CN218509917U

CN218509917U - Bolt with adjustable length

Info

Publication number: CN218509917U
Application number: CN202222891434.8U
Authority: CN
Inventors: 董正伟; 马志文; 吕良昆
Original assignee: Qingdao Chengzhuolin Metal Products Co ltd
Current assignee: Qingdao Chengzhuolin Metal Products Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-02-21
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses a bolt with adjustable length relates to bolt technical field, including the bolt head, bolt head bottom center fixedly connected with bolt main shaft, bolt main shaft both sides are all rotated and are connected with the screw rod, and screw rod top fixedly connected with revolves the cap, revolves the cap and rotates to be connected on the bolt head, and the part threaded connection that the screw rod is located bolt main shaft below has a plurality of bolt countershaft, and the through-hole has been seted up to bolt main shaft bottom, and bolt countershaft top fixedly connected with is to the butt joint pole, sliding connection has the correspondence in the through-hole butt joint pole, bolt countershaft both sides are run through and have been seted up the screw, and screw rod threaded connection has seted up the butt joint hole bottom the bolt countershaft, and sliding connection has the correspondence in the butt joint pole, bolt head top lock have the buckle cap, and revolve the cap top and set up flutedly. The utility model discloses a set up screw rod, bolt countershaft, bolt main shaft and revolve the cap, can adjust the length of bolt according to specific actual conditions.

Description

Bolt with adjustable length

Technical Field

The utility model relates to a bolt technical field specifically is a bolt with adjustable length.

Background

The bolt belongs to mechanical parts, is a cylinder with a nut, is a threaded fastener generally, is a fastener consisting of a head part and a screw rod, needs to be matched with the nut and is used for fastening and connecting two parts with through holes, so the bolt connection belongs to detachable connection, and the bolt is widely applied to various mechanical equipment and products and is a fastener frequently used.

However, the length of the threaded rod of the bolt in real life is mostly fixed and unchangeable, the length of the bolt cannot be adjusted according to specific practical conditions, the bolt needs to be additionally selected when a deep through hole is met, the efficiency of fixing operation of workers is influenced, the length of the whole bolt needs to be fixed after the bolt is adjusted in length for the bolt with the adjustable part of the length, and the existing fixing structure after adjustment is cumbersome to use.

In order to solve the above problems, it is necessary to provide a bolt with adjustable length.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned technical problem, a bolt with adjustable length is provided, the length of the threaded rod of bolt in the real life that has provided in the above-mentioned background art has been solved to this technical scheme is mostly fixed unchangeable, can not adjust the length of bolt according to concrete actual conditions, need select the bolt in addition when meetting darker through-hole, influence the efficiency of the fixed operation of workman, and to partial length adjustable bolt, need the length of fixed whole bolt behind bolt length adjustment, but current regulation back fixed knot structure uses comparatively loaded down with trivial details problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a bolt with adjustable length, includes the bolt head, bolt head bottom center fixedly connected with bolt main shaft, bolt main shaft both sides all rotate and are connected with the screw rod, and screw rod top fixedly connected with revolves the cap, revolves the cap and rotates and connect on the bolt head, and the part threaded connection that the screw rod is located bolt main shaft below has a plurality of bolt countershaft, and the through-hole has been seted up to bolt main shaft bottom, and bolt countershaft top fixedly connected with is to the butt joint pole, sliding connection in the through-hole corresponds butt joint pole, bolt countershaft both sides are run through and have been seted up the screw, and screw rod threaded connection is in the screw, and butt joint hole has been seted up to bolt countershaft bottom, and sliding connection in the butt joint hole corresponds the butt joint pole, bolt head top lock have the buckle cap, revolve the cap top and set up flutedly, buckle cap lower fixed surface is connected with two locating racks, and the position of locating rack is corresponding in the recess of revolving the cap.

Preferably, a plurality of buckle frames are fixedly connected to the edge of the bottom of the buckle cap, a plurality of fixing plates are fixedly connected to the bottom of the bolt head in a corresponding position, a plurality of sliding rods are slidably connected to the side faces of the fixing plates, buckle blocks are fixedly connected to the right ends of the sliding rods and abut against the buckle blocks in the corresponding notches of the buckle frames, and reset springs are sleeved at the left ends of the sliding rods.

Preferably, the left end of the sliding rod is fixedly connected with a blocking piece, the right end of the reset spring is fixedly connected to the left side of the fixing plate, and the left end of the reset spring is fixedly connected to the blocking piece.

