Manual operation safety door

Abstract

The utility model belongs to a safety protection device, and particularly relates to a manual operation safety door which comprises a first supporting piece and a second supporting piece. The telescopic door blocking assembly is arranged between the first supporting piece and the second supporting piece and comprises two telescopic beams arranged in parallel in a spaced mode. The two ends of the connecting frame are hinged to the adjacent ends of the two telescopic beams correspondingly, and the other ends of the telescopic beams are hinged to the first supporting pieces correspondingly; one end of the pneumatic spring rod is hinged to the lower telescopic beam, and the other end of the pneumatic spring rod is hinged to the connecting frame; the buffering supporting piece is arranged on the second supporting piece, and when the safety door is in a closed state, the bottom of the connecting frame is horizontally supported on the buffering supporting piece; the limiting assembly is arranged on the first supporting piece and used for limiting movement of the door blocking assembly when the safety door is in the closed or opened state. The manual operation safety door is light in structure, capable of being opened and closed easily with one hand, safe and free of clamping injury in the using process, and capable of adjusting the width of the manual operation safety door.

Description

TECHNICAL FIELD

[0001] The utility model belongs to safety device, especially involve a kind of manual operation safety door. BACKGROUND

[0002] In chemical industry, warehousing, logistics and other industries, factory building, warehouse and loading and unloading wharf and other places usually store a large number of dangerous chemicals, heavy equipment or flammable and explosive materials, and the safety management of its entrance is very important. Although the traditional safety door can provide basic barrier function as the main physical isolation device, there are many technical defects in practical application.

[0003] The heavy structure safety door widely used at present mainly relies on the door body weight or mechanical locking device to realize the protection function. First, due to the use of thick metal frame and solid door plate structure, the door body weight often exceeds 100 kg, combined with the friction resistance of hinge and other moving parts, it is necessary to exert more than 50 N of force to open and close the operation. This not only causes single operation difficulty, but also may delay the key rescue time due to the difficulty of opening in the case of emergency evacuation. Secondly, the mechanical structure of this kind of safety door has obvious pinch point risk. Test data shows that the traditional safety door may produce a high pressure of 200 N in the closing process, which is far beyond the human body bearing limit. More seriously, when integrated with automatic system, due to the high failure rate of position sensor of 0.5%, it is easy to cause control failure accident.

[0004] In addition, the existing safety door generally adopts fixed width design, usually 1.5 m or 2 m standard specification, which is difficult to adapt to the diversified opening requirements of different places. INVENTION CONTENTS

[0005] The main technical problem to be solved by the utility model is to provide a manual operation safety door with lightweight structure, easy to open and close with one hand, safe and no pinch in use, and adjustable width.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A kind of manual operation safety door, characterized in that, comprising: first support and second support of parallel interval arrangement;

[0008] Expandable door stop component is arranged between first support and second support, the door stop component includes: two parallel interval arrangement expandable beams, and when safety door is in closed state, expandable beam and first support and second support are vertically arranged;

[0009] Connecting frame, two ends of connecting frame are hinged with adjacent ends of two expandable beams respectively, and the other end of expandable beam is hinged with first support respectively;

[0010] A pneumatic spring rod is hinged at one end to the lower telescopic beam and at the other end to the connecting frame, and is arranged obliquely to provide damping force;

[0011] A buffer support is arranged on the second support, and the bottom of the connecting frame is horizontally supported on the buffer support when the safety door is in the closed state;

[0012] A limiting assembly is arranged on the first support, and is used for limiting the movement of the door blocking assembly when the safety door is in the closed or open state.

[0013] The utility model further optimizes the above technical solutions as follows:

[0014] The telescopic beam comprises an outer tube, and at least one positioning hole is formed in the top of the outer tube away from the first support;

[0015] An inner tube is sleeved in the outer tube, and a plurality of adjusting holes are uniformly formed in the length direction of the inner tube;

[0016] A locking mechanism is arranged between the outer tube and the inner tube.

[0017] Further optimization: the locking mechanism comprises a plurality of bolt and nut assemblies, the bolts pass through the positioning holes and the corresponding adjusting holes in sequence and are locked with the nuts to fix the relative position of the inner tube and the outer tube.

[0018] Further optimization: the buffer support comprises a support column fixed to the second support;

[0019] An elastic buffer pad is wrapped on the outer sidewall of the support column, and the elastic buffer pad is made of rubber or silicone.

