Self-service separating device for mine boots and manufacturing process thereof

Abstract

The invention relates to the technical field of mining equipment, in particular to a self-service separating device for mine boots and a manufacturing process of the self-service separating device for the mine boots. The arm-catching assembly is arranged on the base and comprises a supporting rod and an arm-catching part, the supporting rod extends upwards from the base, the arm-catching part is fixedly connected to the top end of the supporting rod, and the arm-catching part extends in a specific direction relative to the supporting rod in the transverse direction. Through the configuration, a coal miner can stand on the base to carry out shoe removing operation, the situation that the coal miner stands on a wet, slippery and muddy underground roadway road surface to carry out shoe removing operation is avoided, and therefore the risk that the coal miner slips and is damaged by falling during the shoe removing operation is reduced; moreover, the boots can be taken off according to the lever principle by means of the design that the grabbing parts stretch out / protrude out relative to the supporting rods in the transverse direction in combination with the characteristics of the leg structures of the human body, and therefore coal miners can be assisted in taking off the boots in a more labor-saving mode.

Description

Technical Field

[0001] This invention relates to the field of mining equipment technology, and in particular to a self-service detachment device for mining shoes and its manufacturing process. Background Technology

[0002] In the mining industry, the underground working environment in coal mines is extremely harsh. The underground roadways are slippery and often covered in mud. The limited working spaces at the mining faces, coal bunkers, and water bunkers are filled with coal dust and sludge. Coal miners working in this environment often experience severe physical exhaustion. Removing their boots is particularly strenuous for them (surveys have shown that workers typically stand on one leg while lifting the other to remove their boots). This is especially true in cold seasons when the ground is slippery and muddy, and miners wear thick clothing. Their habit of standing on one leg and lifting the other to remove their boots easily leads to slips, falls, and other accidents. Summary of the Invention

[0003] This invention provides a self-service boot removal device and its manufacturing process, which solves the problem of lack of tools to help coal miners remove their boots conveniently in single-person boot removal scenarios in the prior art, and realizes a self-service boot removal device to help coal miners remove their boots conveniently by operating alone.

[0004] According to a first aspect of the present invention, a self-service detachment device for a mining shoe is provided, comprising: The base, which is placed on the ground; The gripping assembly is mounted on a base and includes a support rod and a gripping part. The support rod extends upward from the base, and the gripping part is fixedly connected to the top of the support rod. Laterally, the gripping part extends in a specific direction relative to the support rod.

[0005] According to the self-release device for mining shoes provided by the present invention, the number of gripping components is set to two, which are symmetrically distributed about the virtual central axis in the length or width direction of the base.

[0006] The self-service detachment device for mining boots provided according to the present invention also includes a handle that extends upward from the base and is ergonomically shaped.

[0007] According to the self-release device for mining shoes provided by the present invention, the handle is positioned on the virtual central axis in the length or width direction of the base.

[0008] According to the self-release device for mining boots provided by the present invention, the virtual central axis where the handle is located is coaxial with the relevant virtual central axes of the two symmetrical gripping components.

[0009] According to the self-release device for mining boots provided by the present invention, the gripping part is formed as a U-shaped claw.

[0010] According to the self-release device for mining shoes provided by the present invention, the inner side surface of the U-shaped claw is formed as a friction surface.

[0011] According to the self-release device for mining shoes provided by the present invention, in the lateral direction, the bottom of the U-shaped recess of the U-shaped claw maintains a preset distance from the support rod.

[0012] According to the self-removal device for mining boots provided by the present invention, the preset distance is set to be no less than 4.5cm.

[0013] According to a second aspect of the present invention, a manufacturing process for the self-service detachment device for mine shoes according to the first aspect of the present invention is also provided, comprising the following steps: Obtain sheet metal profiles and / or rod profiles; Cut the sheet metal profiles to obtain the base, support rods, and gripper. Divide the rod profile to obtain the rod segments that make up the handle; The base, support rod, and gripping part are fixedly connected in sequence to obtain the gripping assembly; The base and each rod are fixedly connected in sections to form the handle.

