Protective device

Abstract

The utility model provides a protection device which comprises a supporting side protection plate, a supporting side protection plate, a supporting side protection plate and a supporting side protection plate body, and the supporting side protection plate body is internally provided with a sliding cavity communicated with the outside; at least part of the telescopic plate is movably arranged in the sliding cavity so as to increase or reduce the area of the supporting side guard plate; sliding grooves are formed in the opposite side walls, close to the free end of the supporting side protection plate, of the supporting side protection plate, clamping blocks are arranged in the sliding grooves, containing grooves allowing the clamping blocks to freely stretch out are formed in the side walls, close to the telescopic plate, of the sliding grooves, and a plurality of clamping grooves used in cooperation with the containing grooves are formed in the opposite side walls of the two sides of the telescopic plate. When one end of the clamping block extends into any one of the multiple clamping grooves from the containing groove through the sliding groove, the telescopic plate and the supporting side protection plate are relatively fixed. The problem that in the mining process in the prior art, due to the fact that the size of a protection baffle is fixed, surrounding rock collapses is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a protective device. Background Art

[0002] In the coal mining industry, the mechanization of fully mechanized mining faces has greatly improved mine production efficiency. Hydraulic supports, as key equipment in fully mechanized mining faces, primarily support the roof and surrounding rock to protect personnel and equipment within the face. However, in practice, traditional hydraulic support protection devices have limitations, particularly in working faces with complex geological conditions. The instability of the surrounding rock can prevent the protection devices from fully covering all hazardous areas, increasing the risk of surrounding rock collapse.

[0003] In existing technology, the protective baffles of hydraulic supports are generally fixed in size, making them difficult to adapt to changes in surrounding rock shape and working face conditions. When the surrounding rock of the working face is irregular in shape, or when geological conditions change, requiring a larger protective area, the surrounding rock may still collapse in areas where the traditional baffles are not in contact, posing a safety threat to personnel and equipment. Therefore, to reduce the risk of surrounding rock collapse, increase the contact area between the baffle and the surrounding rock, and ensure the safety protection capability of the hydraulic support in the fully mechanized mining working face, a protective device that can be adjusted to the working face conditions is urgently needed. Utility Model Content

[0004] The main purpose of the utility model is to provide a protective device to solve the problem in the prior art that, during the mining process, the surrounding rock collapses due to the fixed size of the protective baffle.

[0005] In order to achieve the above object, according to one aspect of the present invention, a protective device is provided, comprising:

[0006] A supporting guard plate is provided with a sliding cavity in the interior thereof which is in communication with the outside world;

[0007] A telescopic plate, at least a portion of which is movably disposed in the sliding cavity to increase or decrease the area of ​​the supporting guard plate;

[0008] A sliding groove is provided on the side wall of the supporting guard plate near its free end, a card block is provided in the sliding groove, a receiving groove for the card block to freely extend is provided on the side wall of the sliding groove relatively close to the telescopic plate, and a plurality of card slots for use with the receiving groove are provided on the opposite side walls of the telescopic plate;

[0009] When one end of the clamping block extends from the accommodating slot into any one of the plurality of clamping slots through the sliding slot, the telescopic plate and the supporting guard plate are relatively fixed.

[0010] Furthermore, the clamping block includes a first movable plate, and a second movable plate provided at one end of the first movable plate, and an extension direction of the first movable plate is perpendicular to an extension direction of the second movable plate;

[0011] The clamping head is arranged at one end of the second movable plate away from the first movable plate, so as to extend into the clamping slot and cooperate with the clamping slot for use.

[0012] Furthermore, the protective device also includes:

[0013] A reset component is arranged in the slide groove, and the reset component has a locked state and an unlocked state;

[0014] Among them, when it is in a locked state, the position of the telescopic plate is fixed relative to the supporting guard plate, and when it is in an unlocked state, the position of the telescopic plate is fixed relative to the supporting guard plate.

[0015] Furthermore, the reset component includes:

[0016] A limiting rod, the limiting rod is fixed in the slide groove, and the clamping block is movably arranged relative to the limiting rod through the second movable plate;

[0017] The elastic member is sleeved on the outside of the limiting rod to enable the clamping block to enter the clamping slot.

[0018] Furthermore, one end of the first movable plate away from the second movable plate extends out of the sliding groove and is provided with a pull ring.

