Novel locking piece and engine protection shell convenient to disassemble

Abstract

The utility model provides a novel locking piece and an engine protection shell convenient to disassemble, and belongs to the technical field of diesel engines, the novel locking piece comprises a sleeve, the sleeve is provided with a closed end, and a positioning hole is formed in the side wall of the sleeve; the built-in plug pin is arranged in the sleeve in a sleeved mode, an elastic buckle is arranged on the side wall of the built-in plug pin, and when the elastic buckle is located in the positioning hole, the elastic buckle is in an unfolded state; the jacking spring is arranged in the sleeve and located on one side of the closed end; and the baffle ring is arranged on the outer wall of the sleeve in a sleeving manner. Compared with an existing screw needing to be disassembled for multiple times, the phenomenon of screw slipping can occur, and the novel locking piece is easy to disassemble, convenient to use and more suitable for accessories needing to be disassembled and checked for multiple times. The novel locking piece is easy to assemble and disassemble, assembling and disassembling can be completed only by pulling and inserting the built-in plug pin, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diesel engines, and particularly relates to a novel locking piece and an engine protection shell which is convenient to disassemble. Background Art

[0002] Diesel engines are usually more efficient than gasoline engines, and diesel fuel is usually cheaper than gasoline. Coupled with the high fuel efficiency of diesel engines, diesel vehicles have a certain advantage in fuel costs. Diesel engines are favored due to their high fuel economy. The energy density of diesel fuel is higher than that of gasoline, which enables diesel engines to generate more energy under the same volume or mass. Therefore, diesel vehicles usually have a longer cruising range and better fuel economy. Especially in the agricultural machinery field, diesel engines are widely used.

[0003] For diesel engines in the agricultural machinery field, such as agricultural vehicles like tractors and four-wheel tractors, most are equipped with diesel engines. When agricultural vehicles are in motion, they generate relatively loud noises. The existing method for reducing noise is to install a protection shell on the outer surface of the diesel engine, which can not only protect the engine wiring but also reduce noise. For example, the utility model patent with the patent number 201621019612.6 discloses an engine hood for a diesel engine. At the front end of the top of the diesel engine, a cylinder head cover is installed downward. The engine hood includes a hood body. The front edge of the hood body abuts against one side of the cylinder head cover. The hood body and the cylinder head cover together cover the top of the diesel engine. The inner wall of the hood body is attached with sound-absorbing sponge. This engine hood can cover the wiring harness and part of the pipelines of the diesel engine and reduce the local noise at the upper end of the engine.

[0004] However, when this engine hood is applied to agricultural vehicles, due to the high repair rate of the engines and their accessories of agricultural vehicles, when using this engine hood, affected by rain erosion, the screws are prone to rust. Moreover, due to the repeated screwing of the screws on the engine hood, the screws and the threaded holes matching the screws are easily damaged, resulting in thread stripping (thread stripping means that in a threaded connection, the threads at the connection of the screw teeth are worn due to excessive force or other reasons, making the screw teeth unable to engage and the threaded connection unable to be tightened). Disassembling the engine hood is quite time-consuming. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a novel locking piece to avoid the technical problem that the existing screws and the threaded holes matching the screws need to be repeatedly screwed and thread stripping occurs.

[0006] The purpose of the utility model is also to provide an engine protection shell which is convenient to disassemble to avoid the technical problem that it is time-consuming and laborious to disassemble the existing engine hood.

[0007] The technical solution for the utility model to solve the above technical problems is as follows:

[0008] Based on the above first objective, the present utility model provides a new type of locking member, including

[0009] a sleeve, the sleeve is provided with a closed end, and a positioning hole is opened on the side wall of the sleeve;

[0010] a built-in bolt, the built-in bolt is sleeved in the sleeve, an elastic buckle is arranged on the side wall of the built-in bolt, and when the elastic buckle is located in the positioning hole, it is in an unfolded state;

[0011] a jacking spring, the jacking spring is arranged in the sleeve and is located on one side of the closed end; and

[0012] a retaining ring, the retaining ring is sleeved on the outer wall of the sleeve.

