Drag chain link and drag chain

Abstract

The utility model discloses a drag chain link and drag chain relates to drag chain technical field, including pinch plate and side plate, said pinch plate is close to the both ends of one side of the wire channel are provided with the card slot, the slot bottom of card slot and the one side of pinch plate far away from the wire channel is provided with through plug-in hole between the slot bottom of card slot and the one side of pinch plate far away from the wire channel; a convex buckle is arranged on the side, close to the wire passing channel, of the side plate, and a convex limiting structure is arranged on the side, close to the buckle plate, of the convex buckle; the convex buckle can be adaptively clamped with the clamping groove, and the convex limiting structure can be adaptively inserted with the insertion hole; a first groove is formed in one side of the buckle plate, a second groove is formed in the groove bottom of the first groove, and the size of a groove opening of the second groove is smaller than that of the groove bottom of the first groove. According to the drag chain link, the connecting and fixing effects between the buckle plates and the side plates are good, and the structural strength and the machining convenience can be considered through the design of the weight reduction structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drag chain technical field especially relates to a drag chain section and drag chain. BACKGROUND

[0002] Drag chain is mostly used for laying line, pipeline, cable, and contains a plurality of articulable each other connected drag chain section, these drag chain sections each have two side plates and the buckle plate connecting the two side plates with each other, a plurality of drag chain sections are relatively rotatably connected together.

[0003] The buckle plate and the side plate of the drag chain section in the prior art are easy to fall off in the use process, and the connection fixing effect is poor, and the drag chain section in the prior art is usually grooved or holed when being designed to reduce weight, and in order to ensure the overall structural strength after weight reduction, another reinforcing rib is usually arranged, and such a structure design has the disadvantage of not being convenient for processing.

[0004] In view of the problems existing in the prior art, the technical personnel in the field urgently need a drag chain section and a drag chain. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a drag chain section and a drag chain to solve the problems existing in the prior art, the connection fixing effect between the buckle plate and the side plate is good, and the design of the weight reduction structure can consider the structural strength and processing convenience.

[0006] To achieve the above object, the utility model provides the following scheme:

[0007] In a first aspect, the utility model provides a drag chain section, which comprises a buckle plate and a side plate, two parallelly arranged buckle plates and two parallelly arranged side plates form a wire passing channel, and the two ends of the buckle plate are detachably connected with the corresponding side plate; the two ends of the side of the buckle plate close to the wire passing channel are provided with clamping grooves, a plug-in hole penetrating between the groove bottom of the clamping groove and the side of the buckle plate away from the wire passing channel is arranged; the side of the side plate close to the wire passing channel is provided with a protruding buckle, and the side of the protruding buckle close to the buckle plate is provided with a protruding limiting structure; the protruding buckle can be adaptively clamped with the clamping groove, and the protruding limiting structure can be adaptively plugged with the plug-in hole; one side of the buckle plate is provided with a first recess, the groove bottom of the first recess is provided with a second recess, and the size of the groove opening of the second recess is smaller than the size of the groove bottom of the first recess.

[0008] In some embodiments, the first recess and the second recess are both waist-shaped grooves; the length of the groove opening of the second recess is smaller than the length of the groove bottom of the first recess, and / or the width of the groove opening of the second recess is smaller than the width of the groove bottom of the first recess; a step structure is formed between the first recess and the second recess.

[0009] In some embodiments, the convex buckle is provided with an assembly groove on one side close to the buckle plate, and an elastic member is installed in the assembly groove; the convex limiting structure comprises a plug-in part and a pressing part, one end of the plug-in part is connected with the elastic member, and the other end is connected with the pressing part; a third groove is arranged at the bottom of the clamping groove; when the pressing part is in a non-pressing state, the plug-in part is adapted to be plugged into the plug-in hole, and one end of the pressing part away from the plug-in part protrudes out of the plug-in hole; when the pressing part is in a pressing state, the plug-in part is separated from the plug-in hole, the pressing part can move towards the convex buckle, one end of the pressing part away from the plug-in part can be plugged into the third groove and can slide along the third groove, and the convex buckle can be slidably separated from the clamping groove.

[0010] In some embodiments, one end of the third groove is communicated with the plug-in hole, the other end extends to the end face of the buckle plate to form a first opening, the pressing part can slide along the third groove and slide out of the first opening; one end of the clamping groove extends to the end face of the buckle plate to form a second opening; and the extension direction of the clamping groove is the same as that of the third groove.

