A collection device for storing sample coal pieces

Abstract

The utility model provides a kind of for storing collecting device of sampling coal block, including pedestal, support column, top plate, collecting hopper, bearing disc and collection barrel, support column is connected with pedestal and top plate and constitutes support frame body, bearing disc is rotatably installed on pedestal, its surface is circumferentially equipped with multiple placement sites for placing collection barrel, collecting hopper is fixed to top plate, its discharge end is opposite below, by rotating bearing disc, the opening of any collection barrel can be accurately moved to the discharge end below and receive coal sample.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal sampling equipment, and in particular relates to a collection device for storing sampled coal blocks. Background Technology

[0002] In industrial enterprises such as thermal power plants and chemical plants that use coal as raw material, sampling and analyzing incoming coal is a crucial step in quality control. The collected coal samples are used for testing to determine key indicators such as calorific value, sulfur content, and moisture content, which directly affect coal pricing, boiler combustion ratios, and the achievement of environmental protection targets.

[0003] In actual sampling operations, a frequent requirement is to collect samples from the same batch or multiple batches of incoming coal separately. For example, backup samples may be needed, meaning a coal sample is placed in two or more collection containers simultaneously; one is used for immediate testing, and the other is sealed and stored as a backup sample for retesting in case of disputes over test results. Alternatively, categorized collection may be required; when sampling coal from different suppliers or different batches consecutively, samples representing different sources need to be collected in separate containers, ensuring dedicated samples for dedicated containers, clear distinction, and absolute avoidance of confusion.

[0004] Currently, common sampling and collection devices typically consist of only one fixed collection bucket or trough. When the aforementioned sampling function needs to be performed, the operator must remain by the equipment, manually remove the full collection bucket after each sampling, and quickly replace it with an empty bucket to prepare for the next sampling. Clearly, this method is not only inefficient and difficult to adapt to frequent sampling, but also increases the workload of the operator, making the sampling and collection process cumbersome and disjointed. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a collection device for storing sampled coal blocks, in order to solve the problems of existing collection devices requiring manual interruption of the process during sample collection, cumbersome operation, and high labor intensity.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A collection device for storing sampled coal blocks includes: a base, a supporting column, a top plate, a collection hopper, a support plate, and a collection bucket;

[0008] The supporting column is fixedly connected to the upper surface of the base, and the top plate is fixedly connected to one end of the supporting column away from the base. A placement ring is fixedly connected to the upper surface of the bearing plate so that the upper surface of the bearing plate forms a placement position for placing the collection bucket. There are multiple placement positions, and the multiple placement positions are arranged at intervals along the circumference of the bearing plate.

[0009] The collection bucket has a storage cavity for collecting sampled coal blocks. The collection funnel is disposed on the top plate, with the collection end of the collection funnel located above the upper surface of the top plate and the discharge end of the collection funnel located below the lower surface of the top plate. The support plate is rotatably connected to the upper surface of the base, so that the opening of the storage cavity of each collection bucket placed in the placement position can be located directly below the discharge end.

[0010] Furthermore, a mounting sleeve is fixedly connected to the lower surface of the bearing plate, and a mounting post is fixedly connected to the upper surface of the base. The mounting sleeve is fastened to the mounting post, and the mounting post is provided with a mounting position for mounting a ball bearing. The ball bearing is disposed between the mounting sleeve and the mounting post.

[0011] Furthermore, the upper surface of the base is provided with a universal ball bearing;

[0012] The number of universal ball bearings is multiple, and the multiple universal ball bearings are arranged around the outside of the mounting column and are spaced apart along the circumference of the base.

[0013] Furthermore, the lower surface of the base is provided with a support leg, and a connecting flange is fixedly connected to one end of the support leg away from the base.

