Protective cover safety protection device

Abstract

The utility model discloses a protective cover safety protection device, and belongs to the technical field of equipment protective covers. Comprising a protective cover shell which is provided with an opening and a pin hole. And the protective cover door is matched with the opening of the protective cover shell and hinged to the protective cover shell, and when the protective cover door rotates to the closed position of the protective cover shell, the protective cover door intersects with the pin hole in the axial direction. The locking and releasing assembly is arranged on the protective cover shell, one end of the locking and releasing assembly penetrates through the pin hole and protrudes out of the interior of the protective cover shell, and the other end of the locking and releasing assembly can be completely separated from the interior of the protective cover shell by pulling. The protective cover door can abut against the locking and releasing assembly extending into the protective cover shell in the rotary closing process. In the closing process, an operator needs one hand to press down and close the protective cover, and the other hand pulls the outer end of the locking and unlocking assembly at the same time, so that the locking and unlocking assembly is completely separated. In the process, the potential finger injury risk caused by the fact that the other hand is placed on the side face or the lower portion of the protective cover by mistake when an operator closes the protective cover door is effectively avoided.

Description

Technical Field

[0001] This application relates to the field of equipment protective cover technology, and in particular to a protective cover safety protection device. Background Technology

[0002] In wire drawing and twisting equipment, the numerous high-speed rotating components inside undoubtedly pose a significant safety hazard during operation. During continuous high-speed operation, these components are highly susceptible to loosening, detachment, or even breakage due to vibration, wear, or other external factors, resulting in scattered debris that poses a direct risk of physical injury to on-site operators.

[0003] To address this challenge, industrial safety standards generally require the installation of protective covers around rotating parts to prevent potential injuries through physical isolation. These covers not only effectively block direct contact with rotating parts but also reduce the impact of noise generated by rotation on operators. In particular, for applications requiring reduced noise pollution, the design of these covers is often more complex, employing a multi-layered structure combining internal mesh panels with external steel plates and filled with high-efficiency sound-absorbing cotton. While this design significantly improves sound insulation, it also introduces a significant problem—a substantial increase in the overall weight of the protective cover.

[0004] In practice, due to the considerable weight of the protective cover, if an operator attempts to close it with one hand and their other hand is accidentally positioned in the path of the cover's movement, especially to the side or below, the rapid closure of the cover could result in severe compression or shearing injuries, leading to irreversible consequences such as finger crushing or even amputation. Therefore, ensuring safety during the closing process of the protective cover has become a critical issue that urgently needs to be addressed in the field of safety protection for wire drawing and twisting equipment. Utility Model Content

[0005] The purpose of this application is to provide a protective cover safety device to solve the problem that operators may suffer hand injuries when closing the protective cover in the prior art.

[0006] To achieve the above objectives / to solve the above technical problems, this application adopts the following technical solution:

[0007] On one hand, this application provides a protective cover safety protection device, comprising: a protective cover safety protection device, characterized in that it includes:

[0008] The protective cover has an opening with a pin hole.

[0009] The protective cover door fits into the opening of the protective cover shell and is hinged to the protective cover shell. When the protective cover door is rotated to the closed position with the protective cover shell, the protective cover door intersects the pin hole axially upward.

[0010] A locking and releasing assembly is disposed on the protective cover, with one end passing through the pin hole and protruding inside the protective cover. By pulling the other end, the locking and releasing assembly can be completely detached from the protective cover.

[0011] The protective housing is a shell structure with an opening, typically used for equipment maintenance, inspection, or operation. The protective door fits into the housing, and its rotation opens or closes the opening. When closed, the door creates a sealed space protecting the internal wire drawing and twisting equipment. A locking-release assembly is mounted on the housing, communicating with a pin hole. One end passes through the pin hole and protrudes from the housing; pulling the other end completely disengages the assembly from the housing, thus removing any restriction on the door's rotation.

[0012] During the rotation and closing process, the protective cover door may encounter a locking and releasing mechanism that extends into the protective cover housing, thus preventing the door from closing completely. Therefore, when closing the protective cover door, the operator must press down on the cover with one hand while simultaneously pulling the outer end of the locking and releasing mechanism with the other hand to completely disengage the mechanism protruding from the protective cover housing. Only then can the protective cover door close smoothly and completely. This effectively avoids the potential risk of finger injury caused by the operator accidentally placing their other hand on the side or under the protective cover when closing the door.

[0013] Optionally, the lock-release component includes:

[0014] The spring pin sleeve has openings at both ends and internal cavities. One end is connected to one side of the protective cover and communicates with the pin hole.

