Height-conveniently-adjusted raking tooth for hay rake

Abstract

The utility model discloses a raking tooth convenient for height adjustment for a hay rake, which comprises a connecting plate and an extension plate, and the surface of one side of the connecting plate is fixedly connected with the extension plate; a connecting block is fixedly connected to the surface of the other side of the connecting plate, a connecting shaft is rotatably connected to the surface of the side, away from the connecting plate, of the connecting block, and a connecting rod is fixedly connected to the surface of the connecting shaft; a threaded rod is rotationally connected to the middle of the surface of one side of the connecting plate, and the surface of the threaded rod is sleeved with a threaded sleeve in a threaded mode. Limiting rods are symmetrically installed on the two sides of the threaded sleeve, the threaded rod, the threaded sleeve, the fixed rod, the sliding rod, the sliding sleeve, the rotating shaft, the movable rod and the supporting plate are arranged to be matched, the height of the raking teeth can be adjusted, and therefore the flexibility of the raking teeth is improved; and a single raking tooth can be replaced one by one, so that the cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grass rakes, in particular to a grass rake tooth which is convenient for height adjustment. Background Art

[0002] A grass rake is a grass harvesting machine that raks the grass scattered on the ground into grass strips. The purpose of raking grass is to make the grass fully dry and facilitate the collection of hay. The new grass rake tooth structure on the market cannot perform a height adjustment function. At the same time, when the teeth are partially damaged, they cannot be easily disassembled.

[0003] Publication No. CN213152978U discloses a novel grass rake tooth structure. By starting the push rod motor on the support rod, the push rod motor drives the movable rod to move upward. At this time, the movable rod drives the components connected with the assembly block and the weeding teeth to move simultaneously. When the weeding teeth and the assembly block are completely inside the protective box, when the shielding plate is ready to be pushed, the toggle rod is pulled upward, so that the toggle rod drives the positioning rod to move simultaneously, and the shielding plate is pushed at this time so that the top of the shielding plate fits with the bottom of the assembly block, and then the toggle rod is released. At this time, the toggle rod is pulled by the return spring and the limit block, driving the positioning rod to move downward, and then the positioning rod limits the position of one end of the shielding plate, ensuring that the novel grass rake tooth structure avoids the exposure of the tooth structure in the idle state when in use, and will not pose a safety threat to the surrounding personnel. The safety level is high, but the patent still has the following problems in actual use:

[0004] By starting the push rod motor on the support rod, the push rod motor drives the movable rod to move upward, and the top of the baffle plate fits with the bottom of the assembly block, thereby avoiding the exposure of the idle tooth structure to the outside, and will not pose a safety threat to the surrounding personnel. The safety level is high. Although it can protect the idle tooth structure, it is impossible to adjust the height of the tooth according to different terrains when the tooth is working, so it is not very effective to collect forage placed on different terrains. At the same time, when the tooth is working, it is easy to contact with the ground, which will cause damage to the tooth.

[0005] A rake tooth for a grass rake which is convenient for height adjustment is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a rake tooth for a hay rake that is convenient for height adjustment, so as to solve the problem proposed in the above background technology. Currently, by starting the push rod motor on the support rod, the push rod motor drives the movable rod to move upward, and the top of the shielding plate fits with the bottom of the assembly block, thereby preventing the rake tooth structure in the idle state from being exposed outside, not posing a safety threat to surrounding personnel, and having a high degree of safety. Although it can play a protective role for the rake tooth structure in the idle state, when the rake tooth is working, it is impossible to adjust the height of the rake tooth according to different terrains, so it is not very effective in collecting forages placed on different terrains. At the same time, when the rake tooth is working, it is easy to contact the ground, which may cause damage to the rake tooth.

[0007] To achieve the above purpose, the present utility model provides the following technical solution: A rake tooth for a hay rake that is convenient for height adjustment, including a connecting plate and an extension plate, one side surface of the connecting plate is fixedly connected to the extension plate;

[0008] The other side surface of the connecting plate is fixedly connected with a connecting block, the connecting block is rotatably connected with a connecting shaft on the side surface far from the connecting plate, a connecting rod is fixedly connected to the surface of the connecting shaft, a support plate is fixedly connected to the side surface of the connecting rod far from the connecting shaft, several fixing blocks are fitted and connected to the side surface of the support plate far from the connecting rod, a rake tooth is fixedly installed on the side surface of the fixing block far from the support plate, and pin assemblies are symmetrically arranged on both sides of the fixing block;

[0009] It further includes:

[0010] A threaded rod is rotatably connected to the middle of one side surface of the connecting plate, and a threaded sleeve is threadedly sleeved on the surface of the threaded rod;

[0011] Among them, limiting rods are symmetrically installed on both sides of the threaded sleeve;

[0012] Among them, a fixing rod is fixedly connected to the top surface of the threaded sleeve, a groove is opened on the side surface of the fixing rod near the top, a sliding rod is fixedly installed inside the groove, and a sliding sleeve is slidably connected to the surface of the sliding rod.

