Self-locking clamping butt-joint fixing device

Abstract

The utility model relates to the field of assembling of bucket elevators and grain dryers, in particular to a self-locking clamping butt-joint fixing device which comprises a lock hook assembly arranged on a bucket elevator barrel, the lock hook assembly comprises a pull plate rotationally connected with the bucket elevator barrel, and a pull rope and a clamping hook are arranged at the two ends of the pull plate respectively; the locking arm assembly is arranged on the grain dryer barrel, and the locking arm assembly is provided with a clamping groove matched with the clamping hook; the clamping hook of the lock hook assembly can be correspondingly clamped in the clamping groove of the lock arm assembly so that the bucket elevator can be fixedly locked to the grain dryer, and the clamping hook can be separated from the clamping groove by pulling the pull rope so that locking between the clamping hook and the clamping groove can be relieved. No special climbing equipment is needed, the bucket elevator can be quickly locked to the grain drying machine, and meanwhile locking between the bucket elevator and the grain drying machine can be quickly relieved.

Description

Technical Field

[0001] This utility model relates to the field of assembling bucket elevators and grain dryers, and more specifically, to a self-locking clamping docking and fixing device. Background Technology

[0002] Grain dryers, as important equipment in agricultural production, are widely used in the drying process after grain harvest. To improve drying efficiency and automation, grain dryers are usually used in conjunction with auxiliary equipment such as bucket elevators. The main function of these auxiliary devices is to lift grain from the ground to the dryer's feed inlet or to transport materials between different processes. However, due to the height difference between the dryer and the auxiliary equipment, many challenges arise during actual installation and use.

[0003] In existing technologies, auxiliary equipment such as bucket elevators typically require independent installation and are secured to the dryer body via complex connecting mechanisms. This installation method necessitates not only specialized climbing equipment or securing devices but also auxiliary facilities such as ladders to ensure the safety of installers and the stability of the equipment. The entire installation process involves multiple steps, including equipment positioning, height adjustment, connection and securing, and safety checks, which is not only time-consuming and labor-intensive but also increases installation costs. Furthermore, these complex connecting mechanisms need to be disassembled during equipment maintenance or relocation, further increasing the operational difficulty and workload. This cumbersome installation and disassembly process not only affects production efficiency but also poses certain safety hazards, especially when working at heights, where operators face the risk of falls. Therefore, simplifying the installation and securing process between the dryer and auxiliary equipment, and improving operational convenience and safety, has become an urgent technical problem to be solved in the field of grain drying equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a self-locking clamping and fixing device that can quickly lock a bucket elevator to a grain dryer without the need for special climbing equipment, and can also quickly release the lock.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A self-locking clamping and fixing device includes:

[0007] A locking hook assembly is installed on the bucket elevator drum. The locking hook assembly includes a pull plate that is rotatably connected to the bucket elevator drum. A pull rope and a hook are respectively provided at both ends of the pull plate.

[0008] A locking arm assembly is installed on the cylinder of a grain dryer, the locking arm assembly having a groove that matches the hook;

[0009] The hook of the locking hook assembly can be engaged with the slot of the locking arm assembly to fix the bucket elevator to the grain dryer, and pulling the rope can disengage the hook from the slot to release the locking.

[0010] Furthermore, the locking hook assembly also includes:

[0011] A fixed frame is fixedly installed on the outside of the bucket elevator drum;

[0012] A bracket is fixed to the fixed frame. The rear end of the bracket is provided with a rear support leg. The pull plate is rotatably connected to the rear support leg. The front end of the bracket is provided with a front support leg. The top of the front support leg is provided with a limiting plate to restrict the front end of the pull plate from rotating downward.

[0013] Furthermore, the locking hook assembly includes two pull plates, the brackets are symmetrically arranged on the left and right sides of the fixing frame, the two pull plates are respectively arranged on the left and right brackets, and the pull plates are rotatably connected to the rear support leg through a hinge shaft;

[0014] A first elastic body is connected between the bracket and the pull plate;

[0015] The front and rear ends of the two pull plates are connected and fixed by a front connecting rod and a rear connecting rod, respectively;

[0016] The hook is provided at the bottom of the front end of the pull plate, and the push rod is provided at the top of the front end of the pull plate.

[0017] Furthermore, a pull ring is provided on the rear connecting rod, and the pull rope is tied and fixed to the pull ring.