[0014] Furthermore, the carrier plate is equipped with a positioning mechanism;

[0015] The positioning mechanism includes a positioning sleeve, a positioning post, a return spring, and a limiting plate. The positioning sleeve is fixedly connected to the upper surface of the bearing plate. The positioning sleeve has a positioning chamber, a first through hole, and a second through hole that are interconnected. One end of the positioning post extends out of the positioning chamber through the first through hole, and the other end of the positioning post extends to the lower surface of the bearing plate through the second through hole. The limiting plate is fixedly connected to the positioning post. The return spring is sleeved on the positioning post. One end of the return spring abuts against the limiting plate, and the other end abuts against the inner wall of the positioning chamber. The upper surface of the base is provided with positioning holes corresponding to the positioning post.

[0016] Furthermore, the number of the positioning mechanism, the positioning hole, and the placement position are the same.

[0017] Furthermore, the upper surface of the base is provided with a positioning ring groove that communicates with the positioning hole;

[0018] The depth of the positioning ring groove is less than the depth of the positioning hole.

[0019] Furthermore, the end of the positioning post near the base is configured as a ball head.

[0020] Furthermore, a rubber pad layer is provided on the bottom surface of the placement position.

[0021] Through the above technical solution, a stable support frame is formed by the base, supporting columns and top plate working together, thereby ensuring the stable rotation of the bearing plate and the accurate reception of the collection bucket when receiving sampled coal blocks. Specifically, the bearing plate can form multiple placement positions through multiple placement rings, and each placement position can hold a collection bucket for collecting sampled coal blocks. When it is necessary to separate the sampled coal blocks (for example, to prepare a backup sample for the same coal sample, or to classify coal samples from different batches), simply rotate the bearing plate to quickly transport the empty or corresponding batch of collection buckets to the designated work position. That is, by rotating the bearing plate, the opening of the receiving cavity of any collection bucket can be accurately moved to the discharge end of the collection funnel, thereby ensuring that the sampled coal blocks can be correctly introduced into the target collection bucket. This allows coal samples to be efficiently and accurately introduced into different collection buckets in sequence without the need for manual intervention to change buckets.

[0022] In summary, the operation of switching collection buckets by rotating the carrier plate replaces the traditional and cumbersome manual bucket-changing process, which not only significantly improves work efficiency and reduces labor intensity, but also fundamentally avoids the risk of sample confusion caused by human error. Attached Figure Description

[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of a collection device for storing sampled coal blocks provided in an exemplary embodiment of this disclosure;

[0025] Figure 2 This is a schematic diagram of the structure of the carrier disk provided in an exemplary embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of the base structure provided in an exemplary embodiment of this disclosure;

[0027] Figure 4 This is a schematic diagram of the lower surface structure of the carrier disk provided in an exemplary embodiment of this disclosure;

[0028] Figure 5 This is a cross-sectional structural schematic diagram of the positioning mechanism provided in an exemplary embodiment of this disclosure;

[0029] Figure 6 This is a schematic diagram of the structure of the lower surface of the top plate provided in an exemplary embodiment of this disclosure.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base; 101. Positioning ring groove; 102. Positioning hole; 2. Support column; 3. Top plate; 4. Collection funnel; 5. Bearing plate; 501. Placement ring; 5011. Placement position; 6. Mounting sleeve; 7. Mounting column; 701. Mounting position; 8. Universal ball bearing; 9. Support leg; 901. Flange; 10. Positioning sleeve; 11. Positioning column; 12. Return spring; 13. Limiting plate. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] In a specific embodiment provided in this disclosure, a collection device for storing sampled coal blocks is provided, with reference to... Figures 1 to 6As shown, the collection device for storing sampled coal blocks includes: a base 1, a supporting column 2, a top plate 3, a collection funnel 4, a carrying plate 5, and a collection bucket. The supporting column 2 is fixedly connected to the upper surface of the base 1, and the top plate 3 is fixedly connected to one end of the supporting column 2 away from the base 1. A placement ring 501 is fixedly connected to the upper surface of the carrying plate 5, so that a placement position 5011 for placing the collection bucket is formed on the upper surface of the carrying plate 5. There are multiple placement positions 5011, which are arranged at intervals along the circumference of the carrying plate 5. The collection bucket has a storage cavity for collecting sampled coal blocks. The collection funnel 4 is set on the top plate 3, and the collection end of the collection funnel 4 is located above the upper surface of the top plate 3, while the discharge end of the collection funnel 4 is located below the lower surface of the top plate 3. The carrying plate 5 is rotatably connected to the upper surface of the base 1, so that the opening of the storage cavity of each collection bucket placed on the placement position 5011 can be located directly below the discharge end.

