frame and the folding cylinder, a first rotating column is provided between the telescopic shaft of the folding cylinder and the fixed plate, a third rotating column is provided between the side rake frame and the main rake frame, and the second rotating column is placed between the first rotating column and the third rotating column.

[0016] Furthermore, the first rotating shaft, the second rotating shaft, the third rotating shaft, the first rotating column, the second rotating column and the third rotating column are all pins.

[0017] According to the utility model, a hydraulically controlled safety hook device for a rake frame is used. A pair of folding cylinders are used to rotate the side rake frame 1 around the main rake frame 7 for folding. After folding, the locking cylinder is operated to push the hook ear plate to rotate around the telescopic shaft of the locking cylinder. At the same time, the hook plate is rotated around the anti-detachment bracket and hooked on the hook plate, thereby locking the position of the pair of side rake frames after folding, thereby preventing the side rake frames from falling off, facilitating the locking of the side rake frames after folding, and the locking is simple and labor-saving with high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a structural schematic diagram of a hydraulically controlled safety hook device for a rake according to an embodiment of the utility model;

[0020] Figure 2A top view of a hydraulically controlled safety hook device for a rake frame after it is unfolded according to an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the connection between the anti-slip mechanism and the anti-slip bracket in a hydraulically controlled safety hook device for a rake according to one embodiment of the utility model;

[0022] Figure 4 According to an embodiment of the present utility model Figure 3 A top view of the connection between the middle anti-slip mechanism and the anti-slip bracket;

[0023] Figure 5 It is a top view of a hook plate in a safety hook device for a hydraulically controlled rake according to an embodiment of the utility model;

[0024] Figure 6 It is a front view of a hook plate in a safety hook device for a hydraulically controlled rake according to an embodiment of the utility model;

[0025] Figure 7 A top view of the connection between the rake frame and the connecting plate and the connecting plate after the safety hook device for the hydraulically controlled rake frame is unfolded according to one embodiment of the utility model;

[0026] In the figure: 1, side rake frame; 2, fixing plate; 21, first rotating column; 3, folding cylinder; 4, connecting plate; 41, fixing bolt; 5, hook plate; 51, hanging plate; 52, hanging groove; 53, hook shaft; 6, second rotating column; 7, main rake frame; 71, third rotating column; 8, anti-slip mechanism; 81, hook plate; 811, hook groove; 82, first rotating shaft; 821, shaft sleeve; 83, hook ear plate; 84, second rotating shaft; 85, clamping locking cylinder; 86, third rotating shaft; 9, mounting bolt; 10, horizontal plate; 11, anti-slip bracket; 111, bottom plate; 112, connecting plate; 113, side plate; 12, vertical plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figure 1 As shown, the utility model provides a technical solution: a hydraulically controlled safety hook device for a rake frame, comprising:

[0029] A main rake frame 7, a pair of side rake frames 1 for connecting with the rake group are symmetrically rotatably arranged on opposite sides of the main rake frame 7, wherein the side rake frames 1 are provided with connecting ear plates for connecting with the rake group, and a pair of folding cylinders 3 are symmetrically rotatably arranged on opposite sides of the main rake frame 7, and the telescopic shafts of the folding cylinders 3 are rotatably connected to the side rake frames 1 opposite to the folding cylinders 3;

[0030] A connecting plate 4 is provided on the side wall of one of the side rake frames 1, and a hooking plate 5 is provided at the bottom of the connecting plate 4. A transverse plate 10 and a vertical plate 12 are provided on the side walls of the other side rake frame 1, and an anti-slip bracket 11 is provided between the transverse plate 10 and the vertical plate 12. An anti-slip mechanism 8 is provided inside the anti-slip bracket 11 for connecting with the hooking plate 5 when the side rake frame 1 is rotated and folded around the main rake frame 7.

[0031] The anti-slip mechanism 8 includes a clamping and locking cylinder 85 rotatably arranged inside the anti-slip bracket 11, and a hook ear plate 83 is rotatably arranged on the telescopic axis of the clamping and locking cylinder 85. A hook plate 81 is arranged inside the hook ear plate 83, which is rotatably connected to the anti-slip bracket 11 and is used to hook the hook plate 5. This design uses a pair of folding cylinders 3 to make the side rake frame 1 rotate around the main rake frame 7 for folding. When folding is completed, the clamping and locking cylinder 85 is operated to push the hook ear plate 83 to rotate around the telescopic axis of the clamping and locking cylinder 85, and at the same time, the hook plate 81 is rotated around the anti-slip bracket 11 and hooked on the hook plate 5, thereby locking the position of the pair of side rake frames 1 after folding, thereby preventing the side rake frames 1 from falling off, and facilitating the locking of the side rake frames 1 after folding. The locking is simple and labor-saving, and the safety is high.

