CN217814423U

CN217814423U - Pull rod fastening assembly and electrolytic cell

Info

Publication number: CN217814423U
Application number: CN202221564609.8U
Authority: CN
Inventors: 范强强
Original assignee: Sunshine Hydrogen Energy Technology Co Ltd
Current assignee: Sunshine Hydrogen Energy Technology Co Ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-11-15
Anticipated expiration: 2032-06-21

Abstract

The utility model discloses a pull rod fastening component and an electrolytic cell, which comprises two screw rods and a middle locking nut, wherein one end of each screw rod is a bolt head end, the other end of each screw rod is a threaded rod end, and the threaded rod ends of the two screw rods are coaxial and are arranged oppositely; the two ends of the middle locking nut are respectively in threaded fit with the threaded rod ends of the two screws, and the middle locking nut is rotated along the preset direction to drive the threaded rod ends of the two screws to be close to each other, so that the bolt head ends of the two screws are used for tensioning and fixing the two oppositely-arranged end pressing plates of the component to be tensioned. Compared with the traditional whole pull rod two-end fastening mode, the pull rod fastening component only needs to rotate the middle locking nut, thereby greatly saving the fastening workload; in addition, the stress time of the bolt head ends of the two screw rods is more synchronous, and then the two ends of the part to be tensioned can be fastened more symmetrically.

Description

Pull rod fastening assembly and electrolytic cell

Technical Field

The utility model relates to a pull rod fastening technical field, more specifically say, relate to a pull rod fastening components and electrolysis trough.

Background

The existing pull rod fastening mode mostly adopts threads at two ends of the pull rod, and the tightening and locking of a part to be tightened are realized by installing locking nuts at two ends of the pull rod. Take taut locking of the electrolysis trough of vertical equipment as an example, specifically, pile up end clamp plate, end polar plate and about polar plate and interior material etc. earlier, during the actual vertical equipment, the pull rod is worn to the other end from electrolysis trough one end, and owing to vertical installation after nut and the pull rod pretension of lower extreme, generally no longer fasten, only fasten the upper end nut, adopt this kind of pull rod fastening mode, hardly reach both ends symmetry after the both ends fastening on the one hand, on the other hand needs both ends fastening operation, and work load is big.

In summary, how to solve the problem that the two ends of the pull rod fastening structure are difficult to be fastened symmetrically and the workload is large has become a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a pull rod fastening assembly and electrolysis trough to solve pull rod fastening structure and hardly realize both ends fastening symmetry and the big problem of work load.

In order to achieve the above object, the utility model provides a following technical scheme:

a tie rod fastening assembly comprising:

one end of each screw is a bolt head end, the other end of each screw is a threaded rod end, and the threaded rod ends of the two screws are coaxial and arranged oppositely;

the two ends of the middle locking nut are respectively matched with the threaded rod ends of the two screw rods in a threaded manner, the middle locking nut can drive the two threaded rod ends of the two screw rods to be close to each other along the preset direction, and therefore the two end pressing plates of the two opposite arrangements of the parts to be tensioned are tensioned and fixed by the bolt head ends of the two screw rods.

Optionally, the thread rotation direction of two said threaded rod ends arranged coaxially and oppositely is opposite.

Optionally, the pitch of two of said threaded rod ends arranged coaxially and oppositely is the same.

Optionally, the thread rotation direction of two said threaded rod ends arranged coaxially and oppositely is the same and the thread pitch is different.

Optionally, an insulating sleeve is further sleeved on the outer side of the screw rod, one end of the insulating sleeve, facing the head end of the bolt, extends to the outer side of the end pressure plate, and one end of the insulating sleeve, facing the rod end of the threaded rod, does not cover a threaded section of the rod end of the threaded rod, which is used for being matched with the middle locking nut.

Optionally, an elastic component is further sleeved on the screw rod, and the elastic component is clamped between the bolt head end and the end pressing plate.

Optionally, the elastic assembly comprises a guide sleeve, an elastic piece and a guide ring, the guide sleeve is sleeved on the screw rod and is attached to the inner end face of the head end of the bolt, and the elastic piece and the guide ring are sequentially sleeved on the guide sleeve.

Optionally, the elastic member is a disc spring.

Optionally, an insulating washer is further sleeved on the screw, and the insulating washer is located between the elastic assembly and the end pressing plate.