[0037] Through the above technical solution, the base 1, supporting column 2, and top plate 3 work together to form a stable support frame, thereby ensuring the stable rotation of the bearing plate 5 and the accurate reception of the collection bucket when receiving sampled coal blocks. Specifically, the bearing plate 5 can form multiple placement positions 5011 through multiple placement rings 501, and each placement position 5011 can hold a collection bucket for receiving sampled coal blocks. When it is necessary to separate the sampled coal blocks (for example, to prepare a backup sample for the same coal sample, or to classify coal samples from different batches), simply rotate the bearing plate 5 to place the empty or corresponding batch collection bucket. The collection bins are quickly transported to the designated workstation. By rotating the support plate 5, the opening of the receiving cavity of any collection bin can be precisely moved to directly below the discharge end of the collection funnel 4, ensuring that the sampled coal can be accurately introduced into the target collection bin. This allows coal samples to be efficiently and accurately introduced into different collection bins without manual intervention. In summary, the operation of switching collection bins by rotating the support plate 5 replaces the traditional cumbersome manual bin-changing process, which not only significantly improves work efficiency and reduces labor intensity, but also fundamentally avoids the risk of sample confusion caused by human error.

[0038] In some embodiments not shown, a drive motor is provided inside the base 1. The output shaft of the drive motor is connected to the central shaft of the carrier disk 5 through a coupling to drive the carrier disk 5 to rotate. The drive motor can be a stepper motor or a servo motor, thereby realizing precise angle control of the carrier disk 5.

[0039] In some implementations, reference Figure 3 and Figure 4As shown, a mounting sleeve 6 is fixed to the lower surface of the bearing plate 5, and a mounting post 7 is fixed to the upper surface of the base 1. The mounting sleeve 6 is fastened to the mounting post 7, and the mounting post 7 is provided with a mounting position 701 for mounting a ball bearing. The ball bearing is located between the mounting sleeve 6 and the mounting post 7. Specifically, the mounting post 7, which is fixed to the base 1, serves as a supporting shaft. The ball bearing installed on it can convert sliding friction into rolling friction, greatly reducing rotational resistance. The mounting sleeve 6, which is fixed to the lower surface of the bearing plate 5, is fastened to the outside of the mounting post 7 and engages with the outer ring of the ball bearing, so that the entire weight of the bearing plate 5 and the multiple collection buckets fully loaded on it can be evenly and smoothly transferred to the base 1 through the ball bearing. The ball bearing ensures that the bearing plate 5 rotates smoothly and stably to the base 1. Furthermore, due to the low frictional resistance, personnel can rotate the bearing plate 5 more conveniently and easily.

[0040] In some implementations, reference Figure 3 As shown, a universal ball bearing 8 is provided on the upper surface of the base 1;

[0041] Multiple universal ball bearings 8 are arranged around the outside of the mounting column 7 and spaced circumferentially along the base 1. These multiple ball bearings 8 further improve the rotational stability of the bearing disk 5. Specifically, the spherical structure of the multiple ball bearings 8 spaced circumferentially around the mounting column 7 allows them to simultaneously withstand radial and axial loads. When the bearing disk 5 rotates or experiences uneven loading due to the placement of the collection bucket, the multiple ball bearings 8 provide uniform, multi-point contact support below the outer edge of the bearing disk 5, greatly enhancing its anti-overturning capability and effectively preventing rotational jamming or disk deformation that may result from uneven load.

