A buried CPVC cable protection tube with micro-seismic function

Abstract

A buried CPVC cable protection tube with micro-anti-seismic function relates to the technical field of cable protection tubes, including a tube body, and a supporting mechanism and an anti-seismic buffer mechanism arranged in the tube body; the supporting mechanism includes a supporting frame, a fixing rod slidably mounted on the supporting frame, and a clamping rod connected to the fixing rod; the supporting frame is provided with a plurality of limiting holes corresponding to the clamping rod; a fixing hole is provided on the inner wall of the tube body corresponding to the fixing rod; the anti-seismic buffer mechanism includes a lower connecting frame fixedly mounted on the supporting frame, an upper connecting frame elastically connected to the lower connecting frame, an upper clamping plate elastically mounted on the upper connecting frame, a lower clamping plate elastically mounted on the lower connecting frame, and a lifting assembly for driving the upper clamping plate to move; the tube body and the anti-seismic buffer mechanism of the present invention are detachable designs, which are convenient for disassembly and maintenance. When only the tube body or the anti-seismic buffer mechanism is damaged and needs to be repaired or replaced, only the corresponding parts need to be disassembled or replaced, which is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of cable protection tubes, and in particular to an underground CPVC cable protection tube with a micro-seismic function. Background Art

[0002] Cable protection tube refers to a protective tube with a certain mechanical strength that is laid on the outer layer of the cable to prevent the cable from being damaged. The buried cable protection tube based on CPVC has the characteristics of good heat resistance, high strength, and long service life. It is currently widely used. Because the buried cable protection tube needs to be buried underground, it needs certain seismic and pressure resistance.

[0003] For example, the Chinese utility model patent with publication number CN216819266U discloses a seismic-resistant cable protection tube for municipal construction, including a cable body, a buffer pad movably connected to the outer wall of the cable body, a pressure rod fixedly connected to the outer wall of the buffer pad, a pressure plate fixedly connected to one end of the pressure rod, a sleeve box movably connected to the inner top wall of the sleeve box, a pressure groove opened on the inner side wall of the sleeve box, a damping block fixedly connected to the inner wall of the pressure groove, and a pressure block movably connected to the inner wall of the pressure groove. The seismic-resistant cable protection tube for municipal construction achieves the effect of buffering and seismic resistance, timely and effectively weakens the impact force, thereby effectively weakening the damage to the cable body.

[0004] However, the seismic structure of the seismic-resistant cable protection tube as described above is connected to the tube body itself. When the cable protection tube is maintained or replaced, the seismic structure and the tube body need to be disassembled as a whole, which undoubtedly increases the maintenance cost. Therefore, it is necessary to invent an underground CPVC cable protection tube with micro-seismic function to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention proposes an underground CPVC cable protection tube with micro-seismic function, and the technical solution used is:

[0006] A buried CPVC cable protection tube with micro-seismic function, comprising a tube body, and a supporting mechanism and a seismic buffer mechanism arranged in the tube body;

[0007] The support mechanism comprises a support frame, a fixing rod slidably mounted on the support frame, and a clamping rod connected to the fixing rod; the support frame is provided with a plurality of limiting holes corresponding to the clamping rod; and a fixing hole is provided on the inner side wall of the tube body corresponding to the fixing rod.

[0008] Furthermore, the anti-seismic buffer mechanism includes a lower connecting frame fixedly mounted on a supporting frame, an upper connecting frame elastically connected to the lower connecting frame, an upper clamping plate elastically mounted on the upper connecting frame, a lower clamping plate elastically mounted on the lower connecting frame, and a lifting assembly for driving the upper clamping plate to move; the lifting assembly includes a connecting shaft rotatably mounted on the lower connecting frame, a cam coaxially fixedly mounted on the connecting shaft with the center of the base circle and intermittently pushing the upper clamping plate, a knob coaxially fixedly mounted on the connecting shaft, and a clamping block; the knob and the lower connecting frame are provided with connecting grooves that can be intermittently connected to each other, and the clamping block is slidably mounted in the connecting grooves.

[0009] Furthermore, an internally threaded tube is coaxially fixedly installed at the rear end of the tube body, and a telescopic tube is coaxially fixedly installed at the front end; an externally threaded tube that cooperates with the internally threaded tube is coaxially fixedly installed on the telescopic tube.

[0010] Furthermore, the tube body is a double-layer tube, and the fixing holes are arranged on the inner tube of the tube body.

[0011] Furthermore, the clamping rod is a threaded rod and is threadably connected to the fixing rod.

