A mechanical safety lock

Abstract

The utility model discloses a mechanical safety lock, comprising a locking structure and a plug plate that are movable relative to each other, the locking structure comprising a lock seat, a sleeve seat for passing the plug plate is arranged on the lock seat, a second hydraulic cylinder for driving the sleeve seat to move is fixedly arranged on the lock seat, and a tooth structure for locking in cooperation with a double arc slot is arranged on the lock seat located in the sleeve seat, and the plug plate on the other external body can be mechanically locked by arranging the locking structure on one of the external bodies, so as to avoid relative displacement of the two external bodies, and the safety and reliability are higher, and as a supplementary structure driven by gas, hydraulic pressure or electric power, the safety and convenience of maintenance are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of safety locks, in particular to a mechanical safety lock. Background Art

[0002] In the field of machinery, it is often encountered that the movement of equipment or one of its parts needs to be locked, such as gates, lifts, double-layer parking sheds, safety doors of certain equipment, etc. These moving parts are usually driven by gas, hydraulic or electric. If they are not locked after moving to a certain position, once the driving mechanism fails, a safety accident is likely to occur. For example, in the upper and lower double-layer parking sheds, hydraulic locks are often used when raising and lowering the parking plate as parking safety locks. Once the hydraulic system has pipeline bursts, seals are damaged and leaking, and the hydraulic system is depressurized, the parking plate cannot be locked properly. In addition, when multiple hydraulic locks are used to raise and lower the parking plate, if one of them is damaged, there are certain safety hazards during the maintenance process of the staff. In severe cases, it will cause the parking plate to slide or fall, causing a safety accident. Therefore, a mechanical safety lock is needed. Utility Model Content

[0003] The purpose of the present invention is to provide a mechanical safety lock to solve the above problems and overcome the defects of the prior art, as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a mechanical safety lock, comprising a locking structure and a plug plate which move relative to each other, the locking structure comprising a lock seat, a sleeve for passing the plug plate is arranged on the lock seat, a second hydraulic cylinder for driving the sleeve to move is fixedly arranged on the lock seat, and a tooth structure for cooperating with a double arc slot for locking is arranged on the lock seat located in the sleeve.

[0006] Furthermore, an upper seat plate and a lower seat plate are respectively provided at the upper and lower ends of the plug plate, and the upper seat plate and the lower seat plate are respectively provided with mounting holes.

[0007] Furthermore, a plurality of evenly distributed continuous double arc slots are provided on both sides of the plug board along its length direction.

[0008] Furthermore, the latching tooth structure comprises a latching seat fixedly arranged on the lock seat, a telescopic slide groove is formed in the latching seat, a latching block is slidably arranged in the telescopic slide groove, and arc-shaped abutting ends are formed at both ends of the latching block.

[0009] Furthermore, a wedge-shaped push block is fixedly provided on the lower side of the sleeve, one of the abutting ends of the clamping block is in abutment with the push block, and the other abutting end of the clamping block is in abutment with the double arc clamping groove.

[0010] Furthermore, a guide slot is provided on the inner side wall of the telescopic slot, a guide slider is slidably arranged in the guide slot, one end of the guide slider is fixedly connected to the clamping block, a spring is arranged between the guide slider and the inner end surface of the guide slot, and when the clamping block is engaged with the double arc clamping slot, the spring is in a compressed state.

[0011] Furthermore, ears are fixedly provided on both sides of the upper part of the sleeve, and the second hydraulic cylinder is provided with two ears corresponding to the ears. The second hydraulic cylinder is fixedly provided on the lock seat, and the push rod head end of the second hydraulic cylinder is fixedly connected to the corresponding ears.

[0012] Furthermore, guide seats for supporting and guiding the sleeve to move are arranged on both sides of the sleeve, the cross-section of the guide seats is U-shaped, and the guide seats are fixedly arranged on the lock seat.

[0013] The beneficial effects are:

[0014] 1. By setting a locking structure on one of the external bodies, the plug plate on the other external body can be mechanically locked to avoid relative displacement of the two external bodies, which is safer and more reliable. It serves as a supplementary structure for gas, hydraulic or electric drive, increasing safety and convenience of maintenance.

