Cable and corrugated pipe integrated locking type through-wall cable gland

Abstract

The invention discloses a cable and corrugated pipe integrated locking type through-wall cable gland which comprises a cable gland body, a cable and corrugated pipe integrated sealing mechanism and a nut, the cable and corrugated pipe integrated sealing mechanism is sleeved with the cable gland body, and the nut is screwed on the cable gland body and a corrugated pipe. The part composition of the cable gland is simplified, and the structural cost can be reduced; the cable gland can be compatible with cables of different specifications only by replacing the sealing piece and the fixing piece, the whole cable gland does not need to be replaced, and the material cost can be reduced; in addition, the nut is directly connected with the cable gland main body, the size is smaller, and the reliability is higher; the installation steps are simplified, and assembling is more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of cable glands, and in particular relates to a cable and corrugated pipe integrated locking type wall gland. Background Art

[0002] Cable glands, also known as cable waterproof joints, cable fixing joints and cable joints, are widely used in the fixing and protection of wires and cables in mechanical equipment electrical, marine electrical and anti-corrosion equipment. Cable glands are generally composed of nuts, clamping heads, sealing rubber rings and other parts. Nuts are used to fix cable glands at the interface of equipment or junction boxes; the clamping head can exert appropriate pressure on the cable; and the sealing rubber ring is a very critical part, which fits tightly to the cable sheath to prevent external liquids, gases or solid particles from entering the equipment.

[0003] Existing cable glands, such as CN201120522138.X, a waterproof cable connector, are assembled from nuts, gaskets, connector bodies, clamping rings, clamping claws, and clamping heads. Cables of different specifications require cable glands of different specifications. When cables and corrugated tubes need to be used in combination, the installation steps are also complicated.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a cable and corrugated pipe integrally locked wall gland, thereby overcoming the above-mentioned defects in the prior art.

[0006] In order to achieve the above-mentioned objectives, the present invention provides a cable and corrugated pipe integrated locking wall gland, the corrugated pipe is sleeved on the cable, comprises a gland body, a sealing mechanism and a nut, the gland body is sleeved on the sealing mechanism, the cable and the corrugated pipe pass through the sealing mechanism, and the nut is screwed on the gland body and the corrugated pipe.

[0007] Further, as a preference, the sealing mechanism comprises a sealing member and a fixing member, the sealing member is sleeved on the cable, the fixing member is sleeved on the sealing member and the corrugated pipe, and the nut is screwed on the cable gland body and the corrugated pipe to tighten the fixing member.

[0008] Furthermore, preferably, the sealing member has a cable sealing section and a cable clamping section; the fixing member has a cable fixing section and a bellows fixing section, the cable fixing section is sleeved on the cable sealing section of the sealing member, and the bellows fixing section is sleeved on the bellows; the cable fixing section and the bellows fixing section both have circumferential expansion and contraction displacements.

[0009] Further, as a preference, the inner wall of the end of the fixing section of the bellows of the fixing piece is provided with an anti-drop buckle, and the anti-drop buckle is used to buckle the outer wall of the bellows.

[0010] Furthermore, as a preference, the outer wall diameter of the cable fixing section of the fixing member is smaller than the outer wall diameter of the corrugated tube fixing section, and a step-like structure is formed at the intersection of the two.

[0011] Further, as a preference, ends of the cable fixing section and the corrugated tube fixing section of the fixing member are both provided with chamfered structures.

[0012] Further, as a preference, a circle of supporting structure is provided in the main body of the cable gland, and the supporting structure is used to support the cable clamping section of the seal.

[0013] Further, preferably, the cable clamping section of the seal includes a first clamping section and a second clamping section, the first clamping section is located inside the cable gland body and close to the supporting structure, the second clamping section is located outside the cable gland body, and the first clamping section and the second clamping section are two oppositely arranged frustum structures.

[0014] Furthermore, as a preference, a chassis sealing gasket and a hexagonal nut are provided on the cable gland body.

