CN208236111U - Door lock - Google Patents

Abstract

The utility model relates to a door lock. The door lock comprises a front shell, a rear shell and a screw, wherein the front shell is provided with a nut, the rear shell is provided with a through hole, the screw is used for penetrating through the through hole and inserting the nut into the rear of the door body, the door lock further comprises a guide pipe, the guide pipe is used for being sleeved on the nut on the front shell, and the outer diameter of the guide pipe is smaller than or equal to the diameter of the through hole in the rear shell. When the door lock is installed, the guide pipe is sleeved on the nut; then the front shell is arranged on the outer side of the door body, and the guide pipe is arranged in the door hole in a penetrating manner; then the rear shell is arranged on the inner side of the door body, and the guide pipe is arranged in the through hole of the rear shell in a penetrating manner; then inserting one side of the screw rear shell far away from the front shell into the guide pipe, and accurately inserting the screw into the threaded hole under the guiding action of the guide pipe; finally, locking screws to firmly connect the front shell and the rear shell to the door body; the installation process of the door lock is easy and quick, and the problems that the difficulty of the installation process of the door lock is high and the time is long are solved.

Description

door lock

technical field

The utility model relates to the technical field necessary for human life, in particular to a door lock.

Background technique

A door lock is a device used to lock a door to prevent others from opening the door. The front shell and the rear shell of the door lock are respectively located on both sides of the door body, and the two are fixed on the door body through screw connection. When installing, first position the front shell on the outside of the door body, then position the rear shell on the inside of the door body, and finally insert the screws through the through holes of the back shell and the door holes in order to thread the nut holes on the front shell. Make the door lock installed on the door body. However, the operator needs to repeatedly align and insert the screws through the through holes and door holes of the rear shell in order to thread the nut holes on the front shell, especially for thicker door bodies, which is time-consuming. The difficulty of the installation process of the door lock is high and the time is long.

Utility model content

Based on this, it is necessary to provide a door lock for the problem that the installation process of the door lock is relatively difficult and takes a long time.

A door lock, comprising a front shell, a rear shell and screws, the front shell has a nut, the rear shell is provided with a through hole, and the screw is used to pass through the through hole and the door body and then insert the nuts,

The door lock further includes a conduit for being socketed on the nut on the front shell, and the outer diameter of the conduit is smaller than or equal to the diameter of the through hole on the rear shell.

The above-mentioned door lock comprises a front shell, a rear shell, screws and conduits, the front shell has nuts, the front shell is arranged on the outside of the door body, the rear shell is arranged on the inside of the door body and is opposite to the front shell; Nuts are inserted behind the holes and the door body to thread the screws to the nuts; the conduit is sleeved on the nut and passed through the through hole, and the conduit is used to be sleeved on the nut on the front shell, and the outer diameter of the conduit is less than or equal to The diameter of the through hole on the back shell is such that the conduit is passed through the through hole and sleeved on the nut, so that the screw can be quickly and accurately inserted into the threaded hole of the nut through the conduit to be threaded with the nut; when installing, first put the conduit sleeve Connect to the nut; then set the front shell on the outside of the door body, and at the same time make the conduit pass through the door hole; then set the rear shell on the inside of the door body, and let the conduit pass through the through hole of the rear shell; Then insert the side of the rear shell of the screw away from the front shell into the conduit, and the screw is accurately inserted into the threaded hole due to the guiding effect of the conduit; finally, the screw is tightened so that the front shell and the rear shell are firmly connected to the door; the above The installation process of the door lock is easy and quick, which solves the problem that the installation process of the door lock is difficult and takes a long time.

In one of the embodiments, the length of the conduit is greater than or equal to 40mm, so that the conduit is inserted through the through hole, the door body and the nut and then protrudes from the door body, which facilitates the installation and removal of the conduit; it can be cut off after the screw is screwed into the nut Extra conduits are used to prevent the conduits from interfering with the door lock during use.

In one of the embodiments, the conduit is made of plastic material, and excess conduit can be cut off with scissors or pliers after the door lock is installed, which is convenient for installation and low in cost.

