A steel-wood mixed thermal insulation door body

Abstract

The present invention discloses a steel-wood hybrid heat-insulating door body, comprising a fingerprint lock, a steel door shell and a wooden door panel, wherein an opening is arranged at the end of the steel door shell facing indoors, and a base plate is matched at the opening, and the base plate slides along the steel door shell, and the wooden door panel is fixedly installed through the base plate, and the fingerprint lock is installed through the steel door shell, and a handle of the fingerprint lock passes through the base plate and the wooden door panel, and the base plate slides along the handle of the fingerprint lock, and further comprises a power supply, which is built into the steel door shell, and a wiring harness connected to the power supply is inserted from the front end of the wooden door panel, and the outside of the wiring harness is wrapped and protected by a wire tube, and the fingerprint lock is powered by the power supply, and a frame-shaped sealing strip is matched between the steel door shell and the base plate, and a driving device is arranged in the steel door shell; the device can increase the sealing performance and can easily close the door.

Description

Technical Field

[0001] The invention relates to a steel-wood mixed thermal insulation door body. Background Art

[0002] In terms of the function of the door, it can be mainly divided into main door, entrance door, interior door, explosion-proof door, explosion-resistant door, fireproof door, etc. Entrance door is also called anti-theft door. Most houses are installed with entrance door when they are completed. Some consumers will replace it for safety and other reasons. Entrance door mainly includes pure steel entrance door and armored door. Armored door is a high-grade entrance door. Its main feature is that it does not use traditional surface treatment methods, but adds a layer of wood veneer on the surface of steel entrance door. This not only ensures the safety factor of the entrance door, but also greatly improves the grade of the door. At the same time, it can also better coordinate with the interior decoration.

[0003] However, in the prior art, the heat preservation of armored doors is not as good as that of wooden doors, so more fillers need to be filled inside the armored doors to ensure the heat preservation of the armored doors.

[0004] However, after the armored door is closed, there will be a small gap between it and the door frame. Due to the matching error between the lock tongue and the lock hole, the armored door and the door frame are not sealed tightly, resulting in air leakage, making the air exchange between indoor and outdoor areas relatively insufficient, and the thermal insulation is relatively insufficient.

[0005] The existing solution is to increase the thickness of the sealing strip. However, after the thickness of the sealing strip is increased, it protrudes to the outside of the door body, so that greater force is required to close the door. The lock tongue often fails to fit into the lock hole, causing the fingerprint lock motor to operate repeatedly, increasing the damage rate.

[0006] Based on the above problems, we designed a steel-wood hybrid insulation door body that can increase sealing and can be easily closed. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a steel-wood hybrid thermal insulation door body which can increase the sealing performance and can be easily closed.

[0008] To solve the above problems, the present invention adopts the following technical solutions:

[0009] A steel-wood hybrid thermal insulation door body comprises a fingerprint lock, a steel door shell and a wooden door panel, wherein an opening is arranged at the end of the steel door shell facing the indoor room, and a base plate is matched at the opening, and the base plate slides along the steel door shell, and the wooden door panel is fixedly installed through the base plate, and the fingerprint lock is installed through the steel door shell, and the handle of the fingerprint lock passes through the base plate and the wooden door panel, and the base plate slides along the handle of the fingerprint lock, and also comprises a power supply, which is built into the steel door shell, and a wiring harness connected to the power supply is inserted from the front end of the wooden door panel, and the outside of the wiring harness is wrapped and protected by a wire tube, and the fingerprint lock is powered by the power supply, and a frame-shaped sealing strip is matched between the steel door shell and the base plate, and a driving device is arranged in the steel door shell, and the driving device is powered by the power supply, and when the driving device is running, the base plate is driven to move toward the direction of the steel door shell, and the sealing strip is compressed and expands outward, and the expanded sealing strip is sealed with the door frame.

