Expansion screw mounting sleeve

Abstract

The utility model discloses an expansion screw mounting sleeve which comprises a first connecting rod, a transmission sleeve and a connecting sleeve. The transmission sleeve is arranged, the left end of the transmission sleeve is connected with the first connecting rod, the inner end of the transmission sleeve is provided with the movable cavity, the movable cavity is internally connected with the movable cylinder and connected with the connecting sleeve through the movable cylinder, and the movable cavity and the movable cylinder are connected through the second connecting rod, so that the connection stability can be enhanced, and the two sets of transmission sleeves can be driven to rotate synchronously; and by stretching the movable cylinder, the length of the connecting sleeve can be increased, the expansion screw can be conveniently inserted into a narrow and deep mounting hole channel, the expansion screw can be mounted, the flexibility is high, the use is simple and convenient, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to expansion screw technical field, concretely is a kind of expansion screw installation sleeve. BACKGROUND

[0002] Expansion screw is a kind of special threaded connection, mainly used to be fixed on wall, floor or column by pipeline support, hanging, bracket or equipment, its working principle is to promote expansion to generate friction gripping force by wedge gradient, to achieve fixed effect, widely used in various decoration occasions.

[0003] Some expansion screws will encounter narrow environment when installing, so that conventional installation tools, such as wrench, electric drill, etc. are difficult to extend into, so that the installation effect of expansion screw may be affected, and the fixed effect cannot be achieved, which has certain limitations and safety hazards. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of expansion screw installation sleeve to solve the problems raised in the above background.

[0005] In order to achieve the above purpose, the utility model takes the following technical scheme: a kind of expansion screw installation sleeve, including the connecting rod one connectable with external equipment, further including the transmission sleeve set in the right end of connecting rod one, the transmission sleeve right end is connected with connecting sleeve;

[0006] The inner end of the transmission sleeve is provided with a movable cavity, the right end of the movable cavity is penetrated through the transmission sleeve and communicated with the outside, a group of middle rods are arranged in the left middle end of the movable cavity, and a group of connecting rods two are arranged in the middle end of the movable cavity, the upper and lower ends of the connecting rod two are penetrated and extended to the outside of the transmission sleeve.

[0007] Preferably, the right end of the middle rod is provided with a through hole one corresponding to the connecting rod two.

[0008] Preferably, the bottom end of the connecting rod two is provided with a fixed nut, and the top end is connected with a movable nut.

[0009] Preferably, the right middle end of the connecting sleeve is provided with a connecting groove, and the left end is connected with a group of movable barrels, the left end of the movable barrel is extended into the movable cavity, and the left end of the upper and lower faces of the movable barrel is provided with not less than two groups of through holes two.

[0010] Preferably, the left end of the middle rod can be extended to the middle end of the movable barrel.

[0011] Preferably, after the movable barrel is completely retracted into the movable cavity, the through hole one is opposite to the two groups of through holes two at the rightmost end.

[0012] Preferably, the connecting rod two is integrally arranged with the fixed nut, and the outer top end of the connecting rod two is provided with an external thread.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] Through setting up transmission sleeve, transmission sleeve left end is connected with connecting rod one, is equipped with movable cavity in the end, is equipped with movable cylinder in movable cavity, is connected with connecting sleeve through movable cylinder, and is connected through connecting rod two between movable cavity and movable cylinder, can strengthen its connection stability, and can drive two groups of synchronous rotation, through stretching movable cylinder, can lengthen the length of connecting sleeve, is convenient for exploring into narrow deep installation hole channel, installs expansion screw, high flexibility, simple and convenient to use, has stronger practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the transmission sleeve structural schematic diagram of the utility model;

[0017] Figure 3 It is the rod connecting structure schematic diagram in the utility model.

[0018] In the drawing: connecting rod one-1, transmission sleeve-2, connecting sleeve-3, movable cavity-21, middle rod-22, connecting rod two-23, through hole one-221, fixed nut-231, movable nut-232, connecting groove-31, movable cylinder-32, through hole two-321. DETAILED DESCRIPTION

[0019] In order to further explain the technical scheme of the utility model, the following is in detail through specific embodiment.

[0020] Please refer to Figure 1 The utility model provides a kind of expansion screw installation sleeve, including the connecting rod one 1 that can be connected with external equipment, such as electric drill, still include the transmission sleeve 2 of being equipped in the right end of connecting rod one 1, transmission sleeve 2 right end is connected with connecting sleeve 3.