In one of the embodiments, the first end of the conduit is provided with a stepped hole, and the stepped hole includes a first hole and a second hole extending along its axial direction, and the diameter of the first hole is larger than that of the second hole. The diameter of the hole, the diameter of the first hole is equal to the outer diameter of the nut, the diameter of the second hole is equal to the inner diameter of the nut, and the opening diameter of the second end of the conduit is larger than the second hole The diameter of the nut is matched with the first hole of the stepped hole, so that the conduit is sleeved on the nut. Since the second hole communicates with the first hole, and the diameter of the second hole is equal to the inner diameter of the nut, the screw passes through the conduit quickly and accurately. Insert the nut into the nut to quickly install the screw and the nut; since the diameter of the hole at the second end of the conduit is larger than the diameter of the second hole and greater than or equal to the diameter of the nut of the screw, the nut can enter the conduit after the screw is screwed into the nut In the opening at the second end of the tube, it is convenient to cut off the excess tube later.

In one of the embodiments, the catheter includes a catheter body and a split part, the catheter body is connected to the split part and both are coaxial, and the catheter body is used to be sleeved on the nut; the split There is a cracking groove on the part, and the cracking groove is used for cracking when the screw is inserted and squeezed; when the screw is screwed into the nut through the conduit, the cracked groove of the cracking part is squeezed by the screw. Crack when the force is applied, so that the excess cracked part can be cut off after the screw is screwed into the nut; because the tool is too blunt or the force is not enough to cut off the conduit, the cracked part can be easily cut after being cracked along the squeeze groove and becomes lobes. Improved clipping efficiency of excess conduit.

In one of the embodiments, the crushing groove extends along the axial direction of the catheter body.

In one of the embodiments, there is an included angle between the extension direction of the crushing groove and the axial direction of the catheter body, and the value of the included angle is greater than 0° and less than 90°.

In one of the embodiments, the number of the cracking grooves is multiple, and the multiple cracking grooves are distributed along the circumferential direction of the cracking part, so that the cracking part is split into multiple parts when the screw is inserted and squeezed. There are two lobes distributed along the circumferential direction of the split part, which is beneficial to the rapid cutting off of excess conduits.

In one of the embodiments, a plurality of the cracking grooves are distributed along the circumferential direction of the cracking part at intervals, so that the cracking part is split into a plurality of segments distributed along the circumferential direction of the cracking part when the screw is inserted and pressed. The lobes are more conducive to the rapid clipping of redundant catheters.

Description of drawings

Fig. 1 is the schematic diagram of the door lock of an embodiment;

Fig. 2 is an explosion diagram of the door lock shown in Fig. 1;

Fig. 3 is a schematic diagram of the front shell of the door lock shown in Fig. 1;

Fig. 4 is a connection schematic diagram of nuts, conduits and screws of the door lock shown in Fig. 1;

5 is a schematic diagram of a conduit of a door lock in another embodiment;

Fig. 6 is a schematic diagram of a conduit of a door lock according to another embodiment.

Detailed ways

In order to facilitate the understanding of the present utility model, the door lock will be described more fully below with reference to the relevant drawings. A preferred embodiment of the door lock is shown in the accompanying drawings. However, the door lock can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the door lock more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terms used in the description of the door lock herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIGS. 1 to 3 , a door lock 10 according to an embodiment includes a front shell 100 , a rear shell 200 , screws 300 and conduits 400 . The front case 100 has a nut 100b. The rear shell 200 defines a through hole 210 , and the screw 300 is used to pass through the through hole 210 and the door body 20 to insert the nut 100 b. The conduit 400 is used to be sleeved on the nut 100b on the front shell 100 . The outer diameter of the conduit 400 is smaller than or equal to the diameter of the through hole 210 on the rear housing 200 .