[0042] Multiple universal ball bearings 8 work in conjunction with the centrally located mounting column 7, which is equipped with ball bearings, to evenly distribute the force on the bearing plate 5. Specifically, the mounting column 7 with ball bearings bears the main axial load (vertical weight), while the circumferentially arranged multiple universal ball bearings 8 can bear the radial load (horizontal wobble and eccentric force). This ensures that the bearing plate 5 can always maintain horizontal and stable rotation even under full load or unbalanced conditions, significantly improving the smoothness of the bearing plate 5 during rotation. At the same time, the force distribution of the multiple universal ball bearings 8 can effectively reduce the load on the mounting column 7 with ball bearings, helping to reduce its wear and extend the service life of the entire device.

[0043] In some implementations, reference Figure 1As shown, the lower surface of the base 1 is provided with a support leg 9. The end of the support leg 9 opposite to the base 1 is fixedly connected to a connecting flange 901. The support leg 9 can raise the overall height of the base 1 so that the whole device is at a suitable working height. The connecting flange 901 fixed to the end of the support leg 9 opposite to the base 1 has through holes for anchor bolts to pass through, so that the entire device can be firmly fixed to the concrete foundation or steel platform by multiple anchor bolts.

[0044] For example, the connecting flange 901 can also be connected to lockable casters, thereby giving the device good mobility. Specifically, when the collection device needs to be moved to different sampling points or within a workshop, lockable casters can be installed on the connecting flange 901. These casters ensure that the device can be easily moved in all directions, greatly facilitating the transfer and layout optimization of the collection device. After reaching the designated working position, the locking mechanism of the casters can be triggered to effectively prevent them from rolling, making the device a stable working platform again and ensuring the stability of the bearing plate 5 during rotation and coal sample collection.

[0045] In some implementations, reference Figure 4 and Figure 5 As shown, the carrier plate 5 is equipped with a positioning mechanism, which can provide precise positioning for the carrier plate 5, ensuring that the collection chamber opening of the collection bucket can be accurately moved to directly below the discharge end. The positioning mechanism includes a positioning sleeve 10, a positioning post 11, a return spring 12, and a limiting plate 13. The positioning sleeve 10 is fixed to the upper surface of the carrier plate 5 and has a positioning chamber, a first through hole, and a second through hole that are interconnected. One end of the positioning post 11 extends out of the positioning chamber through the first through hole, and the other end of the positioning post 11 extends to the lower surface of the carrier plate 5 through the second through hole. The limiting plate 13 is fixed to the positioning post 11. The return spring 12 is sleeved on the positioning post 11. One end of the return spring 12 abuts against the limiting plate 13, and the other end abuts against the inner wall of the positioning chamber. The upper surface of the base 1 is provided with a positioning hole 102 corresponding to the positioning post 11. Specifically, when the operator rotates the carrier plate 5, the end of the positioning post 11 extending to the lower surface of the carrier plate 5 through the second through hole will slide against the upper surface of the base 1. When the carrier plate 5 rotates to the preset position (i.e., when a certain collection bucket is accurately aligned with the collection funnel 4), under the elastic force of the reset spring 12, the positioning pin 11 can accurately fall into the positioning hole 102 on the upper surface of the base 1.

[0046] The coordinated operation of the positioning column 11 and the positioning hole 102 ensures that the opening of the collection chamber of the collection bucket can be precisely fixed directly below the discharge end of the collection funnel 4 every time the bearing plate 5 stops, fundamentally avoiding positioning deviation caused by inertial overshoot and ensuring that the sampled coal blocks fall accurately into the collection bucket.

