Adjustable penetrating clamp

Abstract

The utility model relates to the technical field of penetrating clamps, in particular to an adjustable penetrating clamp which comprises a sliding rod body and a clamp body, the clamp body comprises a fixed clamp body and a movable clamp body which are arranged on the sliding rod body, the fixed clamp body is fixedly connected with the sliding rod body, and the movable clamp body is connected with the sliding rod body in a sliding mode. A connecting seat is arranged on the sliding rod body, the connecting seat is connected with the movable clamp body through bimetallic strips with different thermal expansion coefficients, and the bimetallic strips are bent and stretched according to the temperature change to drive the movable clamp body to move in the direction away from or close to the fixed clamp body. The double metal sheets are bent and stretched, the distance between the two clamp bodies is adjusted to adapt to shrinkage of the wire, so that when the wire expands with heat and contracts with cold due to the change of environment temperature, the distance is adjusted in time to keep proper tension of the wire, and the wire is prevented from being too tight or too loose due to the change of temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of penetration clamps, in particular to an adjustable penetration clamp. Background Art

[0002] Penetration clamps are widely used to fix wire harnesses to prevent them from loosening or shifting during vibration or movement, thereby ensuring the stability of electrical connections. They can also help organize and manage wire harnesses, making them neat and orderly for easy maintenance and inspection, while also helping to optimize space utilization to ensure safe, stable and efficient operation of the system.

[0003] In some cases where the requirements for wire harness fixation are high or the environment in which the wire harness is located is more complex, two penetration clamps may be needed to fix a certain section of the wire harness at the same time. For example, when the wire harness needs to withstand large tension, pressure or vibration, two penetration clamps are needed to provide a more stable fixation effect to prevent the wire harness from being displaced or damaged under these external forces. However, although the stability of fixing the wire harness separately with two penetration clamps is good, it is affected by the temperature. For example, in summer and winter, the influence of thermal expansion and contraction is greater, which will cause the tension of the wire harness to change. If the spacing between the two penetration clamps is fixed, when the wire stretches due to rising temperature, it will be over-stretched, resulting in excessive tension, which may damage the internal structure of the wire, affect its conductive performance or even cause breakage. Conversely, when the wire shortens due to lowering temperature, it will become too loose and may be displaced under vibration or external force, affecting its normal operation and even falling off from the penetration clamp.

[0004] Based on the above situation, it is necessary to design an adjustable penetration clamp to solve the above problems. Utility Model Content

[0005] The utility model provides an adjustable penetration clamp, which solves the problem in the prior art that the penetration clamp cannot adapt to the thermal expansion and contraction of the wire to adjust the tension.

[0006] The technical problem solved by the present invention is achieved by the following technical solutions:

[0007] An adjustable penetration clamp includes a sliding rod and a clamp body, the clamp body includes a fixed clamp body and a movable clamp body arranged on the sliding rod body, the fixed clamp body is fixedly connected to the sliding rod body, and the movable clamp body is slidably connected to the sliding rod body, and a connecting seat is provided on the sliding rod body. The connecting seat and the movable clamp body are connected by a bimetallic strip with different thermal expansion coefficients, and the bimetallic strip is flexed and extended according to temperature changes to drive the movable clamp body to move away from or close to the fixed clamp body.

[0008] Preferably, the connecting seat is slidably sleeved on the sliding rod body, and a locking screw is threadedly connected to the connecting seat. When the locking screw conflicts with the sliding rod body, the connecting seat is fixed on the sliding rod body.

[0009] Preferably, the fixed clamp body and the movable clamp body are both provided with a wire guide groove for the wire harness to pass through, and the fixed clamp body and the movable clamp body are both connected to an abutment for clamping the wire harness in the wire guide groove by sliding up and down, and the fixed clamp body and the movable clamp body are both threadedly connected to a fixing screw whose end is rotatably connected to the abutment.

[0010] Preferably, protective sleeves are provided at the openings at both ends of the guide groove, and the protective sleeves are folded outwards to connect with the side walls of the fixed clamping body and the movable clamping body.

[0011] Preferably, the cross-sectional width of the lead groove gradually decreases from top to bottom.

[0012] Preferably, a ball is provided in the through hole where the movable clamping body contacts the sliding rod body.