In this embodiment, the front case 100 includes a connected body 100a and a nut 100b. The main body is used to be disposed on the outside of the door body 20 . The rear shell 200 is configured to be disposed inside the door body 20 . A threaded hole 110 matching the screw 300 is defined at the end of the nut 100 b facing away from the body. The rear case 200 defines a through hole 210 . The screw 300 is used to pass through the door hole 22 of the door body 20 . The conduit 400 is passed through the through hole 210 , and the conduit 400 is also used to pass through the door hole 22 , and the conduit 400 is sleeved on the nut 100 b, and the screw 300 is also passed through the conduit 400 .

The above-mentioned door lock 10 includes a front shell 100, a rear shell 200, a screw 300 and a conduit 400, the front shell 100 has a nut 100b, the front shell 100 is arranged on the outside of the door body 20, and the rear shell 200 is arranged on the inside of the door body 20 And opposite to the front shell 100; the screw 300 is inserted through the through hole 210 and the door body 20 and then inserted into the nut 100b, so that the screw 300 is threadedly connected with the nut 100b; the conduit 400 is sleeved on the nut 100b and penetrated in the through hole 210, The conduit 400 is used to be sleeved on the nut 100b on the front shell 100, and the outer diameter of the conduit 400 is less than or equal to the diameter of the through hole 210 on the rear shell 200, so that the conduit 400 is passed through the through hole 210 and sleeved on the nut 100b, so that the screw 300 can be quickly and accurately inserted into the threaded hole 110 of the nut 100b through the conduit 400 to be threadedly connected with the nut 100b; when installing, firstly, the conduit 400 is sleeved on the nut 100b; then the front shell 100 is set on the door The outer side of the body 20, while the conduit 400 is threaded in the door hole; then the rear shell 200 is arranged on the inside of the door body 20, and the conduit 400 is threaded in the through hole 210 of the rear shell 200; then the screw 300 is rear The side of the shell 200 away from the front shell 100 is inserted into the conduit 400, and due to the guiding effect of the conduit 400, the screw 300 is accurately inserted into the threaded hole 110; finally, the screw 300 is tightened so that the front shell 100 and the rear shell 200 are firmly connected to the On the door body 20 ; the installation process of the above-mentioned door lock 10 is easy and fast, which solves the problem that the installation process of the door lock 10 is difficult and takes a long time.

In an embodiment, the length of the conduit 400 is greater than or equal to 40mm, so that the conduit 400 is inserted through the through hole 210, the door body 20 and the nut 100b and then extends out of the door body 20, which facilitates the installation and removal of the conduit 400; the nut can be screwed into the screw 300 After 100b, cut off the redundant conduit 400 to prevent the conduit 400 from interfering with the door lock 10 during use.

In this embodiment, the conduit 400 is made of plastic material, and the redundant conduit 400 can be cut off with scissors or pliers after the door lock 10 is installed, which is convenient for installation and low in cost.

As shown in FIG. 4 , in this embodiment, the first end of the catheter 400 is provided with a stepped hole 410, and the stepped hole 410 includes a first hole 412 and a second hole 414 extending along its axial direction, that is, the first hole 412 and the second hole 414 The second hole 414 communicates. The diameter of the first hole 412 is larger than the diameter of the second hole 414 . The diameter of the first hole 412 is equal to the outer diameter of the nut 100b. The diameter of the second hole 414 is equal to the inner diameter of the nut 100b. The diameter of the opening 420 at the second end of the conduit 400 is greater than the diameter of the second hole 414 and greater than or equal to the diameter of the nut of the screw 300. The nut 100b cooperates with the first hole 412 of the stepped hole 410 so that the conduit 400 is sleeved on the nut 100b, since the second hole 414 communicates with the first hole 412, and the diameter of the second hole 414 is equal to the inner diameter of the nut 100b, the screw 300 is inserted into the nut 100b quickly and accurately through the conduit 400, so that the screw 300 and the nut 100b Quick installation. Since the diameter of the opening 420 at the second end of the conduit 400 is greater than the diameter of the second hole 414 and greater than or equal to the diameter of the nut of the screw 300, the nut can enter the opening at the second end of the conduit 400 after the screw 300 is screwed into the nut 100b. In the hole 420, it is convenient to cut off the redundant catheter 400 later.