[0032] Reference Figure 1 , Figure 5 and Figure 6 The hook plate 5 includes a hanging plate 51 arranged at the bottom of the connecting plate 4, a hanging groove 52 for avoiding the hook plate 81 is opened on the top of the hanging plate 51, and a hook shaft 53 is arranged inside the hanging groove 52. This design facilitates connection with the hook plate 81 by using the hanging groove 52 and the hook shaft 53.

[0033] Reference Figure 3 and Figure 4 A hook groove 811 for hooking on the side wall of the hook shaft 53 is provided at the bottom of the hook plate 81. This design facilitates hooking the hook plate 81 on the hook shaft 53 by using the hook groove 811.

[0034] Reference Figure 1 and Figure 2 A fixing bolt 41 is provided between the hanging plate 51 and the connecting plate 4, and this design improves the stability of the connection.

[0035] Reference Figure 1 , Figure 3 and Figure 4The anti-slip bracket 11 includes a bottom plate 111 arranged on the top of the horizontal plate 10 and a side plate 113 arranged on the side wall of the vertical plate 12. A pair of connecting plates 112 are arranged between the top of the bottom plate 111 and the side wall of the side plate 113. The clamping locking cylinder 85 and the hook plate 81 are rotatably connected to the connecting plates 112 respectively. This design facilitates the installation and fixation of the anti-slip bracket 11. Mounting bolts 9 are arranged between the bottom plate 111 and the horizontal plate 10, and between the vertical plate 12 and the side plate 113. This design improves the stability of the connection.

[0036] Reference Figure 4 A pair of shaft sleeves 821 are symmetrically arranged on the side walls of a pair of connecting plates 112, a third rotating shaft 86 that passes through the shaft sleeve 821 is arranged between the locking cylinder 85 and the shaft sleeve 821, a first rotating shaft 82 that passes through the shaft sleeve 821 is arranged between the hook plate 81 and the shaft sleeve 821, and a second rotating shaft 84 is arranged between the telescopic shaft of the locking cylinder 85 and the hook ear plate 83. This design facilitates the rotation of the locking cylinder 85 around the shaft sleeve 821 on the connecting plate 112 by using the third rotating shaft 86, facilitates the rotation of the hook plate 81 around the shaft sleeve 821 on the connecting plate 112 by using the first rotating shaft 82, and facilitates the rotation of the hook ear plate 83 around the telescopic shaft of the locking cylinder 85 by using the second rotating shaft 84.

[0037] Reference Figure 1 , Figure 2 and Figure 7 A pair of side rake frames 1 are each provided with a fixed plate 2 on their side walls, a second rotating column 6 is provided between the main rake frame 7 and the folding cylinder 3, a first rotating column 21 is provided between the telescopic shaft of the folding cylinder 3 and the fixed plate 2, a third rotating column 71 is provided between the side rake frame 1 and the main rake frame 7, and the second rotating column 6 is placed between the first rotating column 21 and the third rotating column 71. This design facilitates the telescopic shaft of the folding cylinder 3 to rotate around the fixed plate 2 by using the first rotating column 21, facilitates the folding cylinder 3 to rotate around the main rake frame 7 by using the second rotating column 6, and facilitates the side rake frame 1 to rotate around the main rake frame 7 by using the third rotating column 71. The first rotating shaft 82, the second rotating shaft 84, the third rotating shaft 86, the first rotating column 21, the second rotating column 6 and the third rotating column 71 are all pin shafts, and the rationality of this design is improved by connecting with pin shafts.

[0038] Reference Figure 1-Figure 7As an embodiment of the utility model: when the side rake frame 1 needs to be folded, the staff makes the pair of folding cylinders 3 work under the action of the first rotating column 21, the second rotating column 6 and the third rotating column 71 to rotate and fold the pair of side rake frames 1 around the main rake frame 7. When the folding is completed, the clamping locking cylinder 85 works under the action of the first rotating shaft 82, the second rotating shaft 84 and the third rotating shaft 86 to push the hook ear plate 83 to rotate around the telescopic axis of the clamping locking cylinder 85, and at the same time, the hook plate 81 rotates around the anti-detachment support The frame 11 is rotatably hooked on the side wall of the hook shaft 53 on the hook plate 5, thereby locking the position of a pair of side rake frames 1 after folding, thereby preventing the side rake frames 1 from falling off, facilitating locking the position of the side rake frames 1 after folding, and preventing the rake group connected to the side rake frames 1 from being damaged. The locking is simple and labor-saving, and the safety is high. The locking and anti-falling effect is achieved by controlling the card locking cylinder 85, which can be completed by one person, and the operation is simple and convenient. It is a safe, efficient, and labor-saving safety locking device, which improves the practicality of the utility model.

