Plastic-stained protective sleeve for tractor hood lock catch

Abstract

The utility model discloses a plastic-stained protective sleeve for a tractor hood lock catch, which relates to the technical field of protective sleeves and comprises a sleeve protective sleeve part sleeved on the outer circumferential surface of a sleeve and a hook protective sleeve part sleeved on a hook, and rubber bags are mounted on opposite areas of the sleeve protective sleeve part and the hook protective sleeve part. The two rubber bags move relatively until the two rubber bags abut against each other, and when the hook is buckled with a clamping groove in a tractor rack, the two rubber bags lock the hook in the clamping groove in the direction perpendicular to the extending direction of the coupler knuckle. The hook and the clamping groove are buckled in two directions through the design of the two rubber bags, the shaking degree of the hook in the clamping groove is reduced, the deformation probability of the hook is reduced, the service life of the lock catch is prolonged, meanwhile, the protection sleeve part of the hook is designed, and after the hook slightly deforms, the hook can be prevented from falling off. And the lock catch can still be accurately butted when being buckled, so that the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective covers, and particularly relates to a plastic dipping protective cover for a tractor hood lock Background Art

[0002] Tractors play an important role in agricultural and construction machinery. As a key component, the hood lock of the tractor is responsible for fixing the hood to protect the engine and other important components. During the actual use of the tractor, the hood lock is often exposed to harsh environmental conditions, including high temperature, low temperature, moisture, mud, and chemicals. These environmental factors have a significant impact on the performance and service life of the lock

[0003] The lock is often subjected to mechanical pressure and corrosion, and is prone to deformation. This deformation will affect the normal function of the lock, resulting in the hood not being firmly fixed. After the lock is deformed, it may not be able to be normally latched or disengaged, resulting in a decline in the fixing performance of the hood. Therefore, we propose a plastic dipping protective cover for a tractor hood lock Summary of the Utility Model

[0004] In order to solve the above technical problems existing in the prior art, the utility model provides a plastic dipping protective cover for a tractor hood lock

[0005] To achieve the above object, the utility model provides the following technical solution: A plastic dipping protective cover for a tractor hood lock includes a sleeve sheath portion sleeved on the outer circumferential surface of the sleeve, a hook sheath portion sleeved on the hook. Rubber capsules are installed in the areas where the sleeve sheath portion and the hook sheath portion face each other. The two rubber capsules move relative to each other until they abut against each other. When the hook is latched with the card slot on the tractor frame, the two rubber capsules lock the hook in the card slot in the direction perpendicular to the extension of the hook tongue

[0006] Preferably, the sleeve sheath portion and the hook sheath portion are connected by a connecting sheath portion

[0007] Preferably, the rubber capsule is composed of a fixed boss and a rubber sleeve. The fixed boss is made of a hard material, and the rubber sleeve is made of a flexible material such as rubber. The fixed boss is parallel to the extension direction of the hook tongue

[0008] Preferably, a first V-shaped groove with an upward opening and a second V-shaped groove with a downward opening are formed between the two rubber capsules

[0009] Preferably, a clamping plate is arranged in the middle of the inner cavity of the rubber sleeve. Connecting plates are rotatably connected to both the upper and lower sides of the clamping plate. The other ends of the connecting plates are slidably assembled on the fixed boss along the extension direction of the hook tongue. A spring is installed between the clamping plate and the fixed boss

[0010] Preferably, a guide plate is installed on the fixed boss along the extension direction of the hook tongue, a guide groove is opened on the guide plate, a guide rod is installed at a position corresponding to the guide groove, and the guide rod is slidably assembled in the guide groove.

[0011] Preferably, both sides of the hook sheath portion are integrally formed with lateral extension portions perpendicular to the extension direction of the hook tongue, and the upper end of the hook sheath portion is integrally formed with a longitudinal extension portion along the extension direction of the hook tongue.

[0012] Preferably, the outer circumferential surface of the sleeve jacket portion is provided with a first plastic coating layer.

[0013] Preferably, a second plastic coating layer is provided on the connecting sheath portion.

[0014] Compared with the prior art, the utility model provides a tractor hood lock plastic-coated protective cover, which has the following beneficial effects:

[0015] (1) By arranging two rubber bags to fix the hook in a direction perpendicular to the extension of the hook tongue, the hook and the slot are locked in two directions, which reduces the shaking of the hook in the slot and the probability of deformation of the hook. At the same time, the vibration amplitude of the hook in the direction of extension of its hook tongue is reduced, the frequency of extension and compression of the tension spring is reduced, and the service life of the tension spring is extended.

[0016] (2) The softness of the rubber cover is utilized to fill the remaining area between the hook and the card slot, thereby reducing the gap between the hook and the card slot and further reducing the degree of shaking of the hook in the card slot.

[0017] (3) A first V-shaped groove with an opening upward is formed between the two rubber bags, which is convenient for the hook to enter the card slot. A second V-shaped groove with an opening downward is also formed between the two rubber bags, which is convenient for the hook to leave the card slot, thereby improving the practicality of the protective cover.

