CN219953878U - Expansion type lock catch box fixing bolt - Google Patents

Abstract

The utility model provides an expansion type lock catch box fixing bolt, which realizes the function of installing a lock catch box by matching a first screw body structure with a second screw body structure and solves the problem that the installation of the expansion bolt can cause obstruction to the opening and closing path of a door. Including first screw rod body, second screw rod body, screw up nut and expansion sleeve, expansion sleeve movable sleeve establishes in the outside of first screw rod body, and the second screw rod body sets up the tip at first screw rod body, second screw rod body swing joint, and the one end integrated into one piece that the second screw rod body was kept away from to first screw rod body is equipped with the protruding head, screw up the nut cover and establish the one end at first screw rod, second screw rod body connection, screw up nut and first screw rod, second screw rod threaded connection. This expansion type hasp box fixing bolt, through the cooperation of first screw body, second screw body, can the quick separation after carrying out the installation to hasp box, reduce expansion fixing bolt's whole length, expose the tip can not influence the normal switch of door outward.

Description

Expansion type lock catch box fixing bolt

Technical Field

The utility model relates to the technical field of expansion bolts, in particular to an expansion lock catch box fixing bolt.

Background

The utility model discloses an expansion bolt, which is a special threaded connecting piece used for fixing a pipeline support/hanging/bracket or equipment on a wall, a floor and a column, wherein a lock catch box is a component part of a door lock, box (plate) parts for buckling a lock tongue during closing are fixed by bolts, a plurality of groups of bolts are arranged at intervals along the surface of the lock catch box, a door is used as an important safety protection tool, the requirement on the use stability is extremely high, so the number of bolts is more, the installation stability of the lock catch box is ensured, but the assembly time is long due to the installation of a large number of bolts, the inventor proposes that the expansion bolt is used for replacing a common bolt, the expansion bolt is small in drilling, but has large pulling force, the fastening capacity is higher than that of the common bolt, the fastening effect can be achieved in a stronger way due to the fact that the outer end part of the current fastening bolt is not less than the hole part after the fastening, and the current fastening bolt is removed out of the hole, so that the opening and closing path of the door can be blocked when the door is applied to the lock catch box.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides an expansion lock catch box fixing bolt, which realizes the function of installing a lock catch box by combining a first screw body structure with a second screw body structure and solves the problem that the installation of the expansion bolt can cause obstruction to the opening and closing path of a door.

In order to achieve the above purpose, the present utility model provides the following technical solutions: including first screw rod body, second screw rod body, screw up nut and expansion sleeve, expansion sleeve movable sleeve establishes in the outside of first screw rod body, the second screw rod body sets up the tip at first screw rod body, second screw rod body swing joint, the one end integrated into one piece that the second screw rod body was kept away from to first screw rod body is equipped with the bulge, screw up the nut cover and establish the one end at first screw rod, second screw rod body connection, screw up nut and first screw rod, second screw rod threaded connection, the one end of first screw rod body towards the second screw rod body is hollow setting, inside has the slip jack, the one end protrusion of first screw rod body towards the second screw rod body is equipped with the cooperation inserted bar, the one end integrated into one piece that the first screw rod was kept away from to the second screw rod body has the fixed head. Through the cooperation of first screw body, second screw body, can the quick separation after installing the lock catch box to this reduces expansion fixing bolt's whole length, and after many expansion fixing bolt installation was accomplished, the exposed tip can not influence the normal switch of door.

Preferably, the outer wall of the expansion sleeve is provided with grooves, the grooves are close to one end of the raised head, and the grooves are distributed around the outer wall of the expansion sleeve.

Preferably, the matched inserted link is of a cylinder structure and is fixedly connected with the second screw body, and the matched inserted link and the second screw body are concentrically distributed. The second screw body can be matched with the first screw body to be fixed and synchronously rotated through the arrangement of the matched inserted rod.

Preferably, the outer wall of the matching inserted link is provided with a connecting convex bar which is the same length as the matching link and is fixedly connected with the matching inserted link.