[0018] Furthermore, the locking arm assembly includes:

[0019] A fixing plate, the front end of which is connected and fixed to the cylinder of the grain dryer, and an inclined plate is provided at the top of the rear end of the fixing plate, forming the slot between the inclined plate and the fixing plate;

[0020] Two clamping arms are provided and symmetrically arranged on the left and right sides of the bucket elevator drum. The clamping arms are rotatably connected to the fixed plate through a rotating shaft. The clamping arms are connected to a connecting part and a clamping part. The clamping part is located at the rear end of the connecting part. A pushing groove is formed between the clamping part and the connecting part. The push rod is located in the pushing groove.

[0021] The second elastic body is connected between the left and right connecting parts. The clamping arm can rotate around the rotating shaft and can open or close under the action of the second elastic body.

[0022] Furthermore, the connecting part is L-shaped, the clamping arm is Z-shaped, and the pivot is provided at the connection between the connecting part and the clamping part.

[0023] Furthermore, a support column is provided between the two connecting parts on the left and right sides, and two second elastic bodies are provided, with one end of the second elastic body connected to the connecting part and the other end connected to the support column.

[0024] Furthermore, the first elastic body and the second elastic body are each made of tension springs.

[0025] Furthermore, the fixing frame bolts are connected and fixed to the bucket elevator cylinder by multiple bolts.

[0026] Furthermore, the rear end face of the hook is a vertical face, the front end face of the hook is an inclined face, and the size of the hook gradually increases from bottom to top.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] This application provides a self-locking clamping and fixing device for quickly assembling a bucket elevator onto a grain dryer. A locking hook assembly is mounted on the bucket elevator drum, and a locking arm assembly is mounted on the grain dryer drum. By applying external force to push the bucket elevator drum and the locking hook assembly forward together, the hook of the locking hook assembly engages with the corresponding slot of the locking arm assembly, thus securing the bucket elevator to the grain dryer and achieving rapid assembly. Pulling the pull rope disengages the hook from the slot, releasing the lock between the bucket elevator and the grain dryer. This self-locking clamping and fixing device enables rapid locking and unlocking of the bucket elevator and the grain dryer without requiring specialized climbing equipment. It is convenient, safe, and reliable to operate, simplifying the installation process and improving equipment stability. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the present invention, which uses a self-locking clamping and fixing device to assemble a bucket elevator onto a grain dryer.

[0031] Figure 2 This is a partial structural schematic diagram of the locking hook assembly of this utility model;

[0032] Figure 3 This is a structural schematic diagram of the fixing frame and bracket of this utility model;

[0033] Figure 4 This is a schematic diagram of the locking arm assembly of this utility model (the dashed lines show the rotation trajectory of the locking arm);

[0034] Figure 5 This is a schematic diagram of the structure of the self-locking clamping and fixing device of this utility model when two devices are configured.

[0035] In the picture:

[0036] 1- Bucket elevator drum; 2- Locking hook assembly; 3- Bracket; 4- Fixing frame; 5- Pull rope; 6- Locking arm assembly; 7- Grain dryer drum; 8- Fixing rod;

[0037] 201-Pull plate; 202-Hinge shaft; 203-Front connecting rod; 204-Pull ring fixing seat; 205-Pull ring;

[0038] 206 - Rear connecting rod; 207 - Push rod; 208 - Hook; 209 - Round hole; 210 - Extension;

[0039] 301 - Front outrigger; 302 - Rear outrigger; 303 - Limiting plate;

[0040] 601-Clamping arm; 6011-Clamping part; 6012-Connecting part; 602-Support column; 603-Inclined plate; 604-Rotating shaft; 605-Second elastic body; 606-Fixing plate; 607-Vertical plate; 608-Push groove. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] 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 invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] Example 1

[0049] Reference Figures 1-4 A self-locking clamping and fixing device for quickly assembling a bucket elevator onto a grain dryer, comprising:

[0050] The locking hook assembly 2 is installed on the bucket elevator drum 1. The locking hook assembly 2 includes a pull plate 201 that is rotatably connected to the bucket elevator drum 1. A pull rope 5 and a hook 208 are respectively provided at both ends of the pull plate 201.

[0051] A locking arm assembly 6 is disposed on the cylinder 7 of the grain dryer, and the locking arm assembly 6 has a groove that matches the hook 208;

[0052] The hook 208 of the locking hook assembly 2 can be engaged with the slot of the locking arm assembly 6 to fix and lock the bucket elevator to the grain dryer, and pulling the pull rope 5 can disengage the hook 208 from the slot to release the locking.