[0020] Further optimization: the limiting assembly comprises a mounting hole formed in the outer sidewall of the first support, and a mounting plate extending to both sides is welded to the bottom of the mounting hole;

[0021] An installation shell is detachably connected to the top of the mounting plate, and one end of the installation shell extends to the inside of the first support through the mounting hole;

[0022] A limiting block is slidably arranged in the installation shell, and when the safety door is closed, the hinged end of the upper telescopic beam is horizontally supported on the top of the limiting block; when the safety door is in the fully open state, the hinged end of the telescopic beam is vertically supported on the top of the limiting block;

[0023] One end of the limiting block close to the telescopic beam is provided with an inclined downward limiting slope, and the other end is provided with a threaded blind hole, and an adjusting screw is threadedly connected in the threaded blind hole, and the other end of the adjusting screw extends to the outside through the installation shell;

[0024] A spring is sleeved on the adjusting screw, and the two ends of the spring abut against the limiting block and the inner wall of the installation shell, respectively.

[0025] Further optimization: A protective shell is detachably connected to the outer wall of the first support member. Both the mounting plate and the mounting shell are set inside the protective shell, and the outer end of the adjusting screw extends through the protective shell to the outside.

[0026] Further optimization: The outer end of the adjusting screw is provided with a pull handle for manually adjusting the sliding position of the limit block.

[0027] Further optimization: The bottom of the first support and the second support are respectively provided with a fixed base, which is fixed to the ground or wall by expansion bolts or welding.

[0028] This invention utilizes the elastic potential energy of a pneumatic spring rod to provide assistance when opening and closing the safety door. When the safety door is manually pushed, the pneumatic spring rod will provide corresponding force according to the door's movement, making operation easier and enabling one-handed opening and closing, thus facilitating the user's operation of the safety door in various situations.

[0029] This utility model uses a telescopic beam design to allow the safety door to flexibly adjust its width according to different installation spaces and actual usage needs. By changing the length of the telescopic beam, the safety door can adapt to passages or areas of various widths.

[0030] This utility model uses a limiting component to restrict the opening of the door blocking component when the safety door is in the closed or open state, preventing the safety door from opening on its own due to unexpected situations such as external force collisions or misoperation, avoiding possible safety accidents, and providing reliable safety protection for surrounding personnel and equipment.

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0034] Figure 2 This is a structural diagram illustrating the opening process of an embodiment of the present invention;

[0035] Figure 3 This is a cross-sectional view of an embodiment of the present utility model;

[0036] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0037] Figure 5 This is a schematic diagram of the structure of the limiting component in an embodiment of this utility model;

[0038] Figure 6 This is a structural schematic diagram of the first support member in an embodiment of this utility model.

[0039] In the diagram: 1-First support component; 11-Fixed base; 2-Second support component; 21-Fixed base; 3-Gate stop assembly; 31-Telescopic beam; 311-Outer tube; 312-Inner tube; 313-Locking mechanism; 32-Connecting frame; 33-Pneumatic spring rod; 4-Buffer support component; 41-Support column; 42-Elastic buffer pad; 5-Limiting component; 51-Mounting hole; 52-Mounting plate; 53-Mounting shell; 54-Limiting block; 55-Adjusting screw; 56-Spring; 57-Protective shell; 58-Pull handle. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] like Figures 1-6 As shown, a manually operated safety door is characterized by comprising: a first support member 1 and a second support member 2 arranged in parallel at intervals;

[0042] The retractable door assembly 3 is disposed between the first support member 1 and the second support member 2. The door assembly 3 includes two parallel telescopic beams 31, and when the safety door is closed, the telescopic beams 31 are arranged perpendicularly to the first support member 1 and the second support member 2.

[0043] The connecting frame 32 has two ends that are respectively hinged to the adjacent ends of the two telescopic beams 31, and the other end of the telescopic beams 31 is respectively hinged to the first support member 1.

[0044] The pneumatic spring rod 33 has one end hinged to the telescopic beam 31 below and the other end hinged to the connecting frame 32. The pneumatic spring rod 33 is inclined to provide damping force.

[0045] The buffer support 4 is installed on the second support 2. When the safety door is closed, the bottom of the connecting frame 32 is horizontally supported on the buffer support 4.

[0046] The limiting component 5, which is installed on the first support member 1, is used to restrict the rotation of the door blocking component 3.

[0047] With this design, the safety door uses a first support member 1 and a second support member 2 arranged in parallel intervals as the basic frame. This structural form is simple and, while ensuring the support strength, avoids the use of too much material and reduces the overall weight.

