A tailgate locking component for a mining engineering vehicle

Abstract

This utility model discloses a tailgate locking component for a mining engineering vehicle, including a mounting bracket mounted on the vehicle frame and a fixed seat mounted on the tailgate. A locking tongue is fixedly connected to the middle of the fixed seat. A stop is rotatably connected inside the mounting bracket, and a rotating shaft is sleeved near the bottom. The rotating shaft is bolted to the mounting bracket, so that the top of the stop locks the end of the locking tongue to achieve a stop and lock. A limiting component is movably connected to the inner bottom of the mounting bracket to limit and fix the bottom of the stop during locking. This utility model utilizes the gravity of the tailgate opening and closing when tilted to drive the locking tongue to press against the top of the stop, so that the bottom of the stop can rotate back and press against the limiting block, thereby achieving a rapid locking operation, improving the stability and structural strength of the engineering vehicle in high-intensity operations, and extending the overall service life.

Description

Technical Field

[0001] This utility model relates to the field of engineering vehicle parts application technology, and in particular to a tailgate locking component for a mining engineering vehicle. Background Technology

[0002] As a core transportation equipment in mining operations, mining vehicles need to operate under high intensity for extended periods in rugged, vibrating environments. The tailgate, a critical component for material handling and sealing, places extremely high demands on the structural stability, impact resistance, and durability of its locking mechanism. The performance of the tailgate locking mechanism directly affects the safety of materials during transportation, operational efficiency, and the reliability of the equipment, making it one of the essential components ensuring the normal operation of mining vehicles.

[0003] However, existing tailgate locking mechanisms for mining vehicles generally suffer from design flaws: some locking mechanisms employ a single snap-fit ​​structure, lacking an effective limiting and fixing mechanism after locking. Under long-term severe vibration and material impact, they are prone to loosening, displacement, and even accidental opening of the tailgate, leading to material leakage. Other locking mechanisms have cumbersome transmission structures, limiting the rotation range of the stop, which can cause jamming during unlocking and make operation inconvenient. Furthermore, the installation structure of traditional locking mechanisms lacks stability, easily leading to deformation of the mounting base and loosening of connecting bolts under continuous loads, further reducing the service life and safety of the locking mechanisms and failing to meet the stringent operational requirements of mining vehicles. Therefore, this utility model proposes a tailgate locking mechanism for mining vehicles. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a tailgate locking component for mining engineering vehicles, so as to achieve stable locking of the tailgate, improve the impact resistance and reliability of the locking structure, simplify the operation process, and adapt to the harsh working environment of mining engineering vehicles.

[0005] To solve the above-mentioned technical problems, the present invention provides a tailgate locking component for a mining engineering vehicle, including a mounting bracket installed on the vehicle frame and a fixed seat installed on the tailgate. A locking tongue is fixedly connected to the middle of the fixed seat. A stop is rotatably connected inside the mounting bracket, and a rotating shaft is sleeved near the bottom. The rotating shaft is bolted to the mounting bracket so as to achieve a stop and lock by using the top of the stop to lock the end of the locking tongue. The inner bottom of the mounting bracket is movably connected to a limiting component, which is used to limit and fix the bottom of the locking stop.

[0006] The present invention is further configured such that: the mounting bracket is symmetrically fixedly connected to both sides of the mounting bracket, and each of the ear blocks is provided with triangularly distributed mounting holes.

[0007] Through the above technical solution, the triangularly distributed mounting holes form a stable triangular support structure at the connection point between the lugs and the frame, which can effectively disperse the impact force and vibration load borne by the locking components during operation, and prevent the mounting frame from shifting or loosening. At the same time, the symmetrically arranged lugs ensure the uniformity of the installation force, improve the stability of the connection between the mounting frame and the frame, and provide a reliable installation foundation for the overall locking structure.

[0008] The present invention is further configured such that: the bottom of the stop is bent and can be tightly pressed against the limiting component; the top of the stop is inclined; and the bottom end face of the latch has an inclined surface that matches the inclined surface of the stop.

