Connecting cable fixing device

Abstract

The utility model relates to the technical field of cable fixation, and discloses a connecting cable fixing device, which comprises an installation cylinder and an insertion rod, the insertion rod and the installation cylinder are respectively provided with a first through hole and a second through hole which are matched with each other, and a connecting cable is clamped and limited in the second through hole under the action of elastic force of an elastic piece, so that the limiting and fixing of the connecting cable are realized. After fixation is completed, the cable of the acceleration sensor does not displace, and cable integrity and reliable signal transmission are protected. Especially in a small-magnitude vibration test process, stretching and bending changes of the cable caused by movement of the connection cable of the acceleration sensor can be reduced or eliminated, so that the problem of noise interference caused by changes of capacitance and charges of the connection cable is avoided. Meanwhile, the problems that electromagnetic interference is generated due to the fact that an acceleration sensor cable makes contact with the vibration table body, and a connecting cable is abraded due to the fact that silver fixed to the vibration table body through an adhesive tape or a rubber band moves relatively can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable fixing technical field discloses a connecting cable fixing device. BACKGROUND

[0002] The existing acceleration sensor connecting cable fixing includes: adhesive tape, rubber band or suspension. The existing fixing mode is prone to fatigue or open circuit in the test process due to repeated vibration, which affects the acceleration sensor data acquisition, especially the movement of the acceleration sensor connecting cable, which causes the cable to stretch and bend, especially in small value vibration test, which causes the capacitance and charge of the connecting cable to change, and further generates noise interference.

[0003] Usually, the connecting cable is fixed by adhesive tape or rubber band in the laboratory to prevent its movement, because the adhesion is not firm, which will produce derived deviation, and because the adhesive layer and adhesive tape are prone to generate excess in the test site, or the adhesion with the measurement sensor will generate difficult-to-clean adhesive stains on the test piece, which seriously affects the accuracy and test time of the vibration test. UTILITY MODEL CONTENT

[0004] The utility model discloses a connecting cable fixing device, which can avoid the problem of fatigue or open circuit in the test process due to repeated vibration and disassembly of the acceleration sensor, and protect the integrity of the cable and the reliable signal transmission.

[0005] In order to realize the above technical effect, the utility model adopts the technical scheme that:

[0006] A connecting cable fixing device, comprising:

[0007] A positioning seat for fixing on a case or a fixing plate;

[0008] A mounting cylinder, one end of which is fixed on the positioning seat, the other end of which is provided with an opening, and a first through hole is formed in the side wall of the mounting cylinder, which can allow the connecting cable to pass through the mounting cylinder;

[0009] A plug rod, one end of which is inserted into the mounting cylinder from the opening position of the mounting cylinder, the other end of which is located outside the mounting cylinder, and a second through hole is formed in the side wall of the plug rod, which can allow the connecting cable to pass through the plug rod;

[0010] An elastic member, which is arranged in the mounting cylinder and located between the plug rod and the positioning seat.

[0011] Further, a limiting neck is arranged on the inner wall of the mounting cylinder, and the end of the plug rod arranged in the mounting cylinder is provided with a limiting protrusion matched with the limiting neck.

[0012] Further, the limiting neck is provided with a first notch for allowing the limiting convex block to slide out of the inner cavity of the mounting cylinder.

[0013] Further, the first perforation and the second perforation are provided with a second notch for allowing the connecting cable to be clamped into the second perforation.

[0014] Further, the positioning seat and the mounting cylinder are connected through threads.

[0015] Further, the positioning seat is provided with a negative pressure suction disc or a magnetic suction base.

[0016] Further, the number of the second perforations on the inserting rod is at least two, and the number of the first perforations on the positioning seat is at least two.

[0017] Further, the elastic member is a compressed spring.

[0018] Compared with the prior art, the fixing device has the beneficial effects that:

[0019] 1. The fixing device is used for fixing the acceleration sensor cable, and after installation, the acceleration sensor cable will not be displaced, so that the cable integrity and signal reliability transmission are protected.