[0015] 2. The gravity lock design is adopted. When the second hydraulic cylinder fails to work or the hydraulic system fails, the gravity of the sleeve and the push block itself can still push the block to overcome the spring elastic resistance to achieve the locking function;

[0016] 3. The continuous double arc slot is adopted, whether you want to move up or down, it can play a timely locking role without getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional diagram of the mechanical safety lock of the utility model;

[0019] Figure 2 This utility model Figure 1 A local enlarged view of point A;

[0020] Figure 3 It is a cross-sectional view of the mechanical safety lock of the utility model;

[0021] Figure 4 This utility model Figure 3 A partial enlarged view of point B;

[0022] Figure 5 It is a locked state diagram of the mechanical safety lock of the utility model.

[0023] The description of the accompanying drawings is as follows: 1. Locking structure; 101. Sleeve; 102. Lock seat; 103. Second hydraulic cylinder; 104. Support ear; 105. Card seat; 106. Card block; 107. Telescopic slide; 108. Guide slide; 109. Spring; 110. Push block; 111. Guide slider; 112. Guide seat; 2. Insert plate; 201. Upper seat plate; 202. Lower seat plate; 203. Double arc card slot. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 As shown, the utility model provides a mechanical safety lock, including a locking structure 1 and a plug plate 2 that move relative to each other, the locking structure 1 including a lock seat 102, a sleeve 101 for passing through the plug plate 2 is arranged on the lock seat 102, a second hydraulic cylinder 103 for driving the sleeve 101 to move is fixedly arranged on the lock seat 102, and a tooth structure for cooperating with the double arc groove 203 for locking is arranged on the lock seat 102 located in the sleeve 101. Through the above-mentioned specific structural design, once the hydraulic system of the second hydraulic cylinder 103 fails, the pipeline bursts, the seal is damaged and leaks oil, and the hydraulic system is depressurized, and the sleeve 101 cannot be driven to lock the parking plate to fall, the sleeve 101 can move downward under the action of its own gravity, so that the tooth structure and the double arc groove 203 cooperate with each other to lock.

[0026] An upper seat plate 201 and a lower seat plate 202 are respectively provided at the upper and lower ends of the plug board 2, and both the upper seat plate 201 and the lower seat plate 202 are respectively provided with mounting holes.

[0027] A plurality of evenly distributed continuous double arc slots 203 are arranged along the length direction of the two sides of the plug board 2. The continuous double arcs can provide a timely locking effect and prevent the plug board from getting stuck, whether it is moving up or down.

[0028] The latch structure includes a latch seat 105 fixedly disposed on the lock seat 102 , a telescopic slide slot 107 extending through the latch seat 105 , a latch block 106 slidably disposed in the telescopic slide slot 107 , and arc-shaped abutting ends are formed at both ends of the latch block 106 .

[0029] A wedge-shaped push block 110 is fixedly provided on the lower side of the sleeve 101. One of the abutting ends of the clamping block 106 is in abutment with the push block 110, and the other abutting end of the clamping block 106 is in abutment with the double arc clamping groove 203. The double arc clamping groove 203 and the ends of the clamping block 106 are designed as arcs, so that the plug plate 7 will not get stuck when moving up and down. After the clamping seat 105 falls, the push block 610 limits the clamping block 106, thereby realizing the locking of the upper parking plate 3 and the lower parking plate 4 during the upward and downward movement.

[0030] In order to realize the reset of the block 106 after the locking is completed, a guide slot 108 is provided on the inner side wall of the telescopic slot 107, and a guide slider 111 is slidably provided in the guide slot 108. One end of the guide slider 111 is fixedly connected to the block 106, and a spring 109 is provided between the guide slider 111 and the inner end surface of the guide slot 108. When the block 106 is engaged with the double arc slot 203, the spring 109 is in a compressed state. In actual application, the sleeve 101 can move downward under its own gravity to compress the spring 109, so as to realize the movement of the anchor block 106 in the telescopic slot 107 and the engagement with the double arc slot 203.

[0031] Ears 104 are fixedly provided on both sides of the upper part of the sleeve 101, and the second hydraulic cylinder 103 is provided with two corresponding ears 104. The second hydraulic cylinder 103 is fixedly provided on the lock seat 102, and the push rod head end of the second hydraulic cylinder 103 is fixedly connected to the corresponding ears 104.