[0009] Through the above technical solution, the matching bevel design of the top of the stop and the bottom of the latch allows the latch to push the stop to rotate around the pivot through the guiding force generated by the bevel fit during the tailgate closing process, realizing automatic guidance of the locking action without the need for additional precise alignment operation; while the bent structure at the bottom of the stop can form a tight abutment fit with the limiting component, increasing the contact area, improving the stability of the limiting fixation, preventing the stop from moving in a vibration environment, and ensuring the continuous reliability of the locked state.

[0010] The present invention is further configured such that: the limiting component includes a limiting block, one end of the limiting block is fixedly connected to a drive shaft, and the other end is fixedly connected to an auxiliary shaft. The drive shaft and the auxiliary shaft both pass through positioning holes opened at corresponding locations on the two side walls of the mounting frame. A spring is sleeved on the outer wall of the auxiliary shaft, and the two ends of the spring abut against the side wall of the mounting frame and the end face of the limiting block, respectively.

[0011] The above technical solution facilitates the axial movement of the drive shaft and auxiliary shaft in the positioning hole of the mounting bracket, and the spring enables the limit block to block and limit the bottom of the stop when locking, thereby limiting and fixing the top lock tongue.

[0012] The present invention is further configured such that: the top of the limiting block is provided with a slot, and the bent end face of the stop member is provided with a protrusion that matches the slot.

[0013] Through the above technical solution, the slotting allows the bottom protrusion of the stop to rotate within a certain range in the mounting bracket via a rotating shaft when the stop is unlocked, so that the top of the stop can disengage under the pressure of the bolt, thereby enabling the unlocking operation of the bolt.

[0014] The present invention is further configured such that: an operating groove is provided on the end face of the drive shaft, and the operating groove is provided with an arc-shaped transition structure.

[0015] Through the above technical solution, the operating slot can be adapted to common tools such as wrenches, making it convenient for operators to drive the drive shaft with tools, thereby enabling the limit block to move axially inside the mounting bracket, so that the locking block on the auxiliary shaft can engage or disengage from the locking slot, and thus the locking component can be used to lock and unlock the stop, while reducing stress concentration, improving the structural strength of the drive shaft, and extending its service life.

[0016] The present invention is further configured such that: a locking block is fixedly connected to the outer wall of the auxiliary shaft, and the locking block can be movably engaged with the locking groove opened on the inner wall of the positioning hole.

[0017] Through the above technical solution, the engagement of the locking block and the locking groove can limit the axial movement range of the auxiliary shaft, so that the limiting block can stably limit the movement of the stop and ensure the structural integrity of the limiting component. At the same time, the locking block can move along the set trajectory in the locking groove without affecting the reciprocating motion of the auxiliary shaft driving the limiting block to unlock and lock, thus realizing the dual functions of limiting and guiding.

[0018] The beneficial effects of this utility model are as follows: 1. The tailgate locking component of the mining engineering vehicle proposed in this utility model utilizes the gravity of the tailgate opening and closing when tilted to drive the locking tongue to press the top of the stop component, so that the bottom of the stop component can be rotated and reset and pressed against the limit block, thereby realizing a fast locking operation, improving the stability and structural strength of the engineering vehicle in high-intensity operations, and increasing the overall service life. 2. The tailgate locking component of the mining engineering vehicle proposed in this utility model adopts a combination of rigid connection and elastic fit for all transmission components, resulting in high structural strength and good wear resistance. It can adapt to the harsh working environment of mines, extend the service life of the locking component, and reduce maintenance costs. Attached Figure Description

[0019] Figure 1 This is a first structural diagram of a tailgate locking component for a mining engineering vehicle according to the present invention; Figure 2 This is a second structural diagram of a tailgate locking component for a mining engineering vehicle according to the present invention; Figure 3 This is the third structural diagram of a tailgate locking component for a mining engineering vehicle according to the present invention; Figure 4 This is a first exploded view of a tailgate locking component for a mining engineering vehicle according to this utility model; Figure 5 This is a second exploded view of a tailgate locking component for a mining engineering vehicle according to this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a structural diagram of the limiting gripping mechanism in the tailgate locking component of a mining engineering vehicle according to the present invention.