[0047] In some implementations, reference Figures 2 to 4 As shown, the number of positioning mechanisms, positioning holes 102 and placement positions 5011 are the same. There are four positioning mechanisms, positioning holes 102 and placement positions 5011. The other collection bucket can be switched to the discharge end of the collection funnel 4 by rotating the carrier plate 5 by 90°. The even distribution of the four positioning mechanisms makes the carrier plate 5 more stably locked, avoiding the slight tilt of the carrier plate 5 that may be caused by single-point positioning, and further ensuring the stability of the device in long-term operation.

[0048] In some implementations, reference Figure 3 As shown, the upper surface of the base 1 is provided with a positioning ring groove 101 that communicates with the positioning hole 102. The positioning ring groove 101 provides an auxiliary slide for the movement of the positioning column 11 in the non-locked state. In order to enable the bearing plate 5 to rotate more smoothly and stably, a coating to reduce friction can be added to the bottom surface of the positioning ring groove 101. The low friction coating can be a wear-resistant engineering plastic coating.

[0049] Meanwhile, the depth of the positioning ring groove 101 is less than the depth of the positioning hole 102, which allows the positioning pin 11 to switch clearly and reliably between the sliding and locking states. When the lower end of the positioning pin 11 slides in the shallower positioning ring groove 101, the return spring 12 is partially compressed, and the positioning pin 11 is restricted by the side wall of the positioning ring groove 101 to the correct circumferential trajectory. The positioning ring groove 101 provides guidance and avoids excessive frictional resistance. Once the bearing plate 5 rotates to align the positioning pin 11 with the positioning hole 102, the elastic potential energy stored in the return spring 12 will push the positioning pin 11 down, causing the positioning pin 11 to fall into the deeper positioning hole 102.

[0050] The height difference between the positioning ring groove 101 and the positioning hole 102 provides the operator with clear and distinct tactile and auditory feedback on locking, ensuring that the operator can more clearly understand whether the positioning post 11 is in the locked state.

[0051] In some implementations, reference Figure 5 As shown, the end of the positioning post 11 near the base 1 is configured as a ball head. Specifically, the ball head configuration can reduce the contact area between the positioning post 11 and the positioning ring groove 101, thereby reducing the friction between the two.

[0052] Meanwhile, the positioning mechanism is designed to achieve precise alignment between the collection bucket and the discharge end of the collection funnel 4. Its core function is positioning rather than absolute locking and fixing of the carrier plate 5. Therefore, the end of the positioning post 11 closest to the base 1 is configured as a ball head. Its core purpose is to ensure that the positioning post 11 can easily disengage from the positioning hole 102 with minimal resistance and in the most reliable manner when switching work positions.

[0053] Specifically, when the operator begins to rotate the bearing plate 5, the ball head first contacts the side wall of the positioning hole 102. At this point, due to the unique arc-shaped outer surface of the ball head, the circumferential thrust (tangential force) generated by the rotation of the bearing plate 5 is decomposed at the contact point. According to the principles of mechanics, this thrust can be decomposed into two components: a force perpendicular to the hole wall (radial force) and a force tangential to the spherical surface. It is this component perpendicular to the hole wall that acts on the inclined surface of the ball head, generating an effective upward force that causes the positioning pin 11 to move upward along its axial direction. This upward force can overcome the preload of the return spring 12, pushing the positioning pin 11 upward and retracting it into the positioning sleeve 10 through the second through hole, thereby allowing it to smoothly escape the constraint of the positioning hole 102.

