High-sensitivity coil spring for alarm

Abstract

The high-sensitivity coil spring comprises a coil spring body, a first connector and a second connector are arranged at the two ends of the coil spring body respectively, the high-sensitivity coil spring further comprises sliding structures and a connecting structure, the sliding structures are arranged at the top end and the bottom end of the coil spring body, and the connecting structure is arranged at the top end and the bottom end of the coil spring body. The sliding structure is used for reducing the sliding contact area of the coil spring body and the alarm shell. The connecting structure is arranged at the second connector and comprises a connecting sleeve and a driving sleeve, the driving sleeve is connected into the connecting sleeve in a penetrating mode, the connecting sleeve is used for being connected with the second connector, and the driving sleeve is used for being connected with an external traction component. According to the utility model, the sliding structures are arranged at the top end and the bottom end of the coil spring main body, so that the contact area between the coil spring main body and the inner wall of the alarm shell is reduced, and therefore, when the coil spring main body is subjected to winding and unwinding operation, the sliding friction force is reduced, and winding and unwinding are quicker; therefore, the alarm is more sensitive to use.

Description

Technical Field

[0001] The utility model relates to the field of coil springs, and particularly relates to a highly sensitive coil spring for an alarm Background Technique

[0002] Coil springs are commonly used in some types of alarms, especially in door magnetic alarms for anti-theft alarm systems. The coil spring serves as a triggering element in these alarms to help detect the opening and closing states of doors and windows. Generally, the coil spring is used in conjunction with a magnet. When the door or window is opened, the compression or extension of the coil spring triggers the alarm to sound

[0003] The existing basic structure of the coil spring is composed of a curled and wound metal sheet. The two ends of the metal sheet are respectively set as bent structures for connecting the entire coil spring structure to external devices. However, in the process of curling and stretching the coil spring, the surface of the coil spring body comes into full contact with the inner wall of the alarm housing. During the unwinding and rewinding operations, the surface of the coil spring body will rub against the inner wall of the alarm housing. This operation reduces the sensitivity of the coil spring during stretching and contraction. Moreover, if the connection of the end of the coil spring body is unstable, it is not easy to conduct the unwinding and rewinding forces during the curling operation, resulting in insensitive alarm activation Content of the Utility Model

[0004] The purpose of the utility model is to provide a highly sensitive coil spring for an alarm to solve the problems raised in the above background technique

[0005] To achieve the above purpose, the utility model provides the following technical solution: A highly sensitive coil spring for an alarm, including a coil spring body, with a first connection head and a second connection head respectively arranged at both ends of the coil spring body, and further including:

[0006] A sliding structure, which is arranged at the top and bottom of the coil spring body, and is used to reduce the sliding contact area between the coil spring body and the alarm housing

[0007] A connection structure, which is arranged at the second connection head. The connection structure includes a connection sleeve and a driving sleeve. The driving sleeve is inserted and connected into the connection sleeve. The connection sleeve is used to connect the second connection head, and the driving sleeve is used to insert and connect an external traction component

[0008] Preferably, the first connection head is set in a hook shape, and a plurality of first connection holes are opened at the hook end of the first connection head

[0009] Preferably, the sliding structure is set as an arc-shaped convex block, and a plurality of the arc-shaped convex blocks are arranged in a surrounding manner at the top and bottom of the coil spring body

[0010] Preferably, the second connector is arranged in a curled shape, and a second connection hole is formed at the curled end of the second connector. The second connection hole is used for the connecting sleeve to implement an insertion connection.

[0011] Preferably, an arc-shaped connecting plate is arranged on the outer wall of the connecting sleeve, and a plurality of connecting insertion posts are arranged on the side of the arc-shaped connecting plate away from the connecting sleeve. The plurality of connecting insertion posts are respectively inserted and connected into a plurality of second connection holes.

[0012] Preferably, a connection through groove is formed in the middle of the connecting sleeve, and the connection through groove is used for connecting the driving sleeve.

[0013] Preferably, the driving sleeve is slidably inserted into the connection through groove, and a rectangular driving groove is formed in the middle of the driving sleeve.

[0014] Preferably, limiting sliding grooves are symmetrically arranged along the center on the inner wall of the connection through groove, and limiting sliding strips are symmetrically arranged along the center on the outer wall of the driving sleeve. The plurality of limiting sliding strips are respectively slidably inserted into the plurality of limiting sliding grooves.

