Civil air defense door hand wheel locking control force detection auxiliary device

Abstract

The utility model discloses a civil air defense door hand wheel locking control force detection auxiliary device, which comprises a bolt, an opening-shaped arc movable sleeve, a telescopic support rod, an anti-skid support ring and a corner joint type nut rod, a fastening part is arranged at the opening of the arc movable sleeve, a locking part is fixed through the bolt, and the telescopic support rod is connected with the anti-skid support ring. One end, in the length direction, of the telescopic supporting rod is installed on the outer surface of the arc movable sleeve through a hinged movable support, the other end, in the length direction, of the telescopic supporting rod is connected with the anti-skid supporting ring through a hinged movable support, and one end, in the length direction, of the corner joint type nut rod is installed on the outer surface of the arc movable sleeve. And the other end of the angle joint type nut rod in the length direction is connected with the pull and push dynamometer. According to the utility model, the circular arc movable sleeve is sleeved on the circular tube of the hand wheel and is fastened and locked by the bolt, then the anti-slip support ring is buckled on the middle support rod of the hand wheel, and finally, the push-pull dynamometer is held by hand to measure data through the bolt angle joint type nut rod, so that the device can accurately ensure that the force is in the tangential direction of the hand wheel; the device is simple in structure, easy to manufacture, low in cost and convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the field of civil defense engineering testing technology, specifically relating to an auxiliary device for testing the locking force of a civil defense door handwheel. Background Technology

[0002] Civil air defense projects are essential national infrastructure projects, crucial for protecting people and resources during wartime from sudden enemy attacks, effectively sheltering personnel and supplies, and preserving wartime potential. Protective equipment is a vital component of civil air defense projects, and its quality directly impacts the overall protective function of the project. Therefore, rigorous quality control of civil air defense door installation is of paramount importance.

[0003] According to the relevant provisions of the "Standard for Testing and Quality Inspection of Protective Equipment for Civil Air Defense Engineering" (RFJ 04-2009), the installation quality inspection of civil defense doors includes the testing of the locking force of the door, and the testing equipment is a spring scale (push-pull force gauge). There are two main types of locking mechanisms for civil defense doors: slant-bar locking and handwheel locking. Slant-bar locking is generally used for single-leaf doors, while handwheel locking is generally used for double-leaf doors. When testing the locking force of a civil defense door, the direction of the pulling force must always be perpendicular to the locking handle or tangential to the movement trajectory of the handwheel, and parallel to the door surface. However, because the hook of the spring scale (push-pull force gauge) is relatively small, it cannot be completely fixed on the slant bar or disc and will slide as the slant bar or handwheel rotates, resulting in low accuracy of the test results.

[0004] Therefore, there is an urgent need to propose an auxiliary device for detecting the locking force of the handwheel of a civil defense door that provides accurate detection. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for detecting the locking force of the handwheel on a civil defense door.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model provides an auxiliary device for detecting the locking force of a handwheel on a civil defense door, including a bolt, an open-shaped arc-shaped movable sleeve, a telescopic support rod, an anti-slip support ring, and a corner-joint type nut rod. The opening of the arc-shaped movable sleeve is provided with a fastening part, and the locking part is fixed by a bolt. One end of the telescopic support rod along its length is installed on the outer surface of the arc-shaped movable sleeve through a hinged movable support, and the other end of the telescopic support rod along its length is connected to the anti-slip support ring through a hinged movable support. One end of the corner-joint type nut rod along its length is installed on the outer surface of the arc-shaped movable sleeve, and the other end of the corner-joint type nut rod along its length is connected to a push-pull force gauge.

[0008] Preferably, the arc-shaped movable sleeve is made of elastic steel material.

[0009] Preferably, the inner surface of the arc-shaped movable sleeve is provided with an anti-slip rubber pad.

[0010] Preferably, the anti-slip support ring has a semi-circular structure.

[0011] Preferably, the inner surface of the anti-slip support ring is provided with a rubber layer or a silicone layer.

[0012] Preferably, the locking part is a locking connecting steel plate, and the locking connecting steel plate is provided with an elongated connecting hole.

[0013] Preferably, the bolt angle-fit nut rod and the fastening part are symmetrically arranged at the center of the relative arc movable sleeve.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This invention utilizes a circular arc movable sleeve fitted onto the circular tube of the handwheel and secured with bolts. Then, an anti-slip support ring is fastened to the middle support rod of the handwheel. Finally, a hand-held push-pull force gauge is used to measure the data through the bolt angle-joint type nut rod. This device can accurately ensure that the force is in the tangential direction of the handwheel, so as to obtain more accurate test data. It has a simple structure, is easy to manufacture, has low cost, and is convenient to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an auxiliary device for detecting the locking force of a handwheel on a civil defense door according to this utility model;

[0017] Figure 2 This is a schematic diagram of the operation structure of an auxiliary device for detecting the locking force of a handwheel on a civil defense door, according to this utility model.