[0053] like Figure 1 As shown, for ease of orientation description, forward, backward, left and right directions are established, wherein the bucket elevator cylinder 1 is located on the front side of the grain dryer cylinder 7.

[0054] Specifically, the locking hook assembly 2 further includes:

[0055] The fixing frame 4 is fixedly installed on the outside of the bucket elevator cylinder 1. The fixing frame 4 has the same size as the bucket elevator cylinder 1 and fits in a corresponding manner. The fixing frame 4 is fitted on the outside of the bucket elevator cylinder 1 and is bolted together by multiple bolts to facilitate the disassembly of the fixing frame 4.

[0056] The bracket 3 is used for mounting the pull plate 201 and is fixed to the fixed frame 4. The rear end of the bracket 3 is provided with a rear support leg 302. The pull plate 201 and the rear support leg 302 are rotatably connected by a hinge shaft 202. The hinge shaft 202 is horizontally set and its axis is in the left and right direction. The pull plate 201 can rotate around the hinge shaft 202. The front end of the bracket 3 is provided with a front support leg 301. The top of the front support leg 301 is provided with a limiting plate 303 to limit the front end of the pull plate 201 from rotating excessively downward.

[0057] Preferably, the locking hook assembly 2 includes two pull plates 201, the brackets 3 are symmetrically arranged on the left and right sides of the fixing frame 4, the two pull plates 201 are respectively arranged on the left and right brackets 3, and the pull plates 201 are rotatably connected to the rear support leg 302 through the hinge shaft 202.

[0058] A first elastic body, which is a tension spring, is connected between the bracket 3 and the pull plate 201. Circular holes 209 for mounting the tension spring are respectively provided in the middle portions of the pull plate 201 and the bracket 3. When the rear end of the pull plate 201 is pulled downwards by the pull rope 5, if the pulling force is released, the pull plate 201 will return to its original position due to the elasticity of the first elastic body.

[0059] The front and rear ends of the two pull plates 201 are connected and fixed by a front connecting rod 203 and a rear connecting rod 206, respectively. That is, the front and rear ends of the left and right pull plates 201 are connected by a front connecting rod 203 and a rear connecting rod 206, respectively. Through the connection of the front connecting rod 203 and the rear connecting rod 206, the left and right pull plates 201 are integrated and can move synchronously.

[0060] The hook 208 is provided at the bottom of the front end of the pull plate 201, and the push rod 207 is provided at the top of the front end of the pull plate 201. Figure 1 and Figure 2 As shown.

[0061] Preferably, the bottom of the rear end of the pull plate 201 is provided with an extension 210, and a rear connecting rod 206 is connected between the two extensions 210. The rear connecting rod 206 has a plate-like structure, and a pull ring fixing seat 204 is provided at the bottom of the rear connecting rod 206. The pull ring fixing seat 204 is U-shaped, and a pull ring 205 is provided at the bottom of the pull ring fixing seat 204. The pull ring 205 is connected to the pull ring fixing seat 204 by a bolt assembly, and the pull rope 5 is tied and fixed to the pull ring 205.

[0062] In this embodiment, the locking arm assembly 6 includes:

[0063] A fixing plate 606 is provided. The front end of the fixing plate 606 is connected and fixed to the grain dryer cylinder 7. An inclined plate 603 is provided at the top of the rear end of the fixing plate 606. The groove is formed between the inclined plate 603 and the fixing plate 606. A vertical plate 607 matching the hook 208 is provided at the front end of the inclined plate 603.

[0064] Two clamping arms 601 are provided and symmetrically arranged on the left and right sides of the bucket elevator drum 1. The clamping arms 601 are rotatably connected to the fixed plate 606 through the rotating shaft 604. The clamping arms 601 are connected to the connecting part 6012 and the clamping part 6011. The clamping part 6011 is located at the rear end of the connecting part 6012. A pushing groove 608 is formed between the clamping part 6011 and the connecting part 6012. The push rod 207 is located in the pushing groove 608.

[0065] The second elastic body 605 is connected between the two connecting parts 6012 on the left and right sides. The clamping arm 601 can rotate around the rotating shaft 604 and can open or close under the action of the second elastic body 605.