[0018] (4) A transverse extension portion and a longitudinal extension portion are provided on the hook sheath portion to increase the contact area between the hook and the card slot, which can compensate for the slight deformation of the hook and ensure that the lock can be accurately docked when buckled, thereby improving the use range and functional stability of the lock.

[0019] (5) The sleeve is protected by providing a first plastic-coated layer and a second plastic-coated layer, and the hook is protected by providing a hook sheath portion, thereby reducing the contact area between the lock and the environment and extending the service life of the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic assembly diagram of the entire dip-molded protective cover and the tractor hood latch in the embodiment;

[0022] Figure 2 It is a schematic structural diagram of the tractor hood latch in the embodiment;

[0023] Figure 3 It is a schematic structural diagram of the entire dip-molded protective cover in the embodiment;

[0024] Figure 4 It is a schematic internal structure diagram of the rubber bladder in the embodiment;

[0025] Figure 5 It is a schematic structural diagram of the entire dip-molded protective cover from another perspective in the embodiment;

[0026] Figure 6 It is a schematic structural diagram of the first dip-molded layer and the second dip-molded layer in the embodiment.

[0027] In the figure: 1. Sleeve sheath part; 2. Hook sheath part; 21. Transverse extension part; 22. Longitudinal extension part; 3. Rubber bladder; 31. Fixed boss; 32. Rubber leather sleeve; 4. Sleeve; 5. Hook; 6. Clamp plate; 7. Connecting plate; 8. Spring; 9. Guide plate; 10. Guide groove; 11. Connecting sheath part; 12. First dip-molded layer; 13. Second dip-molded layer. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0029] This embodiment proposes a dip-molded protective cover for a tractor hood latch, as Figures 1 to 6As shown in the figure, it includes a casing sheath part 1 sleeved on the outer circumferential surface of the casing 4, a hook sheath part 2 sleeved on the hook 5, and the tractor hood and the frame are connected and fixed by buckling the hook 5 into the clamping groove of the tractor frame. In actual application, the working environment of the tractor is generally bumpy. The hook 5 is only buckled into the clamping groove on the frame in the extending direction of its hook tongue, and there is no corresponding fixation in the direction perpendicular to the extending direction of the hook tongue. After the tractor vibrates, the hook 5 is likely to shake in the clamping groove of the frame, and even cause deformation of the hook tongue. On the other hand, if the hook 5 vibrates for a long time in the extending direction of its hook tongue, the tension spring connected to the casing 4 will be stretched and compressed frequently, resulting in metal fatigue and reducing the service life of the tension spring. Therefore, rubber capsules 3 are installed in the areas where the casing sheath part 1 and the hook sheath part 2 face each other. The casing sheath part 1 and the hook sheath part 2 are connected by a connecting sheath part 11. The two rubber capsules 3 move relative to each other until they abut against each other, thereby locking the hook 5 in the clamping groove in the direction perpendicular to the extending direction of the hook tongue, and realizing the buckling of the hook 5 and the clamping groove in two directions. This not only reduces the shaking amplitude of the hook 5 in the clamping groove, but also reduces the vibration amplitude of the hook 5 in the extending direction of its hook tongue, and prolongs the service life of the tension spring.

[0030] Utilizing the soft characteristic of the rubber capsule 3 itself, after the hook 5 and the clamping groove are buckled, the rubber capsule 3 will fill the remaining area between the hook 5 and the clamping groove, reducing the gap between the hook 5 and the clamping groove, further reducing the shaking degree of the hook 5 in the clamping groove, and the rubber capsule 3 can also absorb part of the acting force generated by vibration to protect the hook 5.

[0031] On the basis of the above solution, the rubber capsule 3 is composed of a fixed boss 31 and a rubber sleeve 32. The fixed boss 31 is made of a hard material, and the rubber sleeve 32 is made of a flexible material such as rubber. The fixed boss 31 is parallel to the extending direction of the hook tongue.

[0032] In order to improve the smoothness of the hook tongue entering the clamping groove, after the two rubber capsules 3 abut against each other, a first V-shaped groove with an upward opening is formed between the two rubber capsules 3. The hook tongue can smoothly enter the clamping groove under the guidance of the two hypotenuses of the V-shaped groove. Similarly, in order to facilitate the hook tongue to smoothly leave the clamping groove, after the two rubber capsules 3 abut against each other, a second V-shaped groove with a downward opening is formed between the two rubber capsules 3.

[0033] Specifically, a clamping plate 6 is arranged in the middle of the inner cavity of the rubber sheath 32. Connecting plates 7 are rotatably connected to both the upper and lower sides of the clamping plate 6. The other ends of the connecting plates 7 are slidably assembled on the fixed boss 31 along the extending direction of the hook tongue. A spring 8 is installed between the clamping plate 6 and the fixed boss 31. When the rubber sheath 32 is not subjected to external force, the spring 8 exerts a thrust on the clamping plate 6, and the clamping plate 6 pushes the middle part of the rubber sheath 32 to move. When the two rubber sheaths 32 are in contact with each other, a first V-shaped groove with an upward opening and a second V-shaped groove with a downward opening are formed. When the card slot comes into contact with the rubber sheath, the rubber sheath will exert a force on the connecting plate 7. On the one hand, the connecting plate 7 will drive the clamping plate 6 to contract inward, facilitating the engagement between the card slot and the hook 5. On the other hand, the connecting plate 7 protects the spring 8 to prevent the card slot from coming into contact with the spring 8.

