A loader blind spot protection device
By setting up a buffer mechanism outside the loader's blind spot, and using damping rods and shock absorber springs to absorb impact energy, the problem of delayed buffering effect in the loader's blind spot is solved, achieving earlier energy consumption and better protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SHANCHI AGRICULTURAL EQUIPMENT CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
AI Technical Summary
The existing anti-collision structure of loaders only gradually provides cushioning after an obstacle directly collides with the U-shaped pad. The cushioning effect is delayed, and the collision energy is easily transferred to the loader structure, resulting in poor blind spot cushioning.
A buffer mechanism is installed outside the blind spot of the loader, including a contact plate, a damping rod, and a shock-absorbing spring. When the contact plate comes into contact with an obstacle, the damping rod and the shock-absorbing spring work together to absorb the impact energy, and the push plate and rubber pad actively buffer the impact, thus dissipating the collision energy in advance.
It improves the buffer protection effect of the loader's blind spot, increases energy absorption efficiency, and reduces the impact of blind spot impacts on the loader's structure.
Smart Images
Figure CN224431542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective device technology, specifically to a blind spot protection device for a loader. Background Technology
[0002] Loaders are a type of engineering machinery widely used in construction and material handling. They are usually equipped with a front-loading bucket and are controlled by a hydraulic system for lifting and tilting. They are mainly used for loading and unloading bulk materials such as sand, ore, and coal. They mostly use wheeled or tracked chassis, are powerful and flexible in operation, and are commonly found in construction sites, mines, ports and other scenarios. They can complete operations independently or work with transport vehicles to improve efficiency. Some models can also be equipped with different attachments to meet diverse needs.
[0003] Chinese patent discloses a loader with an anti-collision structure (publication number: CN218990290U). This device installs U-shaped pads from an anti-collision assembly on both sides of the loader's rear. These U-shaped pads slide within a mounting housing. When the loader's rear impacts ore, the U-shaped pads are stressed, causing a spring to contract. The driver can see the overall change in the U-shaped pads from the side. When the spring undergoes elastic deformation, a telescopic rod guides it, resulting in greater stability during the elastic deformation process. This anti-collision assembly protects the loader's rear, reducing the risk of damage from impacts with rocks or ore due to the large blind spot at the loader's rear. However, this structure also has the following problems:
[0004] The above-mentioned anti-collision structure can only gradually buffer the impact when the obstacle directly collides with the U-shaped pad and moves a certain distance. At this time, part of the collision energy is easily transferred to the loader structure, and the buffering effect is relatively delayed. Therefore, a loader blind spot protection device is proposed to improve the above structure. Utility Model Content
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A blind spot protection device for a loader includes a mounting mechanism, and a buffer mechanism is provided on the outside of the mounting mechanism;
[0007] The buffer mechanism includes a contact plate, the surface of which is symmetrically provided with openings, and a pad is connected through the interior of each opening. A push plate is glued and fixed to one side of the surface of each pad, and a push rod is fixedly connected to the middle of the other side of the surface of each pad.
[0008] The push rod is perpendicular to the length of the contact plate, and a fixed sleeve is fixedly installed on the middle of the surface of the push rod. The top and bottom surfaces of the fixed sleeve are rotatably connected to a first connecting rod, and a slider is rotatably connected between the two first connecting rods.
[0009] As a further embodiment of this utility model: the top and bottom surfaces of the slider are rotatably connected to a second connecting rod, the second connecting rod and the first connecting rod both rotate around the same axis, and the two second connecting rods are rotatably connected to a clamping plate at the ends away from the slider, and the two clamping plates are fixedly installed on the surface of the contact plate.
[0010] As a further embodiment of this utility model: the installation mechanism includes a crossbeam, and fixing ears are fixedly installed on both sides of the outer wall of the crossbeam. The upper and lower ends of the surface of the fixing ears are opened. Extension plates are welded and fixed on both sides of the top surface of the crossbeam. The extension plates are L-shaped in general.
[0011] As a further embodiment of this utility model: the side wall of the extension plate is welded and fixed with a diagonal brace, the other end of the diagonal brace is welded and fixed with a crossbeam, the horizontal plane of the extension plate is provided with a plurality of first mounting holes, the vertical plane of the extension plate is provided with a plurality of second mounting holes, and the first mounting holes and the second mounting holes are arranged equidistantly along the length direction of the extension plate.
[0012] As a further embodiment of this utility model: a first sliding groove is symmetrically provided in the middle of the surface of the crossbeam, and a second sliding groove is provided on the surface of the crossbeam between the fixing lug and the first sliding groove. The first sliding groove extends in the length direction of the crossbeam as a whole, and the interior of the second sliding groove extends in the thickness direction of the crossbeam.
[0013] As a further embodiment of this utility model: the inner walls of the two first sliding grooves are respectively inserted into and slidably connected to the slider, and the inner walls of the two second sliding grooves are respectively penetrated and slidably connected to the push rod.
