Fireproof door handle
By designing a structure that locates the axial position of the lock core in the fire door handle, the position deviation problem caused by the lock core squirming between the handles is solved, and the stability of the lock core and the reliability of the door lock are improved.
Patent Information
- Application Number
- CN202421715703.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-19
AI Technical Summary
After installation, the lock core of the existing fire door handle is prone to rush between the two handles, resulting in axial position offset, which in turn causes the door lock switch to fail, affecting the normal use of the fire door.
A fire door handle is designed, adopting a structure including a lock core, a rotating assembly and a positioning member. Through the cooperation of the shrapnel and the slot, the axial position of the lock core is positioned to reduce the possibility of the lock core moving between the handles.
It effectively improves the position stability of the lock core, reduces the possibility of door lock switch failure, and ensures the normal use of fire doors.
Smart Images
Figure CN222962623U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire door accessories, in particular to a fire door handle. Background Art
[0002] The fire door handle can facilitate users to apply force to open the fire door. The fire door handle mainly consists of a lock core and a handle, etc. The lock core is used to cooperate with the lock tongue to switch the door lock of the fire door. During installation, the lock core connects the handles on both sides of the fire door to make the handles on both sides rotate synchronously. The lock core is usually connected to the handle in an inserted manner. The lock core of the existing fire door handle is prone to move between the two handles after installation, resulting in the axial position deviation of the lock core, causing the cooperation between the lock core and the lock tongue to fail, thus resulting in the malfunction of the door lock and affecting the normal use of the fire door. Content of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the utility model provides a fire door handle, which can position the axial position of the lock core, reduce the possibility of the lock core moving between the two handles, and improve the position stability of the lock core.
[0004] According to an embodiment of the utility model, there is provided a fire door handle, including a lock core and two sets of rotating components. The rotating component includes a handle, a connecting rod and a mounting seat. One end of the handle is fixedly sleeved on the connecting rod. The connecting rod is rotatably connected to the mounting seat. The connecting rod is provided with a jack. One of the sets of rotating components further includes a positioning member. The positioning member is clamped at one end of the connecting rod. The positioning member is provided with an elastic piece. The elastic piece extends out of the side wall of the jack. The two ends of the lock core are respectively inserted into the jacks of the two connecting rods. A clamping groove is formed on the side wall of the lock core. The elastic piece can be clamped in the clamping groove to position the axial position of the lock core. The two mounting seats are fixedly connected by bolts.
[0005] A door handle for a fire door according to an embodiment of the present utility model has at least the following beneficial effects: During installation, first pass the lock core through the opening of the fire door, then insert both ends of the lock core into the insertion holes of two connecting rods respectively, and fixedly connect the two mounting seats through bolts, so that the two mounting seats are fixedly connected to opposite sides of the fire door, thereby completing the installation of the door handle for the fire door. Since the elastic piece extends out of the side wall of the insertion hole, during the process of inserting the lock core into the insertion hole, the lock core will push up the elastic piece, causing the elastic piece to elastically warp, and making the elastic piece abut against the side wall of the lock core and slide until the elastic piece slides to the position of the card slot, and the elastic piece elastically resumes and is clamped in the card slot to position the axial position of the lock core. Since the positioning member is clamped at one end of the connecting rod, and one end of the handle is fixedly sleeved on the connecting rod, the relative position between the lock core and the handle can be fixed, reducing the possibility of the lock core moving between the two handles, thereby improving the position stability of the lock core, and further reducing the possibility of the door lock malfunctioning when being opened and closed.
[0006] According to some embodiments of the present utility model, a plurality of elastic pieces are provided, and the plurality of elastic pieces are arranged at equal intervals along the circumferential direction of the positioning member, and the card slots are arranged along the circumferential direction of the lock core.
[0007] According to some embodiments of the present utility model, a plurality of card slots are provided, and the plurality of card slots are arranged continuously along the axial direction of the lock core.
[0008] According to some embodiments of the present utility model, the shape of the card slot is V-shaped.
[0009] According to some embodiments of the present utility model, a clamping portion protrudes from the side wall of the positioning member close to the connecting rod, and an installation groove is formed in the end face of the connecting rod close to the positioning member, and the clamping portion is clamped in the installation groove.
[0010] According to some embodiments of the present utility model, the positioning member is annular, the elastic piece protrudes from the inner wall of the positioning member along the radial direction of the positioning member, and the side wall of the elastic piece close to the connecting rod abuts against the end face of the connecting rod.
[0011] According to some embodiments of the present utility model, a limiting sleeve abuts against the side wall of the positioning member facing away from the connecting rod, and the limiting sleeve is fixedly connected to the handle.
[0012] According to some embodiments of the present utility model, along the radial direction of the lock core, the depth of the card slot is 0.3 mm.