[0066] In this embodiment, the connecting part 6012 is L-shaped, the clamping arm 601 is Z-shaped, and the rotating shaft 604 is provided at the connection between the connecting part 6012 and the clamping part 6011. A support column 602 is provided between the two connecting parts 6012. Two second elastic bodies 605 are provided, with one end of the second elastic body 605 connected to the connecting part 6012 and the other end connected to the support column 602. The second elastic body 605 is a tension spring.

[0067] Preferably, the push groove 608 is designed as a right-angled groove to facilitate the push rod 207 at the front end of the pull plate 201 to push the clamping arm 601; the rear end face of the clamping hook 208 is a vertical face, the front end face of the clamping hook 208 is an inclined face, and the size of the clamping hook 208 gradually increases from bottom to top. When the bucket elevator and the locking hook assembly 2 are pushed forward under the action of external force, the push rod 207 pushes forward and first contacts the inner side wall of the clamping part 6011. As the push rod 207 continues to move forward, it drives the clamping arm 601 to rotate around the rotating shaft 604. The rear ends of the two clamping arms 601 come together and gradually close, thereby clamping the bucket elevator barrel 1. During this process, the hook 208 at the front end of the pull plate 201 moves forward and slides against the inclined plate 603. Then, the hook 208 is lifted by the inclined plate 603, the front end of the pull plate 201 is lifted upward and pulls the first elastic body (tension spring) and undergoes elastic deformation. After sliding past the inclined plate 603, the first elastic body (tension spring) recovers its elastic deformation. Under the action of the first elastic body, the hook 208 quickly falls down and hooks the vertical plate 607 at the front end of the inclined plate 603. Then, when the pull rope 5 is pulled downward, the pull plate 201 rotates and its front end is lifted upward. The hook 208 disengages from the slot, and the clamping arms 601 on both sides also open, so the bucket elevator can be easily removed.

[0068] The self-locking clamping and fixing device includes the following stages during use:

[0069] 1. Preparation stage:

[0070] Install the fixing frame 4 and the fixing plate 606 on the dryer and the elevator respectively.

[0071] The fixing frame 4 is used to hold the cylinder wall of the elevator, and the fixing plate 606 is used to fix it to the dryer.

[0072] 2. Connection Phase:

[0073] When the elevator approaches the dryer, the "hook 208" on the device will automatically slide into the push groove 608 of the "locking arm".

[0074] The hook 208 at the front end of the pull plate 201 will slide over the ramp plate on the fixing plate 606 and then be engaged in the slot to lock the fixing plate 606, thus achieving a locking effect.

[0075] At the same time, the push plate on the pull plate 201 will push the clamping arm 601 to rotate, so that the clamping arms 601 on both sides tightly hug the cylinder wall of the hoist.

[0076] 3. Lockdown Phase:

[0077] The entire device is firmly locked in place by the elastic force of the first and second elastic bodies 605, ensuring that the hoist will not sway from side to side.

[0078] 4. Unlocking Phase:

[0079] If separation is required, simply pull a rope 5. Pulling rope 5 will cause the pull plate 201 and the hook 208 to rotate. The hook 208 will disengage from the slot and unlock the fixing plate 606. The locking arm 601 will also open, so the hoist can be easily removed.

[0080] The advantages of the entire device:

[0081] Simple to operate: No complicated tools or manual intervention are required. Simply move the locking hook assembly 2 and the elevator together toward the dryer, and the locking will be completed automatically.

[0082] Safe and reliable: It is very secure after locking, avoiding the risk of equipment shaking.

[0083] Cost savings: It eliminates the need for climbing equipment and other auxiliary devices.

[0084] High applicability: This approach can be used not only for dryers and elevators, but also for docking and fixing other similar equipment.