[0014] As a further embodiment of this utility model: damping rods are fixedly connected to both sides of the crossbeam on the surface away from the extension plate by bolts. The extension end of the damping rod is fixedly installed to the contact plate by bolts. A shock-absorbing spring is sleeved on the outside of the damping rod, and the two ends of the shock-absorbing spring abut against the contact plate and the crossbeam respectively.
[0015] The beneficial effects of this utility model are:
[0016] (1) This utility model sets a contact plate outside the blind zone of the loader. When the contact plate contacts an obstacle, the shock-absorbing springs on both sides cooperate with the damping rod to support the contact plate and gradually offset the impact. During this period, the push plates on both sides of the contact plate can extend and drive the rubber pad to move actively toward the obstacle, thereby achieving the technical effect of advancing the buffering time. The pad can assist the damping rod and shock-absorbing spring to play an auxiliary buffering role, thereby improving the energy absorption efficiency during the impact and improving the buffering protection effect.
[0017] (2) The contact plate is supported by a crossbeam. Fixed ears are provided at both ends of the crossbeam to facilitate the installation of the buffer mechanism on the rear surface of the loader. Extension plates are also provided on both sides of the crossbeam. Mounting holes are opened on the bottom and side of the extension plates to facilitate fixing to the top or side surface of the loader with the help of the crossbeam, thus facilitating the fixing to the blind spot position of different models of loaders. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] Figure 1 This is a schematic diagram of the overall rear structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall front structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the overall structure of the crossbeam in this utility model;
[0022] Figure 4 This is a schematic diagram of the overall structure of the damping rod in this utility model.
[0023] In the diagram: 1. Mounting mechanism; 101. Crossbeam; 102. Fixing lug; 103. First slide groove; 104. Second slide groove; 105. Extension plate; 106. First mounting hole; 107. Second mounting hole; 108. Diagonal brace; 109. Damping rod; 110. Shock-absorbing spring; 2. Buffer mechanism; 201. Contact plate; 202. Through port; 203. Pad plate; 204. Push plate; 205. Push rod; 206. Fixing sleeve; 207. First connecting rod; 208. Slider; 209. Second connecting rod; 210. Clamping plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figure 1-4As shown, a blind spot protection device for a loader includes an installation mechanism 1, with a buffer mechanism 2 disposed on the outer side of the installation mechanism 1. The buffer mechanism 2 includes a contact plate 201, with symmetrical openings 202 on the surface of the contact plate 201. A pad 203 is connected through the interior of each opening 202. A push plate 204 is glued and fixed to one side of the surface of each pad 203, and a push rod 205 is fixedly connected to the middle of the other side of the surface of each pad 203. The push rod 205 is perpendicular to the length direction of the contact plate 201, and a fixing sleeve 206 is fixedly installed in the middle of the surface of the push rod 205. The top and bottom surfaces of the fixing sleeve 206 are rotatably connected to the middle of each first connecting rod 207. A slider 208 is rotatably connected between the two first connecting rods 207. Figures 1-2 As shown, the pad 203 is made of rubber and can play a role in shock absorption and cushioning.
[0026] The top and bottom surfaces of slider 208 are rotatably connected to a second connecting rod 209. The second connecting rod 209 and the first connecting rod 207 both rotate around the same axis. The ends of the two second connecting rods 209 furthest from slider 208 are rotatably connected to a clamping plate 210. Both clamping plates 210 are fixedly mounted to the surface of the contact plate 201. Figures 1-2 As shown, the contact plate 201 extends to the periphery of the loader, thereby preventing obstacles from directly contacting the loader;
[0027] The mounting mechanism 1 includes a crossbeam 101. Fixing ears 102 are fixedly mounted on both sides of the outer wall of the crossbeam 101, and holes are opened at the upper and lower ends of the surface of the fixing ears 102. Extension plates 105 are welded and fixed to both sides of the top surface of the crossbeam 101. The extension plates 105 are generally L-shaped, and diagonal braces 108 are welded and fixed to the side walls of the extension plates 105. The other end of the diagonal braces 108 is welded and fixed to the crossbeam 101. Several first mounting holes 106 are opened in the horizontal plane of the extension plates 105, and several second mounting holes 107 are opened in the vertical plane of the extension plates 105. The first mounting holes 106 and the second mounting holes 107 are equidistantly arranged along the length direction of the extension plates 105. Figure 1 As shown, bolts can pass through both the first mounting hole 106 and the second mounting hole 107, which facilitates locking and fixing with the loader;
[0028] A first groove 103 is symmetrically formed in the middle of the surface of the crossbeam 101. A second groove 104 is formed on the surface of the crossbeam 101 between the fixing lug 102 and the first groove 103. The first groove 103 extends along the length of the crossbeam 101, and the second groove 104 extends along the thickness of the crossbeam 101. The inner walls of the two first grooves 103 are respectively inserted into and slidably connected to the slider 208, and the inner walls of the two second grooves 104 are respectively penetrated and slidably connected to the push rod 205. Damping rods 109 are bolted to both sides of the crossbeam 101 away from the extension plate 105. The extended ends of the damping rods 109 are bolted to the contact plate 201. A damping spring 110 is sleeved on the outer side of the damping rod 109, and the two ends of the damping spring 110 abut against the contact plate 201 and the crossbeam 101, respectively. Figure 3 As shown, the slider 208 moves linearly along the inside of the first groove 103, while the push rod 205 moves linearly along the inside of the second groove 104.
