CN216815185U

CN216815185U - Explosion-proof fork

Info

Publication number: CN216815185U
Application number: CN202220475379.1U
Authority: CN
Inventors: 张峻源
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-06-24
Anticipated expiration: 2032-03-04

Abstract

An explosion-proof fork comprises a headstock, a long handle, a jaw, a driving rod and a locking mechanism, wherein the front end of the long handle is arranged on the headstock; the pair of front clamping jaws are respectively hinged on the left side and the right side of the front end of the headstock; the pair of rear clamping jaws are respectively hinged on the left side and the right side of the middle part of the headstock, and the left side and the right side of the headstock are correspondingly provided with locking grooves; the driving rod is arranged in the long handle, the front end of the driving rod extends into the headstock, and is respectively connected with the two front clamping jaws through the two first connecting rods and is respectively connected with the two rear clamping jaws through the two second connecting rods; and the locking mechanisms are arranged in the long handle and provided with two groups, and the two groups are respectively connected with the first driving rod and the second driving rod and are used for respectively locking the moving positions of the first driving rod and the second driving rod. According to the utility model, the two groups of clamping jaws are arranged, so that the explosion-proof fork can limit the human body of violence molecules from the front and the side, and the use flexibility of the explosion-proof fork is improved.

Description

Explosion-proof fork

Technical Field

The utility model belongs to the technical field of explosion-proof equipment, and particularly relates to an explosion-proof fork.

Background

The explosion-proof fork tool is invented specially for preventing violence, and the length of the current conventional explosion-proof fork is about 1.2 meters, and the explosion-proof fork tool consists of a movable handle and a U-shaped fork head. The handle is of a telescopic design, can be extended to two meters, and when the violence molecules are blocked, the explosion-proof fork is extended to the violence molecules, and the U-shaped fork head sleeves and presses the explosion-proof fork on the ground or against the wall, so that the explosion-proof fork is difficult to fall out of the range surrounded by the fork head, and the purpose of uniform violence molecules is achieved.

The conventional explosion-proof fork has some obvious defects, the use limitation is strong, the fork head is required to be pressed on the ground or pushed against the wall to completely violently force the action of molecules, the explosion-proof fork is completely uniform, the use occasion and the use mode have strong limitation, the explosion-proof fork with the openable fork head is provided, the left fork and the right fork of the fork head are closed, and therefore the trunk or the four limbs of the violence molecules are firmly encircled, and the purpose of uniform of the explosion-proof molecules is achieved. However, the explosion-proof fork with the openable fork head still has certain disadvantages that the opening of the fork head faces forward during use, so that the fork head needs to be aligned with the violent molecules in the front direction to be capable of encircling and limiting the violent molecules, and certain use limitations still exist.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the related art, the utility model provides an explosion-proof fork, which aims to solve the problem that the existing explosion-proof fork is high in use limitation.

The present invention provides an explosion proof fork, comprising:

a head frame;

a long handle, the front end of which is arranged on the head frame;

a pair of front clamping jaws which are respectively hinged at the left side and the right side of the front end of the headstock;

the rear clamping jaws are provided with a pair of clamping jaws which are respectively hinged on the left side and the right side of the middle part of the headstock, and the left side and the right side of the headstock are correspondingly provided with locking grooves;

the first driving rod is arranged in the long handle, the front end of the first driving rod extends into the headstock and is respectively connected with the two front clamping jaws through two first connecting rods, and when the first driving rod moves axially, the first driving rod drives the two front clamping jaws to open and close;

the second driving rod is arranged in the long handle, the front end of the second driving rod extends into the headstock and is respectively connected with the two rear clamping jaws through two second connecting rods, and when the second driving rod moves axially, the second driving rod drives the two rear clamping jaws to open and close corresponding locking grooves;

and the locking mechanisms are arranged in the long handle and provided with two groups, are respectively connected with the first driving rod and the second driving rod and are used for respectively locking the moving positions of the first driving rod and the second driving rod.