[0048] Secondly, by utilizing the elastic potential energy of the pneumatic spring rod 33, it can provide a certain amount of assistance when opening and closing the safety door. Thus, when the safety door is manually pushed, the pneumatic spring rod 33 will provide corresponding force according to the movement state of the door, making the operation easier and enabling easy one-handed opening and closing, making it convenient for users to operate the safety door in various situations.

[0049] Furthermore, the design of the telescopic beam 31 allows the safety door to flexibly adjust its width according to different installation spaces and actual usage needs. Thus, by changing the length of the telescopic beam 31, the safety door can adapt to passages or areas of various widths.

[0050] In addition, the limit component 5 restricts the opening of the door blocking component 3 when the safety door is closed or open, preventing the safety door from opening on its own due to accidents such as external collisions or misoperation, thus avoiding potential safety accidents and providing reliable safety protection for surrounding personnel and equipment.

[0051] The telescopic beam 31 includes: an outer tube 311, the top of which at least one positioning hole is provided at the end away from the first support member 1;

[0052] An inner tube 312 is slidably sleeved inside the outer tube 311, and the inner tube 312 has a plurality of adjustment holes evenly opened along its length.

[0053] Locking mechanism 313 is provided between outer tube 311 and inner tube 312.

[0054] This design, firstly, the nested structure of the outer tube 311 and the inner tube 312, together with the positioning hole, adjustment hole and locking mechanism 313, allows the safety door to precisely change the length of the telescopic beam 31 according to the actual installation space and usage requirements, thereby flexibly adjusting the width of the safety door.

[0055] Secondly, the inner tube 312 slides inside the outer tube 311, and the two are tightly connected. When the locking mechanism 313 fixes the position of the two, a stable overall structure can be formed. Thus, when the safety door is subjected to a large external force impact, the telescopic beam 31 can also maintain structural stability and will not easily deform, ensuring the normal use of the safety door and extending its service life.

[0056] Furthermore, during installation, the length of the telescopic beam 31 can be adjusted as needed to adapt the safety door to different scenarios, making the installation process simpler. Moreover, in subsequent maintenance, if a problem occurs in a certain part, since the outer tube 311, inner tube 312 and locking mechanism 313 are relatively independent, they are easy to disassemble and replace, reducing maintenance difficulty and cost.

[0057] The locking mechanism 313 includes multiple bolt and nut assemblies. The bolts pass through the positioning hole and the selected adjustment hole in sequence and are then locked with the nuts to fix the relative positions of the inner tube 312 and the outer tube 311.

[0058] This design allows for quick adjustment and fixation of the relative positions of the inner tube 312 and the outer tube 311 using common bolt and nut assemblies, eliminating the need for special tools. This enables workers to quickly adjust the width of the safety door during on-site installation or subsequent maintenance, thus improving work efficiency.

[0059] Secondly, the bolts and nuts fit together tightly. When the bolts pass through the positioning holes and adjustment holes and the nuts are tightened, a strong fastening force is generated, which tightly connects the inner tube 312 and the outer tube 311. During the daily use of the safety door, even if it is subjected to vibration, external force pulling, etc., it can maintain a stable relative position, ensuring the structural stability of the safety door and its normal protective function.

[0060] Furthermore, the positioning holes on the outer tube 311 and the evenly distributed adjustment holes on the inner tube 312 provide a variety of options for different length requirements. This allows staff to accurately find the appropriate combination of holes based on the actual space dimensions and lock them with bolts and nuts to achieve precise adjustment of the width of the safety door, thus better meeting the installation requirements of different scenarios.

[0061] In addition, bolt and nut assemblies are common and affordable standard parts on the market, making them easy to purchase. Compared with some complex and customized locking devices, they greatly reduce the manufacturing cost of security doors. At the same time, if the bolts and nuts are damaged during later maintenance, the replacement cost is also low.

[0062] The buffer support 4 includes: a support column 41 fixed on the second support 2;

[0063] An elastic buffer pad 42 is wrapped around the outer wall of the support column 41. The elastic buffer pad 42 is made of rubber or silicone.

[0064] When the safety door closes and the bottom of the connecting frame 32 rests on the support column 41, the elastic buffer pad 42 made of rubber or silicone can effectively absorb and disperse the impact force generated by the falling of the connecting frame 32 due to its good elastic deformation ability. This avoids rigid collision between the connecting frame 32 and the support column 41, reduces the vibration of the safety door during the closing process, ensures the stability of the safety door structure, prevents components from loosening or being damaged due to vibration, and extends the overall service life of the safety door.