[0021] Please refer to Figures 2-3The utility model provides a kind of expansion screw mounting sleeve, transmission sleeve 2 inner end is equipped with movable cavity 21, movable cavity 21 inner right end is communicated with outside and penetrates transmission sleeve 2, movable cavity 21 inner left middle end is equipped with a group of middle pole 22, and movable cavity 21 inner middle end is equipped with a group of connecting rod two 23, and the upper and lower ends of connecting rod two 23 are all extended to the outside of transmission sleeve 2, wherein, the right end of middle pole 22 is equipped with the through hole one 221 corresponding connecting rod two 23, and connecting rod two 23 is extended to the outside of transmission sleeve 2 by the through hole one 221, further, connecting rod two 23 bottom end is equipped with fixed nut 231, top end is connected with movable nut 232, and connecting rod two 23 is integrally arranged with fixed nut 231, and the outer thread corresponding movable nut 232 is equipped on the outer top end of connecting rod two 23, which is beneficial to disassembly, and stretching movable cylinder 32.

[0022] Please refer to Figures 2-3 The utility model provides a kind of expansion screw mounting sleeve, connecting sleeve 3 right side middle end is equipped with the connecting groove 31 corresponding expansion screw, left end is connected with a group of movable cylinder 32, and movable cylinder 32 left end is extended to movable cavity 21, and the left end of middle pole 22 can be extended to the middle end in movable cylinder 32, and movable cylinder 32 is positioned, and the left end of the upper and lower surface of movable cylinder 32 is equipped with not less than two groups of through hole two 321, after movable cylinder 32 is completely retracted in movable cavity 21, the through hole one 221 is opposite with the rightmost two groups of through hole two 321, and movable cylinder 32 can be stretched, so that the through hole two 321 of different positions is opposite with the through hole one 221, and then the movable cylinder 32 of different lengths is fixed.

[0023] Working principle is as follows:

[0024] When using, movable nut 232 can be rotated by force, so that it is separated from connecting rod two 23, then connecting rod two 23 is pulled out downwards, so that connecting rod two 23 is separated from the through hole two 321 of movable cylinder 32, then force is applied to connecting sleeve 3 and it is pulled out outward, after being stretched to appropriate position, connecting rod two 23 is reset, and in turn passes through bottom end through hole two 321, through hole one 221 and top end through hole two 321, until it is extended to the top end of transmission sleeve 2, then it is connected with movable nut 232, transmission sleeve 2 and connecting sleeve 3 are fixed, at this time, expansion bolt can be connected with connecting groove 31, connecting rod one 1 is connected with electric drill, and expansion bolt is installed and fixed.

[0025] The above only is preferred example of the utility model and is not used to limit the utility model, although the utility model is explained in detail with reference to the foregoing embodiment, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An expansion screw mounting sleeve comprising a connecting stem (1) connectable to an external device, characterised in that: It also includes the transmission sleeve (2) set in the right end of the connecting rod one (1), the transmission sleeve (2) right end is connected with the connecting sleeve (3); The inner end of the transmission sleeve (2) is provided with a movable cavity (21), the right end of the movable cavity (21) penetrates the transmission sleeve (2) and communicates with the outside, the left middle end of the movable cavity (21) is provided with a group of middle rods (22), and the middle end of the movable cavity (21) is provided with a group of connecting rods two (23), the upper and lower ends of the connecting rod two (23) are both extended to the outside of the transmission sleeve (2).

2. An expansion screw mounting sleeve according to claim 1, wherein: The right end of the middle rod (22) is provided with a through hole one (221) corresponding to the connecting rod two (23).

3. An expansion screw mounting sleeve according to claim 1, wherein: The bottom end of the connecting rod two (23) is provided with a fixed nut (231), and the top end is connected with a movable nut (232).

4. An expansion screw mounting sleeve according to claim 2, wherein: The right middle end of the connecting sleeve (3) is provided with a connecting groove (31), and the left end is connected with a group of movable barrels (32), the left end of the movable barrel (32) extends into the movable cavity (21), and the left end of the upper and lower faces of the movable barrel (32) is provided with not less than two groups of through holes two (321).

5. An expansion screw mounting sleeve according to claim 4, wherein: The left end of the middle rod (22) can extend to the middle end of the movable barrel (32).

6. An expansion screw mounting sleeve according to claim 5, wherein: After the movable barrel (32) is completely retracted into the movable cavity (21), the through hole one (221) is opposite to the two groups of through holes two (321) at the rightmost end.

7. An expansion screw mounting sleeve according to claim 3, wherein: The connecting rod two (23) and the fixed nut (231) are integrally arranged, and the outer top end of the connecting rod two (23) is provided with an external thread.

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