Civil air defense door accessory shaft clamp

Abstract

The utility model discloses a civil air defense door accessory shaft type clamp which comprises an outer cylinder and an inner cylinder, the inner cylinder is detachably inserted into the outer cylinder, the civil air defense door accessory shaft type clamp further comprises a guiding and limiting assembly and a connecting assembly, the guiding and limiting assembly is arranged on the inner cylinder, and the connecting assembly is arranged on the outer cylinder. The utility model belongs to the technical field of shaft clamps, and particularly relates to a civil air defense door accessory shaft clamp which solves the problem that when the outer diameter of a shaft accessory is small, a shaft machining clamp cannot fix the accessory, and the applicability of the accessory is affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaft clamps, in particular to a shaft clamp for civil air defense door accessories. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In a broad sense, any device used to quickly, conveniently and safely install accessories in any process can be called a fixture, such as welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc.

[0003] The apertures of the upper and lower positioning holes of the shaft processing fixture of the prior art solution are constant. Therefore, when the outer diameter of the shaft accessories is small, the shaft processing fixture cannot fix the accessories. This problem needs to be solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is that when the outer diameter of the shaft accessories is small, the shaft processing fixture cannot fix the accessories, thus affecting its applicability.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a shaft clamp for civil defense door accessories, including an outer cylinder and an inner cylinder, the inner cylinder is detachably plugged into the outer cylinder, and also includes a guide limit assembly and a connecting assembly, the guide limit assembly is arranged on the inner cylinder, and the connecting assembly is arranged on the outer cylinder. First, the inner cylinder is inserted into the outer cylinder through the guide limit assembly and the insertion distance is limited, and then the inner cylinder and the outer cylinder are fixedly connected by the connecting assembly to complete the reduction of the inner diameter of the clamp, so that shafts of different diameters can be clamped.

[0006] Furthermore, the guide limit assembly includes a limit block and a guide block, the limit block is fixedly connected to the top of the inner cylinder, the limit blocks are symmetrically distributed, the outer cylinder is provided with a guide groove, the guide grooves are arranged in a ring shape, the guide block is fixedly connected to the outer wall of the inner cylinder, and the guide block is slidably arranged inside the guide groove.

[0007] Furthermore, the connecting assembly includes a connecting block, a gasket and a locking piece, the connecting block passes through the inner tube and the outer tube and is slidably connected thereto, the connecting blocks are arranged in a ring shape, the gasket passes through the connecting block and is slidably connected thereto, and the locking piece passes through one end of the connecting block and is threadedly connected thereto.

[0008] Furthermore, the limit block is provided with a positioning hole, the outer cylinder is provided with a positioning groove, the positioning hole and the positioning groove have the same aperture, and the limit block is arranged at a right angle.

[0009] Furthermore, one side of the outer cylinder and the inner cylinder are both opened, and the outer cylinder is fixedly connected with fixing blocks, and the fixing blocks are symmetrically distributed in pairs.

[0010] Furthermore, a rubber sleeve is provided on the inner wall of the outer cylinder, and the rubber sleeve is arranged in a spiral shape. A spiral strip is provided on the inner wall of the inner cylinder, and the spiral strip is made of rubber material.

[0011] After adopting the above structure, the utility model has the following beneficial effects:

[0012] (1) The inner cylinder can be installed inside the outer cylinder according to the diameter of the shaft accessories, and the installation effect can be ensured by using guide blocks, guide grooves and limit blocks during installation;

[0013] (2) Rubber strips and spiral strips can increase the friction between the outer cylinder and the inner cylinder and the friction between the inner cylinder and the outer diameter of the shaft accessories;

[0014] (3) The connection and installation effect of the outer tube and the inner tube can be ensured by installing the connection block and setting the positioning groove and positioning hole;

[0015] (4) The size of the openings of the outer cylinder and the inner cylinder can be appropriately adjusted by using the fixing block to facilitate clamping of shaft accessories of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of a shaft fixture for civil air defense door accessories proposed by the utility model;

[0018] Figure 2 This is a front view of a shaft fixture for civil air defense door accessories proposed by the utility model;

[0019] Figure 3 A half-section view of a shaft fixture for a civil air defense door accessory proposed by the utility model;

[0020] Figure 4 This is a transverse cross-sectional view of a shaft fixture for a civil air defense door accessory proposed by the utility model;

[0021] Figure 5 Another plane cross-sectional view of a shaft fixture for civil air defense door accessories proposed by the utility model;

[0022] Figure 6 for Figure 5 Enlarged schematic diagram of part A.

[0023] In the attached drawings: 1. outer cylinder, 2. inner cylinder, 3. limit block, 4. guide block, 5. guide groove, 6. connecting block, 7. gasket, 8. locking piece, 9. positioning hole, 10. positioning groove, 11. fixing block, 12. rubber sleeve, 13. spiral strip. DETAILED DESCRIPTION

[0024] like Figure 1-3 As shown, a shaft clamp for civil air defense door accessories includes an outer cylinder 1 and an inner cylinder 2. The inner cylinder 2 is detachably plugged into the outer cylinder 1. It also includes a guide limit assembly and a connection assembly. The guide limit assembly is arranged on the inner cylinder 2, and the connection assembly is arranged on the outer cylinder 1.