Optionally, a first pair of middle portions is arranged on the inner end surface of the bolt head end, and a second pair of middle portions matched with the first pair of middle portions is arranged on one surface, corresponding to the fit of the inner end surface of the bolt head end, of the guide sleeve.

Optionally, the outer surface of the middle locking nut is further provided with an insulating layer.

Compared with the introduction content of the background technology, the pull rod fastening assembly comprises two screw rods and a middle locking nut, wherein one end of each screw rod is a bolt head end, the other end of each screw rod is a threaded rod end, and the threaded rod ends of the two screw rods are coaxial and are arranged oppositely; the two ends of the middle locking nut are respectively in threaded fit with the threaded rod ends of the two screws, and the middle locking nut is rotated along the preset direction to drive the threaded rod ends of the two screws to be close to each other, so that the bolt head ends of the two screws are used for tensioning and fixing the two oppositely-arranged end pressing plates of the component to be tensioned. In the practical application process, the threaded rod ends of the two screws respectively penetrate through the outer end faces of the two oppositely-arranged end pressing plates of the component to be tensioned, the threaded rod ends of the two screws are coaxially and oppositely arranged, then the two ends of the middle locking nut are respectively in threaded fit with the threaded rod ends of the two screws, the threaded rod ends of the two screws can be driven to be close to each other by rotating the middle locking nut along the preset direction, and then the bolt head ends of the two screws tension the two oppositely-arranged end pressing plates of the component to be tensioned and fixed, compared with the traditional whole pull rod two-end fastening mode, the middle locking nut only needs to be rotated, and the fastening workload is greatly saved; in addition, the outer end surfaces of two oppositely arranged end pressure plates of the component to be tensioned are both bolt head ends, the two ends are more symmetrical and beautiful in appearance after being fastened, the fastening force of the two screws is from the middle locking nut, so that the stress time of the bolt head ends of the two screws is more synchronous, and the two ends of the component to be tensioned can be fastened more symmetrically; in addition, compare in the taut structure of traditional pull rod, the length of screw rod is divided into two, and convenient processing preparation more, and can material saving, reduction in manufacturing cost.

In addition, the utility model also provides an electrolytic cell, including two mutual disposition end clamp plates with press from both sides and locate two the electrolytic cell main part between the end clamp plate, two the end clamp plate passes through the taut fixed of pull rod fastening component, pull rod fastening component is the pull rod fastening component that any above-mentioned scheme described. Since the above-mentioned tension rod fastening assembly has the above-mentioned technical effects, the electrolytic cell having the tension rod fastening assembly should also have corresponding technical effects, which are not described herein again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an external structural schematic view of a tie rod fastening assembly according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural view of a tie rod fastening assembly provided by an embodiment of the present invention;

fig. 3 is a schematic end-side partial sectional structural view of a tie rod fastening assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a screw provided by an embodiment of the present invention;

fig. 5 is a schematic structural view of the tension rod fastening assembly applied to an electrolytic cell according to an embodiment of the present invention.

Wherein, in fig. 1-5:

a screw 1, a bolt head end 11, a first pair of middle portions 110, a threaded rod end 12;

a middle lock nut 2 and an insulating layer 21;

an end pressing plate 3;

an insulating sleeve 4;

elastic component 5, guide sleeve 51, second pair of middle parts 510, elastic piece 52 and guide ring 53;

an insulating washer 6;

an electrolytic cell main body 7.

Detailed Description

The core of the utility model is to provide a pull rod fastening component and an electrolytic cell, which solve the problem that the pull rod fastening structure hardly realizes the symmetry of fastening at both ends and has large workload.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, fig. 1 is a schematic external structural view of a pull rod fastening assembly according to an embodiment of the present invention; fig. 2 is a schematic cross-sectional structural view of a tie rod fastening assembly according to an embodiment of the present invention; fig. 3 is a schematic end-side partial sectional structural view of a tie rod fastening assembly according to an embodiment of the present invention; fig. 4 is a schematic structural view of a screw provided by an embodiment of the present invention; fig. 5 is a schematic structural view of the tension rod fastening assembly applied to an electrolytic cell according to an embodiment of the present invention.