[0014] The self-service boot removal device provided by this invention allows miners to remove their boots while standing on a base, eliminating the need to stand on slippery and muddy underground roadways. This reduces the risk of slipping and falling during boot removal. Furthermore, the design of the gripping part extending / protruding laterally relative to the support rod, combined with the characteristics of the human leg structure, utilizes leverage to remove the boots. Therefore, compared to conventional boot removal methods, this self-service boot removal device assists miners in removing their boots more efficiently, providing a comfortable and convenient boot removal experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the self-service detachment device for mining shoes provided by the present invention.

[0017] Figure 2 This is a schematic diagram of the shoe removal operation principle of the self-service shoe removal device provided by the present invention.

[0018] Figure 3This is a flowchart of the manufacturing process of the self-service detachment device for mining shoes provided by the present invention.

[0019] Figure label: 1. Base; 2. Grip assembly; 3. Support rod; 4. Grip part; 5. Handle; F1. (Coal miner's) applied force; F2. Pressure; L1. Effective lever arm of applied force; L2. Effective lever arm of pressure; α Angle; O, origin. Detailed Implementation

[0020] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0021] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention 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 the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0023] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] The following is combined Figures 1 to 3 The invention describes the self-service detachment device for mining shoes and its manufacturing process.

[0026] Figure 1 This is a perspective view of the self-service detachment device for mining shoes provided by the present invention, as shown below. Figure 1 As shown, the self-service shoe removal device includes a base 1 and a gripping assembly 2. Typically, the base 1 is placed on the ground. For example, the base 1 may be equipped with a counterweight to ensure that it is stably placed on the ground and is not easily overturned when the miner stands on it to remove the shoe; or, the base 1 may be equipped with a connector to fix it to the ground to prevent overturning.

[0027] The gripping assembly 2 is mounted on the base 1, and is specifically fixedly connected to the base 1, for example, by welding. The gripping assembly 2 includes a support rod 3 and a gripping part 4, wherein the support rod 3 extends upward from the base 1, extending substantially vertically; the gripping part 4 is fixedly connected to the top end of the support rod 3. Furthermore, the support rod 3 and the gripping part 4 can be integrally formed, or they can be fixedly connected to each other by welding or a similar connection method. In the transverse direction, the gripping part 4 extends relative to the support rod 3 in a specific direction, for example, forward.

[0028] With the above configuration, coal miners can stand on the base 1 to remove their boots, eliminating the need to stand on the slippery and muddy underground roadway surface, thus reducing the risk of slipping and falling during the boot removal process. Moreover, the design of the gripping part 4 extending / protruding laterally relative to the support rod 3, combined with the characteristics of the human leg structure, allows for the use of leverage to remove boots. Therefore, compared to conventional boot removal methods, the self-service boot removal device of this invention can assist coal miners in removing their boots in a more energy-efficient manner, providing them with a comfortable and convenient boot removal experience.

[0029] Additionally or alternatively, the upper surface of the base 1 may be formed with an anti-slip texture with a raised height of about 1.5 mm, and preferably, the upper surface of the base 1 may also be coated with a polyurethane anti-slip layer, which greatly reduces the risk of coal miners slipping when standing on it.

[0030] Alternatively or additionally, the support rod 3 can extend entirely vertically, i.e., perpendicular to the base 1; the support rod 3 can also extend obliquely upwards, with its oblique direction being the same as the lateral extension direction of the gripping part 4, for example, both forward. Therefore, when the support rod 3 is oblique relative to the base 1, there is a wider space below the gripping part 4, allowing coal miners to make fuller use of the lever principle for boot removal operations, as will be discussed below.

[0031] In an optional embodiment, to further enhance the applicability and user-friendly design of the self-service boot removal device, the support rod 3 is not designed with a fixed height, but is adapted as a telescopic structural component. Specifically, the support rod 3 is composed of an inner sleeve and an outer sleeve fitted around the inner sleeve. The inner sleeve is formed as a solid or hollow steel rod, while the outer sleeve is a hollow steel pipe. The two are connected to each other by a threaded or pin-type locking mechanism. The outer surface of the inner sleeve is marked with graduations, for example, in cm / mm units, while the inner wall of the outer sleeve is provided with corresponding grooves or threads. During use, miners can adjust the extension length of the inner sleeve relative to the outer sleeve by rotating or pressing. The adjustment range is preferably 5cm to 15cm to accommodate the needs of miners of different heights, so that the gripping part 4 fits as closely as possible to the heel of the work boot, i.e., the Achilles tendon area. The locking mechanism can be a spring-loaded pin mechanism to ensure that the adjusted support rod 3 remains stable during boot removal operations and to prevent accidental slippage.