[0013] The beneficial effects of the present invention are as follows: the bimetallic strip is made to bend and stretch according to the change of temperature; when the bimetallic strip is bent by heat, the movable clamp is pulled to move away from the fixed clamp, thereby increasing the spacing between the two penetrating clamps and adapting to the elongation of the wire; on the contrary, when the temperature is low, the bimetallic strip returns to its original shape, pushing the movable clamp toward the fixed clamp, thereby decreasing the spacing between the two penetrating clamps and adapting to the contraction of the wire; when the wire expands and contracts due to thermal expansion and contraction caused by changes in ambient temperature, the spacing is adjusted in time to maintain the appropriate tension of the wire, thereby avoiding the wire being too tight or too loose due to temperature changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation scheme of the present invention or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model:

[0016] Figure 2 This is a schematic diagram of the mobile clamp structure of the utility model:

[0017] Figure 3 This is a schematic diagram of the structure when the resistance member and the movable clamp are separated in the present invention:

[0018] Figure 4It is a structural schematic diagram of the fixed clamping body and the movable clamping body in the present invention when clamping the wire harness.

[0019] In the figure, 1. sliding rod body; 2. fixed clamp body; 3. movable clamp body; 4. connecting seat; 41. locking screw; 5. bimetallic strip; 6. lead groove; 61. interference piece; 62. fixed screw; 63. raised interference part; 64. groove; 7. protective cover; 8. ball bearing. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0021] Reference Figure 1-Figure 4 As shown, an adjustable penetration clamp includes a sliding rod body 1 in a straight state. The length of the sliding rod body 1 is not limited and can be set according to the installation and use requirements. When in use, the sliding rod body 1 can be fixed near the position where the wire needs to be positioned by bolts or welding. A fixed clamp body 2 and a movable clamp body 3 are provided on the sliding rod body 1. The fixed clamp body 2 is fixedly connected to the sliding rod body 1, and the movable clamp body 3 is slidably connected to the sliding rod body 1. By adjusting the position of the movable clamp body 3, the distance between the movable clamp body 3 and the fixed clamp body 2 is adjusted, thereby achieving the tightness adjustment of the clamped wire. In order to adapt to the influence of thermal expansion and contraction caused by high or low outdoor temperatures in summer or winter, A connecting seat 4 is also provided on the sliding rod body 1, and the connecting seat 4 is connected to the movable clamping body 3 by a bimetallic strip 5. The bimetallic strip 5 is made of materials with different thermal expansion coefficients, such as brass and steel. The thermal expansion coefficient of brass is greater than that of steel. When the temperature is high, the brass sheet expands more than the steel sheet. At this time, the bimetallic strip 5 will bend toward the side of the steel sheet, thereby pulling the movable clamping body 3 away from the fixed clamping body 2, stretching the thermally expanded wire harness, and conversely pushing the movable clamping body 3 toward the fixed clamping body 2 to adapt to the cold shrinkage when the temperature is low. The tension of the artisan can be adjusted in time to avoid damage to the clamped and fixed wire due to temperature changes due to excessive tightness or looseness.

[0022] Further, refer to Figure 1As shown, if the guides of different lengths are replaced, the spacing between the original clamps is no longer appropriate, which may cause the wires to be overly tight or loose and affect normal use. When it is necessary to adjust the spacing between the fixed clamp 2 and the movable clamp 3, a locking screw 41 is threadedly connected to the connecting seat 4, and the connecting seat 4 is slidably sleeved on the sliding rod body 1. By adjusting the position of the connecting seat 4 on the sliding rod body 1, the movable clamp 3 is driven to move through the bimetallic strip 5. After adjusting the spacing between the movable clamp 3 and the fixed clamp 2, when the locking screw 41 is rotated to press against the sliding rod body 1, the connecting seat 4 is fixed to the sliding rod body 1 to manually adjust the spacing between the movable clamp 3 and the fixed clamp 2.