This technical scheme makes explosion-proof fork can both carry out the personal restriction to violence molecule from front and side through setting up two sets of jack catchs, has increased the flexibility that explosion-proof fork used.

In some of these embodiments, the latch mechanism comprises:

the rack is axially arranged on the inner wall of the long handle and is provided with a ratchet;

the sliding block is assembled in the inner cavity of the long handle in a sliding mode and is provided with a pawl capable of being clamped into the ratchet, and the sliding block is connected with the first driving rod or the second driving rod.

According to the technical scheme, the pawl is matched with the ratchet on the rack, so that the sliding block can only move in a single direction, the claw is combined and/or the locking groove is closed by the driving rod, and the locking state can be kept.

In some embodiments, the device further comprises two triggering mechanisms, wherein the two triggering mechanisms are arranged in the long handle and are respectively connected with corresponding latch mechanisms to drive the sliding block to slide when triggered.

According to the technical scheme, the slider is driven through the trigger mechanism, so that the claw is combined and/or the locking groove is closed through the driving rod.

In some of these embodiments, the trigger mechanism comprises:

one end of the trigger spring is arranged on the long handle, and the other end of the trigger spring is arranged on the sliding block;

the limiting rod is arranged on the sliding block and is assembled in a sliding groove which is axially formed in the long handle in a sliding mode;

the limiting sleeve is sleeved on the long handle, a movable groove capable of enabling the limiting rod to penetrate is formed in one side of the limiting sleeve, a limiting groove is formed in the edge of one side of the movable groove, and when the limiting rod is located in the limiting groove, the trigger spring is in a compressed state.

According to the technical scheme, the force accumulation of the trigger spring is realized through the limiting groove of the limiting sleeve, the axial driving of the sliding block is realized through the elastic force of the trigger spring after the trigger, and then the combination of the clamping jaws and/or the closing of the locking groove are realized to trigger the locking state of the explosion-proof fork.

In some embodiments, the limiting rod is rotatably mounted on the sliding block, and the corresponding pawl is mounted on the limiting rod. According to the technical scheme, the pawl moves by rotating the limiting rod, so that the one-way movement limitation of the locking mechanism is removed, the sliding block can push the trigger spring to compress, the limiting rod axially moves to the limiting groove to be clamped, and the state to be triggered is achieved.

In some embodiments, a torsion spring is disposed between the limiting rod and the sliding block for driving the pawl to press on the rack by elastic force. According to the technical scheme, the pawl can be firmly pressed into the ratchet through the torsion spring, so that the locking mechanism can be firmly kept in a locking state.

In some embodiments, the two locking mechanisms are symmetrically arranged in front and back, the two trigger mechanisms are symmetrically arranged in front and back, and the two limiting sleeves are connected into a whole. The technical proposal leads the two trigger mechanisms to be capable of triggering the two groups of claws to achieve the locking state simultaneously through the symmetrical arrangement of the locking mechanism and the trigger mechanism,

in some embodiments, the first connecting rod is connected with the inner end of the corresponding front claw, and when the first driving rod moves axially backwards, the two front claws are pulled to be closed. This technical scheme realizes through the pulling of first actuating lever that the front jaw is closed, reduces the home range of first connecting rod, avoids it to move and produces the interference to explosion-proof work in going into the locking groove.

In some embodiments, the second link is connected to the middle portion of the corresponding rear jaw, and the second driving rod pushes the two rear jaws to close the corresponding locking grooves when moving axially forward. This technical scheme realizes through the promotion of second actuating lever that the back jack catch seals the locking groove, reduces the home range of second connecting rod, avoids it to move into in the locking groove and produces the interference to anti-riot work.

In some of these embodiments, the rear jaws are in the shape of an arc that is concave rearward. The technical scheme enables the rear claw to further reduce the moving range of the second connecting rod and has stronger limiting effect on violent molecules.