[0019] Furthermore, the protective device also includes:

[0020] Support assembly, the support assembly includes:

[0021] A supporting top beam, wherein one end of the supporting guard plate is rotatably connected to the supporting top beam;

[0022] The first telescopic component, the fixed end of the first telescopic component is arranged on the supporting top beam, and the telescopic end of the first telescopic component is arranged on a side of the supporting guard plate relatively close to the supporting top beam.

[0023] Furthermore, the support assembly further comprises:

[0024] The supporting bottom plate is provided with a second telescopic component, and the other end of the second telescopic component is connected to the supporting top beam.

[0025] Furthermore, the support assembly further comprises:

[0026] A supporting shield plate, one end of which is rotatably arranged relative to the supporting top beam;

[0027] a connecting rod, one end of the connecting rod being rotatably disposed relative to the supporting base plate, and the other end of the connecting rod being rotatably connected to the supporting shield plate;

[0028] a third telescopic member, one end of the third telescopic member being rotatably connected to the upper surface of the support base plate, and the other end of the third telescopic member being connected to the inner surface of the support shield plate;

[0029] Wherein, the third telescopic component extends in the vertical direction.

[0030] Furthermore, the supporting base plate includes:

[0031] Support body;

[0032] The limiting portion is arranged on two opposite edges of the supporting body to increase the contact area of ​​the supporting body.

[0033] Furthermore, the support assembly further includes a support base plate;

[0034] The protective device further includes: a pushing component, the pushing component including;

[0035] A pull rod, one end of which is arranged on the supporting base plate;

[0036] A connecting rod, one end of which is connected to an end of the pull rod away from the supporting base plate, and the other end of the connecting rod is provided with a connecting hole.

[0037] By applying the technical solution of the utility model, during use, when it is necessary to increase the area of ​​the supporting guard plate, one end of the card block can be retracted into the slide groove, and then the telescopic plate can be pulled in the direction away from the supporting guard plate. When the total area of ​​the telescopic plate outside the sliding cavity and the area of ​​the supporting guard plate is sufficient, one end of the card block is extended from the slide groove into the card groove to fix the position of the telescopic plate.

[0038] Through the sliding connection between the telescopic plate and the supporting guard plate, dynamic adjustment of the protection area is achieved, so that the protective device can adapt to the surrounding rocks of the working surface of different shapes and sizes, thereby improving the protection effect. This adjustability is particularly important when the surrounding rocks are irregular or the working conditions change, which can ensure that the protective device fully covers the potential safety risk area and reduce the risk of surrounding rock collapse. The telescopic plate is fixed by the cooperation of the card block and the card slot, which is simple and quick to operate. The user only needs to pull the telescopic plate to the desired position, and then the card block will be stuck in the corresponding card slot to complete the position fixation of the telescopic plate. No additional complex operations or tools are required, which improves work efficiency. The card block and the card slot are designed to ensure the stability of the telescopic plate in the stretched state. Even under harsh working conditions, the telescopic plate is not easily displaced due to external forces, which further improves the reliability and stability of the entire protective device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0040] Figure 1 The figure shows the overall structure of the protective device according to the embodiment of the present application;

[0041] Figure 2 A side view of a protective device according to an embodiment of the present application is shown;

[0042] Figure 3 A schematic diagram of the structure of the support and guard plates and the telescopic plates in an embodiment of the present application is shown;

[0043] Figure 4 A schematic diagram showing the positions of the support and guard plates and the telescopic plates according to an embodiment of the present application is shown;

[0044] Figure 5 The embodiment of the present application is shown Figure 4 A magnified schematic diagram of point A in FIG.

[0045] The above drawings include the following reference numerals:

[0046] 1. Support top beam; 2. Support auxiliary guard plate; 3. First telescopic component; 4. Telescopic plate; 5. Slot; 6. Slide; 7. Block; 9. Limit rod; 701. First movable plate; 702. Second movable plate; 703. Clamp; 10. Elastic member; 11. Pull ring; 12. Support bottom plate; 13. Second telescopic component; 14. Support shield plate; 15. Connecting rod; 16. Limiting part; 17. Third telescopic component; 18. Pushing component; 181. Pull rod; 182. Connecting rod. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] In the coal mining industry, the mechanization of fully mechanized mining faces has greatly improved mine production efficiency. Hydraulic supports, as key equipment in fully mechanized mining faces, primarily support the roof and surrounding rock to protect personnel and equipment within the face. However, in practice, traditional hydraulic support protection devices have limitations, particularly in working faces with complex geological conditions. The instability of the surrounding rock can prevent the protection devices from fully covering all hazardous areas, increasing the risk of surrounding rock collapse.