The utility model provides a pull rod fastening assembly, referring to fig. 1-5, comprising two screw rods 1 and a middle locking nut 2, wherein one end of the screw rod 1 is a bolt head end 11, the other end is a threaded rod end 12, and the threaded rod ends 12 of the two screw rods 1 are coaxial and are arranged oppositely; the two ends of the middle locking nut 2 are respectively in threaded fit with the threaded rod ends 12 of the two screws 1, and the middle locking nut 2 is rotated along a preset direction (for example, clockwise or counterclockwise under the view angle of fig. 1) to drive the threaded rod ends 12 of the two screws 1 to approach each other, so that the bolt head ends 11 of the two screws 1 pull up and fix the two oppositely-arranged end pressure plates 3 of the component to be pulled up.

In the practical application process, the threaded rod ends 12 of the two screw rods 1 penetrate through the outer end faces of the two end pressing plates 3 which are arranged oppositely of the component to be tensioned respectively, the threaded rod ends 12 of the two screw rods 1 are coaxial and arranged oppositely, then the two ends of the middle locking nut 2 are in threaded fit with the threaded rod ends 12 of the two screw rods 1 respectively, the threaded rod ends 12 of the two screw rods 1 can be driven to approach each other by rotating the middle locking nut 2 along the preset direction, and then the bolt head ends 11 of the two screw rods 1 can tension and fix the two end pressing plates 3 which are arranged oppositely of the component to be tensioned, compared with the traditional whole pull rod two-end fastening mode, only the middle locking nut 2 needs to be rotated, and the fastening workload is greatly saved; in addition, the outer end surfaces of the two oppositely arranged end pressure plates 3 of the part to be tensioned are both bolt head ends 11, the two ends are more symmetrical and beautiful in appearance after being fastened, and the fastening force of the two screw rods 1 is from the middle locking nut 2, so that the stress time of the bolt head ends 11 of the two screw rods 1 is more synchronous, and the two ends of the part to be tensioned are more symmetrical in fastening; in addition, compare in the taut structure of traditional pull rod, the length of screw rod is divided into two, and convenient processing preparation more, and can material saving, reduction in manufacturing cost.

It should be noted that the middle locking nut 2 may be specifically designed such that the outer profile has a shape matching with a wrench, for example, the cross section of the outer profile is a hexagonal structure; or be provided with the poker rod jack on middle lock nut 2, through inserting poker rod can be more light convenient rotate middle lock nut 2, in the practical application process, can select corresponding structural style or combination according to the actual demand, do not do more specific restriction here.

In addition, the material of screw rod is preferably metal material in general, for example, iron or steel, also can select the non-metallic material that has certain intensity, for example, for the part that waits to tighten for miniaturely, the material of screw rod also can adopt the nylon material.

In some embodiments, the thread rotation directions of the two threaded rod ends 12, which are coaxially and oppositely disposed, are preferably designed to be opposite. Since the two ends of the middle lock nut 2 are respectively in threaded fit with the threaded rod ends 12 of the two screws 1, the rotation directions of the threads corresponding to the two ends of the middle lock nut 2 and the two threaded rod ends 12 are also opposite. Design like this for middle lock nut 2 is followed to predetermine the direction rotation and can be driven two screw rods 1 and all received to middle taut effort, and lock nut 2 motion in the middle of two screw rod 1's threaded rod end 12 all moves, and locking is more efficient.

In a further embodiment, the thread pitches of the two threaded rod ends 12 arranged coaxially and opposite to each other are preferably designed to be the same. Therefore, when the middle locking nut 2 rotates along the preset direction, the two screw rods 1 are stressed the same, and the uniformity and symmetry of tensioning at two ends of the part to be tensioned are improved.

It can be understood, of course, that the above-mentioned manner that the rotation directions of the two threaded rod ends 12 that are coaxially and oppositely disposed are opposite is only an example of the embodiment of the present invention, in which the middle lock nut 2 has a structural form that drives the threaded rod ends 12 of the two screws 1 to move close to each other, in the practical application process, the two threaded rod ends 12 that are coaxially and oppositely disposed may also be designed to have the same rotation directions of the threads and different pitches, because the two ends of the middle lock nut 2 are respectively in threaded fit with the threaded rod ends 12 of the two screws 1, at this moment, the two ends of the middle lock nut 2 correspond to the thread rotation directions that are matched with the two threaded rod ends 12, which are also the same and different pitches, and because the thread pitches of the two threaded rod ends 12 are different, when the middle lock nut 2 rotates along the preset direction, the two threaded rod ends 12 can move close to each other. In the practical application process, the corresponding structural form may be selected according to specific requirements, which is not limited herein in more detail.