[0013] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. Description of the Drawings
[0014] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, where:
[0015] Figure 1 is a schematic structural diagram of a fire door handle according to an embodiment of the present utility model;
[0016] Figure 2 is an exploded schematic diagram of a fire door handle according to an embodiment of the present utility model;
[0017] Figure 3 is Figure 2 a partial enlarged view of part A in
[0018] Figure 4 is a partial cross-sectional view of a fire door handle according to an embodiment of the present utility model;
[0019] Figure 5 is Figure 4 a partial enlarged view of part B in
[0020] Figure 6 is a schematic structural diagram of a fire door handle after hiding the handle and the lock core according to an embodiment of the present utility model;
[0021] Figure 7 is a schematic structural diagram of the lock core of a fire door handle according to an embodiment of the present utility model.
[0022] Description of reference numerals:
[0023] Rotating assembly 100, handle 110, connecting rod 120, jack 121, mounting groove 122, mounting seat 130, positioning member 140, elastic piece 141, clamping portion 142, limiting sleeve 150, lock core 200, card slot 210, bolt 300. Detailed implementation manners
[0024] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.
[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc., which relate to the orientation description, is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
[0026] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0027] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0028] It can be understood that, referring to Figures 1 to 7 , a fire door handle of the present utility model includes a lock core 200 and two sets of rotating components 100. The rotating component 100 includes a handle 110, a connecting rod 120, and a mounting seat 130. One end of the handle 110 is fixedly sleeved on the connecting rod 120, the connecting rod 120 is rotatably connected to the mounting seat 130, and the connecting rod 120 is provided with a jack 121; one of the sets of rotating components 100 further includes a positioning member 140, the positioning member 140 is snap-fitted to one end of the connecting rod 120, the positioning member 140 is provided with a spring piece 141, and the spring piece 141 extends out of the side wall of the jack 121; both ends of the lock core 200 are respectively inserted into the jacks 121 of the two connecting rods 120, and a card slot 210 is formed on the side wall of the lock core 200. The spring piece 141 can be snap-fitted into the card slot 210 to position the axial position of the lock core 200, and the two mounting seats 130 are fixedly connected by bolts 300.
[0029] During installation, first pass the lock core 200 through the opening of the fire door, then insert both ends of the lock core 200 into the jacks 121 of the two connecting rods 120 respectively, and fixedly connect the two mounting seats 130 by bolts 300, so that the two mounting seats 130 are fixedly connected to the opposite sides of the fire door, thus completing the installation of the fire door handle. Since the spring piece 141 extends out of the side wall of the jack 121, during the process of inserting the lock core 200 into the jack 121, the lock core 200 will push up the spring piece 141, causing the spring piece 141 to elastically warp, and making the spring piece 141 abut against the side wall of the lock core 200 and slide until the spring piece 141 slides to the position of the card slot 210. The spring piece 141 elastically resumes and is snap-fitted into the card slot 210 to position the axial position of the lock core 200. Since the positioning member 140 is snap-fitted to one end of the connecting rod 120 and one end of the handle 110 is fixedly sleeved on the connecting rod 120, the relative position between the lock core 200 and the handle 110 can be fixed, reducing the possibility of the lock core 200 moving between the two handles 110, so as to improve the position stability of the lock core 200, and further reducing the possibility of the door lock malfunctioning.
[0030] It should be noted that the elastic piece 141 is elastic and can elastically warp towards the opposite sides of the positioning member 140. Therefore, during the process of inserting the lock core 200 into the jack 121, applying a force greater than the anti-deformation force of the elastic piece 141 to one end of the lock core 200 can cause the other end of the lock core 200 to lift the elastic piece 141, thereby causing the elastic piece 141 to elastically warp.
[0031] When the elastic piece 141 is clamped in the card slot 210, the anti-deformation force of the elastic piece 141 can reduce the possibility of the axial position deviation of the lock core 200. Even if the lock core 200 has an axial position deviation, the elastic restoring force of the elastic piece 141 can also drive the lock core 200 to reset, so as to improve the position stability of the lock core 200.
[0032] It can be understood that referring to Figure 3 and Figure 7 , a plurality of elastic pieces 141 are provided, and the plurality of elastic pieces 141 are evenly arranged at intervals along the circumferential direction of the positioning member 140, and the card slots 210 are arranged along the circumferential direction of the lock core 200. Since the card slots 210 are arranged along the circumferential direction of the lock core 200, the plurality of elastic pieces 141 evenly arranged at intervals along the circumferential direction of the positioning member 140 can all be clamped in the card slots 210 to position the axial position of the lock core 200. Positioning the lock core 200 through a plurality of elastic pieces 141 can improve the position stability of the lock core 200 after positioning.
[0033] It can be understood that referring to Figure 5 , a plurality of card slots 210 are provided, and the plurality of card slots 210 are continuously arranged along the axial direction of the lock core 200. By clamping the elastic piece 141 in the card slots 210 at different positions, the positioning position of the lock core 200 can be adjusted, and the requirements for different positioning positions of the lock core 200 can be met, so as to improve the applicability of the fire door handle. In addition, since the plurality of card slots 210 are continuously arranged along the axial direction of the lock core 200, the positioning position of the lock core 200 can be finely adjusted to improve the accuracy of the positioning position of the lock core 200.