Based on the technical scheme, in the embodiment of the utility model, the pair of front clamping jaws are arranged at the front end, the pair of rear clamping jaws are arranged at the two sides of the front clamping jaw, and the corresponding locking grooves are configured, so that when the front surface of the explosion-proof fork extends to a violent molecule, the human body limitation on the violent molecule can be realized by closing the pair of front clamping jaws, and when the explosion-proof fork is laterally swept to the violent molecule, the body part of the violent molecule enters the locking grooves and is locked in the locking grooves through the rear clamping jaws, the human body limitation on the violent molecule can also be realized, the explosion-proof fork has stronger use flexibility, the violent molecule can be uniformed in multiple angles, and the problem that the current explosion-proof fork has stronger use limitation is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a schematic structural view of the vent fork of the present invention in a standby position;

FIG. 2 is a schematic structural view of the vent fork of the present invention in a locked position;

FIG. 3 is a partial schematic structural view of the long handle of the explosion vent fork of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3, partially broken away;

in the figure:

1. a head frame; 11. a locking groove;

2. a long handle; 21. a chute; 22. a retainer ring;

3. a front claw; 4. a rear claw; 5. a first drive lever; 6. a second drive lever;

7. a latch mechanism; 71. a rack; 72. a slider; 73. a ratchet; 74. a pawl;

81. a first link; 82. a second link;

9. a trigger mechanism; 91. a trigger spring; 92. a limiting rod; 93. a limiting sleeve; 94. a movable groove; 95. a limiting groove.

Detailed Description

The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In one exemplary embodiment of the explosion vent fork of the present invention, as shown in fig. 1-4, the fork includes a head frame 1, a long handle 2, a front jaw 3, a rear jaw 4, a first drive rod 5, a second drive rod 6, and a latch mechanism 7. The front end of the long handle 2 is arranged on the headstock 1, the pair of front claws 3 are respectively and hingedly arranged at the left side and the right side of the front end of the headstock 1, the pair of rear claws 4 are respectively and hingedly arranged at the left side and the right side of the middle part of the headstock 1, and the left side and the right side of the middle part of the headstock 1 are correspondingly provided with locking grooves 11. Two driving rods are arranged in the long handle 2, the front ends of the two driving rods extend into the headstock 1, the front end of the first driving rod 5 is connected with the two front claws 3 through two first connecting rods 81, and the front end of the second driving rod 6 is connected with the two rear claws 4 through two second connecting rods 82. When the first driving rod 5 moves axially, the first driving rod 5 drives the two front jaws 3 to open and close through the two first connecting rods 81; when the second driving lever 6 moves axially, the second driving lever 6 drives the two rear jaws 4 to open and close the corresponding locking grooves 11 through the two second links 82. The latch mechanisms 7 are installed in the long handle 2 and have two sets, and the two sets of latch mechanisms 7 are respectively connected with the first driving rod 5 and the second driving rod 6 so as to respectively lock the moving positions of the first driving rod 5 and the second driving rod 6 and further respectively lock the moving positions of the front jaw 3 and the rear jaw 4.

When explosion-proof fork is in standby state, two preceding jack catchs 3 open, and two back jack catchs 4 all are located and correspond locking groove 11 outside. When violent molecules need to be subdued, the explosion-proof fork extends forwards to enable the trunk or four limbs of the explosion-proof fork to enter between the two front claws 3, then the first driving rod 5 is pushed and pulled to drive the two front claws 3 to be closed, the bodies of the violent molecules are bound in the area surrounded by the front claws 3, and meanwhile, the first driving rod 5 is locked at the current position by the locking mechanism 7, so that the two front claws 3 are kept in a closed state, the personal freedom of the violent molecules is firmly limited, and the violent molecules are subdued; or with explosion-proof fork horizontal sweep to violence molecule, make trunk or the four limbs of violence molecule enter into locking groove 11, push and pull second actuating lever 6 immediately afterwards, drive two back jack catch 4 and swing in locking groove 11, block on the opening of locking groove 11, thereby make back jack catch 4 and locking groove 11 together form embracing to violence molecule trunk or four limbs, snap-lock mechanism 7 locks second actuating lever 6 at the current position simultaneously, thereby make two back jack catch 4 keep the closure to locking groove 11, tie violence molecule firmly in locking groove 11, thereby restrict the personal freedom of violence molecule, uniform with it.