[0012] Furthermore, a plurality of upper connecting frames are provided, and adjacent upper connecting frames are slidably connected to each other.

[0013] Furthermore, the upper connecting frame and the lower connecting frame are elastically connected via a spring telescopic rod.

[0014] Furthermore, the upper connecting frame and the upper clamping plate are elastically connected via a spring telescopic rod.

[0015] Furthermore, the lower connecting frame and the lower clamping plate are elastically connected via a spring telescopic rod.

[0016] Since the present invention adopts the above technical solution, the present invention has the following advantages:

[0017] 1. The tube body and the anti-seismic buffer mechanism of the present invention are detachable, which is convenient for disassembly and maintenance. When only the tube body or the anti-seismic buffer mechanism is damaged and needs to be repaired or replaced, only the corresponding parts need to be disassembled or replaced, which is more convenient.

[0018] 2. Through the coordinated design of the tube body and the supporting mechanism, the present invention can align the upper connecting frame of the seismic buffer mechanism with the surface of the tube body that may be squeezed to the greatest extent, and provide strong support for the impact under the coordinated action of the tube body and the lower connecting frame, effectively preventing the entire tube body from being compressed and deformed or even damaged over a large area.

[0019] 3. In the seismic buffer mechanism, since the upper connecting frame and the lower connecting frame, the upper connecting frame and the upper clamping plate, and the lower connecting frame and the lower clamping plate are elastically connected, and the adjacent upper clamping plates are slidingly connected, the cable has a good seismic buffering effect, and the impact force from the outside will be buffered by the spring telescopic rod, thereby reducing the impact on the cable itself.

[0020] 4. Adjacent pipe bodies are connected by threads, and the installation method is quick and convenient; there is also a telescopic tube inside the pipe body, which can be deployed to protect the cables inside when the pipe body is misaligned, avoiding direct contact between the cables and the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1-Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the tube body of the present invention.

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the tube body part of the present invention.

[0024] Figure 5 It is a schematic diagram of the assembly structure of the telescopic tube and the externally threaded tube in the tube body of the present invention.

[0025] Figure 6-Figure 7 It is a schematic diagram of the assembly structure of the support mechanism and the anti-seismic buffer mechanism of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the support mechanism of the present invention.

[0027] Fig. 9 It is a partial structural schematic diagram of the support mechanism of the present invention.

[0028] Fig.10 It is a structural schematic diagram of the anti-seismic buffer mechanism of the present invention.

[0029] Figure 11-13 It is a partial structural schematic diagram of the anti-seismic buffer mechanism of the present invention.

[0030] Fig.14 It is a schematic diagram of the working connection of two pipe bodies of the present invention.

[0031] Fig.15 It is a cross-sectional schematic diagram of two tube bodies after being connected according to the present invention.

[0032] Figure Number:

[0033] 1-tube body; 101-telescopic tube; 102-inner threaded tube; 103-outer threaded tube; 104-fixing hole;

[0034] 2-support mechanism; 201-support frame (2011-limiting hole); 202-fixing rod; 203-clamping rod;

[0035] 3-anti-seismic buffer mechanism; 301-upper connecting frame; 302-lower connecting frame; 303-upper clamping plate; 304-lower clamping plate; 305-lifting assembly (3051-cam; 3052-connecting shaft; 3053-knob; 3054-block). DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0038] This embodiment discloses a buried CPVC cable protection tube with micro-seismic function, such as Figure 1-Figure 2 As shown, each section of the cable protection tube includes a tube body 1 , and a supporting mechanism 2 and a seismic buffer mechanism 3 arranged in the tube body 1 .

[0039] like Figure 3-Figure 5 As shown, the tube body 1 is a double-layer tube, which has a better earthquake resistance effect; the tube body 1 is also provided with a telescopic tube 101, an internally threaded tube 102 and an externally threaded tube 103; the internally threaded tube 102 is coaxially fixedly installed at the rear end of the tube body 1; one end of the telescopic tube 101 is coaxially fixedly installed in the front end of the tube body 1, and the other end is coaxially fixedly connected with the externally threaded tube 103 (when the telescopic tube 101 is in a compressed state, the externally threaded tube 103 contacts the front end of the tube body 1, and the telescopic tube 101 is located inside the tube body 1 as a whole); the internally threaded tube 102 and the externally threaded tube 103 cooperate with each other;

[0040] Specifically, Figure 14-15As shown, when the two tube bodies 1 are connected end to end, the external threaded tube 103 at the front end of one of the tube bodies 1 is rotated and installed into the internal threaded tube 102 at the rear end of the other tube body 1, and the two tube bodies 1 are connected; when the tube bodies 1 are impacted and the two tube bodies 1 are misaligned, the telescopic tube 101 stretches and bends. At this time, the telescopic tube 101 extends out of the tube body 1 and protects the cable inside it. Even if two adjacent tube bodies 1 are misaligned, the cable is not in direct contact with the external environment.