[0018] Figure 3 This is a utility model Figure 2 Side view of the handwheel of the middle civil defense door. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] In the description of this utility model, it should be understood that the terms "left," "right," etc., indicating the orientation or positional relationship are based on the accompanying drawings. Figure 1The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0021] 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0022] like Figures 1 to 3 As shown, this embodiment provides an auxiliary device for detecting the locking force of a handwheel on a civil defense door, including a bolt 1, an open-shaped arc-shaped movable sleeve 2, a telescopic support rod 4, an anti-slip support ring 8, and a corner-joint type nut rod 6. The opening of the arc-shaped movable sleeve 2 is provided with a fastening part, which is fixed by the bolt 1. The arc-shaped movable sleeve 2 is made of elastic steel material and can fit snugly onto the round tube of the handwheel, and then be tightened and locked by the bolt. According to actual needs, an anti-slip rubber pad 7 is provided on the inner surface of the arc-shaped movable sleeve 2 to further ensure that the arc-shaped movable sleeve and the round tube of the handwheel will not slip.

[0023] One end of the telescopic support rod 4 is mounted on the outer surface of the arc-shaped movable sleeve 2 via a hinged movable support 3. The other end of the telescopic support rod 4 is connected to the anti-slip support ring 8 via the hinged movable support 3. The anti-slip support ring 8 has a semi-circular structure. The inner surface of the anti-slip support ring 8 is provided with a rubber layer or a silicone layer. The length of the telescopic support rod is adjustable according to the distance between the handwheel's circular tube and the intermediate support rod. The anti-slip support ring secures the rod to the intermediate support rod, preventing slippage and ensuring detection accuracy during testing.

[0024] One end of the angle-joint type nut rod 6 is mounted on the outer surface of the arc-shaped movable sleeve 2, and the other end is connected to the push-pull force gauge. The angle-joint type nut rod 6 and the fastening part of the bolt 1 are symmetrically arranged relative to the center of the arc-shaped movable sleeve 2. The angle-joint type nut rod is directly connected to the push-pull force gauge to ensure that the force is in the tangential direction of the handwheel during detection, thereby ensuring the accuracy of the detection.

[0025] The working principle of this embodiment will be further explained below:

[0026] In this embodiment, in accordance with the relevant requirements of the "Standard for Testing and Quality Inspection of Protective Equipment for Civil Air Defense Engineering" (RFJ 04-2009), the installation quality inspection of the steel structure civil defense door includes the testing of the locking force of the handwheel. The testing equipment is a spring scale (push-pull force gauge). First, using the steel structure handwheel, a circular arc movable sleeve is fitted onto the circular tube of the handwheel and tightened with bolts to lock the circular arc sleeve in place and prevent slippage. Then, the telescopic support rod is adjusted according to the size of the handwheel so that the anti-slip support ring is fastened to the middle support rod of the handwheel. The angle-joint type nut rod is tightened to the screw of the push-pull force gauge. The hand-held force gauge is used to pull the handwheel to rotate and measure accurate data. The right-angle bend of the nut rod is such that the force of the nut rod is in the tangential direction of the handwheel. Example 2

[0027] In this preferred embodiment, the rest is the same as in Embodiment 1, except that the locking part in this embodiment is a locking connecting steel plate, and the locking connecting steel plate is provided with an elongated connecting hole. The elongated connecting hole allows for adjustment according to the size of the handwheel's round tube, making it more convenient.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary device for detecting the operating force of a handwheel lock on a civil defense door, characterized in that, The device includes a bolt (1), an open-shaped arc-shaped movable sleeve (2), a telescopic support rod (4), an anti-slip support ring (8), and a corner-joint nut rod (6). The arc-shaped movable sleeve (2) has a fastening part at its opening, and the locking part is fixed by the bolt (1). One end of the telescopic support rod (4) in the length direction is installed on the outer surface of the arc-shaped movable sleeve (2) through a hinged movable support (3). The other end of the telescopic support rod (4) in the length direction is connected to the anti-slip support ring (8) through the hinged movable support (3). One end of the corner-joint nut rod (6) in the length direction is installed on the outer surface of the arc-shaped movable sleeve (2), and the other end of the corner-joint nut rod (6) in the length direction is connected to a push-pull force gauge.

2. The auxiliary device for detecting the locking force of the handwheel of a civil defense door according to claim 1, characterized in that, The circular arc movable sleeve (2) is made of elastic steel material.

3. The auxiliary device for detecting the locking force of the handwheel of a civil defense door according to claim 1, characterized in that, The inner surface of the circular arc movable sleeve (2) is provided with an anti-slip rubber pad (7).

4. The auxiliary device for detecting the locking force of the handwheel of a civil defense door according to claim 1, characterized in that, The anti-slip support ring (8) has a semi-circular structure.

5. The auxiliary device for detecting the locking force of the handwheel of a civil defense door according to claim 4, characterized in that, The inner surface of the anti-slip support ring (8) is provided with a rubber layer or a silicone layer.

6. The auxiliary device for detecting the locking force of the handwheel of a civil defense door according to claim 1, characterized in that, The locking part is a locking connecting steel plate, and the locking connecting steel plate is provided with an elongated connecting hole.

7. The auxiliary device for detecting the locking force of the handwheel of a civil defense door according to claim 1, characterized in that, The bolt (1) angle-joint type nut rod (6) and the fastening part are centrally symmetrically arranged with respect to the arc-shaped movable sleeve (2).

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