Equal-height screw anti-falling structure

Abstract

The utility model discloses an equal-height screw anti-falling structure which is characterized in that an annular groove is formed in an untapped rod part of an equal-height screw, the annular groove is located close to a thread part of the equal-height screw and used for fixing a C-shaped clamping ring, the equal-height screw and the C-shaped clamping ring are assembled together, and four springs are placed between a pressing plate and a pressing plate fixing plate and used for floating of the pressing plate; the four equal-height screws and the C-shaped clamping ring are locked together, when the equal-height screws loosen and the threaded rod parts of the equal-height screws are completely separated from the pressing plate fixing plate, the equal-height screws can be prevented from being separated from the pressing plate due to the fact that the attaching faces, provided with the C-shaped clamping ring, of the equal-height screws, the pressing plate and the pressing plate fixing plate are attached to the C-shaped clamping ring, and therefore the equal-height screws are prevented from falling off; the equal-height screw fixing device can effectively prevent the equal-height screw from falling off to cause product damage, is simple in structure and convenient to disassemble, can effectively solve the problem that the equal-height screw cannot be screwed out or is twisted off after screw glue is applied, and can also prevent the equal-height screw from being lost.

Description

Technical Field

[0001] The utility model relates to the technical field of testing fixtures, in particular to a structure for preventing equi-height screws from falling off. Background Art

[0002] At present, many of the floating designs in test fixtures and test equipment use equal height screws to design the floating amount. For the floating structures of fixtures and equipment that have requirements for installation space and installation position, most of the equal height screws are installed directly above the product surface. During use, due to the high frequency of use of fixtures and equipment, the equal height screws in the floating structure often become loose and cause the equal height screws to fall off. Once the equal height screws fall off, the product will be crushed or the fixture and equipment will be damaged.

[0003] The existing anti-falling structure of the equal height screws basically applies thread glue on the threads of the equal height screws. The thread glue takes a long time to dry. For the upper mold of the jig and equipment, the upper mold is often disassembled during debugging after assembly. During the repeated disassembly and assembly process, the thread glue will fail, and repeated application operations are required, which is complicated. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a structure for preventing screws from falling off.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a structure for preventing contour screws from falling off, comprising a pressing plate and a pressing plate fixing plate for fixing the pressing plate, the pressing plate fixing plate and the corners of the pressing plate are fixedly connected via contour screws, an untapped rod portion of the contour screw is provided with an annular groove, a C-shaped clamping ring is clamped inside the annular groove, a contour screw threaded column is provided at one end of the contour screw, a connecting hole for the contour screw to pass through is opened on the pressing plate, and a threaded hole threadedly connected to the contour screw threaded column is provided on the pressing plate fixing plate.

[0007] As a preferred technical solution of the utility model, springs are provided at each corner connection of the pressing plate and the pressing plate fixing plate.

[0008] As a preferred technical solution of the utility model, the corners of the pressure plate and the pressure plate fixing plate are both provided with mounting grooves matching the ends of the springs.

[0009] As a preferred technical solution of the utility model, the connecting hole is configured as a settlement hole.

[0010] As a preferred technical solution of the utility model, one side of the pressure plate fixing plate is provided with a receiving groove for receiving the C-shaped clamping ring.

[0011] As a preferred technical solution of the utility model, a strip groove is provided on one end of the contour screw away from the contour screw thread column.

[0012] The beneficial effects of the utility model are:

[0013] The C-shaped screw is fixed to the screw thread and the C-shaped screw is fixed to the screw thread. ... BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a structural schematic diagram of an anti-falling structure of equal-height screws of the utility model;

[0016] Figure 2 It is a schematic diagram of a connecting structure of a pressure plate and a contour screw of a contour screw anti-falling structure of the utility model;

[0017] Figure 3 It is a schematic diagram of a connection structure of a equi-height screw and a C-shaped clamp ring of an equi-height screw anti-falling structure of the utility model;

[0018] Figure 4 The utility model is a structural schematic diagram of a symmetrical screw anti-falling structure that uses symmetrical screws to fix a pressing plate and a pressing plate fixing plate.