[0015] The technical effects and advantages of the present utility model:

[0016] (1) Firstly, by setting the sliding structure at the top and bottom of the main body of the coil spring, the contact area between the main body of the coil spring and the inner wall of the alarm housing is reduced, so that when the main body of the coil spring performs the winding and unwinding operations, the sliding friction is reduced, thereby making the winding and unwinding faster, and further making the alarm more sensitive to use.

[0017] (2) A connection structure is arranged at the second connector of the present utility model. This connection structure is connected to the second connector and the external traction component respectively through the combination of the connecting sleeve and the driving sleeve. Through such a structural setting, when the main body of the coil spring is in use, it no longer solely relies on the external structure to add a hook structure to hook the second connector. Through the design of this scheme type, the entire coil spring connection is more reliable and stable in use, and further ensures that the alarm is more sensitive to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the whole of the present utility model.

[0019] Figure 2 It is a top view of the whole of the present utility model.

[0020] Figure 3 It is a connection schematic diagram of the main body of the coil spring, the first connector and the second connector of the present utility model.

[0021] Figure 4 It is a schematic structural diagram of the connection structure of the present utility model.

[0022] Figure 5 This is a schematic structural diagram of the connecting sleeve of the present utility model.

[0023] Figure 6 This is a schematic structural diagram of the driving sleeve of the present utility model.

[0024] In the figure: 1. Volute spring body; 2. First connection head; 201. First connection hole; 3. Second connection head; 301. Second connection hole; 4. Arc-shaped convex block; 5. Connecting sleeve; 501. Arc-shaped connecting plate; 502. Connecting plug post; 503. Connecting through groove; 504. Limiting sliding groove; 6. Driving sleeve; 601. Limiting sliding strip; 602. Rectangular driving groove. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides a highly sensitive volute spring for an alarm as Figure 1-6 shown, including a volute spring body 1. The two ends of the volute spring body 1 are respectively provided with a first connection head 2 and a second connection head 3. The first connection head 2 is set in a hook shape, and a plurality of first connection holes 201 are opened at the hook end of the first connection head 2.

[0027] It should be noted that through the hook-shaped setting of the first connection head 2, the first connection head 2 can hook the housing of the structure to be connected. At the same time, through the opening of the first connection holes 201, the connected housing structure can be provided with connection post structures to complete the matching and insertion with the first connection holes 201. Through such a setting, the first connection head 2 can implement the connection more effectively and stably.

[0028] It further includes:

[0029] A sliding structure, which is arranged at the top and bottom of the volute spring body 1 and is used to reduce the sliding contact area between the volute spring body 1 and the alarm housing;

[0030] Specifically, the sliding structure is set as arc-shaped convex blocks 4, and a plurality of arc-shaped convex blocks 4 are arranged in a surrounding manner at the top and bottom of the volute spring body 1.

[0031] It should be noted that through the setting of the arc-shaped bump 4, the contact areas between the top and bottom ends of the coiled spring body 1 and the alarm housing are smaller. In this way, when pulling the traction coiled spring body 1 for winding and unwinding operations, due to the reduction of the sliding contact area between the coiled spring body 1 and the alarm housing, the sliding friction force is reduced. Furthermore, the winding and unwinding operations of the coiled spring body 1 become faster and more sensitive, thereby making the coiled spring body 1 more sensitive to use.

[0032] The connecting structure is arranged at the second connecting head 3. The connecting structure includes a connecting sleeve 5 and a driving sleeve 6. The driving sleeve 6 is inserted and connected inside the connecting sleeve 5. The connecting sleeve 5 is used to connect the second connecting head 3, and the driving sleeve 6 is used to insert and connect an external traction component.

[0033] Specifically, the second connecting head 3 is set in a curled shape. A second connecting hole 301 is opened at the curled end of the second connecting head 3, and the second connecting hole 301 is used for the connecting sleeve 5 to perform insertion connection.

[0034] It should be noted that the structural setting form of the second connecting head 3 is the same as that of the first connecting head 2 in function. At the same time, by opening the second connecting hole 301, the connection of the second connecting head 3 is further enhanced, so that the entire coiled spring body 1 is connected more stably.

[0035] Furthermore, an arc-shaped connecting plate 501 is arranged on the outer wall of the connecting sleeve 5. A plurality of connecting studs 502 are arranged on the side of the arc-shaped connecting plate 501 away from the connecting sleeve 5, and the plurality of connecting studs 502 are respectively inserted and connected into a plurality of second connecting holes 301.