[0010] Preferably, more than two layers of inner steel plates are arranged inside the steel door shell, a cavity is formed between the innermost layer of inner steel plate and the steel door shell, and thermal insulation material is filled between two adjacent layers of inner steel plates. A convex edge portion is arranged at the opening of the steel door shell, and the convex edge portion partially protrudes outward to the outside of the steel door shell, so that the steel door shell is limited by the groove on the inner side of the door frame when the door is closed, and the convex edge portion partially extends to the inside of the steel door shell, and a frame plate is arranged at the rear of the base plate, and the frame plate fits with the convex edge portion and can slide along the convex edge portion, and corresponding card grooves are arranged on the opposite surfaces of the convex edge portion and the base plate, and the sealing strip is fixed by the card groove.

[0011] Preferably, the thermal insulation material is thermal insulation cotton or a foamed thermal insulation layer.

[0012] Preferably, a guide seat is installed through the inner steel plate, and a second guide rod matching the guide seat is provided at the inner end surface of the base plate.

[0013] Preferably, a hollow air cavity is provided inside the sealing strip, an air pump is installed inside the steel door shell, the air pump is powered by the power supply, a pressure gauge connected to the air cavity and a charging and discharging switch connected to the air pump are embedded on the surface of the wooden door panel.

[0014] Preferably, the driving device includes a body and a telescopic rod, the body has a through slot penetrating laterally, a through hole connected to the through slot is arranged on the front end surface of the body, a guide block is arranged on the hole wall of the through hole, a sliding rod is slidably matched in the through hole, the sliding rod has a guide slot matching the guide block, the end of the sliding rod away from the body is connected to the base plate, the end of the sliding rod away from the base plate is inserted into the body and matched with a force-bearing plate, the front end of the force-bearing plate is obliquely provided with a passive plate, the telescopic rod is installed through the inner steel plate, and the telescopic end of the telescopic rod is installed A fork plate is installed, and a pushing block is arranged on the inner side of the fork plate. When the telescopic rod extends toward the direction of the main body, the pushing block slides in from the lower end of the passive plate. At this time, the pushing block gradually acts on the passive plate, so that the force-bearing plate slides toward the direction of the inner steel plate. At this time, the base plate slides and compresses the sealing strip. The telescopic rod is connected to the power supply and is linked with the fingerprint lock. When the fingerprint lock is closed, the telescopic rod extends outward, and when the fingerprint lock is unlocked, the telescopic rod retracts. A spring is arranged on the sliding rod, and the spring acts between the base plate and the main body.

[0015] Preferably, a first through hole is provided at the upper and lower ends of the main body, and a first sliding rod is slidably engaged through the first through hole, one end of the first sliding rod is inserted into the main body after passing through the first through hole, and a first passive plate is provided at the end, and a locking rod is engaged with the other end of the first sliding rod, and the first passive plate cooperates with the fork plate, and when the fork plate is extended, the first passive plates on the upper and lower sides are pushed to move outward, and the locking rod is then extended outward and inserted into the door frame, and a first spring is sleeved on the first sliding rod, and the first spring acts between the first passive plate and the main body, and a limiting ring is sleeved on the first sliding rod, and the limiting ring is limited to the outside of the main body, and a first guide rod is provided at the end of the first passive plate away from the passive plate, and the first guide rod vertically penetrates the main body.

[0016] Preferably, active push blocks are provided at the upper and lower end surfaces of the fork plate, and the height of the active push blocks gradually increases in the direction away from the main body. A force-bearing ball head is provided on the side of the first passive plate facing the fork plate, and when the active push block is inserted toward the main body, the force-bearing ball head cooperates with the active push block.

[0017] Preferably, a plane portion is provided on the top of the active push block, and an arc groove for positioning the force-bearing ball head is processed on the plane portion.

[0018] Preferably, the telescopic rod is an electric telescopic rod.

[0019] The beneficial effects of the present invention are:

[0020] Advantage 1: This device uses an outer steel door shell, which acts as armor and increases protection capabilities. The inner side uses a base plate to support a wooden door panel. The wooden door panel has poor thermal conductivity, which reduces the temperature exchange between indoor and outdoor.