[0049] In existing technology, the protective baffles of hydraulic supports are generally fixed in size, making them difficult to adapt to changes in surrounding rock shape and working face conditions. When the surrounding rock of the working face is irregular in shape, or when geological conditions change, requiring a larger protective area, the surrounding rock may still collapse in areas where the traditional baffles are not in contact, posing a safety threat to personnel and equipment. Therefore, to reduce the risk of surrounding rock collapse, increase the contact area between the baffle and the surrounding rock, and ensure the safety protection capability of the hydraulic support in the fully mechanized mining working face, a protective device that can be adjusted to the working face conditions is urgently needed.

[0050] The main purpose of the utility model is to provide a protective device to solve the problem in the prior art that, during the mining process, the surrounding rock collapses due to the fixed size of the protective baffle.

[0051] The present application provides a protective device, comprising: a supporting guard plate 2, wherein a sliding cavity communicating with the outside is formed inside the supporting guard plate 2;

[0052] The telescopic plate 4, at least a portion of which is movably disposed in the sliding cavity to increase or decrease the area of ​​the supporting guard plate 2;

[0053] Among them, a slide groove 6 is opened on the side wall of the supporting guard plate 2 near its free end, and a card block 7 is arranged in the slide groove 6. A side wall of the slide groove 6 relatively close to the telescopic plate 4 is provided with a receiving groove for the card block 7 to freely extend. A plurality of card slots 5 for use with the receiving groove are opened on the opposite side walls of the telescopic plate 4.

[0054] When one end of the clamping block 7 extends from the accommodating groove into any one of the plurality of clamping grooves 5 through the sliding groove 6 , the telescopic plate 4 and the supporting guard plate 2 are relatively fixed.

[0055] Specifically, the protective device provided by the present application includes a support guard plate 2, such as Figure 2 and Figure 3 As shown, the support guard plate 2 is arranged on the support top beam 1 and is hinged to the support top beam 1. A sliding cavity connected to the outside is provided inside the support guard plate 2. A telescopic plate 4 is provided slidingly in the sliding cavity. When the telescopic plate 4 is extended, the contact area of ​​the support guard plate 2 can be increased. When the telescopic plate 4 is retracted, the contact area of ​​the support guard plate 2 can be reduced. The specific method is that slide grooves 6 are respectively provided on the side walls on both sides of the end of the support guard plate 2 away from the support top beam 1. The specific position is as shown in FIG. Figure 5As shown, a card block 7 is provided in the slide groove 6, and a receiving groove is also provided on one side of the slide groove 6. The receiving groove provides space for the card block 7 to extend out of the slide groove 6 or retract into the slide groove 6. A plurality of card slots 5 are provided on the side walls on both sides of the telescopic plate 4. The plurality of card slots 5 are arranged along the telescopic direction of the telescopic plate 4. The card slots 5 can be used in conjunction with the receiving groove. When one end of the card block 7 enters any one of the card slots 5 from the receiving groove through the slide groove 6, the telescopic plate 4 and the supporting guard plate 2 are relatively fixed. When one end of the card block 7 retracts from the card slot 5 to the slide groove 6, the telescopic plate 4 and the supporting guard plate 2 are relatively movable.

[0056] During use, when it is necessary to increase the area of ​​the supporting guard plate 2, one end of the block 7 can be retracted into the slide groove 6, and then the telescopic plate 4 can be pulled away from the supporting guard plate 2. When the area of ​​the telescopic plate 4 outside the sliding cavity and the total area of ​​the supporting guard plate 2 are sufficient, one end of the block 7 can be extended from the slide groove 6 into the card slot 5 to fix the position of the telescopic plate 4.

