Practical compression-resistant heat-resistant wire cable

Abstract

The utility model discloses a pressure-resistant and heat-resistant practical wire cable, which belongs to the technical field of wire cables, and comprises a buffer bottom shell arranged outside the cable, a through hole is arranged on the outer wall of the buffer bottom shell, the cable penetrates through the through hole, and sliding grooves are arranged on two sides of the upper end of the buffer bottom shell. A buffering top plate is arranged at the upper end of the buffering bottom shell, sliding plates inserted into the sliding grooves are fixedly connected to the bottoms of the two sides of the buffering top plate, a plurality of reset springs are connected to the bottoms of the inner sides of the sliding grooves in the two sides, and sealing rubber plates are connected to the bottoms of the sliding plates in the two sides; the sliding grooves in the two sides communicate with the hollow bin, when the sliding plates slide towards the interiors of the sliding grooves, air is pressed into the hollow bin through the arranged sealing rubber plates, the downward moving speed of the buffering bottom shell can be slowly stopped along with the rise of the pressure in the lower hollow bin, and then buffering can be completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wires and cables, and in particular relates to a pressure-resistant and heat-resistant practical electric wire and cable. Background Art

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion. Wires and cables in a broad sense are also referred to as cables. Cables in a narrow sense refer to insulated cables, which can be defined as one or more insulated cores, and their respective coatings, total protective layers and outer sheaths. Cables may also have additional uninsulated conductors.

[0003] At present, in order to increase the supporting force of wires and cables when they are squeezed, China Utility Model Patent Authorization Announcement No. CN216119626U discloses a practical pressure-resistant and heat-resistant wire and cable. A corresponding number of buffer bottom shells are fixed on the outside of the cable body according to the installation length of the cable body. Then the buffer bottom shell can protect the cable body. When the top of the buffer bottom shell is impacted, the buffer upper top plate will compress the limiting slide plate downward, so that the limiting slide plate slides up and down inside the buffer bottom shell, so that the buffer spring undergoes elastic deformation to buffer the vibration impact amplitude, thereby avoiding direct impact on the cable body and strengthening the protection of the cable body during use. When the cable body encounters dangerous situations such as fire, it can prevent the internal combustion of the cable body, thereby protecting the cable body and improving the safety of the cable body during use.

[0004] Although the above-mentioned existing water collection can increase the pressure resistance of the cable, when the buffer upper plate moves downward, the buffer bottom shell moves downward to compress the buffer rubber particles, and the buffer rubber particles will still squeeze the cable surface, which is still easy to cause cable damage. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A practical pressure-resistant and heat-resistant electric wire and cable comprises a buffer bottom shell installed on the outside of the cable, the outer wall of the buffer bottom shell is provided with a through hole, the cable passes through the through hole, sliding grooves are provided on both sides of the upper end of the buffer bottom shell, and a buffer top plate is provided on the upper end of the buffer bottom shell. The bottoms of both sides of the buffer top plate are fixedly connected with sliding plates inserted into the sliding grooves, the inner bottoms of the sliding grooves on both sides are connected with a plurality of return springs, the bottoms of the sliding plates on both sides are connected with sealing rubber plates, and a hollow warehouse is provided inside the buffer bottom shell below the through hole, the sliding grooves on both sides are connected with the hollow warehouse, and when the buffer top plate moves downward, the sealing rubber plate pushes the internal air of the sliding groove into the inside of the through hole below, and the pressure inside the hollow warehouse increases to reduce the speed at which the buffer top plate moves downward.

[0008] Preferably, a similar hollow chamber is provided inside the buffer bottom shell above the through hole, and a connecting groove is provided between the hollow chambers on both sides, so that the hollow chambers on both sides increase the upper limit of the storage pressure.

[0009] Preferably, a first pressure relief valve is embedded in the upper end of the buffer bottom shell, and when the internal pressure of the hollow compartments on both sides increases, the first pressure relief valve is opened to discharge gas outward.

[0010] Preferably, an inflatable airbag connected to a first pressure relief valve is installed at the upper end of the buffer bottom shell. The first pressure relief valve is opened to discharge gas to inflate the inflatable airbag, and the buffer top plate moves downward to contact the inflated inflatable airbag to buffer the downward movement speed.

[0011] Preferably, a second pressure relief valve is installed on the outer wall of the inflatable airbag, and when the internal pressure of the inflatable airbag reaches a threshold value, the second pressure relief valve is opened to discharge gas outward.

[0012] Preferably, air intake one-way valves connected to the sliding grooves on both sides are installed on the outer walls of both sides of the buffer bottom shell, and when the buffer top plate is reset, external air enters the interior of the sliding groove through the air intake one-way valves.