[0065] The limiting component 5 includes: a mounting hole 51 opened on the outer side wall of the first support member 1, and a mounting plate 52 extending to both sides integrally connected to the bottom of the mounting hole 51;

[0066] A mounting shell 53 is detachably connected to the top of the mounting plate 52, with one end of the mounting shell 53 extending through the mounting hole 51 into the first support member 1;

[0067] The limiting block 54 is slidably installed inside the mounting shell 53. When the safety door is closed, the hinged end of the telescopic beam 31 above is horizontally supported on the top of the limiting block 54; when the safety door is fully open, the hinged end of the telescopic beam 31 is vertically supported on the top of the limiting block 54.

[0068] The limiting block 54 has a downward inclined limiting slope at one end near the telescopic beam 31, and a threaded blind hole at the other end. An adjusting screw 55 is threaded into the threaded blind hole, and the other end of the adjusting screw 55 passes through the mounting shell 53 and extends to the outside.

[0069] The spring 56, which is sleeved on the adjusting screw 55, has its two ends abutting against the limiting block 54 and the inner wall of the mounting shell 53, respectively.

[0070] This design allows for several advantages. First, by pulling the adjusting screw 55, the limiting block 54 can be moved directly within the mounting housing 53, quickly releasing the limiting effect on the telescopic beam 31. Second, after releasing the adjusting screw 55, the elastic force of the spring 56 automatically pushes the limiting block 54 back to its original position, re-limiting the telescopic beam 31. This process requires no additional tools, is simple and intuitive to operate, and significantly improves the opening and closing efficiency of the gate assembly 3.

[0071] Secondly, by adjusting the screw 55 and connecting it to the threaded blind hole on the limit block 54, the position of the limit block 54 can be finely adjusted. Thus, when gaps or loosening occur in the safety door during use, the limit block 54 can be slid within the mounting housing 53 by rotating the adjusting screw 55, thereby adjusting the relative position of the limit block 54 and the hinged end of the telescopic beam 31, ensuring the stability and reliability of the limiting effect.

[0072] A protective shell 57 is detachably connected to the outer wall of the first support member 1. The mounting plate 52 and the mounting shell 53 are both located inside the protective shell 57, and the outer end of the adjusting screw 55 extends through the protective shell 57 to the outside.

[0073] With this design, the protective shell 57 can provide effective physical protection for internal components such as the mounting plate 52 and mounting shell 53, preventing them from being damaged by external impacts such as collisions or bumps.

[0074] The outer end of the adjusting screw 55 is provided with a pull handle 58 for manually adjusting the sliding position of the limit block 54.

[0075] With this design, the pull handle 58 is integrated into the outer end of the adjusting screw 55, which can be operated without tools, provides greater torque, and reduces the intensity of operation.

[0076] The bottom of the first support member 1 and the second support member 2 are respectively provided with fixed bases 11 and 21, which are fixed to the ground or wall by expansion bolts or welding.

[0077] Working principle:

[0078] Initial position when the safety door is closed:

[0079] The two telescopic beams 31 are fixed in length by locking mechanism 313 and are in a horizontal state perpendicular to the first support member 1 and the second support member 2.

[0080] The bottom of the connecting frame 32 is horizontally supported on the elastic buffer pad 42 of the buffer support 4, and the elastic buffer pad 42 absorbs the vibration of the door body;

[0081] The limiting block 54 is pushed out by the spring 56, and the hinged end of the telescopic beam 31 above is horizontally supported on the top of the limiting block 54 to prevent the door from moving accidentally.

[0082] The pneumatic spring rod 33 is in a compressed state, providing a closing force.

[0083] When the safety door is opened:

[0084] Step 1: The operator pulls the handle 58 outward, which moves the limit block 54 by adjusting the screw 55 and compresses the spring 56 to generate a reset force, thereby releasing the horizontal limit on the telescopic beam 31.

[0085] Step 2: Lift the connecting frame 32 upwards, and the pneumatic spring rod 33 will assist in pushing the telescopic beam 31 below to rotate upwards, causing the entire gate assembly 3 to rotate around the hinge point of the first support member 1.

[0086] Step 3: When the gate assembly 3 is rotated to the vertical position, release the handle. Under the restoring force of the spring 56, the limit block 54 returns to its original position, thus vertically locking the lower part of the telescopic beam 31.

[0087] When the safety door is closed:

[0088] Step 1: Pull the handle 58 again to retract the limit block 54 and release the telescopic beam 31.

[0089] Step 2: Slowly press down the connecting frame 32, the pneumatic spring rod 33 provides buffering force, and the telescopic beam 31 gradually extends to the horizontal position.

[0090] Step 3: The bottom of the connecting frame 32 finally rests smoothly on the buffer support 4, and the elastic buffer pad 42 reduces the impact.