[0020] In the diagram: 1. Mounting bracket; 11. Ear block; 12. Positioning hole; 121. Engaging groove; 2. Fixing base; 3. Locking tongue; 4. Stop; 5. Rotating shaft; 6. Limiting assembly; 61. Limiting block; 611. Slot; 62. Drive shaft; 621. Operating groove; 63. Auxiliary shaft; 631. Locking block; 64. Spring. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] like Figures 1-4 As shown, a tailgate locking component for a mining engineering vehicle includes a mounting bracket 1 installed on the vehicle frame and a fixing seat 2 installed on the tailgate. Lugs 11 are symmetrically fixedly connected to both sides of the mounting bracket 1, and triangularly distributed mounting holes are provided on each lug 11. The triangularly distributed mounting holes form a stable triangular support structure at the connection point between the lugs 11 and the vehicle frame, which can effectively disperse the impact force and vibration load borne by the locking component during operation, and prevent the mounting bracket 1 from shifting or loosening. At the same time, the symmetrically arranged lugs 11 ensure the uniformity of the installation force, improve the stability of the connection between the mounting bracket 1 and the vehicle frame, and provide a reliable installation foundation for the overall locking structure. A locking tongue 3 is fixedly connected to the middle of the fixed base 2. A stop 4 is rotatably connected inside the mounting bracket 1, and a rotating shaft 5 is sleeved near the bottom. The rotating shaft 5 is bolted to the mounting bracket 1 so that the top of the stop 4 can stop and lock the end of the locking tongue 3. The bottom of the stop 4 is bent and can tightly abut against the limiting component 6. The top of the stop 4 is inclined, and the bottom end face of the locking tongue 3 has an inclined surface that matches the inclined surface of the stop 4. The matching inclined surface design of the top of the stop 4 and the bottom of the locking tongue 3 allows the locking tongue 3 to push the stop 4 to rotate around the rotating shaft 5 through the guiding force generated by the inclined surface during the closing of the tailgate, realizing automatic guidance of the locking action without the need for additional precise alignment operation. The bent structure at the bottom of the stop 4 can form a tight abutment with the limiting component 6, increasing the contact area, improving the stability of the limiting fixation, preventing the stop 4 from moving in a vibration environment, and ensuring the continuous reliability of the locked state.

[0023] like Figures 4-7As shown, the bottom of the mounting bracket 1 is movably connected to a limiting component 6, which is used to limit and fix the bottom of the stop 4 in the locked position. The limiting component 6 includes a limiting block 61, the top of which is provided with a slot 611. The bent end face of the stop 4 is provided with a protrusion that matches the slot 611. The slot 611 allows the bottom protrusion of the stop 4 to rotate within the mounting bracket 1 through the rotating shaft 5 in the unlocked state, so that the top of the stop 4 can be disengaged from the locking tongue 3 under the pressure, thereby realizing the unlocking operation of the locking tongue 3. One end of the limiting block 61 is fixedly connected to the drive shaft 62. The end face of the drive shaft 62 is provided with an operating groove 621, and the operating groove 621 is set with an arc transition structure. The operating groove 621 can be adapted to common tools such as wrenches, so that the operator can drive the drive shaft 62 with the tools, thereby enabling the limiting block 61 to move axially inside the mounting bracket 1, so that the locking block 631 on the auxiliary shaft 63 can engage or disengage from the locking groove 121. Thus, the locking and unlocking operation of the stop 4 can be realized by using the limiting component 6, while reducing stress concentration, improving the structural strength of the drive shaft 62, and extending its service life. The other end is fixedly connected to an auxiliary shaft 63, and a locking block 631 is fixedly connected to the outer wall of the auxiliary shaft 63. The locking block 631 is movably engaged with the locking groove 121 opened in the inner wall of the positioning hole 12. The engagement of the locking block 631 with the locking groove 121 can limit the axial movement range of the auxiliary shaft 63, so that the limiting block 61 can stably limit the movement of the stop 4 and ensure the structural integrity of the limiting component 6. At the same time, the locking block 631 can move along a set trajectory in the locking groove 121 without affecting the reciprocating motion of the auxiliary shaft 63 driving the limiting block 61 to unlock and lock, thus realizing the dual functions of limiting and guiding. Both the drive shaft 62 and the auxiliary shaft 63 pass through the corresponding positioning holes 12 on the two side walls of the mounting bracket 1. A spring 64 is sleeved on the outer wall of the auxiliary shaft 63, and the two ends of the spring 64 abut against the side wall of the mounting bracket 1 and the end face of the limiting block 61, respectively, so as to facilitate the mutual cooperation of the drive shaft 62 and the auxiliary shaft 63 to move axially in the positioning holes 12 of the mounting bracket 1. The spring 64 also enables the limiting block 61 to block and limit the bottom of the stop 4 when locked, thereby limiting and fixing the top locking tongue 3 of the stop 4.