[0015] Further, as a preference, the assembly method of the cable gland is as follows: Pre-assemble the seal and the gland body together; The cable passes through the nut, the fixing piece, and the gland body in sequence, and the fixing piece is installed into the gland body and pressed on the seal; Slide the corrugated tube onto the cable and insert it into the fixture, then tighten the nut onto the gland body and the corrugated tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention simplifies the components of the cable gland and can reduce the structural cost; (2) The present invention can be compatible with cables of different specifications by only replacing the seal and the fixing parts, without replacing the entire cable gland, which can reduce material costs; (3) The nut of the present invention is directly connected to the main body of the gland, which is smaller in size and more reliable; (4) The installation steps of the present invention are simpler and the assembly is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded schematic diagram of the cable and corrugated pipe integrated locking wall gland of the present invention; Figure 2 It is a front view of the cable and corrugated pipe integrated locking wall gland of the present invention; Figure 3 It is a cross-sectional view of the cable and corrugated pipe integrated locking wall gland of the present invention; Figure 4 is an enlarged schematic diagram of the cable gland body of the present invention; Figure 5 is an enlarged schematic diagram of the fixing member of the present invention; Figure 6 It is a front view of the fixing member of the present invention; Figure 7 is an enlarged schematic diagram of the sealing member of the present invention; Figure 8 is a front view of the sealing member of the present invention; Figure markings: 1- bellows, 2- cable, 3- gland body, 31- supporting structure, 4- sealing mechanism, 41- seal, 411- cable sealing section, 412- cable clamping section, 4121- first clamping section, 4122- second clamping section, 4123- cable cavity, 42- fixing part, 421- cable fixing section, 422- bellows fixing section, 423- slot, 424- anti-drop buckle, 425- chamfered structure, 5- nut, 6- chassis sealing gasket, 7- hexagonal nut. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0019] A brief summary of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define the scope of any or all aspects. Its only purpose is to give some concepts of one or more aspects in a simplified form as a prelude to a more detailed description that will be given later.

[0020] Embodiment 1: like Figure 1-8 As shown, a cable and bellows integrated locking wall gland, the bellows 1 is sleeved on the cable 2, including a gland body 3, a sealing mechanism 4 and a nut 5, the gland body 3 is sleeved on the sealing mechanism 4, the cable 2 and the bellows 1 pass through the sealing mechanism 4, and the nut 5 is screwed on the gland body 3 and the bellows 1.

[0021] In this embodiment, as a specific solution, the sealing mechanism 4 includes a sealing member 41 and a fixing member 42, the sealing member 41 is sleeved on the cable 2, the fixing member 42 is sleeved on the sealing member 41 and the corrugated tube 1, and the nut 5 is screwed on the gland body 3 and the corrugated tube 1 and presses the fixing member 42.

[0022] In this embodiment, as a specific solution, the sealing member 41 has a cable sealing section 411 and a cable clamping section 412; the fixing member 42 has a cable fixing section 421 and a bellows fixing section 422, the cable fixing section 421 is sleeved on the cable sealing section 411 of the sealing member, and the bellows fixing section 422 is sleeved on the bellows 1; the cable fixing section 421 and the bellows fixing section 422 both have circumferential expansion and contraction displacements.

[0023] In this embodiment, as a more specific solution, a plurality of slots 423 are staggeredly provided on the fixing member 42 from the cable fixing section 421 to the bellows fixing section 422 and from the bellows fixing section 422 to the cable fixing section 421, so that the cable fixing section 421, the bellows fixing section 422 and the fixing member 42 as a whole have circumferential expansion and contraction displacements, so that during assembly, the fixing member 42 can better cooperate with the cable and the bellows for clamping, thereby improving the reliability of clamping.

[0024] In this embodiment, as a specific solution, the inner wall of the end of the bellows fixing section 422 of the fixing member 42 is provided with an anti-slip buckle 424, and the anti-slip buckle 424 is used to buckle the outer wall of the bellows 1, so as to prevent the bellows 1 from loosening from the fixing member 42.

[0025] In this embodiment, as a specific solution, the outer wall diameter of the cable fixing section 421 of the fixing member 42 is smaller than the outer wall diameter of the corrugated tube fixing section 422, and a step-like structure is formed at the intersection of the two. The interior of the cable gland body 3 has a matching step-like structure; the step-like structure can improve the reliability of the structure after the cable gland body 3, the fixing member 42, the cable 2 and the corrugated tube 1 are assembled.

[0026] In this embodiment, as a specific solution, the ends of the cable fixing section 421 and the corrugated tube fixing section 422 of the fixing member 42 are both provided with chamfered structures 425. The chamfered structures 425 make the cable gland body 3, the nut 5 and the fixing member 42 fit more closely.

[0027] In this embodiment, as a specific solution, a circle of supporting structure 31 is provided inside the cable gland body 3 , and the supporting structure 31 is used to support the cable clamping section 412 of the sealing member 41 .

[0028] In this embodiment, as a more specific solution, a circle of support structure 31 is composed of a plurality of support sheets, and there is a gap between two adjacent support sheets. The circle of support structure 31 is an inclined structure as a whole.

[0029] In this embodiment, as a specific solution, the cable clamping section 412 of the seal 41 includes a first clamping section 4121 and a second clamping section 4122, the first clamping section 4121 is located inside the gland body 3 and close to the support structure 31, the second clamping section 4122 is located outside the gland body 3, the first clamping section 4121 and the second clamping section 4122 are two oppositely arranged frustum structures; this structure can adapt to the bending angle of the cable 2.