[0013] Preferably, the elastic buckle includes a support rod, a rotating shaft and a return spring. A receiving cavity is opened on the side wall of the built-in bolt. The support rod can be embedded in the receiving cavity. The rotating shaft is connected to the support rod and is rotatably arranged in the receiving cavity. The support rod is sleeved on the rotating shaft.

[0014] Preferably, at least 2 groups of elastic buckles are provided and are evenly arranged on the side wall of the built-in bolt.

[0015] Preferably, a retaining cavity is further opened in the sleeve.

[0016] Preferably, a sliding opening is further opened in the sleeve. The sliding opening is communicated with the positioning hole, and the sliding opening is located on one side close to the jacking spring.

[0017] Preferably, a positioning groove is further opened in the sleeve. The positioning groove is located on one side close to the retaining ring.

[0018] Preferably, a sealing ring is arranged on the retaining ring, and the sealing ring fits on the bottom of the retaining ring.

[0019] Based on the above second objective, the present utility model provides an engine protection shell that is easy to disassemble, including a protection shell body and an engine seat body that is provided in a matching manner with the protection shell body. The protection shell body is buckled on the engine seat body; a counterbore is opened on the engine seat body, and the inside of the counterbore is enlarged; an installation hole is provided on the protection shell body, and a new type of locking member is sleeved in the installation hole.

[0020] Preferably, a sound-absorbing sponge is arranged on the inner wall of the protection shell body.

[0021] Preferably, a plurality of wire sorting buckles are arranged on the protection shell body.

[0022] Compared with the prior art, the present utility model has at least the following advantages:

[0023] (1) Compared with the existing screws that need to be disassembled multiple times and are prone to thread stripping, the use of this new type of locking part is simple to disassemble, convenient to use, and more suitable for accessories that need to be disassembled and inspected multiple times.

[0024] (2) Compared with the existing screws that cannot be turned after rusting, the use of this new type of locking part has a good sealing effect, and water stains are not easily penetrated into the new type of locking part; in addition, even if the inside of the new type of locking part rusts, since the assembly and disassembly of the new type of locking part are relatively simple, only by inserting and pulling out the built-in pin can the assembly and disassembly be completed, which saves time and effort. Description of the Drawings

[0025] Figure 1 It is the front view of the new type of locking part.

[0026] Figure 2 It is the left view of the new type of locking part in the first state.

[0027] Figure 3 It is for Figure 2 The A-A half-sectional view of

[0028] Figure 4 It is for Figure 3 The partial enlarged view of -A.

[0029] Figure 5 It is the left view of the new type of locking part in the second state.

[0030] Figure 6 It is for Figure 5 The B-B half-sectional view of

[0031] Figure 7 It is for Figure 6 The partial enlarged view of -B.

[0032] Figure 8 It is the axonometric schematic diagram of the engine protection shell for easy disassembly.

[0033] In the figure: new type of locking part 10, sleeve 100, closed end 110, positioning hole 120, sliding opening 130, retention cavity 140, positioning groove 150, built-in pin 200, elastic buckle 210, support rod 211, rotating shaft 212, return spring 213, accommodation cavity 220, jacking spring 300, retaining ring 400, sealing ring 410, protection shell body 50, mounting hole 510, sound-absorbing sponge 520, wire-clipping buckle 530, engine seat body 60, counterbore 610. Detailed Implementation Manner

[0034] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. The following will further describe the technical solutions of the present utility model in conjunction with the drawings of the embodiments of the present utility model. The present utility model is not limited to the following specific embodiments.

[0035] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] Please refer to Figures 1 to 7 , a new type of locking member, including a sleeve 100, the sleeve 100 is provided with a closed end 110, and a positioning hole 120 is formed on the side wall of the sleeve 100; an internal plug 200, the internal plug 200 is sleeved in the sleeve 100, and an elastic buckle 210 is arranged on the side wall of the internal plug 200. When the elastic buckle 210 is located in the positioning hole 120, it is in an unfolded state; a lifting spring 300, the lifting spring 300 is arranged in the sleeve 100 and is located on one side of the closed end 110; and a retaining ring 400, the retaining ring 400 is sleeved on the outer wall of the sleeve 100.