[0057] Through the sliding connection between the telescopic plate 4 and the supporting guard plate 2, dynamic adjustment of the protection area is achieved, so that the protection device can adapt to the surrounding rocks of the working surface of different shapes and sizes, thereby improving the protection effect. This adjustability is particularly important when the surrounding rocks are irregular or the working conditions change, which can ensure that the protection device fully covers the potential safety risk area and reduce the risk of surrounding rock collapse. The fixation of the telescopic plate 4 is achieved through the cooperation of the clamping block 7 and the clamping slot 5. The operation is simple and quick. The user only needs to pull the telescopic plate 4 to the required position, and then the clamping block 7 will be clamped into the corresponding clamping slot 5 to complete the position fixation of the telescopic plate 4. No additional complex operations or tools are required, which improves work efficiency. The clamping design of the clamping block 7 and the clamping slot 5 ensures the stability of the telescopic plate 4 in the stretched state. Even under harsh working conditions, the telescopic plate 4 is not easily displaced due to external forces, further improving the reliability and stability of the entire protective device.

[0058] Furthermore, the clamping block 7 includes a first movable plate 701 and a second movable plate 702 provided at one end of the first movable plate 701 , and the extension direction of the first movable plate 701 is perpendicular to the extension direction of the second movable plate 702 ;

[0059] The clamping head 703 is provided at one end of the second movable plate 702 away from the first movable plate 701 so as to extend into the clamping slot 5 and cooperate with the clamping slot 5 for use.

[0060] Specifically, if Figure 5As shown, the clamping block 7 includes a first movable plate 701, which extends along the telescopic direction of the telescopic plate 4, and also includes a second movable plate 702, the extension direction of the second movable plate 702 is perpendicular to the extension direction of the first movable plate 701, and also includes a clamping head 703, which is arranged at one end of the second movable plate 702 away from the first movable plate 701, and the size of the clamping head 703 is just enough to pass through the accommodating groove and the clamping slot 5. The first movable plate 701, the second movable plate 702 and the clamping head 703 together form a cross-shaped clamping block 7.

[0061] The first movable plate 701 and the second movable plate 702 of the clamping block 7 form a cross shape with the clamping head 703. This structure can provide a more stable clamping effect. When the telescopic plate 4 is connected to the supporting guard plate 2, the cross-shaped clamping block 7 can better cooperate with the clamping slot 5. Even under severe vibration or surrounding rock pressure on the working surface, the position of the telescopic plate 4 can be kept stable and not easy to fall out, thereby improving the reliability of the entire protective device. The size design of the clamping head 703 is just able to be clamped with the clamping slot 5 through the accommodating slot. This precise size control ensures that the clamping block 7 can accurately clamp with the corresponding clamping slot 5 when the telescopic plate 4 is stretched to different positions, avoiding the problem of clamping failure or unstable fixation of the telescopic plate 4 due to size mismatch. The problem is solved, and the stability of the device is enhanced. The structural design of the cross-shaped block 7 enables the block 7 to slide in the slide groove 6 and enter the slot 5 smoothly without precise alignment. At the same time, the design of the clamping head 703 enables the block 7 to quickly fit into the slot 5 under the push of the spring, which greatly simplifies the adjustment and locking process of the telescopic plate 4 and improves the operating efficiency. The extension direction of the second movable plate 702 is perpendicular to the first movable plate 701. This vertical extension design provides a larger engaging area in a limited space, making the block 7 more firmly fixed in the slot 5, while also reducing the space occupied by the block 7 in the slide groove 6, optimizing the internal structure of the protective device, and improving the overall compactness and space utilization of the device.

[0062] Furthermore, the protective device further comprises: a reset component, which is arranged in the slide groove 6 and has a locked state and an unlocked state;

[0063] Among them, when in the locked state, the position of the telescopic plate 4 is fixed relative to the supporting guard plate 2, and when in the unlocked state, the position of the telescopic plate 4 is fixed relative to the supporting guard plate 2;

[0064] The reset component includes: a limit rod 9, the limit rod 9 is fixed in the slide groove 6, and the clamping block 7 is movably arranged relative to the limit rod 9 through the second movable plate 702;

[0065] The elastic member 10 is sleeved on the outside of the limiting rod 9 to enable the clamping block 7 to enter the clamping slot 5 .

[0066] Specifically, if Figure 5 When the cam 703 is in the unlocked position, the spring 703 is in the unlocked position, and the spring 703 is in the unlocked position, so that the cam 703 can be locked and unlocked.