[0011] In some embodiments, the convex buckle is provided with a guide inclined surface on each side, the distance between the two guide inclined surfaces gradually increases from one end close to the buckle plate to the other end away from the buckle plate, and a limiting step is arranged at one end of the guide inclined surface away from the buckle plate; a clamping part is arranged on the inner wall of the clamping groove, and the clamping part can be clamped with the limiting step under the guidance of the guide inclined surface.

[0012] In some embodiments, the cross-sectional dimension of the pressing part is smaller than that of the plug-in part.

[0013] In some embodiments, the first groove and the second groove are arranged on the side of the buckle plate away from the wire passing channel.

[0014] In some embodiments, the elastic member is a spring or a compression spring.

[0015] In some embodiments, the side plate is provided with an anti-explosion limiting structure and an anti-explosion matching structure on the side away from the wire passing channel, the anti-explosion matching structure of one of the adjacent two chain drag links can be inserted into the anti-explosion limiting structure of the other to be limited and can rotate relative to each other.

[0016] In the second aspect, the utility model also provides a chain drag, comprising a plurality of above-mentioned chain drag links which are sequentially connected.

[0017] Compared with the prior art, the utility model has the following technical effects:

[0018] The utility model discloses a drag chain knot's buckle plate and side plate adopt the mode of detachable connection, be provided with the convex buckle on the side plate, and be provided with the convex limit structure on the convex buckle, be provided with the card slot and the plug -in hole on the buckle plate, when installing, the convex buckle can with the card joint of card slot, and the plug -in hole is inserted to the plug -in hole with the convex limit structure can be inserted to improve the effect that buckle plate and side plate are connected fixed. And the utility model discloses be provided with the lightening recess structure on the buckle plate, and this lightening recess structure includes the first recess that is recessed from the buckle plate surface to the inside and the second recess that is recessed to the inside continuously in the groove bottom of first recess, and the size of the slot mouth of second recess is less than the size of the groove bottom of first recess, like this forms the step structure between first recess and second recess, and this step structure can play the effect of improving structural strength, and the shape of this lightening recess structure is convenient for processing when processing, and the requirement of mould is low, can reduce the body weight while giving consideration to structural strength and processing convenience.

[0019] Further, in some embodiments, the side plate and the buckle plate of the utility model can be separated by pressing the pressing part when disassembling, so that the elastic member is compressed, the plug-in part is moved to shrink into the assembly groove, and then the plug-in hole is separated from contact. At this time, the pressing part can continue to slide along the third groove and slide out of the first opening, and the convex buckle on the side plate can slide in the same direction and separate from the card slot and slide out of the second opening, thereby realizing the separation of the side plate and the buckle plate. That is, when installing the buckle plate and the side plate of the utility model, they are fixed by clamping and plugging, and the connection and fixation effect is good. When disassembling, press the pressing part, then apply an external force to the buckle plate and the side plate to slide and separate, which is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0021] Figure 1 It is the structural schematic drawing of the first embodiment of the utility model's drag chain;

[0022] Figure 2 It is the structural schematic drawing of the first embodiment of the utility model's drag chain knot;

[0023] Figure 3 It is the structural schematic drawing of the first embodiment of the utility model's buckle plate;

[0024] Figure 4 It is the structural schematic drawing of the first embodiment of the utility model's side plate;

[0025] Figure 5 For Figure 4 the local enlarged view at A in the middle;

[0026] Figure 6 For the structure schematic view of the second embodiment of the drag chain of the utility model;

[0027] Figure 7 For the structure schematic view of the second embodiment of the drag chain link of the utility model;

[0028] Figure 8 For the axial view of the second embodiment of the buckle plate of the utility model;

[0029] Figure 9 For the bottom view of the second embodiment of the buckle plate of the utility model;

[0030] Figure 10 For the structure schematic view of the second embodiment of the side plate of the utility model;

[0031] Figure 11 For Figure 10 the local enlarged view at B in the middle;

[0032] Figure 12 For the position schematic view of the assembly groove and the elastic piece in some embodiments of the utility model.

[0033] In the figure: 1-buckle plate; 2-side plate; 10-thread passing channel; 11-first recess; 12-second recess; 13-step structure; 14-clamping groove; 15-insertion hole; 16-third recess; 17-first surface; 18-second surface; 21-buckle; 22-protrusion limiting structure; 23-assembly groove; 24-elastic piece; 25-explosion-proof limiting structure; 26-explosion-proof matching structure; 27-first main shaft; 28-second main shaft; 141-clamping part; 211-guiding inclined surface; 212-limiting step; 213-third surface; 221-insertion part; 222-pressing part. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] The utility model discloses a purpose is to provide a tow chain section and tow chain to solve the prior art problems, and the connecting fixed effect between the buckle plate and the side plate is good, and the design of weight reduction structure can give consideration to structural strength and processing convenience.