In some specific embodiments, referring to fig. 2 and 3, the screw rod 1 is further sleeved with an insulation sleeve 4, one end of the insulation sleeve 4 facing the head end 11 of the bolt extends to the outer side of the end pressure plate 3, and one end of the insulation sleeve 4 facing the threaded rod end 12 is not covered with the threaded section of the threaded rod end 12 for cooperating with the intermediate lock nut 2. The insulating sleeve 4 is designed so that the tie rod fastening assembly can be applied to the tightening fixation of some electrical components, for example, with reference to fig. 5, two end clamps 3 of the cell arranged opposite each other. The insulation sleeve 4 can be designed to be integrated with the screw 1, for example, to form a composite insulation layer; the structure can also be designed into a split type installation structure, such as a mode of sleeving an insulating sleeve, and in the practical application process, the corresponding structural form can be selected according to the practical requirement, which is not more specifically limited herein.

In some specific embodiments, referring to fig. 1 and 2, the screw rod 1 is further sleeved with an elastic element 5, and the elastic element 5 is clamped between the bolt head end 11 and the end pressing plate 3. By arranging the elastic assembly 5 between the bolt head end 11 and the end pressure plate 3, the component to be tensioned has a certain expansion and contraction space after being fastened, such as the displacement of expansion and contraction, and the basic tensioning and fixing requirements of the component to be tensioned are not influenced.

In a further embodiment, the elastic component 5 may specifically include a guide sleeve 51, an elastic element 52 and a guide ring 53, wherein the guide sleeve 51 is sleeved on the screw rod 1 and is attached to the inner end surface of the bolt head end 11, and the elastic element 52 and the guide ring 53 are sequentially sleeved on the guide sleeve 51. Through the design of the guide sleeve 51, the sleeving effect of the elastic part 52 and the guide ring 53 is better, and the sleeving gap is reduced as much as possible without considering the rod diameter thickening of the screw 1, for example, when the rod diameter of the screw 1 is 5mm, the tensioning force requirement can be met, but the inner diameter of the corresponding elastic part 52 is 8mm, and if the structural form of the guide sleeve 51, the elastic part 52 and the guide ring 53 is not adopted, the rod diameter thickening of the screw 1 needs to be considered for reducing the sleeving gap of the elastic part 52.

It should be noted that the elastic member 52 may be a disc spring, because the disc spring has better elastic strength and can better adapt to the tightening requirement of the electrical equipment. It is understood that the manner of using the disc spring is merely an example of the structure form of the elastic member 52 in the embodiment of the present invention, and in the practical application process, other corresponding elastic structures may be selected according to practical requirements, which is not limited herein in more detail.

In some more specific embodiments, referring to fig. 1, 2 and 5, the screw rod 1 may further be sleeved with an insulating washer 6, and the insulating washer 6 is located between the elastic component 5 and the end pressure plate 3. The insulating effect between the elastic component 5 and the end pressing plate 3 can be better ensured by designing the insulating washer 6, so that the pull rod fastening component can be better suitable for tensioning and fixing of an electric component.

In some specific embodiments, referring to fig. 3, since a certain sleeving gap is inevitably formed in the sleeving installation of the guide sleeve 51 and the screw rod 1, in order to avoid the deviation of the centers of the guide sleeve 51 and the screw rod 1 after the sleeving, the inner end surface of the bolt head end 11 may be further provided with a first pair of middle portions 110, and a second pair of middle portions 510 corresponding to the surfaces of the guide sleeve 51, which are attached to the inner end surfaces of the bolt head end 11, is provided with the first pair of middle portions 110. It should be noted that the specific structural form of the first pair of middle portions 110 may be a tapered step surface formed on the inner end surface of the bolt head end 11, and the second pair of middle portions 510 may be a tapered surface adapted to the tapered step surface, and the two are matched to realize centering; in addition, the inner end face of the bolt head end 11 is provided with a conical step face, so that the difficulty in processing a right angle can be avoided, and the stability and the strength of connection between the bolt head end 11 and the rod part of the screw rod 1 can be improved.

In some more specific embodiments, referring to fig. 2, the outer surface of the intermediate lock nut 2 may also be provided with an insulating layer 21. The pull rod fastening assembly can be better adapted to an electrical component by designing the insulating layer 21, wherein the insulating layer 21 is arranged on the middle locking nut 2 in a wrapping mode after fastening, or an insulating layer is directly compounded on the surface of the middle locking nut 2, and in the actual application process, a corresponding arrangement mode can be selected according to actual requirements, without more specific limitation.