Preferably, the right side of the top of the buckling block is a first inclined plane, the left side of the bottom of the buckling frame is a second inclined plane, and the slopes of the first inclined plane and the second inclined plane are consistent.

Preferably, the height and the diameter of the butt joint hole are matched with those of the butt joint rod.

Preferably, the groove shape of the screw cap is consistent with the shape of the locating frame.

Compared with the prior art, the utility model provides a bolt with adjustable length possesses following beneficial effect:

1. the length of the whole bolt can be adjusted by arranging the screw, the bolt auxiliary shaft, the bolt main shaft and the screw cap, so that the length of the bolt can be adjusted according to specific practical conditions, and when a deep through hole is met, the bolt does not need to be additionally selected, and the efficiency of fixing operation of workers is prevented from being influenced;

2. through setting up buckle frame, buckle piece, reset spring, slide bar, locating rack and spiral cover, can fix the length of whole bolt through the mode of lock after adjusting bolt length for bolt length can not change, and simultaneously, this fixed mode is simple swift, only can accomplish through the pressfitting butt joint, and it is also very convenient to dismantle, the operation of being convenient for.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic structural view of the bolt countershaft according to the present invention;

fig. 4 is a schematic view of another perspective structure of the bolt countershaft according to the present invention;

FIG. 5 is a schematic view of the structure of the buckle cap of the present invention;

FIG. 6 is a schematic view of a portion A of the structure of FIG. 1;

the reference numbers in the figures are:

101. a snap cap; 102. screwing the cap; 103. a bolt head; 104. a bolt spindle; 105. a screw; 106. a bolt auxiliary shaft; 107. a docking rod; 108. a screw hole; 109. a butt joint hole; 110. a positioning frame; 111. a slide bar; 112. a return spring; 113. a fixing plate; 114. a buckling block; 115. a buckle frame.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1 to 6, a bolt with adjustable length includes a bolt head 103, a bolt main shaft 104 is fixedly connected to the center of the bottom of the bolt head 103, both sides of the bolt main shaft 104 are rotatably connected with a screw 105, the top of the screw 105 is fixedly connected with a screw cap 102, the screw cap 102 is rotatably connected to the bolt head 103, a part of the screw 105 below the bolt main shaft 104 is in threaded connection with a plurality of bolt auxiliary shafts 106, the bottom of the bolt main shaft 104 is provided with a through hole, the top of the bolt auxiliary shaft 106 is fixedly connected with an abutting rod 107, the through hole is in sliding connection with the abutting rod 107, both sides of the bolt auxiliary shaft 106 are provided with screw holes 108 in a penetrating manner, the screw 105 is in threaded connection with the screw holes 108, the bottom of the bolt auxiliary shaft 106 is provided with an abutting hole 109, the abutting rod 107 is in sliding connection with the abutting hole 109, the top of the bolt head 103 is fastened with a fastening cap 101, the top of the screw cap 102 is provided with a groove, the lower surface of the fastening cap 101 is fixedly connected with two positioning frames 110, the positioning frames 110 are fastened in the grooves corresponding to the screw cap 102;

when the length of the bolt is adjusted, the screw cap 102 is screwed by a screwdriver to drive the screw 105 to rotate, so that the bolt auxiliary shaft 106 descends along the screw 105, the whole length of the bolt is lengthened, and when the length of the bolt is increased enough and the groove lines of the screw cap 102 correspond to the positioning frame 110, the screwing of the screw cap 102 is stopped.

Specifically, the bottom edge of the buckle cap 101 is fixedly connected with a plurality of buckle frames 115, the bottom of the bolt head 103 is fixedly connected with a plurality of fixing plates 113 at corresponding positions, the side surface of each fixing plate 113 is connected with a plurality of sliding rods 111 in a sliding manner, the right end of each sliding rod 111 is fixedly connected with a buckle block 114, each buckle block 114 abuts against the corresponding notch of the corresponding buckle frame 115, and the left end of each sliding rod 111 is sleeved with a return spring 112;

after the length of the bolt is adjusted, the bolt is fixed, so that the positioning frame 110 is aligned with the screw cap 102, the fastening cap 101 is pressed downwards to be fastened on the bolt head 103, the positioning frame 110 is embedded into a groove of the screw cap 102, and therefore the screw rod 105 cannot rotate under the action of external force, and therefore the position of the bolt auxiliary shaft 106 cannot be changed, so that the length of the bolt is locked, and secondly, the fastening frame 115 presses the fastening block 114 downwards, so that the fastening block 114 moves inwards and rebounds into the fastening frame 115 by the reset spring 112, and the fastening cap 101 cannot be separated from the bolt head 103.