[0036] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model is further explained in detail below by combining with the drawings and specific embodiments.

[0037] Embodiment one

[0038] The embodiment provides a kind of tow chain section, as shown in Figures 1 to 5 Two parallelly arranged buckle plates 1 and two parallelly arranged side plates 2, two buckle plates 1 and two side plates 2 are enclosed into the wire passage 10 with rectangular cross section, so that electric wire cable passes through it.The two ends of buckle plate 1 can be detachably connected between the inner side of corresponding side plate 2, here the inner side of side plate 2 refers to the side close to wire passage 10, correspondingly, the outer side of side plate 2 refers to the side away from wire passage 10.

[0039] As shown in Figure 3 The side surface of buckle plate 1 away from wire passage 10 is defined as first surface 17, and the side surface of buckle plate 1 close to wire passage 10 is second surface 18.The two ends of second surface 18 of buckle plate 1 are provided with clamping groove 14, and the slot bottom of clamping groove 14 to the first surface 17 of buckle plate 1 forms through insertion hole 15.As Figure 4 The inner side of side plate 2 is provided with convex buckle 21, and convex buckle 21 is provided with convex limit structure 22 close to buckle plate 1.In assembly, convex buckle 21 can be clamped and fixed along the vertical direction with clamping groove 14, and convex limit structure 22 can be inserted along the vertical direction with insertion hole 15.So as to realize the connection and fixation of buckle plate 1 and side plate 2, can effectively prevent falling off.

[0040] And the first surface 17 of buckle plate 1 is inwardly recessed to form weight reduction groove structure, here inwardly recessed refers to the direction of recessing from surface to body interior, Figure 3In the embodiment, the first surface 17 of the buckle plate 1 is concave to form a weight-reducing groove structure. The weight-reducing groove structure includes a first groove 11 and a second groove 12. The first surface 17 of the buckle plate 1 is concave to form the first groove 11. The bottom of the first groove 11 is further concave to form the second groove 12. The opening of the second groove 12 is smaller than the bottom of the first groove 11. The bottom of the second groove 12 is lower than the bottom of the first groove 11 to form a step structure 13 between the first groove 11 and the second groove 12. The step structure 13 can improve the overall structural strength. The overall structure of the weight-reducing groove is convenient to process and has low requirements for the mold. The weight of the body can be reduced while considering the structural strength and processing convenience.

[0041] It should be noted that the embodiment is described by taking the first surface 17 of the buckle plate 1 as an example. The second surface 18 of the buckle plate 1 can also be concave to form a weight-reducing groove structure.

[0042] In the embodiment, the first groove 11 and the second groove 12 are both waist-shaped grooves. The opening of the second groove 12 is smaller than the length of the bottom of the first groove 11 to form the step structure 13 between the two ends of the length direction of the second groove 12 and the first groove 11. Alternatively, the opening of the second groove 12 is smaller than the width of the bottom of the first groove 11 to form the step structure 13 between the two ends of the width direction of the second groove 12 and the first groove. Alternatively, the opening of the second groove 12 is smaller than the size of the bottom of the first groove 11 in the length and width directions to form the step structure 13 between the first groove 11 and the second groove 12 along the circumference.

[0043] It should be noted that the first groove 11 and the second groove 12 can also be set to other shapes of grooves. The utility model is not limited in this regard. The weight-reducing groove structure can achieve the effect of considering the structural strength and processing convenience.

[0044] In the embodiment, as shown in the drawings, Figure 5 The third surface 213 of the convex buckle 21 is connected with two guide inclined surfaces 211 on both sides of the third surface 213. The distance between the two guide inclined surfaces 211 gradually increases from the end close to the buckle plate 1 to the end away from the buckle plate 1. The limit step 212 is arranged at the end of the guide inclined surface 211 away from the third surface 213. Figure 3 The inner wall of the clamping groove 14 is provided with a clamping part 141. The clamping part 141 can be moved along the guide inclined surface 211 to the position clamped with the limit step 212 to achieve clamping and fixing.

[0045] In the embodiment, as shown in the drawings,Figure 2 As shown, the side plate 2 away from the side of the wire passage 10 is provided with an explosion-proof limiting structure 25 and an explosion-proof matching structure 26, and the explosion-proof matching structure 26 of one of the two adjacent drag chain links can be inserted into the explosion-proof limiting structure 25 of the other for limiting and the two can also rotate relative to each other.