Preferably, the inner wall of the sliding jack is provided with a moving limiting groove, and the moving limiting groove is in adaptive sliding connection with the connecting convex strips. Thanks to the cooperation of the movable limiting groove and the connecting convex strips, the first screw body and the second screw body have the movable splicing and separating effect.

Preferably, the center of the tightening nut is provided with a threaded hole for the threads of the first screw body and the second screw body to pass through.

The utility model has the beneficial effects that:

1. according to the utility model, through the matching of the first screw body and the second screw body, the lock catch box can be quickly separated after being installed and fixed, so that the whole length of the expansion fixing bolt is reduced, when the installation of a plurality of expansion fixing bolts is completed, the exposed end part of the expansion fixing bolt does not influence the normal opening and closing of the door, the second screw body can be understood as a fitting, the installation of a plurality of first screw bodies can be matched, and compared with the installation of the expansion bolts in the prior art, the lock catch box has a longer exposed part, and the exposed part of the bolts in the scheme is smaller, so that the lock catch box can be suitable for the installation of the lock catch box.

2. According to the utility model, through ingenious structural design, the expansion bolt can be applied to the installation of the lock catch box, normal opening and closing use of the door cannot be affected, and the lock catch box is more firm to install and has strong practicability because the expansion force is stronger than that of a common bolt.

In conclusion, the utility model has the advantages of firm installation, small volume, convenient use and the like.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a split state diagram of the present utility model;

FIG. 3 is a schematic view of the present utility model in a partially separated state;

fig. 4 is a schematic view of the partial connection of the mating plug rod and the first screw body according to the present utility model.

In the figure: 1. a first screw body; 2. expanding the casing; 3. a nose; 4. tightening the nut; 5. slotting; 6. a second screw body; 7. a fixed head; 8. moving the limit groove; 9. a sliding jack; 10. connecting convex strips; 11. matching with a plug rod; 12. and (3) a threaded hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

As shown in fig. 1-2, the present embodiment provides an expansion lock catch box fixing bolt, which comprises a first screw body 1, a second screw body 6, a tightening nut 4 and an expansion sleeve 2, wherein the expansion sleeve 2 is movably sleeved outside the first screw body 1, the second screw body 6 is arranged at the end part of the first screw body 1, and the first screw body 1 and the second screw body 6 are movably connected; the end, far away from the second screw rod body 6, of the first screw rod body 1 is integrally formed with a raised head 3, a tightening nut 4 is sleeved at the end, connected with the first screw rod and the second screw rod body 6, of the tightening nut 4, and the tightening nut 4 is in threaded connection with the first screw rod and the second screw rod; the outer wall of the expansion sleeve 2 is provided with grooves 5, the grooves 5 are close to one end of the raised head 3, and the grooves 5 are distributed along the outer wall of the expansion sleeve 2 in a surrounding mode. The matching inserted link 11 is of a cylinder structure and is fixedly connected with the second screw body 6, and the matching inserted link 11 and the second screw body 6 are concentrically distributed. The inner wall of the sliding jack 9 is provided with a moving limit groove 8, and the moving limit groove 8 is in adaptive sliding connection with a connecting convex strip 10. Through the connection sand grip 10 on the cooperation inserted bar 11 outer wall, with the removal spacing groove 8 cooperation on the slip jack 9 inner wall, first screw body 1, the synchronous rotation of second screw body 6.

Example two

As shown in fig. 3 to 4, in which the same or corresponding parts as those in the first embodiment are denoted by the corresponding reference numerals as in the first embodiment, only the points of distinction from the first embodiment will be described below for the sake of brevity. The second embodiment is different from the first embodiment in that: the first screw body 1 is hollow towards the one end of second screw body 6 and sets up, and inside has slip jack 9, and the one end protrusion of first screw body 1 towards second screw body 6 is equipped with cooperation inserted bar 11, and the one end integrated into one piece that second screw body 6 kept away from first screw has fixed head 7. The outer wall of the matching inserted link 11 is provided with a connecting raised line 10, and the connecting raised line 10 is the same length as the matching link and is fixedly connected with the matching inserted link 11. The center of the tightening nut 4 is provided with a threaded hole 12 for the threads of the first screw body 1 and the second screw body 6 to pass through. The screw body 1 is continuously rotated along with the external tightening nut 4, the tightening nut 4 keeps unchanged in position during rotation, and then the second screw body 6 inside the tightening nut 4 is gradually replaced by the first screw body 1, and the first screw body 1 continuously moves towards the outside of the hole.

