CN210570291U

CN210570291U - Automatic locking safety tape

Info

Publication number: CN210570291U
Application number: CN201921457258.9U
Authority: CN
Inventors: 江建军; 华小毛; 黄忠华; 王瑞士
Original assignee: Ningbo Jf Giant Tools Industrial Co ltd
Current assignee: Ningbo Jf Giant Tools Industrial Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-05-19
Anticipated expiration: 2029-09-03

Abstract

The utility model relates to an automatic safe tape measure of locking, including shell, chi spring and chi strip, the lateral wall of shell is provided with the installation pole that supplies the chi spring installation, still including installing the auto-lock subassembly in the shell inside, the auto-lock subassembly is including installing the mounting disc at the installation pole lateral wall, articulating the location buckle in mounting disc border department and fixing the holding ring at the shell lateral wall the top of location buckle is provided with the joint dogtooth, the inner wall of holding ring is provided with the location dogtooth of laminating each other with the joint dogtooth. The utility model discloses have and can realize the auto-lock to the tape measure when the rolling speed is too fast when the tape measure, avoided leading to the staff fish tail because of the rolling speed of tape measure is too fast to the effect of the security that the tape measure used has been improved.

Description

Automatic locking safety tape

Technical Field

The utility model belongs to the technical field of the technique of tape measure and specifically relates to a safe tape measure of automatic locking is related to.

Background

Tape measures are currently a common tool used in everyday life to measure the length of an object. The existing tape measure generally comprises a shell, a tape, a brake, a hook, a lifting belt and a tape spring, wherein the steel tape measure is used, the tape measure needs to be drawn out from the inside of the shell, then an object is hooked through the hook to measure, after the measurement is completed, the tape measure is automatically contracted through the elasticity of the tape spring, but the tape measure is high in speed in the contraction process, the length of the tape measure extending out of the shell is long, the tape measure is easy to shake when contracting to the end, the damage of a hand is easy to cause, and if the tape measure is directly taken by a hand to be limited, the scratch hand is easy to cause, and the safety is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic safe tape measure of locking has and can realize the auto-lock to the tape measure when the rolling speed is too fast as the tape measure, has avoided leading to the staff fish tail because of the rolling speed of tape measure is too fast to the effect of the security that the tape measure used has been improved.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an automatic safe tape measure of locking, includes shell, blade spring and chi strip, the lateral wall of shell is provided with the installation pole that supplies the blade spring installation, still including installing the auto-lock subassembly in the shell inside, the auto-lock subassembly is including installing the mounting disc at installation pole lateral wall, articulating the location buckle and fixing the holding ring at the shell lateral wall in the department at mounting disc border the top of location buckle is provided with the joint dogtooth, the inner wall of holding ring is provided with the location dogtooth of laminating each other with the joint dogtooth.

Through adopting above-mentioned technical scheme, set up the auto-lock subassembly in the shell inside, when the chi strip contracts, the mounting disc rotates along with the chi strip, when the slew velocity of mounting disc is great, the location buckle is to the one side motion of keeping away from the mounting disc under the effect of centrifugal force, when centrifugal force is big to a certain extent, make location buckle and the location dogtooth joint of installing on the holding ring of casing lateral wall, thereby realize the auto-lock location to the steel tape, reduced the too fast probability that leads to the hand to take place the damage of contraction because of the steel tape, the security of steel tape in the use has been promoted to a certain extent.

The utility model discloses further set up to: the lateral wall of mounting disc is provided with a locating plate, the lateral wall of mounting disc radially is provided with compression spring, compression spring's one end and location buckle are kept away from one side of joint dogtooth and are connected, and the other end is connected with the locating plate.

Through adopting above-mentioned technical scheme, set up a locating plate at the lateral wall of mounting disc, be provided with compression spring between location buckle and the locating plate, can after the joint between location buckle lance locating ring for steel tape measure stop motion, compression spring shrink afterwards makes the location buckle can reset through compression spring's elasticity, makes the steel tape measure can continue to carry out the rolling, thereby has made things convenient for the rolling of steel tape measure.

The utility model discloses further set up to: the lateral wall of location buckle orientation mounting disc is provided with the erection column, the lateral wall of shell is provided with the articulated ring that supplies the erection column installation of sliding, pass through bolt interconnect between articulated ring and the erection column.

Through adopting above-mentioned technical scheme, set up the erection column in one side of location buckle orientation mounting disc to the installation between location buckle and the hinge ring has been made things convenient for.