[0046] Specifically, the first main shaft 27 is arranged on the inner side of the side plate 2 close to the wire passage 10, and the second main shaft 28 is arranged on the outer side of the side plate 2 away from the wire passage 10, and the second main shaft 28 of one of the two adjacent drag chain links can be connected with the first main shaft 27 of the other in a plug-in manner, and the two can rotate relative to each other. In order to prevent the side plates 2 of the two adjacent drag chain links from separating, the explosion-proof matching structure 26 of one drag chain link is inserted into the inner side of the explosion-proof limiting structure 25 of the other drag chain link, and the inner side of the explosion-proof limiting structure 25 here is the side close to the wire passage 10. The explosion-proof limiting structure 25 can limit the explosion-proof matching structure 26 from coming out along the axis direction of the first main shaft 27 or the second main shaft 28, but will not limit the rotation of the explosion-proof matching structure 26 around the axis, so as not to hinder the rotation between the two adjacent drag chain links.

[0047] As shown in the figure, Figure 1 The plurality of drag chain links connected in sequence in the embodiment form a drag chain.

[0048] Embodiment two

[0049] The embodiment provides a drag chain link, as shown in the figure, Figures 6 to 12 The difference between the embodiment and the embodiment one is that, as shown in the figure, Figure 12 The convex buckle 21 of the embodiment is recessed on the side close to the buckle plate 1 to form an assembly groove 23, and the elastic member 24 is installed in the assembly groove 23. As shown in the figures, Figure 10 and Figure 11 The convex limiting structure 22 includes a plug-in part 221 and a pressing part 222, one end of the plug-in part 221 is located in the assembly groove 23 and connected with the elastic member 24, and the other end of the plug-in part 221 is connected with the pressing part 222. When the pressing part 222 is pressed, the elastic member 24 can be compressed and the plug-in part 221 can be retracted into the assembly groove 23. As shown in the figures, Figure 8 and Figure 9 The groove bottom of the clamping groove 14 of the embodiment is recessed to form a third groove 16, one end of the groove bottom of the third groove 16 communicates with the plug-in hole 15, and the other end extends to the end face of the buckle plate 1 to form a first opening, that is, the two ends of the groove bottom of the third groove 16 respectively communicate with the plug-in hole 15 and the end face of the buckle plate 1.

[0050] During installation, the plug-in part 221 can be plugged into the plug-in hole 15, and the end of the pressing part 222 away from the plug-in part 221 protrudes out of the plug-in hole 15.

[0051] When disassembly is needed, the pressing portion 222 is in the pressing state, so that the plug-in portion 221 moves and shrinks into the assembly groove 23, and the plug-in portion 221 can be completely separated from the plug-in hole 15; at the same time, the pressing portion 222 moves towards the convex buckle 21, and when the end of the pressing portion 222 away from the plug-in portion 221 corresponds to the position of the third groove 16, by applying an external force, the end of the pressing portion 222 away from the plug-in portion 221 can be plugged into the third groove 16, and the pressing portion 222 can continue to slide along the third groove 16 and slide out of the first opening, and the clamping portion 141 of the clamping groove 14 can be separated from the limiting step of the convex buckle 21 by relative sliding. That is, by pressing the pressing portion 222, the buckle plate 1 and the side plate 2 can be separated by sliding.

[0052] In the embodiment, the cross-sectional size of the pressing portion 222 is smaller than the cross-sectional size of the plug-in portion 221, and the cross-sectional size of the pressing portion 222 is matched with the size of the third groove 16; so as to ensure that the plug-in portion 221 can be limited by plugging into the plug-in hole 15, and the pressing portion 222 can be pressed and slide out of the third groove 16.

[0053] In the embodiment, as shown in the figure, Figure 9 the extension direction of the third groove 16 is consistent with the extension direction of the clamping groove 14. That is, the sliding direction of the pressing portion 222 along the third groove 16 is parallel to the sliding direction of the convex buckle 21 along the clamping groove 14, so as to ensure that the convex buckle 21 slides along the clamping groove 14 while the pressing portion 222 slides along the third groove 16.

[0054] In the embodiment, the elastic member 24 is a spring or a compression spring, which can be specifically selected by those skilled in the art.

[0055] When the buckle plate 1 and the side plate 2 are assembled, the clamping groove 14 of the buckle plate 1 is clamped to the limiting step of the convex buckle 21 of the side plate 2 in the vertical direction, and the protruding limiting structure 22 on the side plate 2 is inserted into the plug-in hole 15 of the buckle plate 1 to limit the movement of the buckle plate 1 and the side plate 2 in the vertical direction and the horizontal direction, so as to ensure the connection and fixing effect of the two, and avoid falling off. When the buckle plate 1 and the side plate 2 need to be disassembled, the plug-in portion 221 moves downward and is separated from the plug-in hole 15 by pressing the pressing portion 222, at this time, the pressing portion 222 can slide horizontally along the third groove 16 and slide out of the first opening, and the limiting step of the convex buckle 21 can slide horizontally along the clamping portion 141 of the clamping groove 14 and slide out of the second opening; so as to realize the disassembly and separation of the buckle plate 1 and the side plate 2.