[0019] In the figure: 1. pressure plate; 2. pressure plate fixing plate; 3. equal height screws; 4. annular groove; 5. C-type clamping ring; 6. equal height screw threaded column; 7. connecting hole; 8. threaded hole; 9. spring; 10. installation groove; 11. storage groove; 12. strip groove. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model is a structure for preventing the contour screws from falling off, comprising a pressing plate 1 and a pressing plate fixing plate 2 for fixing the pressing plate 1, the pressing plate fixing plate 2 and the corners of the pressing plate 1 are fixedly connected by contour screws 3, the untapped rod portion of the contour screw 3 is provided with an annular groove 4, the interior of the annular groove 4 is clamped with a C-shaped clamping ring 5, one end of the contour screw 3 is provided with a contour screw threaded column 6, the pressing plate 1 is provided with a connecting hole 7 for the contour screw 3 to pass through, the pressing plate fixing plate 2 is provided with a threaded hole 8 threadedly connected to the contour screw threaded column 6, an annular groove 4 is provided on the untapped rod portion of the contour screw 3, the annular groove 4 is located near the threaded portion of the contour screw 3, and is used to fix the C-shaped clamping ring 5, the contour screw 3 and the C-shaped clamping ring 5 are assembled together ... and the pressure The plate 1 is assembled with the pressure plate 1 fixing plate, and 4 springs 9 are placed between the pressure plate 1 and the pressure plate 1 fixing plate to float the pressure plate 1, and then locked together with 4 equal height screws 3 and C-type clamping rings 5. When the equal height screws 3 are loosened and the threaded rod part of the equal height screws 3 is completely separated from the pressure plate 1 fixing plate, since the equal height screws 3 are installed with C-type clamping rings 5, the fitting surface of the pressure plate 1 and the pressure plate 1 fixing plate fits with the C-type clamping ring 5, which can prevent the equal height screws 3 from separating from the pressure plate 1, thereby achieving the purpose of preventing the equal height screws 3 from falling off, and can effectively prevent the equal height screws 3 from falling off and causing damage to the product. The structure is simple and easy to disassemble, which can effectively solve the problem that the equal height screws 3 cannot be screwed out or the equal height screws 3 are screwed off after the screw glue is applied, and can also prevent the equal height screws 3 from being lost.

[0022] Among them, springs 9 are provided at each corner connection of the pressure plate 1 and the pressure plate fixing plate 2, and mounting grooves 10 matching the ends of the springs 9 are provided at the corners of the pressure plate 1 and the pressure plate fixing plate 2 for floating the pressure plate 1.

[0023] The connection hole 7 is configured as a sinking hole, and one side of the pressure plate fixing plate 2 is provided with a receiving groove 11 for receiving the C-shaped retaining ring 5 . The sinking hole can receive the equal height screw 3 , and the receiving groove 11 can receive the C-shaped retaining ring 5 .

[0024] A strip groove 12 is provided on one end of the contour screw 3 away from the contour screw thread column 6 to facilitate the rotation of the strip groove 12 .

[0025] When working, the anti-falling structure of the height screw 3 is provided with an annular groove 4 in the untapped rod of the height screw 3. The annular groove 4 is located near the threaded part of the height screw 3 and is used to fix the C-type clamping ring 5. The height screw 3 is assembled with the C-type clamping ring 5, and the pressure plate 1 is assembled with the pressure plate 1 fixing plate. Four springs 9 are placed between the pressure plate 1 and the pressure plate 1 fixing plate to make the pressure plate 1 float, and then locked together with the four height screws 3 and the C-type clamping ring 5. When the height screw 3 is loosened, the threaded rod of the height screw 3 When the contour screw 3 is completely separated from the pressure plate 1 fixing plate, since the contour screw 3 is installed with the C-shaped clamping ring 5, the fitting surface of the pressure plate 1 and the pressure plate 1 fixing plate fits with the C-shaped clamping ring 5, which can prevent the contour screw 3 from separating from the pressure plate 1, thereby achieving the purpose of preventing the contour screw 3 from falling off, and can effectively prevent the contour screw 3 from falling off and causing damage to the product. The structure is simple and easy to disassemble, which can effectively solve the problem that the contour screw 3 cannot be screwed out or the contour screw 3 is broken after the screw glue is applied, and can also prevent the contour screw 3 from being lost.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A structure for preventing screws from falling off at equal heights, comprising a pressing plate (1) and a pressing plate fixing plate (2) for fixing the pressing plate (1), characterized in that: The corners of the pressure plate fixing plate (2) and the pressure plate (1) are fixedly connected by equal height screws (3); the untapped rod portion of the equal height screw (3) is provided with an annular groove (4); the interior of the annular groove (4) is clamped with a C-shaped clamping ring (5); one end of the equal height screw (3) is provided with an equal height screw threaded column (6); the pressure plate (1) is provided with a connecting hole (7) for the equal height screw (3) to pass through; the pressure plate fixing plate (2) is provided with a threaded hole (8) threadedly connected to the equal height screw threaded column (6).

2. The anti-falling structure of equal height screws according to claim 1, characterized in that: Springs (9) are provided at each corner connection of the pressure plate (1) and the pressure plate fixing plate (2).

3. The anti-falling structure of equal height screws according to claim 2, characterized in that: The corners of the pressing plate (1) and the pressing plate fixing plate (2) are both provided with mounting grooves (10) matching the ends of the springs (9).

4. The anti-falling structure of equal height screws according to claim 1, characterized in that: The connecting hole (7) is configured as a sedimentation hole.

5. The anti-falling structure of equal height screws according to claim 4, characterized in that: A receiving groove (11) for receiving a C-shaped clamping ring (5) is provided on one side of the pressure plate fixing plate (2).

6. The anti-falling structure of equal height screws according to claim 1, characterized in that: A strip groove (12) is formed on one end of the height-adjusting screw (3) away from the height-adjusting screw thread column (6).

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