[0020] 2. In the small value vibration test process, the fixing device can reduce or eliminate the movement of the acceleration sensor connecting cable to cause the cable to stretch and bend, thereby avoiding the problem of noise interference caused by the change of the capacitance and charge of the connecting cable. At the same time, it can also avoid the problems of electromagnetic interference caused by the contact between the acceleration sensor cable and the vibration table body, and the abrasion of the connecting cable caused by the relative movement of the vibration table body fixed by the adhesive tape or rubber band. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a perspective view of the connecting cable fixing device with a negative pressure suction disc in the embodiment;

[0022] Fig. 2 It is a structural schematic view of the connecting cable fixing device with a negative pressure suction disc in the embodiment;

[0023] Fig. 3 It is a structural schematic view of the connecting cable fixing device with a magnetic suction base in the embodiment;

[0024] 1, positioning seat; 2, mounting cylinder; 3, first perforation; 4, inserting rod; 5, second perforation; 6, elastic member; 7, limiting neck; 8, limiting convex block; 9, first notch; 10, second notch; 11, negative pressure suction disc; 12, magnetic suction base. DETAILED DESCRIPTION

[0025] The utility model will be described in further detail below in combination with the embodiments and drawings. However, this should not be understood as limiting the above-mentioned subject matter of the utility model to the following embodiments only, and any technology realized based on the content of the utility model falls within the scope of the utility model.

[0026] Embodiment

[0027] Reference Figs. 1-3 A connecting cable fixing device comprises:

[0028] A positioning seat 1 is used to be fixed on a cabinet or a fixing plate;

[0029] A mounting cylinder 2 is fixed at one end on the positioning seat 1, and the other end of the mounting cylinder 2 is provided with an opening, and a first through hole 3 is formed in the sidewall of the mounting cylinder 2, which can allow the connecting cable to pass through the mounting cylinder 2;

[0030] A plug rod 4 is inserted into the mounting cylinder 2 at one end from the opening position of the mounting cylinder 2, and the other end of the plug rod 4 is located outside the mounting cylinder 2, and a second through hole 5 is formed in the sidewall of the plug rod 4, which can allow the connecting cable to pass through the plug rod 4;

[0031] An elastic member 6 is arranged in the mounting cylinder 2, and the elastic member 6 is located between the plug rod 4 and the positioning seat 1.

[0032] In this embodiment, when the connecting cable such as an acceleration sensor cable needs to be fixed, the plug rod 4 is pressed into the inner cavity of the mounting cylinder 2 first, so that the second through hole 5 of the plug rod 4 and the first through hole 3 of the mounting cylinder 2 are coincided in position, and at this time the connecting cable can be arranged in the second through hole 5. After the plug rod 4 is released, the connecting cable is clamped and limited in the second through hole 5 under the elastic force of the elastic member 6, and by fixing the mounting seat at a proper position, the limiting and fixing of the connecting cable are realized. The connecting cable of the acceleration sensor is fixed by using the fixing device of this embodiment, and after the installation is completed, the acceleration sensor cable will not displace, protecting the integrity of the cable and the reliable transmission of the signal. Especially in the process of small value vibration test, the movement of the connecting cable of the acceleration sensor can be reduced or eliminated to make the cable produce stretching and bending changes, thereby avoiding the problem of noise interference caused by the change of the capacitance and charge of the connecting cable. At the same time, the problems of electromagnetic interference caused by the contact between the acceleration sensor cable and the table body of the vibration table, and the abrasion of the connecting cable caused by the relative movement of the acceleration sensor cable fixed on the table body of the vibration table by using adhesive tape or rubber band can also be avoided.

[0033] In the embodiment, the inner wall of the mounting cylinder 2 is provided with a limiting necking 7, and the end of the plug rod 4 located in the mounting cylinder 2 is provided with a limiting protrusion 8 matched with the limiting necking 7. Through the cooperation of the limiting necking 7 and the limiting protrusion 8, it can be ensured that one end of the plug rod 4 is always located in the mounting cylinder 2, thereby avoiding the problem that the plug rod 4 is easily pulled out of the mounting cylinder 2, and facilitating the installation and fixing of the connecting cable.

[0034] In the embodiment, the limiting necking 7 is provided with a first gap 9 through which the limiting protrusion 8 can slide out of the inner cavity of the mounting cylinder 2. On the basis of the cooperation of the limiting necking 7 and the limiting protrusion 8, by providing the first gap 9 on the limiting necking 7, not only can the end of the plug rod 4 be limited in the mounting cylinder 2, but also the limiting protrusion 8 can be slid out of the first gap 9 by rotating the plug rod 4, so that the installation and dismounting of the plug rod 4 and the mounting cylinder 2 can be easily realized when maintenance and replacement of the plug rod 4 or the mounting cylinder 2 is needed.