The utility model discloses further set up to: the side wall of the positioning buckle is provided with a countersunk hole for embedding the bolt.

Through adopting above-mentioned technical scheme, set up the counter sink that supplies the bolt embedding at the lateral wall of location buckle to make things convenient for the location installation between location buckle and the shell, and avoided taking place to interfere between bolt and the shell, reduced the space that the bolt occupy, thereby reduced the volume of steel tape, made things convenient for carrying of steel tape.

The utility model discloses further set up to: one side of the shell, which is positioned on the positioning buckle, is provided with an adjusting disc, and the adjusting disc is provided with a slot for inserting the installation rod.

Through adopting above-mentioned technical scheme, set up the adjustment disk between shell and location buckle to speed when can realize the auto-lock to the steel tape measure through the elasticity between adjustment disk and the location buckle is adjusted, people can be according to the different custom adjustment disk's that use elasticity.

The utility model discloses further set up to: the lateral wall of adjusting disk shell has seted up a screw hole, the lateral wall of adjusting disk is provided with a locking screw who runs through the screw hole.

Through adopting above-mentioned technical scheme, set up the screw hole in the outside of adjustment disk to set up the screw rod that runs through the screw hole at the lateral wall of adjustment disk, thereby made things convenient for the regulation of adjustment disk.

The utility model discloses further set up to: and a handle is sleeved on the outer side of the locking screw rod.

Through adopting above-mentioned technical scheme, when the degree of depth of adjusting disk was adjusted to needs, the staff held the handle and rotated the handle to drive whole adjusting disk towards the motion of location buckle, thereby further made things convenient for the regulation of adjusting disk.

The utility model discloses further set up to: the lateral wall of adjusting plate is provided with a rubber pad.

Through adopting above-mentioned technical scheme, increased the frictional force between adjusting disk and the location buckle to made things convenient for the regulation of adjusting disk to the elasticity of location buckle.

To sum up, the utility model discloses a beneficial technological effect does:

1. the automatic locking safety tape measure is provided with the self-locking assembly, so that the tape measure can be self-locked when the winding speed of the tape measure is too high, the scratch of hands caused by the too high winding speed of the tape measure is avoided, and the use safety of the tape measure is improved;

2. the utility model has the effect of adjusting the winding speed when the steel tape is locked by arranging the adjusting disc;

3. above-mentioned utility model through setting up compression spring, have when the automatic locking back of steel tape, the elasticity that can have according to compression spring is automatic the effect of withdrawing after rolling speed descends.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

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

Fig. 3 is a schematic diagram of the local explosion structure of the present invention.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

In the figure, 1, a housing; 11. mounting a rod; 12. an adjusting disk; 122. locking the screw rod; 123. a handle; 13. a threaded hole; 2. a scale spring; 3. a ruler strip; 4, a self-locking assembly; 41. mounting a disc; 411. positioning a plate; 412. a hinge ring; 42. positioning a buckle; 421. clamping the convex teeth; 422. mounting a column; 423. a countersunk hole; 43. a positioning ring; 431. positioning the convex teeth; 44. compressing the spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, an automatic locking safety tape measure comprises a housing 1, a blade spring 2, a blade 3, and a self-locking assembly 4 mounted inside the housing 1.

Referring to fig. 2, the side wall of the housing 1 is provided with a mounting rod 11 to which the blade spring 2 is mounted. The side wall of the housing 1 is provided with an adjusting plate 12, and the adjusting plate 12 is provided with a slot 121 for inserting the mounting rod 11. In this embodiment, shell 1 divide into left casing and right casing, and auto-lock subassembly 4 and adjusting disk 12 all set up in the one side that is close to right casing, adopt interference fit to fix between left casing and the right casing.

Referring to fig. 2 and 3, a threaded hole 13 is formed in the side wall of the housing 1, a locking screw 122 penetrating through the threaded hole 13 is disposed on the side wall of the adjusting plate 12, a handle 123 is sleeved outside the locking screw 122, and a rubber pad is disposed on the side wall of the adjusting plate 12. In this embodiment, the adjusting disk 12 and the locking screw 122 are fixed by welding, and the handle 123 and the locking screw 122 are fixed by welding, when mounting, the adjusting disk 12 is first mounted on the side wall of the housing 1, the locking screw 122 located on the side wall of the adjusting disk passes through the threaded hole, and finally the handle 123 and the locking screw 122 are welded to complete mounting.