[0013] Preferably, the pin assembly includes a support block fixedly connected to the fixing block, a sleeve is fixedly installed in the middle of the support block, a clamping rod is slidably connected inside the sleeve, a first spring is sleeved on the surface of the clamping rod, one side surface of the first spring is fixedly connected to a slider, the other side surface of the first spring is fixedly connected to the sleeve, the slider is slidably connected to the sleeve, and the support block is fitted and connected to the support plate.

[0014] Preferably, a movable rod is fixedly connected to the other side surface of the support plate. A rotating shaft is rotatably connected to the side surface of the movable rod away from the support plate. The side surface of the rotating shaft away from the movable rod is fixedly connected to the sliding sleeve.

[0015] Preferably, sliding grooves are formed on both sides of the extension plate, and the sliding grooves are slidably connected to the limiting rods.

[0016] Preferably, a plug rod penetrates through the side surface of the threaded rod away from the extension plate. A second spring is sleeved on the surface of the plug rod. One side surface of the second spring is fixedly connected to a stabilizing block. The other side surface of the second spring is fixedly connected to the threaded rod. The side surface of the stabilizing block away from the second spring is attached to the extension plate.

[0017] Preferably, a plurality of slots are formed on the side surface of the extension plate away from the connecting plate, and the slots are snap-fitted with the plug rods.

[0018] Preferably, a plurality of clamping grooves are formed on one side surface of the support plate, and the clamping grooves are snap-fitted with the clamping rods.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the tooth rake for a hay rake that is convenient for height adjustment, through the cooperation among the threaded rod, the threaded sleeve, the fixed rod, the sliding rod, the sliding sleeve, the rotating shaft, the movable rod and the support plate, the height of the tooth rake can be adjusted, thereby improving the flexibility of the tooth rake. At the same time, through the setting of the pin assembly, a single tooth rake can be replaced, thereby effectively reducing the increase in cost. The specific content is as follows:

[0020] 1. By setting the threaded rod, the threaded sleeve, the fixed rod, the sliding rod, the sliding sleeve, the rotating shaft, the movable rod and the support plate, by rotating the threaded rod, the movement of the threaded sleeve is driven, so that the movement of the fixed rod can be driven. The movement of the fixed rod can drive the movement of the movable rod. At the same time, the movable rod is fixedly connected to the sliding sleeve, and the sliding sleeve is slidably connected to the sliding rod. Therefore, when the movable rod moves, the support plate can be driven to rotate around the connecting shaft. At the same time, due to the fixation of the support plate and the movable rod, when the movable rod drives the support plate to move, the sliding sleeve will be pushed down, so that the support plate can rotate, and thus the support plate can drive the rake teeth to adjust the height.

[0021] 2. By setting the pin assembly, by pulling the clamping rod to separate the clamping rod from the clamping groove, a single rake tooth can be replaced, thereby effectively reducing the increase in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure in the present utility model;

[0023] Figure 2 Schematic diagram of the overall operation structure in the present utility model;

[0024] Figure 3 Schematic top view structure diagram of the present utility model;

[0025] Figure 4 In the present utility model Figure 1 Enlarged structure diagram of area A;

[0026] Figure 5 In the present utility model Figure 2 Enlarged structure diagram of area B.

[0027] In the figure: 1, connecting plate; 2, connecting block; 3, connecting shaft; 4, connecting rod; 5, support plate; 6, fixing block; 7, rake teeth; 8, pin assembly; 801, support block; 802, sleeve; 803, clamping rod; 804, first spring; 805, slider; 9, movable rod; 10, rotating shaft; 11, extension plate; 12, threaded rod; 13, threaded sleeve; 14, limiting rod; 15, chute; 16, inserting rod; 17, second spring; 18, stabilizing block; 19, inserting slot; 20, fixing rod; 21, groove; 22, sliding rod; 23, sliding sleeve; 24, clamping slot. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-5, the utility model provides a technical solution: a tooth rake for a hay rake that is convenient for height adjustment, including a connecting plate 1 and an extension plate 11, with one side surface of the connecting plate 1 fixedly connected to the extension plate 11; on the other side surface of the connecting plate 1, a connecting block 2 is fixedly connected. On the side surface of the connecting block 2 away from the connecting plate 1, a connecting shaft 3 is rotatably connected. On the surface of the connecting shaft 3, a connecting rod 4 is fixedly connected. On the side surface of the connecting rod 4 away from the connecting shaft 3, a support plate 5 is fixedly connected. On the side surface of the support plate 5 away from the connecting rod 4, a number of fixing blocks 6 are fitted and connected. On the side surface of the fixing block 6 away from the support plate 5, a rake tooth 7 is fixedly installed. On both sides of the fixing block 6, a pin assembly 8 is symmetrically arranged; further included are: in the middle of one side surface of the connecting plate 1, a threaded rod 12 is rotatably connected, and a threaded sleeve 13 is provided on the surface of the threaded rod 12; among them, two limiting rods 14 are symmetrically installed on both sides of the threaded sleeve 13; among them, on the top surface of the threaded sleeve 13, a fixing rod 20 is fixedly connected. On the side surface of the fixing rod 20 near the top, a groove 21 is opened. Inside the groove 21, a sliding rod 22 is fixedly installed. On the surface of the sliding rod 22, a sliding sleeve 23 is slidably connected, as Figures 1-3 shown, first, through the cooperation among the threaded rod 12, the threaded sleeve 13, the fixing rod 20, the sliding rod 22, the sliding sleeve 23, the rotating shaft 10, the movable rod 9, and the support plate 5, the height of the tooth rake can be adjusted, thereby improving the flexibility of the tooth rake.