[0041] like Figure 6-Figure 9 As shown, the support mechanism 2 includes a support frame 201, a fixed rod 202 and a clamping rod 203; a group of fixed rods 202 are respectively provided on the left and right sides of the support frame 201, each group of fixed rods 202 is provided with four, and the fixed rods 202 in the same group are connected together by a connecting rod; the fixed rods 202 are slidably installed on the side of the support frame 201; each group of fixed rods 202 corresponds to a clamping rod 203, and the clamping rod 203 is a threaded rod and is threadedly installed on the connecting rod where the corresponding group of fixed rods 202 is located; the support frame 201 is provided with two inner and outer limiting holes 2011 corresponding to each clamping rod 203; as shown Figure 3-Figure 4 As shown, four groups of fixing holes 104 are provided on the inner layer tube of the tube body 1 corresponding to the fixing rods 202, and each group of fixing holes 104 is evenly distributed along the circumference, and the two groups of fixing rods 202 are intermittently extended into the fixing holes 104;

[0042] Specifically, in the initial state, the two clamping rods 203 are both located in the corresponding inner limiting holes 2011, and the fixing rod 202 is retracted into the support frame 201; after the adjacent tube bodies 1 are connected, the support frame 201 is placed into the tube body 1 (the clamping rod 203 is located at the rear end of the tube body 1), the clamping rod 203 is rotated to disengage the clamping rod 203 from the inner limiting hole 2011, and the clamping rod 203 is moved to the outer limiting hole 2011, and the clamping rod 203 is rotated to fix the clamping rod 203 in the outer limiting hole 2011, and at the same time, the fixing rod 202 extends out of the support frame 201 and extends into the fixing hole 104 of the tube body 1, so that the support frame 201 is fixed inside the tube body 1.

[0043] like Figure 10-13As shown, the seismic buffer mechanism 3 includes an upper connecting frame 301, a lower connecting frame 302, an upper clamping plate 303, a lower clamping plate 304 and a lifting assembly 305; the lower connecting frame 302 is fixedly mounted on the support frame 201; there are four upper connecting frames 301, which are arranged in a straight line, and the adjacent upper connecting frames 301 are vertically slidably connected; the left and right ends of each upper connecting frame 301 are elastically connected to the lower connecting frame 302 through a spring telescopic rod; four groups of upper clamping plates 303 and lower clamping plates 304 are correspondingly provided, and the four groups of upper clamping plates 303 and lower clamping plates 304 are arranged in a straight line; the upper clamping plate 303 is elastically connected to the upper connecting frame 301 through a spring telescopic rod, and the lower clamping plate 304 is elastically connected to the lower connecting frame 302 through a spring telescopic rod;

[0044] The lifting assembly 305 includes a cam 3051, a connecting shaft 3052, a knob 3053 and a block 3054; cams 3051 are provided at both ends of each upper clamping plate 303, and the cams 3051 on the same side are coaxially fixedly connected to the base circle center by rotating the connecting shaft 3052 installed on the lower connecting frame 302, and the connecting shafts 3052 on both sides are synchronously connected through a transmission wheel and a transmission belt; the knob 3053 is coaxially rotatably installed on one of the connecting shafts 3052, and the knob 3053 and the lower connecting frame 302 are provided with a connecting groove that can be intermittently connected to each other, and the block 3054 is slidably installed in the connecting groove;

[0045] Specifically, after the support frame 201 is fixed in the tube body 1, the anti-seismic buffer mechanism 3 also enters the tube body 1; the block 3054 is pushed outward to disengage the block 3054 from the connecting groove on the lower connecting frame 302, and the knob 3053 is turned, and the knob 3053 drives the two connecting shafts 3052 to rotate, so that the cams 3051 on both sides rotate 180 degrees synchronously, and then the block 3054 is pushed into the connecting groove on the connecting frame 302, and the cam 3051 pushes the upper clamping plate 303 upward (the upper connecting frame 301 will also slightly move upward accordingly). Move up), at this time, the cable to be installed is loaded into the tube body 1 and placed on the lower clamping plate 304; push the block 3054 outward again and turn the knob 3053 to make the cam 3051 rotate 180° and return to the initial state, the upper clamping plate 303 moves down and clamps the cable, the knob 3053 is connected to the connecting groove on the lower connecting frame 302, press the block 3054 to make it enter the connecting groove of the lower connecting frame 302, the knob 3053 is relatively fixed to the lower connecting frame 302, the connecting shaft 3052 no longer rotates, and the cable installation is completed.