[0021] The second advantage is that a clamped sealing strip is adopted. Under normal circumstances, the base plate rebounds and loses its clamping effect on the sealing strip after rebounding. The sealing strip retracts into between the steel door shell and the base plate. After closing the door, the driving device drives the base plate to move, and the base plate clamps the sealing strip, so that the sealing strip bulges outward and fits the door frame to avoid air leakage, achieving a technical effect of windproof.

[0022] Advantage three, when the fingerprint lock is in the closed state, the displacement of the fork plate causes the upper and lower locking rods to be pushed outward and inserted into the top and bottom lock holes of the door frame respectively, completing further locking and playing a role in preventing theft.

[0023] Advantage four: the interior is separated by inner steel plates and filled with insulation materials to increase thermal insulation and sound insulation.

[0024] Advantage five: the device has a simple structure, low cost and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a partial cross-sectional view of the present invention;

[0027] Figure 2 is a three-dimensional diagram of the device;

[0028] Figure 3 is a perspective view of a driving device;

[0029] Figure 4 This is the enlarged view of point A;

[0030] Figure 5 This is an enlarged view of point B;

[0031] Figure 6 A three-dimensional image of the main body;

[0032] Figure 7 It is the enlarged view of point C;

[0033] Figure 8 is a schematic diagram of the upper and lower locking rods;

[0034] Fig. 9 is a three-dimensional diagram of the passive panel;

[0035] Fig.10 A three-dimensional diagram of a fork plate. DETAILED DESCRIPTION

[0036] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0037] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0038] In the description of the present invention, it is necessary to understand that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0039] In addition, in the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "disposed", "socketed", "connected", "through", "plugged" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The steel-wood hybrid thermal insulation door body shown includes a fingerprint lock 1, a steel door shell 2 and a wooden door panel 3. The steel door shell 2 is provided with an opening at the end facing the room, and a base plate 4 is matched at the opening. The base plate 4 slides along the steel door shell 2, and the wooden door panel 3 is fixedly installed through the base plate 4. The fingerprint lock 1 is installed through the steel door shell 2, and the handle of the fingerprint lock 1 passes through the base plate 4 and the wooden door panel 3, and the base plate 4 slides along the handle of the fingerprint lock 1. It also includes a power supply, and the power supply is built into the steel door shell 2. A wiring harness connected to the power supply is inserted from the front end of the wooden door panel 3, and the outside of the wiring harness is wrapped and protected by a wire tube 5. The fingerprint lock 1 is powered by the power supply, and a frame-shaped sealing strip 6 is provided between the steel door shell 2 and the base plate 4. A driving device 7 is provided in the steel door shell 2, and the driving device 7 is powered by the power supply. When the driving device 7 is running, the base plate 4 is driven to move toward the direction of the steel door shell 2. At this time, the sealing strip 6 expands outward after being compressed, and the expanded sealing strip 6 is sealed with the door frame.

[0042] In the above technical solution, the steel door shell 2 is rotatably matched with the door frame and a gap is formed between the steel door shell 2 and the door frame, so that there is sufficient margin when the thermal insulation door body is closed, making it easier to close.

[0043] After closing the door, the fingerprint lock 1 is in a locked state. At this time, the driving device 7 drives the substrate 4 to move toward the steel door shell 2. The sealing strip 6 is squeezed by the displacement, so that the sealing strip 6 bulges outward to form a seal between the door frame and the door, avoiding air leakage and achieving the technical effects of heat preservation and sound insulation.

[0044] See also Figure 4 As shown, the interior of the steel door shell 2 is provided with more than two layers of inner steel plates 21, a cavity 232 is formed between the innermost layer of inner steel plate 21 and the steel door shell 2, and the insulation material 22 is filled between the two adjacent layers of inner steel plates 21, and a convex portion 23 is provided at the opening of the steel door shell 2, and the convex portion 23 partially protrudes to the outside of the steel door shell 2, so that the steel door shell 2 is limited by the groove on the inner side of the door frame when the door is closed, and the convex portion 23 partially extends to the interior of the steel door shell 2, and a frame plate 41 is provided at the rear of the base plate 4, and the frame plate 41 fits with the convex portion 23 and can slide along the convex portion 23, and corresponding card grooves are provided on the opposite surfaces of the convex portion 23 and the base plate 4, and the sealing strip 6 is fixed by the card groove.