[0032] The advantage of this configuration is that the height of the support rod 3 can be dynamically adjusted according to the height, boot type, or operating habits of the coal miner, thereby optimizing the application effect of the lever principle and enhancing labor saving and safety.

[0033] The base 1 can be formed as a platform of any shape, preferably rectangular, thus naturally having its length and width. Even if the base 1 is formed in other shapes, considering that coal miners need to stand on the base 1 to remove their boots, the base 1 is likely to have a shape that is symmetrical about a specific axis or center, so that when the coal miner stands on one foot, the stability of the coal miner and the self-service boot removal device can still be maintained.

[0034] Based on this, the number of gripping components 2 is set to two, and the two gripping components 2 are symmetrically distributed about the virtual central axis in the length or width direction of the base 1. On the one hand, the symmetrical distribution of the two gripping components 2 on the base 1 conforms to ergonomic design, especially to the human standing posture; on the other hand, the self-release device for mining boots is equipped with two gripping components 2, so that coal miners can place both feet simultaneously in the position of the corresponding gripping component 2. Compared with the case of only a single gripping component 2, this eliminates the need for coal miners to frequently switch feet to remove their boots alternately.

[0035] Furthermore, the self-release device for the mining boot also includes a handle 5 that extends upward from the base 1, particularly extending entirely vertically. The handle 5 is ergonomically designed, such as a T-shaped structure or other suitable construction, to facilitate gripping or leaning by the miner, allowing the miner to use the handle 5 as an auxiliary support during a single-leg standing posture.

[0036] Furthermore, the handle 5 is positioned on a virtual central axis in the length or width direction of the base 1. As mentioned above, the base 1 is likely to have a shape that is symmetrical about a specific axis or center, preferably rectangular. Moreover, when a coal miner stands on one leg, the handle 5, as an auxiliary support, will inevitably bear a certain degree of load. Therefore, positioning the handle 5 on the virtual central axis in the length or width direction of the base 1 also helps to prevent accidental tipping when the coal miner is standing on it to remove his boots.

[0037] For example, the two gripping components 2 are symmetrically distributed about the virtual central axis in the length direction of the base 1, while the handle 5 is positioned on the virtual central axis in the width direction of the base 1. The associated virtual central axes of the two are not the same. Thus, when a coal miner stands on one leg, the handle 5 may be located in the center or on both sides of the front of the coal miner, allowing him to grasp or lean on the handle 5 with one or both hands.

[0038] Preferably, the two gripping components 2 are symmetrically distributed about the virtual central axis in the length or width direction of the base 1, and the handle 5 is positioned on the virtual central axis in the length or width direction of the base 1. The virtual central axis where the handle 5 is located is coaxial with the relevant virtual central axes of the two symmetrically distributed gripping components 2, that is, they are the same virtual central axis.

[0039] Furthermore, although the virtual central axis of the handle 5 is coaxial with the corresponding virtual central axes of the two symmetrically distributed gripping components 2, the handle 5 and the two gripping components 2 are located at opposite ends of the common virtual central axis. For example, the handle 5 is relatively close to the front end of the common virtual central axis, and the two gripping components 2 are relatively close to the rear end of the common virtual central axis.

[0040] Furthermore, to improve the comfort and stability of coal miners using the handle 5 as an auxiliary support, the handle 5 and the two gripping components 2 are kept at a certain distance from each other, for example, 40cm to 50cm. Therefore, when coal miners stand on one leg, especially leaning forward, the distance between the handle 5 and the two gripping components 2 ensures that coal miners can grip / lean on the handle 5 in a more comfortable posture without having to stretch their arms straight forward.

[0041] Furthermore, the gripping part 4 is formed into a U-shaped claw. The advantage of this design is that, considering the characteristics of the human leg structure and the conventional shape of work boots, the U-shaped claw can fit snugly against the work boots and the rear half of the leg to the greatest extent.

[0042] Unlike theoretical friction analysis, tribology is a highly advanced and complex science in practical applications. In everyday use, two contacting surfaces tend to maximize their contact area, as seen in car tires. Therefore, the gripping part 4 is shaped like a U-shaped claw, allowing it to fit snugly against the rear half of the work boot at its maximum extent. This increases the friction between the gripping part 4 and the work boot, making it easier for coal miners to remove their boots.