[0030] In this embodiment, as a more specific solution, the support structure 31 is matched with the first clamping section 4121, so that the cable gland body 3 can better clamp the cable clamping section 412 of the seal 41; the two relatively arranged frustum structures form a certain cable cavity 4123, and when the cable at the mouth of the second clamping section 4122 is bent, the cable can be buffered in the cable cavity 4123, thereby adapting to the angle change of the cable.

[0031] In this embodiment, as a specific solution, a chassis sealing gasket 6 and a hexagonal nut 7 are provided on the cable gland body 3 .

[0032] In this embodiment, as a specific solution, the sealing member 41 and the fixing member 42 are both integrally injection-molded from plastic.

[0033] In this embodiment, as a specific solution, the assembly method of the cable gland is as follows: Pre-assemble the seal 41 and the gland body 3 together; The cable 2 passes through the nut 5, the fixing piece 42, and the gland body 3 in sequence, and the fixing piece 42 is installed into the gland body 3 and pressed on the sealing piece 41; The corrugated tube 1 is put onto the cable 2 and installed into the fixing member 42 , and then the nut 5 is tightened on the gland body 3 and the corrugated tube 1 .

[0034] When it is necessary to use cables of different specifications, the nut 5 is loosened and the sealing member 41 and the fixing member 42 of different specifications are replaced.

[0035] In another embodiment, the sealing member 41 and the fixing member 42 are an integrated structure (not shown in the figure), and the integrated structure has a circumferential expansion and contraction displacement.

[0036] The present invention has the following advantages: 1. The present invention simplifies the components of the cable gland and can reduce the structural cost; 2. The present invention can be compatible with cables of different specifications by only replacing the seal and the fixing parts, without replacing the entire cable gland, which can reduce material costs; 3. The nut of the present invention is directly connected to the main body of the gland, which is smaller in size and more reliable; 4. The installation steps of the present invention are simpler and the assembly is more convenient.

[0037] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A cable and corrugated tube integrated locking wall gland, wherein the corrugated tube is sleeved on the cable, characterized in that: It comprises a gland body, a sealing mechanism and a nut. The gland body is sleeved on the sealing mechanism. The cable and the corrugated pipe pass through the sealing mechanism. The nut is screwed on the gland body and the corrugated pipe.

2. The cable and corrugated pipe integrated locking wall gland according to claim 1, characterized in that: The sealing mechanism comprises a sealing member and a fixing member, wherein the sealing member is sleeved on the cable, the fixing member is sleeved on the sealing member and the corrugated pipe, and the nut is screwed on the cable gland body and the corrugated pipe to press the fixing member tightly.

3. The cable and corrugated pipe integrated locking wall gland according to claim 2, characterized in that: The sealing member comprises a cable sealing section and a cable clamping section; the fixing member comprises a cable fixing section and a bellows fixing section, the cable fixing section is sleeved on the cable sealing section of the sealing member, and the bellows fixing section is sleeved on the bellows; the cable fixing section and the bellows fixing section both have circumferential expansion and contraction displacements.

4. The cable and corrugated pipe integrated locking wall gland according to claim 3, characterized in that: An anti-dropping buckle is provided on the inner wall of the end of the fixing section of the bellows of the fixing piece, and the anti-dropping buckle is used to buckle the outer wall of the bellows.

5. The cable and corrugated pipe integrated locking wall gland according to claim 3, characterized in that: The outer wall diameter of the cable fixing section of the fixing member is smaller than the outer wall diameter of the corrugated tube fixing section, and a step-shaped structure is formed at the intersection of the two.

6. The cable and corrugated pipe integrated locking wall gland according to claim 3, characterized in that: The ends of the cable fixing section and the corrugated tube fixing section of the fixing member are both provided with chamfered structures.

7. The cable and corrugated pipe integrated locking wall gland according to claim 3, characterized in that: A circle of supporting structure is arranged inside the main body of the cable gland, and the supporting structure is used to support the cable clamping section of the sealing member.

8. The cable and corrugated pipe integrated locking wall gland according to claim 7, characterized in that: The cable clamping section of the seal comprises a first clamping section and a second clamping section, wherein the first clamping section is located inside the gland body and close to the supporting structure, and the second clamping section is located outside the gland body, and the first clamping section and the second clamping section are two oppositely arranged frustum structures.

9. The cable and corrugated pipe integrated locking wall gland according to any one of claims 1 to 8, characterized in that: A chassis sealing gasket and a hexagonal nut are arranged on the main body of the cable gland.

10. The cable and corrugated pipe integrated locking wall gland according to claim 2, characterized in that: The assembly method of the cable gland is as follows: Pre-assemble the seal and the gland body together; The cable passes through the nut, the fixing piece, and the gland body in sequence, and the fixing piece is installed into the gland body and pressed on the seal; Slide the corrugated tube onto the cable and insert it into the fixture, then tighten the nut onto the gland body and the corrugated tube.

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