[0015] The spring pin is slidably inserted into the spring pin sleeve;

[0016] A compression spring is located inside the cavity of the spring pin sleeve and is sleeved on the spring pin shaft;

[0017] A plunger, one end of which is connected to the end of the spring pin, slides through the pin hole, and has a diameter larger than the spring pin, and abuts against the compression spring;

[0018] The tensioning part is connected to the end of the spring pin away from the protective cover.

[0019] During the rotation and closing of the protective cover door, it will encounter a plunger inserted into the protective cover, thus restricting the complete closure of the door. At this point, the operator needs to pull the pulling part to further compress the compression spring, completely disengaging the plunger from the pin hole, thereby allowing the protective cover door to close smoothly. This design not only improves operational safety but also effectively prevents potential injuries caused by operator error when closing the protective cover door.

[0020] When the protective cover is opened, the plunger will automatically rebound and extend under the action of the compression spring, eliminating the need to manually reset the plunger after each opening of the protective cover, reducing the burden on operators and improving work efficiency and ease of operation.

[0021] Optionally, the pulling part is T-shaped. The T-shape allows the operator to easily pull with one hand, thereby overcoming the elastic force of the compression spring, allowing the plunger to completely disengage from the protective cover, and enabling the protective cover door to close smoothly.

[0022] Optionally, a spacer is provided at the end of the spring pin sleeve away from the protective cover, and the spring pin shaft passes through the spacer and is connected to the pulling part. The spacer ensures that the spring pin shaft can slide smoothly within the spring pin sleeve when subjected to external force. The presence of the spacer not only enhances the structural stability of the locking and releasing assembly, but also improves its operational smoothness and reliability.

[0023] Optionally, a protruding steel ball is provided at the end of the plunger.

[0024] During the opening of the protective cover, the protruding part of the steel ball will first contact the protective cover, thereby reducing the direct contact between the plunger end and the side wall of the protective cover and avoiding wear and noise.

[0025] Optionally, the spring pin sleeve is provided with a fixing seat, which is connected to the protective cover by bolts. This makes the locking and releasing assembly more securely installed on the protective cover, ensuring that the locking and releasing assembly will not loosen or shift during long-term use.

[0026] Optionally, the protective cover door is equipped with a handle, making it easier for operators to apply force when opening or closing the protective cover door.

[0027] Compared with existing technologies, the beneficial effects achieved by this application are as follows: During the rotational closing process, the protective cover door in this device will abut against the locking and releasing component extending into the protective cover shell, thus restricting the complete closure of the protective cover door. Therefore, during the operation of closing the protective cover door, the operator must press down to close the protective cover with one hand, while simultaneously pulling the outer end of the locking and releasing component with the other hand to completely disengage the component protruding from the protective cover shell. Only then can the protective cover door be closed smoothly and completely. This effectively avoids the potential risk of finger injury caused by the operator accidentally placing their other hand on the side or under the protective cover when closing the protective cover door.

[0028] First, the interlocking mechanism and the protective door effectively restrict complete closure by resisting each other during the rotational closing process. When closing the protective door, the operator must first pull the outer end of the locking mechanism to completely disengage the mechanism protruding from the protective housing before the door can be fully closed. This operation requires both hands to be used simultaneously. This effectively avoids the potential risk of finger injury caused by the operator accidentally placing their other hand on the side or under the protective housing when closing the door.

[0029] Secondly, the locking and releasing assembly of this device uses a compression spring to press against the plunger to control the extension and retraction of the plunger. When the protective cover is open, the compression spring uses its elastic force to automatically push the plunger out of the pin hole, returning it to the locked state. No additional operation or manual reset is required from the operator, reducing the operator's workload and improving work efficiency and ease of operation. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this disclosure 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 only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a side sectional view of the protective cover door in the open state provided in this application;

[0032] Figure 2 This is a side cross-sectional view of the protective cover door and the locking and releasing assembly in the state of contact provided in this application;

[0033] Figure 3 This is a side sectional view of the protective cover door in the closed state provided in this application;

[0034] Figure 4 This is a cross-sectional view of the lock-release component in the unstretched state provided in this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Protective cover; 2-Protective cover door; 3-Lock-release assembly; 4-Base plate; 11-Pin hole; 21-Handle; 31-Spring pin sleeve; 32-Spring pin shaft; 33-Compression spring; 34-Plunger; 35-Pull part; 36-Spacer sleeve; 37-Steel ball; 311-Fixing seat. Detailed Implementation

