CN215146182U

CN215146182U - Positioning and fastening clamp for grid assembly

Info

Publication number: CN215146182U
Application number: CN202120838170.2U
Authority: CN
Inventors: 钱飞; 郑波; 徐天鸿; 蔡磊磊; 严琪波; 周勇
Original assignee: Ningbo Kdpr Tool Technology Co ltd
Current assignee: Ningbo Kdpr Tool Technology Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-12-14
Anticipated expiration: 2031-04-22

Abstract

The utility model provides a location fastening anchor clamps for framework equipment belongs to anchor clamps technical field, include: the bottom plate is of a rectangular plate-shaped structure and is provided with four side edges; the number of the guide rail seats is four, and the four guide rail seats are respectively connected with four edges of the bottom plate; the positioning pins are arranged on the bottom plate, and each positioning pin penetrates through a space of the grid when the grid is installed on the bottom plate; the clamping bases are four in number, the four clamping bases are respectively movably connected with the four guide rail bases, and clamping parts used for clamping the grillwork are formed between the guide rail bases and the side edges. The utility model has the advantages that: a jig specially used for grid assembly is provided, which can fix a grid on a bottom plate through a positioning pin and then support the side of the grid through a clamping seat, so that the grid is positioned and fastened on a base of the jig.

Description

Positioning and fastening clamp for grid assembly

Technical Field

The utility model belongs to the technical field of anchor clamps, a location fastening anchor clamps for framework equipment is related to.

Background

At present, fuel grids are used in nuclear power generation devices, and the structure of the fuel element grids is complex. Generally, a grid is formed by inserting and assembling a plurality of grid straps, and then the assembled grid needs to be fixed by a fixing clamp and placed in a welding chamber for welding.

Due to the special shape of the fuel grillwork, the specific shape and structure of the fuel grillwork are similar to a spacer grillwork with mixing performance used in a nuclear fuel assembly disclosed in the Chinese patent with the application number of CN201220709643.X or similar to a nuclear fuel assembly spacer grillwork based on 3D printing disclosed in the Chinese patent with the application number of CN202010867830.X, and the fuel grillwork with the shape and structure is very troublesome in welding.

In brief, the grid needs to be assembled and then welded, and during the assembly process, because the fuel grid is formed by assembling a plurality of straps, the straps are very troublesome during the assembly process, and the positioning and fastening clamps are lacked during the assembly process, the assembly process is not only troublesome, but also has low efficiency, so that the improvement space is provided.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a location fastening jig for framework equipment.

The purpose of the utility model can be realized by the following technical proposal: a spacer fastening clip for grid assembly, comprising:

the bottom plate is of a rectangular plate-shaped structure and is provided with four side edges;

the number of the guide rail seats is four, and the four guide rail seats are respectively connected with four edges of the bottom plate;

the positioning pins are arranged on the bottom plate, and each positioning pin penetrates through a space of the grid when the grid is installed on the bottom plate;

the clamping bases are four in number, the four clamping bases are respectively movably connected with the four guide rail bases, and clamping parts used for clamping the grillwork are formed between the guide rail bases and the side edges.

Preferably, the guide rail seat is fixedly provided with a quick clamp, and the quick clamp is connected with the clamping seat and can push the clamping seat to move.

Preferably, the two ends of the clamping seat are provided with pushing blocks used for being connected with the grids in an abutting mode.

Preferably, the bottom plate is provided with a strip-shaped protruding portion and two recessed portions, and the strip-shaped protruding portion is located between the two recessed portions.

Preferably, each of the positioning pins is divided into three groups and is respectively located on the strip-shaped protruding portion and the two recessed portions.

Preferably, the side edge is provided with a supporting edge which extends outwards and is used for abutting against and connecting with the bottom of the grid frame.

Compared with the prior art, the beneficial effects of the utility model are that:

1. a jig specially used for grid assembly is provided, which can fix a grid on a bottom plate through a positioning pin and then support the side of the grid through a clamping seat, so that the grid is positioned and fastened on a base of the jig.

2. The structure that adopts a plurality of locating pins is fixed a position the check frame, and each locating pin inserts in each blank that corresponds in the check frame for the check frame is more stable, thereby restricts the check frame and warp or rock, and in addition, this kind of mode of fixing a position through a plurality of locating pins can also pass through the locating pin and support the check frame, makes more firm of check frame.

3. When the grid is arranged on the bottom plate from top to bottom, the positioning pins on the strip-shaped protruding portions are firstly inserted into the spaces of the grid, so that the primary positioning effect is achieved, the positioning pins on the concave portions can be smoothly inserted into the spaces of the grid along with the downward movement of the grid, and all the positioning pins can be smoothly inserted into corresponding positions at one time.

Drawings

Fig. 1 is a schematic structural view of the positioning and fastening fixture of the present invention.

Fig. 2 is a side view of the positioning and fastening clamp of the present invention.

In the figure, 100, the base plate; 110. a side edge; 120. a bar-shaped protrusion; 130. a recessed portion; 140. a support rim; 200. a guide rail seat; 210. quick clamping; 300. positioning pins; 400. a clamping seat; 410. a push block; 500. a clamping portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, a spacer fastening jig for grid assembly includes: a base plate 100, a rail seat 200, a positioning pin 300, and a clamping seat 400, which can be used for the assembly of a grid.