[0029] The working principle of this utility model:
[0030] When the device is in use, the extension plate 105 is pressed against the surface of the blind spot at the rear of the loader, and bolts or other fasteners are passed through the first mounting hole 106 or the second mounting hole 107 to fix the extension plate 105 to the loader. When an obstacle approaches the rear of the loader, the contact plate 201 first presses against the obstacle, thereby causing the damping rod 109 and the shock absorber spring 110 to retract simultaneously and absorb the impact. During this period, the distance between the contact plate 201 and the crossbeam 101 is shortened, the second connecting rod 209 rotates toward the middle of the crossbeam 101, and drives the slider 208 to move along the first slide groove 103. The distance between the sliders 208 increases, and the second connecting rod 209 also rotates toward the middle of the crossbeam 101. The fixing sleeve 206 drives the push rod 205 to move along the second slide groove 104, and the push plate 204 extends out from the through-hole 202, thereby the pad plate 203 presses against the surface of the obstacle for buffering.
[0031] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A blind spot protection device for a loader, comprising an installation mechanism (1), wherein a buffer mechanism (2) is provided on the outer side of the installation mechanism (1); Its features are, The buffer mechanism (2) includes a contact plate (201), and the surface of the contact plate (201) is symmetrically provided with openings (202). Each opening (202) is connected to a pad (203). A push plate (204) is glued and fixed to one side of the surface of each pad (203), and a push rod (205) is fixedly connected to the middle of the other side of the surface of each pad (203). The push rod (205) is perpendicular to the length direction of the contact plate (201), and a fixed sleeve (206) is fixedly installed in the middle of the surface of the push rod (205). The top and bottom surfaces of the fixed sleeve (206) are rotatably connected to a first connecting rod (207), and a slider (208) is rotatably connected between the two first connecting rods (207).
2. The blind spot protection device for a loader according to claim 1, characterized in that, The top and bottom surfaces of the slider (208) are rotatably connected to a second connecting rod (209). The second connecting rod (209) and the first connecting rod (207) rotate around the same axis. The two second connecting rods (209) are rotatably connected to a clamping plate (210) at the ends away from the slider (208). The two clamping plates (210) are fixedly installed on the surface of the contact plate (201).
3. A loader blind spot protection device according to claim 2, characterized in that, The installation mechanism (1) includes a crossbeam (101), and fixing ears (102) are fixedly installed on both sides of the outer wall of the crossbeam (101). The upper and lower ends of the surface of the fixing ears (102) are opened. Extension plates (105) are welded and fixed on both sides of the top surface of the crossbeam (101). The extension plates (105) are L-shaped in general.
4. A loader blind spot protection device according to claim 3, characterized in that, The side wall of the extension plate (105) is welded and fixed with a diagonal brace (108), and the other end of the diagonal brace (108) is welded and fixed to the crossbeam (101). The horizontal plane of the extension plate (105) is provided with a plurality of first mounting holes (106), and the vertical plane of the extension plate (105) is provided with a plurality of second mounting holes (107). The first mounting holes (106) and the second mounting holes (107) are arranged at equal intervals along the length direction of the extension plate (105).
5. A loader blind spot protection device according to claim 4, characterized in that, The crossbeam (101) has a first groove (103) symmetrically formed in the middle of its surface. The crossbeam (101) also has a second groove (104) formed on its surface between the fixing lug (102) and the first groove (103). The first groove (103) extends along the length of the crossbeam (101), and the second groove (104) extends along the thickness of the crossbeam (101).
6. A loader blind spot protection device according to claim 5, characterized in that, The inner walls of the two first grooves (103) are respectively inserted into and slidably connected to the slider (208), and the inner walls of the two second grooves (104) are respectively connected through and slidably connected to the push rod (205).
7. A loader blind spot protection device according to claim 6, characterized in that, The crossbeam (101) is fixedly connected to damping rods (109) on both sides of the surface away from the extension plate (105) by bolts. The extension end of the damping rod (109) is fixedly installed to the contact plate (201) by bolts. A shock-absorbing spring (110) is sleeved on the outside of the damping rod (109). The two ends of the shock-absorbing spring (110) abut against the contact plate (201) and the crossbeam (101) respectively.