In addition, this pull rod fastening assembly can be applied to the electrolysis trough in whole water electrolysis hydrogen production field, is particularly suitable for the small-size electrolysis trough that does not need hydraulic tightening device, for this reason, the utility model also provides an electrolysis trough, include two relative arrangement's end clamp plate and press from both sides and locate two electrolysis trough main part between the end clamp plate, two the end clamp plate passes through the pull rod fastening assembly and strains fixedly, pull rod fastening assembly is the pull rod fastening assembly that any above-mentioned scheme described. Since the above-mentioned tension rod fastening assembly has the above-mentioned technical effects, the electrolytic cell having the tension rod fastening assembly should also have corresponding technical effects, which are not described herein again.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It should be understood that the use of "system," "device," "unit," and/or "module" herein is merely one way to distinguish between different components, elements, components, parts, or assemblies of different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. An element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Wherein in the description of the embodiments of the present application, "/" indicates an inclusive meaning, for example, a/B may indicate a or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

If used in this application, the flowcharts are intended to illustrate operations performed by the system according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the various steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to or removed from these processes.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. A tie rod fastening assembly, comprising:

the bolt comprises two screw rods (1), wherein one end of each screw rod (1) is a bolt head end (11), the other end of each screw rod (1) is a threaded rod end (12), and the threaded rod ends (12) of the two screw rods (1) are coaxial and are arranged oppositely;

middle lock nut (2), the both ends of middle lock nut (2) respectively with two screw rod end (12) screw-thread fit of screw rod (1), and rotate along predetermineeing the direction middle lock nut (2) can drive two screw rod end (12) of screw rod (1) are close to each other, so that two the bolt head end (11) of screw rod (1) are treated two mutual arrangement's of taut part end clamp plate (3) and are taut fixed.

2. The tie rod fastening assembly of claim 1, wherein the thread rotation directions of two of said threaded rod ends (12) arranged coaxially and oppositely are opposite.

3. A tie rod fastening assembly according to claim 2, wherein the pitch of the two threaded rod ends (12) arranged coaxially and oppositely is the same.

4. A tie rod fastening assembly according to claim 1, characterized in that the thread rotation direction of two of said threaded rod ends (12) arranged coaxially and oppositely is the same and the thread pitch is different.

5. The tie rod fastening assembly according to any one of claims 1 to 4, characterized in that an insulating sleeve (4) is further sleeved outside the screw rod (1), the insulating sleeve (4) extends to the outside of the end pressure plate (3) towards one end of the bolt head end (11), and one end of the insulating sleeve (4) towards the threaded rod end (12) is not covered with the threaded section of the threaded rod end (12) for cooperating with the intermediate lock nut (2).

6. The tie rod fastening assembly according to any one of claims 1 to 4, wherein an elastic assembly (5) is further sleeved on the screw rod (1), and the elastic assembly (5) is clamped between the bolt head end (11) and the end pressure plate (3).

7. The tie rod fastening assembly of claim 6, wherein the elastic assembly (5) comprises a guide sleeve (51), an elastic member (52) and a guide ring (53), the guide sleeve (51) is sleeved on the screw rod (1) and is arranged in fit with the inner end surface of the bolt head end (11), and the elastic member (52) and the guide ring (53) are sequentially sleeved on the guide sleeve (51).

8. The tie rod fastening assembly of claim 7 wherein the resilient member (52) is a belleville spring.

9. The tie rod fastening assembly according to claim 6, wherein an insulating washer (6) is further sleeved on the screw rod (1), and the insulating washer (6) is located between the elastic assembly (5) and the end pressure plate (3).

10. The tie rod fastening assembly according to claim 7, wherein a first pair of middle portions (110) is provided on the inner end surface of the bolt head end (11), and a second pair of middle portions (510) adapted to the first pair of middle portions (110) is provided on the guide sleeve (51) corresponding to the surface against which the inner end surface of the bolt head end (11) is fitted.

11. The tie rod fastening assembly according to any one of claims 1-4 and 7-10, characterized in that the outer surface of the intermediate lock nut (2) is further provided with an insulating layer (21).

12. An electrolysis cell comprising two oppositely arranged end pressure plates (3) and an electrolysis cell body (7) clamped between the two end pressure plates (3), the two end pressure plates (3) being fastened by a tie rod fastening assembly, characterized in that the tie rod fastening assembly is a tie rod fastening assembly according to any one of claims 1-11.