[0037] During use, in Embodiment 1, a counterbore 610 that matches the new type of locking member 10 is selected. The inside of the counterbore 610 is enlarged. According to the counterbore 610 with different hole diameters, the new type of locking member 10 that matches the counterbore 610 is selected; the specific locking process (the first state): Refer to Figures 2 to 4, the sleeve 100 is sleeved in the counterbore 610. When the closed end 110 of the sleeve 100 extends to the bottom of the counterbore 610, the positioning hole 120 corresponds to the enlarged space inside the counterbore 610. The built-in plug 200 is sleeved in the sleeve 100. When the elastic buckle 210 is inside the sleeve 100, it is in an elastically contracted state. Push the built-in plug 200 to move downward along the sleeve 100. The front section of the built-in plug 200 contacts the jacking spring 300 and compresses the jacking spring 300, and continue to push the built-in plug 200 to move downward. When the elastic buckle 210 is pushed to the positioning hole 120, the elastic buckle 210 rebounds, protrudes from the positioning hole 120, and is clamped into the enlarged space of the counterbore 610. When the elastic buckle 210 is vertically upwardly toggled, since the elastic buckle 210 is clamped into the enlarged space of the counterbore 610, it cannot exit the counterbore 610, and is elastically jacked upward by the jacking spring 300, so that the built-in plug 200 is fixed in the sleeve 100, preventing the built-in plug 200 from shaking in the sleeve 100. And the retaining ring 400 is sleeved on the outer wall of the sleeve 100 to seal the sleeve 100 and the built-in plug 200. Generally, the retaining ring 400 and the outer wall of the sleeve 100 can be fixed by integral molding or connected by screw threading; Disassembly process (second state): See Figures 5 to 7 , continue to push the built-in plug 200 to move vertically downward along the sleeve 100, compress the jacking spring 300, and make the elastic buckle 210 contract into the sleeve 100. When the elastic buckle 210 is completely contracted into the sleeve 100, rotate the built-in plug 200 90° in the sleeve 100, and pull out the built-in plug 200 from the sleeve 100. During the process of pulling out the built-in plug 200, since the built-in plug 200 rotates 90° in the sleeve 100, the elastic buckle 210 will not move to the positioning hole 120, and the elastic buckle 210 continuously contacts and presses against the inner wall of the sleeve 100 and is in a contracted state, thereby achieving the purpose of disassembling the new type of locking member 10.

[0038] Embodiment 2. A counterbore 610 that matches the new locking member 10 is selected. The inside of the counterbore 610 is a threaded hole. A sleeve 100 with a threaded outer wall is selected. According to the counterbore 610 with different hole diameters, the sleeve 100 that matches the counterbore 610 is selected. The specific locking process: Screw the sleeve 100 into the counterbore 610 in a spiral manner, but avoid over-tightening. Just screw the sleeve 100 into the counterbore 610 in a spiral manner. Specific locking process: When the closed end 110 of the sleeve 100 extends to the bottom of the counterbore 610, sleuth the built-in pin 200 into the sleeve 100. When the elastic buckle 210 is inside the sleeve 100, it is in an elastically contracted state. Push the built-in pin 200 to move downward along the sleeve 100. The front section of the built-in pin 200 contacts the jacking spring 300 and squeezes the jacking spring 300, and continues to push the built-in pin 200 to move downward. When the elastic buckle 210 is pushed to the positioning hole 120, the elastic buckle 210 rebounds and protrudes from the positioning hole 120. The elastic buckle 210 is clamped to the threaded side wall of the counterbore 610. When the elastic buckle 210 is vertically pulled upward, since the elastic buckle 210 is clamped to the threaded side wall of the counterbore 610 and the sleeve 100 is screwed with the counterbore 610, even if there is a violent shake, it can prevent the new locking member 10 from loosening in the counterbore 610. And use the retaining ring 400 to sleuth on the outer wall of the sleeve 100 to play a role in sealing the sleeve 100 and the built-in pin 200. Generally, the retaining ring 400 and the outer wall of the sleeve 100 can be fixed by integral molding or can be connected by threaded screwing. Disassembly process: Continue to push the built-in pin 200 to move vertically downward along the sleeve 100, compress the jacking spring 300, and make the elastic buckle 210 contract into the sleeve 100. When the elastic buckle 210 is completely contracted into the sleeve 100, rotate the built-in pin 200 90° in the sleeve 100, and pull out the built-in pin 200 from the sleeve 100. During the process of pulling out the built-in pin 200, since the built-in pin 200 rotates 90° in the sleeve 100, the elastic buckle 210 will not move to the positioning hole 120. The elastic buckle 210 continuously contacts and squeezes the inner wall of the sleeve 100 and is in a contracted state, thereby achieving the purpose of disassembling the new locking member 10.