[0043] Furthermore, the gripping part 4, which is formed into a U-shaped claw, can adopt a double-layer metal composite plate structure. The inner layer is high-carbon steel to ensure the structural strength of the gripping part 4; the outer layer is a 304 stainless steel layer formed by hot rolling composite process to cover the inner layer and effectively resist electrochemical corrosion in the humid environment of underground coal mines.

[0044] Furthermore, the inner surface of the U-shaped claw is formed as a friction surface. Based on the above considerations, the inner surface of the U-shaped claw, which fits against the rear half of the work boot, needs to be formed as a friction surface with a relatively high coefficient of friction. For example, the inner surface of the U-shaped claw has several protrusions, especially, the protrusions are distributed on the inner surface in a specific layout pattern; or, alternatively, the inner surface is processed to improve its surface roughness by means of mechanical processing (e.g., grinding with sandpaper or other tools) or chemical processing (e.g., pickling).

[0045] Alternatively, as an alternative, the inner surface of the U-shaped chuck can be treated with micro-arc oxidation. For example, the inner surface of the U-shaped chuck can first be roughened by sandblasting (e.g., using 80-mesh quartz sand at a blasting pressure of 0.6 MPa) to create an average roughness R. aA substrate with a thickness of 6.3 μm was formed. Subsequently, a micro-arc oxidation device was used to treat the substrate in an electrolyte at a voltage of 450V for 20 minutes to generate a ceramicized oxide layer with a thickness of approximately 30 μm. The surface of this ceramicized oxide layer exhibits a porous microstructure, with a friction coefficient of 0.8 to 1.2 and a wear resistance life that can be increased by more than 3 times.

[0046] Furthermore, in the lateral direction, the bottom of the U-shaped recess of the U-shaped claw maintains a predetermined distance from the support rod 3. In particular, when the support rod 3 extends obliquely upward, the bottom of the U-shaped recess of the U-shaped claw maintains the aforementioned predetermined distance from the top front end of the support rod 3. Whether the support rod 3 extends completely vertically or obliquely upward, the portion other than the base, support rod, and the U-shaped recess of the gripping part collectively defines an approximately rectangular or trapezoidal space, which allows the heel portion of the work boot to be obliquely "wedge" into it.

[0047] Furthermore, the aforementioned preset distance is set to be no less than 4.5cm. Incidentally, the vertical height of the support rod 3, i.e., the distance between the base 1 and the gripping part 4, is set to approximately 8cm. Although the gripping part 4 has thickness, its relatively thin construction minimizes its impact on the rectangular / trapezoidal space, thus avoiding a significant adverse effect on the torque required to remove the boot.

[0048] Figure 2 This is a schematic diagram of the shoe removal operation principle of the self-service shoe removal device provided by the present invention, as shown below. Figure 2 As shown, during the process of a coal miner removing their boot using the self-service boot removal device, the rear side of the safety boot and the Achilles tendon area of ​​the body are in close contact with the inner side of the U-shaped claw-shaped gripper 4 over a large area. Furthermore, since the coal miner is standing with a forward-leaning posture, the heel of the safety boot is at an angle... α It is inclined and "wedges" into the rectangular / trapezoidal space.

[0049] At this point, taking the contact point between the work boot and the bottom of the U-shaped recess of the U-shaped claw as the origin O, the effective lever arm of the force F1 applied by the coal miner is L1 (that is, the lever arm of the vertical component from the origin O to F1), while the effective lever arm of the pressure F2 exerted by the bottom of the U-shaped recess of the U-shaped claw on the work boot is L2 (that is, the lever arm of the vertical component from the origin O to F2).

[0050] Based on the mechanical analysis of the lever principle, it can be deduced that: Formula (1) Formula (2) Formula (3) When the gripping part 4 of the self-service boot removal device applies pressure F2 to the heel of the safety boot, it can be deduced from the torque balance based on the lever mechanism that the larger the effective lever arm L1 of the applied force F1, the smaller the force F1 that the miner can apply, making the boot removal action less strenuous for the miner; when the angle α When the angle is 45°, we can obtain F1∙L1=F2∙L2, at which point the total torque M is zero. Therefore, when L1 is much greater than L2, we can deduce that F1 is much less than F2, thus leading to the conclusion that using the self-service shoe removal device for shoe removal is more labor-saving than removing the shoe by hand.