[0034] On the basis of the above solution, a guide plate 9 is installed on the fixed boss 31 along the extending direction of the hook tongue. A guide groove 10 is formed in the guide plate 9. A guide rod is installed at a position corresponding to the guide groove 10 on the connecting plate 7, and the guide rod is slidably assembled in the guide groove 10.

[0035] If the hook 5 is slightly deformed, in order to achieve the normal engagement between the hook 5 and the card slot, we integrally form lateral extension parts 21 perpendicular to the extending direction of the hook tongue on both sides of the hook sheath part 2 of the hook, and integrally form a longitudinal extension part 22 along the extending direction of the hook tongue at the upper end of the hook sheath part 2, increasing the contact area between the hook 5 and the card slot. The extended parts can guide the lock, ensuring that the lock can be accurately docked during fastening, realizing the compensation for the slight deformation of the hook 5, and facilitating the normal engagement between the hook 5 and the card slot.

[0036] Since the production environment of the tractor is relatively harsh, if the sleeve sheath part 1 frequently comes into contact with rainwater and air, it is prone to corrosion and damage, which may further lead to the dropping of the entire protective cover. Therefore, a first plastic dipping layer 12 is provided on the outer circumferential surface of the sleeve sheath part 1. The first plastic dipping layer 12 is coated on the outer circumferential surface of the sleeve sheath part 1 through the plastic dipping process. Similarly, a second plastic dipping layer 13 is provided on the connecting sheath part 11; the sleeve sheath part 1 is hermetically protected by the first plastic dipping layer 12 and the second plastic dipping layer 13, reducing the contact between the sleeve sheath part 1 and rainwater and air, and extending the service life of the sleeve sheath part 1.

[0037] It should be noted that the hook sheath part 2 and the rubber bladder 3 are not subjected to plastic dipping treatment.

[0038] In the description of the present utility model, the terms "first", "second", "another", and "yet another" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0040] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A tractor hood lock plastic-coated protective cover, comprising a sleeve cover portion (1) sleeved on the outer circumference of a sleeve (4), and a hook cover portion (2) sleeved on a hook (5), characterized in that: Rubber bags (3) are installed on the areas where the sleeve sheath portion (1) and the hook sheath portion (2) face each other. The two rubber bags (3) move relative to each other until they abut against each other. When the hook (5) is engaged with a slot on the tractor frame, the two rubber bags (3) lock the hook (5) in the slot in a direction perpendicular to the extension of the hook tongue.

2. The tractor hood lock buckle plastic-coated protective cover according to claim 1, characterized in that: The sleeve sheath portion (1) and the hook sheath portion (2) are connected via a connecting sheath portion (11).

3. The tractor hood lock buckle plastic-coated protective cover according to claim 1, characterized in that: The rubber bag (3) is composed of a fixed boss (31) and a rubber sheath (32). The fixed boss (31) is made of a hard material, and the rubber sheath (32) is made of a flexible material such as rubber. The fixed boss (31) is parallel to the extension direction of the hook tongue.

4. The tractor hood lock buckle plastic-coated protective cover according to claim 1, characterized in that: A first V-shaped groove opening upward and a second V-shaped groove opening downward are formed between the two rubber bags (3).

5. The tractor hood lock buckle plastic-coated protective cover according to claim 3, characterized in that: A clamping plate (6) is arranged in the middle of the inner cavity of the rubber leather sleeve (32), and the upper and lower sides of the clamping plate (6) are rotatably connected to connecting plates (7), and the other end of the connecting plate (7) is slidably assembled on the fixed boss (31) along the extension direction of the hook tongue, and a spring (8) is installed between the clamping plate (6) and the fixed boss (31).

6. The tractor hood lock buckle plastic-coated protective cover according to claim 5, characterized in that: A guide plate (9) is installed on the fixed boss (31) along the extension direction of the hook tongue, a guide groove (10) is provided on the guide plate (9), and a guide rod is installed at a position corresponding to the guide groove (10) on (7), and the guide rod is slidably assembled in the guide groove (10).

7. The tractor hood lock buckle plastic-coated protective cover according to claim 1, characterized in that: Both sides of the hook sheath part (2) are integrally formed with transverse extension parts (21) perpendicular to the extension direction of the hook tongue, and the upper end of the hook sheath part (2) is integrally formed with a longitudinal extension part (22) along the extension direction of the hook tongue.

8. The tractor hood lock plastic-coated protective cover according to claim 1, characterized in that: The outer circumferential surface of the sleeve jacket portion (1) is provided with a first plastic-coated layer (12).

9. The tractor hood lock buckle plastic-coated protective cover according to claim 2, characterized in that: A second plastic-coated layer (13) is provided on the connecting sheath portion (11).

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