[0046] The working principle of this embodiment is as follows:

[0047] This embodiment is applied to pipeline parts that are easily deformed and dislocated due to pressure and vibration.

[0048] 1. Installation of the pipe body 1: The staff inserts the external threaded pipe 103 of the pipe body 1 to be installed into the internal threaded pipe 102 of the installed pipe body 1, and then rotates the pipe body 1 to connect the external threaded pipe 103 and the internal threaded pipe 102 together, and the installation of the pipe body 1 is completed.

[0049] 2. Installation of the anti-seismic buffer mechanism 3: The staff puts the support frame 201 into the tube body 1 (the clamping rod 203 and the knob 3053 are both located at the rear end of the tube body 1, and ensure that the upper clamping plate 303 and the lower clamping plate 304 are correctly positioned up and down). After the upper connecting frame 301 is aligned with the predicted pressure point of the tube body 1, the staff moves the clamping rod 203 from the inner limiting hole 2011 to the outer limiting hole 2011, and the fixing rod 202 extends out of the support frame 201 and into the fixing hole 104, so that the support frame 201 is fixed in the tube body 1, and the installation of the anti-seismic buffer mechanism 3 is completed.

[0050] 3. Installation of the cable: The staff pushes the block 3054 outward and turns the knob 3053, the cam 3051 rotates 180° and pushes the upper clamping plate 303 upward, pushing the block 3054 into the connecting groove of the lower connecting frame 302, then puts the cable into the tube body 1 and places it on the lower clamping plate 304, pushes the block 3054 outward again and turns the knob 3053, so that the cam 3051 rotates 180°, the upper clamping plate 303 moves down and clamps the cable, presses the block 3054 to make it enter the connecting groove of the lower connecting frame 302, the knob 3053 is relatively fixed to the lower connecting frame 302, the connecting shaft 3052 no longer rotates, and the cable installation is completed.

[0051] Since the upper connecting frame 301 and the lower connecting frame 302, the upper connecting frame 301 and the upper clamping plate 303, and the lower connecting frame 302 and the lower clamping plate 304 are elastically connected by spring telescopic rods, and adjacent upper clamping plates 303 are slidably connected, the area around the cable has a good anti-seismic buffering effect. When the tube body 1 is squeezed, the impact force from the outside will be buffered by the spring telescopic rods, thereby reducing the impact on the cable itself.

[0052] The tube body 1 and the anti-seismic buffer mechanism 3 are detachable, which is convenient for disassembly and maintenance. When only the tube body 1 or the anti-seismic buffer mechanism 3 is damaged and needs to be repaired or replaced, only the corresponding part needs to be disassembled or replaced, which is more convenient.

Claims

1. A buried CPVC cable protection tube with micro-seismic function, characterized in that: The cam is coaxially fixed on the connecting shaft and the locking cam is connected with the locking cam by the locking cam, and the locking cam is connected with the locking cam by the locking cam.

2. According to claim 1, the buried CPVC cable protection tube with micro-seismic function is characterized in that: An internally threaded tube is coaxially fixedly installed at the rear end of the tube body, and a telescopic tube is coaxially fixedly installed at the front end; an externally threaded tube that cooperates with the internally threaded tube is coaxially fixedly installed on the telescopic tube.

3. The buried CPVC cable protection tube with micro-seismic function according to claim 1 or 2, characterized in that: The tube body is a double-layer tube, and the fixing holes are arranged on the inner tube of the tube body.

4. The buried CPVC cable protection tube with micro-seismic function according to claim 1 is characterized in that: The clamping rod is a threaded rod and is threadedly connected to the fixing rod.

5. The buried CPVC cable protection tube with micro-seismic function according to claim 1 is characterized in that: A plurality of upper connecting frames are provided, and adjacent upper connecting frames are slidably connected to each other.

6. The buried CPVC cable protection tube with micro-seismic function according to claim 1 is characterized in that: The upper connecting frame and the lower connecting frame are elastically connected via a spring telescopic rod.

7. The buried CPVC cable protection tube with micro-seismic function according to claim 1 is characterized in that: The upper connecting frame and the upper clamping plate are elastically connected via a spring telescopic rod.

8. The buried CPVC cable protection tube with micro-seismic function according to claim 1 is characterized in that: The lower connecting frame and the lower clamping plate are elastically connected via a spring telescopic rod.

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