[0051] Figure 3 This is a flowchart of the manufacturing process of the self-service detachment device for mining shoes provided by the present invention, as follows: Figure 3 As shown, the manufacturing process of this self-service detachment device for mining shoes includes the following steps: Step S1: Obtain sheet metal profiles and / or rod profiles; Step S2: Cut the plate profile to obtain base 1, support rod 3 and gripping part 4; Step S3: Divide the rod profile to obtain the rod segments that constitute the handle 5; Step S4: The base 1, the support rod 3 and the gripping part 4 are fixedly connected in sequence to obtain the gripping assembly 2; Step S5: Fix the base 1 to each rod segment in sequence to obtain the handle 5.

[0052] For step S1, in order to produce the base 1, gripping assembly 2 and handle 5 in subsequent process steps, it is necessary to obtain the corresponding profiles.

[0053] For step S2, the base 1, support rod 3, and gripping part 4 can be cut into different shapes. For example, the base 1 can be cut into a rectangular platform of about 60cm × 40cm; the support rod 3 can be cut into a plate-shaped component with a length of about 8cm; and the gripping part 4 can be cut into a U-shaped claw of about 12cm × 11cm, and the radius of its U-shaped recess can be formed to be about 3cm.

[0054] For step S3, in order to make an ergonomic handle 5, for example a T-shaped structure, vertical bars with a length of about 120cm and horizontal bars with a length of about 20cm can be cut from the bar profile.

[0055] In step S4, the two gripping components 2 are symmetrically distributed about the virtual central axis along the length of the base 1 and are close to the rear end of the base 1. First, the support rod 3 is welded vertically or obliquely to the base 1, with the outer side of the support rod 3 about 5 cm away from the corresponding edge of the base 1 relative to the virtual central axis. Then, the tail end of the gripping part 4 is welded to the top of the support rod 3. This results in two gripping components 2 standing on both sides of the base 1, and the distance between the two gripping components 2 is adapted to the distance between the human legs.

[0056] For step S5, the vertical member is welded onto the virtual central axis in the length direction and close to the front end of the base 1, wherein the vertical member is approximately 50 cm away from the support rod 3 in the length direction. Then, the center point of the horizontal member is welded to the top of the vertical member, thus obtaining the desired handle 5.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-service detachment device for mining boots, characterized in that, include: The base, which is placed on the ground; A gripping assembly is disposed on the base. The gripping assembly includes a support rod and a gripping part. The support rod extends upward from the base, and the gripping part is fixedly connected to the top end of the support rod. Laterally, the gripping part extends in a specific direction relative to the support rod.

2. The self-service detachment device for mining shoes according to claim 1, characterized in that, The number of gripping components is set to two, and they are symmetrically distributed about a virtual central axis in the length or width direction of the base.

3. The self-service detachment device for mining shoes according to claim 2, characterized in that, It also includes a handle that extends upward from the base and is ergonomically designed.

4. The self-unloading device for mining shoes according to claim 3, characterized in that, The handle is positioned on a virtual central axis in the length or width direction of the base.

5. The self-unloading device for mine shoes according to claim 4, characterized in that, The virtual central axis where the handle is located is coaxial with the corresponding virtual central axes of the two symmetrical gripping components.

6. The self-unloading device for mine shoes according to claim 1, characterized in that, The gripping part is formed into a U-shaped claw.

7. The self-unloading device for mine shoes according to claim 6, characterized in that, The inner surface of the U-shaped claw is formed as a friction surface.

8. The self-unloading device for mine shoes according to claim 6, characterized in that, In the horizontal direction, the bottom of the U-shaped recess of the U-shaped claw maintains a preset distance from the support rod.

9. The self-service detachment device for mining shoes according to claim 8, characterized in that, The preset distance is set to be no less than 4.5cm.

10. A manufacturing process for a self-service mine shoe detachment device according to any one of claims 1 to 9, characterized in that, Includes the following steps: Obtain sheet metal profiles and / or rod profiles; Cut the plate profile to obtain the base, support rod, and gripper; The rod profile is divided to obtain the rod segments that form the handle; The base, the support rod, and the gripping part are fixedly connected in sequence to obtain the gripping assembly; The base and each rod are fixedly connected in segments to form the handle.

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