[0034] Specifically, referring to Figure 5 , the shape of the card slot 210 is V-shaped. Since the shape of the card slot 210 is V-shaped, the elastic piece 141 can be inserted into or extended out of the card slot 210 along the wall surface of the V-shaped card slot 210, so as to improve the smoothness of the position adjustment of the lock core 200, thereby facilitating the adjustment of the positioning position of the lock core 200, and reducing the collision wear between the elastic piece 141 and the wall surface of the card slot 210 to extend the service life of the elastic piece 141.
[0035] It can be understood that referring to Figures 3 to 5The side wall of the positioning member 140 near the connecting rod 120 is protruded with a clamping portion 142, and the end surface of the connecting rod 120 near the positioning member 140 is provided with a mounting groove 122, and the clamping portion 142 is clamped in the mounting groove 122. By clamping the clamping portion 142 in the mounting groove 122, the positioning member 140 can be clamped in one end of the connecting rod 120, which facilitates the assembly between the positioning member 140 and the connecting rod 120, and can locate the relative position between the connecting rod 120 and the positioning member 140, so that the connecting rod 120 can drive the positioning member 140 to rotate synchronously.
[0036] It is understandable that, referring to Figures 3 to 5 The positioning member 140 is annular, and the spring piece 141 is provided on the inner wall of the positioning member 140 and protrudes along the radial direction of the positioning member 140, and the side wall of the spring piece 141 close to the connecting rod 120 abuts against the end face of the connecting rod 120. By the side wall of the spring piece 141 close to the connecting rod 120 abutting against the end face of the connecting rod 120, the spring piece 141 can be restricted from elastically warping toward the side close to the connecting rod 120, thereby reducing the possibility of the spring piece 141 escaping from the card slot 210, thereby improving the position stability of the lock cylinder 200 after positioning.
[0037] It is understandable that, referring to Figures 3 to 5 The side wall of the positioning member 140 away from the connecting rod 120 abuts against the limiting sleeve 150, and the limiting sleeve 150 is fixedly connected to the handle 110. By the side wall of the positioning member 140 away from the connecting rod 120 abutting against the limiting sleeve 150, the positioning member 140 can be limited from moving in a direction away from the connecting rod 120, thereby improving the position stability of the positioning member 140, and further improving the position stability of the lock core 200 after positioning.
[0038] It is understandable that, referring to Figure 5 , along the radial direction of the lock core 200, the depth of the card slot 210 is 0.3mm. If the depth of the card slot 210 is too large, the structural strength of the lock core 200 will be reduced, and if the depth of the card slot 210 is too small, the card connection firmness between the spring piece 141 and the card slot 210 will be reduced. By setting the depth of the card slot 210 to 0.3mm, the structural strength of the lock core 200 can be ensured while improving the card connection firmness between the spring piece 141 and the card slot 210, thereby improving the position stability of the lock core 200.
[0039] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A fire door handle, characterized in that: include: Two sets of rotating components, the rotating components include a handle, a connecting rod and a mounting seat, one end of the handle is fixedly sleeved on the connecting rod, the connecting rod is rotatably connected to the mounting seat, and the connecting rod is provided with a plug hole; One group of the rotating components further includes a positioning member, the positioning member is clamped on one end of the connecting rod, the positioning member is provided with an elastic sheet, and the elastic sheet extends out of the side wall of the insertion hole; The lock core has two ends which are respectively inserted into the insertion holes of the two connecting rods. The side wall of the lock core is provided with a slot, and the spring piece can be snapped into the slot to locate the axial position of the lock core. The two mounting seats are fixedly connected by bolts.
2. The fire door handle according to claim 1, characterized in that: A plurality of the spring sheets are provided, and the plurality of the spring sheets are evenly spaced and arranged along the circumference of the positioning member, and the locking grooves are arranged along the circumference of the lock core.
3. The fire door handle according to claim 1, characterized in that: The card slots are provided in plurality, and the plurality of card slots are continuously arranged along the axial direction of the lock core.
4. The fire door handle according to claim 3, characterized in that: The shape of the slot is V-shaped.
5. The fire door handle according to claim 1, characterized in that: A clamping portion is protruding from a side wall of the positioning member close to the connecting rod, and a mounting groove is formed on an end surface of the connecting rod close to the positioning member, and the clamping portion is clamped in the mounting groove.
6. The fire door handle according to claim 1, characterized in that: The positioning member is annular, the elastic sheet is protruding along the radial direction of the positioning member and is arranged on the inner wall of the positioning member, and the elastic sheet is close to the side wall of the connecting rod and abuts against the end surface of the connecting rod.
7. The fire door handle according to claim 1, characterized in that: The side wall of the positioning member facing away from the connecting rod abuts against a limiting sleeve, and the limiting sleeve is fixedly connected to the handle.
8. The fire door handle according to claim 1, characterized in that: Along the radial direction of the lock core, the depth of the locking groove is 0.3 mm.