Referring to fig. 3 and 4, the self-locking assembly 4 includes a mounting plate 41 mounted on the side wall of the mounting rod 11, a positioning catch 42 hinged at the edge of the mounting plate 41, and a positioning ring 43 fixed on the side wall of the housing 1.

The top of the positioning buckle 42 is provided with a clamping convex tooth 421, and the side wall of the positioning buckle 42 facing the mounting plate 41 is provided with a mounting column 422. The inner wall of holding ring 43 is provided with the location dogtooth 431 of laminating each other with joint dogtooth 421, and location dogtooth 431 sets up along the even interval of inner wall circumference of holding ring 43, in this embodiment, installs through the bolt between holding ring 43 and the casing, and the bolt is provided with four along the border circumference of holding ring 43, and the number of location buckle 42 is four, and just sets up along the even interval of lateral wall circumference of mounting disc 41.

The lateral wall of mounting disc 41 is provided with a locating plate 411, mutually perpendicular between locating plate 411 and the mounting disc 41, and the lateral wall of mounting disc 41 radially is provided with compression spring 44, and compression spring 44's one end and location buckle 42 are kept away from the one side of joint dogtooth 421 and are connected, and the other end is connected with locating plate 411. In this embodiment, the compression spring 44 is fixed to the positioning plate 411 by welding, and the other end of the compression spring is fixed to the positioning buckle 42 by welding.

The lateral wall of shell 1 is provided with the articulated ring 412 that supplies the erection column 422 to slide the installation, passes through bolt interconnect between articulated ring 412 and the erection column 422, and the counter sink 423 that supplies the bolt embedding is seted up to the lateral wall of location buckle 42.

The use principle of the embodiment is as follows: when the chi strip 3 contracts, mounting disc 41 rotates along with chi strip 3, when the slew velocity of mounting disc 41 is great, location buckle 42 moves to one side of keeping away from mounting disc 41 under the effect of centrifugal force, thereby make location buckle 42 and install the location dogtooth 431 joint on the holding ring 43 of casing lateral wall, thereby realize the auto-lock location to the steel tape, avoided leading to the hand to take place the damage because of the shrink of steel tape is too fast, the security of steel tape in the use has been promoted.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an automatic safe tape measure of locking, includes shell (1), chi spring (2) and chi strip (3), the lateral wall of shell (1) is provided with installation pole (11) that supply chi spring (2) to install, its characterized in that: still including installing auto-lock subassembly (4) inside shell (1), auto-lock subassembly (4) are including installing mounting disc (41) at installation pole (11) lateral wall, articulating location buckle (42) and fixing holding ring (43) at shell (1) lateral wall at mounting disc (41) border department the top of location buckle (42) is provided with joint dogtooth (421), the inner wall of holding ring (43) is provided with location dogtooth (431) of laminating each other with joint dogtooth (421).

2. An automatically locking safety tape measure according to claim 1, wherein: the lateral wall of mounting disc (41) is provided with a locating plate (411), the lateral wall of mounting disc (41) radially is provided with compression spring (44), the one side that joint dogtooth (421) were kept away from in the one end and location buckle (42) of compression spring (44) is connected, and the other end is connected with locating plate (411).

3. An automatically locking safety tape measure according to claim 2, wherein: the lateral wall of location buckle (42) orientation mounting disc (41) is provided with erection column (422), the lateral wall of shell (1) is provided with the articulated ring (412) that supplies erection column (422) to slide the installation, pass through bolt interconnect between articulated ring (412) and erection column (422).

4. An automatically locking safety tape measure according to claim 3, wherein: the side wall of the positioning buckle (42) is provided with a counter bore (423) for embedding a bolt.

5. An automatically locking safety tape measure according to claim 4, wherein: one side of the shell (1) located at the positioning buckle (42) is provided with an adjusting disc (12), and the adjusting disc (12) is provided with a slot (121) for inserting the mounting rod (11).

6. An automatically locking safety tape measure according to claim 5, wherein: the side wall of the shell (1) of the adjusting disc (12) is provided with a threaded hole (13), and the side wall of the adjusting disc (12) is provided with a locking screw rod (122) penetrating through the threaded hole (13).

7. An automatically locking safety tape measure according to claim 6, wherein: and a handle (123) is sleeved on the outer side of the locking screw rod (122).

8. An automatically locking safety tape measure according to claim 7, wherein: the side wall of the adjusting disc (12) is provided with a rubber pad.