Working procedure

When in use, firstly, holes are punched on a wall body/a door frame, the punched height corresponds to the height of a door lock, then a connecting hole on a lock catch box corresponds to the punched position, an expansion fixing bolt is inserted into the hole, then a spanner is used for rotating a tightening nut 4, at the moment, a fixing head 7 is pressed, the fixing head 7 is pressed towards the direction of a first screw body 1, so that the first screw body 1 and a second screw body 6 are in an integral state, through matching a connecting convex strip 10 on the outer wall of a plug rod 11 and matching with a movement limiting groove 8 on the inner wall of a sliding plug hole 9, the first screw body 1 and the second screw body 6 synchronously rotate, the first screw body 1 continuously rotates along with the external tightening nut 4, the position of the tightening nut 4 is kept unchanged when in rotation, and then the second screw body 6 inside the tightening nut 4 is gradually replaced by the first screw body 1, as the first screw body 1 continuously moves towards the outside of the hole, the raised head 3 at the end part of the expansion sleeve is contacted with the expansion sleeve 2, the bending is arranged at the position of the slot 5, the expansion sleeve 2 is gradually abutted against the inner wall of the hole, the tightening nut 4 is positioned outside the first screw body 1 at the moment, the first screw body 1 is fixed on the wall body/door frame, the second screw body 6 is then pulled out from the first screw body 1, the whole length of the expansion fixing bolt is further increased, after the installation of a plurality of expansion fixing bolts is completed, the exposed end part of the expansion fixing bolt can not influence the normal opening and closing of the door, the second screw body 6 can be understood as a fitting, the installation of a plurality of first screw bodies 1 can be matched, compared with the prior art expansion bolts, the bolt exposure part in the case is smaller, the expansion fixing bolt can be suitable for the installation of a lock catch box, the normal opening and closing of the door can not be influenced, and the expansion fixing bolt has stronger pulling force and tightness, so that the lock catch box is more firmly installed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (6)

1. The expansion type lock catch box fixing bolt comprises a first screw rod body, a second screw rod body, a tightening nut and an expansion sleeve, and is characterized in that the expansion sleeve is movably sleeved outside the first screw rod body, the second screw rod body is arranged at the end part of the first screw rod body, and the first screw rod body and the second screw rod body are movably connected;

the screw nut is sleeved at one end of the first screw rod and one end of the second screw rod body, which are connected, and is in threaded connection with the first screw rod and the second screw rod;

the one end that first screw rod body towards the second screw rod body is hollow setting, and inside has the slip jack, the one end protrusion that first screw rod body towards the second screw rod body is equipped with the cooperation inserted bar, the one end integrated into one piece that the second screw rod body kept away from first screw rod has the fixed head.

2. The expansion boot fixing bolt according to claim 1, wherein the outer wall of the expansion sleeve is provided with grooves, the grooves are close to one end of the raised head, and the grooves are circumferentially distributed along the outer wall of the expansion sleeve.

3. The expansion lock catch box fixing bolt according to claim 1, wherein the matched inserted rod is of a cylinder structure and is fixedly connected with the second screw body, and the matched inserted rod and the second screw body are concentrically distributed.

4. An expansion lock catch box fixing bolt according to claim 3, wherein the outer wall of the matching inserted bar is provided with a connecting convex bar, and the connecting convex bar is the same length as the matching bar and is fixedly connected with the matching inserted bar.

5. The expansion lock catch box fixing bolt according to claim 4, wherein the inner wall of the sliding insertion hole is provided with a moving limiting groove, and the moving limiting groove is in adaptive sliding connection with the connecting convex strip.

6. The expansion lock catch box fixing bolt according to claim 1, wherein a threaded hole through which threads of the first screw body and the second screw body pass is formed in the center of the tightening nut.