[0032] Guide seats 112 are provided on both sides of the sleeve 101 for supporting and guiding the movement thereof. The cross-section of the guide seats 112 is U-shaped and the guide seats 112 are fixedly arranged on the lock seat 102. Through the above-mentioned specific structural design, the guide seats 112 can guide the sleeve 101 to move up and down, and ensure the stability of the sleeve 101 to move up and down.

[0033] Working principle:

[0034] The plug plate 2 is fixedly mounted with the external body through the upper seat plate 201 and the lower seat plate 202 provided at the upper and lower ends, and the locking structure 1 is fixedly mounted with the other external body through the mounting seat on the lock seat 102. During the relative movement of the two external bodies, the locking structure 1 and the plug plate 2 can cooperate to lock and fix the relative movement of the two external bodies, thereby playing a role in safety protection. Specifically, the push rod of the second hydraulic cylinder 103 retracts to drive the sleeve seat 101 to move, and the push block 110 provided on the sleeve seat 101 can push the block 106 to slide in the telescopic slide groove 107. At this time, the spring 109 is in a compressed state, and the block 106 is stuck in the double arc groove 203, thereby achieving the locking of the plug plate 7, and the push block 610 prevents the block 106 from resetting. Only after the second hydraulic cylinder 103 drives the sleeve seat 101 and the block 106 to reset, the block 106 is separated from the double arc groove 203 and resets under the elastic force of the spring 109.

[0035] Once the hydraulic system of the second hydraulic cylinder 103 fails, the pipeline bursts, the seal is damaged and leaks oil, the hydraulic system is depressurized and cannot drive the sleeve 101 to lock the parking plate to fall, the sleeve 101 can move downward under the action of its own gravity, so that the tooth structure and the double arc slot 203 cooperate with each other to lock.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A mechanical safety lock, characterized in that: The invention comprises a locking structure (1) and a plug plate (2) which move relative to each other, wherein the locking structure (1) comprises a locking seat (102), a sleeve (101) for passing through the plug plate (2) is arranged on the locking seat (102), a second hydraulic cylinder (103) for driving the sleeve (101) to move is fixedly arranged on the locking seat (102), and a tooth structure for cooperating with a double arc slot (203) for locking is arranged on the locking seat (102) located in the sleeve (101).

2. A mechanical safety lock according to claim 1, characterized in that: An upper seat plate (201) and a lower seat plate (202) are respectively provided at the upper and lower ends of the plug plate (2), and the upper seat plate (201) and the lower seat plate (202) are respectively provided with mounting holes.

3. A mechanical safety lock according to claim 1 or 2, characterized in that: A plurality of evenly distributed continuous double arc slots (203) are arranged on both sides of the plug plate (2) along its length direction.

4. A mechanical safety lock according to claim 1, characterized in that: The latching tooth structure comprises a latching seat (105) fixedly arranged on a lock seat (102), a telescopic sliding groove (107) penetrating the latching seat (105), a latching block (106) slidably arranged in the telescopic sliding groove (107), and arc-shaped abutting ends are formed at both ends of the latching block (106).

5. A mechanical safety lock according to claim 4, characterized in that: A wedge-shaped push block (110) is fixedly provided on the lower side of the sleeve (101); one abutting end of the clamping block (106) is in abutment with the push block (110); and the other abutting end of the clamping block (106) is in abutment with the double arc clamping groove (203).

6. A mechanical safety lock according to claim 4 or 5, characterized in that: A guide slot (108) is provided on the inner side wall of the telescopic slot (107), a guide slider (111) is slidably provided in the guide slot (108), one end of the guide slider (111) is fixedly connected to the clamping block (106), a spring (109) is provided between the guide slider (111) and the inner end surface of the guide slot (108), and when the clamping block (106) is clamped and matched with the double arc clamping slot (203), the spring (109) is in a compressed state.

7. A mechanical safety lock according to claim 1, characterized in that: The upper two sides of the sleeve (101) are fixedly provided with supporting ears (104), and the second hydraulic cylinder (103) is provided with two corresponding supporting ears (104). The second hydraulic cylinder (103) is fixedly provided on the lock seat (102), and the push rod head end of the second hydraulic cylinder (103) is fixedly connected to the corresponding supporting ears (104).

8. A mechanical safety lock according to claim 1, characterized in that: Guide seats (112) for supporting and guiding the sleeve (101) to move are arranged on both sides of the sleeve (101); the cross-section of the guide seat (112) is U-shaped; the guide seat (112) is fixedly arranged on the lock seat (102).

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