[0036] It should be noted that the diameter of the connecting stud 502 is the same as the opening diameter of the second connecting hole 301. Through such a structural combination design, by using the insertion connection between the connecting stud 502 and the second connecting hole 301, the arc-shaped connecting plate 501 can be effectively connected to the second connecting head 3, and then the connecting sleeve 5 is connected to the second connecting head 3.

[0037] Furthermore, a connecting through groove 503 is opened in the middle of the connecting sleeve 5. The connecting through groove 503 is used to connect the driving sleeve 6. The driving sleeve 6 is slidably inserted and connected inside the connecting through groove 503, and a rectangular driving groove 602 is opened in the middle of the driving sleeve 6.

[0038] It should be noted that the opened rectangular driving groove 602 makes the connecting driving structure also correspondingly set in a rectangular shape. Through the insertion and cooperation of the rectangular structure, when rotating and using, the rotation driving operation can be made more stable by using the abutting cooperation of the rectangular side walls.

[0039] Furthermore, limiting chutes 504 are symmetrically formed along the center on the inner wall of the connecting through groove 503, and limiting sliding strips 601 are symmetrically arranged along the center on the outer wall of the driving sleeve 6. A plurality of limiting sliding strips 601 are respectively slidably inserted and connected into a plurality of limiting chutes 504.

[0040] It should be noted that both the limiting chutes 504 and the limiting sliding strips 601 are rectangular structures. Through the setting of the rectangular structures, the driving sleeve 6 and the connecting sleeve 5 can be stably connected, and stable transmission between the structures can be achieved through such a structure, so as to complete the winding and unwinding drive of the main body 1 of the coil spring.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highly sensitive coil spring for an alarm, comprising a coil spring body (1), wherein two ends of the coil spring body (1) are respectively provided with a first connector (2) and a second connector (3), wherein: Also includes: A sliding structure, the sliding structure being arranged at the top and bottom ends of the coil spring body (1), the sliding structure being used to reduce the sliding contact area between the coil spring body (1) and the alarm housing; A connection structure is provided at the second connection head (3), the connection structure comprises a connection sleeve (5) and a drive sleeve (6), the drive sleeve (6) is inserted and connected in the connection sleeve (5), the connection sleeve (5) is used to connect the second connection head (3), and the drive sleeve (6) is used to insert and connect an external traction component.

2. A highly sensitive coil spring for an alarm according to claim 1, characterized in that: The first connecting head (2) is configured in a hook shape, and a plurality of first connecting holes (201) are provided at the hook end of the first connecting head (2).

3. A highly sensitive coil spring for an alarm according to claim 1, characterized in that: The sliding structure is configured as an arc-shaped protrusion (4), and a plurality of the arc-shaped protrusions (4) are arranged in a surrounding manner at the top and bottom ends of the coil spring body (1).

4. A highly sensitive coil spring for an alarm according to claim 1, characterized in that: The second connection head (3) is arranged in a curled shape, and a second connection hole (301) is provided at the curled end of the second connection head (3), and the second connection hole (301) is used for the connection sleeve (5) to implement an insertion connection.

5. A highly sensitive coil spring for an alarm according to claim 4, characterized in that: The outer wall of the connecting sleeve (5) is provided with an arc-shaped connecting plate (501), and a plurality of connecting plugs (502) are provided on a side of the arc-shaped connecting plate (501) away from the connecting sleeve (5), and the plurality of connecting plugs (502) are respectively inserted and connected in the plurality of second connecting holes (301).

6. A highly sensitive coil spring for an alarm according to claim 5, characterized in that: A connecting through groove (503) is provided in the middle of the connecting sleeve (5), and the connecting through groove (503) is used for connecting to the driving sleeve (6).

7. A highly sensitive coil spring for an alarm according to claim 6, characterized in that: The driving sleeve (6) is slidably inserted and connected in the connecting groove (503), and a rectangular driving groove (602) is opened in the middle of the driving sleeve (6).

8. A highly sensitive coil spring for an alarm according to claim 7, characterized in that: The inner wall of the connecting groove (503) is provided with a limiting slide groove (504) symmetrically along the center, and the outer wall of the driving sleeve (6) is provided with a limiting slide bar (601) symmetrically along the center, and the plurality of limiting slide bars (601) are respectively slidably inserted and connected in the plurality of limiting slide grooves (504).

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