[0037] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure / application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0038] Example 1

[0039] This embodiment describes a protective cover safety device, referencing... Figures 1 to 3 The protective cover safety protection device in this embodiment includes: a protective cover shell 1 with an opening and a pin hole 11. The protective cover shell 1 is a shell structure with an opening for equipment maintenance, inspection, or operation. A protective cover door 2 fits into the opening of the protective cover shell 1 and is hinged to it. When the protective cover door 2 rotates to the closed position with the protective cover shell 1, the protective cover door 2 intersects the pin hole 11 axially upwards. Rotating the protective cover door 2 can open or close the opening of the protective cover shell 1. When the protective cover door 2 is closed, it can form a sealed space to protect the internal wire drawing and twisting equipment. In this embodiment, the protective cover door 2 is provided with a handle 21, making it easier for the operator to apply force when opening or closing the protective cover door 2. A locking and releasing component 3 is provided on the protective cover shell 1, with one end passing through the pin hole 11 and protruding inside the protective cover shell 1. Pulling the other end can completely release the locking and releasing component 3 from the inside of the protective cover shell 1, thereby releasing the restriction on the rotation range of the protective cover door 2.

[0040] In this embodiment, the protective door 2 will come into contact with the locking and releasing component 3 that extends into the protective housing 1 during the rotational closing process. This restricts the complete closure of the protective door 2. Therefore, during the operation of closing the protective door 2, the operator must press down to close the protective cover with one hand, while the other hand must simultaneously pull the outer end of the locking and releasing component 3, so that the locking and releasing component 3 protruding into the protective housing 1 is completely disengaged. Only then can the protective door 2 be closed smoothly and completely. This effectively avoids the potential risk of finger injury caused by the operator accidentally placing their other hand on the side or under the protective cover when closing the protective door 2.

[0041] Example 2:

[0042] Based on the same inventive concept as Embodiment 1, refer to Figure 1 and Figure 2 The protective cover safety device in this embodiment includes: a protective cover shell 1 with an opening and a pin hole 11 thereon; a protective cover door 2 that fits into the opening of the protective cover shell 1 and is hinged to the top of the protective cover shell 1; when the protective cover door 2 is rotated to the closed position with the protective cover shell 1, the protective cover door 2 and the pin hole 11 intersect axially upwards, and the opening of the protective cover shell 1 can be opened or closed by rotating the protective cover door 2. In this embodiment, the protective cover door 2 is provided with a handle 21. A base plate 4 is also included, and the protective cover shell 1 is disposed on the base plate 4.

[0043] Further, refer to Figures 3 to 4 The protective housing 1 is equipped with a locking and releasing assembly 3, one end of which passes through the pin hole 11 and protrudes inside the protective housing 1. By pulling the other end, the locking and releasing assembly 3 can be completely detached from the protective housing 1. In this embodiment, the locking and releasing assembly 3 includes a spring pin sleeve 31 with openings at both ends and cavities inside. The spring pin sleeve 31 is equipped with a fixing seat 311, which is connected to the protective housing 1 by bolts. This connection method makes the locking and releasing assembly 3 more securely installed on the protective housing 1, ensuring that the locking and releasing assembly 3 will not loosen or shift during long-term use. Furthermore, the spring pin sleeve 31 is connected to the pin hole 11. A spring pin shaft 32 slides through the spring pin sleeve 31. A compression spring 33 is sleeved on the spring pin shaft 32 inside the cavity of the spring pin sleeve 31. One end of the spring pin shaft 32 is connected to a plunger 34, which passes through the pin hole 11 and is larger than the spring pin shaft 32. One end of the compression spring 33 abuts against the plunger 34. Furthermore, the end of the spring pin 32 furthest from the protective cover 1 passes through the spring pin sleeve 31 and connects to the pulling part 35. In this embodiment, the pulling part 35 is T-shaped. This allows the operator to easily pull with one hand, thereby overcoming the elastic force of the compression spring 33, allowing the plunger 34 to completely disengage from the pin hole 11, and enabling the protective cover 2 to close smoothly. It is worth noting that the pulling part 35 in this embodiment is also rotatable. During the operation of closing the protective cover 2, the handle 21 of the protective cover 2 and the pulling part 35 are located on two adjacent sides. The operator needs to hold the handle 21 with one hand and pull down to close the protective cover 2, while using the other hand to pull the pulling part 35. The rotatability of the pulling part 35 provides the operator with greater range of force and flexibility. By rotating the pulling part 35, the operator can more easily find the most suitable angle and posture for themselves, thus completing the pulling action more easily.