A base plate 100 having a rectangular plate-shaped structure, the base plate 100 being provided with four sides 110; the base plate 100 has four sides 110 due to the square structure, and the lattice can cover the base plate 100.

Four guide rail seats 200, the four guide rail seats 200 being respectively connected to four sides of the base plate 100; the guide rail base 200 is an elongated plate structure and has a guide rail.

A plurality of positioning pins 300, wherein the positioning pins 300 are arranged on the bottom plate 100, and each positioning pin 300 is arranged in a space of the grid when the grid is installed on the bottom plate 100; the positioning pin 300 can perform a positioning effect on the grid, so that the grid cannot be deformed or moved.

Four holders 400, four holders 400 being movably connected to the four rail holders 200, respectively, and a holder 500 for holding the grids being formed between the rail holders 200 and the side 110.

Preferably, the four holders 400 can be moved from the periphery of the base plate 100 toward the base plate 100 to clamp the lower ends of the four sides of the lattice, so that the fastening effect can be achieved.

It should be noted that, in the prior art, there may be a fixture for positioning the grid and clamping the grid by using a clamping structure, but the fixture positions the grid by using grid-shaped slots, that is, the lower end of the grid can be inserted into the slots, such a positioning structure has certain defects, and the grid can still deform or shake due to the shallower slots, thereby affecting the assembly effect and efficiency.

In the present embodiment, the structure of the plurality of positioning pins 300 is used to position the grid, and each positioning pin 300 is inserted into each corresponding space in the grid, so that the grid is more stable, thereby limiting the deformation or shaking of the grid, and in addition, the grid can be supported by the positioning pins 300 in the manner of positioning through the plurality of positioning pins 300, so that the grid is more firm.

As shown in fig. 1 and fig. 2, in addition to the above embodiments, the rail base 200 is fixedly provided with a quick clamp 210, and the quick clamp 210 is connected to the holder 400 and can push the holder 400 to move.

Preferably, the quick clamp 210 is an existing tool, and the quick clamp 210 has a push rod, which can be moved forward or backward by pulling the handle of the quick clamp 210, and the push rod is connected to the holder 400, and when the handle of the quick clamp 210 is pressed, the holder 400 can be pushed to move and the holder 400 and the side 110 can be clamped to the side of the grid.

As shown in fig. 1 and 2, in addition to the above embodiments, two ends of the holder 400 are provided with pushing blocks 410 for abutting against the shelves. Preferably, the holder 400 is similar to a [ -shaped structure or a U-shaped structure, so that it has two push blocks 410, and the two push blocks 410 can be respectively connected with the left and right ends of the side surface of the lattice in an interference manner, thereby better and more stably holding the lattice.

As shown in fig. 1 and 2, in the above embodiment, the bottom plate 100 is provided with a strip-shaped protrusion 120 and two recesses 130, and the strip-shaped protrusion 120 is located between the two recesses 130. It is worth noting here that in an actual configuration, the upper surface of the base plate 100 is not smooth, but forms a stripe-shaped protrusion 120 and two recesses 130.

As shown in fig. 1 and 2, on the basis of the above embodiment, the positioning pins 300 are divided into three groups and respectively located on the strip-shaped convex portion 120 and the two concave portions 130.

Preferably, a height difference is generated between the positioning pin 300 located in the recess 130 and the positioning pin 300 located in the bar-shaped protrusion 120 through the recess 130 and the bar-shaped protrusion 120, when the grid is on the bottom plate 100 from top to bottom, the positioning pin 300 located on the bar-shaped protrusion 120 is firstly inserted into the space of the grid, so as to achieve a primary positioning effect, and as the grid continues to move downwards, the positioning pin 300 on the recess 130 can be smoothly inserted into the space of the grid, so that all the positioning pins 300 can be smoothly inserted into corresponding positions at one time.

As shown in fig. 1 and 2, in the above embodiment, the side edge 110 is provided with a supporting edge 140 extending outward and abutting against the bottom of the shelf. Preferably, since the grid is covered on the bottom plate 100, the lower end of the grid needs to be supported, and when the grid is placed on the bottom plate 100, the lower end of the grid is just in interference connection with the supporting edge 140 so as to facilitate the grid positioning and fastening.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Claims

1. A spacer fastening clip for grid assembly, comprising:

2. A spacer fastening clip for grid assembly as claimed in claim 1, wherein: the guide rail seat is fixedly provided with a quick clamp, and the quick clamp is connected with the clamping seat and can push the clamping seat to move.

3. A spacer fastening clip for grid assembly as claimed in claim 2, wherein: and pushing blocks used for being in abutting connection with the grids are arranged at the two ends of the clamping seat.

4. A spacer fastening clip for grid assembly as claimed in claim 1, wherein: the bottom plate is provided with bar bellying and two depressed parts, the bar bellying is located two between the depressed part.

5. A spacer fastening clip for grid assembly as claimed in claim 4, wherein: each locating pin divide into three groups and is located respectively on bar bellying and two the depressed part.

6. A spacer fastening clip for grid assembly as claimed in claim 2, wherein: the side is provided with the support border that extends to the outside and be used for contradicting with the grid bottom and be connected.