[0013] Preferably, downwardly inclined connecting plates are fixedly connected to both sides of the buffer top plate, and the inclined connecting plates on both sides of the buffer top plate are moved downward to contact the ground.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the sliding plate slides into the sliding groove, the gas is pressed into the hollow chamber by the provided sealing rubber plate. As the pressure inside the hollow chamber below increases, the downward movement speed of the buffer bottom shell can be slowly stopped, thereby completing the buffering.

[0016] 2. The first pressure relief valve is opened to release pressure outward after the pressure inside the sliding grooves on both sides reaches the threshold value, so as to avoid damage caused by rupture of the buffer bottom shell. The air intake check valve is set so that when the sealing rubber plate moves upward to reset, the external air enters the interior of the sliding groove through the air intake check valve. When the sealing rubber plate moves downward, the air intake check valve is closed, so that the air inside the sliding groove will not leak out;

[0017] 3. By setting up the inflatable airbags, when the internal pressure of the hollow compartments on both sides exceeds the threshold of the first pressure relief valve, the first pressure relief valve is opened to fill the gas into the inflatable airbags to make them expand, so that the inflatable airbags can be used for buffering when the buffer top plate moves downward. The second pressure relief valve can be opened to exhaust gas outwards after the internal gas pressure of the inflatable airbags reaches the threshold, so as to prevent the inflatable airbags from rupturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a pressure-resistant and heat-resistant practical wire and cable in the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the buffer bottom shell in the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the buffer top plate in the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the inflatable airbag in the utility model.

[0023] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0024] 100. Cable;

[0025] 200, buffer bottom shell; 201, sliding groove; 202, hollow chamber; 203, through hole; 204, first pressure relief valve; 205, connecting groove; 206, inflatable airbag; 207, second pressure relief valve; 208, air intake check valve;

[0026] 300, buffer top plate; 301, inclined connecting plate; 302, sliding plate; 303, sealing rubber plate; 304, return spring. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] like Figure 1 As shown, it is a schematic diagram of the structure of a pressure-resistant and heat-resistant practical wire and cable according to a preferred embodiment of the utility model. The pressure-resistant and heat-resistant practical wire and cable of this embodiment includes a buffer bottom shell 200 which is sleeved on the outside of the cable 100. The upper end of the buffer bottom shell 200 is elastically slidably connected to a buffer top plate 300. When the cable 100 is crushed, the buffer top plate 300 slides toward the inside of the buffer bottom shell 200 to buffer the pressure, thereby effectively protecting the cable 100 and increasing its service life.

[0031] like Figure 2 as well as Figure 4 As shown, it is a cross-sectional view of the buffer bottom shell and a schematic diagram of the buffer top plate structure in this embodiment. The end of the buffer bottom shell 200 is provided with a through hole 203, and the cable passes through the through hole 203. Sliding grooves 201 are provided on both sides of the upper end of the buffer bottom shell 200. The bottom sides of the bottom of the buffer top plate 300 are fixedly connected with sliding plates 302 that are slidably connected to the sliding grooves 201, and the inner bottoms of the sliding grooves 201 on both sides are fixedly connected with multiple reset springs 304. In this embodiment, the buffer top plate 300 is subjected to pressure so that the sliding plates 302 on both sides move downward along the sliding grooves 201 and compress the multiple reset springs 304, thereby being able to protect the cable 100 with low pressure.

[0032] like Figure 2 As shown, and Figure 4 As shown, in order to further increase the buffering capacity of pressure, in this embodiment, hollow chambers 202 are provided inside the buffer bottom shell 200 on the upper and lower sides of the through hole 203, the lower hollow chamber 202 is connected to the inside of the sliding grooves 201 on both sides, and the bottoms of the sliding plates 302 on both sides are fixedly connected with sealing rubber plates 303. When the sliding plates 302 slide into the sliding grooves 201, the sealing rubber plates 303 press the gas into the interior of the hollow chamber 202. As the pressure inside the lower hollow chamber 202 increases, the downward movement speed of the buffer bottom shell 200 can be slowly prevented, thereby completing the buffering.

[0033] like Figure 3 As shown, it is in this embodiment Figure 2 The enlarged structural diagram at point A in the middle shows that a connecting groove 205 is provided between the upper and lower hollow bins 202, so that the sealing rubber plate 303 can push the gas into the lower hollow bin 202 and then enter the upper hollow bin 202 through the connecting groove 205. The upper end of the buffer bottom shell 200 is embedded with a first pressure relief valve 204, which opens to release pressure outwards after the pressure inside the sliding grooves 201 on both sides reaches a threshold value, so as to avoid damage caused by rupture of the buffer bottom shell 200.