[0067] When the cam 703 is in the locked position, the second movable plate 702 can be manually operated to move along the limit rod 9, compress the elastic member 10, and move the cam 703 out of the slot 5 and into the slot 6, thereby releasing the fixed relationship between the cam 703 and the supporting guard plate 2, and realizing free extension and retraction of the cam 703. This unlocking mechanism is flexible and controllable, and can quickly adjust the position of the telescopic plate 4 according to actual needs. The design of the limit rod 9 not only provides a guide for the movement of the block 7, but also realizes the position adjustment and fixation of the telescopic plate 4 in a limited space, optimizes the internal structure of the device, saves space, and makes the entire protective device more compact. It is suitable for space-constrained comprehensive mining working face environments. Through the locking and unlocking mechanism of the reset component, the operator can safely and efficiently complete the adjustment and fixation of the telescopic plate 4, avoiding the need for complex operations in high-pressure and high-risk comprehensive mining working face environments, reducing operational risks, and improving work efficiency.

[0068] Furthermore, one end of the first movable plate 701 away from the second movable plate 702 extends out of the sliding groove 6 and is provided with a pull ring 11 .

[0069] Furthermore, the protective device further comprises: a support assembly, the support assembly comprising:

[0070] The supporting top beam 1 and one end of the supporting guard plate 2 are rotatably connected to the supporting top beam 1;

[0071] The first telescopic component 3 has a fixed end provided on the supporting top beam 1 , and a telescopic end provided on a side of the supporting guard plate 2 relatively close to the supporting top beam 1 .

[0072] Furthermore, if Figure 1 and Figure 2 As shown, the protective device also includes a support assembly, which includes a support top beam 1. The bottom surface of the support top beam 1 is hinged to the support guard plate 2. A first telescopic component 3 is also hinged to the bottom surface of the support top beam 1. During use, when the support guard plate 2 needs to be unfolded, the first telescopic component 3 is controlled to extend. Under the action of the first telescopic component 3, the free end of the support guard plate 2 will move in the direction away from the support top beam 1, and the angle between the support guard plate 2 and the support top beam 1 gradually increases, so that the support guard plate 2 can be opened or retracted.

[0073] The support top beam 1 and the support auxiliary guard plate 2 of the present application are connected in a hinged manner, and the telescopic function of the first telescopic component 3 enables the support auxiliary guard plate 2 to be expanded and retracted under different height conditions. This design can adapt to the changes in the height of the surrounding rock of the comprehensive mining working face, ensuring that the protective device can be effectively deployed under various working conditions to provide comprehensive protection. The telescopic mechanism of the first telescopic component 3 enables the free end of the support auxiliary guard plate 2 to move away from the support top beam 1, thereby increasing the coverage range of the support auxiliary guard plate 2. When the working face advances or the protection area needs to be adjusted, this flexibility can quickly adjust the layout of the protective device and improve work efficiency. By controlling the expansion and contraction of the first telescopic component 3, the support auxiliary guard plate 2 can be expanded and retracted without the need for complicated manual operation, simplifying the operation process, and the operator can quickly respond to the work surface. The dynamic adjustment capability of the first telescopic component 3 enables the support guard plate 2 to adjust its protection coverage in real time according to the changes in the surrounding rock conditions. This dynamic protection mechanism can better cope with the uncertainty of the geological conditions of the working face and reduce the safety risks caused by insufficient protection. The design of the support component not only enhances the functionality of the protection device, but also optimizes its spatial layout, so that the entire device can be compactly folded when not in use, reducing the occupied space and facilitating transportation and storage. The coordinated use of the support top beam 1 and the first telescopic component 3 ensures the structural stability of the support guard plate 2 in the expanded state. Even under the high pressure and high vibration conditions of the comprehensive mining working face, the support guard plate 2 can remain stable, thereby improving the reliability and stability of the entire protection device.

[0074] Furthermore, the support assembly further includes: a support base plate 12 , a second telescopic component 13 is provided on the support base plate 12 , and the other end of the second telescopic component 13 is connected to the support top beam 1 .

[0075] Specifically, a second telescopic component 13 is connected to the support base plate, and the other end of the second telescopic component 13 is hinged to the support top beam 1. When the second telescopic component 13 is extended, the vertical distance between the support top beam 1 and the support base plate 12 will increase.

[0076] Furthermore, the support assembly further comprises: a support shield plate 14, one end of which is rotatably arranged relative to the support top beam 1;

[0077] A connecting rod 15, one end of the connecting rod 15 is rotatably disposed relative to the supporting base plate 12, and the other end of the connecting rod 15 is rotatably connected to the supporting shield plate 14;

[0078] a third telescopic member 17 , one end of the third telescopic member 17 being rotatably connected to the upper surface of the support base 12 , and the other end of the third telescopic member 17 being connected to the inner surface of the support shield 14 ;

[0079] The third telescopic component 17 extends in the vertical direction.