[0030] The pin assembly 8 includes a support block 801 fixedly connected to the fixing block 6. In the middle of the inside of the support block 801, a sleeve 802 is fixedly installed. Inside the sleeve 802, a clamping rod 803 is slidably connected. A first spring 804 is sleeved on the surface of the clamping rod 803. On one side surface of the first spring 804, a slider 805 is fixedly connected. On the other side surface of the first spring 804, it is fixedly connected to the sleeve 802. The slider 805 is slidably connected to the sleeve 802. The support block 801 is in fit connection with the support plate 5, as Figure 5 shown, by setting the pin assembly 8, by pulling the clamping rod 803, after the clamping rod 803 is separated from the clamping groove 24, a single rake tooth 7 can be replaced, thereby effectively reducing the increase in cost. At the same time, during installation, by loosening the clamping rod 803, the clamping rod 803 returns to its original position under the action of the first spring 804, so that the clamping rod 803 is re-engaged with the clamping groove 24, thereby completing the installation of the rake tooth 7. At the same time, the connection between the clamping rod 803 and the clamping groove 24 is tight, so that the rake tooth 7 will not fall off during use.

[0031] On the other side surface of the support plate 5, a movable rod 9 is fixedly connected. On the side surface of the movable rod 9 away from the support plate 5, a rotating shaft 10 is rotatably connected. On the side surface of the rotating shaft 10 away from the movable rod 9, it is fixedly connected to the sliding sleeve 23. On both sides of the extension plate 11, sliding grooves 15 are provided, and the sliding grooves 15 are slidably connected to the limiting rods 14. On the side surface of the threaded rod 12 away from the extension plate 11, a plug rod 16 is penetrated and connected. A second spring 17 is sleeved on the surface of the plug rod 16. On one side surface of the second spring 17, a stabilizing block 18 is fixedly connected. On the other side surface of the second spring 17, it is fixedly connected to the threaded rod 12. The side surface of the stabilizing block 18 away from the second spring 17 is in close contact with the extension plate 11. On the side surface of the extension plate 11 away from the connecting plate 1, a number of slots 19 are provided, and the slots 19 are snap-fitted with the plug rod 16, as Figure 1 , 3 , as shown in Figure 4, by moving the movable rod 9, it can drive the support plate 5 to rotate around the connecting shaft 3 as the center point. At the same time, due to the fixation of the support plate 5 and the movable rod 9, when the movable rod 9 drives the support plate 5 to move, it will push the sliding sleeve 23 to descend, so that the support plate 5 can rotate, and thus the support plate 5 can drive the rake teeth 7 to adjust the height. At the same time, under the action of the second spring 17, the plug rod 16 is engaged with the slot 19, so that the threaded rod 12 can be limited, thus avoiding the situation of the threaded rod 12 retracting.

[0032] On one side surface of the support plate 5, a number of clamping slots 24 are provided, and the clamping slots 24 are snap-fitted with the clamping rod 803, as Figure 5 shown. Due to the tight snap-fit between the clamping rod 803 and the clamping piece 24, when the rake teeth 7 are working, they will not fall off.