[0039] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydraulically controlled safety hook device for a rake, comprising: A main rake frame (7), a pair of side rake frames (1) for connecting with a rake group are symmetrically rotatably arranged on opposite sides of the main rake frame (7), a pair of folding cylinders (3) are symmetrically rotatably arranged on opposite sides of the main rake frame (7), and the telescopic shafts of the folding cylinders (3) are rotatably connected to the side rake frames (1) opposite to the folding cylinders (3); It is characterized in that A connecting plate (4) is provided on the side wall of one of the side rake frames (1), a hooking plate (5) is provided at the bottom of the connecting plate (4), and a transverse plate (10) and a vertical plate (12) are provided on the side wall of the other side rake frame (1), an anti-slip bracket (11) is provided between the transverse plate (10) and the vertical plate (12), and an anti-slip mechanism (8) is provided inside the anti-slip bracket (11) for connecting with the hooking plate (5) when the side rake frame (1) is rotated and folded around the main rake frame (7); The anti-slip mechanism (8) comprises a locking cylinder (85) rotatably arranged inside the anti-slip bracket (11), a hook plate (83) rotatably arranged on the telescopic shaft of the locking cylinder (85), and a hook plate (81) rotatably connected to the anti-slip bracket (11) and used for hooking the hook plate (5) is arranged inside the hook plate (83).

2. A safety hook device for a hydraulically controlled rake according to claim 1, characterized in that: The hook plate (5) comprises a hanging plate (51) arranged at the bottom of the connecting plate (4); a hanging groove (52) for avoiding the hook plate (81) is provided at the top of the hanging plate (51); and a hook shaft (53) is arranged inside the hanging groove (52).

3. A safety hook device for a hydraulically controlled rake according to claim 2, characterized in that: The bottom of the hook plate (81) is provided with a hook groove (811) for hooking onto the side wall of the hook shaft (53).

4. A safety hook device for a hydraulically controlled rake according to claim 2, characterized in that: A fixing bolt (41) is provided between the hanging plate (51) and the connecting plate (4).

5. A safety hook device for a hydraulically controlled rake according to claim 1, characterized in that: The anti-drop bracket (11) comprises a bottom plate (111) arranged on the top of the transverse plate (10) and a side plate (113) arranged on the side wall of the vertical plate (12); a pair of connecting plates (112) are arranged between the top of the bottom plate (111) and the side wall of the side plate (113); the clamping locking cylinder (85) and the hook plate (81) are rotatably connected to the connecting plates (112) respectively.

6. A safety hook device for a hydraulically controlled rake according to claim 5, characterized in that: Mounting bolts (9) are provided between the bottom plate (111) and the transverse plate (10), and between the vertical plate (12) and the side plate (113).

7. A safety hook device for a hydraulically controlled rake according to claim 5, characterized in that: A pair of shaft sleeves (821) are symmetrically provided on the side walls of the pair of connecting plates (112); a third rotating shaft (86) penetrating the shaft sleeve (821) is provided between the clamping locking cylinder (85) and the shaft sleeve (821); a first rotating shaft (82) penetrating the shaft sleeve (821) is provided between the hook plate (81) and the shaft sleeve (821); and a second rotating shaft (84) is provided between the telescopic shaft of the clamping locking cylinder (85) and the hook ear plate (83).

8. A safety hook device for a hydraulically controlled rake according to claim 7, characterized in that: A pair of side rake frames (1) are each provided with a fixed plate (2) on their side walls, a second rotating column (6) is provided between the main rake frame (7) and the folding cylinder (3), a first rotating column (21) is provided between the telescopic shaft of the folding cylinder (3) and the fixed plate (2), a third rotating column (71) is provided between the side rake frame (1) and the main rake frame (7), and the second rotating column (6) is placed between the first rotating column (21) and the third rotating column (71).

9. A safety hook device for a hydraulically controlled rake according to claim 8, characterized in that: The first rotating shaft (82), the second rotating shaft (84), the third rotating shaft (86), the first rotating column (21), the second rotating column (6) and the third rotating column (71) are all pin shafts.

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