[0045] The thermal insulation material 22 is thermal insulation cotton or a foamed thermal insulation layer.

[0046] In the above technical solution, the inner steel plate 21 is used to increase the strength, and the thermal insulation material 22 is filled to increase the thermal insulation effect and sound insulation effect of the door body.

[0047] See also Figure 5 As shown, a guide seat 2210 is installed through the inner steel plate 21 , and a second guide rod 4410 matching the guide seat 2210 is provided at the inner end surface of the base plate 4 .

[0048] The technical effect of the above technical solution is to support the substrate 4.

[0049] See also Figure 1 and Figure 4 As shown, a hollow air cavity 601 is provided inside the sealing strip 6, an air pump 602 is installed inside the steel door shell 2, the air pump 602 is powered by the power supply, and a pressure gauge 603 connected to the air cavity 601 and a charging and discharging switch 604 connected to the air pump 602 are embedded on the surface of the wooden door panel 3.

[0050] The air pressure in the sealing strip is monitored in real time by the pressure gauge 603. When the air pressure is insufficient, the air is inflated by the air pump 602. The air pump 602 is connected to the air cavity 601 by an air pipe, and a valve body needs to be installed on the air pipe to prevent air from escaping after inflation.

[0051] See also Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the driving device 7 includes a body 701 and a telescopic rod 709, the body 701 has a through slot 702 that penetrates laterally, a through hole 703 connected to the through slot 702 is arranged on the front end surface of the body 701, a guide block 704 is arranged on the hole wall of the through hole 703, a sliding rod 705 is slidably matched in the through hole 703, the sliding rod 705 has a guide groove 706 that matches the guide block 704, the end of the sliding rod 705 away from the body 701 is connected to the base plate 4, the end of the sliding rod 705 away from the base plate 4 is inserted into the body 701 and matched with a force plate 707, the front end of the force plate 707 is obliquely provided with a passive plate 708, the telescopic rod 709 is installed through the inner steel plate 21, the telescopic rod A fork plate 710 is installed at the telescopic end of 709, and a pushing block 711 is arranged on the inner side of the fork plate 710. When the telescopic rod 709 extends toward the direction of the main body 701, the pushing block 711 slides in from the lower end of the passive plate 708. At this time, the pushing block 711 gradually acts on the passive plate 708, so that the force-bearing plate 707 slides toward the direction of the inner steel plate 21. At this time, the base plate 4 slides and compresses the sealing strip 6. The telescopic rod 709 is connected to the power supply and linked with the fingerprint lock 1. When the fingerprint lock 1 is closed, the telescopic rod 709 extends outward. When the fingerprint lock 1 is unlocked, the telescopic rod 709 retracts. A spring 771 is arranged on the sliding rod 705, and the spring 771 acts between the base plate 4 and the main body 71.

[0052] In the above technical solution, the extension of the telescopic rod 709 drives the force-bearing plate 707 to move inward, thereby pulling the base plate 4, so that the base plate 4 completes the extrusion of the sealing strip.

[0053] When the fingerprint lock 1 is unlocked, the telescopic rod 709 retracts, and the sealing strip rebounds and the spring 771 resets, causing the substrate 4 to return to the initial position.