[0056] And in order to facilitate the realization of the pressing part 222 away from the plug-in part 221 one end plug-in third groove 16 sliding operation, can be in the pressing part 222 away from the plug-in part 221 one end and the initial contact position of the third groove 16 setting guide structure, such as inclined plane or arc structure.

[0057] The buckle plate 1 and the side plate 2 of the embodiment can be fixed by clamping to ensure firm connection and avoid shaking or unstable connection; and the buckle plate 1 and the side plate 2 can be separated by pressing the pressing part 222 and then sliding, which can avoid damaging the clamping structure and is simple and efficient.

[0058] The principle and implementation mode of the utility model are described by applying specific examples in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, according to the idea of the utility model, the specific implementation mode and application range will be changed by the general technical personnel in the field. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A cable chain link, comprising a buckle plate and side plates, wherein two parallel buckle plates and two parallel side plates form a cable passage, characterized in that: Both ends of the buckle plate are detachably connected to the corresponding side plates; Both ends of the buckle plate near the wire passage are provided with slots, and a through insertion hole is provided between the bottom of the slot and the side of the buckle plate away from the wire passage. The side plate is provided with a protruding buckle on the side near the wire passage, and the protruding buckle is provided with a protruding limiting structure on the side near the buckle plate; the protruding buckle can be adapted to engage with the slot, and the protruding limiting structure can be adapted to engage with the insertion hole. A first groove is provided on one side of the buckle plate, and a second groove is provided at the bottom of the first groove, wherein the opening size of the second groove is smaller than the bottom size of the first groove.

2. The cable chain link according to claim 1, characterized in that: Both the first groove and the second groove are waist-shaped grooves; the groove opening length of the second groove is less than the groove bottom length of the first groove, and / or the groove opening width of the second groove is less than the groove bottom width of the first groove; a stepped structure is formed between the first groove and the second groove.

3. The cable chain link according to claim 1, characterized in that: The buckle has an assembly groove on the side near the buckle plate, and an elastic element is installed in the assembly groove; The protruding limiting structure includes a plug-in part and a pressing part. One end of the plug-in part is connected to the elastic element, and the other end is connected to the pressing part. A third groove is provided at the bottom of the slot. When the pressing part is in a non-pressed state, the plug-in part is adapted to be plugged into the plug-in hole, and the end of the pressing part away from the plug-in part extends out of the plug-in hole; When the pressing part is in the pressing state, the insertion part is disengaged from the insertion hole, the pressing part can move towards the protrusion, the end of the pressing part away from the insertion part can be inserted into the third groove and can slide along the third groove, and the protrusion can slide away from the slot.

4. The cable chain link according to claim 3, characterized in that: One end of the third groove is connected to the insertion hole, and the other end extends to the end face of the buckle to form a first opening. The pressing part can slide along the third groove and slide out from the first opening. One end of the slot extends to the end face of the buckle plate to form a second opening; and the extending direction of the slot is the same as the extending direction of the third groove.

5. The cable chain link according to claim 1, characterized in that: The buckle has guide slopes on both sides, and the distance between the two guide slopes gradually increases from the end closer to the buckle plate to the end farther away from the buckle plate. The guide slope is provided with a limit step at the end away from the buckle plate. The inner wall of the slot is provided with a locking part on both sides, and the locking part can be locked with the limiting step under the guidance of the guide slope.

6. The cable chain link according to claim 3, characterized in that: The cross-sectional dimension of the pressing part is smaller than the cross-sectional dimension of the insertion part.

7. The cable chain link according to claim 1, characterized in that: Both the first groove and the second groove are located on the side of the buckle plate away from the wire passage.

8. The cable chain link according to claim 3, characterized in that: The elastic element is a spring or a compression spring.

9. The cable chain link according to claim 1, characterized in that: The side plate away from the cable passage is provided with an explosion-proof limiting structure and an explosion-proof mating structure. The explosion-proof mating structure of one of two adjacent cable chain sections can be inserted into the explosion-proof limiting structure of the other for limiting and can rotate relative to each other.

10. A cable chain, characterized in that: It includes multiple cable chain sections as described in any one of claims 1-9, connected end to end.

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