[0091] Step 4: Release the pull handle 58, the spring 56 pushes the limit block 54 to reset, and the horizontal support telescopic beam 31 is locked.

[0092] When it is necessary to adjust the width of the door:

[0093] Step 1: Loosen the bolt and nut assembly of the locking mechanism 313 to release the fixation between the outer tube 311 and the inner tube 312.

[0094] Step 2: Stretch or compress the inner tube 312 and align it with the positioning hole through different adjustment holes.

[0095] Step 3: Insert the bolts and tighten the nuts to fix the telescopic beam 31 to the required length.

[0096] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A manually operated security door comprising: The first support (1) and the second support (2) are arranged in parallel and at intervals; The safety door is characterized in that a telescopic door assembly (3) is arranged between the first support (1) and the second support (2), the telescopic door assembly (3) comprises two telescopic beams (31) arranged in parallel and at intervals, and the telescopic beams (31) are arranged perpendicularly to the first support (1) and the second support (2) when the safety door is in a closed state; A connecting frame (32) is hingedly connected to adjacent ends of the two telescopic beams (31) and is hingedly connected to the first support (1) at the other ends of the telescopic beams (31); A pneumatic spring rod (33) is hingedly connected to the lower telescopic beam (31) at one end and is hingedly connected to the connecting frame (32) at the other end, and the pneumatic spring rod (33) is arranged obliquely to provide damping force; A buffer support (4) is arranged on the second support (2), and the bottom of the connecting frame (32) is horizontally supported on the buffer support (4) when the safety door is in the closed state; A limiting assembly (5) is arranged on the first support (1) to limit the movement of the telescopic door assembly (3) when the safety door is in the closed or open state.

2. A manually operated security door as claimed in claim 1 wherein The telescopic beam (31) comprises an outer tube (311) having at least one positioning hole opened at the top of the end away from the first support (1); An inner tube (312) is slidably sleeved in the outer tube (311), and a plurality of adjusting holes are uniformly arranged along the length direction of the inner tube (312); A locking mechanism (313) is arranged between the outer tube (311) and the inner tube (312).

3. A manually operated security door as claimed in claim 2 wherein The locking mechanism (313) comprises a plurality of bolt-nut assemblies, and the bolts are locked with nuts after passing through the positioning holes and the corresponding adjusting holes in sequence to fix the relative position of the inner tube (312) and the outer tube (311).

4. A manually operated security door as claimed in claim 1 wherein The buffer support (4) comprises a support column (41) fixed to the second support (2); An elastic buffer pad (42) is wrapped on the outer sidewall of the support column (41), and the elastic buffer pad (42) is made of rubber or silicone.

5. A manually operated security door as claimed in claim 1 wherein The limiting assembly (5) comprises a mounting hole (51) opened on the outer sidewall of the first support (1), and two mounting plates (52) are integrally connected to the bottom of the mounting hole (51) and extend on both sides; An installation shell (53) is detachably connected to the top of the mounting plate (52), and one end of the installation shell (53) extends into the first support (1) through the mounting hole (51); A limiting block (54) is slidably arranged in the installation shell (53), and the hinged end of the upper telescopic beam (31) is horizontally supported on the top of the limiting block (54) when the safety door is closed; when the safety door is completely opened, the hinged end of the telescopic beam (31) is vertically supported on the top of the limiting block (54); One end of the limiting block (54) close to the telescopic beam (31) is provided with an inclined downward limiting slope, and the other end is provided with a threaded blind hole, and an adjusting screw (55) is threadedly connected in the threaded blind hole, and the other end of the adjusting screw (55) penetrates through the installation shell (53) and extends to the outside; A spring (56) is sleeved on the adjusting screw (55), and the two ends of the spring (56) abut against the limiting block (54) and the inner wall of the installation shell (53), respectively.

6. A manually operated security door as claimed in claim 5 wherein The outer side wall of the first support (1) is detachably connected with a protective shell (57), the mounting plate (52) and the mounting shell (53) are arranged in the protective shell (57), and the outer end of the adjusting screw (55) extends to the outside through the protective shell (57).

7. A manually operated security door as claimed in claim 5 wherein The outer end of the adjusting screw (55) is provided with a pull handle (58) for manually adjusting the sliding position of the limiting block (54).

8. A manually operated security door as claimed in claim 1 wherein The bottom of the first support (1) and the second support (2) is respectively provided with a fixed base (11, 21), and the fixed base (11, 21) is fixed to the ground or a wall body by expansion bolts or welding.

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