[0054] See also Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, the upper and lower ends of the body 701 are both provided with first through holes, and a first sliding rod 713 is slidably engaged through the first through hole. One end of the first sliding rod 713 is inserted into the body 701 after passing through the first through hole, and a first passive plate 714 is provided at the end. The other end of the first sliding rod 713 is engaged with a locking rod 715. The first passive plate 714 is engaged with the fork plate 710. When the fork plate 710 is extended, the first passive plates 714 on the upper and lower sides are pushed to move outward. At this time, The locking rod 715 extends outward and is inserted into the door frame. A first spring 716 is sleeved on the first sliding rod 713. The first spring 716 acts between the first passive plate 714 and the main body 701. A limiting ring 717 is sleeved on the first sliding rod 713. The limiting ring 717 is limited to the outside of the main body 701. A first guide rod 797 is provided at the end of the first passive plate 714 away from the passive plate 708. The first guide rod 797 vertically penetrates the main body 701.

[0055] In the above technical solution, the sliding of the fork plate is utilized to realize the locking of the door body and the door frame at the upper and lower positions, thereby increasing the anti-theft and robbery capability of the door body.

[0056] See also Figure 3 , Figure 8 and Fig.10 As shown, active push blocks 7771 are provided at the upper and lower end surfaces of the fork plate 710, and the height of the active push block 7771 gradually increases in the direction away from the main body 701. A force-bearing ball head 7772 is provided on the side of the first passive plate 714 facing the fork plate 710. When the active push block 7771 is inserted into the main body 701, the force-bearing ball head 7772 cooperates with the active push block 7771.

[0057] See also Figure 8 and Fig.10 As shown, a plane portion 7773 is provided on the top of the active push block 7771 , and an arc groove 7774 for positioning the force-bearing ball head 7772 is processed on the plane portion 7773 .

[0058] The telescopic rod 709 is an electric telescopic rod.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel-wood hybrid thermal insulation door body, comprising a fingerprint lock (1), characterized in that: The invention also comprises a steel door shell (2) and a wooden door panel (3), wherein an opening is arranged at the end of the steel door shell (2) facing the interior of the room, and a base plate (4) is provided at the opening, wherein the base plate (4) slides along the steel door shell (2), the wooden door panel (3) is fixedly installed through the base plate (4), the fingerprint lock (1) is installed through the steel door shell (2), the handle of the fingerprint lock (1) passes through the base plate (4) and the wooden door panel (3), and the base plate (4) slides along the handle of the fingerprint lock (1), and also comprises a power supply, wherein the power supply is built into the steel door shell (2) and is connected to the wooden door panel The front end of (3) is inserted into a wiring harness connected to the power supply, and the outside of the wiring harness is wrapped and protected by a wire tube (5). The fingerprint lock (1) is powered by the power supply. A frame-shaped sealing strip (6) is provided between the steel door shell (2) and the base plate (4). A driving device (7) is provided inside the steel door shell (2). The driving device (7) is powered by the power supply. When the driving device (7) is in operation, the base plate (4) is driven to move toward the steel door shell (2). At this time, the sealing strip (6) is compressed and expands outwards, and the expanded sealing strip (6) is sealed with the door frame. wherein the steel door shell (2) is provided with more than two layers of inner steel plates (21), a cavity (232) is formed between the innermost layer of the inner steel plate (21) and the steel door shell (2), a heat-insulating material (22) is filled between two adjacent layers of the inner steel plates (21), a convex edge portion (23) is provided at the opening of the steel door shell (2), the convex edge portion (23) partially protrudes outward to the outside of the steel door shell (2), so that the steel door shell (2) is limited by the groove on the inner side of the door frame when the door is closed, the convex edge portion (23) partially extends to the inside of the steel door shell (2), a frame plate (41) is provided at the rear of the base plate (4), the frame plate (41) fits the convex edge portion (23) and can slide along the convex edge portion (23), and corresponding grooves are provided on the opposite surfaces of the convex edge portion (23) and the base plate (4), and the sealing strip (6) is fixed by the groove; The driving device (7) comprises a body (701) and a telescopic rod (709), wherein the body (701) has a through slot (702) penetrating laterally, a through hole (703) connected to the through slot (702) is arranged on the front end surface of the body (701), a guide block (704) is arranged at the hole wall of the through hole (703), a sliding rod (705) is slidably matched in the through hole (703), the sliding rod (705) has a guide slot (706) matched with the guide block (704), the end of the sliding rod (705) away from the body (701) is connected to the base plate (4), the end of the sliding rod (705) away from the base plate (4) is inserted into the body (701) and matched with a force-bearing plate (707), the front end of the force-bearing plate (707) is obliquely provided with a passive plate (708), the telescopic rod (709) is installed through the inner steel plate (21), and the telescopic rod (709) is installed in a plurality of ways. A fork plate (710) is installed at the telescopic end of the fork plate (709), and a pushing block (711) is arranged on the inner side of the fork plate (710). When the telescopic rod (709) extends toward the main body (701), the pushing block (711) slides in from the lower end of the passive plate (708). At this time, the pushing block (711) gradually acts on the passive plate (708), so that the force-bearing plate (707) slides toward the inner steel plate (21). At this time, the base plate (4) slides and compresses the sealing strip (6), the telescopic rod (709) is connected to the power supply and linked with the fingerprint lock (1), when the fingerprint lock (1) is closed, the telescopic rod (709) extends outward, and when the fingerprint lock (1) is unlocked, the telescopic rod (709) retracts, and a spring (771) is provided on the sliding rod (705), and the spring (771) acts between the base plate (4) and the body (701).