[0044] Combination Figures 1 to 4As shown, in this embodiment, during the rotation and closing of the protective door 2, it will come into contact with the plunger 34 extending into the protective housing 1, thus restricting the complete closing of the protective door 2. At this time, the operator needs to pull the pulling part 35, and the compression spring 33 will be further compressed, so that the plunger 34 is completely disengaged from the interior of the protective housing 1, thereby allowing the protective door 2 to close smoothly. This design not only improves the safety of operation, but also effectively prevents potential injury caused by operator misoperation when closing the protective door 2.

[0045] When the protective door 2 is opened, the plunger 34 will automatically spring back and extend under the action of the compression spring 33. There is no need to manually reset the plunger after each opening of the protective door 2, which reduces the burden on the operator and improves work efficiency and ease of operation.

[0046] In this embodiment, a spacer 36 is provided at the end of the spring pin sleeve 31 away from the protective cover 1, and the spring pin shaft 32 passes through the spacer 36 and is connected to the pulling part 35. The spacer 36 ensures that the spring pin shaft 32 can slide smoothly in the spring pin sleeve 31 when it is pulled by an external force. The presence of the spacer 36 not only enhances the structural stability of the locking and releasing assembly 3, but also improves its smoothness and reliability of operation.

[0047] In this embodiment, the plunger 34 has a protruding steel ball 37 at its end. During the opening of the protective door 2, the protruding part of the steel ball 37 will first contact the protective door 2, thereby reducing the direct contact between the end of the plunger 34 and the side wall of the protective door 2, avoiding wear and noise, and making the protective door 2 open more smoothly.

[0048] In this embodiment, a spacer is provided at the end of the spring pin sleeve away from the protective cover, and the spring pin shaft passes through the spacer and is connected to the pulling part. The spacer ensures that the spring pin shaft can slide smoothly within the spring pin sleeve when subjected to external force. The presence of the spacer not only enhances the structural stability of the locking and releasing assembly, but also improves its smoothness and reliability of operation.

[0049] In this embodiment, the plunger end is provided with a protruding steel ball. During the opening of the protective cover, the protruding part of the steel ball will first contact the protective cover, thereby reducing the direct contact between the plunger end and the side wall of the protective cover, avoiding wear and noise, and making the protective cover open more smoothly.

[0050] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this disclosure / application, and these improvements and modifications should also be considered within the protection scope of this disclosure / application.

Claims

1. A protective cover safety protection device, characterized in that, include: The protective cover (1) has an opening and a pin hole (11) is provided on the protective cover. The protective door (2) fits into the opening of the protective shell (1) and is hinged to the protective shell (1). When the protective door (2) is rotated to the closed position with the protective shell (1), the protective door (2) intersects the pin hole (11) axially upward. The locking and releasing component (3) is disposed on the protective cover (1), with one end passing through the pin hole (11) and protruding from the inside of the protective cover (1). By pulling the other end, the locking and releasing component (3) can be completely removed from the inside of the protective cover (1).

2. The protective cover safety protection device according to claim 1, characterized in that, The lock-release component (3) includes: The spring pin sleeve (31) has a cavity inside that passes through the spring pin sleeve (31), one end of which is connected to one side of the protective cover (1) and communicates with the pin hole (11); The spring pin (32) slides through the cavity of the spring pin sleeve (31); A compression spring (33) is sleeved on the spring pin (32); The plunger (34) is connected at one end to the end of the spring pin (32), slides through the pin hole (11), and abuts against the compression spring (33); The pulling part (35) is connected to the end of the spring pin (32) away from the protective cover (1).

3. The protective cover safety protection device according to claim 2, characterized in that, The pulling part (35) is T-shaped.

4. The protective cover safety protection device according to claim 2, characterized in that, The spring pin sleeve (31) has a spacer (36) at the end away from the protective cover (1), and the spring pin shaft (32) passes through the spacer (36) and is connected to the pulling part (35).

5. The protective cover safety protection device according to claim 2, characterized in that, A protruding steel ball (37) is provided at the end of the plunger (34).

6. The protective cover safety protection device according to claim 2, characterized in that, The spring pin sleeve (31) is provided with a fixing seat (311), and the fixing seat (311) is connected to the protective cover (1) by bolts.

7. The protective cover safety protection device according to claim 1, characterized in that, It also includes a base plate (4), and the protective cover (1) is disposed on the base plate (4).

8. The protective cover safety protection device according to claim 1, characterized in that, The protective cover door (2) is equipped with a handle (21).

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