[0024] When using this utility model, the mounting bracket 1 and the fixing seat 2 are first installed on the vehicle frame and the tailgate respectively. When the cargo bed is reset, the tailgate closes, and the bottom of the tailgate carries the locking tongue 3 to press the top of the stop 4, so that the stop 4 can rotate on the mounting bracket 1 through the rotating shaft 5. As the end face of the locking tongue 3 moves to the other side of the stop 4, the bottom of the stop 4 is used to reset the stop 4. At this time, the top of the stop 4 is in contact with the locking tongue 3, and its bottom is in contact with the limiting block 61 inside the locking groove 121 by the locking block 631, so as to realize the locking operation of the locking tongue 3. When the cargo bin needs to be lifted, the auxiliary shaft 63 is driven by the drive shaft 62 to slide in the positioning hole 12, causing the locking block 631 to disengage from the locking groove 121 and rotate the drive shaft 62. This causes the locking block 631 to press against the side wall of the mounting bracket 1 by the compression elasticity of the spring 64 after being squeezed. At this time, the cargo bin drives the locking tongue 3 to squeeze the stop 4, and the bottom bend of the stop 4 passes through the slot 611 through the protrusion, so that the top of the stop 4 can disengage from the locking tongue 3, thereby realizing the unlocking operation of the locking tongue 3.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tailgate locking device for a mining engineering vehicle, comprising a mounting bracket (1) mounted on the vehicle frame and a fixing seat (2) mounted on the tailgate, characterized in that: A locking tongue (3) is fixedly connected to the middle position of the fixed base (2), and a stop (4) is rotatably connected inside the mounting bracket (1). A rotating shaft (5) is sleeved near the bottom position and bolted to the mounting bracket (1) so as to stop and lock the end of the locking tongue (3) by using the top of the stop (4). The inner bottom of the mounting bracket (1) is movably connected to a limiting component (6) so as to limit and fix the bottom of the locked stop (4) using the limiting component (6).

2. A tailgate lock closure for a mine engineering vehicle as claimed in claim 1, characterised in that: The mounting bracket (1) is symmetrically fixedly connected to ear blocks (11) on both sides, and each ear block (11) is provided with triangularly distributed mounting holes.

3. The tailgate locking device for a mining engineering vehicle according to claim 1, characterized in that: The bottom of the stop (4) is bent and can be tightly pressed against the limiting component (6). The top of the stop (4) is inclined and the bottom end face of the latch (3) is provided with an inclined surface that matches the inclined surface of the stop (4).

4. A tailgate lock closure for a mine engineering vehicle as claimed in claim 3 wherein: The limiting component (6) includes a limiting block (61). One end of the limiting block (61) is fixedly connected to a drive shaft (62), and the other end is fixedly connected to an auxiliary shaft (63). The drive shaft (62) and the auxiliary shaft (63) both pass through positioning holes (12) opened at corresponding locations on both sides of the mounting frame (1). A spring (64) is sleeved on the outer wall of the auxiliary shaft (63), and the two ends of the spring (64) abut against the side wall of the mounting frame (1) and the end face of the limiting block (61), respectively.

5. A tailgate lock closure for a mine engineering vehicle as claimed in claim 4 wherein: The top of the limiting block (61) is provided with a slot (611), and the bent end face of the stop (4) is provided with a protrusion that matches the slot (611).

6. A tailgate lock closure for a mine service vehicle as claimed in claim 4 wherein: The end face of the drive shaft (62) is provided with an operation groove (621), and the operation groove (621) is provided with an arc-shaped transition structure.

7. A tailgate lock closure for a mine service vehicle as claimed in claim 4 wherein: The outer wall of the auxiliary shaft (63) is fixedly connected to a locking block (631), and the locking block (631) can be movably engaged with the locking groove (121) opened on the inner wall of the positioning hole (12).

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