[0039] Achieved effects:

[0040] (1) Compared with the existing screws that need to be disassembled multiple times and may have the phenomenon of thread slipping, using this new locking member 10 is simple to disassemble, convenient to use, and more suitable for accessories that need to be disassembled and inspected multiple times.

[0041] (2)Compared with the existing screws that cannot be turned after rusting, the use of this new type of locking part 10 has a good sealing effect, and water stains are not easily penetrated into the new type of locking part 10. In addition, even if the inside of the new type of locking part 10 rusts, since the assembly and disassembly of the new type of locking part 10 are relatively simple, only by inserting and pulling out the built-in pin 200 can the assembly and disassembly be completed, which saves time and effort.

[0042] As a further description, refer to Figure 4 , the elastic buckle 210 includes a support rod 211, a rotating shaft 212 and a return spring 213. A receiving cavity 220 is formed on the side wall of the built-in pin 200. The support rod 211 can be embedded in the receiving cavity 220. The rotating shaft 212 is connected to the support rod 211 and is rotatably arranged in the receiving cavity 220. The support rod 211 is sleeved on the rotating shaft 212. When the built-in pin 200 is located in the sleeve 100, the support rod 211 is squeezed to rotate around the rotating shaft 212, and the return spring 213 is forced to contract. The support rod 211 is received into the receiving cavity 220. When the support rod 211 is displaced to the positioning hole 120, the return spring 213 rebounds, driving the support rod 211 to extend outside the positioning hole 120.

[0043] Further, refer to Figure 4 , in order to facilitate the support rod 211 extending from the positioning hole 120 and facilitate the support rod 211 to be received into the receiving cavity 220, a sliding port 130 is further formed in the sleeve 100. The sliding port 130 is communicated with the positioning hole 120, and the sliding port 130 is located on the side close to the jacking spring 300. When the built-in pin 200 is pressed, the jacking spring 300 contracts, the return spring 213 is forced to rotate, the support rod 211 rotates around the rotating shaft 212, the support rod 211 slides downward from the sliding port 130, the built-in pin 200 continues to move downward, the support rod 211 will be completely received into the receiving cavity 220, and the built-in pin 200 is rotated 90°, preventing the jacking spring 300 from jacking up the built-in pin 200 and the support rod 211 from extending out of the positioning hole 120.

[0044] Furthermore, at least two groups of the elastic buckles 210 are provided and are evenly arranged on the side wall of the built-in pin 200. It realizes the function of balancing and fixing the new type of locking part 10 and prevents the built-in pin 200 from shaking in the sleeve 100.

[0045] Further preferably, refer to Figure 6 and Figure 7, To prevent the problem that the built-in bolt 200 completely extends out of the sleeve 100, separates from each other, and is easily lost, a retention cavity 140 is also provided in the sleeve 100. When the built-in bolt 200 is pressed, the support rod 211 is received into the accommodation cavity 220, and the built-in bolt 200 is rotated 90°. After the pressing is released, the lifting spring 300 lifts the built-in bolt 200. As the built-in bolt 200 moves upward in the sleeve 100, when the support rod 211 moves to the retention cavity 140, the return spring 213 elastically returns, pushing the support rod 211 to rotate. The support rod 211 rotates into the retention cavity 140 and engages with the retention cavity 140, and the built-in bolt 200 stops moving in the sleeve 100; when it is necessary for the support rod 211 to extend out of the positioning hole 120, the built-in bolt 200 is pressed again, the lifting spring 300 is squeezed and contracted again, the support rod 211 separates from the retention cavity 140, and the built-in bolt 200 is rotated 90° in the reverse direction. After the pressing is released, the lifting spring 300 lifts the built-in bolt 200. As the built-in bolt 200 moves upward in the sleeve 100, when the support rod 211 moves to the positioning hole 120, the support rod 211 extends out of the positioning hole 120.