[0033] Working principle: Before using the rake teeth of a hay rake that is convenient for height adjustment, it is necessary to first check the overall situation of the device to ensure that it can work normally. According to Figure 1 - Figure 5 shown, first, by setting the threaded rod 12, the threaded sleeve 13, the fixed rod 20, the sliding rod 22, the sliding sleeve 23, the rotating shaft 10, the movable rod 9 and the support plate 5, by rotating the threaded rod 12, the threaded rod 12 can drive the movement of the threaded sleeve 13. Through the movement of the threaded sleeve 13, the movement of the fixed rod 20 can be driven. Through the movement of the fixed rod 20, the movement of the movable rod 9 can be driven. At the same time, the movable rod 9 is fixedly connected to the sliding sleeve 23, and the sliding sleeve 23 is slidably connected to the sliding rod 22. Therefore, when the movable rod 9 moves, it can drive the support plate 5 to rotate around the connecting shaft 3 as the center point. At the same time, due to the fixation of the support plate 5 and the movable rod 9, when the movable rod 9 drives the support plate 5 to move, it will push the sliding sleeve 23 to descend, so that the support plate 5 can rotate, and thus the support plate 5 can drive the rake teeth 7 to adjust the height.

[0034] Secondly, by setting the bolt assembly 8, pulling the latch rod 803, after separating the latch rod 803 from the card slot 24, it is possible to replace a single rake tooth 7, thereby effectively reducing the increase in cost. At the same time, during reinstallation, by loosening the latch rod 803, the latch rod 803 returns to its original position under the action of the first spring 804, so that the latch rod 803 is re-engaged with the card slot 24, thus completing the installation of the rake tooth 7. At the same time, the connection between the latch rod 803 and the card slot 24 is tight, so that the rake tooth 7 will not fall off during use.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rake tooth for a hay rake facilitating height adjustment, comprising a connecting plate (1) and an extension plate (11), wherein one side surface of the connecting plate (1) is fixedly connected to the extension plate (11); The other side surface of the connecting plate (1) is fixedly connected with a connecting block (2). One side surface of the connecting block (2) far from the connecting plate (1) is rotatably connected with a connecting shaft (3). The surface of the connecting shaft (3) is fixedly connected with a connecting rod (4). One side surface of the connecting rod (4) far from the connecting shaft (3) is fixedly connected with a support plate (5). A plurality of fixing blocks (6) are attached to one side surface of the support plate (5) far from the connecting rod (4). A rake tooth (7) is fixedly installed on one side surface of the fixing block (6) far from the support plate (5). Plug assemblies (8) are symmetrically arranged on both sides of the fixing block (6); It is characterized in that It further includes: A threaded rod (12) is rotatably connected to the middle of one side surface of the connecting plate (1), and a threaded sleeve (13) is provided on the surface of the threaded rod (12); Wherein, limiting rods (14) are symmetrically installed on both sides of the threaded sleeve (13); Wherein, a fixing rod (20) is fixedly connected to the top surface of the threaded sleeve (13). A groove (21) is formed on one side surface of the fixing rod (20) near the top. A sliding rod (22) is fixedly installed inside the groove (21). A sliding sleeve (23) is slidably connected to the surface of the sliding rod (22).

2. The rake teeth for a hay rake facilitating height adjustment according to claim 1, wherein: The plug assembly (8) includes a support block (801) fixedly connected to the fixing block (6). A sleeve (802) is fixedly installed in the middle of the support block (801). A clamping rod (803) is slidably connected inside the sleeve (802). A first spring (804) is sleeved on the surface of the clamping rod (803). One side surface of the first spring (804) is fixedly connected with a slider (805). The other side surface of the first spring (804) is fixedly connected to the sleeve (802). The slider (805) is slidably connected to the sleeve (802). The support block (801) is attached to the support plate (5).

3. The rake teeth for a hay rake that is convenient for height adjustment according to claim 1, wherein: An activity rod (9) is fixedly connected to the other side surface of the support plate (5). One side surface of the activity rod (9) far from the support plate (5) is rotatably connected with a rotating shaft (10). One side surface of the rotating shaft (10) far from the activity rod (9) is fixedly connected to the sliding sleeve (23).

4. The rake teeth for a hay rake that is convenient for height adjustment according to claim 1, wherein: Chutes (15) are formed on both sides of the extension plate (11), and the limiting rods (14) are slidably connected to the chutes (15).

5. The rake teeth for a hay rake facilitating height adjustment according to claim 1, wherein: A plug rod (16) penetrates and is connected to one side surface of the threaded rod (12) far from the extension plate (11). A second spring (17) is sleeved on the surface of the plug rod (16). One side surface of the second spring (17) is fixedly connected with a stabilizing block (18). The other side surface of the second spring (17) is fixedly connected to the threaded rod (12). One side surface of the stabilizing block (18) far from the second spring (17) is attached to the extension plate (11).

6. The rake teeth for a hay rake facilitating height adjustment according to claim 1, characterized in that: On one side surface of the extension plate (11) away from the connecting plate (1), a plurality of slots (19) are formed, and the slots (19) are engaged with the insertion rods (16).

7. The raking teeth for a hay rake facilitating height adjustment according to claim 1, characterized in that: On one side surface of the support plate (5), a plurality of clamping grooves (24) are formed, and the clamping grooves (24) are engaged with the clamping rods (803).

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