[0080] Specifically, if Figure 1 and Figure 2 As shown, the support assembly also includes a support shield plate 14, one end of the support shield plate 14 is hinged to the end of the support top beam 1 away from the support shield plate 2, and a connecting rod 15 is also connected to the end of the support shield plate 14 away from the support top beam 1, and the end of the connecting rod 15 away from the support shield plate 14 is hinged to the support base plate 12, and a third telescopic component 17 is also hinged to the upper surface of the support base plate 12, and the other end of the third telescopic component 17 is hinged to the inner surface of the support shield plate 14. During use, when the third telescopic component 17 is extended, the angle between the support shield plate 14 and the support top beam 1 gradually increases, and the connecting rod 15 gradually approaches a vertical state.

[0081] Through the hinged design between the support top beam 1 and the support guard plate 2, and the dynamic adjustment capability of the first telescopic component 3, the protective device can flexibly adapt to the dynamic changes in the height of the surrounding rock of the comprehensive mining working face, ensuring that sufficient protective coverage can be provided under any geological conditions. At the same time, it can be folded when not in use, saving space and facilitating maintenance and transportation. The expansion or retraction of the support guard plate 2 can be achieved by controlling the expansion and contraction of the first telescopic component 3. The operation process is simple and fast, which greatly reduces the time and complexity of manual adjustment, allowing the operator to quickly respond to changes in the working face environment and improve work efficiency and safety. The telescopic function of the first telescopic component 3 enables it to adjust the protection range in real time according to the specific conditions of the surrounding rock. This dynamic protection mechanism greatly improves the adaptability and effectiveness of the protective device, reduces the safety risks and waste of resources caused by insufficient or excessive protection coverage, and the synergistic effect of the support top beam 1, the support guard plate 2 and the first telescopic component 3 ensures that the protective device maintains structural stability in a high-pressure and high-vibration working environment, enhances the protection effect, reduces the risk of equipment damage and personal injury, and improves the reliability and stability of the entire system.

[0082] Furthermore, the support base plate 12 includes: a support body;

[0083] The limiting portion 16 is provided on two opposite edges of the supporting body to increase the contact area of ​​the supporting body.

[0084] Specifically, the limiting portion 16 is arranged on the edges of the opposite sides of the support body, which can significantly increase the contact area between the support body and the surrounding rock, especially in working faces with unstable geological conditions or large surrounding rock pressure. Increasing the contact area can better disperse and resist the surrounding rock pressure, and reduce the risk of the support tipping or movement. The limiting portion 16 forms an additional support point on the edge of the support body, which helps to improve the compressive strength and support strength of the entire support, ensuring that the hydraulic support can remain stable under harsh working conditions. The design of the limiting portion 16 takes into account the efficient use of space. It does not take up additional working surface space, but cleverly utilizes the edge of the support body, increasing the protection area while keeping the working surface unobstructed, leaving enough space for the operation of other equipment, and improving the operating efficiency of the entire comprehensive mining working face.

[0085] Furthermore, the support assembly further includes a support base plate 12;

[0086] The protective device further comprises: a pushing component 8, the pushing component 8 comprises;

[0087] A pull rod 181, one end of which is disposed on the supporting base plate 12;

[0088] The connecting rod 182 has one end connected to the end of the pull rod 181 away from the supporting base plate 12 , and the other end of the connecting rod 182 is provided with a connecting hole.

[0089] Specifically, the protective device also includes a pushing component 8, which includes a pull rod 181 arranged on the supporting base plate 12, and a connecting rod 182 arranged on the pull rod 181. The other end of the connecting rod 182 is provided with a connecting hole for connecting with other devices.

[0090] The design of the pushing component 8 allows the operator to easily move the entire protective device by controlling the pull rod 181. The addition of the connecting rod 182, especially the connecting hole at the other end thereof, provides an interface for connecting with an external pushing device (such as a pushing jack) or other equipment, making the pushing operation of the protective device more efficient and labor-saving, reducing the intensity of manual operation, and improving the speed and accuracy of equipment pushing. Through the connection between the pushing component 8 and the external device, the operator can control the pushing of the protective device and the operation of other related equipment, such as the propulsion of the conveyor, without leaving the operating position.