In above-mentioned exemplary embodiment, explosion-proof fork is through installing a pair of front jack catch at the front end, install a pair of back jack catch and dispose corresponding locking groove in both sides, make explosion-proof fork openly stretch to when violence molecule, can realize the personal restriction to violence molecule through closing a pair of front jack catch, can also make explosion-proof fork side direction sweep to when violence molecule, make the health position of violence molecule get into in the locking groove and lock wherein through back jack catch, also can realize the personal restriction to violence molecule, the locking of rethread latch mechanism, prevent that violence molecule from deviating from the locking groove of jack catch or constraint, make explosion-proof fork have stronger use locking groove flexibility, can multi-angle uniform violence molecule, and the locking is firm, the security is higher, the stronger problem of current explosion-proof fork use limitation has been solved.

In some embodiments, latch mechanism 7 includes a rack gear 71 and a slider 72. The rack 71 is axially mounted on the inner wall of the long shank 2 and has ratchet teeth 73. The slider 72 is slidably fitted in the inner cavity of the long shank 2 so as to be axially slidable. The slider 72 is provided with a pawl 74 and is connected to a corresponding drive rod. When the driving rod moves axially and drives the jaws, the slider 72 slides axially, and the pawl 74 slides along the surface of the rack 71 because the ratchet teeth 73 on the rack 71 are one-way teeth; after the two front claws 3 are closed or the two rear claws 4 are closed to close the locking groove 11, the pawls 74 are clamped into the ratchets 73, and the sliding block 72 cannot slide reversely, so that the current position of the driving rod is kept, the two front claws 3 are kept closed or the two rear claws 4 are closed to close the locking groove 11, violent molecules cannot be separated, and the violent molecules can be uniformed. The sliding blocks 72 of the two latch mechanisms 7 are respectively connected with the first driving rod 5 and the second driving rod 6, so that the closed locking of the two front claws 3 and the closed locking grooves 11 of the two rear claws 4 are respectively realized. One side surface of the slider 72 is attached to a side wall of the rack 71 so that the pawl 74 can be aligned with the rack 71.

In some embodiments, the vent fork further comprises a trigger mechanism 9 in order to complete closure of the jaws or closure of the locking groove as soon as possible when a force molecule is forced against, preventing the force molecule from escaping the controlled range of the jaws or locking groove. The trigger mechanisms 9 are provided with two, are all arranged in the long handle 2 and are respectively connected with the corresponding clamping and locking mechanisms 7, so that when violence molecules enter between the two front claws 3 or enter the locking groove 11, the trigger mechanisms 9 rapidly drive the sliding blocks 72 in the corresponding clamping and locking mechanisms 7 to move, thereby enabling the driving rods to rapidly drive the front claws 3 to be closed or rapidly drive the rear claws 4 to be closed to seal the locking groove 11, preventing the violence molecules from escaping and improving the success rate of subduing the violence molecules.

In some embodiments, the trigger mechanism 9 includes a trigger spring 91, a stop lever 92, and a stop collar 93. Both ends of the trigger spring 91 are respectively mounted on the long handle 2 and the slider 72, and the stopper rod 92 is mounted on the slider 72 and slidably fitted in the slide groove 21 axially opened in the long handle 2 so as to protrude outside the long handle 2. The limiting sleeve 93 is sleeved on the long handle 2 and can rotate on the long handle 2, a movable groove 94 is axially formed in one side of the limiting sleeve 93, and a limiting groove 95 is formed in the side wall of the movable groove 94.