2. The steel-wood hybrid thermal insulation door body according to claim 1 is characterized in that: The thermal insulation material (22) is thermal insulation cotton or a foamed thermal insulation layer.

3. The steel-wood hybrid thermal insulation door body according to claim 1 is characterized in that: A guide seat (2210) is installed through the inner steel plate (21), and a second guide rod (4410) matching the guide seat (2210) is provided at the inner end surface of the base plate (4).

4. The steel-wood hybrid thermal insulation door body according to claim 1 is characterized in that: A hollow air cavity (601) is provided inside the sealing strip (6), an air pump (602) is installed inside the steel door shell (2), the air pump (602) is powered by the power supply, and a pressure gauge (603) connected to the air cavity (601) and a charge and discharge switch (604) connected to the air pump (602) are embedded on the surface of the wooden door panel (3).

5. The steel-wood hybrid thermal insulation door body according to claim 1 is characterized in that: A first through hole is provided at the upper and lower ends of the body (701), and a first sliding rod (713) is slidably engaged through the first through hole. One end of the first sliding rod (713) is inserted into the body (701) through the first through hole, and a first passive plate (714) is provided at the end. The other end of the first sliding rod (713) is engaged with a locking rod (715). The first passive plate (714) is engaged with the fork plate (710). When the fork plate (710) is extended, the first passive plates (714) on the upper and lower sides are pushed outward. At this time, the locking rod (715) is engaged with the fork plate (710). 15) extends outward and is inserted into the door frame, a first spring (716) is sleeved on the first sliding rod (713), the first spring (716) acts between the first passive plate (714) and the main body (701), a limiting ring (717) is sleeved on the first sliding rod (713), the limiting ring (717) is limited to the outside of the main body (701), and a first guide rod (797) is provided at the end of the first passive plate (714) away from the passive plate (708), and the first guide rod (797) vertically penetrates the main body (701).

6. The steel-wood hybrid thermal insulation door body according to claim 5 is characterized in that: Active push blocks (7771) are provided at the upper and lower end surfaces of the fork plate (710), and the height of the active push block (7771) gradually increases in the direction away from the main body (701). A force-bearing ball head (7772) is provided on the side of the first passive plate (714) facing the fork plate (710), and when the active push block (7771) is inserted into the main body (701), the force-bearing ball head (7772) cooperates with the active push block (7771).

7. The steel-wood hybrid thermal insulation door body according to claim 6 is characterized by: A plane portion (7773) is provided on the top of the active push block (7771), and an arc groove (7774) for positioning the force-bearing ball head (7772) is processed on the plane portion (7773).

8. The steel-wood hybrid thermal insulation door body according to claim 1 is characterized by: The telescopic rod (709) is an electric telescopic rod.

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