The left end of the sliding rod 111 is fixedly connected with a blocking piece, the right end of the return spring 112 is fixedly connected to the left side of the fixing plate 113, and the left end of the return spring 112 is fixedly connected to the blocking piece.

The right side of the top of the buckling block 114 is a first inclined surface, the left side of the bottom of the buckling frame 115 is a second inclined surface, the first inclined surface and the second inclined surface have the same gradient, the height and the diameter of the butt joint hole 109 are matched with the height and the diameter of the butt joint rod 107, and the shape of the groove of the screw cap 102 is the same as that of the positioning frame 110.

The utility model discloses a theory of operation and use flow: the length of the whole bolt can be adjusted by arranging the screw 105, the bolt auxiliary shaft 106, the bolt main shaft 104 and the screw cap 102, so that the length of the bolt can be adjusted according to specific practical conditions, and when a deep through hole is met, the bolt does not need to be selected additionally, and the efficiency of fixing operation of workers is prevented from being influenced; through setting up buckle frame 115, buckle piece 114, reset spring 112, slide bar 111, locating rack 110 and spiral shell cap 102, can be after adjusting bolt length, through the mode of lock, fix the length of whole bolt for bolt length can not change, simultaneously, this fixed mode is simple swift, only can accomplish through the pressfitting butt joint, and it is also very convenient to dismantle, the operation of being convenient for.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A bolt with adjustable length, characterized by comprising a bolt head (103), the center of the bottom of the bolt head (103) is fixedly connected with a bolt main shaft (104), both sides of the bolt main shaft (104) are rotatably connected with a screw rod (105), the top of the screw rod (105) is fixedly connected with a screw cap (102), the screw cap (102) is rotatably connected on the bolt head (103), part of the screw rod (105) below the bolt main shaft (104) is in threaded connection with a plurality of bolt auxiliary shafts (106), the bottom of the bolt main shaft (104) is provided with a through hole, the top of the bolt auxiliary shaft (106) is fixedly connected with a butt-joint rod (107), the through hole is internally and slidably connected with the butt joint rod (107), screw holes (108) are arranged on two sides of the bolt auxiliary shaft (106) in a penetrating way, the screw rod (105) is connected in the screw holes (108) in a threaded way, the bottom of the bolt auxiliary shaft (106) is provided with a butt joint hole (109), butt joint hole (109) sliding connection has the correspondence butt joint pole (107), and buckle cap (101) have been buckled at bolt head (103) top, and the recess has been seted up at screw cap (102) top, and buckle cap (101) lower surface fixed connection has two locating racks (110), and the position of locating rack (110) corresponds with the position of screwing cap (102), and locating rack (110) lock is in corresponding in the recess of screwing cap (102).

2. A length adjustable bolt as defined in claim 1, wherein: the buckle cap (101) bottom edge fixedly connected with a plurality of buckle frame (115), bolt head (103) bottom correspond a plurality of fixed plate (113) of position fixedly connected with, fixed plate (113) side sliding connection has a plurality of slide bar (111), slide bar (111) right-hand member fixedly connected with buckle piece (114), buckle piece (114) butt is in corresponding in the notch of buckle frame (115), slide bar (111) left end has cup jointed reset spring (112).

3. A length adjustable bolt as defined in claim 2, wherein: the left end of the sliding rod (111) is fixedly connected with a blocking piece, the right end of the reset spring (112) is fixedly connected to the left side of the fixing plate (113), and the left end of the reset spring (112) is fixedly connected to the blocking piece.

4. A length adjustable bolt as defined in claim 2, wherein: the right side of the top of the buckling block (114) is provided with a first inclined plane, the left side of the bottom of the buckling frame (115) is provided with a second inclined plane, and the slopes of the first inclined plane and the second inclined plane are consistent.

5. A length adjustable bolt as defined in claim 1, wherein: the height and the diameter of the butt joint hole (109) are matched with those of the butt joint rod (107).

6. A length adjustable bolt as defined in claim 1, wherein: the groove shape of the screw cap (102) is consistent with the shape of the positioning frame (110).