The limiting rod 92 is pulled axially, the limiting rod 92 enters the limiting sleeve 93 through the movable groove 94, the sliding block 72 slides axially along with the limiting rod 92, the trigger spring 91 is compressed, the limiting sleeve 93 is rotated to enable the limiting rod 92 to enter the limiting groove 95 from one side, the sliding block 72 is pushed by the elastic force of the trigger spring 91, the limiting rod 92 is enabled to be abutted against the inner wall of the limiting groove 95, and the limiting groove 95 blocks the limiting rod 92 from moving axially. When the explosion-proof fork uniforms gangsters, the limiting sleeve 93 is reversely rotated, the limiting rod 92 is laterally separated from the limiting groove 95, the limitation of the limiting groove 95 is lost, the elastic force of the trigger spring 91 pushes the sliding block 72 to slide, the driving rod axially moves along with the sliding block 72 to drive the front clamping jaw 3 to be closed or the rear clamping jaw 4 to be closed to the locking groove 11, and thus violent molecules are quickly bound. In order to avoid axial movement of the limiting sleeve 93, the outer wall of the long handle 2 is provided with a retaining ring 22, and the front end and the rear end of the limiting sleeve 93 are respectively attached to the corresponding retaining rings 22. The sliding block 72 cannot rotate in the long handle 2 by limiting the moving direction of the limiting rod 92 through the sliding chute 11, meanwhile, the sliding block 72 is attached to the rack 71, and the rack 71 can also prevent the sliding block 72 from rotating, so that the stability of the sliding block 72 during sliding is further improved.

In some embodiments, the restraint lever 92 is rotatably mounted to the slider 72 so as to be able to rotate on the slider 72. The pawl 74 corresponding to the latch mechanism 7 is provided on the stopper rod 92 so as to be swingable in accordance with the rotation of the stopper rod 92. When the locking of the driving rod needs to be released, the limiting rod 92 is rotated, so that the pawl 74 is separated from the ratchet teeth 73 of the rack 71, the sliding block 72 can move reversely, the driving rod drives the front jaw 3 to open or drives the rear jaw 4 to open the locking groove 11, the explosion-proof fork is restored to the standby state, and the limiting rod 92 enters the limiting groove 95 of the limiting sleeve 93 and is restored to the to-be-triggered state.

In some embodiments, a torsion spring is disposed between the limiting rod 92 and the sliding block 72, and the elastic force of the torsion spring drives the limiting rod 92 to rotate, so that the pawl 74 presses on the rack 71. When violent molecules are subdued, the sliding block 72 slides, the driving rod drives the front jaw 3 to be closed or drives the rear jaw 4 to be closed, and the ratchet 74 is firmly clamped into the ratchet 73 under the elastic force of the torsion spring, so that the clamping and locking mechanism 7 firmly locks the sliding block 72, the current position of the driving rod is kept, and the closed front jaw 3 or the closed locking groove 11 firmly limits the personal freedom of the violent molecules.

In some embodiments, the two latch mechanisms 7 are symmetrically arranged front and back, the two trigger mechanisms 9 are symmetrically arranged front and back, the two stop sleeves 93 are connected into a whole, so that the stop rods 92 of the two trigger mechanisms 9 can be simultaneously clamped into the corresponding stop grooves 95, the stop sleeves 93 integrated with the knob and the sliding blocks 72 of the two latch mechanisms 7 can simultaneously move forwards and backwards respectively, and then the two driving rods simultaneously drive the front claws 3 to close and the rear claws 4 to close the locking grooves 11, so as to overcome violence molecules. Two sliders 72 reverse simultaneously moves, can offset the slider 72 and pop out the recoil that produces, improve the stability of explosion-proof fork when using. The symmetry sets up and makes two kayser mechanisms 7 and two trigger mechanism 9 homoenergetic be back-to-back and arrange, shortens the space of part in long handle 2 and occupies, makes the rack 71 of two kayser mechanisms 7 can adopt an organic whole piece, and the trigger spring 91 of two trigger mechanism 9 also can adopt an organic whole piece, reduces part quantity, the manufacturing of being convenient for.