[0035] The first perforation 3 and the second perforation 5 are provided with a second gap 10 corresponding to the position of the second perforation 5, through which the connecting cable can be clamped into the second perforation 5. In the embodiment, the second gap 10 is provided on the side wall of the mounting cylinder 2 corresponding to the first perforation 3 and the position of the plug rod 4 corresponding to the second perforation 5. After the first perforation 3 and the second perforation 5 are coaxially aligned by pressing the plug rod 4, the connecting cable can be directly clamped into the second perforation 5 from the second gap 10, without the need to insert from the end of the connecting cable, so that the limiting and fixing of the connected connecting cable can be realized.

[0036] In the embodiment, the positioning seat 1 and the mounting cylinder 2 are connected through threads, so that the positioning seat 1 and the mounting cylinder 2 can be detachably connected, thereby facilitating targeted replacement of the positioning seat 1 or the mounting cylinder 2 after damage, without the need for overall scrapping, and saving use cost. It should be noted that other mechanisms that can realize detachable fixed connection of the positioning seat 1 and the mounting cylinder 2 are also applicable to the utility model.

[0037] In the embodiment, the positioning seat 1 is provided with a negative pressure suction cup 11 or a magnetic base 12, both of which can stably fix the positioning seat 1 on the case or the fixing plate, and facilitate position adjustment and fixing of the positioning seat 1.

[0038] In the embodiment, the number of the second perforations 5 on the plug rod 4 is at least two, and the number of the first perforations 3 on the positioning seat 1 is at least two, so that the limiting and fixing of multiple connecting cables can be realized.

[0039] In the embodiment, the elastic member 6 is a spring under pressure, and other structures that can apply elastic force to the plug rod 4 can also be used as the elastic member 6 of the utility model.

[0040] In summary, the fixing device of the embodiment has simple structure, light weight, high strength, and is convenient to install and disassemble, and can avoid the problem that the acceleration sensor is affected in data acquisition due to fatigue or open circuit caused by repeated vibration and disassembly in the test process. Compared with the traditional cable fixing mode, the disassembly and cleaning time can be greatly reduced, thereby greatly improving the test efficiency; at the same time, the influence of other factors on the test can be reduced, the test accuracy and vibration test reliability are greatly improved, and the product quality and delivery test progress are ensured.

[0041] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A connection cable fixing device, characterized by, The utility model relates to a kind of cable fixing device, including: Positioning seat (1), the positioning seat (1) is used to be fixed on cabinet or fixed plate; Mounting cylinder (2), one end of the mounting cylinder (2) is fixed on positioning seat (1), the other end of the mounting cylinder (2) is provided with opening, first perforation (3) for being passed through the mounting cylinder (2) by cable connection is opened on the lateral wall of the mounting cylinder (2); Inserting rod (4), one end of the inserting rod (4) is inserted into the mounting cylinder (2) from the opening position of the mounting cylinder (2), the other end of the inserting rod (4) is located outside the mounting cylinder (2), second perforation (5) for being passed through the inserting rod (4) by cable connection is opened on the lateral wall of the inserting rod (4); Elastic member (6), the elastic member (6) is arranged in the mounting cylinder (2), and the elastic member (6) is located between inserting rod (4) and positioning seat (1).

2. The connection cable fixing device according to claim 1, characterized in that, The inner wall of the mounting cylinder (2) is provided with a limiting neck (7), and the end of the inserting rod (4) located in the mounting cylinder (2) is provided with a limiting bump (8) matched with the limiting neck (7).

3. The connection cable securing apparatus of claim 2, wherein The limiting neck (7) is provided with a first gap (9) for the limiting bump (8) to slide out of the inner cavity of the mounting cylinder (2).

4. The connection cable securing apparatus of claim 1, wherein The first perforation (3) and the second perforation (5) are provided with a second gap (10) for the cable to be clamped into the second perforation (5) at corresponding positions.

5. The connection cable securing apparatus of claim 1, wherein The positioning seat (1) and the mounting cylinder (2) are connected by threads.

6. The connection cable securing apparatus of claim 1, wherein The positioning seat (1) is provided with a negative pressure suction disc (11) or a magnetic base (12).

7. The connection cable securing apparatus of claim 1, wherein The number of second perforations (5) on the inserting rod (4) is at least two, and the number of first perforations (3) on the positioning seat (1) is at least two.

8. The connection cable securing apparatus of claim 1, wherein The elastic member (6) is a compressed spring.

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