[0085] Note: Due to the high height of the bucket elevator cylinder 1, when installing and fixing the elevator, it is necessary to first install the fixing frame 4 and the fixing plate 606 on the dryer cylinder and the elevator cylinder respectively, then adjust the locking hook assembly 2 and the locking arm assembly 6 respectively, and install and check the tension springs on the locking hook assembly 2 and the locking arm assembly 6 respectively to ensure that they can extend and retract freely. Then, the elevator is gradually moved closer to the dryer cylinder. While moving closer, the locking hook assembly 2 is kept in the middle position facing the locking arm assembly 6. As the elevator cylinder moves closer to the dryer cylinder, the locking hook assembly 2 gradually enters the space between the locking arms 601 of the locking arm assembly 6. The locking hook 208 at the front end of the pull plate 201 of the locking hook assembly 2 slides forward. During the sliding process, the inclined surface on the front side of the locking hook 208 is lifted and slides over the inclined plate 603 of the fixed plate 606. After passing the inclined plate 603, the locking hook 208 falls quickly due to the elastic force of the first elastic body and hooks the vertical plate 607 at the front end of the inclined plate 603. At the same time, the push rod 207 at the front end of the pull plate 201 pushes the locking arm 601 of the locking arm assembly 6 forward to rotate. After the locking arm 601 rotates close to the elevator cylinder, it stops rotating and locks the elevator cylinder. The entire process is completed instantly by the tension of the tension spring. The hook 208 passes over the inclined plate 603 of the fixed plate 606 and falls down to hook the fixed plate 606. The clamping arm 601 rotates and clamps the hoist barrel.

[0086] When unlocking or disengaging is required, simply pull the pull rope 5 with external force. The pull rope 5 pulls the locking hook assembly 2 to rotate, causing the hook 208 at the front end of the pull plate 201 to lift and disengage from the slot. At the same time, the locking arm 601 opens under the tension of the tension spring, completing the unlocking and disengagement of the hoist drum. The pull rope 5 can also be replaced by an electric traction device.

[0087] Through the above process, the connection, locking, unlocking and disengagement of the elevator cylinder and the dryer cylinder are achieved. The operation is convenient, safe and reliable, which simplifies the equipment installation process and improves the stability of the equipment.

[0088] Example 2

[0089] This embodiment provides a self-locking clamping docking and fixing device, and the number of self-locking clamping docking and fixing devices is designed to be at least two. This embodiment is described using an example of two self-locking clamping docking and fixing devices. Figure 5 As shown.

[0090] Two self-locking clamping and fixing devices are arranged vertically. Specifically, two locking hook assemblies 2 are sequentially installed on the bucket elevator cylinder 1 from top to bottom, and two locking arm assemblies 6 are sequentially installed on the grain dryer cylinder 7 from top to bottom, with each locking hook assembly 2 and locking arm assembly 6 corresponding to the other. Between adjacent locking hook assemblies 2, the two upper pull plates 201 and the two lower pull plates 201 are connected and fixed by fixing rods 8. Pulling a pull rope 5 simultaneously rotates both the upper and lower pull rods synchronously.

[0091] Example 3

[0092] A method for a self-locking clamping and fixing device includes the following steps:

[0093] The fixed frame 4, together with the bracket 3, is fixed to the wall of the bucket elevator drum 1;

[0094] The pull plate 201 of the locking hook assembly 2 is installed in the shaft hole of the support leg through the hinge shaft 202, and the restoring force is provided by the tension spring (first elastic body);

[0095] Fix the locking arm assembly 6 to the dryer cylinder;

[0096] When the bucket elevator cylinder 1 is brought close to the dryer cylinder by external force, the hook 208 of the locking hook assembly 2 slides over the inclined plate 603 on the fixed plate 606 and quickly falls into the slot to automatically hook the inclined plate 603. At the same time, the push rod 207 pushes the clamping arm 601 to rotate to clamp the bucket elevator cylinder 1.

[0097] When unlocking is required, pull the rope 5 to rotate the locking hook assembly 2, the pointed hook lifts up and disengages from the inclined plate 603, and the locking arm 601 opens under the action of the tension spring (second elastic body 605) to complete the unlocking and disengagement.

[0098] This self-locking clamping docking and fixing device can be used for docking, clamping and unlocking equipment in places inaccessible to personnel at heights, and can be adaptively adjusted according to the specific shape of the fixed equipment.

[0099] The beneficial effects of the technical solution of this utility model are:

[0100] This application provides a self-locking clamping and fixing device for quickly assembling a bucket elevator onto a grain dryer. A locking hook assembly 2 is mounted on the bucket elevator drum 1, and a locking arm assembly 6 is mounted on the grain dryer drum 7. By applying external force to push the bucket elevator drum 1 and the locking hook assembly 2 forward together, the hook 208 of the locking hook assembly 2 can engage with the corresponding slot of the locking arm assembly 6, thus securing the bucket elevator to the grain dryer and achieving rapid assembly. When the pull rope 5 is pulled, the hook 208 can disengage from the slot, releasing the lock between the bucket elevator and the grain dryer. This self-locking clamping and fixing device enables rapid locking and unlocking between the bucket elevator and the grain dryer without requiring specialized climbing equipment. It is convenient, safe, and reliable to operate, simplifying the installation process and improving equipment stability.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0102] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-locking clamping and fixing device, characterized in that, include: A locking hook assembly (2) is installed on the bucket elevator drum (1). The locking hook assembly (2) includes a pull plate (201) that is rotatably connected to the bucket elevator drum (1). A pull rope (5) and a hook (208) are respectively provided at both ends of the pull plate (201). A locking arm assembly (6) is provided on the cylinder (7) of the grain dryer, the locking arm assembly (6) having a groove that matches the hook (208); The hook (208) of the locking hook assembly (2) can be engaged with the slot of the locking arm assembly (6) to fix the bucket elevator to the grain dryer, and pulling the pull rope (5) can disengage the hook (208) from the slot to release the locking.

2. The self-locking clamping and fixing device according to claim 1, characterized in that, The locking hook assembly (2) also includes: The fixed frame (4) is fixedly installed on the outside of the bucket elevator drum (1); A bracket (3) is fixed on the fixed frame (4). A rear support leg (302) is provided at the rear end of the bracket (3). The pull plate (201) is rotatably connected to the rear support leg (302). A front support leg (301) is provided at the front end of the bracket (3). A limiting plate (303) is provided at the top of the front support leg (301) to limit the front end of the pull plate (201) from rotating downward.

3. The self-locking clamping and fixing device according to claim 2, characterized in that, The locking hook assembly (2) includes two pull plates (201). The brackets (3) are symmetrically arranged on the left and right sides of the fixed frame (4). The two pull plates (201) are respectively arranged on the left and right brackets (3), and the pull plates (201) are rotatably connected to the rear support leg (302) through the hinge shaft (202). A first elastic body is connected between the bracket (3) and the pull plate (201); The front and rear ends of the two pull plates (201) are connected and fixed by a front connecting rod (203) and a rear connecting rod (206), respectively; The hook (208) is provided at the bottom of the front end of the pull plate (201), and the push rod (207) is provided at the top of the front end of the pull plate (201).

4. The self-locking clamping and fixing device according to claim 3, characterized in that, A pull ring (205) is provided on the rear connecting rod (206), and the pull rope (5) is tied and fixed to the pull ring (205).

5. The self-locking clamping and fixing device according to claim 3, characterized in that, The locking arm assembly (6) includes: A fixing plate (606) is provided. The front end of the fixing plate (606) is connected and fixed to the grain dryer cylinder (7). An inclined plate (603) is provided at the top of the rear end of the fixing plate (606). The groove is formed between the inclined plate (603) and the fixing plate (606). Two clamping arms (601) are provided and symmetrically arranged on the left and right sides of the bucket elevator drum (1). The clamping arms (601) are rotatably connected to the fixed plate (606) through the rotating shaft (604). The clamping arms (601) are connected to the connecting part (6012) and the clamping part (6011). The clamping part (6011) is located at the rear end of the connecting part (6012). A pushing groove (608) is formed between the clamping part (6011) and the connecting part (6012). The push rod (207) is located in the pushing groove (608). The second elastic body (605) is connected between the two connecting parts (6012) on the left and right sides. The clamping arm (601) can rotate around the rotating shaft (604) and can open or close under the action of the second elastic body (605).

6. The self-locking clamping and fixing device according to claim 5, characterized in that, The connecting part (6012) is L-shaped, the clamping arm (601) is Z-shaped, and the pivot (604) is provided at the connection between the connecting part (6012) and the clamping part (6011).

7. The self-locking clamping and fixing device according to claim 5, characterized in that, A support column (602) is provided between the two connecting parts (6012) on the left and right sides. Two second elastic bodies (605) are provided, with one end of the second elastic body (605) connected to the connecting part (6012) and the other end connected to the support column (602).

8. The self-locking clamping and fixing device according to claim 5, characterized in that, The first elastic body and the second elastic body (605) are respectively made of tension springs.

9. The self-locking clamping and fixing device according to claim 2, characterized in that, The fixed frame (4) is bolted to the bucket elevator barrel (1) by multiple bolts.

10. The self-locking clamping and fixing device according to claim 1, characterized in that, The rear end face of the hook (208) is a vertical face, the front end face of the hook (208) is an inclined face, and the size of the hook (208) gradually increases from bottom to top.

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