[0054] In some embodiments, a rubber pad is provided on the bottom surface of the placement position 5011. Specifically, the rubber pad fixed to the bottom surface of the placement position 5011 directly contacts the bottom of the collection bucket, and its functions are multifaceted: First, the inherent high coefficient of friction of the rubber material provides excellent anti-slip effect for the collection bucket, effectively preventing the collection bucket from sliding or shifting due to inertia or vibration when the bearing plate 5 starts, rotates, or stops, ensuring that its initial position on the work station remains consistent; Second, when the sampled coal block falls into the collection bucket from a certain height, the rubber pad plays a good role in buffering and shock absorption. It absorbs part of the kinetic energy brought by the impact of the coal block, which not only reduces impact noise and improves the working environment, but also protects the collection bucket and the bearing plate 5 itself, reduces the risk of deformation or damage caused by long-term impact, and extends the service life of the equipment.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A collection device for storing sampled coal blocks, characterized in that, include: The base (1), supporting column (2), top plate (3), collection funnel (4), bearing plate (5), and collection bucket; The support column (2) is fixedly connected to the upper surface of the base (1), and the top plate (3) is fixedly connected to one end of the support column (2) away from the base (1). The placement ring (501) is fixedly connected to the upper surface of the bearing plate (5) so that a placement position (5011) for placing the collection bucket is formed on the upper surface of the bearing plate (5). There are multiple placement positions (5011), and the multiple placement positions (5011) are arranged at intervals along the circumference of the bearing plate (5). The collection bucket has a collection cavity for collecting sampled coal blocks. The collection funnel (4) is disposed on the top plate (3), and the collection end of the collection funnel (4) is located above the upper surface of the top plate (3), and the discharge end of the collection funnel (4) is located below the lower surface of the top plate (3). The bearing plate (5) is rotatably connected to the upper surface of the base (1) so that the opening of the collection cavity of each collection bucket placed on the placement position (5011) can be located directly below the discharge end.

2. The collection device for storing sampled coal blocks according to claim 1, characterized in that: The lower surface of the bearing plate (5) is fixedly connected to the mounting sleeve (6), and the upper surface of the base (1) is fixedly connected to the mounting post (7). The mounting sleeve (6) is fastened to the mounting post (7), and the mounting post (7) is provided with a mounting position (701) for mounting a ball bearing. The ball bearing is located between the mounting sleeve (6) and the mounting post (7).

3. A collection device for storing sampled coal blocks according to claim 2, characterized in that: The upper surface of the base (1) is provided with a universal ball bearing (8); The number of the universal ball bearings (8) is multiple, and the multiple universal ball bearings (8) are arranged around the outside of the mounting column (7) and the multiple universal ball bearings (8) are arranged at circumferential intervals along the base (1).

4. A collection device for storing sampled coal blocks according to claim 1, characterized in that: The base (1) has a support leg (9) on its lower surface, and a connecting flange (901) is fixedly connected to one end of the support leg (9) away from the base (1).

5. A collection device for storing sampled coal blocks according to claim 1, characterized in that: The carrier plate (5) is equipped with a positioning mechanism; The positioning mechanism includes a positioning sleeve (10), a positioning post (11), a return spring (12), and a limiting plate (13). The positioning sleeve (10) is fixed to the upper surface of the bearing plate (5). The positioning sleeve (10) has a positioning chamber, a first through hole, and a second through hole that are interconnected. One end of the positioning post (11) extends out of the positioning chamber through the first through hole, and the other end of the positioning post (11) extends to the lower surface of the bearing plate (5) through the second through hole. The limiting plate (13) is fixed to the positioning post (11). The return spring (12) is sleeved on the positioning post (11). One end of the return spring (12) abuts against the limiting plate (13), and the other end abuts against the inner wall of the positioning chamber. The upper surface of the base (1) is provided with a positioning hole (102) corresponding to the positioning post (11).

6. A collection device for storing sampled coal blocks according to claim 5, characterized in that: The number of the positioning mechanism, the positioning hole (102), and the placement position (5011) are the same.

7. A collection device for storing sampled coal blocks according to claim 5, characterized in that: The upper surface of the base (1) is provided with a positioning annular groove (101) that communicates with the positioning hole (102); The depth of the positioning ring groove (101) is less than the depth of the positioning hole (102).

8. A collection device for storing sampled coal blocks according to claim 5, characterized in that: The end of the positioning post (11) near the base (1) is configured as a ball head.

9. A collection device for storing sampled coal blocks according to claim 1, characterized in that: A rubber pad layer is provided on the bottom surface of the placement position (5011).

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