[0046] Preferably, referring to Figure 3 , a positioning groove 150 is also provided in the sleeve 100, and the positioning groove 150 is located on the side close to the retaining ring 400. By providing the positioning groove 150, when the support rod 211 is to extend out of the positioning hole 120, the support rod 211 can be extended out of the positioning hole 120 through the positioning of the positioning groove 150.

[0047] Furthermore, referring to Figure 1 , to enhance the sealing effect of the retaining ring 400, a sealing ring 410 is provided on the retaining ring 400, and the sealing ring 410 fits on the bottom of the retaining ring 400.

[0048] Referring to Figure 8 , a detachable engine protection shell includes a protection shell body 50 and an engine seat body 60 provided in a matching manner with the protection shell body 50. The protection shell body 50 is buckled on the engine seat body 60; a counterbore 610 is provided in the engine seat body 60, and the inside of the counterbore 610 is enlarged; an installation hole 510 is provided on the protection shell body 50, and a new type of locking member 10 is sleeved in the installation hole 510. Through the new type of locking member 10, the protection shell body 50 is fixed on the engine seat body 60. When it is necessary to repair the engine and its circuits, the disassembly is simple, time-saving and labor-saving.

[0049] Furthermore, the inner wall of the protective shell body 50 is provided with a sound-absorbing sponge 520 for absorbing the noise generated by the engine.

[0050] Furthermore, the protective shell body 50 is provided with a plurality of wire-dispersing buckles 530 for clamping the engine wires.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of locking member, characterized in that, including a sleeve provided with a closed end, and a positioning hole is formed in the side wall of the sleeve; a built-in bolt sleeved in the sleeve, an elastic buckle is arranged on the side wall of the built-in bolt, and when the elastic buckle is located in the positioning hole, it is in an unfolded state; a jacking spring arranged in the sleeve and located on one side of the closed end; and a retaining ring sleeved on the outer wall of the sleeve.

2. The novel locking member according to claim 1, wherein The elastic buckle includes a support rod, a rotating shaft and a return spring. A receiving cavity is formed in the side wall of the built-in bolt. The support rod can be embedded in the receiving cavity. The rotating shaft is connected to the support rod and is rotatably arranged in the receiving cavity. The support rod is sleeved on the rotating shaft.

3. A novel locking member according to claim 2, characterized in that, A sliding port is further formed in the sleeve, the sliding port is communicated with the positioning hole, and the sliding port is located on the side close to the jacking spring.

4. A novel locking member according to claim 2, characterized in that, At least two groups of elastic buckles are provided and are uniformly arranged on the side wall of the built-in bolt.

5. A novel locking member as claimed in claim 1, characterized in that, A retaining cavity is further formed in the sleeve.

6. A novel locking member according to claim 1, characterized in that, A positioning groove is further formed in the sleeve, and the positioning groove is located on the side close to the retaining ring.

7. A novel locking member according to claim 1, characterized in that, A sealing ring is arranged on the retaining ring, and the sealing ring fits on the bottom of the retaining ring.

8. An engine protection case that is easy to disassemble, characterized in that, including a protective shell body and an engine seat body provided in a matching manner with the protective shell body, the protective shell body is buckled on the engine seat body; a counterbore is formed in the engine seat body, and the inside of the counterbore is in an enlarged shape; an installation hole is formed in the protective shell body, and a new type of locking member is sleeved in the installation hole. The new type of locking member is the new type of locking member according to any one of claims 1-7.

9. The engine protection case that is easy to disassemble according to claim 8, characterized in that, Sound-absorbing sponge is arranged on the inner wall of the protective shell body.

10. The engine protection shell that is easy to disassemble according to claim 8, characterized in that, A plurality of wire separating buckles are arranged on the protective shell body.

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