[0023] Among them, reference Figure 3 As shown, the fixed clamp body 2 and the movable clamp body 3 are both provided with a guide groove 6 for the wire harness to pass through, and the fixed clamp body 2 and the movable clamp body 3 are both connected to the guide groove 6 by sliding up and down with a resistance member 61 for clamping the wire harness in the guide groove 6, and the fixed clamp body 2 and the movable clamp body 3 are both threadedly connected with a fixed screw 62 with an end portion rotatably connected to the resistance member 61. When the guide is fixed and clamped, the wire is first passed through the guide groove 6, and then the fixed screw 62 is rotated to make the fixed screw 6 2 moves downward on the fixed clamp body 2 or the movable clamp body 3, thereby pulling the contact member 61 downward and entering the wire guide groove 6 to clamp the wire harness in the wire guide groove 6. Conversely, the fixing screw 62 is rotated in the opposite direction to push the contact member 61 upward to release the clamping of the wire harness. The contact member 61 is also provided with a raised contact portion 63 that can enter the wire guide groove 6. The raised contact portion 63 is provided with a groove 64 that can be directly clamped on the wire harness to clamp the wire harness more stably.

[0024] Further, refer to Figure 2 As shown, in order to avoid wear between the wire harness and the edges of the clamp body, protective sleeves 7 are provided at the openings at both ends of the lead groove 6. The protective sleeves 7 can be made of materials such as rubber or silicone, and the protective sleeves 7 are folded outward to connect with the side walls of the fixed clamp body 2 and the movable clamp body 3 to protect the wires, avoid friction and wear of the wires, and reduce their service life.

[0025] Furthermore, the cross-sectional width of the lead groove 6 gradually decreases from top to bottom, and the raised contact portion 63 corresponds to the lead groove 6, and the width can gradually increase from top to bottom to adapt to clamping wires of different specifications and thicknesses, and avoid the thinner wires from shaking in the lead groove 6.

[0026] Among them, a ball 8 is provided in the through hole where the movable clamp 3 contacts the sliding rod 1. When the bimetallic strip 5 drives the movable clamp 3 to slide on the sliding rod 1, the ball 8 changes the surface contact between the movable clamp 3 and the sliding rod 1 into point contact, so that the sliding friction is converted into rolling friction, thereby making the movement of the movable clamp 3 smoother.

[0027] It should be noted that the bending force of the bimetallic strip 5 and the amount of guide expansion and contraction caused by temperature changes are accurately calculated and experimentally debugged to find the best parameter combination to ensure that within the normal temperature change range, the bimetallic strip 5 can effectively bend and drive the movable clamp 3 to move. In different areas of use, such as the northern regions with severe winters, different types of metal strips with different thermal expansion coefficients can be used to achieve bending and straightening. This technology is existing technology and should be known to those skilled in the art, so no further elaboration will be given here.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable penetration clamp, characterized in that: The invention comprises a sliding rod body (1) and a clamp body, wherein the clamp body comprises a fixed clamp body (2) and a movable clamp body (3) arranged on the sliding rod body (1), wherein the fixed clamp body (2) is fixedly connected to the sliding rod body (1), and the movable clamp body (3) is slidably connected to the sliding rod body (1), and a connecting seat (4) is provided on the sliding rod body (1), wherein the connecting seat (4) and the movable clamp body (3) are connected via a bimetallic strip (5) having different thermal expansion coefficients, and the bimetallic strip (5) is flexed and extended according to temperature changes to drive the movable clamp body (3) to move away from or close to the fixed clamp body (2).

2. The adjustable penetration clamp according to claim 1, characterized in that: The connecting seat (4) is slidably sleeved on the sliding rod body (1), and a locking screw (41) is threadedly connected to the connecting seat (4). When the locking screw (41) conflicts with the sliding rod body (1), the connecting seat (4) is fixed on the sliding rod body (1).

3. The adjustable penetration clamp according to claim 1, characterized in that: The fixed clamp body (2) and the movable clamp body (3) are both provided with a wire guide groove (6) for the wire harness to pass through, and the fixed clamp body (2) and the movable clamp body (3) are both slidably connected to a resistance piece (61) for clamping the wire harness in the wire guide groove (6), and the fixed clamp body (2) and the movable clamp body (3) are both threadedly connected to a fixed screw (62) whose end is rotatably connected to the resistance piece (61).

4. The adjustable penetration clamp according to claim 3, characterized in that: Protective sleeves (7) are provided at the openings at both ends of the lead groove (6), and the protective sleeves (7) are folded outwards to connect with the side walls of the fixed clamping body (2) and the movable clamping body (3).

5. The adjustable penetration clamp according to claim 3, characterized in that: The cross-sectional width of the lead groove (6) gradually decreases from top to bottom.

6. The adjustable penetration clamp according to claim 1, characterized in that: A ball (8) is provided in the through hole where the movable clamp (3) contacts the sliding rod (1).

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