[0034] like Figure 2 As shown, in order to enable the buffer top plate 300 to quickly reset after being pressed down by pressure, in this embodiment, the outer walls of both sides of the buffer bottom shell 200 are detachably connected with an air intake check valve 208 that is connected to the interior of the sliding grooves 201 on both sides. When the sealing rubber plate 303 moves upward to reset, the external air enters the interior of the sliding groove 201 through the air intake check valve 208. When the sealing rubber plate 303 moves downward, the air intake check valve 208 is closed, so that the internal air of the sliding groove 201 will not leak out.

[0035] like Figure 4 As shown, in order to make the force-bearing area of ​​the buffer top plate 300 larger, in this embodiment, the outer walls on both sides of the buffer top plate 300 are fixedly connected with downwardly inclined inclined connecting plates 301. The setting of the inclined connecting plates 301 can block the pressure from the inclination and increase the force-bearing area. When the buffer top plate 300 moves downward to the bottom, the inclined connecting plates 301 on both sides contact the ground and can provide auxiliary support, thereby further increasing the service life of the cable 100.

[0036] like Figure 5 As shown, it is a schematic diagram of the inflatable airbag structure in this embodiment, the upper end of the buffer bottom shell 200 is detachably connected to the inflatable airbag 206 connected to the first pressure relief valve 204, and the outer wall of the inflatable airbag 206 is detachably connected to the second pressure relief valve 207. In this embodiment, when the internal pressure of the hollow warehouse 202 on both sides exceeds the threshold value of the first pressure relief valve 204, it is opened to fill the gas into the interior of the inflatable airbag 206 to make it expand, so that when the buffer top plate 300 moves downward, the inflatable airbag 206 can be used for buffering, and the second pressure relief valve 207 can be opened to exhaust air outwards after the internal gas pressure of the inflatable airbag 206 reaches the threshold value, thereby preventing the inflatable airbag 206 from rupturing.

[0037] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A pressure-resistant and heat-resistant practical wire and cable, comprising a buffer bottom shell (200) installed outside the cable (100), the outer wall of the buffer bottom shell (200) is provided with a through hole (203) through which the cable (100) passes, sliding grooves (201) are provided on both sides of the upper end of the buffer bottom shell (200), a buffer top plate (300) is provided on the upper end of the buffer bottom shell (200), and the bottoms of both sides of the buffer top plate (300) are fixedly connected with sliding plates (302) inserted into the sliding grooves (201), and the inner bottoms of the sliding grooves (201) on both sides are connected with a plurality of return springs (304), characterized in that: The bottom of the sliding plates (302) on both sides are connected with sealing rubber plates (303), and a hollow chamber (202) is arranged inside the buffer bottom shell (200) below the through hole (203). The sliding grooves (201) on both sides are connected with the hollow chamber (202). When the buffer top plate (300) moves downward, the sealing rubber plate (303) pushes the internal air of the sliding groove (201) into the through hole (203) below. The internal pressure of the hollow chamber (202) increases, thereby reducing the speed at which the buffer top plate (300) moves downward.

2. The pressure-resistant and heat-resistant practical wire and cable according to claim 1, characterized in that: The same hollow chamber (202) is arranged inside the buffer bottom shell (200) above the through hole (203), and a connecting groove (205) is arranged between the hollow chambers (202) on both sides, so that the hollow chambers (202) on both sides increase the upper limit of the storage pressure.

3. The pressure-resistant and heat-resistant practical wire and cable according to claim 2, characterized in that: The upper end of the buffer bottom shell (200) is embedded with a first pressure relief valve (204), and when the internal pressure of the hollow chambers (202) on both sides increases, the first pressure relief valve (204) is opened to discharge gas outwards.

4. The pressure-resistant and heat-resistant practical wire and cable according to claim 3, characterized in that: An inflatable airbag (206) connected to a first pressure relief valve (204) is installed at the upper end of the buffer bottom shell (200). When the first pressure relief valve (204) is opened and the gas is discharged, the inflatable airbag (206) is inflated and expanded, and the buffer top plate (300) moves downward to contact the expanded inflatable airbag (206) to buffer the speed of downward movement.

5. The pressure-resistant and heat-resistant practical wire and cable according to claim 4, characterized in that: A second pressure relief valve (207) is installed on the outer wall of the inflatable airbag (206). When the internal pressure of the inflatable airbag (206) reaches a threshold value, the second pressure relief valve (207) is opened to discharge gas to the outside.

6. The pressure-resistant and heat-resistant practical wire and cable according to claim 5, characterized in that: The outer walls on both sides of the buffer bottom shell (200) are provided with air intake check valves (208) connected to the sliding grooves (201) on both sides. When the buffer top plate (300) is reset, external air enters the interior of the sliding groove (201) through the air intake check valves (208).

7. The pressure-resistant and heat-resistant practical wire and cable according to claim 6, characterized in that: The two sides of the buffer top plate (300) are fixedly connected with downwardly inclined inclined connecting plates (301), and the buffer top plate (300) moves downward so that the inclined connecting plates (301) on both sides contact the ground.

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