[0091] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0092] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0093] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0094] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0095] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0096] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A protective device, characterized in that: include: A supporting and guarding plate (2), wherein a sliding cavity communicating with the outside is provided inside the supporting and guarding plate (2); a telescopic plate (4), at least a portion of which is movably disposed in the sliding cavity to increase or decrease the area of ​​the supporting and guarding plate (2); A sliding groove (6) is provided on the side wall of the supporting guard plate (2) that is relatively close to the free end thereof, a clamping block (7) is provided in the sliding groove (6), a receiving groove for allowing the clamping block (7) to freely extend is provided on a side wall of the sliding groove (6) that is relatively close to the telescopic plate (4), and a plurality of clamping grooves (5) for use with the receiving groove are provided on the opposite side walls of the telescopic plate (4); When one end of the clamping block (7) extends from the accommodating slot into any one of the plurality of clamping slots (5) through the sliding slot (6), the telescopic plate (4) and the supporting guard plate (2) are relatively fixed.

2. The protective device according to claim 1, characterized in that The clamping block (7) comprises a first movable plate (701) and a second movable plate (702) provided at one end of the first movable plate (701), wherein the extension direction of the first movable plate (701) is perpendicular to the extension direction of the second movable plate (702); A clamping head (703) is provided at an end of the second movable plate (702) away from the first movable plate (701) so as to extend into the clamping slot (5) and cooperate with the clamping slot (5).

3. The protective device according to claim 2, characterized in that: The protective device also includes: A reset component, the reset component is arranged in the slide groove (6), and the reset component has a locked state and an unlocked state; Wherein, when in the locked state, the position of the telescopic plate (4) is fixed relative to the supporting guard plate (2), and when in the unlocked state, the position of the telescopic plate (4) is fixed relative to the supporting guard plate (2).

4. The protective device according to claim 3, characterized in that: The reset component includes: a limiting rod (9), wherein the limiting rod (9) is fixedly arranged in the sliding groove (6), and the clamping block (7) is movably arranged relative to the limiting rod (9) via the second movable plate (702); An elastic member (10) is sleeved on the outside of the limiting rod (9) to enable the clamping block (7) to enter the clamping slot (5).

5. The protective device according to claim 2, characterized in that: One end of the first movable plate (701) away from the second movable plate (702) extends out of the sliding groove (6) and is provided with a pull ring (11).

6. The protective device according to claim 1, characterized in that The protective device also includes: A support assembly, the support assembly comprising: A supporting top beam (1), one end of the supporting guard plate (2) being rotatably connected to the supporting top beam (1); A first telescopic component (3), wherein a fixed end of the first telescopic component (3) is arranged on the supporting top beam (1), and a telescopic end of the first telescopic component (3) is arranged on a side of the supporting guard plate (2) relatively close to the supporting top beam (1).

7. The protective device according to claim 6, characterized in that The support assembly further comprises: A supporting base plate (12) is provided with a second telescopic component (13), and the other end of the second telescopic component (13) is connected to the supporting top beam (1).

8. The protective device according to claim 7, characterized in that: The support assembly further comprises: a supporting shield plate (14), one end of which is rotatably arranged relative to the supporting top beam (1); a connecting rod (15), one end of the connecting rod (15) being rotatably arranged relative to the supporting base plate (12), and the other end of the connecting rod (15) being rotatably connected to the supporting shield plate (14); a third telescopic component (17), one end of the third telescopic component (17) being rotatably connected to the upper surface of the supporting base plate (12), and the other end of the third telescopic component (17) being connected to the inner surface of the supporting shield plate (14); Wherein, the third telescopic component (17) extends in a vertical direction.

9. The protective device according to claim 7, characterized in that: The supporting base plate (12) comprises: Support body; A limiting portion (16) is provided on edges of two opposite sides of the supporting body to increase the contact area of ​​the supporting body.

10. The protective device according to claim 6, characterized in that The support assembly further includes a support base plate (12); The protective device further comprises: a pushing component (8), wherein the pushing component (8) comprises: A pull rod (181), one end of which is disposed on the supporting base plate (12); A connecting rod (182), one end of which is connected to an end of the pull rod (181) away from the supporting base plate (12), and the other end of the connecting rod (182) is provided with a connecting hole.

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