As shown in FIG. 5, in other embodiments, the catheter 400 includes a catheter body 400a and a split portion 400b. The catheter body 400a is connected to the split part 400b and the two are coaxial. The conduit body 400a is used to be sleeved on the nut 100b. The cracking part 400b is provided with a crushing groove 430, and the crushing groove 430 is used for cracking when the screw 300 is inserted and squeezed. When the screw 300 is screwed into the nut 100b through the conduit 400, the cracking groove 430 of the cracking part 400b is cracked when the screw 300 is inserted and squeezed, so that the redundant cracking part 400b is cut off after the screw 300 is screwed into the nut 100b; When cutting off the conduit 400 , there is a situation that the tool cannot be cut due to blunt tools or insufficient force. The cracked part 400 b is cracked along the squeeze groove 430 and becomes lobes and is easy to cut off, which improves the efficiency of cutting off the redundant conduit 400 . The stepped hole in this embodiment is opened at the end of the catheter body 400a away from the split portion 400b , the opening 420 is opened at the catheter body 400a and the split portion 400b , and the squeeze groove 430 communicates with the opening 420 .

As shown in FIG. 5 , in one embodiment, the crushing groove 430 extends along the axial direction of the catheter body 400 a. It can be understood that the crushing groove 430 is not limited to extending along the axial direction of the catheter body 400a. In other embodiments, there is an included angle between the extending direction of the crushing groove 430 and the axial direction of the catheter body 400a, and the value of the included angle is greater than 0° and less than 90°.

As shown in FIG. 6 , in another embodiment, there are multiple crushing grooves 430 . A plurality of crushing grooves 430 are distributed along the circumferential direction of the cracking part 400b, so that the cracking part 400b is split into a plurality of lobes distributed along the circumferential direction of the cracking part 400b when the screw 300 is inserted and squeezed, which is beneficial to the removal of redundant conduits 400 Quick cut.

Furthermore, a plurality of crushing grooves 430 are distributed at intervals along the circumferential direction of the cracking part 400b, so that the cracking part 400b is split into a plurality of lobes distributed along the circumferential direction of the cracking part 400b when the screw 300 is inserted and pressed, and more It is beneficial to quickly cut off the redundant catheter 400 .

The various technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be interpreted as a limitation on the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. A door lock, comprising a front shell, a rear shell and screws, the front shell has a nut, the rear shell is provided with a through hole, and the screw is used to be inserted into the through hole and the door body The nut is characterized in that, The door lock further includes a conduit for being socketed on the nut on the front shell, and the outer diameter of the conduit is smaller than or equal to the diameter of the through hole on the rear shell. 2. The door lock according to claim 1, wherein the length of the conduit is greater than or equal to 40mm. 3. The door lock according to claim 1 or 2, wherein the conduit is made of plastic material. 4. The door lock according to claim 2, wherein the first end of the conduit is provided with a stepped hole, and the stepped hole includes a first hole and a second hole extending along its axial direction, the first hole The diameter of a hole is larger than the diameter of the second hole, the diameter of the first hole is equal to the outer diameter of the nut, the diameter of the second hole is equal to the inner diameter of the nut, the second end of the conduit The diameter of the opening is larger than the diameter of the second hole. 5. The door lock according to claim 2, wherein the conduit comprises a conduit body and a split portion, the conduit body is connected to the split portion and both are coaxial, and the conduit body is used for socketing On the nut; the cracking part is provided with a cracking groove, and the cracking groove is used for cracking when the screw is inserted and squeezed. 6. The door lock according to claim 5, characterized in that, the crushing groove extends along the axial direction of the conduit body. 7. The door lock according to claim 5, characterized in that there is an included angle between the extension direction of the squeeze groove and the axial direction of the conduit body, and the value of the included angle is greater than 0° and less than 90°. 8 . The door lock according to claim 5 or 6 , characterized in that, the number of the crushing grooves is multiple, and the plurality of the crushing grooves are distributed along the circumferential direction of the cracking part. 9 . 9. The door lock according to claim 8, characterized in that, a plurality of said crushing grooves are distributed at intervals along the circumferential direction of said cracking part.