In some embodiments, the first connecting rod 81 is connected with the inner end of the corresponding front jaw 3, when the first driving rod 5 moves backwards in the axial direction, the two front jaws 3 are pulled to be closed, the moving range of the first connecting rod 81 is located between the hinge points of the two front jaws 3, the occupied space is small, the size of the head of the explosion-proof fork can be reduced, the quality of the head of the explosion-proof fork is reduced, the explosion-proof fork can be held more easily and flexibly, and the activity of the first connecting rod 81 cannot enter the locking groove 11 to influence the explosion-proof work.

In some embodiments, the second link 82 is connected to the middle of the corresponding rear jaw 4, and when the second driving rod 6 moves axially forward, the two rear jaws 4 are pushed to close the corresponding locking groove 11, so that the moving range of the second link 82 is located at the rear side of the locking groove 11, and the movement of the second link 82 cannot enter the locking groove 11 to affect the anti-riot work.

In some embodiments, the rear jaw 4 is in the shape of an arc which is concave backwards, so that the required length of the second connecting rod 82 is further reduced, the occupied space of the second connecting rod 82 is reduced, the size of the head of the explosion-proof fork can be reduced, the weight is reduced, and the holding is more portable and flexible. The rear claw 4 is arc-shaped, so that the range enclosed by the rear claw and the locking groove 11 is larger, and the body part of the violent molecule can be accommodated and locked by the locking groove 11 without overlarge size, so that the width of the head part of the explosion-proof fork can be reduced, the size is reduced, and the weight is reduced.

Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims

1. An explosion vent fork, comprising:

a head frame;

the front end of the long handle is arranged on the head frame;

the front clamping jaws are provided with a pair and are respectively hinged on the left side and the right side of the front end of the headstock;

the rear clamping jaws are provided with a pair of rear clamping jaws which are respectively hinged on the left side and the right side of the middle part of the headstock, and the left side and the right side of the headstock are correspondingly provided with locking grooves;

the second driving rod is arranged in the long handle, the front end of the second driving rod extends into the headstock and is respectively connected with the two rear clamping jaws through two second connecting rods, and when the second driving rod moves axially, the second driving rod drives the two rear clamping jaws to open and close corresponding to the locking grooves;

2. The explosion vent fork of claim 1, wherein said latch mechanism comprises:

the sliding block is assembled in the inner cavity of the long handle in a sliding mode and is provided with a pawl which can be clamped into the ratchet, and the sliding block is connected with the first driving rod or the second driving rod.

3. The explosion vent fork of claim 2, further comprising two trigger mechanisms, each of said two trigger mechanisms being disposed in said elongated shank and each being connected to a corresponding one of said latch mechanisms for driving said slide to slide when triggered.

4. The explosion vent fork of claim 3, wherein the trigger mechanism comprises:

the limiting rod is arranged on the sliding block and is assembled in a sliding groove axially formed in the long handle in a sliding mode;

5. The explosion proof fork as recited in claim 4, wherein said limit post is rotatably mounted on said slider and mounted on said limit post in correspondence with said pawl.

6. The explosion vent fork as defined in claim 5, wherein a torsion spring is disposed between said limit lever and said slider for driving said pawl to press against said rack by an elastic force.

7. The explosion proof fork as recited in any one of claims 4 to 6 wherein two said latch mechanisms are symmetrically disposed in tandem, two said trigger mechanisms are symmetrically disposed in tandem, and two said stop collars are connected as a single piece.

8. The explosion vent fork of claim 1, wherein said first link connects the inner ends of the respective front jaws, and wherein said first link pulls both of said front jaws closed when moved axially rearward.

9. The explosion vent fork as set forth in claim 1 wherein said second link is connected to a central portion of said corresponding rear jaws, and said second actuator rod urges said two rear jaws to close said corresponding locking slots when moved axially forward.

10. The explosion vent fork of claim 9, wherein the rear jaw is in the shape of a rearwardly concave arc.