[0025] like Figure 1-6 As shown, in order to appropriately reduce the inner diameter of the clamp and thus clamp shafts of different diameters, the guide limit assembly includes a limit block 3 and a guide block 4. The limit block 3 is fixedly connected to the top of the inner cylinder 2, and the limit blocks 3 are symmetrically distributed. The outer cylinder 1 is provided with a guide groove 5, and the guide grooves 5 are arranged in a ring shape. The guide block 4 is fixedly connected to the outer wall of the inner cylinder 2, and the guide block 4 is slidably arranged inside the guide groove 5. The connecting assembly includes a connecting block 6, a gasket 7 and a locking piece 8. The connecting block 6 passes through the inner cylinder 2 and the outer cylinder 1 and is slidably connected thereto. The connecting block 6 is arranged in a ring shape, and the gasket 7 passes through the connecting block 6 and is slidably connected thereto. The locking piece 8 passes through one end of the connecting block 6 and is threadedly connected thereto. A positioning hole 9 is provided on the limit block 3, and a positioning groove 10 is provided on the outer cylinder 1. The apertures of the positioning hole 9 and the positioning groove 10 are the same, and the limit block 3 is arranged at a right angle.

[0026] Among them, one side of the outer tube 1 and the inner tube 2 are both opened, and the outer tube 1 is fixedly connected with a fixing block 11, and the fixing blocks 11 are symmetrically distributed in pairs. A rubber sleeve 12 is provided on the inner wall of the outer tube 1, and the rubber sleeve 12 is spirally arranged. A spiral strip 13 is provided on the inner wall of the inner tube 2, and the spiral strip 13 is made of rubber material.

[0027] In specific use, according to the diameter of the shaft accessories, if they are within the outer diameter of the deformable and controlled aperture of the outer cylinder 1, the fixing block 11 is used to reduce the length of the opening of the outer cylinder 1 and reduce the inner diameter of the outer cylinder 1, so that the shaft accessories can be clamped in the outer cylinder 1, and finally the outer cylinder 1 is installed on the processing machine;

[0028] If the diameter of the shaft accessories is small, the inner cylinder 2 is inserted into the outer cylinder 1 by inserting the guide block 4 into the guide groove 5, and the top of the inner cylinder 2 is limited by the limit block 3 to control the insertion length so that the installation effect is guaranteed, and then the bolt is passed through the positioning hole 9 and screwed into the positioning groove 10 to pre-fix the inner cylinder 2, and then the connecting block 6 is passed through the inner cylinder 2 and then penetrates the outer cylinder 1, and then the gasket 7 is pressed against the outer wall of the outer cylinder 1, and finally the locking piece 8 is used to install and fix the connecting block 6 to the outer cylinder 1 and the inner cylinder 2, and the clamping of the shaft accessories with small diameter is completed;

[0029] The rubber strips and the spiral strips 13 can increase the friction between the outer tube 1 and the inner tube 2 and the friction between the inner tube 2 and the outer diameter of the shaft-like accessories.

[0030] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the scope of protection of the utility model.

Claims

1. A shaft fixture for civil air defense door accessories, comprising an outer cylinder and an inner cylinder, wherein the inner cylinder is detachably plugged into the outer cylinder, characterized in that: It also includes a guide limit assembly and a connection assembly, wherein the guide limit assembly is arranged on the inner cylinder, and the connection assembly is arranged on the outer cylinder. First, the inner cylinder is inserted into the outer cylinder through the guide limit assembly and the insertion distance is limited, and then the inner cylinder and the outer cylinder are fixedly connected by the connection assembly to complete the reduction of the inner diameter of the clamp, so that shafts of different diameters can be clamped.

2. The shaft fixture for civil air defense door accessories according to claim 1 is characterized in that: The guide limit assembly includes a limit block and a guide block, the limit block is fixedly connected to the top of the inner cylinder, the limit blocks are symmetrically distributed, the outer cylinder is provided with guide grooves, the guide grooves are arranged in a ring shape, the guide block is fixedly connected to the outer side wall of the inner cylinder, and the guide block is slidably arranged inside the guide groove.

3. The shaft fixture for civil air defense door accessories according to claim 2 is characterized in that: The connection assembly includes a connection block, a gasket and a locking piece. The connection block passes through the inner tube and the outer tube and is slidably connected thereto. The connection blocks are arranged in a ring shape. The gasket passes through the connection block and is slidably connected thereto. The locking piece passes through one end of the connection block and is threadedly connected thereto.

4. The shaft fixture for civil air defense door accessories according to claim 3 is characterized in that: The limit block is provided with a positioning hole, the outer cylinder is provided with a positioning groove, the positioning hole and the positioning groove have the same aperture, and the limit block is arranged at a right angle.

5. The shaft fixture for civil air defense door accessories according to claim 4 is characterized in that: One side of the outer cylinder and the inner cylinder are both opened, and the outer cylinder is fixedly connected with a fixing block, and the fixing blocks are symmetrically distributed in pairs.

6. The shaft fixture for civil air defense door accessories according to claim 5, characterized in that: A rubber sleeve is arranged on the inner wall of the outer cylinder, and the rubber sleeve is arranged in a spiral shape. A spiral strip is arranged on the inner wall of the inner cylinder, and the spiral strip is made of rubber material.

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